Noogoora Burr

Download weedsheet

Download weedsheet

Noogoora Burr control

Access all the information needed for control of this noxious weed, including weed identification, herbicide application and spray timings.

Weed Description

Description

Noogoora burr is a short-lived, usually annual, shrub that is often abundant after spring and summer floods. It typically grows to around 1 m but may grow to around 2.5 m under ideal conditions and in the absence of a commonly-occurring leaf and stem rust and stem-boring and stem-galling insects.
The stems of the plant are rough to the touch, and feature short bristly hairs along its length. The leaves are usually a darker green towards the tips, and get paler as they get closer to the stalk.

The leaves are covered in small bristles and are coarsely toothed around the edges, with 3 prominent reddish veins extending to each of the 3 lobes.
The burrs themselves grow typically to around 7–25 mm long and are covered in hooked spines.

Each burr contains two seeds. Seedlings are poisonous to stock and may cause losses if eaten in sufficient quantities and the burrs are a costly contaminant in wool. Noogoora burr is a significant competitor in pastures and can be a serious weed in summer crops.

Weed Control

Controlling Noogoora Burr

When the infestation is small, Noogoora Burr can be removed by hand, ensuring the entire taproot is removed and disposed of by burning to prevent regrowth. Cultivation can be effective as long as it is performed before flowing.

For more extensive we recommend the use of Starane™ Advanced Herbicide as a foliar spray at a rate of 0.45mL/1L of water.

Herbicides for control of Noogoora Burr

Product#
Method of application Rate* State
Fallowboss Tordon™ Boom application 1 L/ha NSW, Old
Statesman™ 720 Herbicide Boom application 700 to 980 mL/ha ACT, NSW, NT, Old, Tas
Starane™Advanced Herbicide Foliar spray 45 mL/ 100 L of water All
Stinger™ Herbicide Foliar spray 14 g/100 L of water + surfactant NSW
Statesman™ 720 Herbicide Foliar spray 140 mL/ 100 L of water NT, Old, Tas

# Note: Preferred product option in bold. * Consult label for details of growth stage and use, especially where range of rates is given.

Treatment Timing

Timing

For best results spray when plants are actively growing and ensure thorough coverage of all foliage and stems.

PRODUCT Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug
Starane Advanced
KEY
Best time to spray/treat
Can spray/treat
if conditions are suitable
Do not spray/treat