山西省晋中区域高粱蚜虫种群演变消长原因探析

根据近十多年来对晋中区域高粱蚜虫、天敌的发生消长资料以及结合气象同期资料结果分析,高粱蚜虫种群演变、发生程度、危害历期不仅与温度、湿度、降雨和天敌数量有直接关系,引发高粱蚜种群演变还与作物布局和高粱种植面积有着密切的关系。

Approach to Cause of Community Transmutation Sorghum Aphid in Center Shanxi

Analysis was made based on information about sorghun aphid and their natural enemy in Jinzhong for more than 10 years and climate data for the same period. The results showed that the community transmutation, infection level, damaging range were not only directly related with local temperature,humidity, precipitation and enemy number, but the community trans - mutation was also closely related with the local crops distribution and the area size of sorghum cultivation.