Excessive summer irrigation of oak and madrone trees may promote fungal diseases such as the oak root fungus (aka armillaria root disease) and crown rot.
When a heatwave hits, plants may show the impact. Learn the signs of heat stress in plants and how to help them weather a heatwave with best practices for watering, mulching, shading, providing humidity and weeding.
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.
Home gardeners can sometimes be too eager to get plants in the ground and that can spell failure. There are methods, however, to extend the growing season by providing plants with the protection they need from the cold.
Many home gardeners put much effort into attracting bees to their summer flower and vegetable gardens. But it's just as important to be bee-friendly in the fall and winter. Here's how to do it.
Candy Solovjovs |
Oct 2020 |
Article
Credit: Brian, stock.adobe.com (Cropped from original)
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)
To identify pest management priorities and increase the use of integrated pest management in pear production, Pacific Northwest growers, commodity-group representatives, pest control advisors, processors, university specialists...
Katie Murray, Paul Jepson, Chris Hedstrom |
Feb 2021 |
Extension Catalog publicationPeer reviewed (Orange level)