Farmers are invited to a half-day herbicide resistance workshop on next Friday (August 1) at Mulwala, hosted by a local farming systems organisation.
Agronomo's Andrew Storrie will present at the workshop that will help to address herbicide resistance being major issue in cropping systems.
"Resistant weed populations (are) now found throughout all cropping areas of Australia.
“But what should really concern growers is the development of weed populations with resistance to multiple herbicide modes of action.”
There are 36 weed species in Australia that have developed resistance to one or more herbicide modes-of-action (MOAs), Mr Storrie said.
"Many annual ryegrass populations are resistant to virtually all Group A and B herbicides and in South Australia’s south east there are populations resistant to both glyphosate and paraquat.”
While herbicide resistance has been known about in Australia for nearly 30 years, many growers continue to rely solely on herbicides to control weeds, he said.
"We need to improve our focus on seedbank management techniques, because this really is the key to managing resistance," Mr Storrie said.
Seedbank management will be a major focus of the Riverine Plains workshop. The workshop will also provide participants with a clear understanding of how herbicide resistance develops and show how a range of weed management tactics can be used to address resistance in cropping systems.
John Broster from Charles Sturt University and Peter McInerney from 3-D Ag will also share their experience at the workshop, which is to be held at Yarrawonga Mulwala Golf Club Resort.
For more information, visit http://riverineplains.com.au/
