To investigate the SAR response in cotton and to evaluate a range of biotic and abiotic stimuli under both glasshouse and field conditions against Verticillium and Fusarium wilts and Altemaria leaf spot. Glasshouse trials will be used to determine effectiveness, application rates and duration of protection. A series of field trials based on the glasshouse results will be conducted for all three diseases. These are likely to be the Verticillium field trial in the Verticillium wilt nursery at the Cotton Research Institute, Myall Vale, NSW, Alternaria at Bourke, NSW, and Fusarium trial sites to be chose in consultation with the industry.