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Please use this identifier to cite or link to this item: http://hdl.handle.net/10373/272

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Title: Host plant recognition by the root feeding clover weevil, Sitona lepidus (Coleoptera: Curculionidae)
Authors: Johnson, S. N.
Gregory, P. J.
Murray, P. J.
Zhang, Xiaoxian
Affiliation: University of Abertay Dundee. Scottish Informatics, Mathematics, Biology and Statistics Centre
Keywords: Larvae
Weevil
Issue Date: Oct-2004
Publisher: Cambridge University Press
Type: Journal Article
Refereed: peer-reviewed
Rights: Published version (c)2004 Cambridge University Press available from doi:10.1079/BER2004317
Citation: Johnson, S.N. et al. 2004. Host plant recognition by the root feeding clover weevil, Sitona lepidus (Coleoptera: Curculionidae). Bulletin of Entomological Research. 94(5). pp.433-439. Available at doi:10.1079/BER2004317
Abstract: This study investigated the ability of neonatal larvae of the root-feeding weevil, Sitona lepidus Gyllenhal, to locate white clover Trifolium repens L. (Fabaceae) roots growing in soil and to distinguish them from the roots of other species of clover and a co-occurring grass species. Choice experiments used a combination of invasive techniques and the novel technique of high resolution X-ray microtomography to non-invasively track larval movement in the soil towards plant roots. Burrowing distances towards roots of different plant species were also examined. Newly hatched S. lepidus recognized T. repens roots and moved preferentially towards them when given a choice of roots of subterranean clover, Trifolium subterraneum L. (Fabaceae), strawberry clover Trifolium fragiferum L. (Fabaceae), or perennial ryegrass Lolium perenneL. (Poaceae). Larvae recognized T. repens roots, whether released in groups of five or singly, when released 25 mm (meso-scale recognition) or 60 mm (macro-scale recognition) away from plant roots. There was no statistically significant difference in movement rates of larvae.
URI: http://hdl.handle.net/10373/272
ISSN: 1475-2670
Appears in Collections:SIMBIOS Collection

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