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| [Image: single spikerush plant]Spikerush (Eleocharis sp.) Photographs of spikerush (Eleocharis sp.) |
| [Image: insect guide]Louisiana Insect Pest Management Guide This 2012 guide was compiled by LSU AgCenter experts and includes regulations, precautions and suggestions for pest control in Louisiana. Detailed topics include drift of pesticides, hazards of pesticides to beneficial insects and wildlife, phytotoxicity and use of beneficial insects to control pest populations. A section on organic gardening also is included. |
| [Image: South American Rice Leaf Miner]The South American Rice Leaf Miner The South American rice leaf miner, Hydrellia wirthi Korytkowski, is an insect pest of rice in the United States. It affected several rice fields in southwest Louisiana and southeast Texas in 2004. Topics include description and life cycle, injury, scouting and managment. Color photos also included. (PDF Format Only) |
| [Image: mature rice kernel dissected]Parts of Mature Rice Kernel The mature rice kernel or grain is made up of several parts. |
| A General Guide for Using Salt Water on Rice Salt water can become a problem in rice production, especially in some areas in dry years. This table can be used as a guide for tolerance of rice to salt water. |
| [Image: 2005 Louisiana Rice Research Verification Program Report ]2005 Louisiana Rice Research Verification Program Report Copy of the 2005 Louisiana Rice Research Verification Program Report. These recommendations included, but were not limited to: Fertilization, weed control, disease control, insect control and water management to a limited degree. The fields were followed from planting to harvest. |
| [Image: 2004 Louisiana Rice Research Verification Program Report]2004 Louisiana Rice Research Verification Program Report Copy of the 2004 Louisiana Rice Research Verification Program Report. These recommendations included, but were not limited to: Fertilization, weed control, disease control, insect control and water management to a limited degree. The fields were followed from planting to harvest. |
| [Image: 2003 Louisiana Rice Research Verification Program Report]2003 Louisiana Rice Research Verification Program Report Copy of the 2003 Louisiana Rice Research Verification Program Report. These recommendations included, but were not limited to: Fertilization, weed control, disease control, insect control and water management to a limited degree. The fields were followed from planting to harvest. |
| [Image: 2002 Louisiana Rice Research Verification Program Report]2002 Louisiana Rice Research Verification Program Report Copy of the 2002 Louisiana Rice Research Verification Program Report. These recommendations included, but were not limited to: Fertilization, weed control, disease control, insect control and water management to a limited degree. The fields were followed from planting to harvest. |
| [Image: Louisiana Rice Research Verification Program]2001 Louisiana Rice Research Verification Program Report Copy of the 2001 Louisiana Rice Research Verification Program Report. These recommendations included, but were not limited to: Fertilization, weed control, disease control, insect control and water management to a limited degree. The fields were followed from planting to harvest. |
| [Image: Louisiana Rice Research Verification Program]2000 Louisiana Rice Research Verification Program Report Copy of the 2000 Louisiana Rice Research Verification Program Report. These recommendations included, but were not limited to: Fertilization, weed control, disease control, insect control and water management to a limited degree. The fields were followed from planting to harvest. |
| [Image: Louisiana Rice Research Verification Program]1998 Louisiana Rice Research Verification Program Report Copy of the 1998 Louisiana Rice Research Verification Program Report. These recommendations included, but were not limited to: Fertilization, weed control, disease control, insect control and water management to a limited degree. The fields were followed from planting to harvest. |
| [Image: cover of 2006 Louisiana Rice Research Verification Report]2006 Louisiana Rice Research Verification Report The program continues to provide an accurate evaluation of current recommendations and provide insight into other areas of research. |
| [Image: Louisiana Rice Research Verification Program]1999 Louisiana Rice Research Verification Program Report Copy of the 1999 Louisiana Rice Research Verification Program Report. These recommendations included, but were not limited to: Fertilization, weed control, disease control, insect control and water management to a limited degree. The fields were followed from planting to harvest. |
| [Image: leaves of arrowhead]Arrowhead, Duck-Potato (Sagittaria sp.) Photographs of arrowhead or duck-potato (Sagittaria sp.) |
| [Image: Hybrid Rice Production Costs and Returns]Hybrid Rice Production Costs and Returns: Comparisons with Conventional & Clearfield Varieties This report presents estimates of expected production cost differences for hybrid rice production in Louisiana compared with production of conventional and Clearfield varieties. Estimates of breakeven rice yield increases required to cover increased production costs as well as impacts of milling yield on rough rice market price are also presented. |
| [Image: injury symptoms of black rice bug]Amaurochrous dubius (formerly called Black Rice Bugs) Both nymphs and adults cause damage by feeding with their piercing mouthparts. |
| [Image: inflorescences of water paspalum]Water Paspalum (Paspalum hydrophilum) Photographs of water paspalum (Paspalum hydrophilum) and its distinguishing features. |
| [Image: no till drill]Drill Calibration A series of slides on the method used to correctly calibrate a drill for rice planting. |
| [Image: Rice/Crawfish Rotation]Economic Impact of Crawfish on Rice in a Rice/Crawfish Rotation This report evaluates the economic impact of crawfish as a rotational crop on the rice enterprise, indentifying specific costs imposed on the rice enterprise unique to crawfish production and presenting relevant economic principles in the assignment of production costs to alternative farm enterprises from a farm accounting perspective. |
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| [Image: tractor tire]The Louisiana Rice Insects Blog This blog is being prepared by Natalie Hummel, Ph.D. – LSU AgCenter Extension Entomologist. I’ll use this blog to keep you informed about the Louisiana rice extension entomology program. There is a lot going on – even during the off-season. I’ll try to post updates every few days. I might also talk about some of my related work in fruits and nuts. Please provide feedback about what information is most useful to you. |
| Rice Diseases Information Rice disease information, rice disease identification, rice disease management, rice disease photo galleries, rice diseasse articles, and rice fungicide links rice diseases. |
| Drill Calibration A series of PowerPoint slides outlining a simple procedure to calibrate a grain drill. |
| Long, Medium and Short Grain Types Here's a photograph of long, medium and short rice grains with an explanation of how the classes are determined. |
| Ducksalad (Heteranthera limosa) photograph of ducksalad in flower and compared to Roundleaf Mud Plantain |
| Swamp Dayflower (Murdannia keisak) Photographs of Swamp Dayflower (Murdannia keisak syn Aneilema keisak). |
| Louisiana's Suggested Chemical Weed Control Guide This 2012 guide includes helpful information on herbicides and weed control with detailed suggestions for aquatics, commercial nursery stock, field crops, forestry, fruit crops, home gardens, lawns and many other Louisiana crops. It includes information on different types of herbicide registrations, as well as information on herbicide labels and restricted uses. Also included are sprayer calibration techniques, suggestions for reducing herbicide drift and a guide to proper spray tip selection. |
| Roundleaf Mudplantain (Heteranthera reniformis) Photographs of roundleaf mudplantain (Heteranthera reniformis) and in comparison to ducksalad (H. limosa) |
| Amazon Sprangletop (Leptochloa panicoides) Photographs of Amazon Sprangletop (Leptochloa panicoides) |
| Red Sprangletop (Leptochloa filiformis) Photographs of red sprangletop (Leptochloa filiformis) |
| A General Guide for Using Salt Water on Rice A presentation based on a publication by a similar name describing the effects of salt water on rice. |
| Louisiana Suggested Chemical Weed Management Guide This 2012 guide includes helpful information on herbicides and weed control with detailed suggestions for aquatics, commercial nursery stock, field crops, forestry, fruit crops, home gardens, lawns and many other Louisiana crops. It includes information on different types of herbicide registrations, as well as information on herbicide labels and restricted uses. Also included are sprayer calibration techniques, suggestions for reducing herbicide drift and a guide to proper spray tip selection. |
| Louisiana Suggested Chemical Weed Management Guide This 2012 guide includes helpful information on herbicides and weed control with detailed suggestions for aquatics, commercial nursery stock, field crops, forestry, fruit crops, home gardens, lawns and many other Louisiana crops. It includes information on different types of herbicide registrations, as well as information on herbicide labels and restricted uses. Also included are sprayer calibration techniques, suggestions for reducing herbicide drift and a guide to proper spray tip selection. |
