News Articles
Current Status of the Powdery Mildew Fungicide Toolbox in Cherries
New research results confirm resistance to Group 11 fungicides. More than half of the powdery mildew isolates had developed various levels of DMI (Group 3)…
X Phytoplasma Epidemic
Written by Tianna DuPont, WSU Extension. February 5, 2020. Update April 15, 2020. Fig. 1. X Phytoplasma symptoms in Rainier cherries (left) versus healthy cherries…
Chemical Thinning Options for Bartlett Pears
In the face of relentlessly increasing labor costs and frequently disappointing returns, many pear growers are looking for ways to reduce their input costs and…
WA 38 Size Distribution Profile in Pre-Commercial Plantings
The purpose of this report is to show the fruit size distribution of two maturing orchards between the years 2010 to 2016 (years 2-8 of…
Apple Decline
Apple decline, an emerging problem for apple production in both the U.S. and Canada, is characterized by the rapid dieback of young trees. Many potential…
Getting the Greatest Return on your Investment and Sprayer
Written by Gwen Hoheisel, Regional Extension Specialist, Washington State University, March 2020 One of the most sustainable practices conducted in the orchard is to maintain…
Good Vibrations: A potential IPM strategy for pear psylla (Cacopsylla pyricola)
Insects communicate in many forms like with chemicals in the form of pheromones, or with vibrations in the form of songs like in cicadas and…
WA Sterile Insect Release Project – Year Two Update
With increasing codling moth pressure, growers are looking for new management tools. Biological control released by drones is a fascinating possible solution. Betsy Beers and…
Open Access!
The American Society for Horticultural Science (ASHS) publishes three scientific journals, HortScience, The Journal of the American Society for Horticultural Science and HortTechnology. Free access…
Reducing Cold Damage With Sprayable Nanocrystal Dispersions
Cold damage to the reproductive buds and flowers is a perennial concern to tree fruit producers worldwide. Every year low temperatures threaten productivity and periodically,…
