Add Yahoo as a preferred source to see more of our stories on Google. Red imported fire ants – known as RIFA – are spreading throughout the southern U.S., and if there are enough nests in an area, ...

The red imported fire ant problem in the American South is no longer a story about a few hot spots that never change. State and federal agencies have kept expanding quarantine boundaries as colonies ...

Invasive fire ants, first arriving in the U.S. in 1918, have spread throughout the Southeast, causing problems for residents and farmers. Adding to the problem, red and black fire ants are ...

Three species of fire ants have been found in North Carolina: red imported fire ants, black fire ants, and hybrid fire ants. Red imported fire ants are the most common fire ant species in North ...

Fire ant colonies build mounds on the soil’s surface, a sign of their network of underground tunnels. Fire ants sting repeatedly when they feel threatened, making colony removal necessary.