梨小食心虫(Grapholjtha molesta Bustk)又名东方蛀果蛾。兰州果农俗称钻心虫、杏蛆、黑膏药等,属鳞翅目小卷叶蛾科。是世界性果树害虫之一。国内遍布于辽宁、山东、河北、北京、河南、青海、宁夏、甘肃等省、区。我省分布也比较广,在陇东、陇南、中部、河西等地区均有发生。主要为害桃梢、杏和梨等果实。它以幼虫钻入果实内为害,初期造成果实早期脱落,继而蛀食果肉,受害严重的果实果肉全被吃光,果实内被虫粪充塞不能食用,影响了果品产量和质量,降低了商品率。除此之外,为害桃梢,使新梢的生长量和树冠的扩大受到抑制。 Grapholjtha molesta Bustk is also known as oriental moth. Lanzhou fruit farmers commonly known as worms, apricot maggots, black plaster, is a small Lepidoptera involucrata. One of the world’s fruit tree pests. The country is located in Liaoning, Shandong, Hebei, Beijing, Henan, Qinghai, Ningxia, Gansu and other provinces and autonomous regions. My province is also relatively wide distribution in Longdong, Longnan, central, Hexi and other regions have occurred. Mainly harmful peach, apricot and pear and other fruits. It larvae into fruit damage, the initial result of the early fruit fall off, and then eaten fruit pulp, seriously damaged fruit pulp was eaten, the fruit was stuffed with insect fecal can not eat, affecting the fruit yield and quality, reducing the commodity rate . In addition, harmful peach shoots, so that the growth of new shoots and canopy expansion is suppressed.