I know when we lived there (the Puget Sound area) our vet was only concerned about fleas and ticks.  I pressed about heartworm but he said it wasn't an issue in that area. I think it was something about that side of the mountain ranges was sort of isolated from the problem of heartworm carrying mosquitoes. I know I was worried because we certainly had plenty of mosquitoes in the summers.

Our vet in WA was a traditional/conventional vet as well, not a holistic vet by any means. I forget the name of our vet now, but it was a vet in Everett we used to take Dakota to before we moved south and switched to holistic vets.

Ok good to know. We are north of Green Lake now so not that far from Everett. I'll look it up.

The vet I work for, the only time he is concerned about heart worms is if the dog comes from a different state than WA. I have heard that on the East coast they've been having issues with Frontline not working because the parasites are building up a tolerance to it. My vet recommends Revolution, it also prevents hookworms, roundworms, heartworms, and ringworms. Capstar only works for 24 hours and doesn't kill the fleas instantly (we gave one to a puppy yesterday and they were still slowly falling off of her when she went home. As long as he doesn't have fleas, I'd go with the natural stuff. Revolution is FDA approved, that's the reason I use it over all the other stuff.

Thanks Roxy, I was gonna text you actually. He doesn't have fleas, so I'm completely sold.

I'm using Rose Geranium on my dog and is working great.