Pieris (Andromeda): Leaf spot categories: Ornamentals Pieris (Andromeda) Pieris (Andromeda) Diseases Shrubs revision date: 2022-12-03 12:00 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 may […]
Pieris (Andromeda): Ramorum leaf and shoot blight (Sudden oak death) categories: Ornamentals Pieris (Andromeda) Pieris (Andromeda) Diseases Shrubs revision date: 2022-12-03 12:00 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 been […]
Pieris (Andromeda): Root rot & dieback categories: Ornamentals Pieris (Andromeda) Pieris (Andromeda) Diseases Shrubs revision date: 2022-12-03 12:00 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 be […]
Pieris (Andromeda): Black vine weevil categories: Ornamentals Pieris (Andromeda) Pieris (Andromeda) Insects Shrubs revision date: 2023-04-04 12:00 Black vine weevil adult and leaf damagePhoto by: A.L. Antonelli Biology Characteristic damage by black vine weevils includes irregular, ragged notching of leaf margins by adults and minor to severe root and bark damage by larvae. The adult […]