山东农业科学2012，Vol.44Issue(5)：89-91,3.
龟纹瓢虫成虫对高粱蚜的捕食作用
Predation of Adult Propylaea japonica Thunberg on Aphis sacchari Zehntner
摘要
Abstract
The functional response and searching efficacy of adult Propylaea japonica Thunberg on Aphis sacchari Zehntner were evaluated in laboratory. The results showed that the functional response of female and male adults off. japonica could be described with Hulling fl equation. The predation capacity off. japonica increased with the increasing density of A. saccharic while its searching efficacy decreased. The time for female, and male adults of P. japonica treating one Aphis sacchari ( Th) was 0. 017 days and 0. 024 days respectively and the instant damage (a) was 1. 661 and 2. 967 respectively with the maximum predation number as 58.824 and 41.667 respectively. The predalion of P. japonica was influenced by the intraspecific interference, and the individual predation decreased with the increase of predator density. The intensity of scrambling competition (I) was only 0.0689 at 2 P. japonica per dish, which indicated that the intraspecific interference at this density was very low.关键词
龟纹瓢虫/高粱蚜/捕食作用Key words
Propylaea japonica Thunberg/ Aphis sacchari Zehntner/ Predation分类
农业科技引用本文复制引用
李林懋,叶保华,门兴元,于毅,张安盛,李丽莉,张思聪,周仙红..龟纹瓢虫成虫对高粱蚜的捕食作用[J].山东农业科学,2012,44(5):89-91,3.基金项目
国家自然科学基金重点项目(31030012) （31030012）
