Bleeding bark on trees and other woody plants often leads to concern when it's discovered by tree growers and yard tree owners. Gum or sap draining from a tree trunk or limbs is common in trees in the ...

Honey mesquite (Prosopis glandulosa [Torr.] var. glandulosa) stems were examined to determine the location of gum deposits within the wood and bark. Trees on field sites had been treated either with ...

The jellylike substance oozing from this peach tree is called gummosis and can result from environmental stress, mechanical injury, or disease and insect infestation. Reader Photo Question: This ...

Q: These hard clear bubbles have formed from secretions from a few of my wild cherry trees. [The reader sent photos.] Do you think it is heat related or an indication of pending tree doom? Do other ...

Question: I just noticed an orange jelly-like substance on the trunk of my cherry tree. What is this? Answer: That gooey amber-colored substance is called gummosis. It has the consistency of honey and ...

Q: I recently purchased a home with several mature navel orange trees. One of the trees has about half the bark missing from the trunk and sort of circular looking lesions that ooze sap in the area ...

Ethephon, (2-chloroethyl)phosphonic acid, was sprayed at concentrations up to 69.2 millimolar to enhance gum formation in 1-year-old shoots of mature Prunus cerasus L. cv Montmorency trees. Gum ...

Q: Can you tell me what this is on my grapefruit tree and how to get rid of it? A: Unfortunately, your grapefruit tree has a disease commonly called gummosis (Phytophthora species). This disease is ...