WINONA, Minn. — The Minnesota Department of Agriculture is releasing stingless wasps in Winona to try to control the spread of the invasive emerald ash borer. Ash borer biocontrol coordinator Jonathan ...

The emerald ash borer has arrived in Winona County. A single insect was found on a trap Thursday in Great River Bluffs State Park. According to Park Manager Rick Samples, 15 percent of the park’s ...

The Minnesota Department of Agriculture released stingless wasps in Great River Bluffs State Park on Wednesday to combat the new emerald ash borer infestation, as officials continue to find new ...

WINONA — The Minnesota Department of Agriculture confirms the emerald ash borer has now been found in Winona County. The department also detected the insect at another location in Houston County, in ...

DAKOTA — Eleven Winona County, state and federal officials fanned out Tuesday near Dakota, at the site of the state's first outbreak of emerald ash borer to try to find out how many trees the invasive ...

The Emerald Ash Borer (EAB) has been discovered in a privately owned Ash tree in Winona. Property owners will be responsible for the removal of Ash trees that become infested and dispose of them ...

The wasps are working. In its ongoing fight against the invasive emerald ash borer, the Minnesota Department of Agriculture has released thousands of stingless wasps in the metro area and in southeast ...

The City of Winona is asking for 300 property owners to volunteer to have their boulevard ash trees removed and replaced by another kind of tree for free this spring. The city says it’s trying to ...