OWS links to internal and external Insect and Disease related publications

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Disease Information

Sudden Oak Death

Dutch Elm Disease

Oak Wilt

Cedar Rust Diseases of Ornamental Plants

Verticillium Wilt of Landscape Trees and Shrubs

Rhizosphaera Needlecast on Spruce

Needle Diseases on 2-Needled Conifers in Ohio

Leaf Diseases on Ornamental Trees and Shrubs

Diplodia Tip Blight of Austrian, Red and Scotch Pine

Cytospora Canker of Spruce

Anthrancnose Leaf Blight of Shade Trees

Insect Information

Powderpost Beetles

Insect and Mite Control on Woody Ornamentals and Herbaceous Perennials

Willow Galls

White Pine Weevil

Spring and Fall Canderworms

Spider Mites and Their Control

Roundheaded and Flatheaded Borers

Redheaded Pine Sawfly

Pine Needle Scale

Periodical and "Dog-Day" Cicadas

Multicolored Asian Lady Beetle

Maple Bladder Gall Mite

Gypsy Moth in Ohio Landscapes

Giant Caterpillars

European Pine Sawfly

Eastern Spruce Gall Adelgid

Eastern and Forest Tent Caterpillars and Their Control

Cottony Maple Scale and Its Management

Conifer Bark Beetles

Cooley Spruce Gall Adelgid on Colorado Blue Spruce

Cooley Spruce Gall Adelgid on Douglas-Fir

Controlling the Gypsy Moth with BT (Bacillus thuringiensis)

Bronze Birch Borer Management

Boxelder Bug

Birch Leafminer

Bagworm and Its Control

Assessing Options for Managing Gypsy Moth

Aphids on Trees and Shrubs

Miscellaneous

Portable Sawmills