Black current has white-colored blisters on one of the main branches. My immediate thought was white Pine blister rust, but I looked at some photographs of that, and this doesn’t seem to match. Any ideas or advice? Thank you so much.
If it makes a difference, I live in Maryland, USA (USDA Zone 7b).
by RIPCurrants
2 Comments
looks like scale – insect issue
Looks like a scale insect issue. Gently scrape off as much as you can.