4种杀菌剂防治黄瓜霜霉病试验研究

研究4种杀菌剂对黄瓜霜霉病的药效,结果表明:第2次药后14d,10%银法利600倍液、800倍液的防效分别为86.05%和84.77%,69%安克锰锌1000倍液和72%杜邦克露600倍液的防效分别为77.94%和74.73%,对照药剂甲霜灵防效仅为64.73%。建议生产上防治黄瓜霜霉病时,可将银法利与安克锰锌、杜邦克露等药剂轮换使用,以延缓霜霉病菌抗药性的产生。

Control Research of 4 Bactericides on Cucumber Downy Mildew

Control effect of 4 bactericides on cucumber downy mildew was studied.The results showed that 14 day after the second pesticide application,10% Yinfali 600 and 800 times had control efficacy of 86.05% and 84.77% on cucumber downy mildew,respectively,and 69% Ankemengxin 1 000 times and 72%Dubangkelu 600 times had control efficacy of 77.94% and 74.73%,as the control metalaxyl only 64.73%.It was suggested that Yinfali,Ankemengxin and Dubangkelu should be used alternately to reduce the drug resistance of downy ...