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CUES: Center for Urban Ecology and Sustainability

Diseases of Deciduous Trees: Elm - Dutch Elm Disease

Disease cycle of Dutch elm disease. Photo courtesy of American Phytopathological Society.

Overland spread of the disease is caused by bark beetle feeding in the upper canopy. Beetles commonly feed in branch crotches. Photo courtesy of Robert Blanchette.

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Last modified on March 06, 2013