Publication Date
2022
Publisher
Department of Primary Industries and Regional Development, Western Australia
City
Perth
Abstract
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Couch, couch grass, Bermuda grass (Cynodon dactylon). Couch grass is a creeping grass with rhizomes which is commonly grown as a lawn or turf grass and is also grown as a pasture grass, especially in south-eastern United States. There is considerable debate as to whether couch is native to northern Australia, with the general consensus that it was a pre-European introduction (Weeds of Australia). Hussey et al. (2007) state that C. dactylon is “native to the Kimberley and the tropics worldwide.” This is a species with native forms in the tropics, but with exotic weedy forms in temperate Western Australia (Keighery and Longman 2004).
Number of Pages
2
Keywords
Couch, couch grass, Bermuda grass, Cynodon dactylon, weed risk, assessment, biosecurity, Western Australia
Disciplines
Biosecurity | Weed Science
Recommended Citation
Department of Primary Industries and Regional Development, Western Australia.
(2022), Cynodon dactylon - environmental weed risk assessment 2022. Department of Primary Industries and Regional Development, Western Australia, Perth. Report.
https://library.dpird.wa.gov.au/bs_wra/30
