This morning I went to Dick's and picked up a 24 oz spray bottle of Sawyer Permethrin Insect Repellent. At only $14, it was a lot less expensive than I thought it would be. I asked my daughter if she knew about this stuff and she said, "Yes". When Erin and her friend Liz took a trip to Peru last year, they were instructed to douse all their close with it because the bugs in the jungle are fierce. You can't get a better testimonial than that.
The first thing I did was to bring everything outside to be sprayed and hung my hunting clothes on the clothesline. Then I put on some Latex gloves to protect my hands from this stuff. It's really toxic until it dries.
They give an instruction sheet in the box which I found a bit confusing. It says you must use 3 oz per garment. 6 oz. per outfit. The bottom line is that the bottle contains 24 oz and you can treat 4 outfits per bottle. That means that you should use 1/4 of the bottle per outfit. Be careful which way the wind is blowing. You want the wind to your back if possible. Once sprayed, leave the clothes out to dry for a minimum of 2 hours on a dry day and 4 hours when humid. Then store everything in a dark plastic bag between uses to help preserve the application. Once applied, I don't wash the pants until they get really dirty. Of course the shirt and socks will need to be washed after each hunt. You can wash 6 times before needing to reapply.
The question came up in an earlier post as to whether Permethrin has an odor that game can detect. The package says in big letters that it is odorless, so I guess it must be.