Functional and numerical responses of Stethorus tridens Gordon (Coleoptera: Coccinellidae) preying on Tetranychus bastosi Tuttle, Baker & Sales (Acari: Tetranychidae) on physic nut (Jatropha curcas)

被引：17

作者：

Costa, Jessica F. ^{[1
]}

Matos, Claudia H. C. ^{[1
]}

de Oliveira, Carlos R. F. ^{[1
]}

da Silva, Thieres G. F. ^{[1
]}

Lima Neto, Ibsen F. A. ^{[1
]}

机构：

[1] Univ Fed Rural Pernambuco, Unidade Acad Serra Talhada, Rua Gregorio Ferraz Nogueira S-N, BR-56909535 Serra Talhada, PE, Brazil

来源：

BIOLOGICAL CONTROL | 2017年 / 111卷

关键词：

Stethorini; Predation; Tetranychids; Biological control; SPIDER-MITE; TIME; CONSUMPTION; PREDATION; PUNCTUM;

D O I：

10.1016/j.biocontrol.2017.04.015

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Coccinellids of the tribe Stethorini specialize in preying on mites, especially tetranychids, and are widely studied for control of pest mites in various crops around the world. The present study determined the functional and numerical responses of female Stethorus tridens Gordon (Coleoptera: Coccinellidae) to various densities of eggs, larvae, nymphs and adults of the pest mite Tetranychus bastosi Tuttle, Baker 8; Sales (Acari: Tetranychidae) feeding on physic nut, Jatropha curcas. The predator consumed significantly more eggs and larvae than other prey stages and showed a type III functional response to eggs and larvae, and a type II functional response to nymphs and adults. The highest attack rate and the shortest handling time were obtained on eggs and larvae of T. bastosi. Stethorus tridens consumed proportionately more prey of all stages at lower densities, indicating that S. tridens might be more effective in suppressing mite populations at low densities. The numerical response of S. tridens was maximal on high densities of adult T. bastosi.

引用

页码：1 / 5

页数：5

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