Pharaoh Ant (Monomorium pharaonis)

Difficult to Eliminate • Major Multi-Unit Housing Pest in CT

Pharaoh Ant – Connecticut Identification & Control Challenges

The pharaoh ant is one of the most difficult ants to control in Connecticut, especially in multi-unit apartment buildings. These tiny, yellowish ants form massive colonies that can split into multiple satellite colonies when stressed — a behavior called “budding.”

Identification:

• Size: Very small (1/16 inch)
• Color: Yellow to light brown
• Features: Darker abdomen tip
• Behavior: Slow, methodical movement

Because they prefer warmth, they often nest inside walls.

Behavior & Habitat:

Pharaoh ants prefer:

• High indoor heat
• Kitchens and bathrooms
• Electrical outlets
• Baseboards
• Voids behind cabinets

They feed on sweets, proteins, and grease.

Why They Are a Problem in Connecticut:

They are common in:

• Apartment buildings
• Schools
• Nursing homes
• Hospitals

Spraying these ants is a major mistake — it causes colonies to split and spread.

Signs of Infestation:

• Tiny yellow ants trailing along walls
• Foraging near sinks
• Activity around outlets
• Infestations in multiple rooms

When to Call a Professional:

Pharaoh ants require professional baiting strategies, not sprays.

Ant Control CT

 Additional Links:

• Cockroach Control (for multi-unit housing) 
• Pest Prevention