University Park, Pa. -- Determining how to save Penn State's elm trees is an ongoing collaboration between University researchers and groundskeepers. Capturing disease-carrying insects to study them has been an elusive task, but researchers believe existing efforts to prevent Dutch elm disease may be a clue to keeping the landmark trees safe from elm yellows.
Watch a video about their efforts here.
Read more about elm yellows at http://elmyellows.psu.edu; learn more about all of the trees at University Park at http://lorax.opp.psu.edu/ online.