more... > Plant Disease Clinic > Forms > Nematode Assay Form [Image: Root-knot nematode damage.] Nematode assay form is now available as a fill-in form. It should be included with all samples submitted for nematode analysis. Plant Disease Submission Form for General Public [Image: Disease Submission Form] Provide all the information required on Plant Disease Submission Form for rapid and accurate diagnosis of plant health problems. Completed form must accompany the sample submitted to Plant Disease Diagnostic Clinic for diagnosis. Louisiana Distance Diagnostic Network Link [Image: Louisiana Distance Diagnostic Network.] The Louisiana Distance Diagnostic Network (LDDN) is for the use of LCES Agricultural and Natural Resources Agents only. The diagnostic response is sent ONLY to the specialist who submitted the sample, not the client. This site is password protected and unavailable to the general public. FOR GENERAL PUBLIC: If you have a digital or physical sample you would like to submit to the plant disease diagnostic clinic, please contact your county extension agent.