2025 Contributors
Chris Adams, Oregon State University
Section editor: Tree Fruit Crops
Co-author: “Apple Pests”, “Apricot Pests”, “Cherry (Sweet and Sour) Pests”, “Pear Pests”, “Peach and Nectarine Pests”, and “Emerging Insect Pests in the Pacific Northwest”
Nicole Anderson, Oregon State University
Co-author: “Grass Seed Pests” and “Pests of Clover Grown for Seed”
Josephine Antwi, Oregon State University
Lead author: “Hosts and Pests of Vegetable Crops”
Sergio Arispe, Oregon State University
Section editor: Livestock
Author: “Beef Cattle Pests”, “Fly Control”, “Poultry Pests”, “Pyrethroid Resistance”, and “Rangeland Pests”
Brittany Barker, Oregon State University
Co-author: “Biological Control”
Neil Bell, Oregon State University
Co-author: “Irish Potato Pests” and “Vegetable Pests”
Matthew Blua, Washington Potato Commission
Lead author: “Irish Potato Pests”
Rachel Bomberger, Oregon State University
Co-author: “Hosts and Pests of Vegetable Crops”
Cassie Bouska, Oregon State University
Section editor: Small Fruit Crops
Author: “Cranberry Pests”
Lead author: “Blueberry Pests” and “Blackberry and Raspberry Pests”
Co-author: “Currant and Gooseberry Pests” and “Strawberry Pests”
Carolyn Breece, Oregon State University
Co-author: “Honey Bee Pests”
Matthew Bucy, Oregon State University
Co-author: “Christmas Tree Plantation Pests”
Collins Bugingo, Oregon State University
Lead author: “Clover Hay Pests”, “Pasture and Hay Grass Pests”, and “Vetch Hay Pests”
Michael Bush, Washington State Department of Agriculture
Section editor: Tree Fruit Crops
Lead author: “Chemical Control of Landscape Pests”, “Common Landscape Pests”, “Emerging Insect Pests in the Pacific Northwest”, “Hosts and Pests of Landscape Plants”, and “Peach and Nectarine Pests”
Co-author: “Apricot Pests”, “Plum and Prune Pests”
Kristopher Byrd, Oregon Water Resources Department
Co-author: “Chemigation”
Erica Chernoh, Oregon State University
Lead author: “Chestnut Pests”
Co-author: “Hazelnut Pests” and “Walnut Pests”
Sharon Collman, Washington State University
Co-author: “Hosts and Pests of Landscape Plants” and “Common Landscape Pests”
Cody Copp, Oregon State University
Lead author: “Pest of Cabbage and Mustard Grown for Seed”, “Pests of Dry Edible and Seed Pea”, “Pests of Onion Grown for Seed”, and “Pests of Lettuce Grown for Seed”
Co-author: “Hosts and Pests of Vegetable Crops”
Leonard Coop, Oregon State University
Lead author: “Biological Control”
Jenifer Cruickshank, Oregon State University
Author: “Dairy Cattle Pests”
Casey Cruse, USDA-ARS, Forage Seed and Cereal Research Unit
Lead author: “Clover Hay Pests”
Co-author: “Pasture and Hay Grass Pests” and “Vetch Hay Pests”
Surendra Dara, Oregon State University (NWREC)
Co-editor: PNW Insect Management Handbook
Author: “Common Vegetable Pests”
Lead author: “Concepts of Integrated Pest Management”
Benjamin Diehl, Washington State University
Co-author: “Biology and control of the garden symphylan”
Claire Donahoo, Oregon State University
Co-author: “Brown Marmorated Stink Bug: An Emerging Threat to Pacific Northwest Agriculture”
Seth Dorman, USDA-ARS, Forage Seed and Cereal Research Unit
Co-author: “Pasture and Hay Grass Pests”, “Clover Hay Pests”, and “Vetch Hay Pests”
Amy Dreves, University of the Virgin Islands
Co-author: “Entomopathogenic Nematodes””
Scott Duggan, Oregon State University
Author: “Sheep and Goat Pests” and “Swine Pests”
Brook Edmunds, Oregon State University
Section editor: Small Fruit Crops
