ESA Southeastern Branch Meeting Online Program

25 Influence of Bt corn on bollworm, Helicoverpa zea, survivorship in dual-gene cotton

Monday, March 4, 2013: 11:06 AM
Capitol Room (Hilton Baton Rouge)
Ben Von Kanel , Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Starkville, MS
Angus L. Catchot , Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Mississippi State, MS
Fred R. Musser , Biochemistry, Molecular Biology, Entomology, and Plant Pathology, Mississippi State University, Starkville, MS
Jeffrey Gore , Delta Research and Extension Center (DREC), Mississippi State University, Stoneville, MS
Ryan Jackson , Simru, USDA, Stoneville, MS
Third instar bollworms were collected from Genuity VT3 PRO and Non-Bt field corn and reared on artificial diet. Male and female pupae were segregated in order to arrange reciprocal (2) and back (2) crosses among individuals collected from both corn cultivars. Resulting neonates from each cross were subjected to a no-choice, tissue overlay test using Bollgard II cotton tissue. Two years of data have illustrated that progeny from bollworm individuals reared on VT3 PRO field corn have a higher LC50 on Bollgard II cotton.
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