TY - JOUR
T1 - Effect of Bacillus thuringiensis Cry3Bb1 protein on the feeding behavior and longevity of adult western corn rootworms (Coleoptera: Chrysomelidae)
AU - Nowatzki, Timothy M.
AU - Zhou, Xuguo
AU - Meinke, Lance J.
AU - Vaughn, T. Y.
AU - Siegfried, Blair D.
PY - 2006/6
Y1 - 2006/6
N2 - The first transgenic corn hybrids expressing the Bacillus thuringiensis (Bt) Cry3Bb1 protein to control corn rootworm (Diabrotica spp.) larvae were registered for commercial use in 2003. This study was conducted to investigate the effect of Cry3Bb1 protein in combination with a cucurbitacin bait on adult feeding and longevity of both organophosphate-resistant and -susceptible western corn rootworms, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae). In choice and no-choice tests, possible repellency to the Bt protein was quantified by comparing beetle consumption of cellulose disks treated with three concentrations of Bt in combination with a feeding stimulant (Invite EC) to disks treated with stimulant alone. A lethal-time assay also was conducted to examine survival of beetles exposed to Bt protein in their diet. Results from these assays indicate that adult rootworms are not significantly deterred by the presence of Cry3Bb1 on the treated discs and that ingestion of toxin does not adversely affect adult longevity.
AB - The first transgenic corn hybrids expressing the Bacillus thuringiensis (Bt) Cry3Bb1 protein to control corn rootworm (Diabrotica spp.) larvae were registered for commercial use in 2003. This study was conducted to investigate the effect of Cry3Bb1 protein in combination with a cucurbitacin bait on adult feeding and longevity of both organophosphate-resistant and -susceptible western corn rootworms, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae). In choice and no-choice tests, possible repellency to the Bt protein was quantified by comparing beetle consumption of cellulose disks treated with three concentrations of Bt in combination with a feeding stimulant (Invite EC) to disks treated with stimulant alone. A lethal-time assay also was conducted to examine survival of beetles exposed to Bt protein in their diet. Results from these assays indicate that adult rootworms are not significantly deterred by the presence of Cry3Bb1 on the treated discs and that ingestion of toxin does not adversely affect adult longevity.
KW - Behavior
KW - Cry3Bb1
KW - Survival
KW - Transgenics
KW - Western corn rootworm
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U2 - 10.1093/jee/99.3.927
DO - 10.1093/jee/99.3.927
M3 - Article
C2 - 16813332
AN - SCOPUS:33747432942
SN - 0022-0493
VL - 99
SP - 927
EP - 930
JO - Journal of Economic Entomology
JF - Journal of Economic Entomology
IS - 3
ER -