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General Information

Document type
  • Peer-reviewed journal article
GE organism
  • cotton
GE trait
  • insect resistance
Country
  • China

Results

Safety for environment
  • no effect

Effects of Bt-toxin Cry1Ac on Propylaea japonica Thunberg (Col., Coccinellidae) by feeding on Bt-treated Bt-resistant Helicoverpa armigera (Hübner) (Lep., Noctuidae) larvae

Zhang SY, Li DM, Cui J, Xie BY
Journal of Applied Entomology. 2006 May. 130(4):206–212

Link to full text (journal may charge for access)

DOI: 10.1111/j.1439-0418.2006.01049.x

Abstract

Propylaea japonica is an important predatory insect of common cotton pests. To assess the ecological effects of transgenic Bt cotton, expressing Cry1Ac toxin, on this predator, we examined the life history parameters of P. japonica for two generations by feeding them with Bt-resistant Helicoverpa armigera. After ingesting Bt-treated Bt-resistant H. armigera larvae in the third and fourth instar, the body mass and body length of adult P. japonica decreased, a combined effect of poor prey quality and Cry1Ac Bt-toxin may account for these effects. However, larval survivorship and development in these two instars, pupal mortality, fecundity and adult longevity of P. japonica were not affected in both the generations. These results suggest that ingesting Bt-toxin Cry1Ac-treated pests in advanced larval stage might have no significant effect on the fitness of predator P. japonica

Keywords

bionomics; Bt cotton; cotton bollworm; development; fitness; predator

Funding

Funding source
  • National Basic Research Program
  • Key Technologies Research and Development Programme
Funding country
  • China
Funding type
  • government

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Cite this study

MLA

Zhang SY, Li DM, Cui J, Xie BY. "Effects of Bt-toxin Cry1Ac on Propylaea japonica Thunberg (Col., Coccinellidae) by feeding on Bt-treated Bt-resistant Helicoverpa armigera (Hübner) (Lep., Noctuidae) larvae." Journal of Applied Entomology 130.4 (2006): 206–212. Web. 13 Dec. 2018.

APA

Zhang SY, Li DM, Cui J, Xie BY. (2006). Effects of Bt-toxin Cry1Ac on Propylaea japonica Thunberg (Col., Coccinellidae) by feeding on Bt-treated Bt-resistant Helicoverpa armigera (Hübner) (Lep., Noctuidae) larvae. Journal of Applied Entomology, 130(4), 206–212. doi:10.1111/j.1439-0418.2006.01049.x

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