Skeleton weed - Herbicide control

Page last updated: Wednesday, 14 November 2018 - 11:32am

Please note: This content may be out of date and is currently under review.

Control methods for skeleton weed (Chondrilla juncea) a declared pest in Western Australia.

Report the presence of this pest before undertaking control

Information about this pest can be found on the skeleton weed: declared pest page and the skeleton weed in Western Australia page.

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Chemical requirements

When using any agricultural chemicals please ensure that you always follow instructions on the label and any permit. Users of agricultural chemical products must always strictly comply with the directions on the label and the conditions of any permit. To view permits or product labels go to the Australian Pesticides and Veterinary Medicines Authority website.

Chemical control options

Chemical control options can be found below. For other methods of control please refer to the skeleton weed control program n Western Australia.

Control in wheat

Herbicide and crop stage

Rate of product/ha

Pre-seeding

Spray.Seed® 250

1L to 2L

In Crop: Early post emergence (four leaf stage to early tillering)

clopyralid (300g/L or 750g/kg)
+ metsulfuron methyl (600g/kg)
+ MCPA amine (500g/L)

300mL or 120g (for 300g/L or 750g/kg)
+ 3g
+ 500mL

Late post emergence

clopyralid (300g/L or 750g/kg)
+ MCPA amine/ester (500g/L)

500mL or 200g (for 300g/L or 750g/kg)
+ 1L

 

Control in barley

Herbicide and crop stage

Rate of product/ha

Pre-seeding

Spray.Seed® 250

1L to 2L

In Crop: Early post emergence (four leaf stage to early tillering)

clopyralid (300g/L or 750g/kg)
+ metsulfuron methyl (600g/kg)
+ MCPA amine (500g/L)

300mL or 120g (for 300g/L or 750g/kg)
+ 3g

+ 500mL

Late post emergence

clopyralid (300g/L or 750g/kg)
+ MCPA amine/ester (500g/L)

500mL or 200g (for 300g/L or 750g/kg)
+ 1L

 

Control in oats

Herbicide and crop stage

Rate of product/ha

Pre-seeding

Spray.Seed® 250

1L to 2L

In Crop: Early post emergence (four leaf stage to early tillering)

clopyralid (300g/L or 750g/kg)
+ MCPA amine (500g/L)

300mL or 120g (for 300g/L or 750g/kg)
+ 500mL

Late post emergence

clopyralid (300g/L or 750g/kg)
+ MCPA amine/ester (500g/L)

500mL or 200g (for 300g/L or 750g/kg)
+ 1L

 

Control in canola

Herbicide

Rate of product/ha

Pre-seeding

Spray.Seed® 250

1L to 2L

In Crop: Early post emergence (two to eight leaves)

clopyralid (300 g/L)

300 mL

 

Control in lupins

Herbicide and crop stage

Rate of product/ha

Pre-seeding

glyphosate (various formulations)
or

Use rate recommended for other crop weeds

Spray.Seed® 250

1L to 2L

In Crop: Early post emergence (two to six leaves and plants 4 to 10cm tall)

Brodal® (500g/L diflufenican)

200mL

 

Control in pasture

Herbicide

Rate of product/ha

Winter - early treatment (clover at least 3 leaf stage)

Tigrex® or Giant® (420g/L MCPA + 25g/L diflufenican)
or

1L

Brodal® (500g/L diflufenican)

200mL

Winter - late treatment (clover with more than 6 leaves and skeleton weed still as rosettes) - will damage clovers.
2,4-D amine (500g/L) 1.8L
Permanent (i.e. light land no cropping)

clopyralid (300g/L or 750g/kg)
+ MCPA amine (500g/L)

300mL or 120g (for 300g/L or 750g/kg)
+1L

Summer (for prevention of seed set in all crops  & pasture)

Spray.Seed® 250
or

1L to 2L

glyphosate (450g/L)
+ 2,4-D ester (800g/L or 600g/L)

0.5L to 1.5L
+ 0.5L/ha or 0.7L/ha (for 800g/L or 600g/L)

 

Contact information

Pest and Disease Information Service (PaDIS)
+61 (0)8 9368 3080