Benefits of Bt cotton counterbalanced by secondary pests? Perceptions of ecological change in China

@article{Zhao2011BenefitsOB,
  title={Benefits of Bt cotton counterbalanced by secondary pests? Perceptions of ecological change in China},
  author={Jennifer H Zhao and P. P. S. Ho and Hossein Azadi},
  journal={Environmental Monitoring and Assessment},
  year={2011},
  volume={173},
  pages={985-994}
}
In the past, scientific research has predicted a decrease in the effectiveness of Bt cotton due to the rise of secondary and other sucking pests. It is suspected that once the primary pest is brought under control, secondary pests have a chance to emerge due to the lower pesticide applications in Bt cotton cultivars. Studies on this phenomenon are scarce. This article furnishes empirical evidence that farmers in China perceive a substantial increase in secondary pests after the introduction of… 
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