Q.My River Birch Are About 15 Yrs Old And Have Leafed Very Well Every Summer Now On June 27 No Leaves Appear. What Can Be Done To E
ncourage leaf growth ? Thank u. Diane my e mail address is dicharlap@verizon.net

Certified GKH Gardening Expert
Unfortunately, your photos did not come through. I will be unable to assess the damage.
There are several things that can cause this, and the tree will need to be well inspected for signs of what could have caused the death of the tree.
Here is an article that will give you some of the reason that this can happen:
https://www.gardeningknowhow.com/ornamental/trees/tgen/sudden-tree-death-causes.htm