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大豆食心虫是我乡大豆的重要虫害,对大豆产量、质量影响极大。1983年大面积推广应用敌敌畏熏杀大豆食心虫,防治面积为4653亩,占大豆种植面积的80.4％。通过防治田和无防治田块的七个大队的多点调查结果证明,全乡防效在75.26—87.6％,平均防效为81.4％。我们调查了全乡五个小队的防治田块,百荚残虫量平均0.8头,无防治田是3.7头;防治田的虫食率2.9％,无防治
Soybean Moth is an important pest of soybean in our country, which greatly affects soybean yield and quality. In 1983 a large area to promote the application of dichlorvos smoked soy bean worms, prevention and control area of 4653 acres, accounting for 80.4% of soybean acreage. The result of the multi-point investigation of the seven brigades that controlled the fields and non-control plots showed that the anti-efficiency effect of the township was 75.26-87.6% with an average control effect of 81.4%. We investigated the township five teams control plots, the average number of pods per hectare 0.8, non-control field is 3.7; control of the field of insect-feeding rate of 2.9%, no control