棉 花 学 报 Cotton Science 2005，17(1)：37-41
Effects of Transgenic Cry1Ac Plus CpTI Cotton on Development of Main Parasitoids in Laboratory Abstract: Effects of transgenic Cry1Ac plus CpTI cotton (double gene cotton) and transgenic Bt cotton (Bt cotton) on the development of main parasitoids Lysiphlebia japonica Ashmead, Microplitis sp and Campoletis chlorideae Uchida were studied in the laboratory. The results showed that difference of the moulting rate of the nature population Lysiphlebia japonica Ashmead from the double gene cotton field and Bt cotton field were not obvious comparing with that of the conventional cotton, the adult weight from double gene cotton was heavier than that of the Bt cotton, the difference of the adult weight between the double gene cotton and the conventional cotton, the Bt cotton and the conventional cotton were neither obvious. The difference of moulting rate, development duration and adult weight of the Lysiphlebia japonica Ashmead from the conventional cotton field to the aphids fed with the double gene cotton, Bt cotton and conventional cotton were both not obvious, the difference of parasited number between the treatment of the Bt cotton and conventional was obvious, but the difference of paradited number between the Bt cotton and double gene cotton, the double gene cotton and conventional cotton were all not obvious. The difference of parasited rate and moulting rate of the Lysiphlebia japonica Ashmead from the Bt cotton field to the aphids fed with the conventional cotton and the Bt cotton respectively were not obvious, comparing with the treatment of conventional cotton itself. The difference of parasited rate and moulting rate of the Lysiphlebia japonica Ashmead from the double gene cotton to the aphids fed with conventional cotton were not obvious, comparing with the treatment of conventional cotton itself. But the parasited rate of Lysiphlebia japonica Ashmead from the double gene cotton field to the aphids fed with the double gene cotton decreased, the moulting rate increased obviously, so the effect of the double gene cotton on parasiting ability of Lysiphlebia japonica Ashmead are little.
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