Dr. Earth Final Stop Weed & Grass Killer Herbicide is a safe alternative to synthetic sprays. OMRI listed for organic use, it is a non-selective weed & grass killer that can be used up to the day of harvest because it is made from the highest quality organics and contains no glyphosate or synthetic ingredients. It kills and controls undesired weeds close to and between food crops as well as throughout your entire garden including crabgrass, foxtail and broadleaf weeds. Dr. Earth Final Stop Weed & Grass Killer goes to work immediately and death generally occurs minutes to hours after application.