North West Weeds 
Your local guide to local noxious weed control (NSW, Australia)

    Spiny burrgrass

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North West Weeds
ABN 16 052 158 879
Postal address:
20 Dinoga Street
BINGARA
NSW 2404

Spiny burrgrass (two species: Cenchrus incertus and C. longispinus) is a native of North America. Other common names for this plant include Bohena beauty, innocent weed and gentle Annie.

Common in arid areas on light soils. Spiny burrgrass is a very difficult plant to control because, for most people, it is so hard to identify until it actually comes into seed. By then, the seeds have already been spread by animals, vehicles, clothing and/or water.

The burrs are a curse for working dogs. Burrs reduce the value of wool and make shearing hazardous. They can also penetrate hides lowering their value (to say nothing of the discomfort caused to the unfortunate animal).

CONTROL METHODS

According to NSW DPI’s excellent booklet “Noxious and Environmental Weed Control Handbook 4th Edition”, treatments for spiny burrgrass include

Non-Chemical Options: A strong competitive summer pasture will assist with effective control. Ensure equipment hygiene is used to prevent seed dispersal. Also quarantine the infestation.

Chemical options:

Chemical and concentration

Rate: Spot/Boom

Comments

Glyphosate 360 g/L
Various trade names

500-700 mL in 100L of water
2.0-3.0 L per hectare

High volume spot spray.
Boom spray rate.
Actively growing plants before seeding. Non-selective. Application in non-crop areas and roadsides.

MSMA ester 800 g/L
Various trade names

1.0 L in 100 L of water

Spot spray application. Do not cut or graze affected area for 5 weeks.

IMPORTANT:  USE OF PESTICIDES – ALWAYS READ THE LABEL

Pesticides must only be used for the purpose for which they are registered and must not be used in any other situation or in any manner contrary to the directions on the label.  Never use a herbicide in any way contrary to the label recommendations.

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DISCLAIMER:   The information contained in this web site is based on knowledge and understanding at the time of writing. However, because of advances in knowledge, users are reminded of the need to ensure that information upon which they rely is up to date and to check currency of the information with the appropriate officer of North West Weeds or the user’s independent adviser.
LRT 14/06/2010

Send mail to northwestweeds@aapt.net.au with questions or comments about this web site.
Copyright © 2007-2013 Last modified: 23-Feb-2012 - North West Weeds