Barley weed control set to follow strong gains in wheat
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Date
18 October, 2022
About
Category
- Grower Stories
- Product News
Date
18 October, 2022
Image: Shannon Meyer, Agronomist with Elders at Coorow in Western Australia, and Marchagee grower Wade Parker.
The EPE use pattern in barley was recently approved by the Australian Pesticides and Veterinary Medicines Authority (APVMA), adding to the existing registrations for Mateno Complete, including incorporated by sowing (IBS) in barley and wheat and the wheat EPE registration, while a host of new weed control claims also were added to the label in both crops.
The introduction of Mateno® Complete IBS and EPE in wheat (not durum wheat) and IBS only in barley this season has attracted significant attention, with the Bayer product providing a new herbicide mode of action to the Australian cropping industry, aclonifen (Group 32), in a complementary co-formulation with pyroxasulfone (Group 15) and diflufenican (Group 12) herbicides.
National trials over several years have shown Mateno Complete, which also can be used with disc seeding systems in wheat, provides better weed control and grain yields than existing benchmark herbicides.
IBS application of Mateno Complete in wheat was originally registered for control of annual ryegrass, barley grass, annual phalaris, silver grass and toad rush and suppression of wild oats, great brome and capeweed. The original barley IBS registration included the label claims for annual ryegrass, barley grass, silver grass and toad rush. EPE use in wheat was initially registered for control of small silver grass, toad rush, wild radish, capeweed and prickly lettuce and suppression of annual ryegrass, barley grass and doublegee/spiny emex.
Image: James Heffernan, Agronomist with Nutrien Ag Solutions at Naracoorte in South Australia, and Bayer Crop Science Market Development Agronomist in SA, Tim Murphy, take a closer look at the strong control of annual ryegrass across the complete soil surface, including in the furrow and on the furrow shoulder, from an early post-emergent application of the recently released herbicide, Mateno Complete, in barley at a trial at Kybybolite.
Tim Wilkie, Marketing Lead – Broadacre with Bayer Crop Science, said weed control options in barley traditionally had been limited and, hence, the new powerful, triple mode of action herbicide would be a “game-changer’’ for growers.
“Problem weeds have typically presented significant challenges in the barley phase of crop rotations,’’ Tim said.
“With the added flexibility to apply Mateno Complete in barley at the EPE timing from next season, this will critically provide control of weeds in the furrow and on the furrow shoulder that may have escaped pre-emergent herbicides. This has been a clear benefit for growers with the EPE applications in wheat this year.
“The EPE application in barley will also provide high level control or suppression of broadleaf weeds and will extend the window of activity to control later germinating annual ryegrass – another major benefit that we have seen in wheat this season.’’
He said there would be some key considerations for growers with the EPE timing in barley, however, including not applying Mateno Complete when barley has been sown with disc seeders or where sowing has left an open seed slot, as well as when crops may be under stress due to a range of environmental and/or agronomic factors.
Growers seeking further information on the EPE application of Mateno Complete in barley can contact their local sales agent or Bayer Crop Science Territory Business Manager.
Mateno® is a Registered Trademark of the Bayer Group.


