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Application of nativo in control against cucumber powdery mildew

Plant Diseases and Pests 2013年第6期4卷 15-17页

作者： Guo Shibao Chen Junhua Shi Hongzhong Hu Kongfeng Xiong Jianwei Department of Agriculture Science Xinyang Agricultural and Forestry College Pollutionfree Plant Protection Engineering Research Center

[Objective]The paper was to explore application of nativo in control against cucumber powdery mildew.[Method]Taking ＂Zhenghuang 3＂ cucumber as the material,the effects of nativo on growth of cucumber at different periods were studied by soaking seeds and spraying treatment on stems and *** field efficacy trial against powdery mildew was also carried out to comprehensively evaluate control effect of nativo against powdery mildew.[Result]Seed soaking by nativo had good preventive effect on powdery mildew,while plant height,root length and increase rate of stem diameter were significantly lower than that of *** of plant height inhibition were 15.62% and 4.65% at seedling and flowering stage after spraying 60mg/L of nativo,respectively, which were significantly lower than that of *** control efficacies of nativo were 73.82%-84.26% in field trial,which was as good as that of hexaconazole but higher than that of Topsin-M.[Conclusion]nativo is safe to growth of cucumber,with good control effect on powdery *** can be used as an alternative fungicide to control cucumber powdery.

关键词： nativo safety cucumber powdery mildew control efficacy

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