摘要
南昌地区危害樟树的蚧虫种类经过考察鉴定后,得知有6种,其中以黑蜕白轮蚧,糠片盾蚧分布广、危害烈.为了便于控制,特对其进行空间分布型测定,结果均属聚集分布型,服从于负二项分布.
The present paper deals with the description of six species of Cocoidesendangering the Campho tree in Nanchang area.Among them,two species(Aulacaspis rosarum Bouchs and Parlatoria pergandii Comatock)are of extensivedistribution and of serious endangerment.The author made a research on theirdistribution patterns so as to get sounder control.The result showed that allpatterns are of collective distribution,belonging to negative binomial distribution.
出处
《江西农业大学学报》
CAS
CSCD
1990年第1期10-17,共8页
Acta Agriculturae Universitatis Jiangxiensis
关键词
樟树
害虫
蚧虫
种类
南昌
Cocoides
Collective distribution,Negative binomial distribution