| Brook Paspalum syn. Canoegrass(Paspalum acuminatum) Photographs of brook paspalum and its distinguishing features. |
| Rice Levee Billbug (Sphenophorus sp.) This large (about 1 cm long) billbug or snout beetle is an occasional pest of rice in Louisiana. |
| How to scout for colaspis in rice - video For several years Arkansas rice farmers have had to deal with grape colaspis, a small beetle, whose larvae feed on the roots of rice. Rice drilled into soybean stubble is particularly susceptible to damage from this insect. Larval feeding can cause more than 50 percent reduction in stand. This season colaspis has caused stand reductions in a few rice fields in Acadia, Evangeline and St. Landry parishes. This short video will train you to scout for colaspis in rice. (Runtime: 3:58) |
| 2nd Annual Advanced Rice Entomology Training The following slide shows will be presented at the second annual LSU AgCenter rice entomology training. Date: March 2, 2011, Time 9:00 a.m.-noon,Location: LSU AgCenter Rice Research Station Auditorium – Crowley, La. "Insect infestations relation to rice crop phenology" -- Michale J. Stout; “Rice stink bug management” – Michael J. Stout, Natalie A. Hummel; “Identification of immature stages of insects that attack rice" – Richard N. Story |
| Rice Insects Information Information about rice insects. |
| Billbugs Billbugs injure multiple crops such as corn, sugarcane, wheat, rye and barley. Occasionally, it can be found in rice. |
| European Corn Borer European Corn borer has the potential for severe infestations in rice in central and northern latitudes of Louisiana. |
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| Rice Stalk Borer Rice stalk borer is a sporadic pest of rice in Louisiana. |
| Mexican Rice Borer The Mexican rice borer is a devastating pest of sugarcane and a serious pest of rice. |
| Sugarcane Borer Sugarcane borer injury to rice results from stem borer larvae feeding on plant tissue as they tunnel inside the stem. |
| Chinch Bug Chinch bugs tend to be more of a problem in drill-seeded rice because of the delayed application of permanent flood. |
| Colaspis spp. This pest can be found damaging fields of dry-seeded rice in a soybean-rice rotation. |
| Rice Stink Bug Rice stink bug is the most important late-season pest in Louisiana rice. |
| Rice Seed Midge Rice seed midge larvae feed on the embryo of germinating seeds or the developing roots of young seedlings. |
| South American Rice Miner South American rice miner maggot injures rice, causing large, elongated lesions on the margins of emerging leaves. |
| Smaller Rice Leafminer Larvae tunnel between the layers of the leaf, attacking and killing leaves closest to the water. |
| Panicle Rice Mite The panicle rice mite injures rice plants both directly by feeding on cells of rice leaves, stems and kernels and indirectly by vectoring and/or facilitating the establishment of pathogens. |
| Thrips Both larvae and adults feed on young rice plants. Thrips injure plants by using a scraping mouth part to tear the leaf tissue, and then extract the plant liquids. This injury causes desiccation and is typically not a problem, except during dry, windy conditions. |
| Aphids Aphids are small, soft-bodied insects with piercing sucking mouthparts. Aphids suck the juices from rice and cause stunting and chlorosis. |
| Southern Green Stink Bug The southern green stink bug has piercing-sucking mouth parts. Usually it is first noticed as dead or dying leaves on isolated plants or groups of plants. |
| Fall Armyworm Fall armyworm larvae feed on the leaves of young rice plants, destroying large amounts of tissue. |
| Rice Water Weevil The rice water weevil is the most important early season insect pest of rice in Louisiana. |
| Rice Field Notes Field Notes is a weekly newsletter published during the rice growing season reporting observations and providing production information to subscribers. It utilizes photographs as a foundation for discussion and to illustrate various aspects of rice production on a broad range of topics from fertilization to pest management. |
| Micrograph of Burkholderia Glumae Micrograph of Burkholderia glumae stained with safari red. |
| Rice Bacterial Panicle Blight Management 2012 Prepared by Don Groth, Professor, LSU AgCenter Rice Research Station, Crowley, LA and Clayton Hollier, Professor, LSU AgCenter, Department of Plant Pathology and Crop Physiology, Baton Rouge LA. |
| Rice Blast Disease Management 2012 Prepared by Don Groth, Professor, LSU AgCenter Rice Research Station, Crowley, LA and Clayton Hollier, Professor, LSU AgCenter, Department of Plant Pathology and Crop Physiology, Baton Rouge LA. |
| White Tip Nematode Damage White tip nematode damage to rice leaf tip (Note shredded tissues). |
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| Rice Cercospora Disease Complex Management 2012 Prepared by Don Groth, Professor, LSU AgCenter Rice Research Station, Crowley, LA and Clayton Hollier, Professor, LSU AgCenter, Department of Plant Pathology and Crop Physiology, Baton Rouge LA. |
| Rice Kernel and False Smut Disease Management 2012 Prepared by Don Groth, Professor, LSU AgCenter Rice Research Station, Crowley, LA and Clayton Hollier, Professor, LSU AgCenter, Department of Plant Pathology and Crop Physiology, Baton Rouge LA. |
| Rice Sheath Blight Disease Management 2012 Prepared by Don Groth, Professor, LSU AgCenter Rice Research Station, Crowley, LA and Clayton Hollier, Professor, LSU AgCenter, Department of Plant Pathology and Crop Physiology, Baton Rouge LA. |
| Windblown Distribution of Floating Inoculum Arial view of sheath blight damage in a rice field showing windblown distribution of floating inoculum early in the season. |
| Rice Stem Rot Disease Management 2012 Prepared by Don Groth, Professor, LSU AgCenter Rice Research Station, Crowley, LA and Clayton Hollier, Professor, LSU AgCenter, Department of Plant Pathology and Crop Physiology, Baton Rouge LA. |
| Rice Water Mold and Seedling Disease Management 2012 Prepared by Don Groth, Professor, LSU AgCenter Rice Research Station, Crowley, LA and Clayton Hollier, Professor, LSU AgCenter, Department of Plant Pathology and Crop Physiology, Baton Rouge LA. |
| Sclerotial Development Sclerotial development on sheath blight lesion. |
| Perennial Grasses Infesting Louisiana's Rice This publication includes keys to identification of water paspalum, brook paspalum, knotgrass and perennial barnyardgrass. (PDF Format Only) |
| Perennial Grasses Infesting Louisiana's Rice This publication includes keys to identification of water paspalum, brook paspalum, knotgrass and perennial barnyardgrass. (PDF Format Only) |
| Rice Cercospora Disease Complex Management 2012 Prepared by Don Groth, Professor, LSU AgCenter Rice Research Station, Crowley, LA and Clayton Hollier, Professor, LSU AgCenter, Department of Plant Pathology and Crop Physiology, Baton Rouge LA. |
| 2012 Projected Louisiana Rice Production Costs This report presents estimates of projected costs for rice production in Louisiana for the 2012 crop year. Cost estimates are included for typical rice production systems, including conventional tillage and stale seedbed, as well as production of conventional, Clearfield and hybrid rice varieties. Production cost estimates are also included for soybeans, wheat and sorghum production in southwest Louisiana. |
| Salt Water Intrusion Maps, Post Rita The following maps consist of sites that were sampled, analyzed and then ranked, post Hurricane Rita. |
| Salt Water Intrusion Site Data Results, Post Rita The data provided is from the sites that were sampled in the Salt Water Intrusion Maps. Each site is numbered the same as it is on the maps that are provided. |
| Water-Soaked Sheath Blight Lesions Early water-soaked sheath blight lesions on rice stems. |
| Rhizoctonia Solani Mycelium Rhizoctonia solani mycelium growing in agar (Note right angle branching pattern). |
| Severe Symptoms Severe rice seedling blight symptoms. |
| Screening for Leaf Blast Resistance Screening for leaf blast resistance in an upland nursery showing dead susceptible plants to undamaged resistant plant symptoms |
| Single Lesions Single white leaf streak lesions on rice leaves. |
| Multiple Lesions On Rice Leaves Multiple white leaf streak lesions on rice leaves. |
| Typical Symptoms Typical white leaf streak symptoms. |
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| Rice Leaf Smut Diseases Video (Video, 0:27) Complete video gallery of the rice Leaf Smut disease photographs. |
| Rice Leaf Scald Diseases Video (Video, 0:22) Complete video gallery of the rice Leaf Scald disease photographs. |
| Rice Kernel Smut Diseases Video (Video, 0:22) Complete video gallery of the rice Kernel Smut disease photographs. |
| Rice False Smut Diseases Video (Video, 0:34) Complete video gallery of the rice False Smut disease photographs. |
| Rice Crown Sheath Rot Diseases Video (Video, 0:19) Complete video gallery of the rice Crown Sheath Rot disease photographs. |
| Rice Cercospora Diseases Video (Video, 0:58) Complete video gallery of the rice Rice Cercospora, including Narrow Brown Leaf Spot, disease photographs. |
| Brown Spot Diseases Video (Video, 0:27) Complete video gallery of the rice Brown Spot disease photographs. |
| Bacterial Panicle Blight Diseases Video (Video, 1:00) Complete video gallery of the rice Bacterial Panicle Blight disease photographs. |
| Rice Grain Spotting & Peck Diseases Video (Video, 0:21) Complete video gallery of the rice Grain Spotting and Peck disease photographs. |
| Peck-Infected Milled Rice Grain Peck-infected milled rice grain showing areas of discolored rotting endosperm. |
| Scar Symptoms Rice stink bug feeding scar symptoms on rice grain. |
