Diquat

• 1962 December: Malmsbury Reservoir Spillway. Pesticides: Amitrole, Diquat, Paraquat
• 1984: Spraydrift damage Merredin (WA). Pesticides: Paraquat, Diquat, 2,4-D, Glyphosate
• 1987 July: Kobyboyn Area (Vic). Pesticides detected: Paraquat, Diquat
• 1964-66: Australian Army Tests Pesticides Innisfail Queensland
• 1984: Spray Drift Merridan Western Australia