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The Veterinary Record, Vol 120, Issue 26, 612-614
Copyright © 1987 by British Veterinary Association

Papers & Articles

Control of headfly on sheep

AJ Wright, DB Nichols, and JA Badcock

Eighteen different treatments against sheep headfly (Hydrotaea irritans) were tested on Scottish blackface and Swaledale ewes and lambs. Gamma-HCH + paradichlorobenzene gave consistently better control than crotoxyphos cream. Pyrethroids in sprays or incorporated into eartags were relatively ineffective. Pyrethroid pour-ons gave good control, but in a year of low headfly attack they were not as effective as HCH + paradichlorobenzene. Liveweight gain was improved by treatment with HCH + paradichlorobenzene and significantly improved by treatment with deltamethrin pour-on.




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Copyright © 1987 British Veterinary Association