IVERMECTIN CATTLE POUR-ON - DURATION OF A SINGLE LATE SPRING TREATMENT AGAINST HORN FLIES, HAEMATOBIA-IRRITANS (L) (DIPTERA, MUSCIDAE) IN MISSOURI, USA

Authors
MARLEY SE HALL RD CORWIN RM
Citation
Se. Marley et al., IVERMECTIN CATTLE POUR-ON - DURATION OF A SINGLE LATE SPRING TREATMENT AGAINST HORN FLIES, HAEMATOBIA-IRRITANS (L) (DIPTERA, MUSCIDAE) IN MISSOURI, USA, Veterinary parasitology, 51(1-2), 1993, pp. 167-172
Citations number
29
Categorie Soggetti
Parasitiology,"Veterinary Sciences
Journal title
Veterinary parasitology → ACNP
ISSN journal
03044017
Volume
51
Issue
1-2
Year of publication
1993
Pages
167 - 172
Database
ISI
SICI code
0304-4017(1993)51:1-2<167:ICP-DO>2.0.ZU;2-W
Abstract
Late spring treatment of cattle with a single dose of pour-on ivermect in (0.5 mg kg-1 body weight) resulted in reduced horn fly populations for approximately 6 weeks, with percentage efficacy exceeding 80% for at least 26 days post-treatment. Bioassay with house flies of dung fro m treated cattle demonstrated suppression of fly emergence for 11 days post-treatment. The subsequent increase in horn fly numbers on the tr eated herd was predicted by a developmental rate equation interpreted by the time of cessation of larval fly inhibition in field dung.