New pulse herbicide in field of its own - Elders Rural Services

New pulse herbicide in field of its own

The opportunity for winter grain growers to control problem grass weeds and mitigate herbicide resistance in the pulse phase of cropping programs, as well as increase pulse returns has been given a boost.

ADAMA Australia has announced the introduction of a pre-emergent herbicide with a new mode of action (Group E) for 2021. Ultro® controls annual ryegrass as well as barley grass and brome grass in pulse crops, the latter of which have become more difficult to control in various areas due to the limited herbicide options available against these grass weeds.

The new herbicide is registered for use with faba beans, lentils, field peas, chickpeas, lupins, vetch and broad beans, and can also be used with winter fallows.

ADAMA Australia General Manager Marketing, Stuart Moncrieff, said pulse crops were an important component of cropping rotations.

“Pulses not only offer a vital disease break, but, with advances in plant breeding, agronomy and weed control strategies, they are also now proving to be a profitable component of rotations,” Stuart said.

“Weed control in pulses has historically been a challenge due to the poor crop competition and lack of registered herbicide options available to growers and advisers.

“As a Group E mode of action pre-emergent herbicide, Ultro introduces an alternative herbicide tool for annual grass weed control, helping reduce the pressure on commonly-used options in grain legumes, such as trifluralin and propyzamide.’’

Ultro has been trialled throughout Australia’s winter cropping regions since 2013.

“Trials have been conducted in a wide range of soil moisture and rainfall situations across a range of soil textures and we have been extremely happy with the results and versatility of Ultro,’’ said Market Development Manager with ADAMA Australia in Victoria and Tasmania, Alistair Crawford.

“Soil moisture is critical to activating pre-emergent herbicides and commencing weed control. Ultro requires less rainfall and soil moisture to activate than some industry standards, which is why we have seen strong results when conditions can be less-than-ideal at planting.’’

Untreated control plot annual ryegrass in lentils ADAMA Australia Solutions Site Roseworthy SA 2020


Ultro applied IBS at 1.7kg/ha in lentils controlling annual ryegrass, ADAMA Australia Solutions Site, Roseworthy SA 2020


For further information on the new Ultro pre-emergent herbicide, growers and advisers can contact their local ADAMA Australia representative or nearest reseller.

Article written by ADAMA for the Autumn 2021 edition of Seasons Magazine.

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