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Faunsdale, AL | Problem is the worst ones (stable flies that bite and house flies that are just pests) aren't strictly manure breeding flies, so it's hard to get a high enough dose of the larvacides in the wet bedding, shavings, straw, rotting bottom of round bales etc that the stable flies breed in (or general filth that the house flies like) to stop them.
Couple that with the fact that the stable flies are strong fliers, (can easily move miles), and it's hard to control them without treating the calves themselves and the walls, beams etc where they rest when not actually biting the calves. House flies may be more amenable to larvacides and predator wasps.
We also used permethrin applied to calves and surfaces with a pump-up sprayer. | |
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