Crop Science Journal of Natural Resources and Life Sciences Education
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Published in Crop Sci 16:259-261 (1976)
© 1976 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Aflatoxins in Cottonseed: Effects of Pink Bollworm Control

J. L. McMeans, C. M. Brown, L. L. Parker and R. L. McDonald2

In 1971 and 1973 field tests were conducted to determine if control of the pink bollworm [Pectinophora gossypiella (Saunders)] at or below 5% infestation would reduce the incidence of bright greenish yellow (BGY) fluorescence of cottonseed (Gossypium hirsutum) that is associated with the fungus Aspergillus flavus and the accumulation of aflatoxins. Control of the pink bollworm by application of insecticides on a 5 or 7-day schedule resulted in a decrease in the BGY fluorescence of cottonseed and in the accumulation of aflatoxins. The reduced pink bollworm infestation did not insure that the present FDA guideline of 20 ppb for aflatoxins in cottonseed would be attained.

Key Words: Boll rot • Insecticides

2 Plant physiologist, USDX-ARS, Southeastern Fruit and Tree Nut Research Station, P. 0. Box 87, Byron GA 31008; Agricultural research technician-plants, USD-ARS, Imperial Valley Conservation Research Center, 4151 Hwy. 8G, Brawley, CA 92227; Agricultural research technician-plants, USDA-ARS, Western Cotton Research Laboratory, Phoenix, AZ 85040; Agricultural research technician-plants, USDA-XRS, Western Cotton Research Laboratory, Phoenix, AZ 85040.

Received for publication April 30, 1975.




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Copyright © 1976 by the Crop Science Society of America.