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

Expert Presentations

Featured below are links and a brief description to WSU YouTube videos with educational content that includes invited seminars, presentations at meetings, “how to’s” in the field, lab visits, field day events, etc. Items in the list are arranged chronologically with the newest video at the top.

WA 38 ‘Cosmic Crisp™’ Fall Field Visits – Part 2
The WA 38 (or Cosmic Crisp™) trial compares vertical spindle, bi-axis and V-trellis training systems and both the M9-Nic29 and Geneva 41 rootstocks. Trial results are discussed by trial participants. Topics discussed include pruning and…
WA 38 ‘Cosmic Crisp™’ Fall Field Visits – Part 1
Drs. Bruce Barritt, Ines Hanrahan and Mr. Tom Auvil describe WA38 ‘Cosmic Crisp™’ cultivar characteristics, tree handling, rootstocks, pollination, thinning, the issue of stem punctures, stem clipping, fruit size, shape, color and post harvest performance.
Photoselective Anti-hail Netting Trial for ‘Honeycrisp’ Apple
An evaluation of the use of photoselective anti-hail netting is underway to reduce sunburn and improve productivity of ‘Honeycrisp’ apple in trials a commercial orchard in Quincy, WA. This video describes the methods used and…

Photo-selective Netting-An Integrated Agro-technology: Improving Fruit Production While Coping With Environmental Constraints
Dr. Shahak presents an invited expert seminar reviewing research around the world where anti-hail shade nets of various colors have been used to alter the field microclimate and bring about various positive benefits for plants.
Pruning Bartlett Pears to Optimize Fruit Quality
Dr. Stefano Musacchi provides a tutorial on pruning Bartlett pear trees to optimize fruit quality. This includes using the concept of dynamic or renewal pruning, and the techniques of girdling, notching and limb bending. He…
Weed Control in Orchards
On January 19, 2015 David Granatstein spoke at the Lake Chelan Hort Day about why weed control is needed in orchards, weed control options, herbicides and other choices, and economics. He also discussed the results…
Powdery Mildew Infection of Sweet Cherries: Expect the Unexpected
Dr. Claudia Probst discussed the relationship between host susceptibility, environment and timing in cherry powdery mildew disease development. She noted that sweet cherries are more susceptible to fruit infection as you get closer to harvest…
Apple Varieties of the Future from WSU’s Apple Breeding Program
Dr. Kate Evans describes the four precision breeding techniques that she uses in her WSU apple breeding program: 1. DNA-informed choice of parents; 2. DNA-informed selection of seedlings; 3. Extensive evaluation of fruit; and 4….
Utilizing the WSU-DAS Version of the Spray Guide
Dr. Ute Chambers explains how the WSU Decision Aid System (http://das.wsu.edu) can be used as a tool for making decisions for managing pests in your orchard. She also spoke about some new features including e-mail…
The Evolution of Tree Fruit Pest Management Practices
Dr. Jay Brunner provides a historical perspective on pest management practices for apple in the Pacific Northwest. He reviews historical crises and the value of biological control.
Are You In The Know? Resources That You Should Be Utilizing
Dr. Desmond R. Layne provides an overview and specific examples of resources that people in the fruit industry can use for self-education. He distinguishes unbiased, research-based, peer-reviewed information with other types such as that provided…
Integrated Management of Postharvest Diseases of Pome Fruit
Dr. David Sugar (Oregon State University) emphasizes the management of postharvest diseases caused by fungi that enter pears through wounds (particularly during the harvest process).
A Tale of Two Mites: Ambyldromella caudiglans and Galendromus occidentalis in Washington Apple
Ms. Schmidt-Jeffris discusses predatory mite biodiversity in Washington apple orchards. She offered a brief history of integrated mite management in apple in the Pacific Northwest.
Root Physiology and Function in the Orchard
Dr. Lee Kalcsits provides an educational presentation reviewing root function and physiology in the orchard during the program “Roots: Foundation of Your Orchard’s Success” at the 2014 WSHA Annual Meeting, Kennewick, WA, December 3, 2014.

Roots Program Speaker Panel Question and Answer Session
More Video recording of the panel discussion with Dr. Lee Kalcsits, WSU-TFREC (Wenatchee, WA), Dr. Gennaro Fazio, USDA-ARS (Geneva, NY), and Dr. Mark Mazzola, USDA-ARS (Wenatchee, WA), as part of the program “Roots: Foundation of Your Orchard’s…
Roots and Soil Biology: Managing the “Microherd” for Maximum Tree Performance
More Video presentation by Speaker #4 – Dr. Mark Mazzola, USDA-ARS (Wenatchee, WA), as part of the program “Roots: Foundation of Your Orchard’s Success” at the 2014 WSHA Annual Meeting, Kennewick, WA, December 3, 2014. To see…
Characteristics of Tree Root Systems
More Video presentation by Speaker #3 – Dr. David Eissenstat, Penn State Univ. (University Park, PA), as part of the program “Roots: Foundation of Your Orchard’s Success” at the 2014 WSHA Annual Meeting, Kennewick, WA, December 3,…
Optimal Tree Nutrition and Fruit Production Begins Underground – The Apple Rootstock Story
Dr. Gennaro Fazio provides an educational presentation reviewing the role of rootstock in apple tree nutrition and fruit production during the program “Roots: Foundation of Your Orchard’s Success” at the 2014 WSHA Annual Meeting, Kennewick,…
Fruit Testing at the WSU Apple Breeding Program
More Dr. Kate Evans and her apple breeding team take us on a tour during a typical day in her Fruit Quality Evaluation Laboratory. Specifically, Kate will speak about the broader goals of the apple…
The Hows and Whys of Soil Testing
More This video captures an invited seminar by Dr. Joan Davenport, WSU Crop and Soil Sciences Dept. (IAREC-Prosser, WA), presented at WSU-TFREC in Wenatchee on October 29, 2014.  This seminar focuses on four main topics:…
Cosmic Crisp™ WA 38 Field Days
More This video was recorded at two commercial grower field days on September 17 and 30, 2014. It provides the viewer with a look at the Cosmic Crisp™ WA 38 apple both at Washington State…
The Potential for Precision Soil Management in Orchards
More This video captures an invited seminar by Dr. Dave Brown, WSU Crop and Soil Sciences Dept. (Pullman, WA), presented at WSU-TFREC in Wenatchee on August 13, 2014. This seminar presents the concepts of precision…

The Future of IPM in Orchard Crops
More Speaker: Dr. Vince Jones, Professor of Entomology and Director of WSU-DAS. Affiliation: Washington State University, Tree Fruit Research and Extension Center, Wenatchee, WA 98801. Synopsis: Dr. Vince Jones was invited to give his unscripted opinion about the future of…
Tree Fruit Research and Extension at WSU
More This video presents an overview of the range and types of research Washington State University scientists at the Tree Fruit Research and Extension Center at Wenatchee do in support of the Washington tree fruit industry….
WSU’s Sunrise Research Orchard
More Washington State University, in collaboration with the state’s tree fruit growers, has established a state-of-the-art research orchard near Wenatchee, Wash. This short video provides a brief overview of the types of research being conducted…
Washington State University