杏短痣茎蜂生物学观察及防治

Biological Observation and Control Experiments of Stigmatijanus armeniacae

杏短痣茎蜂是近年来发生在甘肃天水杏树及红叶李上的一种新害虫。严重危害此2个种树种当年生枝条,在甘肃天水1年发生1代,以预蛹在寄主被害枝内做茧越冬。幼虫发育期至成虫羽化前期可结合冬春季修剪剪除有虫枝梢,并集中销毁;成虫期至幼虫孵化期可用1.8%阿维菌素乳油1 500倍液喷雾防治,防效可达95.1%。

The sawfly Stigmatijanus armeniacae is a new pest on Prunus armeniaca and P. cerasifera in Tianshui of Gansu. It seriously damages the raw branches and one generation of S. armeniacae occurred in Tianshui per year. They over-wintered as prepupae in their cocoons. Theirs cocoons were produced in the damaged branches of host. With winter or spring pruning method, cuted off branches with the larvae or prepupae and concentrated destruction. In the adult to the incubation period of the eggs, the control effect with 1.8% Abmectin EC 1 500 was 95.1%.