Thank you, looks like I am on the way to feed store. Been thinking of getting DE for a flea problem also. Advantage is not helping my poor dog. So DE it is!I put down food grade DE after I kick the hill in real good. Works pretty good but make sure its dry out when you put it down and disturb as much of the bed as possible so you can coat as many ants as you can.They eventually die out or move on from my yard because they get tired of me coming around with the DE.I've never seen my girls eat trailing fire ants so not im sure if they would want to tangle with a whole mound of them.