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Identification of Invasive and Reemerging Pests on Hazelnuts

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 publication Peer reviewed (Orange level)

Western Corn Rootworm in Eastern Oregon, Idaho, and Eastern Washington

Western corn rootworm (WCR) is present in eastern Oregon, eastern Washington, and Idaho. As corn acreage in the region increases, WCR has the potential to become a serious pest. This publication covers how to ...

Alexzandra F. Murphy, Silvia I. Rondon, Carrie Wohleb, Steven Hines | Sep 2014 | Extension Catalog publication Peer reviewed (Orange level)

Identification and Control of Knapweed Species in Central and Eastern Oregon

This publication describes potential hazards, management, and identification of knapweeds.

Amy Jo Detweiler | Feb 2003 | Extension Catalog publication Peer reviewed (Orange level)

Introduction to Conifer Release

Successful regeneration of forest stands often requires that crop trees be released from competing vegetation. This publication provides basic information on how to determine if release is necessary and methods for release.

Tristan Huff | Jul 2018 | Extension Catalog publication Peer reviewed (Orange level)

2023 Pest Management Guide for Apples: Willamette Valley

Learn the latest recommendations for insect, mite and disease control in Willamette Valley apple orchards.

Nik Wiman, Jay W. Pscheidt, Marcelo Moretti | Apr 2023 | Extension Catalog publication Peer reviewed (Orange level)

Recognize the Symptoms and Causes of Stunted Growth in Vineyards

Spring frost, herbicide drift, water or nutrient stress, diseases, and insect and mite pests can cause similar symptoms of stunting or distorted growth in grapevines. Recognizing the symptoms and distinguishing their ...

Patricia A. Skinkis, Vaughn Walton, Amy J. Dreves, Clive Kaiser, Steve Renquist, Steve Castagnoli, Rick Hilton, Linda Brewer | Jan 2020 | Extension Catalog publication Peer reviewed (Orange level)

Flea Beetle Pest Management for Organic Potatoes

Describes and illustrates various flea beetle species (color photos) and life history. Includes instructions for monitoring as well as several management options, with emphasis on preventive measures.

Mario Ambrosino | Jan 2008 | Extension Catalog publication Peer reviewed (Orange level)

2024 Pest Management Guide for Tree Fruits: Hood River, The Dalles, White Salmon, Rogue Valley, Umatilla County

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 publication Peer reviewed (Orange level)

A New Pest Attacking Healthy Ripening Fruit in Oregon: Spotted Wing Drosophila

Publication provides an overview of spotted wing drosophila identification, biology, damage, monitoring, and control.

Amy J. Dreves, Vaughn Walton, Glenn Fisher | Oct 2009 | Extension Catalog publication Peer reviewed (Orange level)