Riverina Regional Strategic Weed Management Plan 2017

Riverina Regional Strategic Weed Management Plan 2017 - 2022SUMMARY

Developed in partnership with the Riverina Regional Weed Committee

DRAFT

Riverina Regional Strategic Weed Management Plan

Draft Riverina Regional Strategic Weed Management Plan February 2017 2

Executive Summary

The NSW Riverina region supports a diverse and distinct mix of landscape, livelihood, cultural and lifestyle values.

Strategic and coordinated regional weed management is critical to maintaining these values, and building the

sustainability of the Riverina region’s primary industries, natural environments and local communities.

Together, the NSW Biosecurity Strategy 2013-2021 and NSW Biosecurity Act 2015 (which repeals the NSW

Noxious Weeds Act 1993 and is expected to be operational in early 2017) provide a modernised and clear vision

for safeguarding our primary industries, natural environments and communities from a range of biosecurity threats

(i.e., pests, diseases and weeds). The Riverina Regional Strategic Weed Management Plan (the Plan) supports

Goal 1 of the NSW Biosecurity Strategy: “biosecurity is a shared responsibility”.

The Regional Strategic Weed Management Plan was prepared by the Riverina Regional Weeds Committee

(RWC) on behalf of the Riverina Local Land Services Board, with guidance from the State Weeds Committee and

Local Land Services. The Plan focuses on weed risks that affect animal and plant industries, biodiversity, socio-

cultural factors, and infrastructure and service industries.

The Plan sets the priorities for weed management in the Riverina region for five years from 2017, and outlines

strategies and actions to achieve goals that focus on shared responsibility for weed management, sustainable

landscapes and collaborative leadership and innovation (Box 1).

The Biosecurity Act 2015 applies to all land in the region, whether public or private (i.e., it is tenure neutral), and

contains a range of new regulatory tools. These tools support the tenure-neutral approach to managing weed

biosecurity risk, and include Prohibited Matter, Biosecurity Zones, Mandatory Measures and Control Orders. This

Plan outlines these tools and their application.

The Plan also outlines land manager obligations under the General Biosecurity Duty (GBD) in the region, which

for weeds is broadly defined as: “…any person dealing with plant matter must take measures to prevent, minimise

or eliminate the biosecurity risk (as far as is reasonably practicable)”. An expert panel used best available

evidence and an internationally-recognised risk-based prioritisation process to develop the priority weed list for

this Plan. Appendix 1 includes the regional priority weeds to which “recommended measures to discharge the

General Biosecurity Duty” have been identified, and includes state-level priority weeds for the region. Appendix 2

lists other weeds of community concern, identified in the prioritisation process, to provide additional focus for

regional weed management.

Many stakeholders have played important roles in regional weed management planning in past years. This Plan

builds on these past planning efforts and has gained immeasurably from the accumulated experience and expert

local knowledge of Committee members and their networks. The Riverina RWC includes representatives from

local government, the local community, land managers, interest groups and state government agencies.

The Riverina RWC through its members will play an important role in advising Riverina Local Land services in

implementation of the Plan. Stakeholders will come together to develop key processes that facilitate the delivery

of:

shared responsibility

standardised, tenure neutral and prioritised approaches to weed management planning, investment and

delivery across the region

strategic approaches to communicating locally relevant key messages, and engaging partners, stakeholders

and the broader community

coordinated and integrated information management and research capacity


regional measures of performance that track the progressive impacts of our programs and interventions,

investment in priorities and progress towards outcomes for shared responsibility for weed management,

sustainable landscapes and collaborative leadership and innovation

robust monitoring, reporting evaluation and improvement processes that allow for measuring the

performance of this Plan, the effectiveness of the region’s overall investment in weed management, and how

we can improve our weed management projects, programs and policies

Identifying local implementation roles, responsibilities and partnerships will be integral to these processes.

The Plan provides a sound basis for a cooperative and coordinated approach to landscape-scale weed

management in the Riverina region. It articulates what “shared responsibility” means for the region’s communities

and stakeholders, and how they will work together to identify, minimise, respond to and manage high risk weeds,

now and into the future.

