Tree Diseases

Tree Diseases in Omaha Nebraska is one of the more common reasons for tree decline. Light signs of tree diseases may be hard to detect. It is important to detect these signs and treat them before they do excessive damage. Often if a tree receives 40% or more dieback from disease it can be tough to recover. Call your local arborist to check out your trees if you see anything unusual.

Take Inventory of Your Trees

Take inventory of your trees and find out what diseases and insects your trees are acceptable to. Leaves, bark and other features can help you identify your trees.  Google may help research information on your tree type. Research preventatives on such diseases and insects to help keep your trees healthy. Contact your local arborist for any questions or concerns.

List of some foliage diseases

anthracnose
Apiognomonia errabunda
Symptoms
Robert L. Anderson

anthracnose
Apiognomonia errabunda
Foliage
Robert L. Anderson

anthracnose
Apiognomonia errabunda
Symptoms
Minnesota Department of Natural Resources

Diplodia blight
Sphaeropsis sapinea
Symptoms
Joseph OBrien

Diplodia blight
Sphaeropsis sapinea
Symptoms
Susan K. Hagle

Diplodia blight
Sphaeropsis sapinea
Symptoms
Susan K. Hagle

Sirococcus blight of conifers
Sirococcus conigenus
Symptoms
Tom Nichols

Sirococcus blight of conifers
Sirococcus conigenus
Symptoms
Joseph OBrien

Sirococcus blight of conifers
Sirococcus conigenus
Symptoms
Robert L. Anderson

fire blight
Erwinia amylovora
Symptoms
John Hartman

fire blight
Erwinia amylovora
Symptoms
Clemson University – USDA Cooperative Extension Slide Series

fire blight
Erwinia amylovora
Symptoms
Rebekah D. Wallace

poplar rust
Melampsora medusae
Fruiting Bodies
USDA Forest Service, Northern and Intermountain Region
Poplar Rust

Whitney Cranshaw

Colorado State University

Bugwood.org

poplar rust
Melampsora medusae
Symptoms
Robert L. Anderson

List of some Declines, Diebacks, and wilt diseases.

oak wilt
Ceratocystis fagacearum
Symptoms
Fred Baker

oak wilt
Ceratocystis fagacearum
Symptoms
USDA Forest Service – Region 8 – Southern

oak wilt
Ceratocystis fagacearum
Infestation
William M. Ciesla

Verticillium wilt
Verticillium albo-atrum
Symptoms
Clemson University – USDA Cooperative Extension Slide Series

Verticillium wilt
Verticillium albo-atrum
Symptoms
Clemson University – USDA Cooperative Extension Slide Series

Verticillium wilt
Verticillium albo-atrum
Symptoms
USDA Forest Service, Northern and Intermountain Region

Dutch elm disease
Ophiostoma ulmi
Symptoms
Minnesota Department of Natural Resources

Dutch elm disease
Ophiostoma ulmi
Symptoms
Robert L. Anderson

Dutch elm disease
Ophiostoma ulmi
Symptoms
Joseph OBrien

bacterial leaf scorch
Xylella fastidiosa
Damage
Nancy Gregory

bacterial leaf scorch
Xylella fastidiosa
Symptoms
Edward L. Barnard

bacterial leaf scorch
Xylella fastidiosa
Symptoms
Theodor D. Leininger