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Diseases of Deciduous Trees: Elm - Dutch Elm Disease

Initial infections caused by bark beetle feeding appear as yellowing or wilting branches. These individual branches are usually referred to as flags.

Brown curling leaves appear as the tree wilts. Photo courtesy of Robert Blanchette.

Trees may wilt rapidly during the summer months, causing complete defoliation of the tree.
Photo courtesy of University of Minnesota Plant Pathology Department.


Back to Diseases of Deciduous Trees or Dutch Elm Disease


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Last modified on March 06, 2013