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Diseases of Trees and Shrubs


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The following information is intended as a general reference on the identification and management of common diseases in Missouri. The images and information should not be used as a substitute for accurate diagnosis by a qualified diagnostician. Help is available at the Extension Plant Diagnostic Clinic at the University of Missouri.
When the magnifying glass icon magnifying glass icon is provided with a disease description, clicking the icon will link to more detailed information.

  • General Problems Common to All Species of Trees and Shrubs
  • Common Problems of Trees and Shrubs (listed by species)
  •  
    A - B - C - D - E - F - G - H - I - J - K - L - M - N -

    O - P - Q - R - S - T - U - V - W - X - Y - Z


    A
     

    Arborvitae

    Ash

    Azalea and Rhododendron


    B
     

    Barberry

    Basswood (see Linden)

    Birch

    Buckeye or Horsechestnuts


    C
     

    Catalpa

    Cherry, flowering and wild black cherry

    Cottonwood and Poplar

    Crabapple (ornamental)


    D
     

    Dogwood


    E
     

    Elm

    Euonymus


    F


    G


    H
     

    Hackberry

    Hawthorne

    Holly

    Honeylocust


    I
     

    Ivy, English or Baltic


    J
     

    Japanese pagoda tree

    Juniper


    K


    L
     

    Lilac


    M
     

    Magnolia (tulip tree)

    Maple

    Mimosa (Silk tree or Albezia)


    N


    O
     

    Oak


    P
     

    Pachysandra

    Pear (ornamental) Includes Bradford and other cultivars of callery pear

    Pecan

    Pine

    Plum (ornamental)

    Poplar (see Cottonwood)

    Privet

    Pyracantha


    Q


    R
     

    Rhododendron (see Azalea and Rhododendron)

    Rose

    Russian Olive


    S
     

    Spirea

    Spruce

    Sweet Gum

    Sycamore (Plane)


    T


    U


    V
     

    Viburnum, Snowball

    Vinca (Periwinkle)


    W
     

    Walnut, Black

    Willow


    X


    Y
     

    Yew


    Z

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    University Outreach and Extension
    Email: plantclinic@missouri.edu