Amy J. Dreves

Pocket Guide to Grass Seed Pests and Beneficials: Identification, Monitoring, Management

Learn to identify common pests and beneficial insects found in grass seed production fields across Oregon. Discover where pests are found, learn signs of damage and determine thresholds.

Amy J. Dreves, Navneet Kaur, Joe DeFrancesco, Leanna Van Slambrook, Glenn Fisher, Silvia I. Rondon, Nicole Anderson | May 2021 | Extension Catalog publication Peer reviewed (Orange level)

How to Control Slugs in Your Garden / Cómo Controlar a las Babosas en su Jardín

Practical tips on how to deal with slugs in your garden, given in both English and Spanish.

Neil Bell, Amy J. Dreves | Jun 2023 | Extension Catalog publication Peer reviewed (Orange level)

Invertebrate Pest Management for Pacific Northwest Pastures

A well-managed pasture has several ecological and economic benefits. However, several species of arthropods (insects, mites and garden symphylans), and gastropods (slugs) inhabit pastures of the Pacific Northwest of the United States and can diminish those benefits.

Amy J. Dreves, Navneet Kaur, Mylen Bohle, David Hannaway, Glenn Fisher, Silvia I. Rondon | Aug 2020 | 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)

Noncrop Host Plants of Spotted Wing Drosophila in North America

Landscapes surrounding fruit production fields often include hedgerows, adjacent field margins, and woody or riparian areas with ornamentals, unmanaged shrubs, vines, or other plants that also produce fruits. Noncrop ...

Amy J. Dreves, Jana Lee, Linda Brewer, Rufus Isaacs, Greg Loeb, Howard Thistlewood | Jun 2023 | Extension Catalog publication Peer reviewed (Orange level)

Slug Pests in Field Crops in Western Oregon

Provides information to help growers in western Oregon control slugs in their fields. Topics include slug host plants and damage, life cycle and biology, how to scout for slugs in the field, a technique to estimate the extent of a field's plant damage, and slug pest management.

Amy J. Dreves, George D. Hoffman, Sujaya Rao | Nov 2020 | Extension Catalog publication Peer reviewed (Orange level)

Winter Cutworm: A New Pest Threat in Oregon

Damage from winter cutworm (the common name for the larval stage of the large yellow underwing moth) is a growing concern. In 2015, large numbers of larvae were observed around homes, within golf courses, and ...

Jessica Green, Amy J. Dreves, Brian McDonald, Ed Peachey | Jan 2020 | Extension Catalog publication Peer reviewed (Orange level)

A Detailed Guide for Testing Fruit for the Presence of Spotted Wing Drosophila (SWD) Larvae

This detailed guide illustrates how to test fruit for the presence of the Spotted Wing Drosophila larvae by crushing the fruit, immersing it into a salt or sugar solution, and examining the fruit debris for larvae and pupae.

Amy J. Dreves, Adam Cave, Jana Lee | Mar 2023 | Extension Catalog publication Peer reviewed (Orange level)

Spotted Wing Drosophila: A Quick, 7-Step Guide to Detecting SWD Larvae in Fruit

This brief guide illustrates how to test fruit for the presence of larvae from the Spotted Wing Drosophila.

Amy J. Dreves, Adam Cave, Jana Lee | Mar 2023 | Extension Catalog publication Peer reviewed (Orange level)

Evaluating Compatibility of Horticultural Oils and Sulfur with Vineyard IPM

Typhlodromus pyri is a beneficial insect and key predator of Calepitrimerus vitis in Pacific Coast vineyards. C. vitis is closely associated with short-shoot syndrome. The impact of horticultural (paraffinic) oils and ...

Angela Gadino, Vaughn Walton, Amy J. Dreves, Gregory V. Jones, Linda Brewer | Mar 2023 | Extension Catalog publication Peer reviewed (Orange level)

Recognize Fruit Damage from Spotted Wing Drosophila

This publication shows damage caused by SWD on blueberries (Duke), raspberries (Malahat), strawberries (Seascape), cherries (Bing, Montmorency, and Rainier), and grapes (Pinot Noir, Chardonnay).

Vaughn Walton, Jana Lee, Denny Bruck, Peter Shearer, Emily Parent, Thomas Whitney, Amy J. Dreves | Sep 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 | Mar 2023 | Extension Catalog publication Peer reviewed (Orange level)

Prevention and Management of Grapevine Leafroll Virus and Mealybugs in Oregon Vineyards

This document suggests practices believed to mitigate the spread of disease and virus.

Vaughn Walton, Amy J. Dreves, Patricia A. Skinkis, Clive Kaiser, Marcus A. Buchanan, Rick Hilton, Robert Martin, Steve Castagnoli, Steve Renquist | Mar 2023 | Extension Catalog publication Peer reviewed (Orange level)

Winter Grain Mite: A Fall and Winter Pest of Cereals and Grasses in Oregon

Describes winter grain mite (Penthaleus major), a pest of grass and cereal crops in the Pacific Northwest: its appearance, hosts, and life history and how to scout for and control the pest.

Brian Tuck, Mylen Bohle, Amy J. Dreves, Glenn Fisher | Jul 2021 | 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)