Box 1. Goals and actions of the Riverina Regional Strategic Weed Management Plan

Goal 1: Responsibility for weed biosecurity is shared by all people in the Riverina Local Land

Services region

Actions focus on a whole of community approach to weed management, with an emphasis on:

building community capacity

building stronger partnerships

fostering a shared responsibility

increasing awareness

Goal 2: Weed biosecurity supports profitable, productive and sustainable primary industries,

and

Goal 3: Weed biosecurity supports healthy, diverse and connected natural environments

Actions focus on weed biosecurity to protect the environment, the community and sustainable

economic growth. Actions for Goals 2 and 3 have been combined as weed management efforts

provide multiple outcomes across natural environments and primary industries. The emphasis is on:

preventing new weeds from entering the region

eradicating or containing the spread of new weeds that do establish

managing widespread weeds where the benefits are greatest

Goal 4: Weed biosecurity is supported by coordinated, collaborative and innovative leadership

Actions focus on consistent and contemporary approaches to implementing this Plan, with emphasis

on:

providing good governance and leadership to support a collaborative approach

supporting and delivering the weed biosecurity reforms for NSW

implementing risk-based systems across all land tenures in a co-ordinated manner

supporting innovation by embracing continuous learning, information systems, research and

technology


The relationship between Local Land Services, the RWC, the SWC and other customers and stakeholders is

depicted in Figure 1.2.

Figure 1.2: Organisational roles in weed management

Guiding legislation

The NSW Biosecurity Act 2015, NSW Local Land Services Act 2013 and NSW Local Government Act 1993

are the key legislative components that underpin this Plan. The Biosecurity Act 2015 will take effect with

publication of the regulations in the NSW Government Gazette in the first half of 2017. The Act is

administered by NSW Department of Primary Industries (DPI).

2.3 General Biosecurity Duty

The Biosecurity Act 2015 introduces the concept of General Biosecurity Duty (GBD) along with several new

regulatory tools for managing weeds. These tools are outlined in Table 2.1. A GBD applies to all weed

species that present a biosecurity risk regardless of whether or not they are listed in this Plan.

For weeds, the GBD means that any person dealing with plant matter must take measures to prevent,

minimise or eliminate the biosecurity risk (as far as is reasonably practicable). ‘Dealing’ has a broad

definition in the Act and the GBD applies equally to a carrier of plant matter and to any person who knows or

ought reasonably to know of the biosecurity risks associated with the activity. In general, if you deal with or

carry plant matter as part of a commercial, professional, volunteer or recreational activity or lifestyle, you

would be considered to know or ought reasonably to know the risks. Plant matter includes plants, parts of

plants and seeds. Biosecurity is everyone’s responsibility and further explanation of the GBD is available

from the Riverina Local Land Services (LLS) website and local offices, your local council office and NSW

DPI.


Weeds associated with adverse risks, which are not listed in this Plan, will generally be addressed through

community extension activities to ensure that landholders understand the biosecurity risk posed by the weed

and their obligations under the GBD. An authorised officer may accept a Biosecurity Undertaking from the

landholder that details actions and timeframes to reduce the risk posed by the weed infestation. If the

landholder still fails to address the weed problem, a Biosecurity Direction can be issued that provides more

detail on the actions that the landholder must take to manage the weed. Where the weed poses a

biosecurity risk, weed control may be enforced whether or not there is a direct reference to the weed in this

Plan. Key regulatory tools of the Biosecurity Act 2015 are detailed in Table 2.1.

Table 2.1: Tools of the NSW Biosecurity Act 2015

Biosecurity Act Tool

General Biosecurity Direction: an Authorised Officer may give a General Biosecurity Direction to the

public generally or to a specified class of persons, if the officer reasonably believes it is necessary to

do so for any of the following purposes:

to prevent, eliminate or minimise a biosecurity risk

to prevent, manage or control a biosecurity impact that has occurred, is occurring or is likely to occur

to enforce, administer or execute the Biosecurity Act 2015 (including any instrument made under the Act)

Individual Biosecurity Direction: an Authorised Officer may give an Individual Biosecurity Direction

to a particular person if the officer reasonably believes it is necessary to do so for any of the following

purposes:

to prevent the person from contravening or continuing to contravene a requirement imposed by or under the Act,

to prevent, eliminate or minimise a biosecurity risk

to prevent, manage or control a biosecurity impact that has occurred, is occurring or is likely to occur

to enforce, administer or execute the Biosecurity Act 2015 (including any instrument made under the Act)

Biosecurity Undertaking: an Authorised Officer may accept undertakings:

An Authorised Officer may accept a written undertaking (a Biosecurity Undertaking) given by a person if the person has contravened or the authorised officer suspects that the person has contravened or is likely to contravene a requirement imposed by or under this Act.

