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

	Photos by Steve Mayer, Extension Educator-Horticulture Purdue Extension Marion County
Close Up of Maple Petiole Borer Larva with Frass		Maple Petiole Borer Larva

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