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

Composting changes in carbon
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

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

Raw Materials – What’s this Year’s Outlook
Mushroom News, Beyer, David, Pecchia, J, 2012

The Penn State Lines, Trichoderma Green Mold Survey
Mushroom News, Beyer, David, Pecchia, J, 2012

The Safe and Proper Use of Disinfectants and Sanitizers on Mushroom Farms
Mushroom News, Beyer, David, Poppiti, J, 2012

The Status of Trichoderma aggressivum, the causal agent of green mold, in the United States as determined in response to 2010-2011 quarterly surveys
, Pecchia, J, Beyer, David, 2012

Water–The Most Important Variable in Mushroom Production?
Mushroom News, Beyer, David, Pecchia, J, 2012

Thyme oil for the control of the major pathogens affecting cultivated mushrooms
Journal of South African Mushroom Growers, Regnier, T, Paley, K, Combrinck, S, Beyer, David, 2011

Global Warming Potential and Mushrooms?
Mushroom News, Pecchia, J, Beyer, David, 2011

Quarterly Survey for Trichoderma Green Mold
Mushroom News, Pecchia, J, Beyer, David, Paley, K, 2011

Supplements and Raw Bulk Ingredients for Mushroom Composting
Mushroom News, Pecchia, J, Beyer, David, 2011

Take Your Lumps for Better Mushroom Size
Mushroom News, Beyer, David, Pecchia, J, 2011

What the Hay?
Mushroom News, Pecchia, J, Beyer, David, 2011

Prediction of hedonic tone using an electronic nose and artificial neural networks
Applied Engineering in Agriculture, Williams, Archie L., Heinemann, Paul H., Wysocki, Charles J., Beyer, David M., Graves, Robert E., 2010

Analysis of fresh mushroom compost
HortTechnology, Fidanza, Michael Anthony, Sanford, David Lee, Beyer, David Meigs, Aurentz, David Jeffrey, 2010

Alternative Compost Ingredients and Mushroom Compost Uses
Mushroom News, Beyer, David, Pecchia, J, Roth, G, Houser, C, Fidanza, M, 2010

Causes of Nematode Infestation
Mushroom News, Pecchia, J, Beyer, David, 2010

Characteristics of Mummy Disease
Mushroom News, Beyer, David, Pecchia, J, 2010

Microbes of Phase II
Mushroom News, Beyer, David, Pecchia, J, 2010

Minimizing the Environmental Impact of your Farm
Mushroom News, Pecchia, J, Beyer, David, 2010

Survey Says Trichoderma Impacts Yields
Mushroom News, Pecchia, J, Beyer, David, Paley, K, 2010