Narrow Results by:

Subject Specific Filters:

Type:

Other Damage Agents (6)
Diseases (1)

  1. Category:             

    Unknown Cause (3)

  1. Family:                  

    Unknown biotic damage agent (4)
    Unknown cause (3)

Image Specific Filters:

  1. Descriptor:           

    Symptoms (7)
    Damage (1)
    N/A (1)

  1. Commodity:         (show all)

    Conifer (4)
    Herbaceous (1)
    Minor Nuts (1)
    Misc. Tree Care (1)
    Non-Wood Forest Products (1)

Image Setting:

Field (6)
Laboratory (1)

  1. Country:                

    United States (8)
    Serbia/Montenegro (1)

  1. Author:                  (show all)

    Joseph O'Brien (2)
    USDA Forest Service Archive (2)
    Anette Phibbs (1)
    Dragan Nestorovic (1)
    Elizabeth Dorman (1)

Unknown

Kingdom: Other damage agents
Phylum: Other damage agents
Class: Other damage agents
Order: Unknown
Remove Filters: 4 Sizes Available(X) Portrait(X)
9 Images of 7 Subjects View Subject List View Image Details View Thumbnails

first prev Page: next last Display:

Image Subject Name Scientific Name Description
5483100 unknown virus Anemone coronaria 'de Caen' unknown spherical virus
5460046 chlorosis (general symptom)
5454687 dieback Urban tree decline.
1241739 fir and spruce canker Fir and spruce cankers are easily diagnosed by cutting away the bark. An abrupt margin is seen between dead and live cambium.
5031065 spruce decline
5224036 hazelnut brown stain Photo taken May 2007
5031057 spruce decline Severe symptoms of spruce decline on the Chequamegon-Nicolet National Forest. The disease is caused by a complex set of factors that result in decline and death of the tree.
1238005 galls Galling on Dead Eastern White Pine.
1241740 fir and spruce canker Valsa and Leucostoma occasionally cause cankers on large stems.

Page: