UNIVERSITY PARK, Pa. — Starting at first light on Tuesday, July 16, the Penn State Office of Physical Plant (OPP) will conduct the second round of its annual two-part elm-tree spraying program at University Park. An aerial spray application by helicopter is set to take place at daybreak (estimated time 5:30 a.m.).
The application is weather-permitting and signage will be posted in the affected areas.
OPP sprays the historic campus 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 disruptive as possible to the campus community.