When it comes to insect pests, fire ants would probably top everyone’s list! Red and black imported fire ants (Solenopsis invicta and Solenopsis richteri) are invasive species and their painful bites can injure or kill livestock, wildlife, domestic animals, and humans. Their large mounds (as many as 300 per acre) are unsightly and often damage mowers and other equipment. Fire ants also infest buildings and can damage electrical equipment by chewing on wire insulation.
Fire ants cost Americans $6 billion a year, including the cost of insecticides. The Two-Step Method and other approaches described here can lower that cost while reducing environmental damage and improving fire ant control. Knowing your options will allow you to make better choices to protect your family, pets, and property.
Identifying Fire Ants
Workers and eggs surround a fire ant queen.There are hundreds of ant species in the southern United States, including some native fire ant species, and most of them are considered beneficial insects. Collectively, ants till more earth than earthworms and some prey on other insect pests to help to reduce their numbers.
Fire ants will build their mounds almost anywhere—in the open or next to a building, tree, sidewalk or electrical box. A fire ant mound does not have a central opening. Fire ants emerge quickly and begin biting and stinging when the mound is disturbed. They will even run up vertical surfaces.
Worker fire ants are dark reddish-brown with shiny black abdomens, and are about 1/16- to about 1/4-inch long. Fire ants are similar in appearance to many other ants, so make sure you have correctly identified the species before attempting to solve your ant problem.