Hands-on: Preserving Pennsylvania’s plants

At a conference of the Pennsylvania Association for Sustainable Agriculture, weed ecologist Dave Mortensen monitored a hands-on plant preservation workshop.

man holding up a plant affixed to paper

Dave Mortensen demonstrates how to preserve Pennsylvania's plants.

Dave Mortensen, Ph.D., is professor of weed ecology and biology, dmortensen@psu.edu.

Last Updated May 11, 2005