Uncle Steve’s Weed Killer should be applied at a rate of 6.0 to 14 fl. oz./100 sq. ft. when skies are sunny and no rainfall is predicted within 2 to 6 hours of application. Use the higher rate when weeds are dense or foliage is more pronounced. For best results apply Uncle Steve’s Weed Killer when temperatures are 65-90° F and when the winds are calm. Best results are achieved in the spring to early summer when young weeds are growing more actively and on small weeds less than 3-5 inches high. Only contacted vegetation will be affected. For heavy-duty spot spraying, apply to target weeds in a volume that completely soaks the leaves.