[mauirobin]

I haven't tried it, but have had problems in my yard as well. Feral cats keep dropping em off in my back yard, & was frustrated that I had to keep up with treatments even in the winter months. My dogs basically stay in the house & fenced in back yard.

I switched from heartguard monthly heart-worm preventative to Sentinel & it seemed to stop the problem. Sentinel is a monthly heart-worm & flea preventative. It's rather expensive but then so is advantix (sp), Frontline & other flea medicines out there.

As a side note, not sure if the lull in fleas is the Sentinel I started, or the fact that everything was iced over for 2 weeks.

I say if the treatment is free, or inexpensive I would give it a try. Just make sure it's safe for your babies.