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Protect your Missouri woods, wildlife habitat and crops. Learn to identify and control or report common tree diseases and pests.

metallic, emerald-green beetle on ash leaf

Emerald Ash Borer Management

Emerald ash borer is an exotic beetle that kills ash trees. Learn to identify and report EAB in your area.

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Forest Health News

Browse up-to-date bulletins on the causes of branch flagging, insect defoliators, exotic insect and disease pests, conifer problems and current disease issues.

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Oak Decline in Missouri

Large numbers of northern red, southern red, black and scarlet oaks are declining and dying in southern Missouri. Find out why, and learn what you can do about it.

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Periodical Cicadas

Periodical Cicadas

Learn the differences between periodical and annual cicadas, and browse the Missouri appearance forecast and tips for protecting young trees.

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Thousand Cankers Disease

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.

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Photo of tree-branch flagging

Tree-Branch Flagging

Insects, diseases or weather-related injury can cause branches to break and droop. Learn how to identify the causes and what you can do to treat it.

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http://mdc.mo.gov/node/3364