Mark Double, an associate in the West Virginia University Department of Plant Pathology, stands under one of the elm trees at historic Glenwood Estate in Charleston. Double has been administering preventative treatments to the trees for 30 years to prevent Dutch elm disease.

WVU researcher Mark Double pumps fungicide into the base of a large maple on the grounds of the historic Glenwood Estate on Charleston's West Side.

One of the huge elm trees at the historic Glenwood Estate that received preventative treatment for Dutch elm disease is silhouetted against the summer sky. Large cables up in the canopy of the tree help to prevent wind and storm damage.

Kemp Winfree (left) oversees operations at Glenwood Estate and is responsible for the preventative treatment of the elm trees on the property. Here he stands in front of the historic home on Charleston's West Side with his grandchildren, William, Malia and Isaac.