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)

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)

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

Late winter is the best time to prune an apple tree.

Kym Pokorny | Mar 16, 2023 | 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

2024 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 | May 2024 | 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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Growing Hazelnuts in the Pacific Northwest: Orchard Floor Management

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.

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Know when it’s time to harvest apples and pears

Apples and pears have different characteristics when it comes to harvest.

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2024 Pest Management Guide for Tree Fruits: Hood River, The Dalles, White Salmon, Rogue Valley, Umatilla County

Factors Affecting Sweet Cherry Fruit Pitting Resistance/Susceptibility

Yan Wang | Jun 2018 | Presentation

Oregon IPM Center leads the way to better pest management

The center develops multi-faceted approaches to limit the use of pesticides in Oregon’s crops.

Silvia I. Rondon | Jun 2021 | Impact story

OSU establishes demonstration orchard for state’s growing cider industry

The orchard has more than 80 apple varieties – some that are well-known in the industry and in high demand by cider-makers – plus other lesser known or experimental varieties needing to be evaluated under western Oregon conditions.

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Get a leg up on fruit tree problems with dormant oils

Applying dormant sprays helps control nasty pests and diseases like codling moths and apple scab.

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Sweet Cherry Cultivars for the Fresh Market

Describes dark red and blush sweet cherry cultivars, including harvest timing, color when ripe, suggested pollinizers and rootstocks, size, firmness, yield potential, and other traits. Includes color photo of each cultivar.

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Cherry Training Systems

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Oregon State entomologists develop organic product to control fruit pest

A patent-pending commercial application known as Decoy has resulted in a 67% reduction in damage, on average.

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Fruit trees need attention this time of year

Whether you have one or several, or plan to plant your first fruit tree, it’s time to give them the attention needed to keep them healthy and bearing fruit.

Kym Pokorny | Jan 27, 2023 | News story

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