Screening of Control Agents for Cucumber Bacterial Angular Leaf Spot and Powdery Mildew in Protected Areas
In order to screen out the control agents of cucumber bacterial angular leaf spot and powdery mildew in protected field,three kinds of agents were selected to test these two diseases,and the efficacy inves-tigation was carried out respectively.The results showed that 100 million CFU/g Bacillus subtilis and 33.5％quinoline copper suspension had good control effect on cucumber bacterial angular leaf spot,and the control effects after three times of application were 97.49％and 96.16％,respectively.It was safe and harmless to cucumber,and could be used as a control agent for cucumber bacterial angular leaf spot in protected are-as.Triadimefon had the best control effect on cucumber powdery mildew,up to 92.37％,followed by amistar,which was 83.75％.Both agents did not produce phytotoxicity.In actual production,triadimefon and amistar could be used alternately.
NETL
NSTL
万方数据
