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为减缓害虫对吡虫啉的抗性,扩大农药杀虫普,提高药效,进行了吡虫啉和溴虫腈的复配悬浮剂研究。采用单一筛选的方法结合热贮后指标的检测,筛选润湿分散剂和增稠剂;采用冷热贮及破坏性试验来验证配方的稳定性。20%吡虫啉.溴虫腈SC的最佳配方为:10%吡虫啉原药、10%溴虫腈原药、2%7227-A、0.5%BC/10、0.2%黄原胶、0.5%硅酸镁铝、5%尿素、0.5%有机硅消泡剂630和0.1%防腐剂,去离子水补足100%。所得悬浮剂通过检测得出产品各项指标均符合悬浮剂国家标准,所用方法可行。
In order to reduce the resistance of pests to imidacloprid, expand pesticides and improve the efficacy of insecticides, the imidacloprid and chlorfenapyr were studied. A single screening method combined with the detection of thermal storage indicators, screening wetting and dispersing agent and thickener; cold storage and destructive test to verify the stability of the formula. 20% Imidacloprid. The optimum formulation of chlorfenapyr SC was: 10% imidacloprid, 10% chlorfenapyr, 2% 7227-A, 0.5% BC / 10, 0.2% xanthan, 0.5% Magnesium aluminum, 5% urea, 0.5% silicone defoamer 630 and 0.1% preservative, deionized water to make up 100%. Through the test, the obtained suspending agent got the conclusion that all indexes of the product accord with the national standard of suspending agent, and the method is feasible.