We have a white flowering weeping cherry that I've recently noticed is oozing clear sap (no sign of sawdust) from at least three places about 4' up th...
Weeping Cherry Tree oozing sap #851289
Asked September 26, 2023, 12:40 PM EDT
We have a white flowering weeping cherry that I've recently noticed is oozing clear sap (no sign of sawdust) from at least three places about 4' up the trunk. Two sites are along "seams" where the tree's bark is splitting like stretch marks. (One split is the entire height of the trunk.) The other site shows signs that small branches have been clipped from the area close to the top of the trunk/standard.
I've read this sapping may be due to cankers and that the tree may heal on its own, OR the cankers may need to be aggressively CUT out.
The tree was installed by a previous owner and is likely about 15 years old. It's about 12'-15' tall and wide with a 5.5' trunk/standard. It seems otherwise healthy. We've watered it deeply on a few occasions in the past few weeks to make up for lack of rain. The response of the leaves seem to indicate the water was appreciated.
What do you would recommend: Shall we wait and see or dig in?
Thank you for your time.
Thank you for your question. It sounds as if you have already done some research into this issue. My reading indicates that this is not an uncommon occurrence among cherry trees. The prognosis, like the cause, can vary, but there are some steps you can take to potentially remedy the problem and save the tree. The two sites below are particularly helpful.
This work is supported in part by New Technologies for Ag Extension grant no. 2020-41595-30123 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.