Lead author: “Currant and Gooseberry Pests”, “Strawberry Pests”
Co-author: “Blackberry and Raspberry Pests”, “Blueberry Pests”, and “Grape Pests”
Armando Falcon-Brindis, University of Idaho
Author: “Alfalfa Grown for Seed”, “Alfalfa Leafcutter Bee Pests”, and “Blue Orchard Bee Pests”
Co-author: “Alkali Bee Pests”
Sanford Eigenbrode, University of Idaho
Author: “Dry Edible and Seed Pea Pests”
Beverly Gerdeman, Washington State University
Co-author: “Biology and Control of Garden Symphylan”
Jessica Green, Oregon State University
Lead author: “Hosts and Pests of Vegetable Crops”
Zack Hamilton, Oregon State University
Co-author: “Turfgrass Pests”
Laurel Hansen, Spokane Falls Community College
Lead author: “Nuisance and Household Pests”
Co-author: “Public Health”
Rick Hilton, Oregon State University
Co-author: “Hemp Pests” and “Pesticide Table for Hemp Pests”
Ronda Hirnyck, University of Idaho
Author: “Safe Pesticide Use”
Thomas Hoffmann, Washington Department of Agriculture
Lead author: “Chemigation”
Craig Hollingsworth, University of Massachusetts
Author: “Public Health Pests”
Andrew Jensen, Washington Potato Commission
Co-author: “Irish Potato Pests”
Erik Johansen, Washington Department of Agriculture
Co-author: “How to Reduce Bee Poisoning from Pesticides”
Navneet Kaur, Oregon State University
Editor: PNW Insect Management Handbook
Author: “Insecticide Resistance Management”
Lead author: “Characteristics of Insecticides”
Co-author: “Mint Pests”, “Grass Seed Pests”, “Field and Silage Corn Pests”, “Concepts of Integrated Pest Management”, and “Biology and Control of Symphylan”
Rene Kesecker, Good Earth Pest Company
Co-author: “Nuisance and Household Pests”
Alec Kowalewski, Oregon State University
Lead author: “Turfgrass Pests”
Jana Lee, USDA Agricultural Research Service
Lead author: “Entomopathogenic Nematodes”
Scott Lukas, Oregon State University
Author: “Pests of Cabbage and Mustard Grown for Seed”, “Pests of Lettuce Grown for Seed”, and “Pests of Onion Grown for Seed”
Co-author: “Pests of Spinach Grown for Seed”
Rory McDonnell, Oregon State University
Author: “Slug Control”
Andony Melathopoulus, Oregon Department of Agriculture
Section editor: Bee Protection
Lead author: “How to Reduce Bee Poisoning”
John Mellott, Oregon Department of Agriculture
Author: “Field Characteristics of Pacific Northwest Fruit Tree-Attacking Spider Mites”
Lloyd Nackley, Oregon State University
Author: “Chemical Control of Nursery Pests” and “Pesticides Registered for Specific Nursery Pests”
Co-author: “Greenhouse Ornamental Pests”
Tiziana Oppedisano, Oregon State University
Lead author: “Small Grains Pests” and “Canola Pests”
Justin O’Dea, Washington State University
Author: “Rose Stem Girdler”
Westy Pickup, Idaho State Department of Agriculture
Co-author: “Chemigation Guidelines”
Max Ragozzino, Oregon State University
Co-author: “Biological Control”
Priya Rajarapu, Oregon State University
Lead author: “Christmas Tree Plantation Pests”
Silvia Rondon, Oregon State University
Co-author: “Hemp Pests” and “Pesticide Table for Hemp Pests”
Ramesh Sagili, Oregon State University
Lead author: “Honey Bee Pests”
Melissa Scherr, Oregon State University
Lead author: “Chemical Control of Nursery Pests”, “Greenhouse Ornamental Pests”, and “Pesticides Registered for Specific Nursery Pests”
Myron Shenk, Oregon State University
Author: “Pesticide Application”
Walter Sheppard, Washington State University
Co-author: “Honey Bee Pests”
Dawn Sherwood, Oregon State University
Author: “Horse Pests”
