Dispersal of Insecticide Resistance in

Helicoverpa zea & Heliothis virescens

Entomological Society of America
Informal Conference 11
NCR-148 and WCC-060 Workshop

Tuesday evening December 14, 1999
7:00PM - 11:00 PM
Hyatt Regency on Peachtree, Atlanta, Georgia
Centennial Ballroom IV, (Atrium Tower, Ballroom Level).

Abstract: Our goal is to understand the spread of pesticide resistance in arthropods and other pests of economic impact. Recently, Helicoverpa zea and Heliothis virescens in cotton have been found to be resistant to pyrethroid insecticides in the southeast and to have the potential to develop resistance to Bacillus thuringiensis. Considering these insects as models, this workshop will provide for synergistic interaction between experts in the dispersal and migration of insects with experts in the science and management of pesticide resistance. Topics will include an overview of migration in H. zea, resistant sodium ion channel alleles in H. virescens, computer models of dispersal, cryogenic archives for future analysis of resistance alleles, global positioning of resistant populations and contrasts with spread of resistant traits in weeds.

7:00 PM	Introduction to workshop	Casey Hoy, Ohio State University, OARDC
7:05 PM	Atmospheric Dispersal of Helicoverpa zea (Boddie): Implications for Resistance Management.	John Westbrook, USDA ARS, Texas A&M
7:25 PM	DNA evidence; the spread of specific alleles.	Yoonseong Park, University of California, Riverside
7:45 PM	Separate audience into working groups A, B and C each with Co-moderators:
	A: Map coordinates to locate collections of resistant and susceptible H. zea for a research database.	Rufus Issacs, Michigan State University, & Yoonseong Park, University of California, Riverside
	B: Cryobank- organized collection and archive of specimens.	Tom Brown, Clemson University & Kevin A. Shufran, USDA
	C: Simulating dispersal in models of resistance.	Mike Caprio, Mississippi State University & Casey Hoy, Ohio State University, OARDC
9:00 PM	Coffee break	(Co-moderators of A, B and C meet to write preliminary recommendations)
9:20 PM	Green fluorescent protein as a marker to measure the movement of Bt based resistnace genes into natural populations of weedy Brassica	Charles Neal Stewart, Jr., Department of Biology, University of North Carolina, Greensboro, NC
9:40 PM	Discussion	Panel of Moderators and Speakers
	Recommendations and wrap-up	Tom Brown, Clemson University

RESULTS...

Contact:

Thomas M. Brown
Department of Entomology
114 Long Hall
Clemson University
Clemson, SC 29634-0365
tel: (864) 656-5038
Fax: (864) 656-5065