Richard Eaton is a Certified Arborist and Forester--in other words, a tree doctor who writes prescriptions. The Sargent Hemlocks were treated with Horticultural Oil for the insect problems caused by the Hemlock Wooly Adelgid. "This is an Asian insect that probably came in with the World's Fair in the '60's on some Japanese plants," said Mr. Eaton. "In Asia, there are natural controls, but not so here. During the last decade, the insects have wreaked much damage and trees suffer diminished stature as a result. On-going maintenance is necessary because the insect travels on the wind and so trees are always vulnerable. The object is to arrest the disease and treat the physiological damage to the roots in order to restore the crown." For this reason, he administered a biostimulant to help restore the root system and a systemic insect control through the root zone that will help protect the tree through the next year. The team pruned back some competing limbs in the overtopping trees and some of the larger limbs in the Hemlocks themselves. Mr. Eaton added, "This variety of Sargent Hemlock is very special, probably coming from Henry Wintrop Sargent's estate in Beacon. The Rockefellers might have gotten a cutting from this prize variety. Henry Wintrhop Sargent was a cousin of John Singer Sargent, the artist, so this tree has an impressive lineage." The Friends president, George F. Gumina, expressed gratitude to Sav A Tree for providing this needed medical attention and applauded their community service and spirit. Evelyn Hadad | 
