药剂作用下的小菜蛾自然种群生命表的组建与重要因子分析  

Construction and important factors analysis of natural life table of diamonthback moth, Plutella xylostella under pesticides treatment.

作　　者：刘新[1] 尤民生[1] 

机构地区：[1]福建农林大学植物保护学院,福州350002

出　　处：《应用生态学报》2003年第8期1395-1397,共3页Chinese Journal of Applied Ecology

基　　金：福建省重大科技项目 ( 2 0 0 2N0 0 7);福建省自然科学基金资助项目 ( 950 2 0 )

摘　　要：The natural life tables of diamonthback moth (DBM), Plutella xylostella under pesticides treatment were constructed,and the construction method of item "pesticide" was particularly discussed.The life tables indicated that the indices of population trend (I) under the treatment with 80% Dichlorvos EC 1000x and the contrast were 0.7796 and 1.4804, respectively,showing that Dichlorvos had some control on DBM. But,Dichlorvos had some effects on natural enemies of DBM. The decrease of parasitism rate at pupa stage was most obvious,which indicated that Dichlorvos had some effects of killing and wounding on the natural enemies of DBM.The natural life tables of diamonthback moth (DBM), Plutella xylostella under pesticides treatment were constructed,and the construction method of item 'pesticide' was particularly discussed.The life tables indicated that the indices of population trend (I) under the treatment with 80% Dichlorvos EC 1000x and the contrast were 0.7796 and 1.4804, respectively,showing that Dichlorvos had some control on DBM. But,Dichlorvos had some effects on natural enemies of DBM. The decrease of parasitism rate at pupa stage was most obvious,which indicated that Dichlorvos had some effects of killing and wounding on the natural enemies of DBM.

关 键 词：药剂作用 小菜蛾 自然种群 生命表 

分 类 号：S436.3[农业科学—农业昆虫与害虫防治]