Weed Weapon Preventer 20kgWeed Weapon Preventer is used as a barrier to prevent weed emergence. Benefits and Features: Will not harm plants and ornamental trees. Ideal for use in raised gardens, amenity gardens, potted plants around shrubs and trees, chip bark areas and hard surfaces such as asphalt, cobbled paving, gravel and concrete. Controls common weeds, including hard to kill bulbous weeds, prior to emergence. Suppresses weeds for long term control, up to 3 months. 20kg