The work proposed in this project will: (a) Use the capacity of the model to integrate responses of cotton to Insect damage and to varying environmental conditions to yield improved tools for pest management that can account for compensation. This will also result in a capacity to assess the likely extent and value of compensation under different conditions. (b) Make the model applicable to a wider section of the cotton industry by incorporating the capacity to deal with skip row cotton and with short and long season cotton cultivars. These are two key limitations noted by grower groups currently using the Ozcot model in decision support. (c) Put the model into a simulation environment in which it can be readily applied to production decisions and which will enhance both model development and the ability of other researchers to work with the model; thus increasing its availability to industry