Abstract
During 1976, 1977 and 1978 season in Arizona, a comparison was made between the aflatoxin [due to Aspergillus flavus infection] levels found in seed from first-picked cotton harvested by conventional spindle pickers and aflatoxin levels detected in seed from 2nd- or 3rd-picked cotton harvested by ground-gleaning equipment. Samples from both gins and cotton trailers in the field were analyzed. Levels of total aflatoxins were consistently higher (2-279x) in ground-gleaned seed than in first-picked, spindle-harvested seed in all collections made during the 3 yr study.

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