一·梨枝瘿蛾梨枝瘿蛾 Metzneria sp.属麦蛾科为梨树重要害虫。陕西中部北部梨树受害严重。兹将在邠县地方观察结果缕叙于次。(一)为害情况以幼虫态为害于当年之发育枝,幼嫩的结果枝群及果台的木质部使受害部膨肿,导致病菌的传染;如为结果枝,则影 A · Pear moths moths Pear moth Metzneria sp. Is a moth family Pear important pests. Pear trees in the northern part of central Shaanxi have been seriously injured. This will be the result of observation in Lixian County thread second. (A) of the damage to the larvae state in the development of the year branches, young branches and fruiting branches of the Ministry of xylem swelling of the affected area, leading to the spread of germs;