I purchase the 2.5% permethrin concentrate under the Ortho label at Home Depot called "Home and Garden Insect Killer" (or something like that) at $9.00 a quart. Then I dilute to 0.50% with water (one part permethrin concentrate to four parts water) and spray on CLOTHING and SHOES with a $1.00 hand held pump sprayer. That is the concentration in the Permanone spray, 0.50%. It works great and costs very little.
In reality, the permethrin creates a "hole" in the insect world all around the treated location, but for a short duration. As soon as the permethrin is exhausted in the environment, the protective "hole" caves in. I have this on tee shirts over the german shepherd as he lies on the back porch and around the house. No ticks, no mosquitos, no No See-Ums.
Ditto to "Do Not use on skin", but the MSDS and literature I have read seems to indicate the toxicity to humans is nill. Still, I only write in itallics every so often.
I got wind of this product when a couple of researchers wrote about their two day excursion into a 305 acre park in New Smyrna Beach, FL in the Smithsonian Magazine. They reported the strength of the chemical was sufficient to kill ants that picked up dead mosquitos and still effective after 6 washings of their clothes. They speculated they killed 90% of the biting mosquito population in the park in two days. Remember that "hole" theory of mine above.
