Efficacy of chlorfenapyr (AC 303630) experimental pour-on and CyLence formulations against naturally acquired louse infestations on cattle in New York

Publication Type:Journal Article
Year of Publication:2001
Authors:P. E. Kaufman, Rutz, D. A., Doscher, M. E., Albright, R.
Journal:Veterinary Parasitology
Volume:97
Issue:2
Pagination:123 - 129
Date Published:2001
Keywords:Anoplura, Bovicola, Calves, capillatus, cattle, chewing lice, Haematopinidae, lepidoptera, lice, Linognathus, little, longnosed, louse, Mallophaga, noctuidae, Solenopotes, susceptibility, trichodectidae
Abstract:

The four chlorfenapyr formulations examined provided 100% control of both the nymphal and adult stages of naturally acquired Bovicola bovis (L.) on cattle up to 35 days after application. Treatment with 6 mg chlorfenapyr per kg BW in a 0.12 mi per kg BW formulation was as effective as treatment with CyLence(TM) (cyfluthrin) in controlling naturally acquired Solenopotes capillatus (Enderlein) on cattle for 35 days. Percent reduction was never greater than 90% with any chlorfenapyr application against Linognathus vituli (L.). However, percent reduction was greater than 90% with CyLence(TM) from day 21 through 35. No adverse effects were noted on cattle from any of the chlorfenapyr dosages used. (C) 2001 Elsevier Science B.V. All rights reserved.

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