For private landowners, the County authority will determine if a property will qualify to participate in the gypsy moth suppression program. Landowners must contact their County gypsy moth coordinator by July 15 to have their property evaluated, and to be considered for inclusion in the following year's gypsy moth suppression program.
| Location | Contact Information |
| Adams County | (717) 334-6271 Ext. 319 |
| Allegheny County | (412) 350-6500 |
| Armstrong County | (724) 548-3429 |
| Beaver County | (724) 378-1701 |
| Bedford County | (814) 623-7900 Ext. 110 |
| Berks County | (610) 372-4657 Ext. 218 |
| Blair County | (814) 696-0877 Ext. 5 |
| Bradford County | (570) 268-4103 |
| Bucks County | (215) 345-7577 Ext. 104 |
| Butler County | (724) 284-5270 |
| Cambria County | (814) 534-2811 |
| Cameron County | (814) 486-2315 |
| Carbon County | (570) 325-3669 |
| Centre County | (814) 355-6791 |
| Chester County | (610) 344-6684 |
| Clarion County | (814) 226-9230, (814) 226-8892 |
| Clearfield County | (814) 765-2629 |
| Clinton County | (570) 893-4080 |
| Columbia County | (570) 389-9146 |
| Crawford County | (814) 763-5269 |
| Cumberland County | (717) 240-6348, (717) 240-6349 |
| Dauphin County | (717) 921-8100 |
| Delaware County | (610) 891-5311 |
| Elk County | (814) 776-5373 |
| Erie County | (814) 825-6403 |
| Fayette County | (724) 438-0111 |
| Forest County | (814) 755-3450 |
| Franklin County | (717) 261-3855 |
| Fulton County | (717) 294-3979 |
| Greene County | (724) 852-5278 |
| Huntingdon County | (814) 643-3091 |
| Indiana County | (724) 463-8547 Ext. 4 |
| Jefferson County | (814) 849-7463 |
| Juniata County | (717) 436-8953 Ext. 5, (717) 436-9128 |
| Lackawanna County | (570) 963-6850 |
| Lancaster County | (717) 299-8216 |
| Lawrence County | (724) 656-2165, (724) 656-2120 |
| Lebanon County | (717) 272-3908 Ext. 112, (717) 272-3377 |
| Lehigh County | Does Not Participate |
| Luzerne County | (570) 331-7053, (570) 331-7046 |
| Lycoming County | (570) 433-3007 |
| McKean County | (814) 887-3235 |
| Mercer County | (724) 662-2242 |
| Mifflin County | (717) 248-4695 |
| Monroe County | (570) 420-3525, (570) 420-3754 |
| Montgomery County | (610) 489-4506, (610) 489-9795 |
| Montour County | (570) 271-3000 |
| Northampton County | (610) 746-1983 |
| Northumberland County | (570) 286-7114 Ext. 4 |
| Perry County | (717) 582-8988 Ext. 111 |
| Philadelphia County | (215) 685-0058 |
| Pike County | (570) 226-8220 |
| Potter County | (814) 274-8254, (814) 274-8901 |
| Schuylkill County | Does not participate |
| Snyder County | (570) 837-0007 Ext. 112, (570) 837-3000 |
| Somerset County | (814) 445-1544, (814) 445-1575 |
| Sullivan County | (570) 928-7057, (570) 928-8258 |
| Susquehanna County | (570) 278-4600 |
| Tioga County | (570) 723-8251 |
| Union County | (570) 524-3860 |
| Venango County | (814) 676-2832, (814) 676-2927 |
| Warren County | (814) 563-3117 |
| Washington County | |
| Wayne County | (570) 253-0930 |
| Westmoreland County | (724) 830-3106, (724) 830-3029 |
| Wyoming County | (570) 836-3200, (570) 836-7244 |
| York County | (717) 840-7429 |