• Professor of Mushrooms

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
  • Department Head, Plant Pathology and Environmental Microbiology
  • Professor of Plant Pathology and Systematic Bacteriology
  • Director, Penn State Microbiome Center

Areas of Expertise

  • Phytobacteriology
  • Translational Taxonomy
  • Systematic Bacteriology
  • Biological Control
  • Sustainable and Organic Agriculture
  • Assistant Professor of Epidemiology and Field Crop Pathology

Areas of Expertise

  • Integrated management of field crop diseases
  • Plant disease epidemiology
  • Statistical methods for the agricultural sciences
  • Professor of Vegetable Pathology
  • Director of Graduate Studies

Areas of Expertise

  • Integrated vegetable disease management
  • Plant pathogen diagnosis
  • Disease monitoring and forecasting
  • Sustainable crop production
  • Associate Professor

Areas of Expertise

  • Mycotoxins
  • Endophytes
  • Fusarium
  • Fungal genetics
  • Fungal secondary metabolites
  • Agricultural biosecurity
  • Associate Research Professor
  • Mushroom Science and Technology Minor Advisor
  • Director, Mushroom Research Center
  • and Mushroom Spawn Lab

Areas of Expertise

  • Compost Microbiology
  • Mushroom Cultivation
  • Composting
  • Integrated Pest Management
  • Associate Research Professor, Tree Fruit Pathology

Areas of Expertise

  • Apple and pear diseases
  • Peach, cherry, other stone fruit diseases
  • Integrated tree fruit disease management
  • Associate Research Professor

Areas of Expertise

  • Potato
  • Potato diseases
  • Professor Emeritus

Areas of Expertise

  • Mushrooms
  • Spawn production
  • Genetics
  • Professor

Areas of Expertise

  • Epidemiology and management of turfgrass diseases
  • Population biology of turfgrass pathogens
  • Host defense response in turfgrass pathosystem
  • Chemical control of turfgrass diseases