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Published May 25, 2010, 12:56 PM

Walnut quarantine declared in Missouri

JEFFERSON CITY, Mo. — State officials want to keep a disease that is devastating black walnuts in the west from spreading to Missouri. That’s why the Missouri Department of Agriculture has issued a black walnut quarantine.

JEFFERSON CITY, Mo. — State officials want to keep a disease that is devastating black walnuts in the west from spreading to Missouri.

That’s why the Missouri Department of Agriculture has issued a black walnut quarantine.

The department says the disease could cost the state more than $850 million in losses over a 29-year period.

The Jefferson City News Tribune reported that the disease is caused by a fungus that attaches to walnut twig beetles. That fungus creates patches of dead tissue.

Under the ban, Missouri is barring all walnut nursery stock, budwood, scionwood, green lumber, firewood and other living or dead plant material from nine states. Those states are Washington, Oregon, California, Idaho, Utah, Arizona, New Mexico, Nevada and Colorado.

Exceptions to the quarantine include things like nuts and some lumber.

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