New chemistry that's especially effective on over 200 hard to kill weeds, right to the roots. Visible results in just 24 hours. Rain fast once dry. Reseed in just 2 weeks. Ideal cool weather performance down to 45 degrees Non 2, 4-D formula contains MCPA, Mecoprop-p, Dicamba and carfentrazone. | Bonide Weed Beater Ultra | Size 16 oz