D50 is a selective herbicide recommended for use on ragworth, dandolines, buttercups and thistles in established grassland. D50 can also be used for general weed control in lawns. This chemical is best utilised when used during the period of maximum growth, usually when the flower buds are beginning to form. D50 should not be used on Ragworth after the month of April. For lawn applications D50 is a very good all round product that can be used right throughout the growing season. This is not a clover safe product. Apply to grassland 14 days before grazing or until ragworth is dead and 21 days before cutting hay or silage. Pack size 1&10l (rates vary).