Emerald ash borer found in Benton, Mille Lacs counties

The invasive insect is now in more than half of Minnesota's counties.

September 28, 2023 at 12:06PM
The invasive emerald ash borer was first found in Minnesota in 2009. (Associated Press/The Minnesota Star Tribune)

ST. CLOUD — The Minnesota Department of Agriculture recently confirmed the presence of emerald ash borer in Benton and Mille Lacs counties for the first time, bringing the number of counties in the state infected with the invasive species to 44.

The Benton County infestation was found in a St. Cloud neighborhood and the Mille Lacs County infestation was discovered in Milaca along a set of powerlines.

Emerald ash borer was first found in the state in 2009. The insect larvae kill ash trees by tunneling under the bark. Signs of an infestation include numerous woodpecker holes and tunnels that split open on the bark.

The MDA has issued an emergency quarantine to limit the movement of firewood and ash material out of the area to reduce the risk of further spread. The quarantine includes all of Benton County and the southern part of Mille Lacs County.

A virtual meeting for residents and tree care professionals will be held at 10 a.m. Thursday, Sept. 28.

about the writer

about the writer

Jenny Berg

St. Cloud Reporter

Jenny Berg covers St. Cloud for the Star Tribune. Sign up to receive the new St. Cloud Today newsletter.

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