Evaluation of pyrethroid ear tag and spray treatment of cattle against horse flies (Diptera: Tabanidae)

Publication Type:Journal Article
Year of Publication:1991
Authors:D. J. Leprince, Foil, L. D., Byford, R. L.
Journal:Journal of Entomological Science
Volume:26
Pagination:271-280
Date Published:1991
Keywords:Cattle, Control, Insecticides, Louisiana, Tabanidae, Tabanus lineola, Tabanus pallidescens, Tabanus wilsoni, USA
Abstract:

Permethrin and fenvalerate ear tags, and fenvalerate sprays (0.01 and 0.02%) were evaluated against tabanids under field conditions in Louisiana (USA). Residual concentration of insecticide in the hair from the head, side, back, abdomen, front and back legs of steers was measured after each fly collection period by gas chromatography. Mortality rates were reported relative to the feeding pattern of species of tabanids studied and insecticide concentration of different body regions. A total of 2,922 females belonging to three Tabanus species were collected. Mortality rates were 3% in controls, 9% in permethrin tag, 15% in fenvalerate tag, 67% in 0.01% fenvalerate spray and 79% in 0.02% fenvalerate spray treatments.

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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith