Ask the Arborist: How can I protect my Beech trees before it’s too late?

Over the last several years, Beech trees throughout our region have faced increasing pressure from Beech Leaf Disease. Bartlett Tree Experts has been at the forefront of diagnosing and managing this serious issue, and we are here to help property owners in Lebanon and Lancaster counties protect and preserve their valuable beech trees.

What is Beech Leaf Disease?

Beech Leaf Disease (BLD) is a serious condition affecting Beech trees, caused by the microscopic nematode Litylenchus crenatae mccannii. First identified in Ohio in 2012, the disease has spread rapidly across North America, causing canopy decline and, in many cases, eventual tree mortality. Common symptoms include dark green striping between leaf veins, thickened leaf tissue, and leaves that curl or shrivel over time. Because trees with few or no visible symptoms may still become infected, early evaluation and preventative treatment are strongly recommended.

How do I save my tree?

Bartlett’s research team has spent years investigating effective treatment options for Beech Leaf Disease. Through major research findings, field trials, and laboratory studies, Bartlett scientists have developed two distinct management programs that have been shown to effectively suppress BLD symptoms and help protect tree health over time.

First is a program that involves foliar applications to small beech trees, including hedges. This program begins in mid-summer and continues through the peak nematode activity season, mid-to-late summer through early fall.

The second program, intended for medium to large beech (including those near water), is a root flare injection implemented by mid-summer. Research indicates a single injection treatment can provide significant BLD suppression for a minimum of two seasons.

Both programs target nematode populations at a critical stage in their life cycle and help reduce migration into developing vegetative buds. Cultural practices and soil care also remain essential components of long-term beech health management, especially since BLD can disrupt beneficial root associations. It is also important to choose treatments carefully, our research shows some  some products may cause vascular damage and contribute to long-term decline.

Beech trees are vital to our ecosystem. Their dense canopy provides a habitat for numerous plant species, creating a rich and diverse ecosystem. Their Beech nuts also provide food for many animals and their thick dense canopy is crucial for bird habitat and the forest floor.  It’s important that we save this native tree so our children can experience their beauty.

Brandon Yeager proudly serves Bartlett Tree Experts clients throughout Lebanon and Lancaster counties. He is a Certified Arborist, a Certified Tree Care Safety Professional, and TRAQ Certified (Tree Risk Assessment Qualification). If you have a beech tree on your property, now is the time to act. For questions, professional guidance, or to schedule a free consultation, email Byeager@bartlett.com or call 1-877-Bartlett or 717-285-7099.