Fleas!

[CrabbyAppleton]

15. I won't list brand names...

What you want to use is an insect growth regulator. It kills insects by preventing the fleas from moulting. This kills them when they are immature so no mating or new eggs (Flea eggs are hard to kill and can survive for years). It doesn't work as quickly as regular pesticides but it does a much better job in the long run and is safer for the environment as it's an insect hormone analog, not a pesticide. There is less chance the pest will acquire immunity too.

It should be noted that it's harmful to immature bees but if you avoid spraying flowers and other places bees congregate you should be OK.

Methoprene is the stuff I use and it's good against fleas, roaches, mosquitoes and flies. It can be mixed with other quick acting pesticides too but it's for indoor use only.

I'll try to find the outdoor equivalent.

NO to Borax and diatomaceous earth for pets!

Pyriproxyfen is the IGR I use for outdoor infestations.

Crabby

*Added info and speeling.