WSU Tree Fruit | Washington State University Skip to main content Skip to navigation

Tree Fruit

Tree Fruit Research and Extension

WSU Tree Fruit Research and Extension develops and applies research-based information for sustainable tree fruit production in Washington and the world.

Recent News

Green Fruit Thinning with the Equilifruit Disc

Published on
Green fruit thinning is the final opportunity to adjust and set your final fruit number per leader and the placement of fruit down the limb.…

Western Cherry Fruit Fly

Published on
The first capture of western cherry fruit fly occurred at the OSU-MCAREC on May 20, 2018.

Resources for Managing Cherry Pesticide Residues

Published on
When it comes to concerns over pesticide residues, cherry growers require a lot of complex, up-to-the-minute information to make appropriate management decisions.  Specifically, they need…

Call for Collaborators: Pear Irrigation Efficiencies Project

Published on
Dear pear growers – We would like to invite you to participate in a demonstration project in collaboration with WSU and Cascadia Conservation District. The…

Mechanical Hedging in Apples

Published on
WSU’s Karen Lewis shares an update on mechanical hedging in apples.

More News

Featured Event

Cherry Pre-Harvest Tour

Jun 5, 2018
Dahle Farms Knob Hill Rd. (off of Cherry Heights Rd.), The Dalles Coffee and Donuts provided by Chamberlin Distributing Dwarfing Sweet Cherry Rootstock Selections from the MSU Breeding Program Lynn Long, OSU The New Pearl…

Upcoming Events


Cherry Pre-Harvest Tour

Event Details


Next Generation Network: Irrigation Field Visit

desert sage
Event Details


Pear IPM Discussion: Bugs & Brews

Mission Creek Community Club
Event Details

More Events

2017 Impact Report: Tree Fruit Endowment Advisory Committee (pdf)

Featured Videos

The Soil is Alive

A diverse abundant soil food web cycles water and nutrients, suppresses plant pathogens and helps buffer plant stress. Feed the soil food web to improve plant health. Animated video by Tianna DuPont, WSU Extension and…

Mike Willett talks about CM

Mike Willett talks about how pests threaten our crops, like Washington’s iconic apples. See how Washington’s apple growers are using integrated pest management to reduce pesticide use in our apple orchards.

Life on a Leaf

Description of mites that can be found on apple leaves. Video taken with a dissecting microscope 10x-70x.

More Videos

Latest Newsletter

Newsletter Archive

Recent Publications

Recent Trends in Certified Organic Tree Fruit in Washington State: 2017

The following slide set presents the current data on organic tree fruit area and production for Washington State, with some associated global and national data. Data come from various sources including certifiers, the World of…

Anthracnose Canker Management Plan for Commercial Apple Orchards in Western Washington

Information for managing anthracnose canker, a major disease limiting apple production in western Washington, western British Columbia, and the Columbia Gorge.

Superficial Scald Risk Assessment Assay for Apples

Step-by-step guide to an assay to quantify risk of superficial scald development. This assay could have benefits for organic fruit—where scald-mitigating treatments and limited—and for conventional fruit where the effectiveness of scald-mitigating treatments can be…

New WPS Respiratory Protection Guide

The Pesticide Education Research Collaborative is happy to announce a new resource, “Worker Protection Standard (WPS) Respiratory Protection Guide: Requirements for Employers of Pesticide Handlers”, a 45-page guide to help employers of pesticide handlers meet…

WA 38 Characteristics & Horticulture Factsheet

Here we will cover growth habit, establishment considerations, training systems, pruning techniques, crop load management, fruit type and fruit quality.

More Publications

Get Connected

Washington State University