Evaluation of the control efficiency of nanofungicides in the field on apple leaf diseases
In order to clarify the control effect of nanofungicides on two apple leaf diseases,the control effects of several nanofungicides and the same conventional fungicides with the same active ingredient content on apple scab and apple alternaria leaf spot were systematically evaluated by field experiments.The results showed that the nanofungicide 15%benzopyrazole ester ME had the best control effect on apple scab,and the control efficiency was 83.58%and 59.37%on 15 and 30 days after the 7th treatment,respectively,which was higher than that of conventional fungicides.The nanofungicide 7%polyanti-tebuconazole ME had the highest control effect on apple alternaria leaf spot,and the control efficiency was 97.07%and 74.56%on 15 and 30 days after the 7th treatment,respectively,which was higher than that of conventional fungicides.Therefore,when the pesticides were applied with the same active ingredient content,the control effect of nanofungicides on the two apple leaf diseases was generally better than that of conventional fungicides,and they could be popularized and used in production.
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