Beech Leaf Disease is actually a pest, not a disease. It's caused by a roundworm, or nematode, that lives in the buds and leaves of Beech Trees. It's a relatively new problem in our landscape. The recommended treatment is rapidly evolving as new science and data is being discovered and tested. We are in constant communication with the plant pathology department at UMass, MDAR, and other industry experts to treat your prized Beech tree with the most up-to-date, state-approved program. At BTSE, we offer custom Beech Programs that include soil tests, pest and disease control, and soil amendments.