Soil borne diseases continue to be one of the major constraints to cotton production. This project helps to identify soil biological and physico-chemical elements to quantify disease suppression potential and identify management practices that promote disease suppressive systems. The project is delivering key diagnostics, surveillance, and response capacity for cotton pathology in QLD & NSW, best practice disease management advice that focuses on a farming system that builds disease suppressive soils, and an increased understanding of defensive ability for resistance breeding.