Peach tree disease
For the last three weeks, I have noticed a couple of my peach trees are oozing sap on the lower part of trunk, and moving up every couple inches (the lower ones are darker and shinier on the top). One turned yellow and died. The other one is still green. Would you be able to help?
By your description it is possible that you may have insect damage by beetles or the trees may have gummosis which can be caused by excess stress on the tree or and actual disease. Tree health is critical not matter what the cause may be.
Here is a link to a Florida fact sheet on gummosis, but I would encourage you to bring in photos and possibly a sample to the Reno Cooperative Extension office for verification. The address is 4955 Energy Way, Reno and you can email photos to firstname.lastname@example.org