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Safe bug/flea control for stray cats & kittens in a backyard shelter?

Updated on September 23rd, 2025

Pet's info: Other | Unknown - Other

(I'm 16/F) There is a mother cat with two kittens living under the fence in my backyard. I feed them 2x a day and I watch them from my window as they come out and eat. I want to provide them with a temporary shelter (below) so that it will be easy to TNR later. However, there are a lot of bugs and I plan to put the shelter on top of the bricks on the second layer. I've heard of using vinegar sprays and cornstarch to get rid of bugs. Would this harm the cats? Thanks, tips and pointers appreciated

1 Answer

Most Helpful Answer

Debi Matlack

Answered By Debi Matlack

Veterinary Technician

Published on August 7th, 2017

Neither of those would be very effective against fleas. At a home and garden center you may be able to find sevin dust or granules. It's usually very inexpensive and can be sprinkled in areas that the cats frequent. I would concentrate mainly on areas that are cooler and shaded and less on areas that are in full sunlight most of the day; fleas can't tolerate the higher heat and will be attracted to the cooler areas. Sevin dust is a component in topical flea powders, so being around it would not be harmful to the cats. As alternatives, you could sprinkle borax in the areas or diatomaceous earth to help keep the flea population at bay. Thank you for helping stray kitties!
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