Fungicide resistance occurs when over-exposure causes a disease to lose sensitivity to fungicides. This guide explains what fungicide resistance is and details the status, causes, risk factors and management of fungicide resistance in Australia. In this video, hear from CCDM researchers Nola D’Souza and Fran Lopez‑Ruiz as they introduce a new national resource, Fungicide resistance management in Australian grain crops. The guide explains what fungicide resistance is, how it develops, the current resistance status in Australia, key risk factors, and practical strategies to help extend the effective life of fungicides. Developed by the Australian Fungicide Resistance Extension Network (AFREN), the guide outlines best‑practice resistance management approaches to support sustainable disease control in Australian grain production.