| False Smut Galls Removed False smut galls removed by a dockage machine from rice grain. |
| False Smut Fungal Spores Rice grain replaced by false smut fungal spores and sclerotia. |
| Close Up of Rice Grain Up close of a rice grain replaced by a mass of false smut spores. |
| Darker Symptoms Later darker symptoms and signs of false smut infection. |
| Severe Infection Severe infection of rice grain by false smut. |
| Rice Grain Rice grain showing false smut symptoms and signs of infection. |
| Rice Seedhead Rice seedhead showing symptoms and signs of infection with false smut. |
| Early Symptoms Early symptoms and signs of false smut infection (Note silver cover over spores). |
| Very Early Symptoms Very early symptoms and signs of false smut infection. |
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| Root Rot Diseases Video (Video, 0:15) Complete video gallery of the rice Root Rot disease photographs. |
| Rice Black Kernel Diseases Video (Video, 0:15) Complete video gallery of the rice Black Kernel disease photographs. |
| Rice Variety Update 2011, Steve Linscombe A presentation on rice variety recommendations for 2011. |
| Rice Weed Management, Eric Webster A presentation on weeds and weed control recommendations for 2011. |
| Rice Disease Management Update 2011, Don Groth A review of selected diseases of rice with recommendations for their control. |
| 2010 in Review and Recommendations for 2011, Johnny Saichuk Presention given at producer meetings in January 2011 outlining effects of heat and outcrossing on the crop with recommendations for 2011. |
| 2000 Louisiana Rice Acreage by Variety by Parish Summaries Summaries of Louisiana rice acreage by variety and by parish. |
| Rice Fungicide Links Links to important information about rice fungicide. |
| 2012 Projected Rice Cash Flow Model The 2012 Projected Rice Cash Flow Model is an Excel spreadsheet model that allows rice producers in Louisiana to project rice income and expenses for their operation for the 2012 crop year. |
| Hedge Hyssop (Gratiola sp.) Photographs of Hedge Hyssop plants. |
| 2001 Louisiana Rice Acreage by Variety by Parish Summaries Summaries of Louisiana rice acreage by variety and by parish. |
| Texasweed (Caperonia palustris) Photographs of Texasweed a.k.a. Mexicanweed, Birdeye |
| Alligatorweed (Alternanthera philoxeroides) Photographs of alligatorweed and its parts. |
| Jointvetch (Aeschynomene sp.) Photographs of Jointvetch (Aeschynomene sp.) and its parts. |
| 2008 Projected Rice Cash Flow Model The 2008 Projected Rice Cash Flow Model is an Excel spreadsheet model which allows rice producers in Louisiana to project rice income and expenses for their operation for the 2008 crop year. |
| 2007 Louisiana Rice Research Verification Program Report Copy of the 2007 Louisiana Rice Research Verification Program Report. These recommendations included, but were not limited to: Fertilization, weed control, disease control, insect control and water management to a limited degree. The fields were followed from planting to harvest. |
| Louisiana Rice Share Rent Evaluation Model The Louisiana Rice Share Rent Evaluation Model was developed to assist rice producers in the evaluation of producer and landlord returns for share rent arrangements on their rice farming operations. The model is an Excel spreadsheet which allows for the estimation of net returns per planted acre for both grower and landlord / waterlord for alternative rental arrangments. |
| 2008 Projected Louisiana Rice Production Costs This report presents estimates of projected production costs for rice production in Louisiana for the 2008 crop year. Cost estimate are included for typical rice produciton systems, including conventional tillage, stale seedbed, production in rotation and fallow, as well as produciton of conventional and herbicide-resistant varieties. Production cost estimates are also included for soybeans, wheat and sorghum in Southwest Louisiana. |
| Farmers Urged Not To Plow Salt-contaminated Rice Fields Rice farmers whose fields have high salt levels from Hurricane Rita’s storm surge should avoid plowing their fields, according to experts with the LSU AgCenter. |
| Production Economics Comparison of Clearfield vs. Clearfield Hybrid Rice Varieties This report presents estimates of expected production cost differences in Clearfield hybrid rice production in Louisiana compared with production of conventional Clearfield varieties. Analysis compares differences between production of varities CLXL729 and CLXL745 to CL151. Estimates of breakeven rice yield increases required to cover increased production costs as well as impacts of milling yield on rough rice market price are also presented. |
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| 2009 Projected Rice Cash Flow Model The 2009 Projected Rice Cash Flow Model is an Excel spreadsheet model which allows rice producers in Louisiana to project rice income and expenses for their operation for the 2009 crop year. |
| 2009 Projected Louisiana Rice Production Costs This report presents estimates of projected production costs for rice production in Louisiana for the 2009 crop year. Cost estimates are included for typical rice production systems, including conventional tillage, stale seedbed, production in rotation and fallow, as well as production of conventional and herbicide-resistant varieties. Production cost estimates are also included for soybeans, wheat and sorghum production in southwest Louisiana. |
| Crown Rot Crown rot of rice is believed to be caused by a bacterial infection – although this disease is rarely observed. Symptoms first appear during tillering. (PDF Format Only) |
| Brown Spot Brown spot is also called Helminthosporium leaf spot. It is one of the most prevalent rice diseases in Louisiana. (PDF Format Only) |
| 1999 Louisiana Rice Acreage by Variety by Parish Summaries Summaries of Louisiana rice acreage by variety and by parish. |
| 2002 Louisiana Rice Acreage Distribution Maps Distribution maps of Louisiana rice acreage by parish and variety. |
| Resistance Offers Best Solution For Rice Diseases Developing disease-resistant varieties is the best approach to help farmers fight diseases that afflict rice, said Don Groth, LSU AgCenter plant pathologist at the Rice Research Station in Crowley. |
| 2008 Louisiana Rice Acreage by Variety by Parish Summary Summaries of Louisiana rice acreage by variety and by parish. |
| 2002 Louisiana Rice Acreage by Variety by Parish Summaries Summaries of Louisiana rice acreage by variety and by parish. |
| 2000 Lousiana Rice Acreage Distribution Maps Distribution maps of Louisiana rice acreage by parish and variety. |
| Rice Varieties and Management Tips 2012 recommendations for rice varieties and management tips for them. Decisions about rice varieties are some of the most critical you will make, and those deicisions have to be made early each year. The information in this publication will help you decide which rice varieties are best suited to your particular growing conditions. (PDF Format Only) |
| Rice Varieties and Management Tips 2012 recommendations for rice varieties and management tips for them. Decisions about rice varieties are some of the most critical you will make, and those deicisions have to be made early each year. The information in this publication will help you decide which rice varieties are best suited to your particular growing conditions. (PDF Format Only) |
| Rice Varieties and Management Tips 2012 recommendations for rice varieties and management tips for them. Decisions about rice varieties are some of the most critical you will make, and those deicisions have to be made early each year. The information in this publication will help you decide which rice varieties are best suited to your particular growing conditions. (PDF Format Only) |
| 2003 Louisiana Rice Acreage Distribution Maps Distribution maps of Louisiana rice acreage by parish and variety. |
| 2010 Louisiana Rice Acreage by Variety by Parish Summary A series of tables reporting long grain, medium grain, rice of all types, and ratoon crop acreage by parish and variety for 2010. |
| 2010 Louisiana Rice Acreage by Parish Maps Louisiana state maps showing the distribution of rice acreage by parish for 2010. |
| 2009 Louisiana Rice Acreage by Variety by Parish Summary A series of tables reporting long grain, medium grain, and rice of all types by parish and variety for 2009. Also includes a table of ratoon crop by parish for 2009. |
| 2009 Louisiana Ratoon Crop Acreage Map Louisiana map showing the distribution of ratoon crop acreage by parish for 2009. |
| 2009 Louisiana Medium-Grain Rice Acreage Map Louisiana map showing the distribution of medium-grain rice acreage for 2009. |
| 2007 Louisiana Rice Acreage Distribution Maps Distribution maps of Louisiana rice acreage by parish and variety. |
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| 2007 Louisiana Rice Acreage by Variety by Parish Summary Summaries of Louisiana rice acreage by variety and by parish. |
| 2009 Louisiana Rice Acreage Maps Louisiana maps showing the distribution of rice acreage by types and parishes for 2009. |
| 2004 Louisiana Rice Acreage Distribution Maps Distribution maps of Louisiana rice acreage by parish and variety. |
| 2005 Louisiana Rice Acreage by Variety by Parish Summary Summaries of Louisiana Rice Acreage by variety and by Parish. |
| 2005 Louisiana Rice Acreage Distribution Maps Distribution maps of Louisiana rice acreage by parish and variety. |
| 1999 Louisiana Rice Acreage Distribution Maps Distribution maps of Louisiana rice acreage by parish and variety. |
