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20%好年冬乳剂是美国FMC公司研制的一种新型杀虫剂。1991年在棉花苗蚜发生期间。用该药剂500倍、1000倍、2000倍稀释液,进行了田间小区药效试验,对照药剂为50%久效磷乳剂1500倍液,另设清水空白对照。试验地划分15个小区,小区面积40m~2,重复3次,随机区组排列。喷药前调查蚜虫基数,喷药后调查残留活蚜虫数。
20% Good Year winter emulsion is the United States FMC company developed a new type of insecticide. 1991 in cotton seedling aphid occurred. With the agent 500 times, 1000 times, 2000 times dilution, the field plot efficacy test, the control agent is 50% monocrotophos emulsion 1500 times the other set of fresh water blank control. Experimental area divided into 15 districts, the district area of 40m ~ 2, repeated 3 times, random block arrangement. Aphids were surveyed before spraying, and the number of surviving aphids was investigated after spraying.