摘要
本文根据稻纵卷叶螟1～5龄幼虫与捕食性天敌共存时的试验结果及对照处理中稻纵卷叶螟各龄幼虫数量变化,把由于天敌捕食作用所导致的数量变化信息区分出来,据此讨论捕食性天敌对稻纵卷叶螟各龄幼虫的选择捕食比率。得到:拟环纹狼蛛、拟水狼蛛、粽管巢蛛和食虫瘤胸蛛对稻纵卷叶螟3～5龄幼虫有较高选择比率,而青翅蚁形隐翅虫则对稻纵卷叶螟1～2龄幼虫有较高的选择捕食比率.
By the experiments of the coexisting system composed of 1～5 instar of
rice leafroller(Cnaphalocrocis medinalis,CM)and the predator,this paper deals
with the selective preying ability of the predator in rice field on CM.The spiders
(Pardosa pseudoannulata,Pirata subpiraticus,Clubiona japonicola,Oedothorax insec-
ticeps)prefer to prey the larvae of 3～5 instar of CM.But Paederus fuseipes per-
fers to prey the 1～2 ones.
出处
《昆虫天敌》
CSCD
1993年第4期167-170,共4页
Natural Enemies of Insects
关键词
稻纵卷叶螟
捕食性昆虫
天敌
Rice leaffroller Cnaphalocrocis medinalis
Predator
Selective preying effect
