Aspen trees dying from top down
I have two separate clumps of aspen trees in our yard. The group near the street has died over the past two years, beginning at the top and working down. The tree (two forks) near the house is now beginning to dye at the top. Is there a way to save the one beginning to die? The other group has completely died. I've read, but not sure what the issue is: fungus, beetles, drought, too much water, etc. I also read that if they die they should be removed so the reason they are dying won't spread. One ones that are now dead, have may suckers now grown near these. Any advice or suggestions for say an arborist that may be able to identify the problem?
Jefferson County Colorado
I agree that it may be helpful to have a certified arborist take a look at your trees.
Here is a link which will help you find an ISA (International Society of Arboriculture) certified arborist near you: https://www.treesaregood.org/findanarborist/findanarborist
If that doesn’t work well, I might also suggest trying an arborist certified with this organization: https://www.asca-consultants.org/search/custom.asp?id=381
Thank you for your response and information. To answer your questions: On the multiple (3) forks that are currently dead I do not see any holes or dripping sap. However, when I pull off some of the bark there are what appears worm lines? I attached a photo of these lines.
Also, the other large (2) fork tree that is beginning to die back from the top: I do not see any holes or dripping. The leaves look very healthy. This tree is located near the house. Possibly not getting enough deep watering. I only water it does get is from our flower bed sprinklers or rain and snow.
The Poplar Borer: https://digitalcommons.usu.edu/cgi/viewcontent.cgi?referer=&httpsredir=1&article=2360&context=extension_curall
More information on shade tree borers from CSU Extension: https://extension.colostate.edu/docs/pubs/insect/05530.pdf
A little more info on watering aspen: https://forestry.usu.edu/files/utah-forest-facts/aspen-how-to-grow-a-good-tree-in-a-bad-situation.pd...