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EPA Regulation of Transgenic Pesticidal Crops and Insectresistance Management for B.t. Cotton

Sharlene R. Matten, Ph.D.


 
ABSTRACT

The U.S. Environmental Protection Agency (EPA) regulates transgenic pesticidal crops. EPA believes that scientifically-sound long-term insect resistance management strategies are essential to the survival of Bacillus thuringiensis (B.t.) plant-pesticides, protection of B.t. microbial pesticides, and reduction in the risks from the use of pesticides. EPA imposed mandatory insect resistance management requirements for B.t. cotton. Two structured refuge requirements were imposed: 4% unsprayed or 20% sprayed Work is underway to reevaluate all of the existing IRM plans for B.t. crops (B.t. corn and B.t. cotton) prior to their 2001 expiration dates. The Cry1Ac cotton registration expires January 1, 2001. EPA will have a public process in 2000 to reevaluate the current IRM plans prior to making regulatory decisions for the 2001 growing season. EPA will continue to work with stakeholders from industry, academia, trade organizations, public interest groups, and government agencies to address long-term insect resistance management for B.t. crops.



Reprinted from Proceedings of the 2000 Beltwide Cotton Conferences pp. 71 - 76
©National Cotton Council, Memphis TN

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Document last modified Saturday, Jun 17 2000