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 Italian ryegrass (Lolium multiflorum). Italian ryegrass is a long season annual or biennial pasture grass which are diploid or tetraploid hybrids. It is used as a short-term pasture or as a high-yielding silage/hay crop and so requires regular re-seeding. In south-western Australia Italian ryegrass is included in pasture mixes in high rainfall dairy pastures. In irrigated experiments in northern Western Australia (WA) Italian ryegrass produced high-quality feed but had modest productivity over winter under subtropical conditions and as such does not appear to be a viable forage option (Moore et al. 2021).
Number of Pages
3
Keywords
weed risk, assessment, biosecurity, Western Australia, Italian ryegrass, Lolium multiflorum
Disciplines
Biosecurity | Weed Science
Recommended Citation
Department of Primary Industries and Regional Development, Western Australia.
(2022), Lolium multiflorum - environmental weed risk assessment 2022. Department of Primary Industries and Regional Development, Western Australia, Perth. Report.
https://library.dpird.wa.gov.au/bs_wra/60
