The research was carried out by investigating number of predators and predation capabilities along with mortalities of the pine bast scale (?Matsucoccus liaoningensis? Tang) inside sampling plot, and by applying the ?K?-value graphic analysis method.
英
美
- 采用樣方內各種捕食天敵數量與其捕食量引起遼寧松干蚧Matsucocusliaoningen?sisTang1）死亡數的調查統計法、K－值圖解分析法，研究了遼寧松干蚧捕食天敵的作用。
