SPRINGFIELD, Ill. (AP) -- The Illinois Department of Agriculture has quarantined 18 counties in northern Illinois in an effort to limit the spread of a tree-killing beetle.
The emerald ash borer is a small metallic-green insect that was recently sighted in LaSalle and DuPage counties. This week beetles were found in ash trees in a Glendale Heights shopping center.
The expanded quarantine prohibits the removal of ash wood from Illinois' 18 northeastern-most counties, including Cook, DeKalb, DuPage, Lake, Kane, Kankakee and Will counties.
It also requires waste haulers to cover products from infested spots within the quarantine area during transport until August. That's the end of the beetle's flight season.
The insect has been blamed for the loss of about 20 million ash trees in the Midwest since it was first spotted in the region in 2002.