The weed attacks in various crops which cause both qualitative and quantitative losses in its entire life cycle of crop growth. Economically weeds are more harmful than insects, fungi or other crop pests. Preventing the introduction and sprade of new weed species is important to avoid additional cost and more intensive management for future The principle involved in enacting quarantine is exclusion of weed seeds from entering into an area where it is not present in order to avoid spread of the weed seeds. Quarantine principles are employed to restrict the movement of weed seeds from contaminated grains ,seeds, plants and plant materials including soil and growing media into a state or country.