![]() ![]() VIDEO created by Ryan Contreras for “Landscape Plant Materials I: Deciduous Hardwoods and Conifers or Landscape Plant Materials II: Spring Flowering Trees and Shrubs” a plant identification course offered by the Department of Horticulture at Oregon State University Profile Video: See this plant in the following landscape: Cultivars / Varieties: Oaks are susceptible to many diseases including oak wilt, chestnut blight, shoestring root rot, anthracnose, oak leaf blister, cankers, leaf spots, and powdery mildew. Insects, Diseases, and Other Plant Problems: Insects that may potentially be troublesome include scales, oak skeletonizer, leaf miner, galls, oak lace bugs borers, caterpillars, and nut weevils.
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