| 96th Annual Research Report 2004 rice research program included breeding, biotechnology, variety testing, production and distribution of foundation seed, fertilization, soil and water management, cultural practices, weed control, insect control, disease investigations, rice drying, bird control in rice, and physiology studies. The aquaculture research program places emphasis upon production practices, forages, and multi-cropping of crawfish with agronomic crops |
| 2004 Louisiana Rice Acreage by Variety by Parish Summary Summaries of Louisiana rice acreage by variety and by parish. |
| 2011 Louisiana Rice Acreage by Variety by Parish Summary Tables reporting long grain, medium grain, all grain types, Clearfield and hybrid, and ratoon acreage by parish for 2011. |
| 2011 Rice Acreage Maps A series of maps indicating rice acreage by parish by grain type and cultural practices. |
| 3rd LSU AgCenter Advanced Entomology Training - September, 2011 Presentations given at the 3rd LSU AgCenter Advanced Entomology Training. This workshop focused on Mexican rice borer biology and management options in Louisiana rice. Speakers: Natalie Hummel (Dept. of Entomology, LSU AgCenter), M. O. Way (Dept. of Entomology, Texas A&M AgriLife Research Center at Beaumont, TX), Julien Beuzelin (Dept. of Entomology, LSU AgCenter), Mike Stout (Dept. of Entomology, LSU AgCenter), Tad Hardy (LDAF – quarantine program). |
| 2006 Louisiana Rice Acreage Distribution Maps Distribution maps of Louisiana rice acreage by parish and variety. |
| Prevention and Control of Insects Infesting Stored Rice Article that provides instructions of how to prevent and treat insects infesting stored rice. |
| Rice Field Notes 2011 Useful information about rice crops from 2011. Topics include aerial seeding, temperature monitoring, various weed, disease, and insect problems, physiological problems, salt water issues, and other timely topics. |
| 2006 Louisiana Rice Acreage by Variety by Parish Summary Summaries of Louisiana rice acreage by variety and by parish. |
| Rice Stink Bug (Oebalus pugnax) Rice stink bugs (Oebalus pugnax) are the most important insect pest of headed rice in Louisiana. |
| Rice Disease Publications & Identification Information about rice disease identification, rice production handbook, rice diseases of Louisiana, rice disease fact sheets. |
| The Panicle Rice Mite (Steneotarsonemus spinki): A New Pest To Look For In Rice The panicle rice mite is a pest of commercial rice, Oryza sativa L., and also completes its development on the invasive plant Oryza latifolia Desv. During the summer of 2007, breeding facility greenhouses and fields in Arkansas, Louisiana, Texas and New York were found to be infested by PRM. |
| 2010 RWW in Acadia Parish Collection of pages related to the Acadia demonstration sites. |
| Early Management Considerations for Mexican Rice Borer in Louisiana Rice This article summarizes in a few bullet points recommended management practices for Mexican rice borer in Louisiana rice. |
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| Typical Symptoms of Alternaria Leaf Spot Rice leaves showing typical symptoms of Alternaria leaf spot (Note double or kissing lesions on upper leaf). |
| Sheath Blight Photographs of sheath blight symptoms on rice. |
| Effects of Date of Planting on Yield of Selected Rice Varieties A series of PowerPoint slides presenting data on the effect of date of planting on yield and milling of selected rice varieties. Data are based on Dr. Steve Linscombe's date of planting studies at the Rice Research Station. |
| Soil Testing and Analyses A series of PowerPoint slides explaining several aspects of soil testing, analysis and interpretation of results. |
| Relaying: An Intercropping Approach to the Co-culture of Crawfish and Rice (1997) This study was designed to examine the biological and economic efficacy of relaying crawfish into a growing rice crop in an intercropping manner. (PDF format only) |
| August 25, 2011 - Rice stink bug control in second crop rice This week I’ve received a few calls from consultants about high rice stink bug counts in late-planted rice and second crop. With advances in variety yield potential and improvements in second-crop management, the second crop has become important enough to warrant protection (in most situations). |
| Tiny Rice Pest Found In South, Including Louisiana A tiny pest called the “panicle rice mite” has been found in the southern United States, including the LSU AgCenter’s Rice Research Station at Crowley. |
| December 3, 2010 - LSU AgCenter introduces online rice insect guide by Bruce Schultz Solving the whodunit mystery of insect damage in a rice crop will be easier with a new online program developed by the LSU AgCenter. |
| October 1, 2010 - LSU AgCenter Mexican Rice Borer site visit – Beaumont, TX On Monday, Johnny Saichuk (rice specialist), Donna Lee (county agent – East Caroll Parish) and I headed over to Beaumont, Texas for the annual Mexican Rice Borer (MRB) Site Visit. This meeting is held annually to share the latest results of a long-running cooperative research effort between Texas A&M and the LSU AgCenter. |
| August 5, 2010 - Combines are rolling in south Louisiana If you are wondering why I’ve been a little quiet lately, it’s because we’ve been busy cutting test plots and gathering harvest data. After long days in this horrendous heat, it’s hard to find a desire to sit at a computer and write. I’ll wait until all the numbers are in to make any comments about the effect of treatments on yields. In the meantime, I thought you might like to see some equipment in action. The best part of harvest is that it really is a gathering of friends. |
| January 2, 2011 - 2010 in Review Here is a summary of the blog for 2010. Thanks to everyone who followed the content. We hope to make more improvements in 2011. If you have suggestions to improve the content, please send them to me. Happy New Year! |
| January 6, 2011 - iPhone apps for use in Agriculture I recently assembled a list of iPhone apps that have some utility in agriculture or entomology. If you use an iPhone you might be able to use some of these apps in your agricultural endeavors. I’d be curious to know if you have any favorite agriculturally related apps. Also, if you know of any other agricultural apps that are not in my table, please post a comment or e-mail to me: nhummel@agcenter.lsu.edu |
| December 17, 2010 - Mexican rice borer extends reach into Louisiana The Mexican rice borer, a threat to sugarcane and rice, has moved eastward from Texas extending farther into Louisiana. On Nov. 22, 2010, four male adults were found in a pheromone trap about six miles southwest of Sulphur, according to Gene Reagan, LSU AgCenter entomologist. Chris Carlton, director of the Louisiana State Arthropod Museum, confirmed that these trap catches were Mexican rice borers. |
| February 8, 2011 - NipsIt INSIDE insecticide Experimental Use Permit approved by EPA On Feb 7, 2011, US EPA granted the Experimental Use Permit (EUP) for NipsIt INSIDE® Insecticide for seed treatment use in rice. The EUP is for the states of AR, LA, MS and TX for a total of 40,000 acres for 2011. This includes 5,000 acres in Louisiana. Rice water weevil and grape colaspis are target pests on the label. According to the EUP, use of this product is restricted to dry-seeded rice in drill-planters. The seeding rate cannot exceed 15 |
| February 16, 2011 - House Continuing Resolution Details Made Public – proposed cuts would harm LCES critical activities This week the House of Representatives will debate H.R. 1, the Full Year Continuing Resolution (CR), to fund federal departments, agencies, and programs through Sept. 30, 2011. As reported last week, the CR would reduce the topline number for the National Institute of Food and Agriculture (NIFA is the USDA agency that supports Land-grant research and extension) by $217.056 million compared to FY 2010. |
| July 19, 2011 - MRB larvae confirmed in Calcasieu Parish About a week ago Calcasieu Parish County Agent Jimmy Meaux e-mailed me a picture of a borer larva in rice that he suspected was the Mexican rice borer (MRB). This was a highly suspect sample due to a combination of the morphology of the larva and where it was found – which was in the same area where LDAF caught the first adult MRBs in pheromone traps in Louisiana. |
| February 4, 2011 - Rice insecticide seed treatment options in 2011 In the 2011 production season, Louisiana rice producers will have a variety of options for seed treatment in dry-seeded production systems. This article should help make the decision about which seed treatment you may want to consider. |
| November 16, 2010 - Announcing the Louisiana Online Rice Pest Identification Guide. I’m pleased to announce the release of the Louisiana Online Rice Pest Identification Guide. The purpose of this guide is to improve identification of arthropods (insects and mites) that damage rice in Louisiana. Once the arthropod is properly identified, a link to the Louisiana pest management guidelines is provided. Although the arthropods featured infest rice in Louisiana, this online guide should be a useful tool in other Southern rice producing states. |
| November 1, 2010 - "2009 Louisiana rice insect survey" Anna and I have been working together to summarize the 2009 Louisiana rice insects survey data, and the graphs are now starting to take shape. We observed some interesting trends. Over the next couple of weeks, I’ll post a series of blogs that will summarize some of the highlights of our findings. |
| April 25, 2011 -- Stand counts at the St. Landry Parish rice water weevil demo site This blog posting presents pictures of the stand at the St. Landry Parish rice water weevil demonstration site. I also discuss ongoing early-season problems with chinch bugs, rice levee bill bugs and colaspis. |
