Is heat treated firewood safe from concerns of oak wilt?

Asked November 7, 2018, 5:18 PM EST


I have a wood burning fireplace and would like to purchase wood. I have several oaks on my property (and in the neighborhood) that I care deeply for. I do not currently have dry firewood from my property that I can burn in my fireplace.

If I purchase firewood from a supplier who has been certified with the MN Dept. of Ag, can I be confident that heat treating process will kill the oak wilt fungus? They state the moisture content of the wood is below 15%. There is plenty of information out there about heat treating in relation to EAB but I cannot find much on oak.

Thank you for your help.

Ramsey County Minnesota

1 Response

Hello If the supplier is MDA certified you can be confident that the firewood is fine to burn. I will link a few sites for you to look over. The first is information from the UMN Extension website: The second is a reminder from the MDA detailing the importance of buying MDA or USDA certified wood: The third is general information on oak wilt from the UMN My MN Woods webpage: Let us know if you have any other questions. Thanks, Lacy - FIL