Hi
@JenniferKC
Welcome to NGA!
It's hard to clearly see what the leaves and stems look like in this photo. A close-up or two would help.
From your description, it's possible your roses are afflicted with rose rosette virus. Search for information on RRV and see what you think.
I have a couple multiflora roses which have been hit hard by RRV, with most of the branches developing the bushy branching and then dying last year (2022). But some survived and began growing from the base this spring. I applied some imidacloprid granules then to the soil for uptake via the roots. The shoots survived and flowered. I hope the imidacloprid protected them from the midges well enough that they'll regrow next spring. I'll apply it again this fall and in the spring. I did also fertilize them in the spring.
If you think it's RRV, applying imidacloprid to the healthy ones should help protect them from also getting infected.
Keep us posted please!
Pat
