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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.

Topics in this issue: emerald ash borer, thousand cankers disease of walnut, weather impacts on insects and trees, rapid white oak mortality and how you can help researchers, and tips for getting a tree disease diagnosis.

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Browse a year-end summary of issues affecting Missouri forest health.

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Inside this issue: Thousand Cankers Disease of Walnut; Impacts of Cool, Wet Spring; Rose Rosette Disease; Conifer Issues; Boxwood Blight; Drought Impacts Still Expected; Hardwood Borers and Drought; Hypoxylon Canker and Oak Wilt.

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This disease of oaks and other hardwoods is common after drought. Learn to identify and respond to it.

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This disease of oaks is easily spread in the spring. Learn to identify and prevent it.

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Drought and other stresses work together to cause Missouri's urban trees to lose health and vigor over time. Learn to identify, respond to, and prevent urban tree decline.

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Download and review the factors that affected Missouri’s trees and forests in 2012, including invasive forest pests, other insects, diseases and weather.

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Updates on the status of exotic forest pests and diseases, weather related forest health problems, and some other tree disease issues.

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Information on causes of branch flagging, insect defoliators, exotic insect and disease pests, conifer problems and current disease issues.

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Information on periodical cicadas, diagnosing tree diseases, insects and diseases to watch for in the next month.

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http://mdc.mo.gov/node/12746