Fruit Trees

Featured Resources

Pruning to Restore an Old, Neglected Apple Tree

Outlines five basic pruning stages designed to restore a neglected apple tree to health. Includes illustrations, a glossary of terms, and sources for additional information.

OSU Extension Catalog

Four Simple Steps to Pruning Cherry Trees on Gisela and Other Productive Rootstocks

When producing cherries on productive rootstocks, orchardists must focus on reducing crop load and increasing vigor. This publication discusses how to use thinning cuts, stub cuts, and heading cuts to achieve these objectives. Includes step-by-step illustrated instructions.

By Lynn Long | 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

Latest Resources

Pesticide Safety Education Program (PSEP)

Revamped team, revamped website! Check out the Pesticide Safety Education Program site to find out where and when your nearest CORE pesticide continuing education event is at and to register for the class. Need to fulfill Worker Protection Standard trainings? We have a list of trainings around Oregon scheduled and available for sign up. Have a large group that need WPS training? We can come to you!

By Sean Perez, | Online Resource

Researchers determine ideal areas and timing for biological control of invasive stink bug

Jun 10, 2019

Biological control of the brown marmorated stink bug, an invasive pest that devastates gardens and crops, would be more effective in natural areas bordering crops or at times when certain insecticides aren’t being applied.

By Chris Branam | News Story

Wiman Lab

Current research includes IPM for new and old hazelnut pests, hazelnut nutrition, hazelnut water use/irrigation, and cider apple production. Primary interests are population biology of insects, biological control, sustainable orcharding and grower outreach.

By Nik Wiman, | Online Resource

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Latest News

Researchers determine ideal areas and timing for biological control of invasive stink bug

Jun 10, 2019

By Chris Branam | News Story

Get a leg up on fruit tree problems with dormant oils

Feb 2, 2018

Three low-toxicity pesticides help with disease and pest control

By Kym Pokorny | News Story

Virulent pathogen uses a genetic decoy to foil host’s immune defenses

Jan 13, 2017

A one-two punch may explain why Phytophthora is so devastating

By Gail Wells | News Story

All News

Upcoming Events

Farm Enterprise Analysis-Plan for Profit

Central Point, OR

Mon, Oct 28, 2019 5:30 pm - 8:30 pm

Plan for Profit

CORE Pesticide Applicator Videoconference Training

Grants Pass, OR

Thu, Dec 12, 2019 9:45 am - 3:00 pm

Full day attendance qualifies for 4 CORE credits for any pesticide applicator with presentations from OSU and ODA faculty and staff. Morning sessions are “Getting Tough on Pests and Going Soft on...

OSU Curry County Master Gardener™ Training Schedule - Small Fruits/Fruit trees

Gold Beach, OR

Fri, Jan 31, 2020 1:00 pm - 4:00 pm

Small Fruits/Fruit trees presented by Ross Pennhallegon, OSU Faculty.

Meet Our Experts

Heather Andrews

Orchard Crops Faculty Research Assistant

Erica Chernoh

Horticulture Assistant Professor of Practice, Commercial and Community Horticulture

Clive Kaiser

Agriculture

Jay Pscheidt

Plant Pathologist

Have a Question? Ask an Expert!

Ask an Expert is a way for you to get answers from the Oregon State University Extension Service. We have experts in family and health, community development, food and agriculture, coastal issues, forestry, programs for young people, and gardening.

Ask Us a Question

Holy plum tree! What is wrong?

We planted a Methley Semi-Dwarf plum tree in our front yard in approximately February of 2015 (through Friends of Trees in Portland). In the last month or so we have noticed that the leaves have small holes in the them, and there are also some insects on them. We have been fairly good about watering...

By Nik Wiman | Featured Question

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