I purchased a couple of burls a year or so ago, I dug one out to turn and found that there are sawdust droppings from small holes which I assumed where from long gone bugs. Does anyone have a method for killing the critters? One of the burls was turned and given as a gift before I noticed, it is also still producing saw dust.
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Replies
w,
if your wood will fit into the freezer....
if your wood fits into the oven...
cook 'em or freeze 'em. works good.
eef
Bugs
Timbor is a one option.
Don't see the freezing as an option unless you go super cold like liquid nitrogen...
The other industry standard is to put in a kiln for 24 hours at 160 degrees. This is an industry standard for killing bugs and also for setting pitch.
Freezing works very well, I have done it several times.
Powder post beetles can hibernate through the winter if the temperature change is gradual so they can change their tissue chemistry, they actually produce an antifreeze that prevents ice crystal damage to their cells, but a sudden freeze will kill them.
HELP GOT BUGS
Thanks for the advice. I tried both methods the Tim-bor and the freeze. I applied the chemicals to half the burl (it's large) and moved it from the shop to outside for a suddend change to 25 deg. Niether half seems to be producing powder. Probably need more time to tell for sure but so far it's good. Thanks.
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