Doff 24/7 Fast Acting Weedkiller. 1L £6.20 Out of stock SKU: 372 Category: Plant Fertilisers Fast acting weedkiller Kills all green plant parts Convenient ready to use spray bottle Biodegradable Kills most garden weeds including dandelions, plantain, bluegrass, deadnettle, chickweed, thistle, knotgrass Related products Out of Stock Doff. Tomato Feed Concentrate. 2.5L £8.99 Read more Out of Stock DOFF PATH & PATIO WEEDKILLR RTU 1L £5.20 Read more