Tick and heartworm season is almost upon us, and this season promises to be a severe one due to the early warm weather. The most common tick seen in Colorado are the Dermacentor species. These ticks can be found in grassy meadows, young forests, and also along roadways and trails. Their life cycle is from larva to nymph to adult, and each life stage has a different host. The hosts of the larva include voles, mice, and other small mammals, the hosts of the nymphs include cats, dogs, opossums, rabbits, and raccoons, and the hosts of the adults include cats, coyotes, dogs, cattle, horses, raccoons, and humans. Dermacentor ticks can transmit Cytauxzoon felis, a blood parasite of cats, Rocky Mountain spotted fever, tick paralysis, and Tularemia.
It is important that pets that often outdoors, hunt, or hike be protected from ticks and heartworm. For more information on heartworm, please read our previous post here. There are many products on the market that help protect against fleas and ticks. This chart (Flea Tick and Heartworm Prevention Comparison Chart) highlights just some of the products that can be used. (Thank you to Dr. Lauren Kloer for the chart!) Of course, please contact your veterinarian for which product might be the best for your pet. Please write in with any questions!