Forest Pests and Pathogens in the NCR: A 2025 Summary
Klink A, Nortrup M, Schmit J. 2026. Forest Pests and Pathogens in the NCR: A 2025 Summary. National Park Service
Beech leaf disease, emerald ash borer, spotted lanternfly, and several other pests and pathogens are active in National Capital Region (NCR) parks. Learn what forest vegetation monitoring data through 2025 shows about the condition of tree species like beech and ash and how parks are protecting their forests.
- Type
- Resource Brief
- Authors
- Klink, Ava; Nortrup, Megan; Schmit, John Paul
- Date of Issue
- 2026-08
- Publisher
- National Park Service
- Units
- ANTI , BAWA , CATO , CHOH , GREE , GWMP , HAFE , MANA , MONO , NACE , NCR , NCRN , PISC , PRWI , ROCR , WOTR
- Keywords
- Agrilus planipennis, ANTI, Antietam National Battlefield, Aproceros leucopoda, ash, beech leaf disease, CATO, Catoctin Mountain Park, Chesapeake and Ohio Canal National Historical Park, CHOH, EAB, eastern deciduous forest, elm zigzag sawfly, emerald ash borer, fagus grandifolia, Forest Brief, forest pest, Forest Vegetation, Fraxinus, George Washington Memorial Parkway, GREE, green ash, Greenbelt, GWMP, HAFE, Harpers Ferry National Historical Park, I&M, Inventory & Monitoring, Lycorma delicatula, Lymantria dispar, MANA, Manasass National Battlefield Park, MONO, Monocacy National Battlefield, NACE, National Capital Parks - East, National Capital Region, National Capital Region Network, NCR, NCRN, overbrowsing, PISC, Piscataway, Prince William Forest Park, PRWI, pumpkin ash, Rock Creek Park, ROCR, snags, spongy moth, spotted lanternfly, swamp, Trees, wetland, white ash, Wolf Trap National Park for the Performing Arts, WOTR