Weeping tree possibly elm

Question

Some of the tree is producing new leaves but some have no leaves at all. I noticed that it produced more pussy willow in the spring what can I do as regards the branches not producing

Answer 1

Check the branches, do the bend or snap off?
If the branches snap off they have died.
You can also scratch the bark of the tree.

https://www.gardeningknowhow.com/ornamental/trees/tgen/tree-scratch-test.htm
https://www.gardeningknowhow.com/ornamental/shrubs/pussy-willow/growing-pussy-willows.htm