Not for sun in your zone, I don't think- I never get SW injury on apples here in SE NY,Z6. I just read where dogwood borers can be detected early when trunks are painted white, exposing the frass. Not a big issue here as I'm rarely affected anyway. In short, no, not really.

Andrew, do you have any better pictures you can share that show the leaves? Also, cut open a berry and describe if it is a single seed or multiple ones inside.

As always, post a photo of the tree and a close-up of the insects. Also tell us where you live; and if the tree is inside or outside, in the ground or in a container. You may not have what you think; but with that information someone here can probably help you. Without it, I doubt anyone would even venture to guess your problem.

I'm not an expert, so you will have to google it unless someone else chimes in. But those are aerial burr knots which m111 are prone to grow. My trees are 10 years old and they have outgrown them, I.e., it has not been an issue. No pun intended. I did have to battle knot borers but the latex paint wash at the base helped. It is less of an issue now as the trunks are bigger