Still Life
Commencement across Penn State: Spring 2012
Spring commencement 2012 under way
Penn State, Moroccan students problem-solve together
Finals Week Spring Semester 2012
Children explore career options at University Park
Painting the Lines at Beaver Stadium
Did They Get It Right? - RedTails
Iconic Penn State elm taken down over spring break 2012
We ... are Penn State (December 19, 2011)
Disease stricken matching elm tree slated for removal
Penn State's creamery, from the cow to the cone
Penn State staff and researchers have battled aggressively for years the two primary diseases threatening the landmark American elm stand on the University Park campus. A recent resurgence in one of those diseases -- Dutch elm disease, an old nemesis -- has forced the University to remove 16 elms this summer. "Diseased trees pose a significant risk to healthy one, so it is necessary, unfortunately, to remove the diseased ones," said Jeff Dice, supervisor of grounds and maintenance. "Once infected, the trees can't recover, and the disease can spread from tree to tree." (more)
Penn State continues to battle the two primary diseases threatening the landmark American elm trees on its University Park campus, but crews also have begun planting new varieties of trees to replace those elms lost during the past several years on the Allen Street Mall area. Workers began this week planting more than two dozen trees on the campus' historic core. The plantings include an array of shade trees that grow in Pennsylvania, including coffee trees, plane trees, bur oaks, white oaks and zelkovas. Different types of trees are being planted to guard against a future large-scale loss to disease. The two diseases facing one of the nation's oldest elm stands are Dutch elm disease, a fungal disease spread by the elm bark beetle, and a more recent syndrome known as elm yellows. (more)
As Penn State continues to battle several diseases affecting its landmark American elm trees on the University Park campus, the University will begin the removal of nine more affected trees from campus. "It is unfortunately necessary to remove infected trees, which pose a significant risk to the healthy ones," said Jeff Dice, supervisor of grounds maintenance. "In some cases, deterioration of the infected trees has been rapid. Once infected, they cannot recover and the disease can spread from tree to tree." The two devastating diseases now facing one of the nation's oldest elm stands are Dutch elm disease, a fungal disease spread by the elm bark beetle and a more recent syndrome known as elm yellows. (more)
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. (more)
