A discussion about the three major foliar pathogens of poplar trees identified in the Pacific Northwest; rust, Marssonina leaf spot, and shoot blight. The discussion includes descriptions of the pathogens, damage, life cycle, and controls for two of the pathogens mentioned.
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April-May-June 1982 Vol. 6, Issue 2 Page 6
Harrison L. Dooley Research Plant Pathologist Horticultural Crops Research Laboratory, Corvallis, OR 97330