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Weed Risk

Part of Future Farm Industries CRC’s mission in promoting the use of perennials to improve productivity and sustainability within broadacre agriculture in southern Australia is to make interested parties aware of the opportunities and risks they pose. One such risk posed is weediness. To address this, Future Farm Industries CRC has adopted an Environmental Weed Risk Assessment (EWRA) protocol that guides its decisions on species for field assessment and field site management. The EWRA protocol assists potential adopters in making informed decisions about a perennial’s suitability to a particular locality.

The Environmental Weed Risk Assessment Protocol is divided into three sections:

  • Invasiveness
  • Impacts
  • Distribution.

Each section has a series of questions that generate a score depending on the response given. The scores for invasiveness and impacts are adjusted to range from 0 to 10 (potential distribution is already a score ranging between 0 and 10).

A final weed risk score is then calculated by multiplying the adjusted scores for each section, which can then be used to compare weed risk with other species.

1. Download the Environmental Weed Risk Protocol.
2. Download the Weed Risk Analysis template
3. Download the Weed Risk Score template

4. Download the Genetic Risk Assessment Protocol.

CRC Weed Risk Assessments

 

Species Species synonym Common name Weed Risk Analysis Weed Risk Score
Acacia saligna Acacia cyanophylla Coojong, Golden wreath wattle, Orange wattle, Blue-leafed wattle Download Download
Atriplex amnicola     Download Download
Atriplex semibaccata   Creeping saltbush Download Download
Atriplex nummularia   Old man salt bush Download Download
Austrodanthonia caespitosa Danthonia caespitosa Wallaby grass, Ringed wallaby grass, White top Download Download
Cichorium intybus   Chicory, Witloof, Radichetta Download Download
Chloris gayana
Rhodes grass Download Download
Cullen australisicum Psoralea australasica Native scurf-pea, Native verbine Download Download
Dactylis glomerata   Cocksfoot, Orchard grass Download Download
Ehrharta calycina   Perennial veldt grass Download Download
Eucalyptus occidentalis   Swamp yate, Flat-topped yate Download Download
Eucalyptus polybracctea   Mallee eucalypt Download Download
Eucalyptus rudis   Flooded gum, Swamp gum, Moitch Download Download
Hedysarum coronarium   Sulla, French honeysuckle Download Download
Lolium arundinaceum Festuca arundinacaea Tall fescue Download Download
Lotus corniculatus Lotus major Birdsfoot trefoil Download Download
Medicago sativa   Lucerne Download Download
Megathyrsus maximus Panicum maximum Panic grass, Guinea grass Download Download
Melilotus siculus Melilotus messanensis Mediterranean melilot, Messina Download Download
Pennisetum clandestinum Pennisetum inclusum Kikuyu, West African, pennisetum Download Download
Phalaris aquatica   Phalaris Download Download
Rhagodia preissii   Mallee salt bush Download Download
Secale strictum Secale montanum Mountain rye Download Download
Thinopyrum ponticum
Tall Wheatgrass Download Download

For further information about the Environmental Weed Risk Protocol, contact Christine Munday (Department of Environment and Conservation, Western Australia).

Management guides

So that land owners and farmers can make better decisions about how to manage the weed risks associated with pasture plants, Future Farm Industries CRC has created a series of weed risk management guides which can be downloaded below.

Cocksfoot Weed Management Guide

Phalaris Weed Management Guide

Tall Wheatgrass Weed Management Guide

Kikuyu Weed Management Guide

Minimising Weed and Genetic Risk: experimental site guidelines for perennial species evaluation trials

More Information

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