Table of Contents
History: The red imported fire ant (RIFA) is native to the state of Mato Grosso in Brazil. It was introduced into the United States at Mobile, Alabama, about 1940.
How were fire ants introduced?
Red and black imported fire ants (Solenopsis invicta, and S. richteri) are native to South America. They were accidentally introduced into the U.S. around the 1930’s through the port of Mobile, Alabama; probably in soil used for ships’ ballasts and have been spreading since.
How did fire ants get to the United States?
In the southern United States, fire ants have been a menace since they snuck into North America in the 1930s from Argentina, most likely as cargo stowaways. They spread rapidly in Florida, Louisiana, and other southern states, driving out other ants and disrupting the landscape with prolific, aggressive colonies.
What state has the most fire ants?
As of 2011 in the United States they were found in most of the southern states: Alabama, Arkansas, Arizona, California, Delaware, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, New Mexico, Oklahoma, South Carolina, Tennessee, Texas, and Virginia.
Why are fire ants in my house?
Fire ant colonies can migrate into homes and other structures in search of food, water, and nesting sites, especially during periods of extreme outdoor heat, drought, or flooding rains. They can enter through any cracks and crevices.
Where are fire ants established now?
In the United States, imported fire ants currently inhabit all or parts of Alabama, Arkansas, California, Florida, Georgia, Louisiana, Mississippi, New Mexico, North Carolina, Oklahoma, Puerto Rico, South Carolina, Tennessee, Texas, and Virginia. They are discovered sporadically in Kentucky, Missouri, and Maryland.
What problems do fire ants cause?
A single fire ant can sting its target repeatedly. Young and newborn animals are especially susceptible to the stings’ venom. These pests can damage the environment by displacing native ant species and reducing food sources for wildlife.
What’s the difference between fire ants and regular ants?
One way to distinguish fire ants from other red ants is that they have a 2-segmented pedicel, which looks like two bumps on the ‘waist’ of the ant—the area between the thorax and abdomen. Their thorax lacks spines, and they also have 10 distinct antennal segments with a 2-segmented club at the ends.
Can fire ants be eradicated?
The most effective way to kill fire ants is to use the two-step method: baiting and mound drench. The first step involves using bait to kill the queen and other worker ants deep in the colony. The second step is to use insecticide for targeted treatments on the mounds.
Does anything eat fire ants?
Enemies and Killers of Fire Ants. The red imported fire ant (Solenopsis invicta) is a native of Brazil, where it has natural predators. As the eggs hatch, they incapacitate the host ant and the larvae consume the ant’s body for food. Humans are the only other predator of the fire ant.
What attracts fire ants to your yard?
Fire ant workers are attracted to oily or greasy foods. They take these foods back to the colony and pass them to the other ants in the nest. Fire ants also will eat other insects, oily seeds, and sometimes during dry weather will dig into potatoes that are in the ground.
What animals eat fire ants?
Predators. Armadillos, antlions, spiders, birds, and horned lizards have been known to eat fire ants when given the opportunity, but are not known to have a major impact on imported fire ant populations.
How long do fire ants live?
In ideal conditions, queens have been known to live up to seven years. The average life span of a worker ant is five weeks.
What eats little fire ants?
In search of food, little fire ants trail along sidewalks and foundations up around buildings. These insects feed on the following: Honeydew from aphids and scales. Peanut butter or other oily foods.
Can fire ants live in walls?
Holes in exterior walls – Fire ants are not very big. There may be a lot of them, but the tiny ants can get inside through small holes in exterior walls from broken siding or vents in brick. Even holes in the walls from utility cables can create enough space for fire ants to get through.
How do I get rid of ants permanently?
White vinegar White vinegar, available at all grocery stores, is a cheap and effective way to kill and repel ants. It is also a natural cleaning agent. Try using a 1-to-1 vinegar/water mixture to clean hard surfaces, including floors and countertops, wherever ants are likely to travel.
How deep do fire ants go in the ground?
Tunnels in fire ant nests have been found to a depth of 10 feet or more, but most tunnels are shallower, starting just beneath the soil surface. Colonies in clay soils have deeper tunnels than those in sandy soils.
How quickly do fire ants spread?
Spread. Imported fire ants spread naturally during their mating flights. This spread is usually one mile or less but flights of up to 12 miles have been recorded. The flights occur most commonly in the spring or early summer, one or two days after a rain when the weather is warm and sunny and the wind is light.
Why are fire ants so aggressive?
Fire ants are very aggressive when their nest is disturbed. If provoked, they swarm on the perceived intruder, anchor themselves by biting to hold the skin stable, and then sting repeatedly, injecting a toxin alkaloid venom called solenopsin.
Are fire ants evil?
Fire ants are by far the most dangerous red ants in terms of harming humans because of their aggressive and painful stings.
How do you stop fire ants from spreading?
Spinosad baits are another organic option. They contain a chemical complex that’s produced by a soil microbe, Saccharopolyspora spinose. Insecticides can also be used to kill fire ants. The Environmental Protection Agency (EPA) regulates the use of insecticides for fire ant control.
How common are fire ants?
Over 40 million people live in RIFA-infested areas in the southeastern United States. It is estimated that 30–60% of the people living in fire ant-infested areas of the US are stung each year.
