The first Tree School Online session debuted with 300 registered participants. Since then, the live classes have rolled out with anywhere from 50 to 100 participants.
This publication includes tables that summarize characteristics of the main hazelnut varieties produced in the United States, lists varieties' susceptibility to eastern filbert blight, and shows varieties' compatibility with each other for pollination.
Jeff L. Olsen, Shawn Mehlenbacher, Rebecca L. McCluskey, David Smith |
Nov 2013 |
Extension Catalog publicationPeer reviewed (Orange level)
Pacific Northwest blueberry growers must identify and control a number of bacterial and fungal diseases in order to ensure the highest yields. Fortunately, only a few of the diseases that occur on highbush blueberry in this region cause significant losses when left unchecked.
Jay W. Pscheidt, Jerry Weiland |
Mar 2015 |
Article
Credit: Cade Martin, Center for Disease Control (Cropped from original)
Lead is a tasteless toxic metal that can contaminate well water. It can cause many serious health conditions. Learn how to test your water for lead and study options for water treatment.
Veronica Irvin, Molly Kile, Chrissy Lucas, Laura Neilson, Lilly Anderson |
Jun 2023 |
Extension Catalog publicationPeer reviewed (Orange level)
Christmas trees planted in unirrigated sites depend on the weather for survival. A research trial set out to find factors that would help seedlings survive during drought years. Results were mixed.
Describes key identification features, life cycle, and pest status of filbertworm, filbert weevil, filbert aphid, and hazelnut aphid. Includes color photos.
Vaughn Walton, Ute Chambers, Amy J. Dreves, Denny Bruck, Jeff L. Olsen |
Dec 2007 |
Extension Catalog publicationPeer reviewed (Orange level)
This publication provides a glossary of botanical terms related to hazelnut pollination and describes the flower and nut development process, pollination, and related issues.
This guide provides tree fruit growers with the latest information on pesticides and herbicides for fruit trees. People who grow apples, pears and cherries can learn application rates and recommendations for each stage of tree growth.
Ashley Thompson, Rick Hilton, Achala KC, Marcelo Moretti, Jay W. Pscheidt, Nik Wiman, Christopher Adams, Andony Melathopoulos, Cody Copp |
May 2024 |
Extension Catalog publicationPeer reviewed (Orange level)