#herbicide__weedkiller__weed_killer  a chemical agent that destroys plants or inhibits their growth
  supertype:  chemical  produced by or used in a reaction involving changes in atoms or molecules
  substance:  arsenic
  subtype:  Agent_Orange  a herbicide used in the Vietnam War to defoliate forest areas
  subtype:  paraquat  a poisonous yellow solid used in solution as a herbicide
  subtype:  silvex  a herbicide that is effective in controlling woody plants but is toxic to animals
  subtype:  simazine  a herbicide used to control weeds (especially among crops)

No statement uses or specializes herbicide; click here to add one.