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What’s in Your Woodpile?. Firewood Regulations. EAB quarantine = restrictions on regulated articles Hardwood firewood = regulated article Regulated articles cannot be moved out of quarantined areas unless accompanied by a MDA certificate. Firewood Regulations.
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Firewood Regulations • EAB quarantine = restrictions on regulated articles • Hardwood firewood = regulated article • Regulated articles cannot be moved out of quarantined areas unless accompanied by a MDAcertificate
Firewood Regulations Quarantined Counties
Firewood Regulations Quarantined Counties
Firewood Regulations • MDA certificates require an active compliance agreement with the MDA or USDA • Under the conditions of a compliance agreement, certificates may be issued for firewood that has been heat treated to specific temperatures in a kiln to render it safe • MDA certified firewood is allowed to move freely around the state
DNR-approved Firewood Required on State- Owned Land • DNR lands have additional firewood regulations. Regardless of any quarantines, firewood must be either: • Obtained from a firewood distribution facility on State-owned land, or • Obtained from a firewood dealer approved by the DNR commissioner (with receipt)
Softwood versus Hardwood Resin Canals Softwoods have Tracheids (fibers), No Vessels (pores). Many have Resin Canals.
Softwoods versus Hardwoods Pores Hardwoods have Fibers and Pores
Ring Porous versus Diffuse Porous • Large Pores in Earlywood and Small Pores in Latewood = Ring Porous Hardwood Large, obvious lines are Earlywood. Smaller,darker heartwood or lighter sapwood lines are Latewood.
Ring Porous versus Diffuse Porous Pores about same size and distributed evenly throughout growth ring = Diffuse Porous.
“Other” Features: Elm Bark Cross-Section Layered Bark of American and Rock Elm
Versus, No Rays in Ash Cracks or Checks, but not Rays
“Other” Features: Elm and Hackberry Hackberry American Elm Both Have Wavy (tire track) summerwood
“Other” Features: Elm and Hackberry Hackberry has Corky Ridges on Bark, no Layered Cross-Section
“Other” Features: Red vs. White Oak Sodium Nitrite turns White Oak Heart Wood Blue to Purple
“Other” Features: Black Walnut Medium brown to dark chocolate heartwood.
Which log is hardwood? • Log on the left • Log on the right 0 of 5
What is this? • Oak • Ash • Walnut • It’s hardwood; that’s all I need to know. • I don’t know. 0 of 5
What is this? • Maple • Oak • Walnut • Pine • Don’t know. 0 of 5
What is it? Hackberry Chokecherry Crabapple River Birch Chokeberry 0 of 5
What is it? • Birch • Cottonwood • Big-Toothed Aspen • Silver Maple • Black Cherry 0 of 5
What is it? Black Walnut Buckthorn Bur Oak Boxelder Ironwood 0 of 5
What Is It? • Cottonwood • Green Ash • Hackberry • Elm • Linden 0 of 5
What is it? • Elm • Boxelder • Silver Maple • Ironwood • Linden 0 of 5
What is it? Black Pine Black Cherry Austrian Pine Douglas Fir White Cedar 0 of 5
What is it? 5 • Linden • Sugar Maple • Black Ash • Elm • Green Ash 0