Maple Petiole Borer

Leaves severed by Petioles in Sugar Maple on the Colgate University campus in Hamilton

Evidence of the Maple Petiole Borer has generated several requests from people in Manlius and Cazenovia to have their Maples inspected. I have also observed it at Colgate University in Hamilton on several small- to medium-size Sugar Maples. This is typical for our area from late May through early June, and seems to occur randomly from year to year, appearing on some trees and not others. Seeing green leaves suddenly fall off their tree can cause homeowners great alarm and a little bit of a nuisance with leaves on the lawn. Fortunately, it’s not a serious threat to tree health and usually will last for about one week. I found the University of Minnesota Extension Service technical brief on this pest to be well written and helpful for more understanding of this occurrence.


Local Manager - Syracuse, NY
ISA Board-Certified Master Arborist
AAS Forestry at Paul Smith’s College (1975)
BS Resource Management SUNY College of Environmental Science and Forestry, Syracuse, NY (1977)

Has spent 34 years as a practicing arborist, joining Bartlett Tree Experts in 1991. Past President New York State Arborists chapter of ISA (1999) and recipient of the Distinguished Arborist Award, NYSA (2003). As an arborist, provides quality tree care by assessing plant health, diagnosing problems, and recommending innovative, effective management plans.

Posted in Pests and Diseases Tagged with: , ,
Bartlett Tree Experts logo

Being a leader in the tree care industry means continually focusing on learning and innovation. Bartlett’s Tree Topics blog follows in that tradition by offering a place to receive advice on trees, tree pests, tree preservation, and more.

Facebook LogoTwitter Logo
bartlett arborist consultation with customerMake an appointment with your local Arborist Representative to discover why Bartlett is the leader in professional tree care.