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Abstract
The issue of insecticide resistance to Helicoverpa insects is of increasing concern to the
Australian cotton industry. In this paper we begin to consider this issue using bioeconomic
modelling and analysis. We develop management strategies at the farm level
within an integrated resistance management framework. Because of our emphasis on
resistance, we first discuss an index of resistance risk that can be applied to chemical and
other strategies. After this initial filter is used, the resulting strategies can be evaluated in
a bio-economic framework. The Helicoverpa Armigera and Punctigera Simulation
(HEAPS) model can be used to evaluate the entomological impacts of alternative
strategies for insect control. The method of analysis proposed involves dynamic
optimisation techniques based on predicted stock and flow outcomes from the simulation
and other models.