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The primary aim of this technical bulletin by By J.E. Ireson, J.T. Davies, D.A. Friend, R.J. Holloway, W.S. Chatterton, E.I. Van Putten and R.E.C. McFadyen was to provide a revised assessment of the cost of weeds to Tasmanian pastures and field crops as well as identifying the weeds that are having the most significant impact on Tasmanian agriculture. It also reviews the current status of all weed biological control programs that have been conducted in Tasmania against some of the major weeds and provides a case study of the successful biological control program on ragwort. The document should serve as a useful reference for those involved in weed control both within the state and nationally.
This report by by Randall Jones, Garry Griffith and David Vere (NSW DPI) evaluates the economic return on benefit based on seven years of CRC work.
This report by AR Page and KL Lacey (AECgroup) examines the return on investment of the Australian weed biological control (biocontrol) effort.
This economic assessment by Ross McLeod in 2018 estimates weeds to impose an overall average cost of nearly $5 billion across Australia. Overall costs have increased by more than 20% over the 14 years since the Sinden et al (2004) study.
Economic research undertaken by J Sinden, R Jones, S Hester, D Odom, C Kalisch, R James and O Cacho in 2003 established that the annual cost of weeds to Australian agriculture exceeds $3.5 billion, and may be as high as $4.5 billion per year.
This paper by by Randall Jones, Yohannes Alemseged, Richard Medd and David Vere reports on an analysis of the costs of weeds in Australian annual winter cropping systems.