The information in this handbook has been compiled from many sources. We sincerely appreciate the time and effort that everyone spent preparing and reviewing this material. Many of the past authors and contributors have been identified in the 2004 PNW Plant Disease Management Handbook, our 50th edition. Our attempt in this section is to identify all individuals who worked on the 2025 version of the handbook whether their effort was great or small. Those acknowledged as authors or contributors have written completely new sections or conducted major rewrites of existing sections. Reviewers helped read through and verify the existing information.
Special thanks go to Bryan Mayjor, Larry Beutler, Diana Reyes, and the rest of the folks in OSU Extension Communications who keep all the PNW handbooks moving along toward publication.
A personal acknowledgment from Jay to his family: Jacob, I hope the new business begins to do well and your throat feels better. Lucas (and Gabby), congratulations on your engagement. I will always love you all. To my wife Kim, the medical places are no fun but as your cook, chauffeur, manager, etc., I am with you every step of the way. Everyone is ready to help out. Ian, don’t work too hard as you know they say all work and no play…. Erin, I hope the moves to new schools calms down in the future. Enjoy teaching those little ones. Love you all! – J. W. Pscheidt
Authors and Contributors
Braithwaite, E. Turf Research Assistant, Dept. of Horticulture, Oregon State University, Corvallis, OR 97331.
Ocamb, C. M. Extension Plant Pathology Specialist, Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331.
Pscheidt, J. W. Extension Plant Pathology Specialist, Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331.
Reviewers
*Major reviewer of several sections
*Bucy, M. T. Pesticide Registration & Section 24(c) Specialist, Oregon Department of Agriculture – Pesticides Program, 635 Capitol St NE, Salem, OR 97301-2532.
*Caruso, F. Emeritus Plant Pathologist, 21911 78th Place West, Edmonds, WA 98026.
*Glass, J. Diagnostician, WSU, WSU-Puyallup Research and Extension Center, Puyallup, WA 98371.
*Jackson, G. T. Registration Specialist, Pesticide Division, Oregon Dept. of Ag., Salem, OR 97301-2532.
*Mayjor, B. Web & Content Strategy Leader, Extension Communications, Oregon State University, Corvallis, OR 97331.
Krampien, J. Pesticide Registration Specialist, Oregon Department of Agriculture – Pesticide Program, 635 Capitol St NE, Salem, OR 97301-2532.
Mattupalli, C. Plant Pathologist, Department of Plant Pathology, WSU Mount Vernon NWREC, 16650 State Route 536, Mount Vernon, WA 98273.
*Ocamb, C.M. Extension Plant Pathology Specialist, Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331.
Ohkura, M. Director OSU Plant Clinic, Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331.
Pryor, B. Plant Pathology, Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331.
*Pscheidt, J. W. Extension Plant Pathology Specialist, Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331.
*Shaw, D. Forest Pathology, Emeritus, Dept. of Forest Engineering, Resources, and Management, 216 Peavy Forest Science Center, Oregon State University, Corvallis, OR 97331.
Sherman, L. Forester, Benton and Linn and Polk Counties, 4077 SW Research Way, Corvallis, OR 97333.
Stockwell, V. Plant Pathologist, USDA-ARS- HCDPMR, Corvallis, OR 97331.
*Thilmony, B. M. Rainbow Ecoscience, 11571 K-Tel Dr., Minnetonka, MN, 55343.
Till, R. Master Arborist, Todd Prager & Associates, 601 Atwater Road, Lake Oswego, OR 97034.