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Field evaluation the effect of two transgenic Bt maize events on predatory arthropods in the Huang-Huai-Hai summer maize-growing region of China.

Authors :
Huang, Jianrong
Li, Guoping
Liu, Bing
Gao, Yu
Wu, Kongming
Feng, Hongqiang
Source :
Environmental Entomology; Jun2024, Vol. 53 Issue 3, p398-405, 8p
Publication Year :
2024

Abstract

To illustrate the impact of genetically modified (GM) Bt maize on the natural enemy communities in the Huang-Huai-Hai summer maize-growing region in China, the abundance of 7 common predator taxa (Geocoris pallidipennis Costa, Harmonia axyridis (Pallas), lacewings, Orius sauteri (Poppius), Propylea japonica (Thunberg), spiders, and Staphylinidae) was quantitatively evaluated by comparing Bt-Cry1Ab DBN9936 and Bt-Cry1Ab/Cry2Aj Ruifeng 125 events to their near non-Bt isolines during the growing season from 2016 to 2019. A total of 10,302, 19,793, 13,536, and 5,672 individuals were observed during 4 years, and the abundance of each taxa on Bt maize varied between sample dates among those arthropod taxa. Shannon–Wiener diversity index of predator communities from 7 taxa showed very similar temporal dynamics and principal response curve analyses to examine community-level effects showed no significant differences in predator abundance in Bt maize compared with non-Bt maize. We conclude that the 2 Bt maize hybrids did not adversely affect the predator community in the Huang-Huai-Hai summer maize-growing region of China. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0046225X
Volume :
53
Issue :
3
Database :
Complementary Index
Journal :
Environmental Entomology
Publication Type :
Academic Journal
Accession number :
177947736
Full Text :
https://doi.org/10.1093/ee/nvae021