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乙基硫环磷,化学名称为2-(二乙氧基磷酰亚胺基)-1,3-二硫戊环。安徽省化工研究所1983年研究成功,并制成颗粒剂。经三年室内和田间药效试验,证明其杀虫率高,广谱性好,持效期长,是一种值得推广的农药新品种。现将对棉蚜和棉叶螨试验结果总结如下。一、试验方法和结果 1.防治棉蚜试验盆栽试验用大小相同的盆钵,穴施一定量颗粒剂,覆少量土,再播入催芽棉籽,每处理重复三次,出苗后按不同时期接蚜虫,分别罩上网罩,24小时检查死虫数,计数虫口减退率,确定持效期长短。(表1)。
Ethylthionophosphorus, chemical name 2- (diethoxyphosphorylimino) -1,3-dithiolane. Anhui Institute of Chemical Industry 1983 successful research, and made into granules. After three years of indoor and field efficacy tests, it has been proved that it has a high insecticidal rate, good broad spectrum and long duration. It is a new pesticide worth promoting. The test results on cotton aphids and cotton spider mites will now be summarized as follows. First, the test methods and results 1. Prevention and treatment of cotton aphid pot experiment with the same size pots, points of a certain amount of granules, covering a small amount of soil, and then sowing germination cottonseed, each treatment repeated three times, at different times after emergence of aphids , Were covered with a mask, 24 hours to check the number of dead insects, counting the rate of decline of population to determine the duration of persistence. (Table 1).