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Short, fast-fact videos that have you covered on Ultro® essentials: mixing, physical & chemical characteristics, sowing system considerations… Ultro®. Get the dirt!


Ultro® at a glance

Strong performance on problem grass weeds
Australian trials confirm Ultro® provides robust control of annual ryegrass, barley grass and brome grass.

Unique mode of action
Ultro® controls grass weeds in winter pulse crops & fallow with a novel MOA (Group E/23), helps manage herbicide resistance.

Registered in all winter pulses and fallow
Registered in broad beans, chickpeas, faba beans, field peas, lentils, lupins & vetch. Ultro® can also be applied in winter fallow.

Flexible application window
Ultro® is non-volatile and can be applied up to 7 days before incorporation by sowing.
The proof is in the paddock
See for yourself in these short videos
Ultro® Australian Trial results
Annual ryegrass
- In Australian trials Ultro® offered equivalent or superior control of annual ryegrass compared to industry standards.
- Ultro® provides consistent control of annual ryegrass for up to 3 months after application. Increasing the application rate of Ultro® also reduced variability of control.
Controlling annual ryegrass on lighter soil textures
Trials in Western Australia and the Victorian Mallee showed more consistent annual ryegrass control than industry standards, when applied at 1.1 kg/ha. Ultro® also provides good weed control under a wide range of soil textures, soil moisture and rainfall situations, compared with industry standards.
Annual ryegrass control 60 days after application
Average 46 trials conducted in Australia, 2014-2021

Controlling annual ryegrass on lighter soil textures: 60 days after application
Average 12 trials conducted in the Victorian Mallee and in Western Australia, 2014-2019

Controlling annual ryegrass on lighter soil textures: 60 days after application
Average 12 trials conducted in the Victorian Mallee and in Western Australia, 2014-2019


^Refer to registered label for maximum application rates by crop type
Brome grass
- Ultro® provided equivalent or superior control of brome grass compared to the industry standard pre-emergent herbicide, propyzamide.
- Higher rates of Ultro® application improved the level of control up to three months after application.
Barley grass
- Ultro® provided equivalent or superior control of barley grass in winter pulses compared to the industry standard.
- Increasing the application rate improved control further.
Ultro® efficacy on brome grass three months afer application compared to the industry standard
Average 15 trials conducted in Australia, 2014-2020

Barley grass panicle reduction
Average 2 trials, 2016
