Help! ID speckles on my leaves? (picture)
Well, not MY leaves. The leaves of my rhododendron. : )
The speckles are whitish yellow, with slightly raised bumps. The bush seems otherwise healthy, and this doesn't seem to affect the other rhododendrons. There is no obvious presence of insect life.
I'm in Pennsylvania, near Philly.
Here's a photo:
Thanks for any help you can offer.