Sap oozing from my cherry tree.

Asked November 13, 2019, 4:19 PM EST

I have a yellowish sap oozing from my cherry tree. I notice a big branch has died. What is it? Should I destroy the tree? Will my Fuji Apple tree get this disease?

Clark County Nevada trees and shrubs

1 Response

From your description, it sounds as though your tree is suffering from Gummosis which is very common in stone fruits. Gummosis can be caused by water stress and insect attacks where you will find hole underneath the pitch masses or sometimes disease-oriented. Most cases in our area it is a moisture-related issue especially with cherry that is more native to soils with high amounts of moisture available. It is best to water to a depth of at least 12 inches deep and under the entire area under the tree canopy and somewhat beyond (with well-established trees).

This will not spread to your apple tree as it is not in the same family. If you are having stress or moisture issues then you apple will stow different signs of water stress or insect attack.
I hope this information is helpful. Please let me know if you have further questions.
https://plants.usda.gov/factsheet/pdf/fs_prvi.pdf
https://www.extension.uidaho.edu/nursery/Landscape%20problems/Bacterial%20Canker%20of%20Stone%20Fruit%20Trees.pdf

https://colorado.agrilife.org/watering-valuable-landscape-trees/

https://extension.colostate.edu/docs/pubs/garden/02926.pdf