San Jose scale n. A very destructive scale insect (Aspidiotus perniciosus) that infests the apple, pear, and other fruit trees. So called because first introduced into the United States at San José, California.
... need not pause with the other four hundred and more insect citizens of the apple-tree. Some of them, as the San Jose scale, are not peculiarly apple-tree insects. My tree has another crew of inhabitants, and to this company we may ... — The Apple-Tree - The Open Country Books--No. 1 • L. H. Bailey
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