An Authorised Officer may accept a biosecurity undertaking from a person instead of giving the person a biosecurity direction.

The giving of an undertaking does not constitute an admission of guilt by the person giving it in relation to the contravention, suspected contravention or likely contravention to which the undertaking relates.

A Biosecurity Undertaking must specify:

The contravention, suspected contravention or likely contravention to which the biosecurity undertaking relates, and

the measures that the person has agreed to implement to remedy or prevent the contravention, suspected contravention or likely contravention,

The period or periods by the end of which the measures must be implemented.

Prohibited Matter: a biosecurity matter that is prohibited matter throughout the state or in a part of

the state under section 27 of the Biosecurity Act 2015. Prohibited matter is aimed at prevention and

includes weeds that are nationally targeted for eradication and which are not currently present in NSW.


Biosecurity Act Tool

Control Order: The Minister may, by order in writing (a control order):

establish one or more control zones, and

establish measures, in connection with a control zone, to prevent, eliminate, minimise or manage a biosecurity risk or biosecurity impact.

Control Orders will be proposed as required to address subsequent eradication campaigns where

appropriate.

Biosecurity Zone: under Part 5 of the draft Biosecurity Regulation 2016 one or more Biosecurity

Zones may be established for the purpose of preventing, eliminating, minimising or managing a

biosecurity risk or biosecurity impact. The principal object of a biosecurity zone regulation is to provide

for the long term strategic management of a biosecurity risk or biosecurity impact through containment.

Emergency Order: an Emergency Order may be issued to respond to a current or imminent

biosecurity risk that may have a significant impact.

General Biosecurity Duty: used to manage the spread of all weeds that present a biosecurity risk.

Any person dealing with biosecurity matter must take measures to prevent, eliminate or minimise the

biosecurity risk (as far as is reasonably practicable). The General Biosecurity Duty applies equally to a

carrier of biosecurity matter and to any person who knows or ought reasonably to know of the

biosecurity risks associated with the activity. For priority weeds, recommended measures to reduce

biosecurity risk are detailed in Appendix 1 of this Plan.

Mandatory Measures Regulation: the regulations may require persons who deal with biosecurity

matter or carriers to take specified actions to prevent, eliminate or minimise a biosecurity risk posed or

likely to be posed by the biosecurity matter, carrier or dealing. Those requirements are Mandatory

Measures.


Appendix 1: Priority weeds for the Riverina region

Appendix 1 covers state-level determined priority weeds (A1.1) and regionally-determined priority weeds

(A1.2).

The NSW Biosecurity Act 2015 and regulations provide specific legal requirements for state-level priority

weeds (A1.1) and high risk activities. For each state-level priority weed, the state objective and how this

objective is achieved through specific requirements under the Biosecurity Act 2015 and regulations is

covered. These specific regulatory requirements include Prohibited Matter, Biosecurity Zones, Mandatory

Measures and Control Orders (see Table 2.1).

A1.2 in Appendix 1 identifies priority weeds for the Riverina region to which “recommended measures to

discharge General Biosecurity Duty” have been applied and articulates community expectations for

managing these weeds in the region.


A1.1 State-determined priority weeds for the Riverina region:

State Priority Weed Objective – PREVENTION: The following weeds are currently not found in some parts of the state, pose significant biosecurity risk, and prevention of the biosecurity risk posed by these weeds is a reasonably practical objective for the Riverina region. This list is refined to those state-listed weeds considered of greatest risk in the Riverina region.

