willow louse

noun

Definition of willow louse

: a plant louse that infests the willow especially : an aphid (Clavigerus salicis) common in the U.S.

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Cite this Entry

“Willow louse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/willow%20louse. Accessed 4 Dec. 2021.

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