砀山酥梨驰名中外 ,近年我地发展 6万余ｈｍ2 ,但由梨黑星病的为害 ,常造成丰产不丰收。目前当地对梨黑星病的防治仍以药剂防治为主。常用的药剂有波尔多液、多菌灵、甲基硫菌灵、代森锰锌、退菌特、特谱唑等。由于长久大量使用 ,梨黑星病病菌已产生明显的抗药性 ,除特谱唑外 , Dangshan pear well-known at home and abroad, in recent years, I developed more than 60,000 hm2, but pears scab damage, often resulting in high yield does not harvest. At present, the prevention and treatment of pear scab is still dominated by pesticides. Commonly used agents Bordeaux mixture, carbendazim, thiophanate-methyl, mancozeb, antimicrobial special, etoposide and so on. Due to the long-term heavy use, pear scab pathogen has produced obvious resistance, in addition to the special spectrum of azole,