I have a 3-4 year old almond tree. It seems to be very healthy. I live in California and we have had a wet spring with warm weather intertwined. Most of the almonds have dropped and the few that are still on the tree have droplets of clear sap on the outside. What is wrong?
Why Have Most of My Almonds Dropped.
Certified GKH Gardening Expert
The dropping of fruit was reported in the California region.
The links below have more information.
I also found a links with information on pest and disease of Almond Tree.
Though I cannot verify the exact cause of the clear sap, the Leaffooted plant bug causes this damage and the oozing of sap from the Almonds is generally clear.