Open AccessEar Tags (CIODRIN, SUPONA) for Control of Horn Flies on Beef Cattle, Alabama, 1983
Author(s) -
Gary R. Mullen,
L. A. Smith
Publication year - 1984
Publication title -
insecticide and acaricide tests
Language(s) - English
Resource type - Journals
ISSN - 0276-3656
DOI - 10.1093/iat/9.1.425
Subject(s) - herd , breed , zoology , haematobia irritans , french horn , veterinary medicine , biology , medicine , botany , muscidae , stomoxys , psychology , pedagogy
Two experimental, insecticide-impregnated plastic ear tags, one containing 16% Ciodrin and the other 16% Supona, were evaluated. Six cow-calf herds of 23 to 26 mixed-breed animals of similar breed composition were tagged while a seventh herd served as an untreated check. Treatments consisted of three herds with Ciodrin tags and three groups with Supona tags. All cows in each test group received two tags. Ear tags were installed during the second week of Jun. following pretreatment horn fly counts on 6 Jun. Weekly fly counts were made for 16 weeks from 6 Jun. to 26 Sep. Counts were made by vusual inspection using binoculars with the number of flies/side recorded for 10 cows in each herd. Herds were rotated on pastures of similar foliage approximately monthly to minimize differences due to location.
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