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草地螟(Loxostege sticticalis 1.)的分布和种群数量的变动受区域生态条件的影响,早已被证实。在一定虫源基础上,种群的膨大或缩小,取决于成虫生殖力强弱。而成虫生殖力与主要生态因子的关系,苏联等昆虫学家亦有不少观察试验报导,但直到目前其主要数据仍是交错变化、或幅度过大或其说不一,终不能确切地描述草地螟成虫的生殖能力,更难作为指标来判断我省草地螟的自然发生状态,远远不能适应作为防治草地螟危害的需要。为了
The distribution and population variation of Loxostege sticticalis 1. have been confirmed by the regional ecological conditions. Based on certain insect sources, population expansion or contraction, depending on the strength of adult fecundity. Insect fertility and the relationship between the main ecological factors, the Soviet Union and other entomologists also have a lot of observation and test reports, but until now its main data is still staggered, or too large or vary, and ultimately can not be accurately described Grasshopper adult reproductive capacity, more difficult as an indicator to determine the natural occurrence of meadow moth in our province, far from being able to adapt as a need to control the harm of Meadow Stem. in order to