Missouri Department of Conservation

Plant Diseases

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Plant Diseases

Protect your forests, wildlife habitat and crops. Learn to identify and control or report common plant diseases.

Forest Health Alert: White Oaks Turning Brown in Late Spring

White oak trees sometimes turn brown in late spring. While shriveled, bumpy brown leaves look alarming, they indicate nothing more harmful than the jumping gall, which rarely causes significant damage. Download this forest health alert to learn more. More

Sycamore Anthracnose

Sycamores in your yard looking a little sick? Sycamore trees in locations around the state are being affected by sycamore anthracnose.   More

Thousand Cankers Disease

Because thousand cankers disease (TCD) kills black walnut trees, it poses a serious threat to Missouri’s important black walnut industry. 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. More

Related Information

  • Thousand Cankers Disease of Black Walnut

    Although thousand cankers disease of black walnut trees has not been detected in Missouri as of January 2011, we can estimate its potential economic impacts. This four-page bulletin overviews the loss to the wood-products industry as black walnut trees die, the loss to the nut industry and the loss to communities as street trees die.

  • Forest Health NewsInformation on causes of branch flagging, insect defoliators, exotic insect and disease pests, conifer problems and current disease issues.
Don’t Use Asian Carp As Live Bait!
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