人纹污灯蛾生物学特性和防治方法的初步研究

A Preliminary Study On The Biology And Control Of Spilarctia subcarnea(walken)

人纹污灯蛾Spilarctia subcarnea(Walker)是吉林省近年来发生普遍、为害较重的灯蛾类害虫的优势种之一。该虫在吉林省一年发生2代,以蛹在表土下越冬。第一代幼虫在苗期严重危害多种作物,第二代幼虫在盛夏至初秋主要危害秋菜和经济作物。幼虫一般7龄,低龄幼虫群集取食,后期分散为害。幼虫寄主广,食量大,龄期多,危害期长,抗药性较强,爬行迅速,有明显的假死性。成虫有较强的趋光性。当前生产上常采用以化学防治为主,辅之适当的农业防治和人工防治的综合防治措施以控制为害。

the white tiger moth Spilarctur subearnea(walken) which disperses widely and. occurs; seri- recent years has become a kind of Rev pest on vegetable oil - bearing field crop and some crop in Jilin province. The pupae will pass over winter under the surface of the soil, there are 7 larval instars. The lavar gregarious in the initial stage but sequeritly dis there are some properties of the larvar as following: many host-plants, lager capacity more insters, long duration of damage, strong resistance to insecticides, swift in obvious feint death. The aduits show phototaxis. The method applied for controlling this mainly chemical control with some suitable agricultural control and artificial in the present