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Veterinary information to support practice, based on evidence and continuing education

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Abstract

From 1907 when the fever tick eradication campaign began until 1933, the tick eradication methods of dipping cattle in an acaricide or "pasture vacation" were enormously successful in eradicating southern cattle ticks [Rhipicephalus (Boophilus) microplus (Canestrini)], until failures began to occur ...

Author(s)
Pound, J. M.; George, J. E.; Kammlah, D. M.; Lohmeyer, K. H.; Davey, R. B.
Publisher
Entomological Society of America, Lanham, USA
Citation
Journal of Economic Entomology, 2010, 103, 2, pp 211-218
Abstract

The efficacy of an injectable microsphere formulation of ivermectin for control of B. annulatus was tested on 2 groups of 6 Hereford heifers held on separate 7-ha, tick-infested pastures in Texas, USA. Cattle in one pasture were injected subcutaneously in the neck with a controlled-release...

Author(s)
Miller, J. A.; Davey, R. B.; Oehler, D. D.; Pound, J. M.; George, J. E.; Ahrens, E. H.
Citation
Journal of Economic Entomology, 1999, 92, 5, pp 1142-1146
Abstract

An 11.6% emulsifiable concentrate of phosmet (Prolate) was evaluated in a dipping vat to determine its stability and other characteristics pertaining to management of the product in a vat in which large numbers of cattle were processed (in Texas, USA). A separate trial was done to determine...

Author(s)
Ahrens, E. H.; Davey, R. B.; George, J. E.; Pemberton, J. R.
Citation
Southwestern Entomologist, 1995, 20, 3, pp 335-340
Abstract

Strict enforcement of cattle quarantine, developed during the national cattle fever tick eradication campaign, blocked the reintroduction and dissemination of Boophilus microplus and B. annulatus northwards from southern Texas. However, reliance on coumaphos dips and pasture vacation was now...

Author(s)
George, J. E.
Citation
Proceedings of the Annual Meeting of the United States Animal Health Association, 1996, 100, pp 196-206
Abstract

A long-term field study (60 consecutive weeks in 1996-97) was conducted to determine whether a B. annulatus population could be eradicated through repeated applications of a 1% pour-on formulation of fipronil on cattle held in an infested pasture in Texas, USA. Animals treated repeatedly over time...

Author(s)
Davey, R. B.; George, J. E.; Hunter, J. S., III; Jeannin, P.
Citation
Experimental & Applied Acarology, 1999, 23, 4, pp 351-364
Abstract

A variety of pathways exist for the introduction of nonindigenous insects, ticks, and mites of veterinary importance into the United States. The most prominent includes the natural migration of mosquitoes and flies by the flight of adults, ectoparasites entering the country on wildlife transport...

Author(s)
Bram, R. A.; George, J. E.
Publisher
Entomological Society of America, Lanham, USA
Citation
Journal of Medical Entomology, 2000, 37, 1, pp 1-8
Abstract

A study was done in Mission, Texas, to determine the efficacy of a 50% wettable powder (WP) amitraz formulation applied as a whole-body spray in a standard dip vat, and in a laboratory bioassay against B. annulatus on cattle. A study also was done at the King Ranch in Kleberg County, Texas, to...

Author(s)
Ahrens, E. H.; Davey, R. B.; George, J. E.; Cooksey, L. M.
Citation
Journal of Economic Entomology, 1989, 82, 3, pp 850-853
Abstract

The pyrethroid Bayticol (flumethrin) was tested as a pour-on and whole-body spray for the control of Boophilus annulatus on cattle in Texas. Each animal in the untreated, pour-on and spray treatment groups were infested with larvae, nymphs and adults at the time of treatment. Based upon the index...

Author(s)
Ahrens, E. H.; Davey, R. B.; George, J. E.; Cooksey, L. M.
Citation
Journal of Economic Entomology, 1988, 81, 4, pp 1133-1136
Abstract

A bimodal, diurnal rhythm of detachment was observed for engorged females of B. annulatus fed on Hereford heifers confined in individual stalls in an open-sided barn and exposed to ambient climate and light. In 3 experiments during which hosts were fed each morning and evening, a morning period of...

Author(s)
George, J. E.; Pound, J. M.; Davey, R. B.
Citation
Journal of Medical Entomology, 1998, 35, 4, pp 479-482
Abstract

Cattle infested with all parasitic life-stages of Boophilus microplus and B. annulatus were sprayed with 0.0125 or 0.025% active ingredient amitraz. The detachment pattern of engorged or partially engorged females indicated that both concentrations of amitraz caused premature detachment, with at...

Author(s)
Davey, R. B.; Ahrens, E. H.; George, J. E.
Citation
Preventive Veterinary Medicine, 1984, 2, 5, pp 691-698

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