more... > Plant Pathology & Crop Physiology > Related Links > Department of Plant Pathology and Crop Physiology [Image: Dept of Plant Pathology & Crop Physiology] Link to the Department's LSU website with comprehensive information on the graduate program. Frequency of Colonization of Corn Kernels [Image: Image of title slide] Aflatoxin contamination of corn is a chronic problem among Southern states. Others have demonstrated the efficacy of using atoxigenic isolates of this fungus to lessen aflatoxin contamination of cotton by “competitive exclusion” of toxigenic strains from cotton field soils.