You know what it looks like… but what is it called?
TAKE THE QUIZ“maple scale”
We have one entry that includes the term maple scale.
cottony maple scale
noun: a brown oval soft scale (Pulvinaria innumerabilis) that in summer becomes covered with a white cottony secretion beneath which its eggs are laid, that is widespread in North America, and that attacks and often kills various native and cultivated trees and shrubs
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Merriam-Webster unabridged
