Own a piece of Penn State history. University alumni, fans and friends have an opportunity to bid on a one-of-a-kind table to be crafted from the limited wood reclaimed from the historic Old Main Elm, taken down in March after it succumbed to Elm yellows disease. The eBay auction began at 3 p.m. Tuesday, April 17, and is available directly at http://goo.gl/DS05n online. Bidding is open until 3 p.m. Sunday, April 22. (more)
The disease known as Elm yellows threatens the health of over 200 majestic American elms on the Penn State campus. Elm yellows is just one of many tree diseases that contribute to the decline and death of trees in the United States. What are the main causes of American tree diseases and have we made progress in preventing and treating them? (more)
For generations, nearly every image made of Penn State's iconic Old Main building -- paintings, sketches, photographs -- has included the two majestic elm trees that grace its front corners. Now elm yellows, a disease that has already claimed many American elms on the University Park campus, has so infected one of the trees that it must be removed. The University's Office of Physical Plant hopes to remove the tree during the upcoming Spring Break, weather permitting. (more)
For generations, nearly every image made of Penn State's iconic Old Main building -- paintings, sketches, photographs -- has included the two majestic elm trees that grace its front corners. Now elm yellows, a disease that has already claimed many American elms on the University Park campus, has so infected one of the trees that it must be removed. Weather permitting, the University's Office of Physical Plant has scheduled the removal for the week of spring break, which will minimize security risks to pedestrians. The following video acknowledges these environmental landmarks' significance across several generations of Penn Staters. (more)
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)
Penn State's ongoing effort to suppress the Dutch Elm and Elm Yellows diseases is seeing success, as many of the trees on the University Park campus remain healthy. However, despite the effort's overall success, some of Penn State's majestic elms have succumbed to disease. The University is preserving the wood from its fallen elms, some of which graced the campus for nearly 100 years, in a new line of furniture and picture frames now available to Penn State alumni. (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)
Elm yellows, a disease affecting Penn State's landmark American elm trees on the University Park campus and previously thought to have the ability to decimate the majestic trees, may be isolated. (more)