Functional Response of Coccinella septempunctata (Coleoptera: Coccinellidae) to Different Species of Aphids (Hemiptera: Aphididae)

IF 0.2 4区 农林科学 Q4 ENTOMOLOGY
Muhammad Farrukh Hamid, Y. Hameed, M. Sarmad, K. Abbas, Muhammad Shahzaib, M. Zakria, S. M. Zaka
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引用次数: 2

Abstract

ABSTRACT: Stage-specific functional response of Coccinella septempunctata L. was evaluated under laboratory conditions to varying densities (10, 20, 40, 60, 80, 100, 120, 150 and 200) of Lipaphis erysimi (Kaltenbach)., Diuraphis noxia Kurdjumov. and Aphis nerii Fonscolombe. Logistic regression analysis of all life stages of C. septempunctata exhibited negative linear-coefficient (P1), confirming a curvilinear type II functional response against all the tested aphid species. The fourth instar of C. septempunctata, in comparison to other stages, exhibited the highest predation activity against D. noxia and A. nerii, with an attack rate (a) of 7.31 h-1, 5.79 h-1 and handling time (Th) of 0.0106 h, 0.0092 h, respectively. Under different densities of L. erysimi, adult females of C. septempunctata exhibited the highest predation activity with an a of 7.58 h-1, followed by the fourth instar with a of 7.31 h-1 and adult male 6.60 h-1 and Th of 0.0066 h, 0.0079 h and 0.0092 h, respectively. The attack rate and handling time estimated for different stages of C. septempunctata showed that the fourth instar of C. septempunctata had the highest attack rate, whereas handling time was variable. Adult females of C. septempunctata showed minimum handling time (0.00013 h) in most of the cases. Our results suggest that the fourth instar larvae and adult female of C. septempunctata are efficient predator for the biological control of L. erysimi, D. noxia and A. nerii. Further field-based studies are needed to confirm this hypothesis.
七星瓢虫(鞘翅目:瓢虫科)对不同种类蚜虫(半翅目:蚜科)的功能反应
摘要:在实验室条件下,对不同密度(10、20、40、60、80、100、120、150和200)的红斑唇疱疹病毒(Kaltenbach)进行了阶段特异性功能反应的评估。,Diuraphis noxia Kurdjumov。和Aphis nerii Fonscolombe。对C.septempunctata所有生命阶段的Logistic回归分析显示出负线性系数(P1),证实了对所有测试的蚜虫物种的曲线II型功能反应。与其他阶段相比,C.septenunctata的四龄期对D.noxia和A.nerii表现出最高的捕食活性,攻击率(A)分别为7.31 h-1、5.79 h-1,处理时间(Th)分别为0.0106 h、0.0092 h。在不同密度下,C.septenunctata的成年雌性表现出最高的捕食活性,a为7.58 h-1,其次是四龄,a为7.31 h-1,成年雄性6.60 h-1,Th分别为0.0066 h、0.0079 h和0.0092 h。对不同阶段的C.septempunctata的攻击率和处理时间进行了估算,结果表明,四龄的C.sepempunctata攻击率最高,而处理时间是可变的。在大多数情况下,septempunctata的成年雌性表现出最短的处理时间(0.00013小时)。我们的研究结果表明,C.septenunctata的四龄幼虫和成年雌性是有效的捕食者,可以生物防治L.erysimi、D.noxia和A.nerii。需要进一步的实地研究来证实这一假设。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.60
自引率
0.00%
发文量
12
审稿时长
>12 weeks
期刊介绍: The Journal of the Kansas Entomological Society is a publication of the Kansas (Central States) Entomological Society, publishes research on all aspects of the sciences of entomology, and has world-wide authorship and readership.
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