Hi there

I seem to have endless worry about my hydrangea plant. It's foliage has been steadily snacked on by something all season, but all in all, the plant is healthy.

When inspecting the plant, I found this dead/curled leaf which appears to have a clear sap on it. This is the only leaf like this on the plant and from what I can tell, it doesn't appear to be leaf miner.


Any idea what this could be or if it's cause to worry?

Thanks!