Ryan W. Kurtz, Syngenta Biotechnology, Inc., Box 12257, 3054 Cornwallis Rd., Research Triangle Park, NC 27709-2257, Mike Caprio, Mississippi State University, Deptartment of Entomology and Plant Pathology, Starkville, MS 39762, and Alan McCaffery, Syngenta, Jealotts Hill Int. Research Cen, Bracknell, Berkshire RG42 6EY, United Kingdom.
Syngenta is developing pyramided transgenic VipCot™ cotton varieties that produce two insecticidal proteins derived from Bacillus thuringiensis, Vip3A and Cry1Ab. Both proteins are highly effective against Helicoverpa zea, cotton bollworm (CBW) and Heliothis virescens, tobacco budworm (TBW). To investigate the effect VipCot™ cotton varieties will have in delaying resistance development in these pests to each component protein, Syngenta employed the expertise of Dr. Michael Caprio to perform risk assessment computer modeling. The results of these simulations and implications for resistance management will be discussed.