The mesotrione is a brown or light yellow solid with the chemical name 2-(4-methanesulfonyl-2-nitro-benzoyl)cyclohexane-1,3-dione, which is produced by Zeneca The new triketone herbicide developed by the company can be used to control annual broadleaf weeds and some grass weeds before or after the corn field, including Xanthium, ramie, alfalfa, alfalfa, alfalfa and Solanum nigrum. Most of the field important broadleaf weeds such as Trilobata ragweed and young grasshoppers, such as young crickets, crabgrass, foxtail, arm-shaped grasses, etc.