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Meaningful analysis for economic weed management is currently limited by lack of understanding of weed population and spatial dynamics and problematic communication between weed scientists and â€¦ Economic barriers to effective weed control in australia are multifaceted, encompassing the challenges of early intervention, diminishing returns on investment, the ongoing costs of management, and the â€¦ The study found that $50 million is spent annually to control the eleven weeds in group 1 and that the nine weeds in group 2 threaten over one thousand special conservation areas.

An effective decision model should take economics as well as biological factors into account, viz. Nature of weed populations existing in the field, expected crop yield loss due to weed interference and â€¦