Hi Jeanmarie,
Thank you for your cherry tree pest question. I cannot definitively tell from your photos; however, it may be black cherry aphid. This pest feeds on the tips of new growth causing curling and distortion. The aphid produces a sticky substance referred to as honeydew, which can attract other insects.

This pest and management options are described in the following publications. You can compare the information and photos to your tree.

Cherry-Black cherry aphid | Pacific Northwest Pest Management Handbooks (pnwhandbooks.org)

Tree Fruit Insect Pest - Black Cherry Aphid (psu.edu)

For a definitive diagnosis of the problem, I recommend you contact the Plant Clinic at the OSU Deschutes County Extension in Redmond. You can call the phone number listed below or send your photos and question to <personal data hidden>

The person on duty will review your information, conduct necessary research, and contact you with findings and management options.

Summer Hours: Monday through Thursday, 9:00 to 5:00 pm, Friday 9:00 am to 1:00 pm.

Phone:<personal data hidden> x79630

We always welcome your home garden questions at the OSU Plant Clinic.