We give our mutts trifexis for heartworms/fleas but also spray Bifen in the yard. It kills or keeps away pretty much all bugs and is approved to spray indoors. I've been using it about 5 years and everybody I've recommended it to uses it. It also keeps mosquitoes out of the yard, something tough to do on the coast The guy that sprays at work said this is the same chemical they would use for monthly/quarterly treatments.
Last edited by lantx005; 05/22/17.