Weed species Scientific name Relevant Legislation & Strategic Response

All species of vascular plant Tracheophyta

Mandatory Measure (Part 2, Division 8, Clause 30, draft Biosecurity Regulation 2016): duty to notify of importation of plants into the State: (1) A person must not import a species of vascular plant (Tracheophyta) into the State if the species is not currently present in the State unless the person has, at least 20 working days before the plant is imported into the State, notified the species of plant and its proposed location within the State. (2) The notification is to be given to an authorised officer and is to be given in accordance with Part 6. (3) A species of plant is taken not to be present in the State if the Plant Information Network System of The Royal Botanic Gardens and Domain Trust does not show it as being present in the State.

Note. See http://plantnet.rbgsyd.nsw.gov.au/

Bridal veil creeper Asparagus declinatus

Prohibited Matter (Part 4, Biosecurity Act, 2015): A person who deals with any biosecurity matter that is Prohibited Matter throughout the State is guilty of an offence.

The following legislative requirement also applies:

Mandatory Measure (Part 2, Division 8, Clause 29, draft Biosecurity Regulation 2016): A person must not move, import into the State or sell.

http://plantnet.rbgsyd.nsw.gov.au/




Hawkweeds

Hieraium spp.

Note. Relevant to all of region, excluding Kosciusko National Park. See Regional Priority list below for eradication priorities for orange and mouse-ear hawkweed in Kosciusko National Park.

Recommended measure - Prevent entry to the region:

Implement site specific biosecurity and hygiene protocols

Undertake high risk sites & pathways analysis to identify potential introduction areas and preventative options

Strategic response - New weed incursion response:

Trigger rapid response plan

Supporting documents:

NSW Weeds Action Program mandatory documents

NSW NPWS strategic and operational plans


Draft Control Order - Hieracium aurantiacum (Orange hawkweed) & Hieracium pilosella (Mouse-eared hawkweed): (a) The plant must be eradicated from the land and be fully and continuously suppressed and destroyed; and (b) The lands must be kept free of the plant after eradication; (c) A person who becomes aware of, or suspects the presence of this species is to immediately notify their local control authority; and (d) a person is not required to notify if the person knows that the required notification has already been given by another person.




Parkinsonia Parkinsonia aculeata








Draft Control Order - Parkinsonia aculeata (Parkinsonia): (a) The plant must be eradicated from the land and be fully and continuously suppressed and destroyed; and (b) The lands must be kept free of the plant after eradication; (c) Parkinsonia seed and propagules must not be knowingly moved by stock, machinery, soil, turf or in plant material. (d) a person who becomes aware of, or suspects the presence of this species is to immediately notify their local control authority; and (e) The relevant local control authority must notify the Department of Primary Industries as soon as practicable after becoming aware of, or being notified of any infestation; and (f) a person is not required to notify if the person knows that the required notification has already been given by another person.



Parthenium Weed Parthenium hysterophorus













Mandatory Measure (Division 8, Clause 31) - Parthenium weed carriers and equipment (1) This clause applies to the following equipment: (a) grain harvesters and comb trailers (b) bins used for holding grain during harvest operations (c) augers or similar equipment used for moving grain (d) vehicles used for transporting grain harvesters (e) vehicles used as support vehicles with grain harvesters and that have been driven in paddocks during harvest operations (f) mineral exploration drill rigs and vehicles used for transporting those rigs (2) A person must not import any equipment to which this clause applies into the State from Queensland




Tropical soda apple Solanum viarum








Draft Control Order - Solanum viarum (Tropical soda apple): (a) The plant must be eradicated from the land and be fully and continuously suppressed and destroyed; and (b) The lands must be kept free of the plant after eradication; (c) Tropical Soda Apple seeds and propagules must not be knowingly moved by stock, machinery, soil, turf or in plant material; (d) a person who becomes aware of, or suspects the presence of this species is to immediately notify their local control authority; and (e) a person is not required to notify if the person knows that the required notification has already been given by another person.

Anchored water hyacinth Eichhornia azurea


Black knapweed Centaurea xmoncktonii

Broomrape Orobanche spp. (all species except the native O. cernua var. australiana and O. minor)

Frogbit / Spongeplant Limnobium spp.

