I believe the Martins in my picture in post 6 is 0.5% (double check me though,) and that is fine to use. Just doublecheck the % of permethrin. Directions usually say to use about 1/2 ounce per bird.
Those concentrate forms (several different brands) are sold in small 8 ounce or 16 ounce containers, and will make a lot of gallons of spray. Just follow label instructions for mixing. That comes in handy when emptying out bedding and spraying nests, roosts, and the coop with an infestation.
Those concentrate forms (several different brands) are sold in small 8 ounce or 16 ounce containers, and will make a lot of gallons of spray. Just follow label instructions for mixing. That comes in handy when emptying out bedding and spraying nests, roosts, and the coop with an infestation.