When is it optimal to eradicate a weed invasion?

Title
When is it optimal to eradicate a weed invasion?
Publication Date
2004
Author(s)
Cacho, Oscar Jose
( author )
OrcID: https://orcid.org/0000-0002-1542-4442
Email: ocacho@une.edu.au
UNE Id une-id:ocacho
Editor
Editor(s): BM Sindel and SB Johnson
Type of document
Conference Publication
Language
en
Entity Type
Publication
Publisher
Weed Society of New South Wales
Place of publication
Wahroonga, Australia
UNE publication id
une:11745
Abstract
When a weed invasion is discovered a decision has to be made as to whether to attempt to eradicate it, contain it or do nothing. Ideally, these decisions should be based on a complete benefit-cost analysis, but this is often not possible. Partial analysis, combining knowledge of the demographics of the weed and economic techniques, can assist in making the best decision. This paper presents a general conceptual model to decide when eradication of a weed should be attempted. Decision rules are derived based on a few parameters that represent the rate of spread, the cost of controlling the invasion, and the cost of damage caused by the invasion. These decision rules are then used to identify the 'switching point' - the invasion size at which it is no longer optimal to attempt eradication. The decision rules are used to estimate the optimal duration of the eradication effort depending on the current size of the invasion. Sensitivity analysis is undertaken and the possibility of characterising an invasion based on five parameters is discussed.
Link
Citation
14th Australian Weeds Conference Papers and Proceedings: Weed Management - Balancing People, Planet, Profit, p. 49-54
ISBN
0975248804
0975248812
Start page
49
End page
54

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