Arizona Termite ID Guide

Subterranean vs. Drywood Termites in Phoenix, San Tan Valley, Casa Grande & Maricopa: How to Tell Which One You Have

In Arizona, termites can look similar at first—but the correct identification changes everything. Use this guide to quickly determine whether you’re dealing with subterranean termites or drywood termites, plus what to do next in the Phoenix metro and surrounding areas.

Phoenix-area focused Homeowner-friendly Includes photo ID section

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If you’re seeing tubes, wings, or frass and want certainty fast—Gold Palm can confirm the species and risk level with a complimentary inspection.

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What you’re seeing Photo identification Subterranean signs Drywood signs Phoenix-area patterns Next steps FAQ

First: What did you notice in your Arizona home?

In Phoenix, San Tan Valley, Casa Grande, and Maricopa, the most common “first signs” homeowners report are:

Mud tubes along foundations, stem walls, or block walls
Swarmers (flying termites) indoors near windows/lights
Discarded wings near sills or baseboards
Pellet-like droppings (frass) under trim or in window tracks
Blistered paint, hollow wood, or soft spots

Quick rule: mud tubes usually point to subterranean termites; frass pellets usually point to drywood termites. If you have both—or you’re not sure—an inspection is the fastest way to avoid a wrong (and expensive) treatment.

Photo slot: Subs poking through wall vs drywood holes

Fast “yes/no” checklist + photo

Photo slot: add a “mud tubes vs frass pellets” comparison image.

If YES to any below, subterranean termites are more likely:

Tubes on exterior walls, stem walls, or near slab edges
Damage starting low near baseboards
Moisture issues nearby (leaks/irrigation)

If YES to any below, drywood termites are more likely:

Small “sand-like” pellets under wood
Tiny kick-out holes in trim/fascia
Damage in attic framing or upper trim

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Photo Identification

Use photos to identify the termite type (Arizona)

If you’re a visual person, this section helps you compare what you’re seeing in your home to the most common signs in Phoenix and nearby areas. Swap these placeholders with your own photos (best), or licensed images.

Subterranean termite (close-up): typically linked to soil colonies and moisture.

Mud tubes on foundation/stem wall: classic subterranean sign.

Swarmer: winged termite often found near lights/windows.

Discarded wings: often found on sills/baseboards after swarming.

Slab edge / garage perimeter: common entry/activity zone.

Drywood termite (close-up): lives inside wood—no soil contact required.

Frass pellets: hard, sand-like droppings under trim/window tracks.

Kick-out holes: tiny holes where pellets are expelled.

Window track frass: a very common “first discovery.”

Upper trim/attic damage: drywood termites can show up higher in the structure.

Best practice: Use photos + location. Tubes on the exterior foundation strongly suggest subterranean termites. Pellets under trim/windows strongly suggest drywood termites. When it’s unclear, a quick inspection saves money.

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Arizona Termite Identification

The difference that decides the treatment

Subterranean termites and drywood termites behave differently in Arizona’s climate. The signs below help you narrow it down before you spend money on the wrong approach.

Subterranean Termites (most common in Phoenix-area soil)

Soil-based • Needs moisture

Photo slot: close-up of tubes/soil contact at foundation.

Where they live: underground, then travel into your home from below.

Most reliable signs:

Mud tubes on foundation/stem walls/block walls
Swarmers indoors (often near windows/lights)
Damage lower on walls/baseboards and slab edges

Typical professional strategies:

Non-repellent liquid soil zones (built around continuity)
Bait stations for monitoring + colony control
Foam as a supplement (voids/penetrations), not the whole plan

Local note: irrigation patterns + perimeter moisture can influence activity around slabs and foundation transitions.

Drywood Termites (wood-dwelling pockets)

Inside wood • No soil contact

Photo slot: frass pellets in a window track / under trim.

Where they live: inside dry wood—trim, fascia, attics, framing, furniture.

Most reliable signs:

Frass pellets beneath wood/trim/window tracks
Kick-out holes in trim/fascia/soffits
Isolated damage (often upper areas like eaves/attic)
No mud tubes (typically)

Typical professional strategies:

Targeted foam/injections when localized and accessible
Localized wood treatments where reachable
Fumigation when widespread/unknown spread

Local note: drywood activity is often discovered around upper trim/rooflines and attic framing.

Local Phoenix-Area Notes

What we commonly see in Phoenix, San Tan Valley, Casa Grande & Maricopa

Termite pressure varies by neighborhood, building style, and moisture patterns. Common hot spots include slab edges, garage perimeters, expansion joints, plumbing penetrations, and exterior-to-interior transitions.

Gilber / Chandler

Swarmers near windows + activity around garage slab edges and perimeter transitions are common homeowner reports.

Queen Creek / San Tan Valley

Newer homes still get termites—especially where landscaping/irrigation creates consistent perimeter moisture.

Florence / Coolidge

New homes getting termites in garages and on column between garage doors on multi-garage unit homes.

Casa Grande & Maricopa

Homeowners often notice early signs in garages and along the foundation line—identification matters before choosing a treatment style.

If you want to stay DIY-first, start with accurate ID and mapping the activity. If you want long-term protection, professional treatment typically focuses on eliminating the pathway (subterranean) or treating hidden galleries (drywood).

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Next steps (without overreacting)

Document the sign (tube, wings, pellets) and note where you found it.
Avoid random sprays—they can miss the colony and waste money.
Decide your path: DIY exploration or professional elimination + warranty.

If you’re not sure what you’re seeing, a quick identification visit can save you from choosing the wrong approach. Gold Palm serves Phoenix, San Tan Valley, Casa Grande, and Maricopa with free termite inspections.

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Service areas: Phoenix • San Tan Valley • Casa Grande • Maricopa • and nearby Arizona communities.

Common Questions

Arizona Termite FAQ

Swarmers indoors usually mean a colony is nearby (or active within/under the structure). It’s a strong reason to confirm species and entry points—especially if you also find wings or tubes.

Drywood frass is small, hard, pellet-like material that collects below the infestation area—often in window tracks, on sills, or under trim. Mud tubes are not typical for drywood termites.

Spraying visible termites rarely solves the problem. Subterranean colonies remain in the soil, and drywood galleries can be hidden in voids. Identification + correct strategy is what stops repeat activity.

Yes—this page is written for Phoenix and surrounding Arizona communities, including San Tan Valley, Casa Grande, and Maricopa. Use the inspection section above to request a visit.

Clarity, not guesswork

Not sure if it’s subterranean or drywood termites? We’ll confirm it.

If you’re in Phoenix, San Tan Valley, Casa Grande, or Maricopa, a quick inspection can help you avoid wasted DIY spending and choose the correct strategy.

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Educational note: DIY can help in some localized cases—professional methods are built for reaching colonies and hidden galleries more reliably.