Apples

General

Article

Ag Water, Soil Amendments, Exemption Conditions Top List of FSMA Concerns

New federal regulations will likely bring big changes in how food is grown, harvested, packed, and processed in the U.S.; small farms and local and regional food systems will feel it too. The Food...

By Nick Andrews, Lauren Gwin

Article

Apple Orchard Diversity: Every Weather Event Selects for Resilience

The last four seasons on the Queener Farm, with over 100 apple varieties, have helped us determine which apples thrive or struggle under organic care. Which ones need less fungicide. Which ones are...

Article

About The Apple – Malus domestica

Taxonomy, history, folklore, medicinal properties, botanical description, general cultural, harvest, contribution to diet.

OSU Extension Catalog

Picking and Storing Apples and Pears

Provides information about how to pick and store apples and pears.

News Story

Plant disease-resistant apple varieties

Mar 26, 2004
If you want to apply chemicals to control apple diseases, your best bet is to plant disease-resistant varieties.

News Story

How to control apple scab

Feb 19, 2003
Wet weather in April and May builds potential for apple scab, a fungal disease of apples.

Grower Incentives

Soil Sampling and Nutrient Management

OSU Extension Catalog

Apples Nutrient Management Guide

Based on soil and leaf test results, recommends amounts of fertilizer needed for apples.

OSU Extension Catalog

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).

By Dan Sullivan, Gene Pirelli, Nicole Anderson

OSU Extension Catalog

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 liming material. Learn why, when, and where to collect your soil sample, and get...

By Melissa Fery, Jeff Choate

OSU Extension Catalog

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.

By Don Wysocki

Article

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...

By Sam Angima

Pruning

OSU Extension Catalog

Training and Pruning Your Home Orchard

Provides general rules for training, pruning, and limb bending, and explains open-center, central-leader, and espalier training. Outlines specific guidelines for training and pruning apple, pear, sweet cherry, sour cherry, peach, prune, plum, apricot, fig, persimmon, walnut, hazelnut, and chestnut...

News Story

Apple trees benefit from proper pruning, spring and summer

Mar 16, 2007
You can prune an apple tree any time of the year without hurting it.

Presentation

Pruning and Caring for Apple Trees

How to prune and care for apple trees.

Rootstock

Climatology

Phenology

Organic Certification and Regulations

Organic Production

Pollination

Integrated Pest Management

OSU Extension Catalog

2019 Pest Management Guide for Tree Fruits in the Mid-Columbia Area

Presents pesticide and herbicide application rates and recommendations, by tree growth stage, for pests that infect fruit trees. Covers apples, pears, and cherries. Provides (1) spray program for nutrients; (2) dilutions table for wettable powder and liquid products; (3) natural enemy impact guide...

By Dalila Rendon, Jay Pscheidt, Achala KC, Rick Hilton

OSU Extension Catalog

2018 Apple Pest Management Guide for the Willamette Valley

Recommends pest management practices for apple.

By Nik Wiman, Jay Pscheidt, Marcelo Moretti

OSU Extension Catalog

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.

Insect Pests

OSU Extension Catalog

2018 PNW Insect Management Handbook

The 2019 PNW Insect Management Handbook will be available in late March. A comprehensive guide to insect management in commercial crops and environments and in home landscapes and gardens in the Pacific Northwest. Covers pesticide safety and toxicity, protecting bees, adjuvants, mixing tables,...

OSU Extension Catalog

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, horticultural oil, mineral, and soap. Readers will learn which types of...

OSU Extension Catalog

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.

Article

A New Pest Attacking Healthy Ripening Fruit in Oregon: Spotted Wing Drosophila, Drosophila Suzukii (Matsumura)

Pest of Concern

Infestations of the Spotted Wing Drosophila fly (Diptera: Drosophilidae; SWD), an exotic pest, were found in Oregon fruits. There are 3000 species of Drosophila, commonly known as...

By Vaughn Walton

OSU Extension Catalog

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. This card has photos and descriptions to help identify brown marmorated stink bugs and...

By Nik Wiman, Vaughn Walton, Silvia Rondon

OSU Extension Catalog

El Chinche Apestoso Marrón Marmolado

El chinche apestoso marrón marmolado (Halyomorpha halys) es un insecto invasor y una amenaza muy grave para la agricultura de Oregon. Se alimenta de más de 100 plantas incluyendo plantas agrícolas y ornamentales de importancia económica. Esta tarjeta presenta con fotos y descripciones para ayudar a...

By Nik Wiman, Vaughn Walton, Silvia Rondon

OSU Extension Catalog

2018 Apple Pest Management Guide for the Willamette Valley

Recommends pest management practices for apple.

By Nik Wiman, Jay Pscheidt, Marcelo Moretti

Diseases

OSU Extension Catalog

2018 PNW Plant Disease Management Handbook

The 2019 PNW Plant Disease Management Handbook will be available in late March. A comprehensive guide to plant disease management in the Pacific Northwest. Includes materials and tactics suitable for organic production and homeowner use as well as for commercial production. Covers testing services...

By Jay Pscheidt, Cynthia Ocamb

OSU Extension Catalog

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 susceptibility and resistance to scab of some apple and flowering crabapple cultivars....

Weeds

OSU Extension Catalog

2018 PNW Weed Management Handbook

The 2019 PNW Weed Management Handbook will be available in late March. A comprehensive guide to weed management in the Pacific Northwest. Covers biological weed control agents, pesticide safety and disposal, agrichemicals and their properties, and control of problem weeds. Contains sections on weed...

By Ed Peachey

Irrigation

OSU Extension Catalog

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 information. Contains tables of: 1) The typical growing seasons of selected...

OSU Extension Catalog

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.

By Dan Sullivan

OSU Extension Catalog

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 tape, timing and rates, maintenance, and adjustments to fertilizer rates.

By Clinton Shock

Fertilization

OSU Extension Catalog

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, molybdenum, chloride, sodium, soluble salts, organic matter, cation exchange capacity...

By Dan Sullivan

OSU Extension Catalog

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 whether manure is right for your farm to learning how to calibrate manure applications...

By Dan Sullivan

Post Harvest Research Centers - United States

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