Integrated Weed Management Manual
Published: 12 Dec 2019
Arguably one of the toughest challenges currently facing Australian grain growers is the management of weeds.
The issue costs the industry an estimated $3.3 billion every year or $146/ha in control costs and lost revenue making the battle to overcome weeds a major priority for both growers and researchers.
Since 2002/03 the Grains Research and Development Corporation (GRDC) has invested more than $115 million in weeds research with additional funding committed until 2022.
Working together the grains industry has made significant advancements in weed management during the past 20 years, such as the evolution of harvest weed seed control and the prevalence of the double-knock control strategies, but the impact of weeds will continue to be problematic without an
Transforming research outcomes into on-farm management strategies, like the revised and updated Integrated Weed Management (IWM) manual, is designed to guide and support growers and advisers in tackling this major constraint to farm business profitability.
The manual provides information on the latest tools and techniques to help manage current weeds and weeds of emerging economic importance, and at the same time maintain our arsenal of herbicide modesof-action into the future.
Link to this publication
Use https://grdc.com.au/IWMM to ensure your link remains current and up-to-date!
Table of contents
- Introduction (PDF 5.1 MB) This section includes: Contents, Foreword, Introduction and Manual outline. The manual is divided into seven sections, to assist the reader make the development of an integrated weed management (IWM) plan a simple process.
- Section 1: Economic benefits of adopting integrated weed management (PDF 4.9 MB) Outlines the economic benefits of IWM in Australian cropping systems using computer model simulations.
- Section 2: Herbicide resistance (PDF 5.3 MB) Section 2 seeks to clarify aspects of herbicide resistance in weed populations. It is crucial to understand the basics of herbicide resistance when managing weed populations that are resistant to one or more herbicide groups, or are at risk of becoming resistant.
- Section 3: Agronomy to enhance the implementation and benefits of weed management tactics (PDF 5.4 MB) Discusses a range of agronomic practices that can be used to enhance the results of the specific weed management tactics employed. Section 3 includes many simple and cost-effective management changes that can be made to improve the competitive ability of a crop.
- Section 4: Tactics for managing weed populations (PDF 8.8 MB) Provides detailed information on available weed management tactics and presents trial results from across Australia. The tactics, sorted by tactic group, are addressed individually. Where a tactic can fall into two tactic groups because it impacts on two stages of the weed’s life cycle, it has been grouped according to its major aim.
- Section 5: Implementing an IWM program using tactics groups (PDF 5.2 MB) The ‘doing’ part of the manual, outlining how best to assess the on-farm situation and implement the IWM plan on-farm. The information that should be collected for each paddock is listed, so that an effective weed management plan can be prepared.
- Section 6: Profiles of common weeds of cropping (PDF 8.1 MB) Section 6 details the characteristics of 23 key weeds of annual cropping across Australia. Information includes basic identification, distribution and traits that make the weed a significant problem in cropping systems. For each weed there is a recommendation of the most suited weed management tactics for control.
- Section 7: Case studies (PDF 6.6 MB) Section 7 includes a number of grower case studies collected from across Australia. These are an invaluable resource highlighting how growers are actually implementing IWM. These case studies look at what caused and helped them change, successes and the challenges of integrated weed management.
- updated-dec-2019-integrated-weed-management-manual (PDF 6.1 MB)
ISBN: 978-1-921779-61-9 (print)
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