Apple Resources for Umatilla County

Umatilla County is the apple capital of Oregon and produces ~2200 acres of apples.

General

Pest management schedule for backyard apple trees in Eastern Oregon

This document outlines a suggested management schedule for the most common insect pests and diseases of apple trees in Eastern Oregon.

Cody Copp | Feb 2023 | Publication Peer reviewed (Gray level)

Apple orchard diversity: Every weather event selects for resilience

Heavy rain in October showed Willamette Valley growers which apples might do well in the face of climate change.

Jeannie Berg | Apr 2018 | Article

Picking and Storing Apples and Pears

For the best apples and pears, home orchardists and small farmers pick fruit at optimum maturity. Apples and pears harvested at the right time taste better than fruit picked at other times. They store better, ...

Ashley Thompson, Kelsey Galimba, Eliott Gloeb | Dec 2022 | Extension Catalog publication Peer reviewed (Orange level)

Grower Incentives

Oregon NRCS Environmental Quality Incentives Program

Oct 2018 | Online resource

Soil Sampling and Nutrient Management

Applying Lime to Raise Soil pH for Crop Production (Western Oregon)

This publication describes how to estimate lime application rate and lists criteria for choosing liming materials (source), lime application method (placement), and how often to apply lime (frequency).

Nicole Anderson, John M. Hart, Dan M. Sullivan, Neil W. Christensen, Donald A. Horneck, Gene Pirelli | May 2013 | Extension Catalog publication Peer reviewed (Orange level)

A Guide to Collecting Soil Samples for Farms and Gardens

Laboratory soil tests help you develop your soil and increase crop production by providing information on available nutrient content. Soil testing helps you select the correct kind and amount of fertilizer and ...

Melissa Fery, Jeff Choate, Elizabeth Murphy | Nov 2022 | Extension Catalog publication Peer reviewed (Orange level)

Eastern Oregon Liming Guide

Liming is a new practice for the inland Pacific Northwest, necessitated by soil acidification caused by nitrogen fertilization. This publication provides guidance on how to evaluate cropping systems for lime need and how to determine lime application rate.

Dan M. Sullivan, Donald A. Horneck, Don Wysocki | May 2013 | Extension Catalog publication Peer reviewed (Orange level)

Measuring Soil PH

As the summer season winds down, it is time again to start planning for next year’s crop. One of the areas to do inventory is soil fertility. Soil pH is one factor that gauges your plant nutrition status. A single ...

Sam Angima | Jan 2011 | Article

Pruning

Training and Pruning Your Home Orchard

Learn how to train and prune apple, pear, sweet cherry, sour cherry, peach, prune, plum, apricot, fig, persimmon, walnut, hazelnut and chestnut trees.

Jeff L. Olsen | Aug 2019 | Extension Catalog publication Peer reviewed (Orange level)

Apple trees benefit from proper pruning

You can prune an apple tree any time of the year without hurting it.

Mar 16, 2007 | News story

Rootstock

NC-140 Regional Rootstock Research Project

This project seeks to enhance economically and environmentally sustainable practices in temperate fruit production by focusing on rootstocks.

Aug 2018 | Online resource

Climatology

National Weather Service

A map of current weather patterns in the US. Can show wind speeds, humidity, dewpoint, rainfall, and temperature in specific counties.

Aug 2018 | Online resource

Phenology

US Pest

A collection of resources and websites pertaining to pests and disease and the management of these vectors.

Aug 2018 | Online resource

Organic Certification and Regulations

Oregon Tilth

A nonprofit research and education membership organization dedicated to biologically sound and socially equitable agriculture. Oregon Tilth offers education events throughout the state of Oregon, and provides organic certification services to organic growers, processors, and handlers internationally.

May 2018 | Online resource

Pollination

OSU Honey Bee Lab

OSU's honey bee lab. Has info on recent news, studies and projects, general information, and learning resources relating to honey bees.

Aug 2018 | Online resource

Insect Pests

Natural Insecticides

This publication addresses the common misconceptions associated with products labeled "natural" and "organic," and describes related insecticides intended for home gardening. Categories include biological, botanical, fermented, ...

Toddy Murray, Carol A. Miles, Catherine Daniels | Sep 2013 | Extension Catalog publication Peer reviewed (Orange level)

Spotted Wing Drosophila: A Quick, 7-Step Guide to Detecting SWD Larvae in Fruit

This brief guide illustrates how to test fruit for the presence of larvae from the Spotted Wing Drosophila.

