Weed Stop is a professional weed killer that can be applied with Evict Bio 360 or Evict Bio 510 where maintaining baregound is desirable. Weed Stop is a long term weed killer and forms a protective barrier in the soil which prevents most new weeds from emerging for up to 9 months after application. It is registered for use in commercial and industrial areas, around agricultural buildings, fencelines and rights of ways as per the directions on the label.