Potential Beetle Issues??

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Forum topic by BoilerUp21 posted 01-09-2018 12:27 AM 580 views 0 times favorited 4 replies Add to Favorites Watch
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153 posts in 1570 days

01-09-2018 12:27 AM

So i purchased a bunch of red oak two weeks ago and am in the process of jointing/planing it. I have found that some of the boards ~20% have sections that appear to have been infested with beetles at some point. The wood i purchased was kiln dried and was taken directly from the kiln to my car. Pictures:

Since all of the wood was kiln dried, do i need to be concerned about anything that may have survived the heat from the drying process? it looks like some of the holes contain dried up dead beetles, but i want to make sure that kiln drying the lumber should have killed everything and that i just need to work around these areas?


4 replies so far

View John Smith's profile

John Smith

2507 posts in 965 days

#1 posted 01-09-2018 12:36 AM

call the people that kiln dried the wood.
ask what temperature they used on your particular boards
and tell them about the bug evidence that you found – and see what they say.

I have noticed that “kiln dried” has so many specifications all over the country.
some heat the air to 140*f some don’t heat at all and only used big fans to
circulate the air and decrease the moisture content of the wood.

Like Arizona for example…... walk into a metal building there and you will DIE.


-- there is no educational alternative to having a front row seat in the School of Hard Knocks. --

View pintodeluxe's profile


6173 posts in 3616 days

#2 posted 01-09-2018 12:37 AM

Kiln dried, I have learned, means different things to different people. There are certain requirements for kiln drying to kill bugs depending on thickness of the lumber. “Sterilization” as it is called, requires 140 degrees F for 3-5 hours, or 130 degrees F for 10-12 hours. This applies to lumber up to 8/4 thickness. Thicker lumber takes more heat and more time.

Once a load is sterilized it doesn’t stay bug free forever. It just kills the bugs that are present at the time. If stored indoors, in a climate controlled environment, it is likely fine.

I would check the moisture content at the core, just to make sure it was adequately kiln dried. Unless you live in Arizona, 10% or less M.C. and you’re fine.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

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153 posts in 1570 days

#3 posted 01-09-2018 01:02 AM

I was told the wood was “cooked” at 130 degrees for 3-4 days per cycle (2X cycles). So it sounds like this should be enough to alleviate any concerns.

View Alex Lane's profile

Alex Lane

574 posts in 4693 days

#4 posted 01-09-2018 04:12 AM

I had major problems with the little stinkers making powder of my gorgeous (and evidently very delectable) maple and claro walnut burls. Someone here on LJ suggested Tim-Bor which I used. It took 3 or 4 treatments because eggs were hatching, but they’re all done for. And it will literally shut down the cellular function of any bug that eats it. The manufacturer’s description was very scientific and technical, so it’s likely they know their stuff when it comes to bug elimination/prevention. Not dangerous to people as far as I know :-P. Just wish I could get my burls back lol.
Amazon sells it. Best wishes!

-- Alex...builder of wooden wings for vintage sport biplanes...I'm your wingman :)

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