农业科学研究2015，Vol.36Issue(3)：86-89,93,5.
宁夏灌区玉米二斑叶螨种群动态初报
Report on population dynamics of Tetranychus urticae in Ningxia
摘要
Abstract
A survey was carried out to understand the occurrence of Tetranychus urticaein Yinchuan Ningxia from May to September 2014. The results showed that as follows: the natural population dynamics of Tetranychus urticae were divided into five stages,the spatial patterns of the mite were aggregated,and the aggregation intensity decreased with increasing population density. The population began to colonize with low quantity on a few corns and low damage index in early July,increased slowly with low density and high aggregation intensity in mid-July,meanwhile the damage index and the rate of Mite corn are increased,rose quickly and distributed in whole cornfields with high density and declining aggregation intensity from the end of July to mid-August,the rate of Mite corns has reached 100%,damage index increased significantly;reached the highest with the lowest aggregation intensity in the end of August;declined quickly in September.关键词
二斑叶螨/种群动态/玉米/宁夏Key words
Tetranychus urticae/population dynamics/corn/Ningxia分类
农业科技引用本文复制引用
张云会,王章训,常春燕,王新谱..宁夏灌区玉米二斑叶螨种群动态初报[J].农业科学研究,2015,36(3):86-89,93,5.基金项目
教育部新世纪优秀人才支持计划资助(NCET-07-0470) （NCET-07-0470）
