中华通草蛉和大草蛉幼虫对黑刺粉虱 若虫的捕食功能反应
Predatory responses of Chrysoperla sinica (Tjeder) and Chrysopa pallens larvae to Aleurocan spinfetus (Quaintance) nymphs
唐天成1** 张 艳1 李程锦1 曹欣然2 陈珍珍1*** 许永玉1***
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DOI：10.7679/j.issn.2095-1353.2018.030
作者单位：1. 山东农业大学植物保护学院昆虫学系，泰安 271018；2. 烟台农业技术推广中心，烟台 264001
中文关键词： 中华通草蛉，大草蛉，黑刺粉虱，捕食功能，自身密度，种内干扰
英文关键词：Chrysoperla sinica (Tjeder), Chrysopa pallens (Rambur), Aleurocan spinfetus (Quaintance), predation function, self-density, intraspecific interference
中文摘要：
【目的】 为了研究中华通草蛉Chrysoperla sinica （Tjeder）幼虫和大草蛉Chrysopa pallens （Rambur）幼虫对黑刺粉虱Aleurocan spinfetus（Quaintance）若虫的捕食作用。【方法】 在室内（25±1）℃条件下对2种草蛉的捕食功能反应模型进行了评估，并对2种草蛉的3龄幼虫的种内干扰作用和自身密度作用的反应方程进行了拟合。【结果】 2种草蛉的捕食功能均属于Holling Ⅱ反应模型，捕食量均随黑刺粉虱若虫密度的增加而增加。中华通草蛉和大草蛉的自身密度方程分别为E=0.753 0×P–0.134 8和E=0.697 5×P–0.164 6，种内干扰作用方程分别为A=2.362 6×P–0.231 8和A=2.429 6×P–0.225 6。【结论】 中华通草蛉和大草蛉对黑刺粉虱均具有较好的捕食作用。
英文摘要：
[Objectives] To study the predatory responses of Chrysopa sinica (Tjeder) larvae and Chrysopa pallens (Rambur) larvae to Aleurocan spinfetus (Quaintance) nymphs. [Methods] Predatory responses of C. sinica and C. pallens larvae to A. spinfetus nymphs, and mutual interference among 3rd instar larvae, were measured at (25±1) ℃ under laboratory conditions. [Results] Predatory responses of all larval stages of C. sinica and C. pallens were of the Holling type, and the number of nymphs preyed on increased with increasing density. The density equations of C. sinica and C. pallens larvae were E= 0.753 0×P–0.134 8 and E=0.697 5×P–0.164 6, respectively and their intraspecific interference equations were A=2.362 6×P–0.231 8 and A=2.429 6×P–0.225 6, respectively. [Conclusion] Both C. sinica and C. pallens larvae have substantial potential as biological controls for A. spinfetus.