梨实蜂是梨幼果的害虫。在河北省各梨区均有发生,为害严重。1953年以前兴隆、青龙及昌黎等地都曾大量发生。兴隆快活林一带梨园由于该虫为害,曾造成连续十余年不挂果,因此群众刨毁许多梨树;1953年后采取措施进行防治后,目前才基本消灭。在中南部定县、晋县、束鹿、深县、赵县、交河、河间等地梨区梨实蜂仍为当前重要害虫。据1959年在晋县河头村、西张口等村梨 Pear is a pear pear fruit pests. Pear in Hebei Province have occurred, serious damage. Before 1953, Xinglong, Qinglong and Changli had occurred in large numbers. Because of the pest damage caused by the pests in Xinglonglong Merrywood Forest, many people did not hang fruit for more than ten consecutive years. Therefore, the masses planed many pear trees; and after the measures were taken to prevent and control them after 1953, they were basically eliminated at present. In central and southern counties, Jinxian, Shulu, Shenxian, Zhao County, Jiaohe, Hejian and other areas pear pear is still the current major pests. According to 1959 in Jinhe River Village, West Village mouth pear mouth