Weed risk assessment

The Northern Territory Weed Risk Management System is an evidence-based framework for assessing the relative weed risk and feasibility of control of weeds. Weed Risk Assessments are conducted by a panel of experts known as the ‘Weed Risk Technical Committee’ using the Northern Territory Weed Risk Management System User Guide

The Weed Risk Assessment Matrices have been sourced from the Regional Weeds Strategies.

The NT Weed Risk Management (WRM) System was jointly developed by Charles Darwin University (CDU) and the agency's Weed Management Branch.

The following regional matrices identify the weed risk of local weeds, and how the risk is to be approached.

• Darwin PDF (190.1 KB)
• Katherine PDF (179.2 KB)
• Tennant Creek PDF (194.6 KB)
• Alice Springs PDF (208.0 KB)

The risk assessments that have been published are available here:

• Athel pine PDF (1.0 MB)
• Boerhavia WRA Technical Report 2018
• Buffel grass WRA Technical Report 2022 | Buffel grass WRA Summary Review 2022
• Brazilian pepper PDF (794.4 KB)
• Fountain grass PDF (768.8 KB)
• Leaf cactus PDF (610.8 KB)
• Parrots feather PDF (554.9 KB)
• Thatch grass PDF (819.0 KB)
• Yellow oleander WRA Technical Report 2018