梨实蜂又名钻蜂,俗称花钻子,仅危害梨。以幼虫在花萼基部组织里串食,继之蛀入果心中,受害幼果干枯、脱落,常造成梨树严重减产。梨实蜂1年发生1代,老熟幼虫在15厘米土层中结茧越冬,以土层10厘米深,距树干半径1米范围内最多。越冬幼虫在杏花现蕾期化蛹,4月15日前后出现成虫。成虫先集中杏、李、桃花上取食,但不产卵,梨花序分离时 Pear also known as a diamond bee, commonly known as flower drill, only endangered pears. The larvae in the calyx basal tissue in the string food, then eaten into the heart of fruit, victims of young fruit dry, fall off, often resulting in serious pear yield. Pear bee 1 year occurred 1 generation, mature larvae cocoon in the 15 cm soil overwinter to 10 cm deep soil, the radius of the trunk within 1 m range up. Overwintering larvae in the apricot budding pupa, April 15, adults. Adults first concentrated apricot, plum, peach on feeding, but do not spawn, pear inflorescence separation