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Subjects: Apples Diseases and pests; apples; bark beetles; insect control; insect pests; pest control; control methods; plant pests; leafrollers; leaf skeletonizers; leafminers; grasshoppers; scale insects; boring insects; spraying; horticultural oils; sticky traps; spraying equipment; arsenicals</div>
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<dl><dd>Quaintance, A. L.</dd>
<dd>Siegler, E. H.</dd></dl></div>
Internet Archive identifier