Common Tree Diseases and Infestations in Denver
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- APPLE – Diseases: Fire blight bacteria (main disease)
By Ninjatacoshell – Own work, CC BY-SA 3.0
Leaf Curl Aphids, Photo By Jeffrey Hahn
Lilac Ash Borer, Steve Katovich, Bugwood.org
- RESIDENTIAL COTTONWOOD TREES: Have an average life expectancy of approximately 30 years. Known to develop Cytospera Canker, Bacterial Wetwood.
Cytospera Canker, Picture attribution: Photo courtesy of Missouri Botanical Garden
Bacterial Wetwood (1), Photo by J. Walla
Bacterial Wetwood (2), Photo by W.R. Jacobi
Thyronectria Canker, Picture attribution: Photo courtesy of Colorado State University Extension
Plant Bug, Photo courtesy of Colorado State University Extension