Looks like caviar!

Delaware, OH

A willow tree next to my pond has black clumps of stuff on it that look like caviar! They were present last year, too. I believe it is damaging the tree because the areas where I see it haven't come back well. What do you think?

Dublin, CA(Zone 9a)

A picture would really help. Some types of scale are that color, but I'd have to know what the clump looked like, if it was like a big mound of black stuff then it can't be, but if it's more like a single layer of little bumps on a branch then it could be scale.

Delaware, OH

This shows the tree. The close-up is less clear, but I can send that along, too.

Thumbnail by frogandtoad
Dublin, CA(Zone 9a)

Well, it's for sure not scale!

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