Scientists & Staff

Current Research

Importance of site quality to long-term growth, survival and blight-resistance of backcross American chestnut

Use of American elm in mixed species plantings to restore degraded riparian ecosystems

Restoration of American elm through breeding

Development of early assay to determine tolerance of American elm to Dutch Elm Disease

Artificial regeneration of northern red oak on xeric sites: effects of family and seedling quality

Research Interests

Restoration of iconic tree species

Biotic and abiotic factors affecting planted seedling establishment success


  • The University of Tennessee, Knoxville, Phd Natural Resources, 2011
  • Master of Forestry, Yale School Of Forestry And Environmental Studies Forest Management, 2008
  • Oberlin College, Bachelor Of Arts Biology, 2003

Professional Organizations

  • Society Of American Foresters, Ohio Chapter
  • Forest Stewards Guild
  • Society of American Foresters
  • The American Chestnut Foundation

Featured Publications & Products

Publications & Products

National Research Highlights

Forest Service summer intern Daniel Delatte measuring the height of a planted hybrid American chestnut seedling. Cornelia Pinchot, U.S. Department of Agriculture Forest Service.

Getting Reacquainted with an Old Friend

Year: 2016

Forest Service scientists investigate site factors that will boost success rates in hybrid American chestnut plantings in forests. This will help managers select optimal planting sites for chestnut reintroduction on public lands.

American elm cuttings growing in the greenhouse. Kathleen Knight, U.S. Department of Agriculture Forest Service.

Elm Disease Resistance Research Gets a Boost

Year: 2016

Great news for disease-tolerant American elm! A grant from The Manton Foundation has provided the Forest Service’s Northern Research Station with an opportunity to accelerate American elm research in collaboration with Nature Conservancy.

Summer seasonal Tim Dirgins planting an American chestnut hybrid seedling. USDA Forest Service

An American Chestnut Hybrid May Survive in Nature if Properly Situated

Year: 2015

A team of scientists from the Forest Service, the Connecticut Agricultural Experiment Station, and the University of Tennessee, Knoxville, is evaluating the importance of site quality on competitive ability and long-term blight-resistance of hybrid chestnuts. Results from this project in western Pennsylvania will help land managers select chestnut reintroduction sites that increase chances of long-term establishment success.

Last modified: Wednesday, January 20, 2016