What is this bug in my Maple?

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Forum topic by Dabcan posted 02-04-2015 09:51 PM 953 views 0 times favorited 9 replies Add to Favorites Watch
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249 posts in 2088 days

02-04-2015 09:51 PM

Topic tags/keywords: maple bug worm

I was milling up some maple today and I noticed these funny tracks in some of the wood. I cleared them out with a pick and then noticed the holes on the other side of the board. The holes had some yellow around them, and I picked out the thing in the other picture. Any ideas what this is? Should I be worried about having this wood in my shop?

-- @craftcollectif ,,

9 replies so far

View CharlesNeil's profile


1602 posts in 3288 days

#1 posted 02-04-2015 10:18 PM

I am not a bug expert by any means, but if the critter was living, get it out of your shop..

Usually kiln dried wood, while it may show some bug tunnels and so forth , pretty much kills them but if its just air dried or has been exposed to insects , best to go to the side of caution .

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Bill White

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#2 posted 02-04-2015 10:32 PM

Powder post beetles?


View gfadvm's profile


14925 posts in 2107 days

#3 posted 02-05-2015 01:33 AM

Those holes are way too big for powderpost beetles. Other bugs do not attack dry wood. I see a lot of damage like yours in elm, pecan, and hackberry but have never found any live critters in dried lumber.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

View Dabcan's profile


249 posts in 2088 days

#4 posted 02-05-2015 02:09 AM

The “bug” was kinda like a slug, squished pretty easy. I think the lumber is air dried, I’ll ask the guy I buy it from next time I see him

-- @craftcollectif ,,

View Mustang67's profile


102 posts in 971 days

#5 posted 02-05-2015 02:58 AM

Looks like a carpenter worm to me. I had couple in a cedar log, but they were bigger. I believe they are the larval stage of a moth.

View Ghidrah's profile


667 posts in 639 days

#6 posted 02-05-2015 03:14 AM

Larval stage of moths and beetles, flatheads or carpenter worms

-- I meant to do that!

View Dark_Lightning's profile


2619 posts in 2526 days

#7 posted 02-07-2015 01:47 AM

Termites? I’ve even seen them in oak flooring. The holes do seem pretty big, though.

-- Random Orbital Nailer

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829 posts in 994 days

#8 posted 02-07-2015 02:51 AM

I’d say Powder post beetles, I found some wood in my garage with them in it. Weird/good thing was it was only in my maple, even with it mixed in with other species

View Ghidrah's profile


667 posts in 639 days

#9 posted 02-07-2015 03:00 AM

Most times, depending on the time of yr the wood is harvested the wings and carcasses of dead termites and carpenter ants can be found in the tunnels. Carpenter ants produce an almost sanded look to their tunnels while termites are the Oscar Madisons of the borer world. Their tunnels are like rough sawn compared to s4f.

-- I meant to do that!

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