This past spring, I purchased the 10% Permethrin from Rural King. My question is the premade spray (0.5%) mix would equate to 1oz Permethrin to 20oz of water . If I mix 1oz Permethrin to 15oz water (0.625%) would this cause adverse effects on skin? Be a waste of money cause 0.5% is sufficient?
I've always done the 0.5% mix. Always allowed to dry for several days with no rash issues. After doing last weekend treestand setup, I noticed 2 ticks on pants that were treated 2 weeks ago w/fresh batch of mix.