We at Parman Farm Supply have researched the best options for not only controlling flies but also Pink Eye, Lice, Ticks, Mosquitoes and other pests. We have done this so as soon as you put your livestock on pasture or for those who need year round protection can get the control they need.
We have found it is best to mix permethrin and pyrethrin with #1 diesel or kerosene to get the best results for your investment.
Permethrin 10% mixes at a ratio of 1 quart permethrin to 20 gallons of #1 diesel or kerosene.
We sell it in a 1 quart bottle $ 18.50+shipping or a 1 gallon Jug (best deal) $70.00.+shipping