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| April 20, 2011 -- Colaspis confirmed in Jefferson Davis Parish This morning I admired the moon setting over University Lakes on my way into campus. Wait a minute, I was biking into campus by moonlight? Yep, a sure sign of field season – early mornings and long (but exciting) days. Today we headed down to Jefferson Davis Parish to scout a couple of fields that were suffering from stand loss due to an unknown cause. In one location we are still trying to determine the cause. In the second field we scouted we confirmed a fairly severe colaspis infestation. |
| April 27, 2011 - Bill bugs and chinch bugs reducing rice stands in Calcasieu Parish, Part 2 On the same day, next we looked at a field with the most severe infestation of chinch bugs I have ever witnessed. |
| March 21, 2011- Planting at Acadia Parish rww demo test site On March 16, 2011 we planted the Acadia parish demo test site. This blog posting includes a description of the treatments, field maps and plans for gathering data this season. |
| March 28, 2011- Planting rice water weevil demo sites in Evangeline and St. Landry parishes Last week we planted the rice water weevil demonstration test sites in Evangeline and St. Landry parishes. Both locations are the hybrid variety XL745. At each location we will be comparing the seed treatments CruiserMaxx, Dermacor X-100 and NipsitInside to an untreated check. |
| April 11, 2011- Rice water weevils and colaspis in Louisiana rice On Friday, I headed out to scout rice in Jeff Davis Parish with County Agent Barrett Courville and consultant Rustin Gilder. We scouted a field where Rustin had found a single colaspis larva. We also discussed rice water weevil management. Rice water weevils are already out and infesting fields in southwest Louisiana. You can watch our scouting videos on colapis and rice water weevil for a refresher on how to scout for these pests of rice. |
| April 13, 2011- Rice stand observations at Acadia Parish RWW demo site Today Anna and I met with County Agent Barrett Courville and crop consultant Rustin Gilder at the Acadia Parish demo site, which is farmed by Glen and Wes Simon. We were pleased to find a healthy, rigorous stand of rice. Much of the field is already at tillering stage just two weeks after seedling emergence! This location was planted with XL745 at #25 seeding rate. |
| February 12, 2010 - LATMC conference notes Notes from the LATMC conference and tips on various media deliveries and new media tools. |
| April 9, 2010 - Stand Emergence in St. Landry We scouted fields in St. Landry Parish for colaspis larvae. |
| April 14, 2011- More chinch bugs and a reminder about pest spectrum of rice insecticide seed treatments This morning I received another call about chinch bugs infesting seedling rice – this is the fourth call I’ve had this season, so I want to remind field scouts to be on the lookout for this pest. So far they have been reported in Jeff Davis, Evangeline and St. Landry parishes. In this blog posting I also provide a reminder about which insects are controlled by the different seed treatments. |
| July 25, 2011 - RiceLoop.com – a new online forum connecting the global rice industry A new online forum for the rice community has been created by Kevin Reis (www.firstgrain.com) called RiceLoop. I set up my account last week and posted one comment “Hey Rice Community – is anyone out there using blogging or social media to interact with their rice producers?” Within 12 hours I had 5 comments from three different individuals. |
| July 14, 2011 - Section 18 approved for Tenchu 20SG in LA rice to control rice stink bugs A Section 18 request has been approved by EPA for the use of Tenchu 20SG on up to 50,000 acres of Louisiana rice. This product will provide an alternative mode of action to the pyrethroids that are currently registered for use in Louisiana. The exemption expires October 31, 2011. |
| June 17, 2011 - It’s time to start scouting headed rice for rice stink bugs Time to start scouting for rice stink bugs in headed rice, although it does seem to be coming a little bit earlier than usual. This is probably a result of very early planting of rice in some parts of south Louisiana. Unfortunately, field conditions are favoring a bad year for stink bugs. The drought conditions have killed off grasses that would normally serve as a host/reservoir for stink bugs, so there is a chance they will move more readily into heading rice. |
| January 27, 2010 - Rice Growers meeting Topics and speakers from the Louisiana rice growers meeting – excellent speakers. I really enjoyed the joint meeting of the Louisiana Rice Council and Louisiana Rice Growers Association in Crowley, La last night. The food, fellowship, and speakers were wonderful. |
| April 27, 2011- Bill bugs and chinch bugs reducing rice stands in Calcasieu Parish, Part 1 Today we scouted fields in Calcasieu Parish, which were infested with rice levee bill bugs and chinch bugs. |
| May 6, 2011- Sugarcane beetles and colaspis causing trouble in Jefferson Davis Parish I didn’t set out yesterday knowing the day would play out like it did, but in honor of Cinco de Mayo, we wound up with five insects to discuss. All of which we found in rice fields on Cinco de Mayo. Numero Uno I’ve continued to get a lot of calls about some strange injury in rice – [...] |
| Southern Green Stink Bug (Nezara viridula) The southern green stink bug (Nezara viridula) has one of the widest host ranges of any insect pest. Not surprisingly then, it is occasionally a pest of rice. |
| May 31, 2011 -- The Mexican rice borer continues to move east across Louisiana The Mexican rice borer (MRB) has now been found near Lake Charles, La. It is important that you learn to identify this pest and distinguish it from other borers that can be found in rice or cane. You can study up on the pest by downloading LSU AgCenter numbered pubs which are linked to this blog posting. If you find a larvae in rice or cane and suspect that it is MRB, please call me and we can arrange to pick up the sample. |
| February 2, 2010 - Comparison of Cruiser and Dermacor Set-up for Cruiser and Dermacor seed treatments |
| June 15, 2011 - Comments from the South Farm Tour stop at the Simon RWW test site in Acadia Parish We had an excellent crowd at the final stop of the LSU AgCenter south farm tour in Crowley, La., this morning. For those of you that could not attend, here is what was discussed. |
| June 16, 2011 - Armyworms mowing down rice in Jeff Davis Parish Yesterday, at the Simon field site tour stop, Mr. Eddie Eskew told me about a field of rice that was suffering from a severe infestation of armyworms. Up to this point in the season, I’ve had a few calls about armyworms, but nothing out of the ordinary. We wanted to collect caterpillars to add to our lab colonies on campus, so we headed to the field today. |
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| May 13, 2011 -- The terrible trio – sugarcane beetles, chinch bugs, and colaspis – plus more bill bugs More reports of chinch bugs, bill bugs, colaspis and sugarcane beetles in rice. An update on our rice water weevil demonstration test. Also, the summer field meeting schedule is starting to shape up. |
| May 22, 2011 -- Thrips damaging rice in north Louisiana and MS river flooding On Friday, Nick and I made the trek to West Carroll Parish in north Louisiana to scout a rice field that Richard Costello had called me about on Thursday. We scouted a hybrid rice CruiserMaxx-treated field that is suffering from a thrips infestation. On our drive home, we observed the Morganza Spillway and some of the cropland being effected by the high water levels this year. |
| February 21, 2011 - Planting time is approaching – met with cooperators in Evangeline Parish today It’s almost that time of year again. Today Anna and I met with County Agent Keith Fontenot and Evangeline Parish farmer Kenneth LaHaye to discuss plans for the 2011 rice water weevil demonstration test. The field we will plant had some weedy passes, where a nozzle was accidentally turned off on the boom. This is a good example of why properly timed burndown herbicides are so important. |
| April 19, 2011- More insects reports from Jeff Davis and Evangeline Parish – chinch bugs, thrips, aphids, and rice water weevil adults, Part 1 This week we have had calls about chinch bugs and thrips in rice. We also took stand count observations at the Evangeline Parish test site yesterday. This blog posting discusses chinch bugs, aphids, thrips and some natural enemies (fire ants and ladybugs). |
| April 19, 2011- More insects reports from Jeff Davis and Evangeline Parish – chinch bugs, thrips, aphids, and rice water weevil adults, Part 2 Continued..... |
| Scouting for the panicle rice mite This video will teach you how to scout for the panicle rice mite in a rice field. |
| Estimating Rice Combine Harvest Cost: Performance Rate, Capital Cost, Operating Cost Harvest equipment represents a major crop production expense for most rice farming operations. This report presents information on estimating rice combine harvest cost as well as a users' guide to the related Excel-based rice combine harvest cost producer decision tool. |
| How to Scout for Rice Water Weevils - video The rice water weevil (RWW) is the most important early-season insect pest of rice in Louisiana. Adults of this insect emerge from overwintering sites beginning in early April in southern Louisiana (later in northern Louisiana) and fly to rice fields, where they feed on young rice leaves. Egg-laying commences when standing water is present in fields. This video will train you to scout for RWW larvae & adults in your rice field. (Runtime: 7:16) |
