摘要
麦蚜是小麦的主要害虫之一,不仅直接为害小麦,且传播黄矮病。不同地区,麦蚜发生程度及其优势种不同;同一地区,在小麦不同的生育期麦蚜优势种也会发生变化。
Researches are made on the interspecies competition between English grain aphid (Macrosiphum avenae), birdcherry aphid (Rhopalosiphum padi), greenbug (Schizaphis graminium) and their mixed populations. Causes for their improbability to coexist are analysed. Under natural conditions, R. padi and S. graminium can't occur simultaneously in general, and if they do, their quantities differ greatly. However, M. avenae can occur simultaneously with any one of them, and when it is dominant, the three species can occur at the same time. This conclusion is agreed with actual dccurence of wheat aphids under natural conditions. Meanwhile, the theoretical significance and practical values of this conclusion are briefly commented.
出处
《生态学杂志》
CAS
CSCD
北大核心
1991年第1期1-5,共5页
Chinese Journal of Ecology
关键词
麦蚜
种间竞争
wheat aphids, interspecies competition, niche.
