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Vol. 45 No. 1, 2006
Development and Reproduction of Propylaea japonica (Coleoptera:
Coccinellidae) Raised on Aphis
gossypii (Homoptera: Aphididae) Fed Transgenic Cotton
Sanrong
Zhu1, Jianwei Su1, Xianghui Liu1, Li Du1, Erdal N. Yardim2, and Feng
Ge1,*
1State
Key Laboratory of Integrated Management of Pest Insects and Rodents,
Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, China
2Department of Entomology, Faculty of Agriculture,
Yuzuncu Yil University, Van 65080, Turkey
Sanrong
Zhu, Jianwei Su, Xianghui Liu, Li Du, Erdal N. Yardim, and Feng Ge
(2006) A
laboratory experiment was designed to evaluate the effects of
transgenic cotton containing Bacillus
thuringiensis (Berliner) Cry1Ac toxin on the survival,
development, and fecundity of a predatory ladybeetle, Propylaea japonica (Thunberg),
through a food chain using cotton aphid, Aphis gossypii
Glover as an herbivorous prey. No significant differences were observed
in total survival from hatching to adult, or in larval and pupal
durations of P. japonica
supplied with aphids fed on either transgenic or non-transgenic cotton.
Similarly, no significant differences in longevity, reproduction,
weight, or fatty acid contents of adult beetles were detected. Our
results suggest that this type of transgenic cotton might have little
effect on the survival, development, and fecundity of P. japonica through this food chain.
Key words: Development,
Fecundity, Bt, Propylaea japonica
(Thunberg), Aphis gossypi Glover.
*Correspondence: Tel and Fax: 86-10-62548093. E-mail:
gef@panda.ioz.ac.cn
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