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Disease Control and Pest Management

Harvesting Method Effects on Aflatoxin Levels in Arizona Cottonseed. T. E. Russell, Associate research scientist, Department of Plant Pathology, University of Arizona, Tucson 85721; P. von Bretzel(2), and J. Easley(3). (2)(3)Research associate, and research assistant, respectively, Department of Plant Pathology, University of Arizona, Tucson 85721. Phytopathology 71:359-362. Accepted for publication 19 September 1980. Copyright 1981 The American Phytopathological Society. DOI: 10.1094/Phyto-71-359.

During 1976, 1977, and 1978 season in Arizona, a comparison was made between the aflatoxin levels found in seed from first-picked cotton harvested by conventional spindle pickers and aflatoxin levels detected in seed from second- or third-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 (2279) in ground-gleaned seed than in first-picked, spindle-harvested seed in all collections made during the 3-yr study.

Additional keywords: Aspergillus flavus.