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我们公社改变以往单纯施用农药杀虫的做法,实行“预防为主,综合防治”,有效地控制了水稻病虫的危害,使“五虫”(三化螟、稻飞虱、粘虫、卷叶虫、稻蓟马等)和“三病”(稻瘟、白叶枯,纹枯等)的发生显著减少。1976年病虫发生面积比综防前的1972年减少了54.61％,三化螟为害率下降到0.01％以下,稻飞虱不造成危害,卷叶虫为害率下降到1％。化学农药总用量比综防前减少了85.4％,农药防治费每亩从1.13元减少到0.14元。综防区已发现的害虫捕食性天敌有50多种,寄生性天敌有60多种。综防前寄生率一般只有5.47％,现在达45.39％,高的达87.42％,有力地保障了
Our commune has changed the previous practice of simply applying pesticides to kill insects and practiced “prevention first and comprehensive prevention and control” to effectively control the damage caused by pests and diseases of rice so that the “five worms” (rice stem borer, planthopper, armyworm, Leaf worms, rice thrips, etc.) and “three diseases” (rice blast, white leaf withered, withered, etc.) were significantly reduced. In 1976, the pest occurrence area was reduced by 54.61% compared with the pre-prevention level in 1972, the damage rate of the yellow rice borer was reduced to less than 0.01%, the planthopper did not cause harm, and the leaf roller damage rate dropped to 1%. The total amount of chemical pesticides decreased by 85.4% compared with the pre-prevention, while the pesticide control fee decreased from 1.13 yuan to 0.14 yuan per mu. More than 50 species of pest predators have been found in integrated surveillance areas, and more than 60 species have been identified as parasitic natural enemies. Pre-outbreak parasitism generally only 5.47%, now up 45.39%, up to 87.42%, effectively protected