Results 201 to 210 of about 136,340 (252)

The pH Tolerance of Horn Fly Larvae

Journal of Economic Entomology, 1966
In formulating artificial diets or rearing media for insect larvae, or in modifying natural larval media in attempts to regulate the insect population, the pH tolerance of the 1st-instar larvae must be determined to establish the optimum range for survival and also the conditions preventing production of larvae.
N. O. Morgan, C. D. Schmidt
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Development of Stephanofilaria stilesi in the Horn Fly

The Journal of Parasitology, 1966
Stephanofilaria stilesi Chitwood, 1934, uses the horn fly, Haematobia irritans (L.), as an intermediate host. Filarioid larvae found in 455 of 3,707 female flies and six of 2,234 male flies collected from cattle having stephanofilariasis were morphologically identical to the immature forms of S. stilesi recovered from stephanofilarial lesions.
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Horn Fly Control Studies in Mississippi, 1961

Journal of Economic Entomology, 1963
Five different studies on the application of insecticides to cattle for horn fly ( Haematobia irritans (L.)) control were conducted in Mississippi during 1961. Residual pen sprays of 0.25% Sevin®(l-naphthyl N -methylcarbamate) wettable powder remained effective longer than the sprayable formulation, but even the wettable powder controlled flies for ...
R. A. Hoffman, R. H. Roberts
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Managing the Horn Fly (Diptera: Muscidae) Using an Electric Walk-Through Fly Trap

Journal of Economic Entomology, 2002
An electric walk-through fly trap was evaluated for the management of the horn fly, Hematobia irritans (L.), on dairy cattle in North Carolina over 2 yr. The trap relies on black lights and electrocution grids to attract and kill flies that are brushed from the cattle passing through. During the first season, horn fly densities were reduced from >1,400
D W, Watson, S M, Stringham, S S, Denning, S P, Washburn, M H, Poore, A, Meier   +5 more
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Cattle, Face Fly and Horn Fly Tests with Ear Tags, 1980

Insecticide and Acaricide Tests, 1981
Abstract Four mixed breed beef herds of cattle in Owen County were treated with either 10% Atroban ear tags or 13.7% Rabon ear tags on May 15. In Fayette County five heards of mixed breed beef herds were treated with either 8% Ectrin ear tags, 13.7% Rabon ear fags, or a 1% Rabon dustbag-1% Ravap backrubber combination treatment on May 20.
Freddie Herald, F. W. Knapp
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Horn Fly Control with Topically Applied Ivermectin

American Association of Bovine Practitioners Conference Proceedings, 1992
The adult stage of the horn fly, Haematobia irritans (L.) is a permanent haematophagus parasite of cattle throughout the United States. Populations may exceed 1,000 flies per animal in some areas. Nationally, the loss due to this ectoparasite is estimated to be 730 million dollars per year (1).
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Beef Cattle, Face Fly and Horn Fly Control with Various Insecticides, 1983

Insecticide and Acaricide Tests, 1984
Abstract Various insecticides and application methods were evaluated for face fly and horn fly control on beef cattle. May through Sep., 1983, in Montgomery Co., Va. Herds and treatments were as follows: (1) Ectiban ear tapes applied 24 May to 16 mixed breed heifers.
James E. Roberts, Michael Saluta
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Cattle, Atroban Ear Tags for Face Fly and Horn Fly Control, 1982

Insecticide and Acaricide Tests, 1983
Abstract Five Atroban permethrin ear tag formulations were tested on beef cattle for face fly and horn fly control. These differed as to the DOP plasticizer percentages, permethrin concentration, cis:trans isomer ratio and dyes. They were compared on mixed cow-calf herds ranging in size from 23 to 35 cows. Only the cows were treated with
Freddie Herald, F.W. Knapp
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DIAPAUSE INDUCTION IN THE HORN FLY (DIPTERA: MUSCIDAE)

The Canadian Entomologist, 1994
AbstractLaboratory studies of diapause induction in the horn fly Haematobia irritans irritans (L.) indicated that the incidence of diapause was unrelated to daylength or the number of day–night cycles. Transfer experiments were conducted to estimate the beginning and end of diapause sensitivity and the required number of days for diapause induction. On
T.J. Lysyk, R.D. Moon
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Control of the Face Fly and Horn Fly on Beef Cattle, 1982

Insecticide and Acaricide Tests, 1983
Abstract Several insecticides and application methods were evaluated Jun through Sep on 5 separate herds of beef cattle, located in Montgomery Co, Blacksburg, VA. Herd no 1 consisted of ca 20 mixed breed heifers and cows with calves, treated with a burlap backrubber and a mineral feeder type burlap facerubber, charged with 1 pt Ravap EC ...
James E. Roberts, Michael Saluta
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