Silver Birch trees

What does cankers on silver Birch trees look like and can spores affect Rose bushes nearby?

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1 Comment To "Silver Birch trees"

#1 Comment By Downtoearthdigs On 10/08/2017 @ 8:48 am

http://extension.colostate.edu/topic-areas/yard-garden/cytospora-canker-2-937/ ^[1]
http://www.mortonarb.org/trees-plants/tree-and-plant-advice/help-diseases/canker-diseases ^[2]
https://extension.psu.edu/pests/plant-diseases/all-fact-sheets/cankers ^[3]

I am not sure what is happening to the birch trunks in the pictures, but here is some information on canker diseases in birch and other trees. A university extension agent or arborist may also be able to help you diagnose your tree’s problem.

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URLs in this post:

[1] http://extension.colostate.edu/topic-areas/yard-garden/cytospora-canker-2-937/: http://extension.colostate.edu/topic-areas/yard-garden/cytospora-canker-2-937/

[2] http://www.mortonarb.org/trees-plants/tree-and-plant-advice/help-diseases/canker-diseases: http://www.mortonarb.org/trees-plants/tree-and-plant-advice/help-diseases/canker-diseases

[3] https://extension.psu.edu/pests/plant-diseases/all-fact-sheets/cankers: https://extension.psu.edu/pests/plant-diseases/all-fact-sheets/cankers

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