Farnam Bio Spot Flea and Tick for Dogs 31-60 lbs is an ideal solution for any flea or tick problem. Good for all dogs of this size, Bio Spot breaks the life-cycle of fleas and ticks by killing flea eggs up to 4 months. Repels live fleas, ticks, and mosquitoes for 4 weeks. It even protects against the dangerous deer ticks known to cause Lyme Disease, as well mosquitoes that transmit West Nile Virus.

Kills and repels mosquitoes and includes a natural coat conditioner. Simply apply once topically to your dog's coat, and they'll be protected from fleas, ticks, and mosquitoes for up to 4 full months. Keep your dog safe from unhealthy and uncomfortable fleas and ticks.