Zero Lawn Liquid 5 LitreZero Lawn Liquid 5 litre suitable for controlling unwanted weeds in lawn areas. Zero Lawn Liquid effective lawn moss killer Fast acting moss control Visual results in 24 hours Easy to mix formula 10: 1 with water Use sprayer for best results but can be applied using a watering can and rose Contains 6% Chelated Ferrous Citrate without harmful chemicals. 2. 5 Litre Pack Treats 1000 sq metres (1 4 Acre) 5 Litre Pack Treats 2000 sq metres (1 2 Acre) 10