Fruit Trees
Lynn Ketchum
Featured Resources
Pruning to Restore an Old, Neglected Apple Tree
Outlines five basic pruning stages designed to restore a neglected apple tree to health. Includes illustrations, a glossary of terms, and sources for additional information.
Four Simple Steps to Pruning Cherry Trees on Gisela and Other Productive Rootstocks
When producing cherries on productive rootstocks, orchardists must focus on reducing crop load and increasing vigor. This publication discusses how to use thinning cuts, stub cuts, and heading cuts to achieve these objectives. Includes step-by-step illustrated instructions.
2019 Pest Management Guide for Tree Fruits in the Mid-Columbia Area
Presents pesticide and herbicide application rates and recommendations, by tree growth stage, for pests that infect fruit trees. Covers apples, pears, and cherries. Provides (1) spray program for nutrients; (2) dilutions table for wettable powder and liquid products; (3) natural enemy impact guide...Latest Resources
Sweet Cherry Compatibility and Bloom Timing Chart
All cherry varieties, except those listed in the self-fertile category, need a pollinizer variety that blooms at the same time in order for pollination to occur. Disclaimer : Information provided in...
Understanding and Preventing Sweet Cherry Fruit Cracking
Fruit cracking in sweet cherries can have a severe economic impact in the Pacific Northwest, even with new optical sorters. This publication helps growers understand the causes of cracking and describes cultural practices that can minimize cracking.
Tree Pruning Basics
A properly pruned tree looks as natural as possible; that is to say, the tree’s appearance reflects its fundamental form and character. The pruner must be sensitive to maintaining this structural integrity, in addition to knowing a bit about tree biology and proper pruning principles!Latest News
Virulent pathogen uses a genetic decoy to foil host’s immune defenses
Jan 13, 2017
A one-two punch may explain why Phytophthora is so devastating
Skunking the stink bug: discover the latest in sustainable management in orchards
Jun 30, 2016
Orchardists can minimize damage through integrated pest management
OSU scientists invent rain-resistant coating that cuts cherry cracking in half
Apr 15, 2015
The edible biofilm could save a whole season's crop in a rainy year.
