Record Details

Bt cotton area contraction drives regional pest resurgence, crop loss, and pesticide use

CGSpace

View Archive Info
 
 
Field Value
 
Title Bt cotton area contraction drives regional pest resurgence, crop loss, and pesticide use
 
Creator Lu, Yanhui
Wyckhuys, Kris A.G.
Yang, Long
Liu, Bing
Zeng, Juan
Jiang, Yuying
Desneux, Nicolas
Zhang, Wei
Wu, Kongming
 
Subject bacillus thuringiensis
cotton
bollworm
pest control
pests
pesticides
crop losses
biotechnology
 
Description Genetically-modified crops expressing Bacillus thuringiensis (Bt) proteins have been widely cultivated, permitting an effective non-chemical control of major agricultural pests. While their establishment can enable an area-wide suppression of polyphagous herbivores, no information is available on the impact of Bt crop abandonment in entire landscape matrices. Here, we detail a resurgence of the cosmopolitan bollworm Helicoverpa armigera following a contraction of Bt cotton area in dynamic agro-landscapes over 2007–2019 in North China Plain. An 80% reduction in Bt cotton was mirrored in a 1.9-fold increase of ambient H. armigera population levels, culminating in 1.5–2.1-fold higher yield loss and a 2.0–4.4-fold increase in pesticide use frequency in non-Bt crops (i.e. maize, peanut, soybean). Our work unveils the fate of herbivorous insect populations following a progressive dis-use of insecticidal crop cultivars, and hints at how tactically deployed Bt crops could be paired with agro-ecological measures to mitigate the environmental footprint of crop production.
 
Date 2022-02
2023-01-22T18:18:55Z
2023-01-22T18:18:55Z
 
Type Journal Article
 
Identifier Lu, Yanhui; Wyckhuys, Kris A.G.; Yang, Long; Liu, Bing; Zeng, Juan; Jiang, Yuying; Desneux, Nicolas; Zhang, Wei; and Wu, Kongming. 2022. Bt cotton area contraction drives regional pest resurgence, crop loss and pesticide use. Plant Biotechnology Journal 20(2): 390-398. https://doi.org/10.1111/pbi.13721
1467-7644
https://hdl.handle.net/10568/127781
https://doi.org/10.1111/pbi.13721
 
Language en
 
Rights CC-BY-NC-ND-4.0
Open Access
 
Publisher Wiley
 
Source Plant Biotechnology Journal