Tier 2 Committee Members | Washington State University

Tier 2 Committee Members

University Representatives

Position 1 and Vice Chair:

Maher Al Rwahnih, Research Representative

Associate Project Scientist, University of California

Foundation Plant Services, UC-Davis

Position 2:

Bill Shane, PhD, Extension Representative

District Extension Fruit Agent

Southwest Michigan Research & Extension Center

Position 3:

Elizabeth Cieniewicz, PhD, Research Representative

Professor, Clemson University

Southeast Budwood Program

Position 4 and Chair:

Scott Harper, PhD, Research Representative

Assistant Professor, Washington State University, Director CPCNW

Clean Plant Center Northwest


Position 5:

Elizabeth Dorman, PhD (northcentral region)

Plant Pathology Program Manager

Michigan Depart. Of Agriculture and Rural Development

Geagley Laboratory Building

Position 6:

Elizabeth A Savory, PhD (western region)

Plant Health Program Manager

Oregon Department of Agriculture

Position 7:

Matthew Howle, PhD (eastern region)

Survey Specialist

Department of Plant Industry


Position 8:

Chalmers Carr, Fruit Producer (southern region)

President & CEO, Titan Farms


Position 9:

Cliff Beumel, Nursery Producer (western region)

President, Agromillora California

Position 10:

Gary Snyder, Nursery Producer (western region)

Co-Owner, C&O Nursery

Position 11:

Eric Haller, Nursery Producer (northeastern region)

Vice President, Adams County Nursery

Position 12:

Dale Goldy, Nursery Producer (western region)

Gold Crown Nursery

Position 12:



Non-Voting Members

APHIS (PPQ) Observers:

Pauline Spaine, PhD

USDA-APHIS-PPQ-PHP- IRM, Plants for Planting Policy

Oscar P. Hurtado-Gonzales, PhD

USDA – APHIS Beltsville, Lead Plant Pathologist and Program Manager

National Clonal Germplasm Repository Representative:

Joseph Postman

Plant Pathologist, Oregon State University

National Clonal Germplasm Repository


AmericanHort Representative:

Craig Regelbrugge

Sr. Vice President, Industry Advocacy & Research
AmericanHort Association

Subject Matter Experts:

Bill Howell

Northwest Nursery Improvement Institute – Topcliffe Farm

Mike Willet 

Washington Tree Fruit Industry

NCPN National Coordinator:

Erich Rudyj

National Clean Plant Network

USDA, APHIS, Plant Protection and Quarantine

NCPN-FT Program Coordinator:

Tanner Hunt

Clean Plant Center Northwest

Washington State University – Prosser