Raised Shiny Brown Patches On Leaves Of Young ‘prunus Dulcis’

Question

These appeared last year. I thought it was a fungus and sprayed it several times. This year the new leaves have come through already affected. How can I get rid of it.

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Answer 1

They may be "gum balls." Here is more:

https://ceventura.ucanr.edu/index4.cfm/%3Ca?blogtag=almond&blogasset=19305

https://www.sacvalleyorchards.com/almonds/trunk-soil-diseases/aerial-phytophthora-outbreaks-in-wet-years/

https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=d453

https://www.gardeningknowhow.com/edible/nut-trees/almonds/growing-almond-nut-trees.htm