越桔两种蛀干害虫的发生与防治

Occurence and control of two stem borers on blueberry.

咖啡豹蠹蛾ZeuzeracoffeaeNietner和樟泥色天牛Uraechaangusta(Pascoe)是江苏地区的美国兔眼越桔上 2种主要蛀干害虫。前者在枝干中向顶端方向蛀食 ,排出圆粒状虫粪 ;后者向植株基部方向蛀食 ,排出粉末状虫粪 ,均造成枝干枯死。咖啡豹蠹蛾发生量较大 ,是主要虫种。防治这 2种蛀干害虫 ,应采用保护利用天敌、改善果园生态环境、促使树体健壮生长等综合管理措施。

Red coffee borer Zeuzera coffeae Nietner and a longicorn Uraecha angusta (Poscoe) are two main stem borers on blueberry Vaccinium ashei Reade in Jiangsu Province.In branches,the former borer is towards the top and the latter borer towards the root.They all cause branches dead.And their damage may be controlled through enhancing the manegement of orchard mainly.