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Annual ryegrass (Lolium rigidum) is one of the most serious and costly weeds of annual winter cropping systems in southern Australia.
This category includes contact herbicides from a range of chemical groups that require uniform spray coverage to be fully effective.
These are post-emergent grass contol herbicides used for annual ryegrass and/or wild oat control in wheat and barley or non-selective grass control in broadleaf crops.