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Walnut Twig Beetles Carry Fungus
Ash trees have been the target of the emerald ash borer for months now, but now another tree is under attack. Local 12 Meteorologist Scott Dimmich has a look at the fungus now among us thanks to the walnut twig beetle.
While the emerald ash borer continues to infest Tri-State ash trees, a new pest has shown up in Butler County. The Ohio Department of Agriculture is trying to trap the walnut twig beetle, which carries a fungus that can kill walnut trees.
They immediately can infect the trees with a fungus. They create little dead areas called cankers. Even though the cankers are very small, if you get enough of them, they can kill an entire tree.
The fungus is the reason for 100 of these traps deployed in a grid across Butler county. But the walnut twig beetle is very different than the emerald ash borer or the asian longhorned beetles that have infested trees in Clermont County.
The emerald ash borer does not contain a fungus. It's a tree killer by itself. By the way, it's the same as the asian long-horned beetle.
So, how do you know if your walnut tree has the fungus?
What people need to be looking for is the walnut tree showing a thinning canopy, and of course, severe die back. If they have a walnut tree with severe die back, but is then trying to regrow itself, farther down the tree, they may see this regrowth occurring. That would be something we'd all like to know about.
There is no known treatment at this time for thousand cankers disease. And the Ohio Department of Agriculture is very much in a discovery phase. So, if you suspect one your walnut trees in your backyard is infected with the disease, you're encouraged to leave it alone and contact the Ohio Department of Agriculture at 855-252-6450 or e-mail to firstname.lastname@example.org.
For more info, visit www.agri.ohio.gov.