Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 428492
Title Culicoides species associated with sheep in The Netherlands and the effect of a permethrin insecticide
Author(s) Griffioen, K.; Gemst, D.B.J.; Pieterse, M.C.; Jacobs, F.H.H.; Oldruitenborgh-Oosterbaan, M.M.S.
Source The Veterinary Journal 190 (2011)2. - ISSN 1090-0233 - p. 230 - 235.
DOI http://dx.doi.org/10.1016/j.tvjl.2010.10.016
Department(s) PRI BIOINT Ecological Interactions
PE&RC
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) bluetongue virus serotype-8 - northern europe - transplacental infection - diptera-ceratopogonidae - northeastern spain - obsoletus complex - carbon-dioxide - climate-change - cattle - vectors
Abstract Culicoides spp. act as vectors for a number of viral diseases of animals including bluetongue in sheep. The aims of this study were to determine: (1) which Culicoides spp. are associated with sheep in The Netherlands; (2) the time of the day when they are most active; and (3) the effect of treatment of animals with a permethrin insecticide. Two pairs of sheep were each housed within mosquito tents of either one or two layers of netting and all trapped Culicoides spp. were identified microscopically. For the permethrin insecticide study, one of two pairs of sheep was treated with 3.6% permethrin and all animals were housed in tents of similar design. Of the 6210 midges captured, 54.1% were identified as C. chiopterus and 42.7% as C. obsoletus. C imicola was not identified. The average insect feeding rate was 35-40% and midge activity was greatest around sunset. Permethrin treatment reduced the number of midges captured by 50% and also resulted in a decrease in the percentage of midges that had fed. The findings provide useful information on the behaviour and distribution of Culicoides spp. that will facilitate the development of appropriate control strategies to minimise the risk of insect-vector borne virus diseases such as bluetongue. (C) 2010 Elsevier Ltd. All rights reserved.
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