This arable extra discusses trial results from the 2024 herbicide screening trial at Kowhai Farm in Lincoln, Canterbury.
Key Points:
- Herbicide resistance is rising in New Zealand, making it crucial to identify diverse herbicide options with different Modes of Action (MoAs) for key grass weed species.
- A 2024 herbicide screening trial identified the relative efficacy of different herbicides at different rates, on a range of grass and crop species, using a log sprayer.
- Five new or unregistered herbicides were tested, showing varied efficacy against target grass weeds. Some showed potential for specific use, particularly as a strategy against suspected resistance.
- Using the most effective herbicide rate possible within the crop grown reduces the risk of a herbicide-resistant weed population emerging.
Read the full arable extra here.