Embargo Herbicide is a pre-emergent product that can be used as an effective tool to help control annual weeds. Embargo is a member of the Dinitroaniline (DNA) family of herbicides. Embargo inhibits the steps in plant cell division responsible for chromosome separation and cell wall formation, therefore stopping root growth. After application roots are relatively few in number and club shaped and cannot eectively absorb the water and nutrients required for root and plant development. Embargo does not translocate through the roots into the stem and leaves.