Open AccessControl of Face Flies and Horn Flies on Pastured Dairy Heifers with Pyrethroid Ear Tags Or Tapes, 1986
Author(s) -
R. W. Miller
Publication year - 1988
Publication title -
insecticide and acaricide tests
Language(s) - English
Resource type - Journals
ISSN - 0276-3656
DOI - 10.1093/iat/13.1.402
Subject(s) - herd , french horn , biology , haematobia irritans , head (geology) , zoology , veterinary medicine , medicine , muscidae , psychology , stomoxys , pedagogy , paleontology
Ear tag efficacy trials were conducted on pastured herds (15-40 head/herd) of dairy heifers in Howard and Carroll counties, Maryland. Two herds received no treatment and served as checks. Six other herds (2/treatment) were tagged as follows: Guardian® ear tags, 2/head, attached 3 and 8 May; Duo Deckem® ear tags, 2/head, attached 30 May and 6 Jun; and Atroban® ear tags, 2/head, attached 1 Apr and 7 Jun. A ninth herd had an Ectiban® ear tape attached to one identification ear tag on each of ca. 40 heifers on 10 May. Treatment efficacy was determined by counting weekly the number of face flies/face and horn flies/ side of 15 animals.
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