Acta Entomologica Sinica (2005) 48, 42-47

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Yao-Yu Bai, Ming-Xing Jiang and Jia-An Cheng (2005)
[Impacts of transgenic cry1Ab rice on two collembolan species and predation of Microvelia horvathi (Hemiptera: Veliidae)]
Acta Entomologica Sinica 48 (1), 42-47
Abstract: Two collembolan species were collected from paddy fields and identified as Entomobrya griseoolivata (Packard) and Bourletiella christianseni Banks. Population densities of E. griseoolivata in Bt rice field were significantly higher than that in the control, the XS11 rice field. Cry1Ab insecticidal protein was detected in the E. griseoolivata fed with Bt rice (KMD1 and KMD2) litter in the laboratory. Results from the laboratory studies on predation and functional responses by Microvelia horvathi Lundblad adults showed that all the functional responses of the predator to E. griseoolivata fed with the litter of either Bt rice or the control rice XS11, whether by single or three M. horvathi adult(s), followed the Holling type response. The daily predation, instantaneous attacks constant and handling times of them were not significantly different.
(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): Jia-An Cheng

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
environment/habitat manipulation

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Bacillus thuringiensis genes in crops (entomopathogen)
Microvelia horvathi (predator)
Bacillus thuringiensis Cry1A-toxin (entomopathogen)