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Something is boring into Mahogany Logs - Help Identify Culprit & Recommend Best Actions to Control

 
P Lyons
Posts: 32
Location: Ontario, Canada
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Currently spending some time in Cuba and recently salvaged a couple of mahogany logs (trees being cut down for road works). The logs were debarked and left on a covered patio to dry while I decided what I would build with wood.

I recently noticed that something is boring into the log. The diameter of the hole is about 1mm, I probed the holes with a wire and they extend in about 1 to 2 cm, not sure if the path of the hole then has a turn or not. I have been unable to see any of the boring insects. I am not sure if it is an entrance or exit hole? See photos.


Based on what I was able to quickly find on the internet, it is not termites as they do not produce sawdust/frass, but is more likely some sort of boring beetle?

I would like to identify what the insect is and figure out the best non-toxic treatment to eradicate this pest.

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Mahogany logs
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Entrance or Exit Hole
 
P Lyons
Posts: 32
Location: Ontario, Canada
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A couple more photos
IMG_2353.JPG
[Thumbnail for IMG_2353.JPG]
Entrance/Exit Hole
IMG_2354.JPG
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Sawdust/Frass
 
Judith Browning
Posts: 5555
Location: Arkansas Ozarks zone 7 alluvial,black,deep loam/clay with few rocks, wonderful creek bottom!
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Hi, P Lyons....I've added your topic to 'woodworking' in hopes that you get some answers to your question.
 
Chadwick Holmes
pollinator
Posts: 618
Location: Volant, PA
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Probably post borer, try borax and water, just try not to get borax on the earth, or waterway or septic....
 
Alder Burns
pollinator
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Location: northern California
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If you have access to it, you might try submerging the logs in water, at least for a while. This will drown the bugs in the wood, and prevent others from getting in. When I lived in Bangladesh it was common for woodworkers to simply store their logs in the water until they were ready to work with them. I think soft wood like pine might be tempted to rot this way or crack badly after sawing up, but these were dense tropical hardwoods.
 
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