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 Phalaris (Phalaris aquatica). Phalaris is a winter-active, temperate perennial grass native to the Mediterranean region which was introduced into Australia in the late 1800s. It is widely grown in pastures in south-eastern Australia but is a minor pasture species in high rainfall south-western Australia. Phalaris requires annual rainfall greater than 500mm and a growing season longer than 6 months to persist (Sanford 2006). Phalaris has become naturalised and is common along roadsides in high rainfall areas of south-western Australia, particularly on medium-textured soils formed on fresh rock. Phalaris is a cool season grass and is unsuited to northern Western Australia (WA) even under irrigation.
Number of Pages
3
Keywords
weed risk, assessment, biosecurity, Western Australia, Phalaris, Phalaris aquatica
Disciplines
Biosecurity | Weed Science
Recommended Citation
Department of Primary Industries and Regional Development, Western Australia.
(2022), Phalaris aquatica - environmental weed risk assessment 2022. Department of Primary Industries and Regional Development, Western Australia, Perth. Report.
https://library.dpird.wa.gov.au/bs_wra/79
