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50%多·锰锌可湿性粉剂500、600、700倍液室内对苹果轮纹病、炭疽病菌菌丝生长及孢子萌发的抑制效果均为100% ,对斑点落叶病菌菌丝生长及孢子萌发的抑制效果在70.21%以上优于单剂代森锰锌、多菌灵的效果 ;其对上述3种病菌的抑制中量 (EC50)小于单剂 ,共毒系数均>200,增效显著。田间对斑点落叶病和褐斑病的防效在81.12%以上 ,显著优于单剂 ,对轮纹病、炭疽病生长期及贮藏期的防治效果分别为97%～99.2%、70.9%～87.6%和87.1%～95.5%、50.5%～86.2% ,优于单剂代森锰锌的效果 ,优于或相当于多菌灵的效果。
The inhibitory effect of 50% Mn-Zn wettable powder 500, 600, 700 times liquid on apple ring disease, mycelium growth and spore germination of anthracnose were all 100%, and the mycelial growth and spore germination The inhibitory effect was better than that of single-agent mancozeb and carbendazim at more than 70.21%. The EC50 of these three pathogens was less than that of single-agent and the co-toxicity coefficient was more than 200 with significant synergistic effect. The control effect on spotted leaf spot and brown spot was over 81.12% in the field, which was significantly better than that of the single spot, and the control effects on ring rot disease, anthracnose growth period and storage period were 97% -99.2% and 70.9% -87.6 % And 87.1% ~ 95.5%, 50.5% ~ 86.2%, better than the single agent Mancozeb, better than or equivalent to the effect of carbendazim.