Posted 11/22/2015 06:55 (#4912064 - in reply to #4911749) Subject: RE: Canine fleas
northeastern Ohio
I just went through this with a rental house. Had to spray every week for 4 weeks.
Someone told me that the flea eggs can "sense" movement and carbon dioxide. They sort of go into hibernation until they sense that there is an animal or human in the area. Not sure if it is true, but I know they are a bugger to get rid of.