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苹果轮纹病是一种重要病害,使用多菌灵和甲基硫菌灵进行药剂防治一直是其主要控制措施之一。国内外不断有植物病原菌对多菌灵等杀菌剂产生抗性的报道,苹果产地也不断反映多菌灵、甲基硫菌灵对苹果轮纹病的防效下降,但对苹果轮纹病菌Botryosphaeria berengeriana f.sp.piricola(Nose)Koganezawa et Sakuma的抗性菌株在国内的地理分布及抗性水平并不清楚。为此,作者于1999～2000年对我国重要苹果产区的苹果
Apple ring rot disease is an important disease. The use of carbendazim and thiophanate-methyl for the control of pesticides has always been one of the major control measures. There are reports of plant pathogenic bacteria at home and abroad are resistant to carbendazim and other fungicides. The producing areas of apple also continuously reflect the decrease of the control effect of carbendazim and thiophanate-methyl against apple ring disease. However, Botryosphaeria The geographical distribution and resistance level of the resistant strains of berengeriana f. sp. piricola (Nose) Koganezawa et Sakuma in the country are not clear. To this end, the author in 1999 and 2000 on China’s major apple producing areas of apple