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Filtering by: Subject Grapes -- Diseases and pests -- Control -- Oregon Decade 1900-1909

Spraying for peach fruit spot

A preliminary bulletin on the prevention of smut on oats

Three species of apple plant lice in Oregon

Some insects injurious to forests. pt. III, Additional data on the locust borer

Some insects injurious to forests. pt. I, The locust borer

Two apple tree borers

Some insects injurious to forests. pt. II, The western pine-destroying barkbeetle