| 益蝽5龄若虫对不同龄期粘虫幼虫的捕食作用 |
| |
| 引用本文： | 申修贤,田太安,刘健锋,于晓飞,董祥立,李治模,杨茂发.益蝽5龄若虫对不同龄期粘虫幼虫的捕食作用[J].中国农学通报,2022,38(3):116-120. |
| |
| 作者姓名： | 申修贤 田太安 刘健锋 于晓飞 董祥立 李治模 杨茂发 |
| |
| 作者单位： | 1.贵州大学昆虫研究所,贵州省山地农业病虫害重点实验室,贵阳 550025;2.贵州大学烟草学院,贵阳 550025;3.贵州省烟草公司遵义市公司凤冈县分公司,贵州遵义 564200 |
| |
| 基金项目： | 中国烟草总公司贵州省公司科技项目“贵州省山地生态烟叶无人机应用研究与示范”(201934);贵州省高层次创新型人才(“百”层次)培养项目(黔科合人才[2016]4022号) |
| |
| 摘 要： | 为了探究益蝽Picromerus lewisi对粘虫Mythimnaseperata的生防潜能,室内条件下测定了益蝽5龄若虫对不同密度粘虫3～6龄幼虫的捕食量.结果 表明:益蝽5龄若虫对粘虫3～6龄幼虫捕食作用均符合HollingⅡ方程,其中日最大捕食量为3龄(24.390)＞4龄(7.042)＞5龄(6.061)＞6...
|
| 关 键 词： | 益蝽 粘虫 捕食 寻找效应 自身干扰 生物防治 |
| 收稿时间： | 2021-03-20 |
The 5th Instar Nymph of Picromerus lewisi: Predation Responses to Different Instars of Mythimna seperata |
| |
| SHEN Xiuxian,TIAN Tai&#x,an,LIU Jianfeng,YU Xiaofei,DONG Xiangli,LI Zhimo,YANG Maofa.The 5th Instar Nymph of Picromerus lewisi: Predation Responses to Different Instars of Mythimna seperata[J].Chinese Agricultural Science Bulletin,2022,38(3):116-120. |
| |
| Authors: | SHEN Xiuxian TIAN Tai&#x an LIU Jianfeng YU Xiaofei DONG Xiangli LI Zhimo YANG Maofa |
| |
| Institution: | 1.Institute of Entomology of Guizhou University, Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Regions, Guiyang 550025;2.College of Tobacco Science of Guizhou University, Guiyang 550025;3.Fenggang Branch of Guizhou Tobacco Company, Zunyi, Guizhou 564200 |
| |
| Abstract: | The aim is to study the biological control potential of Picromerus lewisi for Mythimna separata. The predation ability of the 5th instar nymphs of Picromerus lewisi on the 3rd to the 6th instar larvae of Mythimna separata was detected under the indoor condition. The results showed that the predation of the 5th instar nymphs of Picromerus lewisi on the 3rd to the 6th instar larvae of Mythimna separata accorded with Holling Ⅱ equation. The average maximum daily prey was the 3rd instar larva (24.390) > the 4th instar larva (7.042) > the 5th instar larva (6.061) > the 6th instar larva (3.690). The instantaneous attack rate was the 3rd instar larva (1.303)> the 4th instar larva (0.404)> the 5th instar larva (0.581)> the 6th instar larva (0.554). With the increase of the density of Mythimna separata at different instars, the searching efficiency of Picromerus lewisi 5th instar nymphs gradually decreased, and the searching efficiency for the 3rd instar larvae was the highest, and a/Th was 31.780. With the increase of the density of the 5th instar nymphs of Picromerus lewisi, the interference effect increased, and the intraspecific interference coefficient was 0.720. This study show that the 5th instar nymphs of Picromerus lewisi could prey on the 3rd to the 6th instar larvae of Mythimna separata, among which the predatory potential for the 3rd instar Mythimna separata is the largest. |
| |
| Keywords: | Picromerus lewisi Mythimna seperata predation searching efficiency intraspecific interference biological control |
|
| 点击此处可从《中国农学通报》浏览原始摘要信息 |
| 点击此处可从《中国农学通报》下载免费的PDF全文 |
|
