摘要
室内观察测定了中华草蛉3龄幼虫对西花蓟马的捕食功能反应和搜寻效应。结果表明,26℃条件下该捕食功能反应符合HollingⅡ型方程。随着猎物密度的增加,中华草蛉3龄幼虫对西花蓟马成虫、若虫的捕食量增加,搜寻效应降低,捕食上限分别为625.0头/d和714.3头/d。
The functional response and searching rate of 3 - instar Chrysopa sinica larvae on Frankliniella occidentalis were studied in laboratory. The results showed that the functional response could be described with Holling II equation at 26%. The predation capacity of 3 - instar C. sinica larvae on F. occidentalis adults and larvae increased with the increasing density of F. occidentalis, but the searching rate decreased. The maximal predation was 625.0 individual and 714.3 individual per day, respectively.
出处
《山东农业科学》
2012年第7期88-89,94,共3页
Shandong Agricultural Sciences
基金
山东省自然科学基金项目"主要天敌对危险性外来入侵害虫--西花蓟马的控制效能"(Y2007D68)
关键词
中华草蛉
西花蓟马
捕食作用
Chrysopa sinica
Frankliniella occidentalis
Predation
