The state Agriculture Department has put Wright County under immediate quarantine after emerald ash borer was found along the I-94 corridor in Clearwater, the first case in that county. Moving firewood and ash material out of Wright County is now prohibited. Officials say they’re not surprised to find ash borer along I-94 because it’s a high traffic area for truckers and travelers. They say they’re certain the pest was brought into Wright County by someone moving infested ash wood. Seventeen Minnesota counties are now under full or partial quarantine to limit the spread of highly-destructive emerald ash borer.