Antifeedant effects of several plant extracts on Colorado potato beetle larvae

J. Kutas; M. Nádasy

doi:10.1556/aphyt.40.2005.3-4.17

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Acta Phytopathologica et Entomologica Hungarica

Volume/Issue:: Volume 40: Issue 3-4

Antifeedant effects of several plant extracts on Colorado potato beetle larvae

Authors:

J. Kutas

J. Kutas Department of Agricultural Entomology, Plant Protection Institute, Georgikon Faculty of Agriculture, University of Veszprém H-8361 Keszthely, P.O. Box 71, Hungary

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M. Nádasy

M. Nádasy Department of Agricultural Entomology, Plant Protection Institute, Georgikon Faculty of Agriculture, University of Veszprém H-8361 Keszthely, P.O. Box 71, Hungary

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Pages:: 355–365

Online Publication Date:: 18 Jan 2006

Publication Date:: 01 Dec 2005

Article Category:: Journal Article

DOI:: https://doi.org/10.1556/aphyt.40.2005.3-4.17

Keywords:: feeding inhibition; feeding inhibition; behavioural pattern; Leptinotarsa decemlineata; Ajuga chamaepitys; Matricaria inodora

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The antifeedant activities of methanolic extracts made from seven plant species (Abutilon theophrasti Medic., Ajuga chamaepitys (L.) Schreb., Amorpha fruticosa L., Matricaria chamomilla L., Matricaria inodora L., Tanacetum vulgare L. and Tilia cordata Mill.) were assessed in the laboratory at 0.5% and 5% dosages against Colorado potato beetle (Leptinotarsa decemlineata Say) larvae. Three h and 24 h dual-choice and 3 h no-choice feeding bioassays were carried out with potato (Solanum tuberosum L.) leaf discs. Furthermore, during the no-choice test direct observations on larval behaviour were performed to help to distinguish the mode of action which underlies inhibition of feeding. At a dosage of 0.5% no plant extract deterred feeding of larvae. At 5% Matricaria inodora (and our standard Ajuga chamaepitys with well-known antifeedant properties) was the most potent antifeedant of the seven extracts tested. Antifeedant indexes and results of the behavioural observations suggest that M. inodora acts as a sensory mediated feeding deterrent, rather than as a toxin.

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Acta Phytopathologica et Entomologica Hungarica

Print ISSN:: 0238-1249

Online ISSN:: 1588-2691

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Jenő KONTSCHÁN Centre for Agricultural Research, Hungary

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Ágnes TURÓCI Centre for Agricultural Research, Hungary

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K SALÁNKI Centre for Agricultural Research, Hungary

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Z BOZSÓ Centre for Agricultural Research, Hungary

PE CHETVERIKOV Saint-Petersburg State University, Russia

JX CUI Henan Institute of Science and Technology, China

J FODOR Centre for Agricultural Research, Hungary

Z IMREI Centre for Agricultural Research, Hungary

BM KAYDAN Çukurova University, Turkey

L KISS University of Southern Queensland, Australia

V MARKÓ Hungarian University of Agriculture and Life Sciences, Hungary

MW NEGM Ibaraki University, Japan

L PALKOVICS Széchenyi István University, Hungary

M POGÁNY Centre for Agricultural Research, Hungary

D RÉDEI National Chung Hsing University, Taiwan

A TOLSTIKOV University of Tyumen, Russia

J VUTS Rothamsted Research, UK

GQ WANG Guangxi University, China

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Acta Phytopathologica et Entomologica Hungarica
Language	English
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