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Bt vs. Non-Bt UNR Cotton in N.E. Mississippi

J. T. Reed, D. Bao, C. S. Jackson and A. Cachot


 
ABSTRACT

An evaluation to help ascertain the fit of transgenic cotton containing the Bollgard gene in ultra-narrow row (UNR) cotton production was located at the Campbell Farm in N. E. Mississippi in 1998 and 1999. No-till plantings of Bt (Bollgard, Monsanto Agricultural Company, 800 N. Lindbergh Boulevard, St. Louis, MO 63167) and non-Bt cotton were scouted and treated based on average insect counts of all plots of the same variety. Insect population densities were light both years, and only heliothines received treatment. Non-Bt plots received an average of 2.5 applications of insecticide, and Bt plots averaged 1.0 application. Non-Bt plots maintained in the same field by the cooperator and scouted by a consultant in 2000 received 3 insecticide applications for heliothine management compared to no application on the Bollgard plots. Because of light heliothine population density, income after cost of insect control favored non-Bt cotton.





Reprinted from Proceedings of the 2001 Beltwide Cotton Conferences pp. 1131 - 1133
©National Cotton Council, Memphis TN

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Document last modified XXXXXX, XXX XX 2001