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
Provide input on fire blight needs
Do you want fire blight solutions? Tell us what you need and help us leverage funding to serve the industry.
2018 WTFRC Apple Pesticide Residue Report
Since 2011, the WTFRC has conducted studies in apple and cherry to generate pesticide residue data for commonly used insecticides and fungicides to help Washington…
RosBREED Newsletters
Interested in staying informed about exciting developments in plant breeding, genetics, and genomics of rosaceous crops? Those crops include apple, cherry, peach, and pear, along with almond,…
A(nother) bad year for Little Cherry Disease
Dr. Scott Harper reports on the incidence and spread of little cherry disease in Washington State.
Featured Event
2019 Stone Fruit Research Review
Nov 20, 2018
The 2019 Stone Fruit Research Review will be held November 2, 2018, at WSU-Prosser. For questions or more information, contact Kathy Coffey, kathy@treefruitresearch.com or (509) 665-8271, extension 2.
Upcoming 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.
Recent Publications
Protective Netting Improves Leaf-level Photosynthetic Light Use Efficiency in ‘Honeycrisp’ Apple Under Heat Stress
G Mupambi, S Musacchi, S Serra, L Kalcsits, D Layne, and T Schmidt. 2018. HortScience 53(10): 1416-1422. DOI: 10.21273/HORTSCI13096-18
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…
