We live in the fire ant capital of the world (East  TX).  We even have fire 
ant festival yearly.  We have tried many  things...even DE.  It didn't get 
rid of them.  However, 7 Guineas  adopted us 3 years ago and our ant, flea, 
tick problems are almost non  existent now.  We are so impressed with them 
that we hatched 60 more last  Fall/Winter.  We NEVER want to be without them.
 
Edith