Pitting Wasps Against Beetles

by Sam Evans-Brown, NHPR

Kyle Lombard points out the exit hole from a tetrastichus wasp.


New Hampshire is home to roughly 25 million ash trees. Two years ago, we learned the state is also home to a devastating invasive beetle – the emerald ash borer – which can completely destroy infested stands of ash trees in as little as six years.

Now state foresters are hoping that bringing the pest’s natural enemies over from Asia can save the Granite State’s ash trees.

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