Dog Flea & Tick Collars

A boy outside with a dog. A man is on one knee in the background.

Gifts they will love and savings they will love

Earn Points on every purchase at Tractor Supply

Seresto Vet-Recommended Flea and Tick Treatment/Prevention Collar for Large Dogs Over 18 lb., 8 Months Protection

Shipping Restriction

Availability

MostViewed

TopSellers

MAPPPrice

Is Pick Up Allowed

Coremetrics ItemSales

Shipping Rates

Autoship eligible

Default Subscription Frequency

Is Standard Delivery Eligible

Is Same Day Delivery Eligible

Is Online or Standard Eligible

Shipping Lead Time

TSC Subscription Pickup Eligible

BOPIS Substitution Eligibility

BODFS Parcel Eligibility

Pet Breed Size

Months Supply

PartNumber

Give your dog long-lasting protection against fleas and ticks with a Seresto Large Dog Vet-Recommended Flea and Tick Treatment and Prevention Collar for Dogs Over 18 lb. Unlike other flea and tick protection, Seresto Large Dog flea and tick collars kill and repel fleas for eight continuous months. Seresto Large Dog flea and tick collars are recommended by veterinarians, stocked by 8,000 vet clinics and have been trusted by pet owners for nearly a decade. Seresto Large Dog collars make your dog's comfort a priority by killing on contact, so pests don't have to bite your dog to die. Existing fleas die within 24 hours of application while reinfesting fleas are killed within just two hours, before they lay eggs, preventing further flea infestation. Re-infesting ticks die in as few as six hours, and tick infestations are eliminated within 48 hours of the initial application. Seresto Large Dog collars protect against common pests like deer ticks, American dog ticks, brown dog ticks and Lone Star ticks; they're also effective against chewing lice and aid in the treatment and control of Sarcoptic mange. Fleas and ticks not only cause discomfort; they can also transmit bartonellosis, tapeworms or Lyme disease. Check the product label for information on potential side effects. Seresto Large Dog collars are for dogs at least 7 weeks old, and there's no prescription needed. They're odorless, non-greasy and water resistant to swimming, exposure to rain or sunlight, bathing and shampoo treatment. Seresto Large Dog is a trademark of Elanco or its affiliates. Elanco Animal Health, data on file. Seresto Large Dog is water-resistant and remains effective following a shampoo treatment, swimming or after exposure to rain or sunlight. Under normal conditions, effectiveness lasts for 8 months. In order to maintain an eight-month duration, dogs must not be bathed more than once per month. For dogs that swim once a month or more, the control duration is reduced to 5 months for flea control and reduced to 7 months for tick control.<ul><li>Vet-recommended, premium flea and tick protection for dogs and puppies without the price tag</li><li>Long-lasting flea collar kills and repels fleas for 8 continuous months</li><li>Seresto is the #1 veterinarian recommended flea and tick collar (based on survey data, 2023)</li><li>Starts working within 24 hours to kill and repel fleas by contact so pests don't have to bite your dog to die</li><li>Hassle-free, non-greasy, easy-to-use flea and tick protection</li><li>Ideal for pets of all life stages, including Small, Medium and Large breeds</li></ul><br><br>Looking for more information on flea and tick control? Check out our flea and tick control buying guide in the product documents section.