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为害情况梨小食心虫是对外检疫对象之一。主要以幼虫力害枝梢和果实。苹、桃新梢受害后尖端枯萎,故称折心虫、折梢虫,李幼果被害后大部脱落,梨果被害后,蛙孔四周逐渐附有虫粪和腐烂变黑,成一块较大的黑疤,因此又称为黑膏药,又害苹、梨果实,幼虫多在果心为害,使果心腐烂变质,不能食用。除为害苹、梨、桃、李外,还可为害杏、梅、樱桃等果树。
Harm pear Pest insects is one of the external quarantine objects. The main larvae to force shoots and fruits. Apple, peach after the tip of the new tip of withered, so said heartworm, Zhangtong insects, most of the fruit after the loss of Li Guo pears, pears killed, the frog hole surrounded by insects and decay gradually turn black, into a larger Black scar, therefore, also known as black plaster, but also harm apple, pear fruit, larvae more in the fruit heart damage, so that the fruit heart spoiled, can not eat. In addition to the damage of apple, pear, peach, plum, but also harmful apricot, plum, cherry and other fruit trees.