The following are highlights and updates about samples and questions recently received in the Plant and Insect Diagnostic Clinic. Visit the PIDC's Facebook page for updates and more pictures. For more information on a particular disease or insect problem listed, follow the article (hyperlink) cited.
Plant Diseases and Insect Damage
The following highlights represent recent sample submissions from fruit, vegetables, and ornamental plants.
Broadleaf Trees
Oak - bur oak blight
Maple, Tar spot, Physiological scorch, physical injury (crack)
Oak, Iron deficiency, Twolined chestnut borer, Kermes scales
Willow, willow leaf spot
Coniferous Trees
Spruce - Stigmina needle cast, rhizosphaera needle cast, sudden needle drop, spruce spider mites, Spruce budscale
Pine, bark beetle damage
Ornamentals Perennials and Annuals
Rose - rose rosette disease
Viburnum - powdery mildew
Hawthorn - woolly apple aphid, cedar hawthorn rust
Ornamental pear, Botryophaeria canker
Fruit
Raspberry - rednecked cane borer, crown gall
Vegetables
Pumpkin, Bacterial Leaf and Fruit Spot, Powdery mildew, Aphids
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