Spectracide Weed & Grass Killer with the AccuShot Continuous Power Sprayer is a non-selective weed and grass killer that kills weeds and grasses. It's formulated for spot treatment of weeds and grasses on patios, walkways around flowers, shrubs and more. Rainfall or watering after 15 minutes won't wash away effectiveness. Plant new flowers, trees and shrubs in the treated area after just 1 day. For best results, apply this ready-to-use spray during warm, sunny weather when the temperature is over 60 degrees. Completely cover the leaves of the target vegetation. Protect desirable plants with a piece of plastic or cardboard. If desirable plants are accidentally sprayed, wash with water immediately. Do not mow, cut or otherwise disturb treated vegetation for at least 7 days following application. Do not use on or around edible feed or food crops.