| Rice Water Weevil (Lissorhoptrus oryzophilus) The adult rice water weevil is small (about 1/8 inch or 3mm long). It resembles the cotton boll weevil and other snout beetles. |
| Rice County Agents by Parish The agents are your local contact for all rice-related information produced by the LSU AgCenter. |
| Rice Faculty A list of extension and research faculty to whom questions about rice may be addressed. |
| AgCenter Rice Faculty A list of extension and research faculty to whom questions about rice may be addressed. |
| USDA-RAMP Project Workshop - Rice Mill Insect Pest Management Optimizing Insect Control and Grain Quality On May 10, 2011, Dr. Gene Reagan (LSU AgCenter) and a team of scientists from Oklahoma State University; USDA-ARS Center for Grain and Animal Health Research, Kansas; Arkansas State University; University of Arkansas; and Texas A&M AgriLife Research conducted a USDA-RAMP Project Workshop titled: “Rice Mill Insect Pest Management – Optimizing Insect Control and Grain Quality”. The workshop handout can be accessed at this website. |
| Mannagrass (Glyceria declinata) Photographs of mannagrass (Glyeria declinata) and some of its parts. |
| New Clearfield lines coming for 2010 season The LSU AgCenter has approved the release of two new Clearfield lines for the 2010 growing season, according to Dr. Steve Linscombe, LSU AgCenter rice breeder.The first Clearfield medium-grain (CL261) will be available in the spring for seed and limited commercial production. The line has good yield potential and very good milling and grain quality.Linscombe said work will continue on more medium-grain Clearfield lines.. |
| A CENTURY OF PROGRESS-Rice Research Station contributes to industry’s development Improvements in methods and technology for rice farming have been dramatic during the past century of the Rice Research Station’s existence. |
| No hurricanes, but bad weather still plagues Rice farming in 2009 was much easier and less stressful than the previous year for one main reason – no hurricanes. But bad weather plagued north Louisiana producers, nevertheless. |
| Hybrid rice still years down the road The LSU AgCenter’s Rice Research Station has launched a hybrid rice program, but it could be several years before any results are available for farmers. |
| 2010 Louisiana Rice Research Board Report - PDF The Rice Research Board has provided monies for an AgCenter Communications project to develop a research report highlighting board-funded projects. This publication serves as a report to rice producers about the results from LSU AgCenter projects that their check-off dollars funded. It also serves as a marketing piece for the board and rice industry. |
| Several rice lines showing promise - Jazzman breeder continues work on more varieties Dr. Xueyan Sha knows that as a rice breeder, his current projects are more interesting to farmers than his past accomplishments. |
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| Increasing protein can add more value to rice Research by LSU AgCenter rice researcher Dr. Ida Wenefrida has found multiple benefits from her work aimed at increasing the protein level of rice. |
| Researcher mapping genes resistant to diseases LSU AgCenter plant pathologist Dr. Jong Hyun Ham is working on a project to map genes resistant to major rice diseases, including sheath blight and bacterial panicle blight. |
| Zinc deficiency may be at root of ‘mystery malady’ Has the cause of the mystery malady been solved? LSU AgCenter agronomist Dr. Dustin Harrell has a suspect in the form of zinc deficiency. But the jury is still out. |
| Screening process identifies disease-resistant lines An experimental rice line has to undergo screening for resistance to several diseases before it is considered for advancement in the LSU AgCenter’s rice breeding program. |
| Farmers get new weapon against rice water weevils Rice farmers will have an additional weapon to fight rice water weevils this year. |
| Webster says molinate will be missed for sprangletop control Rice farmers will have to learn to get along without molinate, popularly known as Arrosolo, an effective herbicide on sprangletop. |
| Revised Rice Production Handbook available Revised Rice Production Handbook available |
| 2010 Louisiana Rice Research Board Report The Rice Research Board has provided monies for an AgCenter Communications project to develop a research report highlighting board-funded projects. This publication serves as a report to rice producers about the results from LSU AgCenter projects that their check-off dollars funded. It also serves as a marketing piece for the board and rice industry. |
| Rush looks back over 39-year career of fighting rice diseases When he came to Louisiana in 1970, Dr. Chuck Rush started his LSU AgCenter career conducting rice research, and 39 years later he’s still searching for answers. |
| 2009 Rice Research Report The Rice Research Board has provided monies for an AgCenter Communications project to develop a research report highlighting board-funded projects. This publication serves as a report to rice producers about the results from LSU AgCenter projects that their check-off dollars funded. It also serves as a marketing piece for the board and rice industry. |
| 2009 Louisiana Rice Research Board Report The Rice Research Board has provided monies for an AgCenter Communications project to develop a research report highlighting board-funded projects. This publication serves as a report to rice producers about the results from LSU AgCenter projects that their check-off dollars funded. It also serves as a marketing piece for the board and rice industry. |
| Eclipta syn. Yerba de Tago (Eclipta prostrata) Eclipta is a member of the Sunflower family, Asteraceae. Its flowers are numerous in a tight head. |
| Cercospora remains slight threat for 2009 The threat of Cercospora will remain a slight possibility for the 2009 crop, even though it hasn’t been a widespread problem since 2006, according to Dr. Don Groth, LSU AgCenter pathologist at the Rice Research Station. |
| Molecular biologist on mission to find genes of interest LSU AgCenter molecular biologist Dr. Herry Utomo is on a mission to find genes of interest to improve rice varieties. |
| Aromatic rice likely to be released for 2009 season After 12 years of development by the LSU AgCenter, an experimental line of an aromatic Jasmine-type rice is a likely candidate for release for the 2009 growing season. |
| Rice Research Board Members Members of the Louisiana Rice Research Board |
| From the Louisiana Rice Research Board We just completed another usual unusual year. It seems each crop year is unique in its own way. We look to this next one in 2009 and we see uncertainty even more than ever. As Donald Rumsfeld once said, “We have a list of known unknowns.” |
| New farm bill increases level of complexity; economist working on ‘decision tools’ The new federal farm bill passed recently by Congress has increased the level of complexity faced by farmers. |
| LSU AgCenter Communications supports Louisiana Rice LSU AgCenter Communications has been actively supporting the efforts of the Louisiana Rice Research Board, rice growers across the state and AgCenter faculty members involved in rice research for more than eight years. |
| RiceCAP project likely to improve varieties Improvements in rice varieties are likely from the RiceCAP project, a collaboration involving the LSU AgCenter, eight other universities and the U.S. Department of Agriculture. |
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| Variety development LSU AgCenter rice breeder Dr. Xueyan Sha makes a cross by using a flowering rice plant from the greenhouse. |
| Rice specialist relaying his ‘Field Notes’ to producers Dr. Johnny Saichuk, LSU AgCenter Extension rice specialist, has become a traveling correspondent, relaying observations and thoughts in his weekly “Field Notes.” |
| CHEMICALS OFFER PROMISE in battling water weevils, other insects LSU AgCenter entomologist Dr. Mike Stout is continuing his work to help farmers with their No. 1 insect pest, the rice water weevil. |
| Broadleaf weeds, sedges present more problems in North Louisiana Broadleaf weeds and sedges have become more problematic in recent years in North Louisiana rice fields, probably because of the increased use of Command and other herbicides with limited broadleaf and sedge activity, according to Dr. Bill Williams, an LSU AgCenter weed management specialist at its Scott Research, Extension and Education Center. |
| Rice Research Report Masthead Rice Research Report Masthead |
| 2009 Louisiana Rice Research Board Funded Projects The new and continued projects funded by the Louisiana Rice Research Board |
| Red Ludwigia syn. Waterpurslane (Ludwigia repens syn. Isnardia repens) Photogaphs of red ludwigia or waterpurslane. |
| Severe Damage On Rice Leaves Severe white leaf streak damage on rice leaves. |
| Early Rice Leaf Tip Discoloration Early rice leaf tip discoloration caused by the white tip nematode. |
| Pathogen Hyphae Radiating Out Into the Water Rice seed infected with water mold showing pathogen hyphae radiating out into the water. |
| Early Symptoms of Stem Rot Early symptoms of rice stem rot (Note black angular lesions). |
| Parrot Beak Symptom Curved deformed palea and lemma of rice grain, parrot beak symptom. |
| Sheath Spot Symptoms Sheath spot symptoms on rice leaf sheaths. |
| Close Up View of Sheath Rot Lesion Close up view of sheath rot lesion (Note lack of interveinal discoloration unlike Cercospora infection). |
