叉角厉蝽对茶银尺蠖幼虫的捕食作用及捕食偏好性

陈俊华; 闻鑫茹; 王晨旭; 张俏俏; 刘红敏; 宁万光; 郭世保

doi:10.13305/j.cnki.jts.2025.01.009

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茶叶科学 ›› 2025, Vol. 45 ›› Issue (1) : 87-98. DOI: 10.13305/j.cnki.jts.2025.01.009

研究报告

叉角厉蝽对茶银尺蠖幼虫的捕食作用及捕食偏好性

陈俊华^1,2, 闻鑫茹¹, 王晨旭¹, 张俏俏¹, 刘红敏^1,2, 宁万光¹, 郭世保^1,2,*

作者信息 +

Predation and Predilection of Eocanthecona furcellata to Larvae of Scopula subpunctaria (Lepidoptera: Geometridae)

CHEN Junhua^1,2, WEN Xinru¹, WANG Chenxu¹, ZHANG Qiaoqiao¹, LIU Hongmin^1,2, NING Wanguang¹, GUO Shibao^1,2,*

Author information +

文章历史 +

摘要

为评估叉角厉蝽（Eocanthecona furcellata）成虫对茶银尺蠖（Scopula subpunctaria）2~4龄幼虫的控害潜能。室内测定叉角厉蝽雌雄成虫对2~4龄茶银尺蠖幼虫的捕食功能反应、搜寻效应,探究了叉角厉蝽雌雄成虫对3~4龄茶银尺蠖的种内干扰效应,以及叉角厉蝽5龄若虫和雌雄成虫对灰茶尺蠖（Ectropis grisescens）与茶银尺蠖幼虫的捕食偏好性。结果显示,叉角厉蝽雌雄成虫均能捕食2~4龄茶银尺蠖幼虫,且捕食功能反应符合Holling Ⅱ和Holling Ⅲ模型。叉角厉蝽雌雄成虫对茶银尺蠖幼虫的控害效能表现为雌成虫>雄成虫,以叉角厉蝽雌成虫对2龄茶银尺蠖幼虫的控害效能最大,为37.044;在拟合的Holling Ⅲ模型中,叉角厉蝽雌雄成虫对茶银尺蠖2龄幼虫的日均最大捕食量分别为15.823头和12.547头,最佳寻找密度分别为每盒4.971头和6.836头。叉角厉蝽对茶银尺蠖幼虫的搜寻效应结果表明,随猎物密度的降低,搜索的效率逐渐提升。此外,在灰茶尺蠖和茶银尺蠖幼虫同时存在的情况下,叉角厉蝽5龄若虫和雌雄成虫均偏好于取食茶银尺蠖幼虫;同时,叉角厉蝽雌雄成虫对茶银尺蠖幼虫捕食作用受到自身密度的干扰,且捕食3龄茶银尺蠖幼虫的干扰系数大于捕食4龄茶银尺蠖幼虫。研究结果为叉角厉蝽在茶园害虫生物防控中的应用提供研究基础。

Abstract

The present study aimed to evaluate the biological control potential of Eocanthecona furcellata against the 2nd to 4th instar Scopula subpunctaria larvae. Indoor experiments were conducted to determine the predatory functional responses and searching efficiency of male and female adults of E. furcellata on 2nd-4th instar S. subpunctaria larvae. Additionally, the intraspecific interference effects of male and female adults of E. furcellata on the 3rd-4th instar S. subpunctaria larvae were investigated, as well as the predatory preferences of male and female adults of E. furcellata and 5th instar nymphs towards larvae of Ectropis grisescens and S. subpunctaria . The results show that both male and female adults of the E. furcellata were able to prey on the 2nd-4th instar S. subpunctaria larvae, and the predation response was consistent with the Holling Ⅱ and Holling Ⅲ models. The control efficiency of male and female adults of the E. furcellat against the S. subpunctaria is shown as female adults>male adults, with the female adult of the E. furcellat having the highest control efficiency against the 2nd instar S. subpunctaria (37.044). In the fitted Holling Ⅲ model, the daily maximum predation rates for the 2nd instar S. subpunctaria larvae were 15.823 and 12.547, respectively, and the optimal searching densities were 4.971 and 6.836 per box, respectively. The searching effect of the E. furcellat on S. subpunctaria larvae indicates that the searching efficiency gradually increased with the decrease of prey density. In addition, in the presence of both the E. grisesens and the S. subpunctaria, both male and female adults and 5th instar nymphs of E. furcellata preferred to feed on the S. subpunctaria larvae. At the same time, the predation of S. subpunctaria larvae by male and female adults of the E. furcella was affected by their own density, and the interference coefficient when preying on the 3rd instar S. subpunctaria larvae was greater than that preying on the 4th instar S. subpunctaria larvae. This result provided a research basis for the biological control application of the E. furcellat in tea gardens.

导出引用

陈俊华, 闻鑫茹, 王晨旭, 张俏俏, 刘红敏, 宁万光, 郭世保. 叉角厉蝽对茶银尺蠖幼虫的捕食作用及捕食偏好性[J]. 茶叶科学. 2025, 45(1): 87-98 https://doi.org/10.13305/j.cnki.jts.2025.01.009

CHEN Junhua, WEN Xinru, WANG Chenxu, ZHANG Qiaoqiao, LIU Hongmin, NING Wanguang, GUO Shibao. Predation and Predilection of Eocanthecona furcellata to Larvae of Scopula subpunctaria (Lepidoptera: Geometridae)[J]. Journal of Tea Science. 2025, 45(1): 87-98 https://doi.org/10.13305/j.cnki.jts.2025.01.009

中图分类号： S571.1 S435.711

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