An agent, which can be a herbicide, that kills protozoans.

• Acacetin
• Ajoene
• Bisabolol
• Carpaine
• Chrysosplenetin
• Epigallocatechin
• Eremanthin
• Iodine
• Kaempferol
• Myricitrin
• Plumbagin
• Rutin
• Tiliroside