Indoor Fire Ant Invasions
Fire ants are outdoor, soil-dwelling insects. They rarely invade buildings, but when they do, they usually cause problems.
Indoor fire ant invasions happen for two reasons. The first is when foraging workers wander into a building, find a food source, such as pet food or spilled food crumbs, and recruit other workers to this food source. This results in a trail of workers traveling back and forth from the outside nest to the inside food source and a concentration of ants around the food source.
The second cause of indoor fire ant invasions is when an entire colony of fire ants attempts to relocate because of disturbance by flooding, drought, landscaping or other causes. This is less common, but more distressing. In this case, you usually see large numbers of workers carrying their white brood into the house. They may also bring particles of soil inside. These displaced colonies are usually very agitated and will sting aggressively and in large numbers. They have to be controlled quickly and effectively. See Extension Publication 2443, Control Household Insect Pests, Pages 15-16, for more details on how to control and prevent indoor fire ant invasions.
Dr. Blake Layton, Extension Entomology Specialist
Department of Entomology, Mississippi State University
Phone: (662) 325-2085
STARKVILLE, Miss. -- Southern farmers may never win the battle against imported fire ants, but aggressive tactics can slow the pests’ invasion, reduce damage and prevent further spread across the United States.
Jane Parish is an Extension/research professor with the Mississippi State University Extension Service and the Mississippi Agricultural and Forestry Experiment Station. She said cattle and hay producers have learned to live with and work around the troublesome ants since the pests arrived in the state almost a century ago.
STARKVILLE, Miss. -- People have many misconceptions on how to eliminate fire ant mounds and prevent them from coming back, and these erroneous beliefs hinder efforts to keep the harmful pest from spreading.
RAYMOND, Miss. -- Fire ants can be more than unwelcome guests in the home lawn; their stings can be dangerous for children and pets who share play areas with the pests.
Fire ant stings are characterized by sharp localized pain, swelling and intense itchiness that is just a short-lived nuisance for most. A raised red bump appears soon after the sting and soon turns into a sterile pustule that resembles a pimple. However, the ants’ venom can cause severe allergic reactions in some people and pets.
STARKVILLE, Miss. -- Tell Mississippians that fire ants have completely invaded the state, and they’ll probably shrug and say they already know that. Tell them the pain actually comes from a sting rather than a bite, and they’ll say it still hurts. But tell them how to get rid of the nasty critters, and they’re all ears.
The Mississippi State University Extension Service is organizing efforts to help residents Bite Back against fire ants. The solution is a simple two-part attack, but success comes in the long-term follow-through.
MISSISSIPPI STATE -- Fire ants are more than aptly named, given the reddish-orange color of their bodies and the painful, burning sting they can give.
Fire ants were unintentionally introduced to the United States from South America. The first documented release of fire ants occurred near Mobile, Alabama around 1918, and by the late 1930s, most of Mississippi had them.
Fire ants are very small and aggressive. When disturbed, they swarm, bite and sting, producing a painful or itchy pustule within hours.