Redbud tree inquiry

Question

When the leaves first came out in spring, they were small but green. Now the leaves coming out on the ends of the branches are small, yellow, and deformed and they fall off the tree quickly.

Answer 1

Deformed leaves are often due to pests or disease.
These articles will help you.

https://www.treehelp.com/redbud/
https://www.gardeningknowhow.com/ornamental/trees/redbud/caring-for-redbud-trees.htm