Karoo acacia Vachellia karroo (syn. Acacia karroo)

Kochia Bassia scoparia (excluding subsp. trichophylla)

Mexican feathergrass Nassella tenuissima (syn. Stipa tenuissima)

Prickly acacia Vachellia nilotica (syn. Acacia nilotica)

Spotted knapweed Centaurea stoebe subsp. micranthos


State Priority Weed Objective – ERADICATION:

The following weeds are present in limited distribution and abundance in some parts of the state. Elimination of the biosecurity risk posed by these weeds is a reasonably practical

objective within the Riverina Region.


Alligator weed Alternanthera philoxeroides

Recommended measures:

Destruction of all infestations

Strategic response:

Undertake high risk sites & pathways inspections


Detailed surveillance and mapping to locate all infestations

Monitor progress towards eradication



Biosecurity Zone (Part 5, Division 2 draft Biosecurity Regulation 2016)

A biosecurity zone, to be known as the alligator weed biosecurity zone, is

established for all land within the state except land in the following regions:

(a) Greater Sydney,

(b) Hunter (but only in respect of land in the local government area of City of Lake

Macquarie, City of Maitland, City of Newcastle or Port Stephens).

An owner or occupier of land in the Alligator Weed Biosecurity Zone on which there

is the weed Alternanthera philoxeroides (alligator weed) must:

(a) if the weed is part of a new infestation of the weed on the land, notify the local

control authority for the land as soon as practicable in accordance with Part 6, and

(b) eradicate the weed or if that is not practicable destroy as much of the weed as is

practicable and suppress the spread of any remaining weed.


Mandatory Measure (Part 2, Division 8, Clause 29, draft Biosecurity Regulation

2016): A person must not move, import into the State or sell.






Bitou bush Chrysanthemoides monilifera ssp. rotundata



Strategic response:

Undertake high risk sites and pathways inspections






Biosecurity Zone

A Biosecurity Zone, to be known as the Bitou Bush Biosecurity Zone, is established

for all land within the State except land within 10 kilometres of the mean high water

mark of the Pacific Ocean between Cape Byron in the north and Point Perpendicular

in the South.

Biosecurity Zone (Part 5, Division 3, Clause 67, draft Biosecurity Regulation 2016)

An owner or occupier of land in the bitou bush Biosecurity Zone on which there is

the weed Chrysanthemoides monilifera subsp. rotundata (Bitou bush) must:













Boneseed Chrysanthemoides monilifera ssp. monilifera



Strategic response:







Draft Control Order Chrysanthemoides monilifera ssp. monilifera (Boneseed):

(a) The plant must be eradicated from the land and be fully and continuously

suppressed and destroyed; and

(b) The lands must be kept free of the plant after eradication;

(c) boneseed seeds and propagules must not be knowingly moved by stock,

machinery, soil, turf or in plant material;

(d) a person who becomes aware of, or suspects the presence of this species is to

immediately notify their local control authority; and

(e) a person is not required to notify if the person knows that the required

notification has already been given by another person.









Water hyacinth Eichhornia crassipes



Strategic response:







Biosecurity Zone (Part 5, Division 4 draft Biosecurity Regulation 2016)

A Biosecurity Zone, to be known as the water hyacinth biosecurity zone, is

established for all land within the State except land in the following regions:

(a) Greater Sydney or North Coast,

(b) North West or Northern Tablelands (but only land in those regions that is in the

local government area of Inverell, Moree Plains or Tenterfield),

(c) Hunter (but only land in that region that is in the local government area of City of

Cessnock, City of Lake Macquarie, City of Maitland or Port Stephens),

(d) South East (but only land in that region that is in the local government area of

Eurobodalla, Kiama, City of Shellharbour, City of Shoalhaven or City of Wollongong).

An owner or occupier of land in the water hyacinth biosecurity zone on which there

is the weed Eichhornia crassipes (water hyacinth) must:









State Weed Objective – Weeds of National Significance (WoNs) obligations for WoNs present in the Riverina region. This list contains WoNs not listed as priority weeds for the

state or region within this plan. They may also be listed as weeds of high community concern in Appendix 2.

Species Relevant Legislation & Strategic Response

African boxthorn - Lycium ferocissimum

The following legislative requirement applies:

Mandatory Measure (Part 2, Division 8, Clause 29,

draft Biosecurity Regulation 2016): A person must

not move, import into the State or sell.

