This is the appearance of sawdust frass underneath the kickout holes that lead into their tunnels.
Ants under wood siding.
Repair roof and plumbing leaks leaky chimney flashing overflowing gutters and all other water infiltration problems to avoid creating a tempting nesting area.
Ants are attracted to moist wood.
Look for large cracks around the foundation and windows at ground level any tree limbs or bushes touching the roof or walls cracks or holes in wood siding or trim and any sources of moisture or water such as leaks in pipes.
The holes are often located between bricks where mortar has fallen out under lap siding or in cracks in stucco.
Carpenter ants don t eat wood like termites.
Unlike termites carpenter ants do not actually eat wood.
How to get rid of ants begin with looking for holes in the siding where ants are crawling in and out.
Frass may be found in crawl spaces under your home basement areas garage spaces and secluded locations.
Ants under siding alexander lane posted in general questions on april 17 2019 03 04pm i am removing the cedar clapboard siding on my 1940 cape and a half western massachusetts and finding ants crawling around the diagonal board sheathing.
If you frequently see ants in the same area on the siding there s probably a nest in there.
Once carpenter ants establish a nest you may see stage two.
If you have a serious carpenter ant problem you may find wood shavings underneath your siding.
This is the spot i ll dust most often for pests like scorpions or occasional roaches for ants i most often use a non repellant spray such as arilon termidor or other and don t even worry about getting a product up and under.
Siding is purposely put up loose for expansion and contraction and so your duster tip or injection straw usually fit nicely.
However ants in and around your home could be a sign of a nest close by.