Zobrazeno 1 - 10 of 53 pro vyhledávání: '"D. E. Hopkins"'
2
Methoprene for Control of Horn Flies: A Suppression Program on the Island of Molokai, Hawaii13
Autor: J. L. Eschle, D. E. Hopkins, Fred C. Wright, Jesse J. Matter, John A. Miller
Publikováno v: Journal of Economic Entomology. 70:417-423
In an island-wide program, we evaluated methoprene in the drinking water of cattle to suppress a population of Haemalobia irritans (L.) preparatory to the release of sterile males. The treatment resulted in an avg 83% suppression of horn flies and a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2f9bc52e8590369931471b30c56c0552
https://doi.org/10.1093/jee/70.4.417
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3
Effect of Sheep Breed and Sex on Accumulation and Depletion of Ronnel in Fat
Autor: D. E. Hopkins, L. M. Hunt, B. N. Gilbert
Publikováno v: Journal of Animal Science. 50:630-633
When four breeds of sheep were dipped in .25% ronnel for control of sheep-biting lice, Bovicola ovis (Schrank), the differences in residues in the fat were highly significant for breed, sex, day X breed and day X sex interactions.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d3393dfc6c2773df3cb9ed4072a4667
https://doi.org/10.2527/jas1980.504630x
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4
Compounds Related to Juvenile Hormone. Exceptional Activity of Arylterpenoid Compounds in Four Species of Flies1
Autor: James E. Wright, D. E. Hopkins, W. F. Chamberlain, R. W. Miller, Meyer Schwarz
Publikováno v: Journal of Economic Entomology. 67:598-601
Six arylterpenoid juvenile hormone mimics were prepared and tested in the laboratory against the house fly, Musca domestica L., the face fly, Musca autumnalis De Geer, the stable fly, Stomoxys calcitrans (L)., and the horn fly, Haematobia irritans (L
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::17b503e0c8bafd9c66965b8ee4e62d1c
https://doi.org/10.1093/jee/67.5.598
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6
Retention of Larval Dietary 32P in the Malpighian Tubules of Adult Stomoxys calcitrans,1 Haematobia irritans,1 and Cochliomyia macellaria23
Autor: W. F. Chamberlain, D. E. Hopkins
Publikováno v: Annals of the Entomological Society of America. 73:310-314
When 32P-labeled orthophosphate was fed to the larvae of the stable fly, Stomoxys calcitrans (L.), the difference in retention of the label by the males and females made it possible to achieve 100% separation of the sexes during the pupal stage. When
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1daa4422000835bd39ed57a254ab6e0c
https://doi.org/10.1093/aesa/73.3.310
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9
Metabolism of P32-Delnav in Cattle
Autor: P. E. Gatterdam, D. E. Hopkins, W. F. Chamberlain
Publikováno v: Journal of Economic Entomology. 53:672-675
Radiolabeled Delnav® (2,3- p -dioxanedithiol S,S-bis ( O, O - diethyl phosphorodithioate)) was applied to steers dermally and orally. Analyses of blood, urine, and feces indicated that the insecticide was rapidly metabolized and excreted. After 7 da
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5dba358f4901d914474d7bad6ff1e545
https://doi.org/10.1093/jee/53.4.672
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10
Cattle Biting Louse: Evaluation of Compounds for Juvenile Hormone Activity. 2. Hormonal and Toxic Effects13
Autor: W. F. Chamberlain, Meyer Schwarz, D. E. Hopkins
Publikováno v: Journal of Economic Entomology. 66:703-706
Of 70 compounds related to the cecropia juvenile hormone that previously showed juvenile hormone activity against 1 or more species of insects, 4 (and also the standard) caused Bovicola bovis (L.) to retain nymphal characteristics in the 4th (normall
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d31a76a7b11b5a5a5066046679d1aa50
https://doi.org/10.1093/jee/66.3.703
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