1 Litre Roundup Optima Plus Concentrate Weedkiller (116967)

• 1 Litre treats 1500 square metres
• New formula concentrate for treating larger areas
• Ideal for paths, patios, drives and flower beds
• Systemic weedkiller that kills from the inside out
• Weeds don't come back
• Degraded in soil by micro organisms
• Contains Glyphosate

TIP: Don't mix more than you need at that time because this will not work after being sat around for a couple of weeks. This is due to the stabilisers and other ingredients evaporating, rendering the watered-down solution useless after a couple of weeks. So don't mix loads of this up and keep it for long periods, as it won't work when you come to use it.