A MULTI-SPECIES BIO-ECONOMIC MODEL FOR INTEGRATED WEED MANAGEMENT

Marta Monjardino, David Pannell and Stephen B. Powles

No 125795, 2001 Conference (45th), January 23-25, 2001, Adelaide, Australia from Australian Agricultural and Resource Economics Society

Abstract: A multi-species version of the bio-economic RIM (Resistance and Integrated Management) model has been developed to deal with the complexities involved in the long-term integrated management of annual ryegrass (Lolium rigidum Gaud.) and wild radish (Raphanus raphanistrum L.), which dominate and co-exist in southern Australia. In this paper, we present a review of the existing options on how to model multi-species competition in order to select the best approach for incorporation in the RIM framework. Furthermore, we show how we have extended the original single-species ryegrass RIM model to include other aspects of the wild radish biology as well as a set of extra weed management practices used to control this weed species. We also demonstrate how the Multi-species RIM model can be used to evaluate weed management scenarios of co-existing herbicide resistant species. This is done through investigating the implications of using Roundup Ready® canola in the system.

Keywords: Crop; Production/Industries (search for similar items in EconPapers)
Pages: 22
Date: 2001-01
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Persistent link: https://EconPapers.repec.org/RePEc:ags:aare01:125795

DOI: 10.22004/ag.econ.125795

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