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大豆食心虫是辽宁省大豆生育后期的主要害虫,每年发生面积187～396万亩,全省平均自然虫食率6.8～22.8%,严重影响了产量和品质。由于食心虫的发生和为害年度间差异较大,如何能提前预测当年的虫食率,适时指导大面积的防治,则成为迫待解决的问题。我们搜集了1981—1990年共10年的全省大豆食心虫测报站、点的观测圃和一般大豆田自然不防治地块的虫食率平均值,和全
Soybean Moth is the main pest in the later stage of soybean growth in Liaoning Province, with an annual area of 187 ~ 396 mu and an average of 6.8 ~ 22.8% of natural pest burden in the province, seriously affecting the yield and quality. Because of the great difference between the occurrence and damage of moth worms in the year, how to predict the worm consumption rate in advance and guide large-scale prevention and control in a timely manner becomes an issue to be solved. We collected from 1981 to 1990 a total of 10 years of the province’s soybean heartbeat measurement station, the observation point of the general and general soybean field natural non-control of the average insect-feeding land, and the whole