| Young Culture Rhizoctonia Solani Young culture of Rhizoctonia solani grown on potato dextrose agar showing mycelium and sclerotia formation. |
| Symptoms of Seedling Blight Rice seedlings with symptoms of seedling blight. |
| Fine Roots of Rice Fine roots of rice rotted by various fungal pathogens (also called feeder root necrosis). |
| Pyricularia Grisea Ten-day old Pyricularia grisea colony on rice leaf agar showing fungal mycelium and spore formation (blue gray area) |
| Symptoms of Infection Close up view of rice leaf showing signs and symptoms of infection with leaf smut. |
| Chevron Leaf Scald Symptoms Rice leaf with chevron leaf scald symptoms (Note light and dark bands). |
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| Tilletia Barclayana Tilletia barclayana spores from rice grain. |
| Spotted and Pecky Rice Grain Various fungi growing out of spotted and pecky rice grain onto potato dextrose agar. |
| Ustilaginoidea Virens Ustilaginoidea virens spores from infected rice grain. |
| Gaeumannomyces Graminis Mycelium Gaeumannomyces graminis mycelium growing on a rice stem. |
| Foot Rot Symptoms Bacterial infection causing foot rot symptoms of the rice crown. |
| Micrograph of Spores Micrograph of spores produced on a rice leaf. |
| Cochliobolus Miyabeanus Spores of the rice brown spot pathogen Cochliobolus miyabeanus. |
| Curvularia lunata Fungal spores of the black kernel pathogen Curvularia lunata |
| Burkholderia glumae Burkholderia glumae colony on King’s medium B medium (Note yellow green toxin production in agar). |
| Crown Sheath Rot Other names for this disease include brown sheath rot, Arkansas foot rot and black sheath rot. Crown sheath rot has been considered a minor disease of rice, but reports from Texas suggest severe damage can occur. |
| False Smut False smut is a minor grain disease of rice in Louisiana – although it occasionally develops to epidemic levels in certain areas and is more common on rice grown in the northern parts of the state. (PDF Format Only) |
| Grain Spotting and Pecky Rice Many fungi infect developing grain and cause spots and discoloration on the hulls or kernels. Kernels discolored by fungal infections or insect damage commonly are called pecky rice or peck. (PDF Format Only) |
| Kernel Smut Kernel smut of rice normally is a minor disease in Louisiana but can become epidemic in local areas, especially the farther north the rice is grown. (PDF Format Only) |
| Leaf Scald Leaf scald is present in the southern rice-growing areas of the United States and in Louisiana each year. The disease affects leaves, panicles and seedlings, and its pathogen is seed-borne and survives between crops on infected seeds. (PDF Format Only) |
| Narrow Brown Leaf Spot Narrow brown leaf spot of rice varies in severity from year to year and is more severe as rice plants approach maturity. (PDF Format Only) |
| Root Rot Root rots are probably among the most common but misdiagnosed diseases of rice. Symptoms can be noted as early as emergence. (PDF Format Only) |
| Seedling Blight Seedling blight, or damping off, is a disease complex caused by several seed-borne and soil-borne fungi. Environmental conditions are important in disease development. Cold, wet weather is most favorable to disease development. (PD Format Only) |
| Sheath Blight Sheath blight has been the most economically significant disease of rice in Louisiana since the early 1970s. Sheath blight is characterized by large oval spots on the leaf sheaths and irregular spots on leaf blades. (PDF Format Only) |
| Sheath Rot Sheath rot of rice symptoms are most severe on the uppermost leaf sheaths that enclose the young panicle during the boot stage. Lesions are oblong or irregular oval spots with gray or light brown centers and a dark reddish-brown diffuse margin. (PDF Format Only) |
| Sheath Spot The disease resembles sheath blight but usually is less severe and has dark brown lesion borders. This disease favors high nitrogen levels but usually is minor on Louisiana rice. No control practices are recommended. (PDF Format Only) |
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| Stackburn It is common on rice around the world. The disease is present in all rice fields in Louisiana. Only occasional incidences are observed, but the disease may be more severe in restricted areas of a field. (PDF Format Only) |
| Stem Rot Stem rot occurs erratically on Louisiana rice. The disease typically appears late in the season when control practices are ineffective or prohibited. Infection tends to cause lodging, making harvesting difficult, and seed sterility. (PDF Format Only) |
| Water Mold and Seed Rot When using the water-seeding method of planting rice, it is difficult to obtain uniform stands of sufficient density to obtain maximum yields. (PDF Format Only) |
| White Leaf Streak The symptoms are similar to the narrow brown leaf spot symptoms except that the lesions are slightly wider with white centers. (PDF Format Only) |
| White Tip Characteristic symptoms appear after tillering. Leaf tips change from green to yellow and eventually to white. The tip withers above the white area, becoming brown or tan and tattered. (PDF Format Only) |
| Rice Diseases Photo Galleries This is a collection of rice disease photographs to help diagnose and understand rice diseases found in Louisiana. |
| Leaf Smut Leaf smut is a widely distributed, but somewhat minor, disease of rice. The fungus produces slightly raised, angular, black spots (sori) on both sides of the leaves. Although rare, it also can produce spots on leaf sheaths. (PDF Format Only) |
| Blast Blast is the most important disease of rice worldwide and the second most important in Louisiana. Yield losses as high as 75 to 90 percent have been observed in Louisiana due to this disease. (PDF Format Only) |
| Black Kernel The fungus causes severe grain discoloration, and after milling, the kernels appear black. (PDF format only) |
| Bacterial Panicle Blight Bacterial panicle blight is a major disease of rice that tends to develop during hot, dry weather. Losses include reduced yield and milling. Losses reported in commercial rice fields vary from a trace to as high as 70 percent. (PDF Format Only) |
| Rice Fertility, Dustin Harrell A presentation on fertilizer recommendations and fertility research on rice. |
| Rice Production Handbook Rice is one of the world’s most important cereal crops. Rice and wheat together make up the majority of the world’s source of calories. They feed the world. Information on general agronomic guidelines, varieties, soils, plant nutrition, fertilization, rice drying, economics and weed, disease and pest management. (Individual chapter pdfs are located at the bottom of the page.) |
| 2011 Projected Louisiana Rice Production Costs This report presents estimates of projected production costs for rice production in Louisiana for the 2011 crop year. Cost estimates are included for typical rice production systems, including conventional tillage, stale seedbed, as well as production of conventional, Clearfield and hybrid varieties. Production cost estimates are also included for soybeans, wheat and sorghum production in southwest Louisiana. |
| Cercospora Net Blotch Riceleaf sheath showing discolored veins; a typical symptom of Cercospora net blotch. |
| 2011 Projected Rice Cash Flow Model The 2011 Projected Rice Cash Flow Model is an Excel spreadsheet model which allows rice producers in Louisiana to project rice income and expenses for their operation for the 2011 crop year. |
| Rice Pests of Louisiana Identification and scouting information for rice water weevils, rice stink bugs, panicle rice mites, rice leafminers and rice stem borers. (PDF format only) |
| 2001 Louisiana Rice Acreage Distribution Maps Distribution maps of Louisiana rice acreage by parish and variety. |
| Rice Field Notes 2010 Useful information about rice crops from 2010. Topics include heat units, soil crusting, seed midge, weed problems, volunteer hybrid rice, insects, diseases, herbicide injury, nutrient deficiencies and toxicities, the impact of high temperatures on the 2010 crop and other topics. |
| 2003 Louisiana Rice Acreage by Variety by Parish Summaries Summaries of Louisiana rice acreage by variety and by parish. |
| Rice Field Notes 2009 Useful information about rice crops from 2009. Topics include: Grain Culture, Nealley Sprangletop and Narrowleaf Aster, Cold Injury and Seed Midge Damage, Drift, Stretched Rice, and Spergula, Volunteer Rice, Weeds, and Ricestar Ht, Unknown Rice Disease, and Hail Damage. |
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| Rice Field Notes 2008 Useful information about rice crops from 2008. Topics include: Bronzing, Chipping, and Herbicide Activity, Weed Seedlings and Chinch Bugs Rice Water Weevils, Fall Panicum, Eclipta, and Bent Seedlings, Red Rice, Seedlings, and Stubble, Chinch Bugs, Lightning Wheat, and Phosphorus Deficiency Memorial Day Edition, and Fungicide Table and Rice Nutrient Problems. |
| Rice Field Notes 2007 Useful information about rice crops from 2007. Topics include: Drill Calibration, Seed Midge, Murdannia, Black Widow, Black Birds, Weed Seedlings, Alligatorweed, Yellow Rice, Rice Blanks, Sugarcane Borer and Herbicide Injury. |
| Rice Field Notes 2006 Useful information about rice crops from 2006. Topics include: Water Weevils, Localized Decline, Newpath injury, Lightning Injury, Horsepower To Pump Water, Torpedograss In Rice, Hydrogen Sulfide, Rice Blast , and Sugarcane Borer. |
| Rice Field Notes 2005 Useful information about rice crops from 2005. Topics include: Internode Elongation (Green Ring), Localized Decline, Black Rice Bugs, South American Rice Miner, Localized Decline, Scouting for Disease, Rice Stink Bug Eggs and Nymphs, Sheath Blight, and Blast. |
