Insects & Diseases

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Disease fact sheets (2012)
Insect Fact Sheets (2012)
Symptoms of Emerald Ash Borer Infestation
Emerald Ash Borer
Magnolia Scale
Armillaria Root Rot and Native Oaks
Cottony Maple Scale (Pulvinaria Innumerabilis)
Viburnum Crown Borers (Synanthedon viburni and Synanthedon fatifera)
Spruce Gall Adelgid
Elm Leaf Beetle (Xanthogaleruca luteola)
Carpenter Ants (Camponotus pennsylvanicus)
Periodical Cicadas (Magicicada septendecim)
Slugs
Scale Insects
Gypsy Moths
Pine Sawflies
Pine Moths
Mites
Minor Plant Pest Problems
Japanese Beetles
Honeysuckle Aphid (Hyadaphis tataricae)
Honey Locust Plant Bug (Diaphnocoris chlorionis)
Cankerworms
Bronze Birch Borer (Agrilus anxius)
Black Vine Weevil (Otiorhynchus sulcatus)
Boxelder Bugs (Leptocoris trivittatus)
Aphids (Aphis spp.)
Asian Longhorned Beetle (Anoplophora glabripennis)
European Elm Flea Weevil (Orchestes alni)
Borers
Plant Galls
Wetwood
Verticillium Wilt
Spruce Diseases
Diplodia Tip Blight
Powdery Mildews
Pine Diseases
Oak Wilt
Ground Cover Diseases
Cedar-Apple and Related Rust Diseases
Canker Diseases
Black Knot of Ornamental Cherry and Plum
Apple Scab
Tent or Web-Making Caterpillars
Bagworms (Thyridopteryx ephemeraeformis)
Ash Flower Galls
Juniper Tip Blight
Fire Blight
Dutch Elm Disease
Anthracnose of Shade Trees
Emerald Ash Borer Identification