2013•Anhui nongye kexueRequires access
Comparison on Control Efficacy of Seven Fungicides against Cucumber Downy Mildew of Protective Area
Su Jiankun
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Abstract
[Objective] The aim was to evaluate the control Efficacies of seven fungicides against cucumber downy mildew of protective area.[Method]The control efficacies of seven fungicides against cucumber downy mildew in Lixiahe Region of Jiangsu Province were tested through field experiment.[Result] The seven fungicides all had certain control effect on cucumber downy mildew,among them 72% Cymoxanil.mancozeb WP and 36% Cymoxanil.chlorothalonil WP had the highest and longest control efficacy which were 90.03% and 92.07% after five days and 75.31% and 77.63% after ten days,respectively.Next came Sandofan.mancozeb and Iprovalicarb.[Conclusion]Cymoxanil.chlorothalonil and Cymoxanil.mancozeb might be the best choice for cucumber downy mildew control in the field in Lixiahe Region of Jiangsu Province,meanwhile Sandofan.mancozeb,Iprovalicarb,Chlorothalonil,Metalaxyl and Mancozeb could be applied together so as to control resistance.