The Minnesota Department of Agriculture continues to wage war on emerald ash borer with the help of stingless wasps. This year, the department released more than 182,500 wasps in the Twin Cities metro ...

DES MOINES — Thousands of stingless wasps are being enlisted to slow the onslaught of an imported pest attacking Iowa’s ash trees. Officials with the Iowa Department of Agriculture and Land ...

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 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 ...

State wildlife officials working with Purdue University entomologists are using gnat-sized stingless wasps to combat the spread of the emerald ash borer in Indiana. Purdue graduate student Carlos ...

In the battle against an invasive tree-killing insect native to eastern Asia, state and federal agriculture officials have decided to use a strategy that lets nature do most of the work. The emerald ...

BEAVER ISLAND, MI – Mature ash still fill the swamps and remain part of the tree canopy on Beaver Island, where the invasive emerald ash borer arrived years after the pest insect had already decimated ...

One of the three wasp species the state's Division of Forests and Lands uses are tied to a tree during their release so they can emerge in their own time. Earlier this summer, during a scheduled tree ...