Results 201 to 210 of about 5,822 (259)

Distribution of horn flies on individual cows as a percentage of the total horn fly population

Veterinary Parasitology, 2003
Twenty-three mixed-breed herd cows were phenotyped for their ability to serve as a suitable host for Haematobia irritans, the horn fly. Based upon consistent observations within the lower quartile or upper quartile of individual fly counts, four cows were phenotyped as low carriers and five cows were phenotyped as high carriers of horn flies.
John H Pruett, John E George, C D Steelman   +2 more
exaly   +3 more sources

Variation in the load of the horn fly, Haematobia irritans, in cattle herds is determined by the presence or absence of individual heifers [PDF]

Medical and Veterinary Entomology, 2004
The distribution of horn flies, Haematobia irritans (L.) (Diptera: Muscidae), in herds of Danish Holstein-Friesian cattle was investigated in two studies conducted during two field seasons.
Michael A Birkett, John A Pickett, Lester J Wadhams   +2 more
exaly   +2 more sources

Efficacy of doramectin 0.5% w/v Pour-On for control of the horn fly, Haematobia irritans [PDF]

Veterinary Parasitology, 2000
In 1998, three groups of cattle at three locations in Lousiana were treated with Dectomax(®) (0.5% doramectin) Pour-On and horn fly populations were monitored.
L D Foil
exaly   +2 more sources

Relationship of horn fly to face fly infestation in beef cattle

Journal of Animal Science, 1994
Horn fly and face fly counts (n = 394) taken on 194 beef cows representing seven breed groups were used to determine the effects of horn fly and face fly counts. Breed groups included were Angus (ANI and ANII), Chianina (CA), Charolais (CH), Hereford (HH), Polled Hereford (PH), and Red Poll (RP). The breed group designated ANI consisted of small-framed
A H, Brown, Z B, Johnson, R B, Simpson, M A, Brown, C D, Steelman, C F, Rosenkrans   +5 more
openaire   +2 more sources

Azadirachtin as a Larvicide Against the Horn Fly, Stable Fly, and House Fly (Diptera: Muscidae)

Journal of Economic Entomology, 1989
Effects of azadirachtin, a triterpenoid extracted from neem seed, Azadirachta indica A. Juss., were similar to those of insect growth regulators against the immature stages of the born fly, Haematobia irritans (L.), the stable fly, Stomoxys calcitrans (L.), and the house fly, Musca domestica L.
J A, Miller, W F, Chamberlain
openaire   +2 more sources