University Park elm trees to be sprayed beginning July 14

July 08, 2021

UNIVERSITY PARK, Pa. — Starting Wednesday, July 14, the Penn State Office of Physical Plant (OPP) will conduct the second of its annual two-part elm tree spraying program at University Park. An aerial application by helicopter will take place at first light on July 14, and nighttime spraying from the ground will occur on either July 14, 15 or 16, depending on weather conditions. Signage will be posted in the affected areas.

The Office of Physical Plant sprays the elm trees each year in May and July to slow the spread of both Dutch elm disease and elm yellows, and to protect the remaining iconic elms on the University Park campus. These applications are carefully timed to best control the disease and benefit the trees, and to be as minimally invasive as possible to the campus community and the trees’ diverse ecosystem.

OPP thanks the campus community for understanding the need and cooperating with this important program aimed at preserving the campus’ elm trees.

Note: This work has been rescheduled from July 12 to July 14 due to adverse weather conditions. Additional weather delays are possible.

Last Updated July 13, 2021