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Yield, Insecticide Use, and Profit Changes from Adoption of Bt Cotton in the Southeast

G.A. Carlson, Michele C. Marra and Bryan J. Hubbell


Southeastern cotton growers were surveyed in the winter of 1996-97 to obtain information on the impacts of Bt cotton in the first year. Adopters of Bt cotton in 1996 experienced a 11.4% yield improvement on their Bt acres compared to their conventional cotton acres. Insecticide applications per season were 72% lower on their Bt cotton relative to their conventional cotton acres. There was also a significant reduction in total insecticides applied, with a more than proportional reduction in synthetic pyrethroids on their Bt acres. Additional profit from Bt cotton adoption averaged $142 per hectare ($51 per acre), or a 155% return on the seed investment.

Reprinted from Proceedings of the 1998 Beltwide Cotton Conferences pp. 973 - 974
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998