The only group 14 pre-harvest option for annual ryegrass seed set reduction in wheat, Terrad’or offers unrivalled performance on key problem weeds.

New registration for pre-harvest

  • Target annual ryegrass. A new tool to reduce weed pressure, with proven seed set reduction.
  • Weed seed set reduction. Activity on key broadleaf weeds, including Wild Radish and Sowthistle.
Learn more about Terrad’or including its use rates, compatibility and efficacy

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Australia's number one spike herbicide

Discover why Terrad’or is Australia’s number one spike herbicide.

Faster & better results

Get quick brownout and effective control of broadleaf and grass weeds.

One of the key weeds Group 14 chemistry is selected to assist control of is marshmallow. It is a particularly difficult weed control especially when well established or when under stress. This photo shows a trial result from the Darling Downs, demonstrating the efficacy benefit of Terrad’or and CanDo on large marshmallow.

True grass activity

Spray and stay on your target with the right sized droplets for better control and less drift.

With glyphosate resistance becoming a wider problem especially with some key weeds such as Annual Ryegrass, herbicides with alternative modes of action should be considered. Group 14 actives with grass activity could be useful to help in the management of resistant weeds, if used wisely. There are no recorded cases of weeds resistant to Group 14 herbicides in Australia.

Deliver a deadly double knock

The perfect mix partner for either paraquat or glyphosate.

The double knock is the optimal strategy in the battle against glyphosate resistance in annual ryegrass. Adding Terrad’or at 40g in either the first or second pass, significantly improves ryegrass control compared to the traditional double knock. Terrad’or added to paraquat in the second knock consistently achieves the highest levels of control.

Sow with confidence

Thanks to low residual activity and short plantbacks to key crops.

“The challenge with other competitor Group 14’s is managing that plant back, because at that time of the year it is go, go, go. Growers don’t want to have to worry about plant backs, it’s get it in, get going and get seeding. It’s a key component of the product.” – Kurtis Ward, Agronomist, Farmer Johns.