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Subject "Scurfy scale"
Two common scale-insects of the orchard : the scurfy bark-louse, the oyster-shell bark-louse /
By: Britton, Wilton Everett,
Publication info: [New Haven] :Connecticut Agricultural Experiment Station,1903.
Contributed by: University of Connecticut Libraries (archive.org)
Subjects: Diseases and pests Fruit Lepidosaphes Scurfy scale