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Pyrethroid treatment of cattle for tsetse control : reducing its impact on dung fauna
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Vale, Glyn A., Hargrove, John W., Chamisa, Andrew, Grant, Ian F. and Torr, Stephen J. (2015) Pyrethroid treatment of cattle for tsetse control : reducing its impact on dung fauna. PLoS Neglected Tropical Diseases, Volume 9 (Number 3). Article number e0003560. doi:10.1371/journal.pntd.0003560
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Official URL: http://dx.doi.org/10.1371/journal.pntd.0003560
Abstract
Background:
African trypansomiases of humans and animals can be controlled by attacking the vectors, various species of tsetse fly. Treatment of cattle with pyrethroids to kill tsetse as they feed is the most cost-effective method. However, such treatments can contaminate cattle dung, thereby killing the fauna which disperse the dung and so play an important role in soil fertility. Hence there is a need to identify cost-effective methods of treating cattle with minimal impact on dung fauna.
Methodology/Principal Findings:
We used dung beetles to field bioassay the levels of dung contamination following the use of spray and pour-on formulations of deltamethrin, applied to various parts of the body of cattle in Zimbabwe. Results suggested that dung was contaminated by contact with insecticide on the body surface as the cattle defecated, and by ingestion of insecticide as the cattle licked themselves. Death of dung beetles was reduced to negligible levels by using only the spray and applying it to the legs and belly or legs alone, i.e., places where most tsetse feed.
Conclusion/Significance:
The restricted applications suitable for minimising the impact on dung fauna have the collateral benefits of improving the economy and convenience of cattle treatments for tsetse control. The demonstration of collateral benefits is one of the surest ways of promoting environmentally friendly procedures.
| Item Type: | Journal Article | ||||||||
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| Subjects: | S Agriculture > SF Animal culture | ||||||||
| Divisions: | Faculty of Medicine > Warwick Medical School > Health Sciences Faculty of Medicine > Warwick Medical School > Health Sciences > Population, Evidence & Technologies (PET) Faculty of Medicine > Warwick Medical School |
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| Library of Congress Subject Headings (LCSH): | Tsetse-flies -- Control, Cattle -- Trypanotolerance, Cattle -- Infections | ||||||||
| Journal or Publication Title: | PLoS Neglected Tropical Diseases | ||||||||
| Publisher: | Public Library of Science | ||||||||
| ISSN: | 1935-2727 | ||||||||
| Official Date: | 4 March 2015 | ||||||||
| Dates: |
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| Volume: | Volume 9 | ||||||||
| Number: | Number 3 | ||||||||
| Number of Pages: | 11 | ||||||||
| Article Number: | Article number e0003560 | ||||||||
| DOI: | 10.1371/journal.pntd.0003560 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Open Access | ||||||||
| Funder: | Great Britain. Department for International Development, Research Councils UK (RCUK), Biotechnology and Biological Sciences Research Council (Great Britain) (BBSRC), United Nations Development Programme, World Bank, World Health Organization (WHO) | ||||||||
| Grant number: | R7539 (DFID), R7987 (DFID), no.BB/L019035/1 (BBSRC) |
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