| Identifying Herbicide Drift in Rice Herbicide drift symptoms may appear as irregular patterns through a field, uniformly across the entire field or on just one side of a field. Symptoms may be as obvious as dead or dying plants or as subtle as shortened plant internode length. Use this publciation as a photographic guide to assist in identifying a potential herbicide drift event occuring in rice. (PDF format only) |
| Parts Of Grass Spikelet A photograph of a labeled grass spikelet. By definition a grass spikelet is the unit of the inflorscence of a grass, a member of the Poaceae or Gramineae family of plants. It consists of two glumes and one or more florets. |
| Chinch Bugs (Blissus leucopterus leucopterus) Both adult and nymph chinch bugs will feed on rice. |
| Pickerelweed (Pontederia cordata) Photographs of pickerelweed and its parts. |
| European Corn Borer and other Borers in Rice A series of PowerPoint images illustrating the identifying characteristcs of the European corn borer, the rice stalk borer and the sugarcane borer in rice. |
| Biology and Life Cycle of the Rice Stink Bug A series of PowerPoint slides illustrating the biology, life cycle of the rice stink bug and the injury it causes to rice. |
| Rice Drying This publication provides general information on rice drying as an aid to the producer who desires to store and dry on his farm. |
| Red Rice (Oryza sativa) Photographs of red rice (Oryza sativa) and its various forms. |
| Water Starwort (Callitriche heterophylla) Photographs of water starwort (Callitriche heterophylla). |
| Blast of Rice Blast is the most important disease of rice worldwide and the second most important in Louisiana. Yield losses as high as 75 to 90 percent have been observed in Louisiana due to this disease. Use this fact sheet to help you identify and manage rice blast. (PDF Format Only) |
| Stages of Growth Before Heading in Rice A series of photographs depicting key growth stages in the development of rice before heading. Some of these are important in rice managment. |
| A Guide to Poultry Litter Use in Louisiana Rice Production The use of poultry litter on unproductive areas has increased rice productivity levels in many cases above those realized prior to precision leveling. The use of litter in conjunction with inorganic fertilizers also has been reported to improve yields above those found when using inorganic fertilizers alone. Information on the nutrient content, litter sampling, litter sources and general recommendations are included. (PDF format only) |
| Wet Weather Affecting Louisiana Crops More Than Rising Fuel, Fertilizer Costs (Distributed 03/19/03) Wet weather rather than climbing fuel and fertilizer costs is keeping Louisiana farmers from planting corn, according to an expert with the LSU AgCenter. |
| Plant Disease Management Guide This guide for 2012 contains suggestions for management of the most important or more prevalent diseases of Louisiana plants. It includes information on fungicides, bactericides and nematicides, as well as safety precautions for using them. |
| Rice Links Links to other LSU AgCenter Web pages, university Web pages, rice organization Web pages, governmental Web pages and other pages pertinent to rice. |
| Rice Diseases of Louisiana This publication describes the major rice diseases in Louisiana and the southern United States rice-growing region. Detailed color images of bacterial panicle blight, blast, grain smuts, narrow brown leaf spot, shealth blight, sheath rot, stem rot, water mold and stem rot are included. (PDF format only) |
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| Rice Diseases of Louisiana This publication describes the major rice diseases in Louisiana and the southern United States rice-growing region. Detailed color images of bacterial panicle blight, blast, grain smuts, narrow brown leaf spot, shealth blight, sheath rot, stem rot, water mold and stem rot are included. (PDF format only) |
| Hurricane Gustav causes major problems for Louisiana rice farmers (Distributed 09/05/08) Rice is among the many Louisiana agricultural commodities hurt by Hurricane Gustav, although the majority of the crop had been harvested in the southwest Louisiana rice belt before the storm came through. |
| Loss estimates for rice crop at 7.6 percent, soybean crop at 15 percent (Distributed 09/09/08) WHITEVILLE – Farmer Jeffrey Sylvester gazed over a field that looked more suited for water-skiing than growing rice. “There’s a rice crop under that water,” he said. “That’s all standing rice.” |
| Schematic Diagram for Seedling Weed Identification in Rice This guide includes helpful information on identifying weeds in Louisiana rice. The publication contains a schematic guide to help with proper identification of weeds based on specific characteristics of each plant. It also contains photos of each weed listed in the schematic as well as examples showing key characteristics. |
| ‘Acid’ Stimulates Growth In Rice Research continues into the benefits of gibberellic acid, or GA, in rice farming. Treated varieties like Clearfield require less seeding per acre and can stand up cold weather. |
| Plant Disease Management Guide This guide for 2012 contains suggestions for management of the most important or more prevalent diseases of Louisiana plants. It includes information on fungicides, bactericides and nematicides, as well as safety precautions for using them. |
| Biomass Energy Resources in Louisiana A description of how biomass is being used for energy in Louisiana with an emphasis on the potential for expansion in the industry. (PDF format only) |
| Irrigation Pond Saves Groundwater Irrigation ponds can irrigate fields during the summer without resorting to pumping water from wells. |
| Rains Batter Rice, Other Crops; But Cotton May Be Bright Spot Recent rains have drenched Louisiana, and the outlook is not good for the state’s rice crop. Corn and wheat also have taken a beating – but specialists believe the Louisiana cotton crop may have weathered the storm. Double-digit rainfall was recorded in many areas of the state over the past couple of weeks, and totals exceeding 20 inches were seen in some places. Observers even reported as much as 24-27 inches in spots. |
| Aerial Applicators Important; ‘Clinics’ Help With Efficiency (Distributed03/27/03) Rice planting has begun in South Louisiana, but many farmers in the central and northern parts of the state are looking for options because they’ve been delayed by persistent rains and wet field conditions. That’s where the state’s aerial applicators – pilots with specially equipped aircraft – come in. And many of those aerial applicators take advantage of LSU AgCenter services that help them check their equipment. |
| Rice Growers Face Problems Following Storms The salt water that washed over coastal areas in Southwestern Louisiana during Hurricane Rita could greatly affect next year’s rice crop. LSU AgCenter agronomist Dr. Gary Breitenbeck says the high salinity levels in rice fields could lead to decreased yields. (Radio News 12/12/05) |
| Lake Arthur Farmers Try ‘Grooving’ Grooving is a technique for planting rice. Seeds fall fall into shallow grooves seven inches apart, which keeping them in place even in windy conditions. |
| Timing Important With ‘Beyond’ Beyond, made by BASF, is intended for an early post-emergence application between tillering and panicle initiation to control red rice not killed by two applications of Newpath herbicide. Beyond, intended to be used only on Clearfield 161 and XL8 varieties, is in the same chemical family as Newpath. |
| Rice Farmers Excited About 2004 Planting Great prices and good weather have generated plenty of optimism. |
| Stage Set For Rice Diseases, More Problems For Crop Excessive moisture from heavy rainfall has set the stage for disease problems in rice fields. Conditions will be prime for fungal diseases, principally sheath blight and blast. |
| USDA Predicts Crop Increases In La., U.S. Louisiana farmers will plant more acreage in rice, soybeans and cotton but less in corn. |
| Avoyelles Rice Grower Named 2003 Farmer Of Year (Distributed 03/21/03) Robert Thevis calls himself a rice farmer, but the 2003 Louisiana Farmer of the Year grows much more than rice. Thevis farms nearly 2,000 acres in Avoyelles Parish – raising soybeans, corn, milo and, when the weather allows, winter wheat. As a reward for his efforts, he received the state's farmer of the year award Friday evening (March 21). |
| Proactive Approach Needed to Control Pests in Rice Applied properly, Newpath herbicide is an effective remedy for red rice and grasses in Clearfield rice. It's important to spray insecticide after finding rice water weevils because the only pesticides authorized for use after planting are for adults only. |
| To Control Red Rice, the Choice is Clearfield Clearfield 161 tolerates Newpath extremely well, allowing more flexibility for the application timing. With the early versions of the seed, farmers had to spray before emergence and then wait until the plants reached the 4-leaf stage. But 161 allows farmers to apply Newpath after emergence and before the 4-leaf stage, which allows for better red rice control. |
| Researchers Looking For New Ways To Fight Rice Water Weevils (Distributed 04/23/04) LSU AgCenter entomologist Dr. Michael Stout is studying three chemicals that could be used as seed treatment replacements for Icon to fight rice water weevils. Stout is also studying two proposed granular chemicals. |
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