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Tilth Conference: Symposium Speaker Bios

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Dr. Mark Mazzola

Mark Mazzola is a Research Plant Pathologist located at the USDA-Agricultural Research Service Tree Fruit Research laboratory in Wenatchee, Washington.  He serves as a faculty member  in the Department of Plant Pathology at Washington State University as well as in the Department of Plant Pathology at Stellenbosch University, South Africa.  Mark obtained his BSc in forest biology and MSc in forest pathology at the University of Vermont, and PhD in Plant Pathology at Washington State University. His research program seeks to identify effective practices to manage the structure and function of the soil and rhizosphere microbiome and to develop ecologically sustainable means to enhance agro-ecosystem resilience through suppression of soil-borne plant diseases.

Nick Andrews

Nick Andrews is a member of OSU’s Center for Small Farms & Community Food Systems. Most recently Nick has started to develop a statewide Organic Extension program at OSU. He also serves as the Portland area Small Farms Extension agent. Nick started with OSU Extension in 2005, and was previously an organic inspector with Oregon Tilth, orchard consultant in Hood River and vegetable entomologist in England and Scotland. His work focuses on organic vegetable production and beginning farmer training. Nick developed the Organic Fertilizer and Cover Crop Calculator in collaboration with Dan Sullivan and others at OSU. He is also collaborating with OSU colleagues to develop Croptime, a degree-day modeling website for vegetable growers.

Dr. Doug Collins

Doug Collins is an Extension Faculty with WSU’s Small Farms Program.  His extension programs and research focus on soil quality and fruit and vegetable production for small farms.  Doug has a Ph.D.  in soil science from  Washington State University and an M.S. in Plant Pathology from Montana State University.

David Granatstein

David Granatstein is with Washington State University (WSU) Extension based in Wenatchee, Washington. He has worked on sustainable agriculture and organic farming for over 35 years on different crops and in several states and countries.  He currently focuses on tree fruit production, organic systems, and soil quality.

Dr. Carmen Blubaugh

Carmen Blubaugh is a postdoctoral researcher in the Entomology Department of Washington State University. She is a vegetable enthusiast and community ecologist who examines predator-prey interactions between beneficial insects and the role of biodiversity, cover crops, and soil management in natural pest suppression. Carmen is originally from the Midwest; she recently finished a PhD at Purdue University and is quickly making herself at home in the PNW.

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