今年我们去娄烦县搞技术培训,果农反映他们十几年的梨树不结果。我们到梨园观察,算盘珠似的糖葫芦串挂满树枝,树势衰弱,这是梨瘤蛾为害造成的。 梨瘤蛾俗名糖葫芦虫,只为害梨树,分布很广。以幼虫蛀食新梢,新梢被害后长成疙瘩状虫瘿,几个虫瘿连在一起很像糖葫芦串。 This year we go to Loufan County to engage in technical training, fruit farmers reflect their pear more than 10 years of no result. We observe pear, abalone-like candied hamstring hanging branches, tree fragility, which is caused by the pear tumor moth damage. Commonly known as sweet potato gourd moth guinea worm, only for pear tree, a very wide distribution. To eat larvae new shoots, new shoots grow into lumps like insects 瘿, several insects 瘿 together like a lotus gourd string.