Insects & Disease

Common Insects & Diseases in the Fort Collins / Loveland / Windsor, CO Area

Aphids

Armillaria root rot

Ash/Lilac borer

Bacterial wetwood

Black canker on Aspen

Chlorosis

Codling moth

Cottonwood borer

Cytospora

Dutch elm disease

Elm flea weevil

Elm leaf beetle

Emerald ash borer (currently only found in Boulder county but threatening Fort Collins)

Fire blight

Ips beetle

Leaf curl

Mountain pine beetle

Peachtree borer (Crown borer)

Pine wilt

Sooty mold

Thousand cankers disease

Verticilium wilt

Walnut twig beetle

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