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梨星毛虫是我县苹果、梨、槟沙果等果树上的主要害虫之一。多年来,使用剧毒农药如敌敌畏等防治,起了一定的作用。但由于用药倍数逐年加大,害虫抗药性逐渐增强,带来成本高、不安全、污染环境等严重问题。为了解决这一问题,我于1983年7月14日在中兵大队果园用新农药溴氰菊酯对星毛虫进行了防治效果的尝试,同时以80％的敌敌畏作对比,结果见表一。
Pear star caterpillar is my county apple, pear, Penaeus and other fruit trees one of the major pests. Over the years, the use of highly toxic pesticides such as dichlorvos and other prevention and treatment, played a certain role. However, as drug multiples increase year by year, insecticide resistance gradually increases, bringing about such serious problems as high cost, insecurity and environmental pollution. In order to solve this problem, on July 14, 1983, I used the new pesticide deltamethrin in the orchard of Brigade of the Chinese People’s Armed Police Force to try to control the coccidia. At the same time, I compared the control with 80% dichlorvos. Table 1 shows the results.