李实蜂以幼虫蛀食李果核仁 ,导致李树早期落果并大幅度减产甚至绝产 ,李实蜂成为近年来李树最主要的害虫。1　发生规律　李实蜂一年发生 1代 ,以老熟幼虫在土缝或土块下结茧越冬。翌春李树开花时羽化成虫 ,成虫喜于中午气温高时在树冠内外成群飞舞 ,早晚和阴雨天静伏于花中或花 Li Shi bee larvae eaten fruit berries, leading to early plum tree drop and a substantial reduction or even absolute production, Li Shibei Li tree in recent years as the most important pests. 1 occurs Li Shi bee a generation a year, with mature larvae in the soil seam or clods cocoon wintering. Spring plum next spring blossom adult, adult hi at noon high temperature inside and outside the canopy flying, sooner or later, and rainy days are quiet in the flowers or flowers