Remuda 1-Gallon Concentrate Herbicide, a non-selective post-emergence herbicide, is used in unplanted areas, around trees and shrubs, and flowerbeds. It contains 41% glyphosate with surfactant and can be mixed with weed impede for post-emergent kill and pre-emergence control of weeds and grass. Enjoy a beautiful outdoor area with the Monterey Remuda 1-Gallon Concentrated Herbicide. The herbicide is great for use in unplanted areas and around trees, shrubs and flowerbeds, and the 1-gallon concentrate provides up to 128 gallons of ready-to-use herbicide and up to 128,000 square feet of coverage.