Synergism of the Mixtures of Azoxystrobin and Dimethomorph to Pseudoperonospora cubensis
Zhang Rui-ru
Abstract
Zhang Rui-ru
Abstract
[Aims]The study aims to delay the pesticide resistance of azoxystrobin and dimethomorph.[Methods]By using spore suspension spray inoculation method,the indoor toxicity of azoxystrobin,dimethomorph and their mixtures were tested against cucumber downy mildew.[Results]The results showed that the mixtures of azoxystrobin with dimethomorph at ratio of 3 to 1 among the 5 mixed preparations showed the best synergism.[Conclusions]This result can be used as the guidance of field experiment.
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[Aims]The study aims to delay the pesticide resistance of azoxystrobin and dimethomorph.[Methods]By using spore suspension spray inoculation method,the indoor toxicity of azoxystrobin,dimethomorph and their mixtures were tested against cucumber downy mildew.[Results]The results showed that the mixtures of azoxystrobin with dimethomorph at ratio of 3 to 1 among the 5 mixed preparations showed the best synergism.[Conclusions]This result can be used as the guidance of field experiment.
Key concepts: Azoxystrobin, Pseudoperonospora cubensis, Downy mildew, Fungicide, Horticulture, Agronomy, Biology