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为了减少化防面积,保护和利用自然天敌,提高生态效益。1984～1986年,选用安徽省化工研究所研制的3%乙基硫环磷颗粒剂进行了试验示范。
In order to reduce the area of prevention and control, protect and utilize natural enemies and enhance ecological benefits. From 1984 to 1986, 3% ethylthiophosphate granules developed by Anhui Institute of Chemical Industry were selected for experiment and demonstration.