Odorous House Ant - Casner Exterminating
Central Coast 800-655-4044 Ventura County 800-689-5455

Odorous House Ant

December 8, 2014

Family Structure

  • Queens can lay as many as 20-30 eggs in single day; usually lay only 1-2 (or less) eggs per day on average over long periods of time
  • Egg to adult: 34–38 days
  • Queens and male ants only produced in larger colonies
  • Colonies range in size from 100 to 10,000
  • Several queens (as many as 200 in some instances)


  • Indoors: colonize near heat sources or in insulation
  • In hot and dry situations: nests have been found in house plants and even in the lids of toilets
  • Outdoors: colonize under rocks and exposed soil
  • Form colonies virtually anywhere, in a variety of conditions


  • Scavengers/predators
  • Will eat most household foods – especially those that contain sugar – as well as other insects.
  • Collect honeydew to feed on from aphids, scale insects, and membracids


  • Can trail extensive distances (though their trails are rarely longer than 50 feet)
  • Usually travel along landscape edges
  • More likely to invade homes after rain (which washes away the honeydew they collect)
  • Highly tolerant of other ants
  • Compound nests consisting of multiple ant species have been observed
  • Non-aggressive

Contact Us

Contact us for help with a problem with Odorous House Ants. You may also call either our Central Coast office or our Ventura County office.

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