Amy J. Dreves, Adam Cave, Jana Lee | Oct 2014 | Extension Catalog publication Peer reviewed (Orange level)

A New Pest Attacking Healthy Ripening Fruit in Oregon: Spotted Wing Drosophila

Publication provides an overview of spotted wing drosophila identification, biology, damage, monitoring, and control.

Amy J. Dreves, Vaughn Walton, Glenn Fisher | Oct 2009 | Extension Catalog publication Peer reviewed (Orange level)

Brown Marmorated Stink Bug

The brown marmorated stink bug (Halyomorpha halys) is an invasive insect and a very serious threat to Oregon agriculture. It feeds on more than 100 plants, including economically important crops and ornamentals. ...

Chris Hedstrom, Nik Wiman, Vaughn Walton, Peter Shearer, Silvia I. Rondon, Jana Lee | Jan 2013 | Extension Catalog publication Peer reviewed (Orange level)

Integrated Pest Management

2023 Pest Management Guide for Tree Fruits: Hood River, The Dalles, White Salmon, Rogue Valley, Umatilla County

This guide provides tree fruit growers with the latest information on pesticides and herbicides for fruit trees. People who grow apples, pears and cherries can learn application rates and recommendations for each stage of tree growth.

Ashley Thompson, Rick Hilton, Achala KC, Marcelo Moretti, Jay W. Pscheidt, Nik Wiman, Christopher Adams, Andony Melathopoulos, Cody Copp | Jan 2023 | Extension Catalog publication Peer reviewed (Orange level)

2023 Pest Management Guide for Apples: Willamette Valley

Learn the latest recommendations for insect, mite and disease control in Willamette Valley apple orchards.

Nik Wiman, Jay W. Pscheidt, Marcelo Moretti | Apr 2023 | Extension Catalog publication Peer reviewed (Orange level)

Meadow Voles and Pocket Gophers: Management in Lawns, Gardens, and Croplands

Starting with background on the biology and behaviors of gophers and voles, this publication dwells primarily on the gamut of ways to manage these widespread pests.

Danielle Gunn, Ronda Hirnyck, Glenn E. Shewmaker, Sherman Takatori, Lance T. Ellis | Jun 2011 | Extension Catalog publication Peer reviewed (Orange level)

Diseases

OSU Plant Clinic

The Oregon State University Plant Clinic is a diagnostic facility associated with and housed in the Department of Botany and Plant Pathology. The Plant Clinic has been operational since 1954. As part of the OSU Cooperative Extension Service, the primary mission of the Plant Clinic is educational. Extended education is provided by helping our clients recognize the nature of their plant problem (diagnosis) and by helping them to manage the disease or disorder using proper control methods, including cultural, biological, and chemical measures. Emphasis is on prevention of problems by proper management.

Melodie Putnam | Mar 2018 | Online resource

Apple Scab

Apple scab is a significant problem in the climate of the Pacific Northwest. This publication discusses the symptoms of the disease and the pathogen and disease cycle. Recommends controls and spray timings. Rates ...

Gary Grove | Dec 2005 | Extension Catalog publication Peer reviewed (Orange level)

Irrigation

Oregon Crop Water Use and Irrigation Requirements

Provides consumptive use and net irrigation requirements for economically important crops in 27 climatic regions in Oregon. Computations are based on the modified Blaney-Criddle calculation method and climatic database ...

Richard H. Cuenca | Oct 1992 | Extension Catalog publication Peer reviewed (Orange level)

Managing Irrigation Water Quality for Crop Production in the Pacific Northwest

Focuses on analyses used for typical agricultural irrigation water sources. Discusses sampling procedures, analyses to perform, and hazards from salts, individual nutrients, pH, sodium, carbonates, and lime. Includes numerous examples and reference tables.

Bryan G. Hopkins, Donald A. Horneck, Robert G. Stevens, Jason W. Ellsworth, Dan M. Sullivan | Aug 2007 | Extension Catalog publication Peer reviewed (Orange level)

Drip Irrigation: An Introduction

Discusses the advantages of drip irrigation and how it can help growers use water efficiently. Covers basic concepts related to components and design as well as management considerations such as placement of the ...

Clinton Shock, Teresa Welch | Jul 2021 | Extension Catalog publication Peer reviewed (Orange level)

Fertilization

Soil Test Interpretation Guide

This publication provides an overview of soil testing and general guidelines for interpreting soil test results for nitrogen, phosphorus, sulfur, potassium, calcium, magnesium, boron, zinc, copper, manganese, iron, ...

