| 杭州悬铃木方翅网蝽的捕食性天敌种类及日本通草蛉幼虫捕食作用 |
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| 引用本文： | 纪锐,王宝辉,娄永根.杭州悬铃木方翅网蝽的捕食性天敌种类及日本通草蛉幼虫捕食作用[J].中国生物防治,2011,27(1):32-37. |
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| 作者姓名： | 纪锐 王宝辉 娄永根 |
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| 作者单位： | 浙江大学昆虫科学研究所,杭州,310029 |
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| 基金项目： | 浙江省科技厅资助项目(2008C22010); 杭州市园林文物管理局项目(2007-006) |
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| 摘 要： | 本文调查发现杭州悬铃木方翅网蝽Corythucha ciliata(Say)的捕食性天敌有5科7种,主要是日本通草蛉Chrysoperla nipponensis(Okamoto)、普通草蛉Chrysoperla carnea(Stephens)和小花蝽属Orius spp..日本通草蛉幼虫对悬铃木方翅网蝽成虫、若虫的捕食功能反应均符合Holling Ⅱ型方程,捕食作用强弱为:日本通草蛉3龄幼虫捕食若虫＞日本通草蛉2龄幼虫捕食若虫＞日本通草蛉3龄幼虫捕食成虫,其对应的搜寻效率α与处理时间Th值分别为1.0141、0.5687、0.3757和0.0075、0.0121、0.0267.成虫和若虫共存时,日本通草蛉3龄幼虫喜好捕食若虫.日本通草蛉幼虫的搜寻效应随猎物密度的增加而降低.在悬铃木方翅网蝽若虫密度相同的条件下,日本通草蛉2龄、3龄幼虫随着自身密度的增大,其平均捕食量逐渐减少,捕食作用率也相应降低,其捕食作用率E与自身密度P的关系分别为:E=0.3164 P-0.4700和E=0.3411 P-0.4762.日本通草蛉幼虫间存在分摊竞争.
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| 关 键 词： | 悬铃木方翅网蝽 捕食性天敌 日本通草蛉幼虫 捕食作用 功能反应 |
Predators of Corythucha ciliata (Say) in Hangzhou and the Predation of Chrysoperla nipponensis (Okamoto) Larvae |
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| JI Rui
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WANG Bao-hui
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LOU Yong-gen.Predators of Corythucha ciliata (Say) in Hangzhou and the Predation of Chrysoperla nipponensis (Okamoto) Larvae[J].Chinese Journal of Biological Control,2011,27(1):32-37. |
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| Authors: | JI Rui WANG Bao-hui LOU Yong-gen |
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| Institution: | JI Rui,WANG Bao-hui,LOU Yong-gen(Institute of Insect Science,Zhejiang University,Hangzhou 310029,China) |
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| Abstract: | Seven species of predators of Corythucha ciliata(Say),which belongs to 5 families,were found in Hangzhou,in which Chrysoperla nipponensis(Okamoto), Chrysoperla carnea(Stephens) and Orius spp.were the most numerous and widely distributed species.The functional responses of C.nipponensis larvae on C.ciliata could be described with the Holling II equation,and the preying capacity of C. nipponensis larvae on C.ciliata nymphs or adults ranked as: the 3rd instar larvae of C.nipponensis on C.ciliata nymphs > the 2... |
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| Keywords: | Corythucha ciliata predators Chrysoperla nipponensis larvae predation functional response |
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