小白菜花叶病传毒介体蚜虫的空间分布  

SPATIAL DISTRIBUTION OF APHID VECTORS OF CHINESE-SMALL-CABBAGE MOSAIC

作　　者：王振中[1] 林孔勋[1] 范怀忠[1] 

机构地区：[1]华南农业大学植保系

出　　处：《华南农业大学学报》1992年第1期30-35,共6页Journal of South China Agricultural University

摘　　要：小白菜花叶病传毒介体蚜虫(Myzus persicoe和Rhopolosiphum pseudobrassicos)的若虫和无翅成虫在田间为聚集型分布,分布的基本成分为个体群,且随着群体密度的增加,拥挤度越来越高。有翅成虫在田间的分布为随机分布。这种分布类型与花叶病病株的田间分布类型一致,表明有翅成虫为病害传播的主要媒介。The spatial distribution patterns of the aphid vectors, Myzus persicae and Rhopalosipum pseudobrassicoe, of Chinese-small-cabbage mosaic were studied based on field investigations. The results showed that nymphae and apterae aggregated through the growing season and became more aggregated with the increasing of the size of the populations, while alatae always had a random distribution. The fact that the distribution of alatae was similiar to that of diseased plants showed that alatae were the main effective vector of the disease.

关 键 词：小白菜 花叶病 传毒介体 蚜虫 

分 类 号：S436.349[农业科学—农业昆虫与害虫防治]