Orange Hawkweed Control Program Report 2013-14

This report documents the status of orange hawkweed within Kosciuszko National Park at the end of the 2013-14 Orange Hawkweed Control Program.

Date
1 November 2014
Publisher
Office of Environment and Heritage
Type
Publication
Status
Final
Cost
Free
Language
English
Tags
  • ISBN 978-1-74359-788-0
  • ID OEH20140756
  • File PDF 2.7MB
  • Pages 41
  • Name orange-hawkweed-control-program-report-2013-14-140756.pdf

Orange hawkweed (Heiracium aurantiacum), discovered in Kosciuszko National Park (KNP) in December 2003, is a perennial herb that displaces native vegetation and reduces the productivity of agricultural lands it invades. This weed, listed as a Class 1 Noxious Weed (NSW), is currently confined to NPWS land where it poses a significant threat to biodiversity. If it is not contained, this species has potential to establish in grazing land east and west of the Park boundary. The invasive nature of orange hawkweed is evident from its establishment history in other countries, such as New Zealand. Here hawkweeds have become widespread, replacing much of the native vegetation, threatening biodiversity and traditional pastoral practices (Espie & Boswell, 2002).