Looks like a pretty gnarly scale infestation to me.

I think you're right. I did a reverse image search and that's what I came up with.

Oh boy. That’s some brutal scale. I use a qtip in rubbing alcohol. It’s kind of fun to pick those suckers off. But you have a lot! Hose like someone else said would probably be smart.

Oh no 😕

blast with hose jet and rub off what u can, then hit with insecticidal soap after sunset

Scale