This is some pretty stout stuff. It's got a good residual too....1 pound container runs about 30-35 bucks. It will treat 25-30 gallons of water, but that's xtra strength, it's active ingredient is Cypermethrin ...40%, it can only be sprayed on the ground/dwellings, so Permethrin 10% can be sprayed on the dogs.


Also--That imidacloprid 1.47% posted above is a good active ingredient as well...