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1983年棉花苗期,我们使用氯氰菊酯和杀虫脒1:10:4000倍液防治棉蚜和棉叶螨,5天后防治效果分别为94.6%和92.2%。比1:2000倍液1605的防治分别提高85.80%和80.9%;比氯氰菊酯1:4000倍液单用的防效分别提高41.4%和73.6%;比
In 1983 cotton seedling stage, we used cypermethrin and chlordimeform 1: 10: 4000 times to control cotton aphid and spider mite, and the control effect after 5 days was 94.6% and 92.2% respectively. Compared with 1: 2000, the control of 1605 increased by 85.80% and 80.9% respectively; the control effect of single use of 1: 4000 times of cypermethrin increased by 41.4% and 73.6% respectively;