Coumaphos is an organophosphate used to control lice, mites, ticks, cattle grubs, and screw-worms on cattle, sheep, pigs, horses, and dogs. Often applied as a topical wash or dip. Effective against a wide range of arthropod pests. Also used in antibacterial wound dressings to treat conditions like maggots in wounds, foot lesions, and surgical wounds.

• Affected animals: Cattle, sheep, pigs, horses, and dogs. 
• Application methods: Typically applied as a topical wash or dip. 
• Mode of action: Works by inhibiting acetylcholinesterase, an enzyme in the nervous system of insects and mites