桃白小卷蛾和梨食芽蛾辨正

澄清了两种害虫：梨食芽蛾一年发生1代，以小幼虫在山植树翘皮下越冬，早春出蛰为害芽、花蕾、嫩梢及叶片，老熟后在花序或卷叶中化肾；桃白小卷蛾一年发生两代，以老熟幼虫在地面缀连叶片做茧越冬，春季在茧中化蛹，其幼虫只为害果实。两者幼虫和成虫可根据形态特征鉴别。

Differentiating pear bud moth, Spilonota pyrusicola Liu et Liu from larger apple fruit moth, Spilonota albicana Motschulsky

Pear bud moth had one generation a year. Tbe young larvae overwintered under the dead barks. They fed on buds, young tips and leaves in early spring after hibernation. Pupation took place within both the inflorescence and rolled leaves after maturation. Spilonota albicana Motschulsky had two generations a year. The mature larvae Qverwintered in the cocoons made of leaves. Pupation occurred in spring. The larvae fed only on fruits. The larvae and adults of these two speciet could be differentiated by their morphological characters.