| 异色瓢虫十九斑变型对菜蚜的捕食功能研究 |
| |
| 引用本文： | 齐玮,魏丽萍,闫正升,杨友兰.异色瓢虫十九斑变型对菜蚜的捕食功能研究[J].安徽农业科学,2007,35(36):11901-11901,11934. |
| |
| 作者姓名： | 齐玮 魏丽萍 闫正升 杨友兰 |
| |
| 作者单位： | 山西农业大学农学院,山西太谷,030801 |
| |
| 摘 要： | 目的]为优势种异色瓢虫十九斑变型的保护利用和菜蚜的生物防治提供理论依据。方法]以甘蓝田异色瓢虫十九斑变型的各龄幼虫及成虫为供试虫源,设5个菜蚜密度,研究异色瓢虫十九斑变型对菜蚜的捕食功能反应。结果]不同虫态的异色瓢虫十九斑变型对菜蚜的日捕食量差异较大,当菜蚜密度相同时,4龄幼虫捕食量最大,成虫和3龄幼虫次之,各龄幼虫及成虫对菜蚜的捕食功能反应均可以用HollingII型圆盘方程拟合。同一虫态瓢虫的捕食量随着蚜虫密度的增大而相应增大。异色瓢虫十九斑变型各龄幼虫及成虫自身密度对捕食作用的干扰效应明显,符合Hassel-Verley的干扰效应模型。结论]不同虫态的异色瓢虫十九斑变型对菜蚜的日捕食量差异较大,且随捕食者自身密度的增加而减少。
|
| 关 键 词： | 异色瓢虫十九斑变型 功能反应 干扰效应 |
| 文章编号： | 0517-6611（2007）36-11901-01 |
| 收稿时间： | 2007-08-20 |
| 修稿时间： | 2007年8月20日 |
Study on the Predacious Function of Harmonia axyridis ab.Ovemdecimpunctata on Vegetable Aphids |
| |
| QI Wei et al.Study on the Predacious Function of Harmonia axyridis ab.Ovemdecimpunctata on Vegetable Aphids[J].Journal of Anhui Agricultural Sciences,2007,35(36):11901-11901,11934. |
| |
| Authors: | QI Wei |
| |
| Abstract: | Objective] The purpose of the study was to provide theoretical basis for the protection and utilization of dominant species Harmonia axyridis ab.Ovemdecimpunctata and biological control of vegetable aphids.Method] With H.axyridis larva in each age and adults in cabbage field as tested insect source,5 densities of vegetable aphid were set up to study the predacious functional response of H.axyridis to vegetable aphids.Result] The diurnal predations of H.axyridis in different insect states on vegetable aphid had bigger difference.When the densities of vegetable aphids were same,the predation of 4th instar larva was largest,that of adults and 3rd larva was secondary.The predacious functional response of each instar larvae and adults to vegetable aphids could be all fitted with Holling Ⅱ Disc Equation.The predation of H.axyridis in the same insect state increased correspondingly along with the increment of aphids density.The disturbance effects of self density of each instar H.axyridis larvae and adults on predacious function were obvious,which accorded to the Hassel-Verley model of disturbance effect.Conclusion] The diurnal predations of H.axyridis in different insect states on vegetable aphid had bigger difference,and reduced along with the increment of predator self density. |
| |
| Keywords: | Harmonia axyridis ab Ovemdecimpunctata Functional response Interference effect |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
