Efficacy of some insecticides for control of the horn fly
Keywords:Haematobia irritans, Insecticides, Cattle
The efficacy of pour-on formulations of alpha-cypermethrin, and spray formulations of either alpha-cypermethrin alone or cypermethrin combined with chlorfenvinphos, as well of chlorfenvinphos alone, was evaluated for the control of horn flies on grazing beef cattle. Fly population was monitored throughout 42 days post-treatment. The trial indicated that all used treatments provided at least a 90% reduction of horn (lies over six week study and. at present, should be considered as useful weapons for the control of Haematobia irritans in Brazil.
How to Cite
The journal content is authorized under the Creative Commons BY-NC-SA license (summary of the license: https://