This project was initiated under the name "CS66L - SIRATAC Plus configuration and testing". However, the Siratac Plus project proved a failure and all development was abandoned in 1990. These developments were reported in progress reports for Project CS66L in 1990/91. At that time it was decided that the future for computer based pest management for the cotton industry was in standalone microcomputer packages. Consequently staff empolyed in design of the water balance model (A.T. Wells) and testing of SIRATAC Plus (S. Griffin) were re-deployed to the construction and testing of hydroLOGIC; a 3rd generation decision support system (DSS) for irrigation management, further development of the cotton model and to the development of entomoLOGIC, an expert system for pest management. This report covers these developments in detail.