No person, firm or corporation owning or operating any nursery, fruit orchard of any kind, hopyards, flower gardens or ornamental trees shall throw any cuttings or prunings or parts of any fruit trees, nursery stock, ornamental trees, or hop vines into any public road, highway, lane, field or other enclosure, or into any watercourse of any kind; but shall destroy such cuttings or prunings or parts with fire within a reasonable time, except when infested or infected with a contagious pest or disease. Such infested or infected prunings, cuttings or parts shall immediately be destroyed by fire.
Oregon Legal Code