Termite Education
Arizona Termite Guide
Everything you need to know about the termites threatening Arizona homes — species, behavior, warning signs, and when they strike.
Why Arizona Has a Termite Problem
Arizona's warm climate, dry soil, and abundance of wood-framed construction make it one of the most termite-active states in the country. Subterranean termites thrive in the desert soil year-round, while drywood termites infest attics and furniture without any soil contact.
Most homeowners don't discover an infestation until significant structural damage has already occurred. Knowing what to look for — and when — is your first line of defense.
Termite Species in Arizona
Subterranean Termites
Most DestructiveReticulitermes and Heterotermes spp.
The most common and damaging termite in Arizona. They live underground in large colonies and build mud tubes to reach wood above the soil line. A single colony can contain over a million workers and consume a pound of wood per day.
Warning Signs
- Mud tubes on foundation walls
- Hollow-sounding wood
- Sagging floors or ceilings
- Discarded wings near entry points
Drywood Termites
High RiskIncisitermes minor
Drywood termites infest dry wood directly — no soil contact needed. They're commonly found in attic framing, furniture, and hardwood floors. Colonies are smaller than subterranean but can go undetected for years.
Warning Signs
- Frass (tiny pellet droppings) near wood
- Blistered or darkened wood surfaces
- Swarmers near windows and lights
- Small kick-out holes in wood
Dampwood Termites
Moderate RiskZootermopsis spp.
Less common in Arizona's dry climate, dampwood termites require high-moisture wood to survive. They're typically found in areas with plumbing leaks, poor drainage, or wood-to-soil contact. Fixing moisture issues is essential to eliminating them.
Warning Signs
- Soft, water-damaged wood
- Large fecal pellets inside galleries
- No mud tubes
- Wood that crumbles easily
Inside the Colony: Termite Castes
Every termite colony is a highly organized system with distinct roles. Understanding castes helps explain how infestations grow and spread.
Workers
The most numerous caste. Workers are blind, wingless, and responsible for all the damage — they forage for food, feed the colony, and build tunnels. They never stop working.
Soldiers
Soldiers defend the colony from predators like ants. They have large heads and powerful mandibles. They cannot feed themselves and rely on workers for food.
Reproductives
The king and queen are the colony's founders. The queen can live 25+ years and lay thousands of eggs per day. Supplementary reproductives can take over if the queen dies.
Swarmers (Alates)
Winged reproductives that leave the colony to start new ones. Seeing swarmers inside your home is a strong sign of an active infestation nearby.
When Do Termites Swarm in Arizona?
Swarming is how termite colonies reproduce and spread. In Arizona, subterranean termites typically swarm in spring (March–June) after warm rains, while drywood termites swarm in late summer (July–September). Swarmers are often mistaken for flying ants — the key difference is straight antennae, equal-length wings, and a thick waist.
Swarming Activity by Month
How Termites Survive the Arizona Desert
Deep Soil Colonies
Subterranean termites build colonies deep underground where soil moisture is stable, even in extreme heat.
Mud Tubes
Mud tubes maintain humidity as termites travel from soil to wood, protecting them from the dry desert air.
Moisture Harvesting
Termites extract moisture from the wood they eat and from condensation in walls, making them self-sufficient.
Nocturnal Foraging
Many species forage at night or underground to avoid heat and predators, making infestations hard to detect.
Think You Have Termites?
Don't wait. A free inspection takes 30 minutes and could save you thousands in structural repairs.