Asparagus weeds - Asparagus aethiopicus, A. africanus, A. asparagoides Western Cape form, A. plumosus, A. scandens

Athel Pine - Tamarix aphylla

Blackberry - Rubus fruticosus agg.

Cabomba – Cabomba caroliniana

Lantana - Lantana camara

Opuntia Opuntia spp., Cylindropuntia spp., Austrocylindropuntia spp. (Excludes O. ficus- indica) (opuntioid cacti)

Silver-leaf nightshade Solanum elaeagnifolium

Willows –Salix spp. except S. babylonica, S. X calodendron and S. X reichardtiji (willows except weeping willows, pussy

willow and sterile pussy willow)


A1.2 Regional priority weeds for the Riverina region:

Regional Priority Weed Objective – PREVENTION:

The following weeds are not found in the majority of the region, pose significant biosecurity risk and the prevention of the biosecurity risk posed by these weeds is reasonably

practicable.

Recommended measures & strategic responses Relevant legislation & outcomes to demonstrate compliance with the General Biosecurity Duty

Salvinia - Salvinia molesta Whole of region


Implement site specific biosecurity and hygiene

protocols

Undertake high risk sites & pathways analysis to

identify potential introduction areas and

preventative options





The following legislative requirement also applies;

Mandatory Measure (Part 2, Division 8, Clause 29, draft Biosecurity Regulation 2016): A person must not move, import

into the State or sell.

Land managers should mitigate the risk of new weeds being introduced to their land

Notify Local Control Authority if found

The plant should be eradicated from the land and the land kept free of the plant

Water lettuce - Pistia stratiotes Whole of region



protocols

Undertake high risk sites & pathways analysis to

identify potential introduction areas and

preventative options






Notify Local Control Authority if found


The plant should not be bought, sold, grown, carried or released into the environment.


Regional Priority Weed Objective – ERADICATION:

The following weeds are present in limited distribution and abundance. Elimination of the biosecurity risk posed by these weeds is reasonably practicable:


Black willow – Salix nigra Whole of region


Destruction of all infestations where feasible

Strategic response:



protocols

Detailed surveillance and mapping to locate all

infestations







Notify local control authority if found


Coolatai grass – Hyparrhenia hirta Whole of region



Strategic response:



protocols


infestations







The plant should not be bought, sold, grown, carried or released into the environment





Fireweed - Senecio madagascariensis Whole of region



Strategic response:



protocols


infestations

Monitor progress towards eradication.









Flax-leaf broom - Genista linifolia Whole of region



Strategic response:



protocols


infestations














Gorse - Ulex europaeus Whole of region



Strategic response:



protocols


infestations










Grey sallow - Salix cinerea Whole of region

Recommended measures: Destruction of all infestations, where feasible Strategic response:
















Hawkweeds

Hieracium aurantiacum (Orange hawkweed) &

Hieracium pilosella (Mouse-eared hawkweed)

Kosciuszko NP (see prevention objective for further measures for all Hawkweed species)


Land manager to comply with Control Order for this

weed

Strategic response:



protocols


infestations




NSW NPWS strategic and operation plans

Prohibited Matter (Part 4, Biosecurity Act, 2015): A person who deals with any biosecurity matter that is Prohibited

Matter throughout the State is guilty of an offence.

Draft Control Order - Hieracium aurantiacum (Orange hawkweed) & Hieracium pilosella (Mouse-eared hawkweed):

(a) The plant must be eradicated from the land and be fully and continuously suppressed and destroyed; and

(b) The lands must be kept free of the plant after eradication;

(c) A person who becomes aware of, or suspects the presence of this species is to immediately notify their local control

authority; and

(d) a person is not required to notify if the person knows that the required notification has already been given by

another person.

Mesquite - Prosopis spp. Whole of region



Strategic response:



protocols


infestations














Scotch broom - Cytisus scoparius Whole of region excluding Snowy Valleys Council (see control objective for further measures for Scotch broom)



Strategic response:



protocols


infestations









The plant should be eradicated from the land and the land kept free of the plant.

