Dr. Tim Miller

Plenary Session: Weed Ecology

Session: Herbicide Mode of Action

Dr. Miller's research and extension program focuses on weed management in crops grown in western Washington, including berries, vegetable seed crops, ornamental bulbs, Christmas trees and other ornamentals, and many species of fresh market vegetables. He also studies control of a host of noxious weed species on agricultural, range, and forest lands west of the Cascade Mountains.

Todd Murray

Plenary Session:   WSU Master Gardener Program: Past, Present & Future 


Todd Murray is the Agriculture and Natural Resource Program Unit for Washington State University Extension. The ANR Program Unit covers a wide range of specialties and regions in addition to having the largest number of faculty, professionals and staff at the College of Agriculture, Human and Natural Resource Sciences. Todd first met the Master Gardeners in 1996 and has been the program’s biggest fan ever since.

Dr. Hanu Pappu

Session:  Viruses in My Garden: How to Find Them and How to Deal with Them 

 Dr. Hanu Pappu holds the President Samuel H. Smith Distinguished Professorship and is the Carl F. & James J. Chuey Endowed Chair in Plant Pathology at WSU in Pullman.  He has been conducting research on viruses that affect the nursery and ornamental industry with a goal to develop control tactics.  Dr. Pappu teaches an undergraduate course in plant pathology and a graduate course in plant virology. He published more than 190 research publications on a wide range of topics on plant viruses and their management, and delivered numerous invited presentations at national and international conferences.   

Mary Peterson

Session: Light Up Your Landscape

Mary is a professional outdoor lighting designer with 10+ years of experience from which she draws to create and install a personalized look inspired by the customer’s dreams and desires. Her goal is to provide each customer an individually unique, high functioning, properly designed and installed outdoor lighting landscape which provides great illumination year-round.  Her method includes thorough consultation, creative and unique design, professional installation, and second-to-none customer service. 

An avid reader, a born traveler, and inquisitive by nature, Mary is constantly educating herself for the benefit of her clients.  When not working for her clients, she’s on her farm surrounded by chickens, ducks, rabbits, goats and a huge spread of fruit and vegetables – evidence that everything she puts her hands to, grows in beauty.  A mother to 4 wonderful children and 8 grandchildren, she considers herself blessed.

Judy Redmond

Session: A Rose is a Rose … BUT differences abound East and West of the Cascade Curtain!


Judy is a WSU Snohomish County Master Gardener and an American Rose Society (ARS) Consulting Rosarian living in Zone 7b on 2.5 acres in Woodinville, Washington. She’s been growing about 50 roses since 2005, and serves as the current president of the Seattle Rose Society. She has been exhibiting roses since 2006 and has won several major awards. 

Judy is a former teacher, writer, and editor, and is currently enjoying retired life. She lives with her husband and loves playing with her two young granddaughters. Her pastimes include gardening, reading, and traveling.

Bridget Rohner

Session: Discover Your TRUE COLORS


Bridget Rohner is an Assistant Professor for Washington State University Extension.  She serves the Lincoln and Adams County area focused on Youth Development, Family Nutrition and Community Economic Development. Trained in TRUE COLORS sixteen years ago, Bridget enjoys  working with youth and adult groups to better understand themselves and those around them.

Julie Sanderson

Session: Weed Worries

Julie is a botanist working as the Field Supervisor for the Chelan County Noxious Weed Control Board since 2010. Julie worked for eight years with the BLM on rare plant and restoration projects. She has also taught Plant Taxonomy and Biology classes at Wenatchee Valley College and is a member of the Wenatchee Chapter of the Washington Native Plant Society. Julie holds degrees in botany and plant pathology from the University of Wisconsin, but has called Washington home for 25 years. 

Bob Taylor

Session:  Working with Schools and Youth Outreach  


Bob became a WSU Master Gardener in 2001 after retiring and moving from Texas so his wife could be near her twin sister.  Active locally after joining WSU Lewis County Master Gardeners, he expanded his interests and became a board member of the Master Gardener Foundation of Washington State. 

For the last 15 years, Bob has been involved in youth outreach.  Now in his seventh year at Toledo Elementary School, he has led a program that ignites students’ enthusiasm and participation in gardening by teaching both WSU Master Gardener and Master Recycling/Composting related topics. The school has gone from a ‘failing’ status in seven years to a ‘distinguished’ status by the Washington State Superintendent of Schools. 

Margaret Viebrock

Session:  Balancing Competing Commitments


Margaret Viebrock is a faculty professor with Washington State University Extension and the Chelan-Douglas County Director.  Her subject matter areas include food safety, nutrition education, diabetes and farm family issues. She is the 5-state leader for the Women, Farms & Food project for women involved in agriculture. Margaret has worked for WSU for many years and received numerous national awards and grants for her work with farm families, women involved in agriculture, Spanish-speaking families, helping people develop specialty food products, walking programs and economic development.


Dale Whaley

Session:  Glyphosate, Resistance and Cancer: What is the Current Situation?



Dale Whaley has been working for Washington State University Extension for 16 years and is currently assisting Douglas, Chelan, Kittitas and Okanogan County residents with their agriculture and integrated weed management needs. He has expertise in entomology (Master of Science, WSU), integrated pest management (IPM) (Bachelor of Science, WSU), noxious weed control, invasive species, alternative cropping systems and continues to work as a regional coordinator for the Washington State Integrated Weed Control Project.