摘要
防治前与防治后赤松毛虫幼虫在松林的空间分布型均为聚集分布。用Ｉｗａｏ方法给出了防治前与防治后的理论抽样数，进行了防治前与防治后的序贯抽样分析。
The distribution pattern of larvae of Dendrolimus spectabilis (Butler) before and after controlling in pine trees all belongs to the aggregate pattern. Its theoretical frequency of distribution and sequential sampling tables are obtined.
出处
《华东昆虫学报》
1997年第2期66-68,共3页
Entomological Journal of East China
