Pieris (Andromeda): Leaf spot categories: Ornamentals Pieris (Andromeda) Pieris (Andromeda) Diseases Shrubs last review date: 2025-06-27 10:38 Biology Leaf spot of andromeda is a fungal disease causing necrotic (dead) spots on the leaves. Spots are circular or angular in outline, and typically are red to brown, sometimes with silvery-gray centers. Fruiting structures of the fungus […]
Pieris (Andromeda): Ramorum leaf and shoot blight (Sudden oak death) categories: Ornamentals Pieris (Andromeda) Pieris (Andromeda) Diseases Shrubs last review date: 2025-06-27 10:40 P. ramorum symptoms on Pieris leavesPhoto by: M. Elliott Biology Ramorum leaf blight is caused by Phytophthora ramorum, the same organism that causes sudden oak death (SOD). In Washington, most cases have […]
Pieris (Andromeda): Root rot & dieback categories: Ornamentals Pieris (Andromeda) Pieris (Andromeda) Diseases Shrubs last review date: 2025-06-27 10:41 Pieris root rot and diebackPhoto by: J.W. Pscheidt Biology Root rot and dieback of andromeda is caused by Phytophthora, a fungus which affects many ornamentals. Typically, plants appear unhealthy, with wilted or discolored leaves that may […]