DECIMATE weed & grass killer is a non-selective herbicide that kills weeds and grass plus some woody plants. It’s a contact, semi-translocating herbicide that inhibits glutamine synthetase. It works in 24 to 72 hours. Works best in temperatures over 85 deg. Rainfast in 1/2-4hrs. May be reseeded or replanted after spray has dried. Mix 2oz per gallon per 1,000 sq ft.