What is the difference between a ‘Contact’ and a ‘Systemic’ weedkiller? | Love The Garden

What is the difference between a ‘Contact’ and a ‘Systemic’ weedkiller?

What is the difference between a ‘Contact’ and a ‘Systemic’ weedkiller?

Asked 1 year 11 months ago by content-publishing

Contact weedkillers (such as Weedol Gun Fast Acting Weedkiller) kill green plant growth above ground on contact; they are fast acting and need a couple of hours of dry weather to be absorbed. Whilst they may work fast, they do not penetrate down to the roots, so further treatments may be required to prevent re-growth of perennial weeds. Systemic weedkillers (such as Fast Action Roundup Ready to Use Weedkiller and Weedol Rootkill Plus) are absorbed into the weed through the leaves and kill the whole plant, including the roots.

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