Govinda Shrestha, Oregon State University
Lead author: “Hemp Pests”, and “Pesticide Table for Hemp Pests”
Gwen Stahnke, Oregon State University
Lead author: “Turfgrass Pests”
Anastasia Stanzak, University of Idaho
Co-author: “Pests of Sugar Beet Grown for Seed”, “Pests of Table Beet Grown for Seed”, and “Sugar Beet Pests”
Patty Skinkis, Oregon State University
Lead author: “Grape Pests”
Gwen Stahnke, Walla Walla Community College
Co-author: “Turfgrass Pests”
Sven Spichiger, Washington State Department of Agriculture
Co-author: “Emerging Insect Pests in the Pacific Northwest”
Heather Stoven, Oregon State University
Section editor: Tree Fruit Crops (Home use of pesticides)
Lead author: “Plum and Prune Pests”
Co-author: “Apple Pests”, “Apricot Pests”, “Cherry (Sweet and Sour) Pests”, “Peach and Nectarine Pests”, and “Pear Pests”
Daniel Suomi, Washington Department of Agriculture
Author: “Wood-Infesting Insect Pests”
Christy Tanner, Oregon State University
Lead author: “Mint Pests” and “Meadowfoam Pests”
Co-author: “Small Grains Pests”
Ashley Thompson, Oregon State University
Lead author: “Pear Pests” and “Cherry (Sweet and Sour) Pests”
Ira Thompson, Oregon State University
Co-author: “Hemp Pests” and “Pesticide Table for Hemp Pests”
Shikha Singh, Oregon State University
Lead author: “Pests of Spinach Grown for Seed”
Rogan Tokach, University of Nebraska at Lincoln
Co-author: “Alfalfa Bee Pests”, “Alkali Bee Pests”, and “Blue Orchard Bee Pests”
Doug Walsh, Washington State University
Author: “Hop Pests” and “Pests of Alfalfa Grown for Seed”
Vaughn Walton, Oregon State University
Author: “Spotted Wing Drosophila: An Emerging Berry and Stone Fruit Pest”
Co-author: “Grape Pests”
Timothy Waters, Washington State University
Author: “Sunflower Pests”
Co-author: “Vegetable Pests” and “Hosts and Pests of Vegetable Crops”
Erik Wenninger, University of Idaho
Lead author: “Pests of Sugar Beet Grown for Seed”, “Pests of Table Beet Grown for Seed”, and “Sugar Beet Pests”
Dale Whaley, Washington State University
Co-author: “Canola Pests” and “Farm Stored Grain Pests”
Alison Willette, Oregon State University
Co-editor: PNW Insect Management Handbook
Lead author: “Pests of Field and Silage Corn”, “Pests of Grass Seed”, “Biology and Control of Garden Symphylan”, and “Mushroom Pests”
Co-author: “Pests of Vetch Grown for Seed” and “Pests of Clover Grown for Seed”
Nik Wiman, Oregon State University
Section editor: Nut Crops
Lead author: “Apple Pests”, “Brown Marmorated Stink Bug: An Emerging Threat to Pacific Northwest Agriculture”, “Hazelnut Pests”, and “Walnut Pests”
Co-author: “Chestnut Pests”
Carrie Wohleb, Washington State University
Author: “Pests of Carrot Grown for Seed”, “Pests of Radish Grown for Seed”, and “Pests of Rutabaga and Turnip Grown for Seed”
Judy Wu-Smart, University of Nebraska at Lincoln
Co-author: “Alfalfa Leafcutting Bee Pests” and “Alkali Bee Pests”
Hana You, Oregon State University
Lead author: “Pests of Vetch Grown for Seed” and “Pests of Clover Grown for Seed”
Publisher
Diana Reyes, Extension Communications, Oregon State University
Larry Beutler, Copy/Production Editor, Portland, Oregon
Acknowledgements
We greatly appreciate the considerable assistance from experts within the PNW agricultural community who provided information that contributed to the quality of this handbook. These experts include county extension agents and specialists, product representatives, food processing representatives, agricultural experiment station staff and private consultants.