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Cathy from United States writes

What DIY flea products should NOT be used around cats? We want to find a product that we can use in our fogger

We live in the hot south near flea infested sandy sois. We have lots of carpet inside our home and a carpeted cat tree. Our yard seems to fill up with fleas overnight! We have dogs that go inside and out, and our cats stay inside. Sadly, the fleas seem to find the cats too (I guess from the dogs). We bathe them with flea shampoo and treat them with topical flea controls. We even give them the oral flea pills. We're still losing the battle. We are now trying to find the perfect blend of chemicals that is effective inside and outside of our home but safe for both cats and dogs. We have a professional "fogger" that we can use to apply the mixture inside, and we have an outside sprayer and spreader that we can use outside. Is there a single chemical concentrate that will work? If not, is there a best TWO chemicals that we can use?


Fogging is not usually the best option for flea control. Fogs work best for flying insects and exposed insects like roaches. For flea control, you will want to use a hand pump sprayer for indoor and outdoor applications. We recommend our Indoor/Outdoor Flea Kit if you would like to use the same product for both areas.  The kit includes 1 pint of Onslaught insecticide to kill the active adults and 1 x 4 oz. bottle of Martins IGR to stop flea growth and reproduction.  We've included these products because they are easy to use, effective, and safe to use in your yard and inside the home. Be sure to vacuum immediately before the indoor application and every day for 14 days after the application to help speed along the flea elimination. Outdoors you want to concentrate on places where your animals spend time resting and on moist shady areas where fleas like to develop. After 14 days you should repeat the application to get any late-developing fleas. Be sure all of your pets are out of the area while you do the application and they can safely return after the areas have dried.

Answer last updated on: 02/27/2012

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