Spongy (Gypsy) Moth Resources

The spongy moth (formerly known as the gypsy moth) has been a destructive forest and tree pest in Pennsylvania since 1932. Infestations are cyclic and regional, so different portions of the state may be affected during each cycle.

College Township will not have a spongy moth spraying program in 2023. However, College Township Council did authorize a budget allocation to help offset the contractual costs borne by Mount Nittany Conservancy for the spraying of properties on Mount Nittany, where there was some evidence of infestation.   

The following links are provided to give residents additional information on the spongy moth, as well as, resources to aid in combatting the latest infestation: 

Penn State Extension - providing good information on spongy moth life cycle, treatment windows and options. 

PA Department of Conservation & Natural Resources - providing addition information on the spongy moth and tips for homeowners with infestations. 

PA DCNR Spraying Program Map - Daily spraying program map

PA Game Commission - providing information of PA Game Commission's approach to spongy moth control.

PA Game Commission Spraying Program Map - GIS map of the PA Game Commission spray blocks.

Centre County Government - during past countywide infestations, Centre County Government managed a spraying program. While there is no County program budgeted in 2023, this page still provides relevant information and resources. 

Homeowner Guide to Spongy Moth Management (PDF) - a resource developed by West Virginia University Extension Services to aid homeowners in the management of spongy moths. 

Maturing spongy moth caterpillar. Photo courtesy of Brian Schildt, PDA