Cherries are among the first trees to shed their leaves in fall. In northern Virginia they are bare by Labor Day. I'd remove that branch.

You might want to think about removal/replacement. The tree has bacterial canker and at a stage of development it will be hard to control without some radical pruning. And even that may not help limit the spread.

Make sure you are selecting cherry varieties that will do best in your location. Cherries can be fussy and disease prone trees so site-appropriate selections are critical to minimize any issues.

btw, it is very helpful to include your geographic location (not zone) in all your posts, as it properly focuses responses.

20 miles south of st louis mo. i learned afterwards about picking a variety that matches your local. the first few years fruit was sparse & the cherries looked like mt Rainiers. then they looked & tasted like bings. i had about 5 years with great yields then this started. i planted several peach trees & this cherry at the same time. the year i planted them we had a 17 year cicada hatch. they grooved moved branches. i wonder if this contributed to this condition. i lost the peach trees to brown rot & leaf curl. at that time i had 20 beehives next to the peach trees so i couldn't spray any fungicides. i never replanted them as the spores can lay in the ground for years. i guess i'll remove this tree. by the time i prune away the damage i'll be left with a stump. thanks for the input.

just bloomed AGAIN