Button grass

Button grass

Button grass can be a pain in the butt!

Button grass (Dactyloctenium radulans) sounds kind of cute, but that’s not always the case! It’s a native species found throughout Australia and is a common summer weed species.
Like most summer grass weeds it depletes soil moisture and nutrients, reducing the yield potential of the subsequent crop. Summer weeds also act as a green bridge for crop pests and disease.

The rapid emergence and growth of button grass after rainfall makes it important for the Australian plague locust.

It can be a valuable pasture species in arid areas, although overgrazing of button grass (green or dry plants) in stockyards can result in nitrate-nitrite toxicity in sheep and cattle.

Further, toxicity from prussic acid can result in the field when hungry stock are exposed to lush growth. However, dry plants are rarely toxic in the field. Button grass is difficult to control, as the stressed, dusty plants are poorly responsive to herbicides.

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Fact Sheet

Changes to herbicide Mode of Action (MoA) names

The global MoA classification system is based on numerical codes which provides infinite capacity to accommodate new herbicide MoA coming to market, unlike the alphabetical codes currently used in Australia.
Farming is becoming increasingly global. Farmers, agronomists and academics around the world are now, more than ever, sharing and accessing information to assist them to grow crops, while managing sustainability issues such as herbicide resistant weeds. It’s important then that the herbicide MoA classification system utilised in Australia be aligned with the global classification system. This will ensure more efficient farming systems into the future and allow Australian farmers and advisors to access the most up-to-date information relating to managing herbicide resistance.
CropLife Australia is working with key herbicide resistance management experts, advisors and the APVMA to ensure farmers and agronomists are aware of the planned changes.
The numerical classification system should be fully implemented by the end of 2024.
You can find further information by reading the factsheet and visiting the CropLife website here.

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You can reduce the risk of glyphosate resistance in weeds if you follow the recommended practices in this factsheet.

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You can reduce the risk of glyphosate resistance in weeds if you follow the recommended practices in this factsheet.

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