P&PDL Logo



The P&PDL Picture of the Week



Maple Petiole Borer

Symptoms are curled leaves beyond the petiole. Examination of the petiole reveals a hollow hole. This borer is a sawfly that has one generation a year. Though many leaves can be lost in a single year, there is no detrimental damage.

Click on the small image to view a larger image.
Leaf damaged by Maple Petiole Borer Closer View of Damage caused by Maple Petiole Borer Close Up View of Damaged Petiole
Leaf damaged by Maple Petiole Borer Closer View of Damage caused by Maple Petiole Borer Close Up View of
Damaged Petiole
Close Up of Mape Petiole Borer Larva with Frass Photos by Steve Mayer, Extension Educator-Horticulture Purdue Extension Marion County Maple Petiole Borer Larva
Close Up of Maple Petiole Borer Larva with Frass Maple Petiole Borer Larva

Top of page. | Current Picture of the Week | Past P&PDL Pictures of the Week


|P&PDL Home Page |


Last updated: 10 May 2001/tlm
The Plant & Pest Diagnostic Laboratory at Purdue University.