What's the best homemade cats deterrent??

Are they getting in your garden? Is this for outside?

They say Pepper is good?

I got one of those motion activated sprayers and it ran off everyone of the feral cats that were getting the birds at my bird feeders; it also seems to be doing a good job at keep the raccoons from raiding the feeder. This is the one I got; I originally got a different less expensive brand; and it did not work. This one works:

https://www.amazon.com/gp/product/B009F1R0GC/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

This is info on getting rid of feral (not domesticated) cats that live everywhere but do not have homes. See if any of these tips or suggestions apply to your problem! Good luck! http://wildlifeanimalcontrol.com/straycats.html