Weedol Rootkill Plus Weedkiller Delivery in 5-6 working days £6.49 1L 6 in stock Weedol Rootkill Plus Weedkiller quantity Add to basket Share free delivery on all online orders over £75 Weedkiller which is ideal for all broad-leaved weeds and grass weeds. Kills weeds down to the root so they won't grow back.