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Odorous House Ants

An odorous house ant that has yet to darken “clearly” stands out among other workers as they feed on gel. PHOTO: DR. KAREN VAIL

Study: Environmental modifications reduce OHA numbers

September 17, 2020 By
Evaluating changes in the population of odorous house ants (OHA) and the cause was the focus of a recent study at the University of Tennessee. Read more»
This article is tagged with , , , and posted in Ants, From the Magazine, Odorous House Ants, Technical

Ant management: Expect to help customers

August 5, 2019 By
Call in the pros, we advise anyone with a pest problem. But what expectations do you set once you arrive and assess your potential customer’s situation? Ants that manage to enter structures are seeking out water and food. To help... Read more»
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Photo: Heather Gooch

Ride along to odorous house ant account

June 7, 2016 By
Odorous house ants are easy to encounter and hard to pin down. Getting to the source(s) takes patience and an integrated approach. “You’ve got ants, eh? No uncles?” In early May, I seized upon the opportunity to follow J.R. Walsh... Read more»
This article is tagged with and posted in Ants, featured, Odorous House Ants
Brian Mount

Tips & Tricks: Pay Attention to Where Odorous House Ant are Trailing

November 3, 2014 By
The odorous house ant (Tapinoma sessile, known as OHA) is a small black or brown species that smells like rotten coconut when crushed. Outside, OHA live in colonies in soil, mulch, turfgrass or in logs or flower beds but will... Read more»
This article is tagged with , and posted in Ants, Odorous House Ants, Tips and Tricks
Photo courtesy of, and copyrighted by, Gene White, pmimages@earthlink.net

Fact vs. Fiction: Odorous House Ants

September 30, 2014 By
  Fiction: Odorous house ants (OHA) or Tapinoma sessile, are easy to kill. Fact: OHA can be managed with customary professional ant control products and techniques. The sooner they’re identified and interventions are put in place, the easier the process. Individually,... Read more»
This article is tagged with , and posted in Ants, Fact vs. Fiction, Odorous House Ants
Photo courtesy of, and copyrighted by, Gene White, pmimages@earthlink.net

Most Wanted: The 411 on the Odorous House Ant

August 20, 2014 By
As the most abundant of social insects (estimated at 1 quadrillion at any given time), more than 12,500 of an estimated 22,000 species of ants are classified. About 1,000 species are classified in the United States, and 33 new species... Read more»
This article is tagged with , and posted in Ants, Most Wanted, Odorous House Ants

Dos & Don’ts: Odorous House Ants

August 20, 2014 By
Do the applied myrmecology. Don’t  let the odorous house ants (OHA), Tapinoma sessile, invade structures and offend inhabitants. Do eliminate them though the environmentally benign process of integrated pest management (IPM). The IPM process can be defined as inspection and investigation,... Read more»
This article is tagged with , and posted in Ants, Dos & Don'ts, Odorous House Ants