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The emerald ash borer (EAB) has devastated ash trees across North America. But researchers in Ohio discovered something unexpected — some ash trees are surviving. These ‘lingering ash’ not only resist EAB but can even kill its larvae.
Scientists suspected genetic resistance and tested their theory by cloning and crossbreeding surviving trees. The result? Offspring even more resistant than their parents.
Now, researchers are developing seed orchards of resistant ash trees in an attempt to restore forests. This discovery doesn’t just offer hope for ash trees — it also provides a blueprint for battling future invasive species.
This segment was produced in partnership with the Points North podcast and the Boardman Review.
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Featured image: Emerald ash borer tree. (Photo Credit: Great Lakes Now)