Acta Entomologica Sinica (2006) 49, 792-799

Jian-Ying Guo, Gabor L. Lövei, Fang-Hao Wan and Zhao-Jun Han (2006)
[Survival and development of the wolf spider Alopecosa pulverulenta feeding on cotton aphid Aphis gossypii propagated on transgenic cotton]
Acta Entomologica Sinica 49 (5), 792-799
Abstract: Prey-mediated effects of genetically manipulated (GM) plants on polyphagous natural enemies were studied. Transgenic cotton cv. SGK321 (with inserted genes of Cry1Ac and CpTI) was used as the GM, the cotton aphid Aphis gossypii as the model pest, and the wolf spider Alopecosa pulverulenta (Clerck) as the generalist natural enemy. Aphids reared on GM vs. non-GM cotton were both poor quality food for A. pulverulenta spiderlings, in terms of growth and mortality. But the spiderlings showed higher survival and developed better when they were fed with aphids and fruit flies alternatively. When fed with aphids only, there were no differences in impact whether prey aphids were from GM or non-GM cotton, both in the limited feeding and unlimited feeding regimes. In the unlimited feeding experiment, the spiderlings showed higher survival when they were fed with aphids from GM cotton and fruit flies alternatively, compared with those fed with aphids from non-GM cotton and fruit flies alternatively, but body mass of the spiderlings did not differ between these two treatments. In the limited and mixed feeding experiment, there were no differences in impact whether prey aphids were from GM or non-GM cotton. The results indicate that transgenic cotton cv. SGK321 has no significant adverse effects on the survival and development of the wolf spider through non-target prey cotton aphid.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Chinese)
Database assignments for author(s): Zhaojun Han, Gábor L. Lövei, Fang Hao Wan

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
general biology - morphology - evolution
Research topic(s) for beneficials or antagonists:
environment/habitat manipulation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aphis gossypii	Cotton (Gossypium)
Alopecosa pulverulenta (predator)	Aphis gossypii	Cotton (Gossypium)
Bacillus thuringiensis genes in crops (entomopathogen)
Bacillus thuringiensis Cry1A-toxin (entomopathogen)