Derived from Iron, Captain Jack's Lawnweed Brew offers selective control of weeds, disease, moss, algae, and lichens in lawns. The active ingredient is derived from iron, which occurs in nature. Kills many common weeds like dandelion, clover, moss, narrow-leaved plantain, chickweed, and thistle. Works quickly, as dying weeds will be seen within hours of application.

• Controls Weeds & Disease: To control dandelion, moss, algae, lichens, chickweed, oxalis, clover, ground ivy and more. It also suppresses diseases such as dollar spot, rust, snow mold plus many more. 
• Effective: Kills weeds down to the root
• Quick Results: Injury to weeds can be noticed within hours of application. Treated weeds, moss or algae will turn brown or black. 
• Safe For Grass: Designed to kill a variety of weeds and diseases, not lawn grasses. When used as directed it kills a variety of weeds in lawns, roots and all. 
• Derived From Iron: Specifically formulated with Iron (Fe) to control broadleaf weeds
  active ingredient of Weed Beater Fe is derived from iron. Iron is an essential nutrient to the development and growth of plants. 
• Ready To Use: This product is conveniently ready to use when it arrives. Apply directly from the container which is fitted with a trigger sprayer.
• Safe Alternative: People and pets can enter the treated area when spray dries