Invasive Vegetation Management 2018 Annual Report
Hooke JS, McNelly J, Randall DR, Hender T, Hasty H, Iverson A. 2019. Invasive Vegetation Management 2018 Annual Report. National Park Service. Crater Lake National Park
Work performed in 2018 by Crater Lake National Park’s Invasive Vegetation Management program continued a steady 16-year effort to detect, contain, and reduce infestations of invasive plant species within the Park. A major accomplishment was implementation of the Park’s new Invasive Vegetation Management Plan for its first full field season. Using manual and chemical methods an estimated 88,750 invasive plants were treated in 2018. One new-to-the-Park invasive plant species, common tansy (Tanacetum vulgare), was discovered along a Park roadside. Previously undetected infestations of invasive plants were found in meadows near Thousand Springs and within areas burned by recent fires. The Rim Drive Rehabilitation and Pacific Crest Trailhead well construction projects continued to bring challenges to the IVM program due to substantial ground disturbance and increased potential for invasive plant introductions.
- Type
- Unpublished Report
- Authors
- Hooke, Jennifer; McNelly, John; Randall, Delacey; Hender, Thomas; Hasty, Hamilton; Iverson, Alissa
- Date of Issue
- 2019-01
- Publisher
- National Park Service
- Units
- CRLA
- Keywords
- Invasive, Plants, Treatment, Vegetation
- Subjects
- Ecological Framework: Biological Integrity | Invasive Species | Invasive/Exotic plants