Hazelnuts and Nut Crops

Growing Hazelnuts in the Pacific Northwest


A series of publications covering all aspects of hazelnut production.

A Basic Guide to Pruning Hazelnut Trees

Educational Document

Training is a term applied to trees from planting up to 4-5 years of age, and is used to encourage a strong tree structure capable of supporting heavy crops, and withstanding ice and snow loads.

Harvesting, Handling, and Storing Nuts from the Home Orchard


This publication describes the proper harvesting, handling, and storing of home grown orchard nuts. These nuts include Hazelnuts, Walnuts, and Chestnuts.
Botany and Plant Pathology Field Laboratory

Fruit and Ornamental Disease Management Testing Program

Online Resource

The primary purpose of the fruit and ornamental disease management testing program is to provide Oregon growers, Extension Faculty, and Field Representatives with unbiased information on the relative efficacy of fungicides, fungicide schedules or cultural practices for control of plant diseases. Treatments evaluated are not restricted to chemical fungicides and may involve use of cultural controls, biological controls and other innovative materials that show promise in controlling disease. Our objective is to broaden the scope of methods used to reduce crop loss due to diseases and to service the diverse management practices of Oregon growers. The results are compiled and sent to county agents, field people, company representatives, and to interested growers directly. The information gained from these trials is used to formulate disease control recommendations for Oregon's diverse agricultural crops.

By Jay Pscheidt

Sweet Cherry Rootstocks for the Pacific Northwest

OSU Extension Catalog

Sweet cherry scion cultivars have been selected over millennia for many reasons, but over the past century, breeding programs have concentrated mainly on achieving improved characteristics such as yield, taste, fruit size, fruit firmness, fruit color, precocity, and resistance to fruit cracking and...

By Clive Kaiser, Lynn Long

Leaf Analysis of Nutrient Disorders in Tree Fruits and Small Fruits

OSU Extension Catalog

Leaf analysis is used to determine the element associated with a nutrient disorder and to prescribe a corrective measure and to estimate fertilizer needs before nutrient disorders occur. This publication explains what, when, and how to sample, as well as how to prepare samples for shipping to a...

Growing Hazelnuts in the Pacific Northwest: Orchard Floor Management

OSU Extension Catalog

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.

By Ed Peachey

Growing Hazelnuts in the Pacific Northwest: Pollination and Nut Development

OSU Extension Catalog

This publication provides a glossary of botanical terms related to hazelnut pollination and describes the flower and nut development process, pollination, and related issues.

How to Recognize Brown Marmorated Stink Bug Damage in Commercial Hazelnuts

OSU Extension Catalog

The brown marmorated stink bug is well-established in the Willamette Valley, where virtually all domestic hazelnut production occurs. The BMSB feeds on hazelnuts, and this publication helps growers and scouts learn to recognize BMSB damage to hazelnuts.

By Linda Brewer, Vaughn Walton, Nik Wiman

Growing Hazelnuts in the Pacific Northwest: Integrated Pest Management

OSU Extension Catalog

This publication provides an overview of insect, disease, and vertebrate pest management in hazelnut.

By Jay Pscheidt, Vaughn Walton