The Insecticide Resistance Management Strategy (IRMS) for cotton is designed to manage insecticide use, maintain the susceptibility of pest species to insecticides and to manage resistance where it already exists so that it does not become worse (Johnson and Farrell 2003). One pest, the two-spotted spider mite is renowned for rapidly developing resistance to insecticides worldwide. In order to prevent this happening in cotton a mite-specific component has been developed in the IRMS. This strategy is based around two core principles (1) use limitations, to a maximum of two applications of any pesticide group, and (2) rotation, ie. non-consecutive use of the same chemical. Monitoring is an integral part of the effective management of resistance in T. urticae in Australian cotton. Results of annual monitoring have chronicled the demise of the organophosphates and anticipated the need for newer chemistry (Herron et al. 1998; Herron et al. 2001). Here we present monitoring data for seasons 2001-2002 and 2002- 2003 and discuss implications for future resistance management of mites.