stubborn flea problem
I am treating an apartment with a heavy flea infestation (2 cats, 2 years). It is so bad I bag everything I wear after I am done.
The product being used is 'enforcer flea spray for homes' with .01% nylar and .25% permethrine.
I thoroughly sprayed the empty apartment once. When I came back to do some work I was again assaulted by fleas, so I sprayed the entire place again.
Why didn't the permethrine kill them off the first time? And how many treatments will I need? I know there are new fleas emerging from coccoons, but are there that many, or should I get a better flea product, maybe precor?