Wednesday, 4 January 2006
4:30 PM - 10:00 PM
Thursday, 5 January 2006
10:00 AM - 10:00 PM
Friday, 6 January 2006
8:00 AM - 5:00 PM

Timing of herbicide applications may influence efficacy of aflatoxin biocontrol

Nicholas Garber, The University of Arizona, Plant Path and Micro, PO Box 210036, Tucson, AZ 85721 and Peter J. Cotty, USDA, Agricultural Research Service, Department of Plant Pathology, University of Arizona, 1140 E. South Campus Drive, Tucson, AZ 85721.

Atoxigenic strains (strains that do not produce aflatoxins) of Aspergillus flavus are used to reduce aflatoxin contamination of cottonseed, peanuts, and corn. The most widely used strain, AF36, has been applied to over 100,000 acres of cotton in Arizona and Texas. Farmers have questioned the potential influences of herbicide applications on performance of AF36. Laboratory studies were performed on some of the most common herbicides used in cotton production in the target states. Results suggest that AF36 applications should be made after herbicide treatments are finished for that year.


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