Haematobia irritans

The horn fly Haematobia irritans an important bloodsucking pest of catde, was found to be completely controlled by ear tags which slowly released permethrin and fenvalerate. These were found to give almost 100% control for 24 weeks. However, following almost universal appHcation of this ideal control measure, control failures of the pyrethroid insecticides were widely reported in North America in 1982 ndash 1983 and the practice is now abandoned. 

Scott, T.W., R.W. Miller, and F.W. Knapp. 1986. Field evaluation of diflubenzuron boluses with and without flucythrinate ear tags for control of horn flies, Haematobia irritans and face flies, Musca autumnalis, on pastured cattle. Jour. Agricul. Entomol. 3 105-113. 

Haematobia irritans) were controlled in manure of cattle fed famphur at 2.5 to 5.0 mg/kg BW daily (Ivey et al. 1976). Manure of treated cows contained low concentrations of famphur (as much as 0.14 mg/kg FW) 1 day after diet cessation, but residues were nondetectable thereafter (Henny etal. 1985). 

Haufe, W.O. 1982. Growth of range cattle protected from horn flies (Haematobia irritans) by ear tags impregnated with fenvalerate. Canad. Jour. Anim. Sci. 62 567-573. 

Haematobia irritans, Hydrotaea irritans, Stomoxys calcitrans, Musca domestica, M. autumnalis... 

FIGURE 12.10. Relationships among Brazilian populations of Haematobia irritans based on principal components after the exclusion of the outliers. Reprinted with permission from Reference 63. 

Cattle lice Haematopinus spp.) were controlled when the equivalent of 2.5 mg famphur/kg BW in diets was fed to cattle for at least 30 days or 40.5 mg/kg BW were applied as a topical pour-on. Famphur was used in 1971 to control cattle lice at pour-on applications equivalent to 15.0-35.0 mg/kg BW. Pour-on treatments of Australian yearling heifers were especially effective in controlling the long-nosed cattle louse (Linognathus vituli) and the short-nosed cattle louse (Haematopinus eurysternus)-, untreated heifers grew more slowly than famphur-treated heifers. Larvae of the homfly (Haematobia irritans) were controlled in manure of cattle fed famphur at 2.5-5.0 mg/kg BW daily. Manure of treated cows contained low concentrations of famphur (as much as 0.14 mg/kg FW) 1 day after diet cessation, but residues were imdetectable thereafter. 

Haemangiomas, 1444 Haematobia irritans, 4069 Haematological maligances, 1313 Haermtopinus... 

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