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西欧合剂是省农科院植保所提供的复配杀虫剂.1981年常熟县有11个公社的1560个生产队,用来防治棉虫18.5万亩次.其中防治棉蚜和红蜘蛛14.8万亩次,防治棉铃虫和红铃虫3.7万亩次,都取得显著效果.(一)治虫广谱,兼治多种棉虫.1981年6月15～25日的10天内,红蜘蛛和蚜虫骤然分别增长17倍和9倍,部分田出现红叶和卷叶.常规杀虫剂对红蜘蛛只有40～50%的防效,施药后4～5天就要重施.而使用西欧合剂杀虫作用快,残效长,施药后14天仍未见有活螨,施药后30天红叶的增长倍数比标准药剂1号减少29.69～97.19%(表1).
Western Europe mixture is the plant protection provided by the Provincial Academy of Agricultural Sciences compound pesticides .1981 Changshu County, 11 communes in 1560 production teams to control cotton insects 185,000 mu times, including control of cotton aphids and red spider 148,000 Acre, prevention and treatment of cotton bollworm and pink bollworm 37000 mus times, have achieved remarkable results. (A) broad-spectrum control, and cure a variety of cotton insects June 1981 15 to 25 days within 10 days, red spider and aphid suddenly Respectively, an increase of 17 times and 9 times, some fields appear red leaves and curly leaves.Common insecticides on the spider mite only 40 to 50% of the control effect, 4 to 5 days after the application should be re-applied .With the Western European mixture of insecticide Fast acting, long residual effect, no live mites were observed after 14 days of application, and the growth multiples of red leaves decreased by 29.69% to 97.19% (Table 1) than that of standard medicament no.