Pacific Northwest prairies have become significantly reduced in extent, and in the Willamette Valley of Oregon, less than one percent of native upland prairies remain. Many species have been impacted by this extreme loss of habitat, including Castilleja levisecta (golden paintbrush), a threatened hemiparasitic forb species endemic to the Pacific...
This publication describes hazelnut orchard weed management practices including flailing, herbicides, intercropping, cover crops, and sucker control. It also briefly describes procedures used during nut fall and harvest.
This publication lists the components of a comprehensive nutrient management strategy and provides nutrition guidelines for mature and new hazelnut orchards.
This publication includes tables that summarize characteristics of the main hazelnut varieties produced in the United States, lists varieties' susceptibility to eastern filbert blight, and shows varieties' compatibility with each other for pollination.
This publication provides a glossary of botanical terms related to hazelnut pollination and describes the flower and nut development process, pollination, and related issues.
This publication provides guidelines for purchasing and propagating planting stock. It describes simple layering, tie-off layering, grafting, and cuttings.
This publication gives a brief introduction to hazelnuts, which are sometimes called filberts. It provides an overview of hazelnut history, growth and production, geographic distribution, and hazelnut industry organizations.
This publication outlines hazelnut orchard design considerations, including density and yield, spacing and arrangement of permanent trees, and loading zones. It also includes a brief description of procedures for establishing a new orchard.