This publication describes factors to consider when deciding to plant a hazelnut orchard and includes a table of native productivity ratings for soil series types in the Willamette Valley.
Currently, the emerald ash borer has been found in trees only in Washington County, where a quarantine prohibits moving ash (Fraxinus) or fringe tree (Chionanthus) wood in or out of the area.
This publication lists the components of a comprehensive nutrient management strategy and provides nutrition guidelines for mature and new hazelnut orchards.
Oregon ash thrives in many areas of western Oregon, from floodplains to foothills. But this key tree is threatened by the spread of an invasive beetle known as the emerald ash borer, which kills ash. This ...