David Meigs Beyer, Ph.D.

David Meigs Beyer, Ph.D.

  • Professor of Mushrooms
102 Buckhout Lab (office)
104 Buckhout Lab (lab)

University Park, PA 16802

Areas of Expertise

  • Mushroom cultivation
  • Composting
  • Mushroom nutrition and physiology
  • IPM and Disease Management for Mushroom cultivation
  • Mushroom extension services for the North American mushroom industry

Education

  • B.S., Arts and Science, Syracuse University
  • M.S., Plant Pathology, Penn State University
  • Ph.D., Plant Pathology, Penn State University

In 1979, I began my career as a mushroom grower for Leaver Mushrooms, Ontario, Canada. In the early 1990's I left Leaver as the Director of Growing to pursue a PhD in mushroom research at Penn State University.

As a Professor of Mushrooms my research and extension programs cover all aspects of mushroom growing, from composting through production, including disease management.

The U.S. Dept of Agriculture – NIFA awarded a $1.4 million Organic Research and Extension Initiative (OREI) grant to Dept. of Plant Pathology and Environmental Microbiology (PPEM) to Dr. Beyer and nine other researchers. The purpose of the grant is to develop tools and strategies for adoption by organic growers that address fungal and bacterial diseases, and fly infestations and increase profitability.  Organic mushroom growers currently represent 20 percent of the 346 total US mushroom producers.  Project outcomes will provide organic growers with tools, techniques and strategies to increase production yield and quality, and increase profitability by reducing input and administration costs. 

Other ongoing research projects include the reuse of compost and casing to produce a second crop of mushrooms; alternative materials for mushroom substrate and the study of cultural factors influencing a new mushroom pathogen, identified as Syzygites megalocarpus.

My extension program includes grower educational workshops and the annual Mushroom Short Course. I have been fortunate enough to work with mushroom growers around the world who continue to amaze me with their intuition and resourcefulness.

Publications

USDA-NIFA Organic Research and Extension Initiative Project, 2019 Update, Beyer, David, 2019

100 Years since Tolaas: Bacterial Blotch of Mushrooms in the 21st Century: Plant Disease
Plant Disease, Osdaghi, Ebrahim, Martins, Samuel, Ramos-Sepulveda, Laura, Vieira, Fabrício Rocha, Rocha Vieira, Fabrício, Pecchia, John A., Beyer, David, Bell, Terrence H., Yang, Yinong, Hockett, Kevin L., Bull, Carolee T., 2019

The importance of the Trichoderma and fly survey
Mushroom News, Pecchia, John, Beyer, David, Beyer, D, Pecchia, J, 2018

The Penn State Lines: Best Practices for Post-Crop Sanitation: Steam-Off/Post-Crop Pasteurization, Beyer, David, 2017

The use of corn stover to replace straw in compost formulations for the production of Agaricus bisporus
19th International Society for Mushroom Science Congress, Beyer, David, Pecchia, J, Li, Xiao, 2016

Some Laws of Mushroom Cultivation
Muhsroom News, Beyer, David, Pecchia, J, 2016

Best Practices: Steam-off/ Post-crop Pasteurization, Beyer, David, 2016

Controlling Environmental Factors in Mushroom Growing
Australian Mushroom Growers Association Journal, Beyer, David, Pecchia, J, 2015

Controlling Environmental Factors in Mushroom Growing
Mushroom News, Beyer, David, Pecchia, J, 2015

Mushroom Substrate Leachate
Mushroom News, Beyer, D., Pecchia, John, 2015

Composting changes in carbon
Mushroom News, Beyer, David, Pecchia, J, 2014

Syzygites – new mold on brown mushrooms
Mushroom News, Beyer, David, Pecchia, J, 2014

Anaerobically digested food waste in compost for Agaricus bisporus and Agaricus subrufescens and its effect on mushroom productivity
Journal of the Science of Food and Agriculture, Stoknes, Ketil, Beyer, David Meigs, Norgaard, Erik, 2013

Pest management on US commercial mushroom farms
Outlooks on Pest Management, Pecchia, John Andrew, Beyer, David Meigs, 2013

First Report of Syzygites megalocarpus Web Mold
Mushroom News, Beyer, David, O'Donnell, K, Paley, K, Wach, M, 2013

Investigations into Cultural Factors Influencing the Development of Trichoderma Green Mold
Mushroom News, Beyer, David, Pecchia, J, Elias, R, 2013

Reuse of the casing layer from mushroom compost in subsequent mushroom crops
Mushroom News, Pecchia, John, Beyer, D., 2013

Pest-Pasteurization Overrides
Mushroom News, Beyer, David, Pecchia, J, Gorgo-Gourovitch, M, 2013

Reuse of Casing and Compost for a Second Crop of Mushrooms
Mushroom News, Beyer, David, Pecchia, J, Elias, R, 2013

The Status of Trichoderma Green Mold in the United States
Mushroom News, Pecchia, J, Beyer, David, 2013

First Report of Syzygites megalocarpus (Mucorales) Web Mold on the Commercial Portabella Button Mushroom Agaricus bisporus in North America
Plant Disease, Beyer, David, O'Donnell, K, Paley, K, 2013