梨黑星病菌对不同杀菌剂的敏感度变异

来源 :中国植物保护学会2011年学术年会 | 被引量 : 0次 | 上传用户:Melanzpl2
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  黑星病是梨树上的主要病害,常为害叶片、叶柄、嫩枝及果实;在病害流行年份,病叶率和病果率可达50%以上,严重影响梨的产量和品质,目前,生产上主要依靠化学药剂进行防治。但化学药剂的长期单一使用,致使病原菌对杀菌剂的抗药性问题日趋严重,目前,已经出现了田间病菌对不同药剂产生抗药性的相关报道。因此,进行病菌抗药性检测、了解病菌对常用杀菌剂的敏感度变异对制定合理的田间防治策略具有十分重要的意义。
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