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Leaf-Feeding Sawflies in Wheat

Documents 2003 wheat sawfly outbreak in Oregon. Provides growers and field consultants with educational information needed for decision making on fly control. Includes photos.

Mary Corp, Glenn Fisher | Jul 2021 | Extension Catalog publication Peer reviewed (Orange level)

Problem Thistles of Oregon

Describes thistles identified as problems. Includes color photos.

Ken French, Larry C. Burrill, Tim Butler | Jun 2023 | Extension Catalog publication Peer reviewed (Orange level)

Armyworms in Grass Pastures and Corn in Western Oregon

Discusses identification, life cycle, monitoring, action thresholds, biological control, organic controls, and chemical controls. Includes color photos for identification.

Amy Peters, Glenn Fisher | Aug 2020 | 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 | Mar 2023 | Extension Catalog publication Peer reviewed (Orange level)

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 | Jul 2021 | 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 | Jan 2021 | 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 | Jun 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 | Jun 2023 | Extension Catalog publication Peer reviewed (Orange level)