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我省现行的红铃虫防治标准为百株卵量20—30粒,因指标过严,生产实践上无法照办。为改进红铃虫的防治策略和防治标准,以提高防治效果和经济效益,我们于1982—1983年在中等生产水平的棉区(皮棉亩产150斤),采取群众性的简易查虫方法(当日百株卵量),进行了红铃虫不同防治标准大田对比试验。结果发明,在防治策略上应改为“一代免
The current prevention and cure standard of pink bollworm in our province is 100 eggs per 100-30 kernels. Due to too strict indexes, the production can not be practiced in practice. In order to improve the control strategy and standard of prevention and cure of the red bollworm in order to improve the control effect and economic benefit, we adopted a simple and simple method to check insects in the middle-level cotton production area (150 kg per mu) from 1982 to 1983 The same day a hundred eggs), conducted a different control standard pink bollworm contrast field trials. The results found that in the prevention and control strategy should be changed to "a generation of free