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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Behavioural responses of the maize weevil, Sitophilus zeamais, to host (stored-grain) and non-host plant volatiles
Pest Management Science, Volume 66, No. 1, Year 2010
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Description
BACKGROUND:Four-arm olfactometer bioassays were conducted to assess the behavioural responses of the adult maize weevil, Sitophilus zeamais (Motschulsky) (Coleoptera: Curculionidae), to harvested seeds of host plants, i.e. white maize, yellow maize (Zea mays L.) and winter wheat (TriticumaestivumL.) (Poaceae), and non-host plant materials, i.e. alligator pepper, Aframomum melegueta (Rosk) K. Schum (Zingiberaceae), rhizomes of ginger, Zingiber officinale (Roscoe) (Zingiberaceae), and West African black pepper, Piper guineense Thonn and Schum (Piperaceae). Additional bioassays with host plant volatiles were conducted in the presence of three doses of non-host plant materials. RESULTS: Both sexes of the weevil showed strong attraction to maize and wheat seed volatiles, but were significantly repelled (P < 0.001) by odours from A.melegueta, Z.officinaleand P.guineense. Furthermore, S.zeamais avoided maize andwheat seeds presented in combination with the non-host plant material at 10% (w/w) and 33% (w/w) levels. CONCLUSIONS: A. melegueta, Z. officinale and P. guineense have the potential for use in the protection of stored grains by resource-poor farmers with local access to these plants. © 2009 Society of Chemical Industry.
Authors & Co-Authors
Ukeh, Donald Agioliwhu
United Kingdom, Aberdeen
University of Aberdeen
Nigeria, Calabar
University of Calabar
Birkett, Michael Alexander
United Kingdom, Harpenden
Rothamsted Research
Bruce, Toby J.A.
United Kingdom, Aberdeen
University of Aberdeen
Allan, Eunice J.
United Kingdom, Aberdeen
University of Aberdeen
Pickett, John Anthony
United Kingdom, Harpenden
Rothamsted Research
Jennifer Mordue, A.
United Kingdom, Aberdeen
University of Aberdeen
Statistics
Citations: 60
Authors: 6
Affiliations: 3
Identifiers
Doi:
10.1002/ps.1828
ISSN:
1526498X
e-ISSN:
15264998
Research Areas
Health System And Policy