Pennsylvania State University College of Agricultural Science Plant Patholgoy
Pennsylvania State University College of Agricultural Sciences College of Agricultural Sciences


Gary Moorman
Professor of Plant Pathology

Tulip Tree Diseases

Disease Symptoms Pathogen/Cause Management
Powdery Mildew White fungal growth forms on the upper surface of leaves. Erysiphe or Phyllactinia No control is recommended since little damage occurs.
Sooty Mold Black fungal growth covers the leaf surface where a shiny, sticky material has been deposited. Sooty mold is not a pathogen. It is merely growing on honeydew secreted by aphids higher up on the tree which has dripped onto lower leaves. Control aphids.
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Last modified Monday, May 19, 2008
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