Thousand Cankers Disease

Tree Disease

Help Keep Missouri TCD-free!

Because thousand cankers disease (TCD) kills black walnut trees, it poses a serious threat to Missouri’s important black walnut industry. Fortunately, we've seen no evidence of it in our state. Early detection will be key to controlling its spread. You can help keep TCD out of Missouri by not moving firewood and other untreated walnut wood products, and by identifying and reporting early symptoms and signs of the disease. Use this information to help keep Missouri TCD-free — and our black walnut industry strong.

TCD has been detected in at least five eastern states (North Carolina, Ohio, Pennsylvania, Tennessee, and Virginia) and nine western states (Arizona, California, Colorado, Idaho, New Mexico, Nevada, Oregon, Utah, and Washington). TCD survey and detection work is ongoing.

In This Section

Estimating TCD's Economic Impact (pdf, 405 KB)

Although TCD has not been detected in Missouri, we can estimate its potential economic impact. This four-page bulletin overviews the losses.

ID Thousand Cankers Disease

Use this information to identify TCD symptoms and report evidence.

TCD Frequently Asked Questions (pdf, 745 KB)

Updated in March 2014, this two-color, illustrated publication answers frequently asked questions about thousand cankers disease, which has not yet been found in Missouri.

Thousand Cankers Disease Brochure (pdf, 6 MB)

Because thousand cankers disease (TCD) kills black walnut trees, it poses a serious threat to Missouri’s important black walnut industry. Learn to ID and report early symptoms and signs.

TCD Kills Black Walnut Trees

Learn what you can do to identify and report symptoms of thousand cankers disease (TCD) in Missouri. Our state's black walnut industry depends on early detection and control.

Thousand Cankers Disease Action Plan (pdf, 489 KB)

The Thousand Cankers Disease Action Plan outlines monitoring, detection, reporting and response activities specific to thousand cankers disease of black walnut.

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