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鸭梨在我国水果生产中一直占有重要地位。但鸭梨属高感病树种,病害较多,其中尤以梨黑星病最为猖獗,它几乎每年都要在一些鸭梨产区暴发流行,如遇降水较多的年份,则为害更甚,轻者梨树大量落叶,果品的产量、质量下降;重者树体衰竭死亡,果园绝产绝收。
Pear has always occupied an important position in the fruit production in our country. However, pear is a highly susceptible tree species, more diseases, especially pear scab is the most rampant, it is almost every year in some pear outbreak epidemic, in case of precipitation in more years, the damage even worse, Light pear large deciduous, fruit production, quality decline; severe tree failure death, orchards absolutely yield.