Quick answer
How to read this evidence
Termite frass usually appears as tiny hard pellets below drywood termite kick-out holes. If pellet piles return after cleaning, hidden drywood termite galleries may still be active.
Confirm by checking
- Small hard pellets that look like sand or coarse sawdust
- A tiny hole above the pile in trim, furniture, attic wood, or framing
- Pellets that reappear after the area is cleaned
- Color that often matches nearby wood tones
Do not confuse with
- Carpenter ant frass often includes wood shavings and insect parts
- Powderpost beetle frass is usually finer and flour-like
- Ordinary sawdust is usually linked to recent cutting, drilling, or sanding
Practical identification guidance
What this termite frass evidence can tell you
Drywood termite frass usually forms small piles of hard, evenly sized pellets beneath tiny kick-out holes in wood.
Check these details
- Photograph the pellets and inspect the wood directly above for pin-sized holes.
- Compare the pellets with irregular sawdust, ant debris, and powderpost beetle dust.
Avoid a false match
Frass can indicate hidden drywood termite activity, but it does not show the full colony location or damage extent.
Best next step
Leave the evidence undisturbed for documentation and arrange a focused wood inspection.
How to use this evidence
A clear photo can support a visual comparison with known pest evidence.
A photo alone cannot confirm the source or extent of an infestation. Check for matching physical evidence nearby.
What you found
Drywood termites push pellet-like droppings, called frass, out of small openings in infested wood. Piles of pellets below trim, furniture, or attic wood can indicate hidden drywood termite galleries.
Common places to check
- Inspect window trim and nearby hiding spots for matching evidence.
- Inspect baseboards and nearby hiding spots for matching evidence.
- Inspect attic framing and nearby hiding spots for matching evidence.
- Inspect furniture and nearby hiding spots for matching evidence.
- Inspect door frames and nearby hiding spots for matching evidence.
How to identify it
What it may indicate
Structural context
Drywood termite galleries can weaken wood over time.
Property context
Furniture, trim, framing, or attic wood may be affected.
Infestation context
Fresh recurring frass points to active galleries.
Recommended actions
- 1Photograph and save a sample for identification
- 2Do not seal kick-out holes before inspection
- 3Check nearby wood for additional holes or pellets
- 4Reduce moisture, though drywood termites can live in dry wood
Prevention and monitoring
Professional options
- Drywood termite inspection
- Localized treatment, heat, fumigation, or wood replacement depending on spread
- Follow-up monitoring for recurring pellets
FAQ
Does termite frass mean termites are active?
Recurring fresh pellets after cleaning strongly suggest active drywood termite galleries. A one-time old pile still deserves inspection.
Is termite frass the same as sawdust?
No. Drywood termite frass is made of tiny hard pellets, while sawdust is usually softer, irregular, and not uniform in shape.
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