fungus ?? on 2 1/2 year old peach tree

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hoodiacake Glendale, AZ(Zone 9a) Aug 04, 2015

Help this is spreding fast. The clear lumps are hard not soft and sticky. It is all over. Trunk , branches. Any ideas. I am in Phx az and it is very Hot 112.

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luis_pr Hurst, TX(Zone 7b) Aug 04, 2015

Gummosis perhaps?

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Diana_K Contra Costa County, CA(Zone 9b) Aug 05, 2015

If you remove them (at least one, to check) is there a hole under it? This would be a borer.

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hoodiacake Glendale, AZ(Zone 9a) Aug 05, 2015

Thank you both so much for the help .!!!! I took several pieces off my tree and uses a magnifying glass to see if their were any holes. No holes or signs of sawdust.so may not be bores. I talked to Jimmy at the nursery and showed him pictures. He said it was fungus. Not specific. What I have found on the web ,my tree most likely does have gummosis. Not good !!!no cure. Jimmy from the nursery suggested a Copper Fungicide spray. I will try it this weekend . it has been to windy to do any spraying. Just have to try it. Sure will hate to loose this Amazing peach producers. This was a stunning crop. And this tree is just getting started. Thanks again.

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Diana_K Contra Costa County, CA(Zone 9b) Aug 06, 2015

Gummosis is not a disease.
It is a symptom. The tree is trying to remove something, so produces excess sap, which oozes out though the bark. The more obvious example is when a boring insect tries to get in the tree pushes it back out. With no visible hole it is not something as large as an insect, but could very well be a disease.
Here is some research for you. There are a lot of pests and diseases that attack fruit trees.

http://www.ipm.ucdavis.edu/PMG/GARDEN/FRUIT/nectarines.html

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