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白翅叶蝉Thaia subrufa(Motschulsky)在我县近年来已上升为水稻的主要害虫之一,尤其在山区、近山区发生量较大,对迟熟早稻,中稻和部分晚稻能造成一定程度的危害与损失。鉴于此虫在我县为害逐年猖獗,我们于1978年秋至1979年对白翅叶蝉进行了室内饲养,观察了其生物学特性,为测报及防治提供依据,兹将结果初报如下。 一、年生活史 根据室内饲养观察和田间调查,白翅叶蝉在我县一年发生三代,以第二代少数成虫和第三代成虫越冬。第一代成虫高峰期于6月下旬
In recent years, Thaia subrufa (Motschulsky) has become one of the major pests of rice in our county, especially in the mountainous areas and near mountainous areas. It may cause some damage to late-maturing early-season rice, middle-aged rice and part of late-season rice With loss. In view of this pest infestation in our county year by year rampant, we in 1978 to 1979, the white-winged leaf cicadas were kept in the house, observed its biological characteristics, to provide the basis for reporting and prevention, the results of the initial report is as follows. First, the annual life history According to indoor rearing observations and field surveys, white-winged leaf cicada occurred in our county three generations a year to the second generation of small adults and third-generation adults wintering. The first generation of adults peaked in late June