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Integrated Weed Management maintains low weed levels for more than a decade, Geraldton port zone

2020

Research organisation
Funding sources
Department of Primary Industries and Regional Development WA
<abbr title='Grains Research and Development Corporation'>GRDC</abbr> <abbr title='Department of Primary Industries and Regional Development (Western Australia)'>DPIRD WA</abbr>

Trial details

Researcher(s) Joel Johnstone
Year(s) 2020
Contributor Department of Primary Industries and Regional Development WA
Trial location(s) Geraldton, WA
Integrated Weed Management maintains low weed levels for more than a decade, Geraldton port zone locations
Aims

To annually monitor long-term focus paddocks in the Geraldton port zone for effectiveness of integrated weed management strategies in controlling herbicide resistant weeds

Key messages
  • Results from a two-decade annual survey continue to show the success of integrated weed management strategies in controlling ryegrass weed numbers in 27 paddocks in the Geraldton port zone.
  • Growers in the study continue to manage herbicide resistance and have reduced weed numbers by over 99% since 2001.
  • Once ryegrass numbers were markedly reduced, farmers including harvest weed seed control (HWSC) in their regime have consistently kept weed numbers close to zero, while those without have experienced more volatility.
Lead research organisation Department of Primary Industries and Regional Development WA
Host research organisation N/A
Trial funding source GRDC DAW00256
Trial funding source DPIRD WA FFPJP13
Related program Regional Research Agronomy
Acknowledgments

Thanks to all the growers for their continuing long-term support for this activity, to Peter Newman for the initial work and for assistance assistance in continuing the monitoring, to Bonnie Jupp and Joel Johnstone for conducting the paddock monitoring.

Thanks to GRDC and DPIRD for co-investment in the ‘Building capacity in crop protection and crop production agronomy research and development in Western Australia’ project (DAW00256/DAW1512-001RTX)
Other trial partners Not specified
Download the trial report to view additional trial information

Trial report and links

Long term integrated weed management maintains low weed numbers for two decades



Trial last modified: 28-11-2024 11:02am AEST