玉米耕葵粉蚧生物学特性的研究初报

A Preliminary Study on the Bionomics of Trionymus agrestis Wang at Zhang

玉米耕葵粉蚧是河北省玉米上新发现的一种害虫。本文记述了有关其生物学的初步研究结果。此虫以雌成虫及若虫严重为害玉米、高粱等作物根部。在河北省一年发生三代。以卵在玉米根茎上及周围土壤中越冬。对于寄生范围、防治方法以及各虫期的形态也作了记述。

The present paper deals with a preliminary study on the bionomics of Trionymus agrestis Wang et Zhang. It is a new important insect pest of maize found in Hebei Province of North China recently. The female adult and larvae cause serious injury to the root of maize and other host plants. The insect propagates three generations per year in Hebei Province, and hibernates in egg stage on root of maize and surrounding soil. Host plants, control measure and morphological descriptions of the different stages of the insect are also given in this paper.