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 Last Update 02/04/07

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How do I know if my tree has elm yellows?
What can I do if my tree has wetwood?
 

Question

 

How do I know if my tree has Elm Yellows? 

Answer You can test for elm yellows by cutting a small potentially infected branch and placing it in a sealed glass jar. After a couple of hours, open the jar and smell inside to see if you detect a wintergreen odour. This is a telltale sign.

If your question isn't answered here, send it to us!
Or visit the elm yellows section of elmcare.com.

 

Question What can I do if my tree has wetwood?
Answer In, general, there is not a lot that you can do about Wetwood. Wetwood is caused by a bacterial infection and is very common in elms and many other species. The infection causes moisture to be retained in the wood and also produces metabolic gases that increase the internal pressures in the tree. Periodically the liquid will be forced out of the tree through wound sites. The liquid oozes out and down the tree, where other organisms colonize it. This liquid is called slime flux and is known to have a foul odour. 

Wetwood becomes a problem only when enough infection sites occur on the tree to compromise its structural integrity. A professional or consulting arborist should judge this. Otherwise, wetwood can be viewed as somewhat beneficial, as the moist environment that it creates in the tree helps to prevent decay fungi from colonizing the tree.

If your question isn't answered here, send it to us!
Or visit the wetwood section of elmcare.com.

 


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