Definition of larch casebearer
: a casebearer that is the larva of a minute moth (Coleophora laricella), that lives in a case made of a hollowed silk-lined leaf, and that mines in the leaves of larches sometimes causing severe defoliation
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“Larch casebearer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/larch%20casebearer. Accessed 20 Sep. 2021.
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