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Stingless Wasp Attack On Emerald Ash Borer Working In Minn.



To stop the emerald ash borer from killing trees in Minnesota, the state brought in a natural predator two years ago…and the tactic seems to be working.

Experts with the Minnesota Department of Agriculture have found proof that stingless wasps are breeding, and spreading through the area. The wasps attack the eggs and larva of the ash borer. They were released in Houston and Winona Counties in 2011, and this fall, the M-D-A found wasp larvae on trees that had been sampled for the ash borer. That wasp is the ash borer’s only known natural enemy.



A native of Prairie du Chien, Brad graduated from UW - La Crosse and has worked in radio news for more than 30 years, mostly in the La Crosse area. He regularly covers local courts and city and county government. Brad produces the features "Yesterday in La Crosse" and "What's Buried on Brad's Desk." He also writes the website "Triviazoids," which finds odd connections between events that happen on a certain date, and he writes and performs with the local comedy group Heart of La Crosse. Brad been featured on several national TV programs because of his memory skills.

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