Invasive Vegetation Management 2021 Annual Report
von Bergman A, Hasty H, Hooke JS. 2022. Invasive Vegetation Management 2021 Annual Report. National Park Service. Crater Lake National Park
Work performed in 2021 by Crater Lake National Park’s Invasive Vegetation Management program continued a steady 19-year effort to detect, contain, and reduce infestations of invasive plant species within the Park. The 2021 season marked the fifth year in which the Invasive Vegetation Management Plan was implemented, and the fourth full field season of Park-wide herbicide application. Using manual and chemical methods an estimated 77,560 invasive plants were treated in 2021. Two new-to-the-park invasive plant species were discovered this year: dog fennel (Athemis cotula) and hairy bittercress (Cardamine hirsuta) were found along west Highway 62 and the Ball Diamond staging area, respectively.
- Type
- Unpublished Report
- Authors
- von Bergman, Alexandra; Hasty, Hamilton; Hooke, Jennifer
- Date of Issue
- 2022-04
- Publisher
- National Park Service
- Units
- CRLA
- Keywords
- Invasive, Plants, Treatment, Vegetation
- Subjects
- Ecological Framework: Biological Integrity | Invasive Species | Invasive/Exotic plants