Passage of Boll Rot Fungi Through Alimentary Canal of Cotton Boll Weevil. M. L. Schroeder, Graduate Assistant, Department of Plant Pathology and Crop Physiology, Louisiana Agricultural Experiment Station, Louisiana State University, Baton Rouge 70803. J. P. Snow, Professor, Department of Plant Pathology and Crop Physiology, Louisiana Agricultural Experiment Station, Louisiana State University, Baton Rouge 70803. Plant Dis. 66:1049-1050. Accepted for publication 24 February 1982. Copyright 1982 American Phytopathological Society. DOI: 10.1094/PD-66-1049.

Conidia of Alternaria, Fusarium, Colletotrichum, and Curvularia spp. causing boll rot of cotton (Gossypium hirsutum) remained viable after passage through the alimentary canal of the cotton boll weevil, Anthonomus grandis. The duration of discharge of conidia in the feces varied with the fungus. Most of the conidia of all the fungi were expelled within the first 6 hr after a 24-hr exposure to a sporulating culture.

Keyword(s): epidemiology.