大豆是主要油料作物,分布遍及全国,但在生长发育过程中,常遭受害虫的为害,其中天蛾对大豆的为害相当严重,特别是淮河流域的河南、安徽、江苏以及山东省的大豆产区。据记载山东省的大豆产区豆天蛾为害大豆,平均减产20—30%,严重地块可达60%,1954年郓城县约有五万亩大豆受害,平均减产50%, Soybean is the main oilseed crop, distributed throughout the country, but in the growth and development process, often suffer from pests, of which the moth damage to soybeans is quite serious, especially in the Huaihe River in Henan, Anhui, Jiangsu and Shandong Province soybean production . It is reported that soybeans moths in soybean producing areas in Shandong Province damaged soybean by 20-30% on average and up to 60% in severe areas. In 1954, about 50,000 mu of soybeans were damaged in Tancheng County, with an average reduction of 50%