Great Lakes researchers mobilize wasps to combat emerald ash borer

Researchers are increasingly recruiting different wasp warriors in the battle against the emerald ash borer, a destructive, tree-eating beetle that has infiltrated the entire Great Lakes region.

Costly insecticides, tree-removal strategies and bans on moving firewood have provided some defense against the critter.

But a bug-on-bug battle strategy appears to hold promise.

Emerald Ash Borer found in La Grange

(IL) Chicago Tribune – They’re metallic green, can fit on a penny and are now a threat to the thousands of ash trees in the Village of La Grange. According to Ryan Gillingham, La Grange’s director of public works, multiple adult Emerald Ash Borers were found in one of the six traps the village has maintained for detecting the beetle. More

Crews in St. Paul cut down trees infested with ash borers

(MN) Minneapolis Star-Tribune – Chain saws and experts are converging in the Twin Cities in the fight against the emerald ash borer. In St. Paul, foresters identified eight more infested trees Tuesday as workers continued to remove dozens of others fatally damaged by the bug that, first found in St. Paul May 13, threatens the state’s 900 million ash trees. So far, 67 trees have been either taken down this week or targeted for removal in an effort officials hope will thwart the insect that has killed tens of millions of trees across the Midwest and southern Canada in the past seven years.