Bark Necrosis, Dieback, "Blackstem" (Cytospora, Phomopsis, Dothichiza)

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Ostry, M.E.; Wilson, L.F.; McNabb, H.S.; Moore, L.M. A Guide to Insect, Disease, and Animal Pests of Poplars. United States Department of Agriculture, Forest Service. Agriculture Handbook 677. January 1989. 118 p.

Importance - These fungi cause dieback, bark necrosis, and cankers on branches and main stems of native and introduced poplars. Unrooted hardwood cuttings can be damaged during storage or killed shortly after planting by Cytospora and Phomopsis.

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