It is a safe, effective and economical pre-emergent herbicide that controls certain weeds in container-grown woody ornamental shrubs, trees, field-grown ornamental crops and in turf. Control of germinating weed seedlings can be expected for up to 10 weeks after application. It is specifically designed for nurseries and landscaping to control weeds around. Suitable for container-grown ornamental trees and shrubs, contained garden beds and pots & field-grown ornamental plants.