Lake Metroparks

a photo of a leaf with beech leaf disease
JEFF ST.CLAIR / WKSU

A mysterious disease is killing one of the most majestic trees in American forests, the beech. 

Known for its smooth gray bark, the beech is an important anchor species. 

No one knows exactly what causes Beech Leaf Disease, but a team of tree scientists is narrowing down the list of culprits in this botanical whodunit.