Territory Stories

Weed management plan for gamba grass (Andropogon gayanus) : 2010



Weed management plan for gamba grass (Andropogon gayanus) : 2010

Other title

Replaced by Weed management plan for Andropogon gayanus (Gamba Grass) 2014


Northern Territory. Department of Natural Resources, Environment, The Arts and Sport. Natural Resources Division


E-Publications; E-Books; PublicationNT; Weed management plan




This Weed Management Plan forms part of a strategic approach to gamba grass (Andropogon gayanus) management in the NT, with the overall aim being to mitigate the damage caused by gamba grass in relation to the natural environment, property and infrastructure and public health. A comprehensive weed risk management assessment found gamba grass to be a very high risk weed where potential exists for successful management.


Made available by via Publications (Legal Deposit) Act 2004 (NT).

Table of contents

1. Introduction -- 2. Aim and objectives -- 3. Gamba grass declaration status -- 4. Current distribution -- 5. Management requirements -- 6. Eradication and control methods -- 7. Developing a weed seed spread prevention program -- 8. Tracking progress and judging success -- 9. Support and information for land managers -- Appendix A: Summary of management requirements and related actions – gamba grass in class A/C zone -- Appendix B1: Summary of management requirements and related actions – gamba grass in class B/C zone – small landholdings 20ha or less -- Appendix B2: Summary of management requirements and related actions – gamba grass in class B/C zone – large landholdings of more than 20ha -- Appendix C: Summary of management requirements and related actions – gamba grass in public transport or service corridors -- Appendix D: Suggested gamba grass monitoring report template -- Appendix E: Targets -- List of Figures -- List of Tables




Andropogon gayanus; Control; Gamba grass; Weeds

Publisher name

Northern Territory Government

Place of publication



2010 edition


Weed management plan

Now known as

Weed management plan for Andropogon gayanus (Gamba Grass) 2014

Previously known as

Weed management plan for gamba grass (Andropogon gayanus) : draft August 2009


iii, 31 pages : colour illustrations and maps ; 30 cm

File type





Attribution International 4.0 (CC BY 4.0)

Copyright owner

Northern Territory Government



Related materials

Submission to the review of the Weed Management Plan for Andropogon Gayanus (Gamba grass) 2010

Related links

https://hdl.handle.net/10070/265105 [Weed management plan for Andropogon gayanus (Gamba Grass) 2014]; https://hdl.handle.net/10070/300740 [Weed management plan for Gamba Grass (Andropogon gayanus) - August 2018]

Parent handle


Citation address


Page content

Weed Management Plan for Andropogon gayanus (Gamba Grass) 12 6.1.2 Property weed management planning and mapping It is recommended that all land holders that have declared or problematic weeds on their land develop a property weed plan, which includes a detailed assessment of all infestations on the property. The assessment will enable consideration of the weeds current distribution, the potential for spread (along water courses, access tracks/roads, animal movement etc) and potential impacts on land use and other values such as biodiversity. Once this information is collated, priority control areas and suitable control methods can be identified. A property weed plan should detail exactly what needs to occur in order to meet or exceed all requirements of this statutory weed management plan, and any other weed management requirements which may be applicable to a certain property. The Introductory Weed Management Manual is a useful resource which provides basic information on developing a weed management map and other aspects of planning. It is available at http://www.weedscrc.org.au/publications/education_training_resources.html. Alternatively the Weed Management Branch has produced Guidelines for Weed Data Collection in the Northern Territory. These, more technical, guidelines describe what information to collect when mapping, controlling and monitoring weed infestations in the NT. The supply of weed data to the Weed Management Branch, in accordance with these Guidelines, will contribute to the collection of accurate data fundamental to planning and delivering strategic and coordinated weed management across the NT. The guidelines can be downloaded at www.nt.gov.au/weeds. 6.1.3 Timing weed control The growth and reproductive cycles of a weed species must be taken into account when developing a weed plan for your property. Implementing control measures at the wrong time of year can significantly reduce both the short and long-term success of management actions. Table 1 provides an overview of gamba grass growth and reproduction and identifies corresponding optimal treatment times for different control options. It should be noted that peak growth, flowering and seeding times can vary due to seasonal variations, type of environment and as a result of slashing and burning. Table 1: Guide to the management of gamba grass Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Flowering Seed fall Germination Slashing Burning Spraying Striped cells () Approximate times for reproductive events Black cells () Months most suitable for control option specified Shaded cells ( ) Months that are less suitable for control option specified White cells () Months that are unsuitable for control option specified