Fire Ant Facts

Fire Ant Egg to AdultFire ant life cycle: egg to adult
Fire Ant Queen vs. WorkersFire ant queen versus workers
Fire Ant moundFire ant mound

The USDA estimates that fire ants cause over $5 billion of damage annually in the United States.

  • The red fire ant was first introduced to the United States in the 1930's
  • Since then, it has rapidly spread across the southern part of the country and now infests over 309 million acres in 14 states

Fire ant life cycle:

  • Fire ant workers live anywhere from 30 to 60 days
  • A queen can live from 2 to 6 years
  • A fire ants life cycle from egg to adult is 22 to 38 days
  • A fire ant colony propagates during mating flights
  • A mating flight may contain up to 4,500 male and female reproductives
  • Mating flights can occur anytime, but are most common in the spring and fall
  • A new queen will lay one dozen eggs. Once a colony is established, a queen will lay up to 800 eggs per day
  • A monogyne colony (with one queen) builds 40 to 150 mounds per acre, while a polygyne colony (multiple queens) builds 200 to 800 mounds per acre
  • If left untreated, a colony can contain 500,000 or more workers and several hundred alates

To identify the red imported fire ant, look for these distinguishing characteristics:

  • Red body color with a black abdomen
  • A two-node pedicel
  • A hairy abdomen with a stinger at the tip
  • A 10-segmented antenna ending in a two-segmented club
  • A mandible with four distinct teeth
  • A fire ant queen will approximately measure 1/2 inch in length and have a dark reddish-brown color

To identify a fire ant mound look for:

  • A mound of earth that is 1-2 feet on diameter and 4 to 18 inches high
  • No openings on the surface of the mound: ants leave through underground tunnels

 
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