| 不同龄期的益蝽对粘虫的捕食功能反应 |
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| 引用本文： | 唐艺婷,郭义,何国玮,刘晨曦,陈红印,张礼生,王孟卿.不同龄期的益蝽对粘虫的捕食功能反应[J].中国生物防治学报,2018,34(6):825-830. |
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| 作者姓名： | 唐艺婷 郭义 何国玮 刘晨曦 陈红印 张礼生 王孟卿 |
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| 作者单位： | 中国农业科学院植物保护研究所/中美合作生物防治实验室, 北京 100193 |
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| 基金项目： | 国家重点研发计划（2017YFD0201000）；国家自然科学基金（31672326）；"948"重点项目（2016-X48） |
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| 摘 要： | 益蝽Picromerus lewisi Scott是一种重要的捕食性昆虫，为探究其控害潜能，在实验室条件下研究不同龄期的益蝽对粘虫的捕食能力。选择饥饿24 h的3、4、5龄益蝽若虫和成虫对不同密度的3龄粘虫进行捕食量测定试验，试验结果为3、4、5龄益蝽若虫和成虫的日平均捕食量分别为3.33、4.23、8.00和6.50头，每个龄期的捕食功能反应都符合HollingⅡ圆盘方程，其攻击率分别为1.036、0.742、1.445和1.422，处理猎物的时间分别为0.313、0.158、0.112和0.135 d；试验中发现益蝽偏食活猎物。结果表明利用益蝽进行生物防治时，选择5龄若虫，控害效果最好。
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| 关 键 词： | 益蝽 粘虫 龄期 功能反应 生物防治 |
| 收稿时间： | 2018-03-30 |
Functional Responses of Picromerus lewisi Scott (Hemiptera: Pentatomidae) Attacking Mythimna separata (Walker) (Lepidoptera: Noctuidae) |
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| TANG Yiting,GUO Yi,HE Guowei,LIU Chenxi,CHEN Hongyin,ZHANG Lisheng,WANG Mengqing.Functional Responses of Picromerus lewisi Scott (Hemiptera: Pentatomidae) Attacking Mythimna separata (Walker) (Lepidoptera: Noctuidae)[J].Chinese Journal of Biological Control,2018,34(6):825-830. |
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| Authors: | TANG Yiting GUO Yi HE Guowei LIU Chenxi CHEN Hongyin ZHANG Lisheng WANG Mengqing |
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| Affiliation: | USDA-ARS Sino-American Biological Control Laboratory/Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China |
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| Abstract: | Picromerus lewisi Scott is an important predatory insect. The predation ability of P. lewisi at different stages on Mythimna separata (Walker) was studied to evaluate its potential in biological control. The predator 3rd, 4th, 5th and adult individuals were confined with varying densities of the 3rd instar caterpillar for 24 hours in petri-dishes. The average daily number of prey consumed was 3.33 (3rd), 4.23 (4th), 8.00 (5th), 6.50(adult). All the predator stages exhibited Holling Ⅱ functional responses, with attacking efficiency of 1.036 (3rd), 0.742 (4th), 1.445 (5th), and 1.422 (adult) and handling time of 0.313 d (3rd), 0.158 d (4th), 0.112 d (5th), and 0.135 d (adult). P. lewisi preferred living prey over dead one. The results show that the 5th instars of P. lewisi are potential for field release. |
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| Keywords: | Picromerus lewisi Mythimna separate instar functional responses biological control |
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