[Response of parasitic wasps of cotton bollworm to different cotton varieties with transgenic Bacillus thringienthsis genes].
The relationship between the parasitic wasp population number of cotton bollworm (Helicoverpa armigera) and the varieties of cotton was studied by releasing and collecting the eggs and larvae of cotton bollworm on transgenic and non-transgenic cottons. The research results from 2000 to 2003 showed that the parasitic rates of the eggs and larvae of cotton bollworm were notably lower in transgenic cotton field than in non-transgenic cotton field. At the same time, the effect of transgenic and non-transgenic cottons on the selection behavior of the parasitic wasp Microplitis mediatar of the larvae of cotton bollworm was studied by using "Y" olfactometer. The results showed that the selection response about the parasitic wasp Microplitis mediatar of cotton bollworm on non-transgenic cotton was prior to the transgenic cotton.
Yu
Yueshu
Y
Department of Plant Protection, Agricultural College, Yangzhou University, Yangzhou 225009, China.
Yang
Yizhong
Y
Lu
Yanhui
Y
D000818:Animals; D001413:Bacillus thuringiensis / Q000235:genetics*; D003368:Gossypium / Q000145:classification / Q000235:genetics / Q000254:growth & development*; D007300:Insect Control / Q000379:methods*; D030821:Plants, Genetically Modified; D014863:Wasps / Q000502:physiology*