贵阳地区豆野螟和亮灰蝶的生物学特性

在贵阳地区，豆野螟Maruca testulalis Geyer和亮灰蝶Lampides boeticus(L．)是豇豆的主要钻蛀性害虫，其田间虫口之和占钻蛀性害虫虫口总量的99．9％；它们每年均可完成5个世代，7月上旬～8月上旬田间虫口达最高峰，对豇豆等多种豆类蔬菜的产量和品质危害极大。该文报道这2种害虫的生物学特性和田间种群消长规律，包括各代田间可见时间(从卵至成虫)、各虫态历期、发育速率、发育起点温度、有效积温等，结合本研究结果及国内相关文献探讨了2种钻心虫的某些生物学特性和防治对策。

Biological characteristics of the bean pod borer and bean butterfly in Guiyang

The bean pod borer Maruca testulalis Geyer and bean butterfly Lampides boeticus (L.) are the primary boring pests in Guiyang, Guizhou Province. These two species made up 99.9% of the numbers of all known cowpea borers. Each of these two pests has 5 generations each year in Guiyang. From the first 10 days of July to the first 10 days of August there is a marked increase in their population size which seriously endangers cowpea and other leguminous crops. This paper describes the biological characteristics and population dynamics of these two insect pests in field, including perceptible periods of different generations each year (from egg to adult), duration, development rate, development threshold temperature and effective temperature summation of different stages in different generations, etc. Biological characteristics of the 2 borers and control measures are given.