Experimental and Applied Acarology, ( ISI ), Volume (37), No (1), Year (2005-7) , Pages (173-181)

Title : ( Predation by Allothrombium pulvinum on the spider mites Tetranychus urticae and Amphitetranychus viennensis: predation rate, prey preference and functional response )

Authors: Mojtaba Hosseini , B. HATAMI , A. SABOORI , H. ALLAHYARI , A. ASHOURI ,

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Abstract. The deutonymphs of Allothrombium pulvinum Ewing (Acari: Trombidiidae) are among the most important natural enemies of spider mites in North, North East and West Iran. In this study, maximum predation rate and preference experiments were conducted with A. pulvinum deutonymphs on apple leaf discs, to determine their preference for either of two spider mite species: Amphitetranychus viennensis (Zacher) and Tetranychus urticae Koch (Acari: Tetranychidae). Maximum predation rate tests showed that the predatory mite consumed more eggs and females of T. urticae than of A. viennensis. Furthermore, the Manly’s preference index for eggs and females of T. urticae confirmed that T. urticae were the preferred prey. The functional response of A. pulvinum deutonymphs on females of T. urticae was examined over a 24-h period. Predation of A. pulvinum deutonymphs presented with females of T. urticae followed a type III functional response. Esti- mated handling time for the predatory mites was 4.51 h and attack coefficient b, which describes the changes in attack rate with prey densities in a type III functional response, was 0.021.

Keywords

, Key words: Allothrombium pulvinum, Amphitetranychus viennensis, Functional respone, Prey preference, Tetranychus
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@article{paperid:1013487,
author = {Hosseini, Mojtaba and B. HATAMI and A. SABOORI and H. ALLAHYARI and A. ASHOURI},
title = {Predation by Allothrombium pulvinum on the spider mites Tetranychus urticae and Amphitetranychus viennensis: predation rate, prey preference and functional response},
journal = {Experimental and Applied Acarology},
year = {2005},
volume = {37},
number = {1},
month = {July},
issn = {0168-8162},
pages = {173--181},
numpages = {8},
keywords = {Key words: Allothrombium pulvinum; Amphitetranychus viennensis; Functional respone; Prey preference; Tetranychus urticae},
}

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%0 Journal Article
%T Predation by Allothrombium pulvinum on the spider mites Tetranychus urticae and Amphitetranychus viennensis: predation rate, prey preference and functional response
%A Hosseini, Mojtaba
%A B. HATAMI
%A A. SABOORI
%A H. ALLAHYARI
%A A. ASHOURI
%J Experimental and Applied Acarology
%@ 0168-8162
%D 2005

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