When using the Hi-Yield Nutsedge and Horsetail Control you would not mow for 2 days before application or 2 days after.
Hi-Yield Nutsedge and Horsetail Control is only labeled to be applied to turf grass. We cannot advise to use it in Ornamental areas.
Hi-Yield Nutsedge and Horsetail Control is best applied in temperatures above 55 and below 85. It is a slow kill so can take up to 6 weeks or so to completely kill.
Per the label: For post-emergent control of Horsetail (Equisetum arvense) apply after Horsetail has leafed out. This product will control Horsetail that is less than 6 inches tall and suppress Horsetail that is greater than 6 inches tall. Herbicide symptoms are likely to show within 2 weeks as a necrotic ring at the base of the plant, even though the leaves and stems remain green and a deep leathery green in color.