Knowledgebase

Amber bubbles on peach tree #933302

Asked May 28, 2026, 1:17 PM EDT

I have a three year old dwarf contender peach tree who I just noticed has several amber color sticky:tacky bubbles on its trunk and larger limbs. Probably between 10-15 ranging in size from a dot to half dollar size. Should I be concerned or do anything? Do I remove the ozzing areas? Is it harmful? If I need to treat what is an organic natural way to address it? The tree looks mostly healthy: no damage to bark or leaves however it does have less leaves (30% less) than it has in the past. Our three other peach tree are not impacted or our apple trees.

Hennepin County Minnesota

Expert Response

The following web pages may explain your issue. You will need to inspect the resin or gummosis areas to see if you can determine what caused them in the first place. 
https://extension.usu.edu/forestry/resources/forest-products/ask-an-expert/peach-tree-gummosis
https://www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/insects-pests-and-problems/diseases/cankers/gummosis-of-fruit-trees
Linda G Tenneson, Benton County Extension Master Gardener & Tree Care Advisor Replied May 28, 2026, 2:38 PM EDT

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