Control efficacy in field of 2 sets of pesticides combinations against peach bacterial shot hole
To study the field control effect of 7 pesticides such as mancozeb 80％WP and chloroisobromine cyanuric acid 50％WP on peach bacterial shot hole.Peach trees were taken as the research object,and no pesticide was applied as control(CK).Two groups of pesticides combinations were designed for treatment zone I(mancozincb 80％WP 700 times+chloroisobromine cyanuric acid 50％WP 1 500 times+mesocin 3％WP 600 times+thiazolium zinc 30％SC 750 times)and treatment zone II(copper quinoline 33.5％SC 1 500 times+tiametrone 3％ME 1 500 times+tetracycin 0.3％AS 500 times+thiazolium zinc 30％SC 750 times)to carry out field control tests.The rate of diseased leaf,disease index,prevention effect of diseased leaf,and diseased finger were determined,and the safety was observed.The results showed that the rates of diseased leaves in treatment area Ⅰ and Ⅱ were 3.41％and 4.49％,respectively,and the disease index were 0.51 and 0.91,the control effects of diseased leaves were 71.75％and 62.80％,and the control effects of diseased fingers were 83.28％and 70.16％,respectively.The results indicated that the alternate application of chemical agents had a good effect on the prevention and control of peach bacterial shot hole.This study provides a reference for the prevention and treatment of peach bacterial shot hole.
peach bacterial shot holecontrol efficacy in fieldpesticides combinationgreen prevention and control
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