Serrated tussock - Nassella trichotoma Whole of region



Strategic response:



protocols


infestations











Regional Priority Weed Objective – CONTAINMENT:

While broad scale elimination is not practicable, minimisation of the biosecurity risk posed these weeds is reasonably practicable.


Chilean needlegrass - Nassella neesiana Whole region



Strategic response:



protocols


infestations

Monitor change in current distribution








Land managers should prevent the spread from their land


Green cestrum – Cestrum parqui Whole region



Strategic response:



protocols


infestations












Hardhead thistle - Rhaponticum repens Whole region



Strategic response:



protocols


infestations








Montpellier / cape broom - Genista monspessulana Whole region



Strategic response:



protocols


infestations














Perennial ground cherry - Physalis longifolia Whole region



Strategic response:



protocols


infestations








Prairie ground cherry - Physalis hederifolia Whole region



Strategic response:



protocols


infestations












Sagittaria – Sagittaria platyphylla Whole region



Strategic response:



protocols


infestations









Scotch broom - Cytisus scoparius Snowy Valleys Council (see eradication objective for further measures for Scotch broom)



Strategic response:



protocols


infestations














Ox-eye daisy - Leucanthemum vulgare Whole region



Strategic response:



protocols


infestations





Notify local control authority if found - a person is not required to notify if the person knows that the required

notification has already been given by another person


Water poppy - Hydrocleys nymphoides Whole region



Strategic response:



protocols


infestations











Yellow waterlily - Nymphaea mexicana Whole region



Strategic response:



protocols


infestations








Appendix 2: Other regional weeds list

Appendix 2 lists species that are widespread in parts of the region and are of high community concern/priority

to manage because of their extent and impact. These weeds are a direct threat to agricultural production and

the environment, and control should be undertaken to contain them locally. The Regional Strategic Response

includes:

working within existing widespread weed programs, community groups and industry for strategic asset

protection

prioritising the application of the General Biosecurity Duty to assist with management of these species

Common name Scientific name

African boxthorn Lycium ferocissimum

African lovegrass Eragrostis curvula complex

Athel pine Tamarix aphylla

Bathurst burr Xanthium spp.

Bear-skin fescue Festuca gautieri

Bitter Stonecrop Sedum acre

Blackberry Rubus fruticosus (agg)

Blue heliotrope Heliotropium amplexicaule

Bridal creeper Asparagus asparagoides

Buffalo burr Solanum rostratum, Moraea spp.

Caltrop Tribulus terrestris

Cape tulips Homeria spp.

Columbus grass Sorghum x almum

Devil's claw Ibicella lutea or Proboscidea louisianica

Galvanised burr Sclerolaena birchii

Golden dodder Cuscuta campestris

Green cestrum Cestrum parqui

Harrisia cactus Harrisia martinii and H. tortuosa

Himalaya honeysuckle Leycesteria formosa

Honey locust Gleditsia triacanthos

Horehound Marrubium vulgare

Indian fig Opuntia ficus-indica

Johnson grass Sorghum halepense

Khaki weed Alternanthera pungens

Lippia Phyla canescens

Long-leaf willow primrose Ludwigia longifolia

Pampas grass Cortaderia spp.

Prickly pear Cylindropuntia spp.

Prickly pear Opuntia spp.

Privet (broad-leaf) Ligustrum lucidum

Privet (narrow-leaf) Ligustrum sinense

Reed Canary Grass Phalaris arundinacea

Reed Sweetgrass Glyceria maxima


Common name Scientific name

Rhus tree Toxicodendron succedaneum

Scotch & Illyrian thistles Onopordum spp.

Silk forage sorghum Sorghum spp. hybrid cv.Silk

Silverleaf nightshade Solanum elaeagnifolium

Spanish heath Erica lusitanica

Spiny burrgrass Cenchrus incertus & C. longispinus

Spiny emex Emex australis Steinh

St Barnaby's thistle Centaurea solstitialis

St John's wort Hypericum perforatum

Sweet briar Rosa rubiginosa

Tangled Hypericum Hypericum triquetrifolium

Tree of heaven Ailanthus altissima

Regional Strategic Weed Management Plan2017 - 2022

Documents

Riverina Regional Strategic Weed Management Plan 2017