Donald A. Horneck, Dan M. Sullivan, Jim Owen, John M. Hart | Jul 2019 | Extension Catalog publication Peer reviewed (Orange level)

Fertilizing with Manure and Other Organic Amendments

Are you thinking about using manure to fertilize your farm but want more information? Properly managed manure applications recycle nutrients to crops, improve soil quality, and protect water quality. From deciding ...

Andy I. Bary, Craig G. Cogger, Dan M. Sullivan | Mar 2023 | Extension Catalog publication Peer reviewed (Orange level)

Post Harvest Research Centers - United States

UC Davis - Postharvest Center

Recommendations for maintaining postharvest quality for fruits and melons, vegetables, and ornamentals.

Sep 2018 | Online resource

Jul 2018

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OSU’s Olea Project responds to grower interest in producing olives

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Predicting and Managing Gray Mold Rot of Pear in Oregon

This publication describes gray mold disease symptoms and the disease cycle and outlines a model that can help pear packers predict the relative risk of gray mold development in stored fruit before the fruit is placed in cold storage.

Robert A. Spotts, Steve Castagnoli | Jan 2010 | Extension Catalog publication Peer reviewed (Orange level)

An Integrated Pest Management Strategic Plan for Sweet Cherries in Oregon and Washington

This plan lists major pests, current management practices, critical needs, and efficacy ratings of pest-management tools in sweet cherry production. Practices are organized by growth stage, making it easier to plan year-round management practices.

Katie Murray, Paul Jepson | Sep 2018 | Extension Catalog publication Peer reviewed (Orange level)

How to Spot Signs of X-Disease in Cherries

Field workers picking cherries can use this card to identify signs of X-Disease in a cherry orchard. One side of the card is in English and the other side is in Spanish. Los trabajadores de campo que ...

Ashley Thompson | Mar 2020 | Extension Catalog publication Peer reviewed (Orange level)

Getting Ahead of X-disease

X-disease has become a cyclic problem on the West Coast as outbreaks of X-disease emerge every 20 years or so. Understanding X-disease and identifying and removing infected trees will help break this cycle.

Ashley Thompson, Christopher Adams, Lauri Reinhold, Jay W. Pscheidt | Aug 2022 | Extension Catalog publication Peer reviewed (Orange level)

Selecting Peach and Nectarine Varieties for the Willamette Valley

Discusses important fruit characteristics to consider when choosing peach and nectarine varieties. Lists currently available varieties, including descriptions of fruit size, color, flavor, texture, and ripening date.

Jeff L. Olsen | Jan 2020 | Extension Catalog publication Peer reviewed (Orange level)

The Economic Impact of Pests and Pest Management on Oregon Sweet Cherries

A collection of real-world data show how insects, diseases, weeds and other pests affected the 2016 Oregon cherry crop. The aim is to raise yields and inform growers about the causes of crop losses.

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Host Range and Characteristics Affecting Fruit Susceptibility to Spotted-wing Drosophila

Spotted-wing drosophila (SWD) can develop on a wide range of cultivated and wild, soft-skinned fruits. This complicates pest management because SWD populations can move among several hosts with different ripening times...

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Sightings of spotted lanternflies worry farmers, nursery industry

So far, there’s no known infestation in Oregon. If one establishes, many of Oregon’s high-value industries may be affected, including wine grapes, nursery and tree crops, small fruits and timber.

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Growing Hazelnuts in the Pacific Northwest: Orchard Site Selection

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.

Jeff L. Olsen | Nov 2013 | Extension Catalog publication Peer reviewed (Orange level)

Growing Hazelnuts in the Pacific Northwest: Training and Pruning

This publication describes practices for pruning young hazelnut trees and mature orchards.

Jeff L. Olsen | Nov 2013 | Extension Catalog publication Peer reviewed (Orange level)

Good Field Practices for Agricultural Workers

The Pacific Northwest is known for its high-quality produce. To preserve this reputation, all people involved in farm activities should be thoroughly trained in practices that promote health and hygiene. Farmworkers, ...

Luisa Santamaria, Maria Marlin | Oct 2022 | Extension Catalog publication Peer reviewed (Orange level)

Growing Hazelnuts in the Pacific Northwest: Integrated Pest Management

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

Jeff L. Olsen, Jay W. Pscheidt, Vaughn Walton | Nov 2013 | Extension Catalog publication Peer reviewed (Orange level)

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