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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. Learn more about tree fruit research and extension at WSU.

Recent News

New OSU Tree Fruit Extension Hire

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Dr. Ashely Thompson has accepted the position with OSU Tree Fruit Extension at The Dalles. Ashley is currently a postdoctoral research associate at the University…

Welcome New Food Safety Specialist

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Faith Critzer joined the faculty of WSU as the new Produce Safety Extension Specialist based in Prosser at the Irrigated Agriculture Extension and Research Center.…

Sweet Cherry Bud Hardiness February 8, 2018

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Dr. David Gibeaut and Drew Hubbard, OSU Department of Horticulture, are measuring cold hardiness of sweet cherry buds as part of their program’s study in…

New Decision Aid Systems (DAS) Models Launched

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In a non-typical year like 2018 models are more important than ever to help guide decisions in the orchard. Take a look at models new…

Pear Pruning and Horticulture in Higher Density Systems Demonstration

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On February 5, 2018 Stefano Musacchi, WSU Endowed Chair of Horticulture and Bob Gix, Blue Star Growers discussed pruning horticulture with fifty-four growers at a…

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Featured Event

Pear Pruning Demo – Northern Site

Are you interested in improving your pear blocks? Are you interested in higher density pears or how higher density techniques can help you in your standard pear blocks? Join Dr. Stefano Musacchi, Washington State University…

Upcoming Events

19
Feb

Pear Pruning Demo – Northern Site

Event Details

22
Feb

Sprayer Calibration Workshop – Naches

Long Ranch
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22
Feb

Columbia Tree Fruit Club – Feb. Meeting

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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.

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Recent Publications

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.

Achieving sustainable cultivation of apples

Drawing on an international range of expertise, this collection focuses on ways of improving the cultivation of apples as a food crop at each step in the value chain, from breeding through to post-harvest storage….

WTFRC Apple Pesticide Residue Report

The WTFRC Internal Program recently completed their 2016 Pesticide Residue Study featuring 13 insecticide/acaricides and 7 fungicides commonly used in Washington apple orchards, including their first assessment of novaluron (Rimon) residues.

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