Home > Crops & Livestock > Crops > Corn > Insects > Managing Corn and Grain Sorghum Insect Pests [Image: insects] 2009 recommended treatments and thresholds for corn and grain sorghum insects. Brief biological sketches of pests included. (PDF Format Only) Louisiana Insect Pest Management Guide [Image: Pest Management Guide] This 2009 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 using beneficial insects to control pest populations. A section on organic gardening also is included. Seed Treatments: An Alternative Pesticide Delivery System [Image: Stink Bug] In Louisiana, southern green stink bugs and brown stink bugs (Figures 1, 2 and 3) have become common pests of corn, cotton, grain sorghum, soybean and wheat. In corn, an infestation can cause injury to the plant from seedling emergence through ear formation and grain development. Seedlings punctured by stink bugs exhibit small holes surrounded by localized dead tissue.