Jen, that doesn't look good, but could you give us just a bit more info-such things as where in the world this is, maybe a shot of the entire plant so that we can better ID the species....that sort of thing. And history-so far as it is known-is always helpful. It does appear to be something in Prunus-the cherries, plums, etc. and they are notoriously prone to a number of fatal bacterial and fungal pathogens. Just not long-lived plants. But another pic showing more of the plant might just tell me this is not that, which would steer this in a whole new direction.

If those are petals on the grass Prunus is further supported.

Here is a picture of the portion that is blooming/budding.

We live in CO and don't have any history on the tree. We just moved into our house at the beginning of the year. We have been facing a lot of moisture in the Denver area where we are located - two storms with at least 16" of snow.

Here another angle showing the marks from my original pictures.

If it is bacterial and/or fungal pathogens, is there a way to treat them? Thank you for responding and for any additional information you might have.

Jen, I must confess I still can't tell what you've got there. Those elliptic, oblong leaves don't say cherry to me, nor do what I think to be the flowers I'm seeing. Perhaps someone more knowledgeable than I about Rocky Mnt. landscape plants will chime in with more ID info. But here's the deal: That kind of issue like shown on your tree tends to be serious, involving the tree's vascular system. Treatment is likely to fail, assuming there is any to even try. I think not, and would probably not throw any money, time, or energy into this plant, beyond what it takes to saw it down.

Perhaps another member will offer some better news...but I doubt it.

I truly appreciate your input. Thank you for taking a look and responding.