LANSING, Mich. (Michigan News Source) – Invasive pests are being shown the door in Michigan.

The Michigan Department of Agriculture and Rural Development (MDARD) and the Michigan Invasive Species Program have announced a new firewood quarantine aimed at preventing invasive insects and plant diseases from damaging Michigan’s agriculture, forests and natural resources.

Beginning Jan. 1, 2027, untreated firewood from outside Michigan will no longer be allowed into the state.

The quarantine will not apply to firewood that has been properly heat-treated and certified by MDARD, another state’s agriculture department or the U.S. Department of Agriculture.

“Firewood movement is one of the most common ways invasive pests and diseases can spread to new areas, often without anyone realizing it,” said MDARD Director Tim Boring. “Preventing the introduction of invasive pests is far more effective than trying to manage an established infestation. This new measure is an important step in preventing harmful pests from entering Michigan and protecting our forests, our agricultural resources, and the communities, industries and recreational opportunities they support and Michiganders enjoy.”

Michigan’s firewood quarantine follows the launch of the state’s Invasive-Free Firewood Certification Program. The voluntary initiative allows Michigan producers who properly heat-treat their firewood to place a “Certified Invasive-Free” seal on their products.

Michigan joins Minnesota, New York, Wisconsin and other states that restrict firewood brought across their borders. Requirements vary by state.