Dogs pick up ticks at roughly ten times the rate humans do. They walk through brush, roll in leaf litter, and stick their noses into exactly the places ticks wait. If you hike with your dog in Maine, tick prevention is not optional. A single embedded nymph can transmit Lyme disease in under 36 hours, and your dog will not tell you it happened. Here is how to keep your dog safe before, during, and after every hike.
If you are new to tick country, start with our full guide to avoiding ticks while hiking in Maine and the 2026 tick season update for current conditions. This post focuses specifically on protecting dogs.
Why Dogs Are at Higher Risk
Dogs are built to collect ticks. They are lower to the ground, walking right through the questing zone where ticks sit on grass tips and low brush with their front legs outstretched. Their fur catches and hides ticks that a human would spot on bare skin. And unlike you, your dog is not going to stay on trail center. They push into brush, nose through ferns, and investigate every interesting thing at ground level.
Dogs in Maine can contract Lyme disease, anaplasmosis, and ehrlichiosis from tick bites. Lyme is the most common and the most serious. Canine Lyme disease can cause joint pain, lethargy, and fever, but the real danger is kidney involvement.
Untreated Lyme disease in dogs can progress to Lyme nephritis, a form of kidney failure that is often fatal. If your dog hikes regularly in Maine, annual tick-borne disease screening and consistent prevention are not optional. Talk to your vet.
Thick-coated breeds like Bernese Mountain Dogs, Golden Retrievers, and Newfoundlands are especially hard to check. A deer tick nymph the size of a poppy seed can attach deep in a double coat and feed for days without you noticing.
Before the Hike: Prevention
The most important tick protection for your dog happens before you leave the house. A multi-layer approach works best.
Talk to your vet about tick prevention medication. Oral options like Simparica Trio, NexGard, and Bravecto kill ticks after they bite but before they can transmit disease. Topical treatments like Frontline Plus repel and kill on contact. Your vet can recommend the best option based on your dog’s health, size, and how often they are outdoors. For dogs that hike frequently in Maine, year-round prevention is worth discussing since ticks are active on warm days even in winter.
Consider the Lyme vaccine. Most vets in high-risk areas like Maine recommend the canine Lyme vaccine for dogs that spend significant time outdoors. It is not 100% effective, which is why tick prevention medication is still needed alongside it. But it adds a meaningful layer of protection.
Permethrin-treated gear is highly effective for dogs. Spray a bandana with permethrin, let it dry completely, and put it on your dog before hitting the trail. Ticks that contact the treated fabric die on contact. You can also treat a dog vest or harness cover.
Permethrin is safe for dogs but extremely toxic to cats. Even small amounts can cause seizures and death in cats. If you have cats at home, keep permethrin-treated dog gear completely separated. Do not let cats contact treated bandanas, collars, harnesses, or bedding. Store treated items in a sealed bag away from areas cats can access.
Treat clothing once, repels weeks
On the Trail
Where you hike and how you manage your dog on the trail makes a big difference in tick exposure.
Keep your dog on leash. Off-leash dogs wander into the exact habitat ticks prefer: tall grass at trail edges, dense brush, leaf litter under shrubs. A leashed dog stays on or near the trail where tick density is lower. This also keeps your dog from rolling in the prime tick zones that line most Maine trails.
Do quick checks at rest stops. Every time you pause for water or a snack, run your hands over your dog’s legs, belly, chest, and ears. You will not catch everything, but you will catch the ticks that have not yet attached.
Choose trails wisely during peak tick season. Exposed ridge trails and well-maintained wide paths have fewer ticks than brushy, wooded lowland trails. Some of the best dog-friendly options with lower tick risk include Mount Battie with its open summit ridge, Bradbury Mountain with its wide, well-maintained paths, and Mount Agamenticus where the upper trails are exposed enough to reduce tick encounters. Coastal and beach walks are generally tick-free.
For more dog-friendly trail options, see our full dog-friendly hikes guide.
Avoid trails with tall grass encroaching on both sides of the path during May through July. That is nymph season, and those narrow, overgrown sections are where your dog picks up the most ticks. If the trail is not well-maintained, pick a different one until late summer.
After the Hike: The Dog Tick Check
The post-hike tick check is where you catch what prevention missed. Do it thoroughly, every single time.
Post-Hike Dog Tick Check
- Run fingers through coat systematically, head to tail
- Check inside and behind both ears
- Check under the collar and harness
- Feel armpits and groin area
- Inspect between every toe
- Check around the tail base and under the tail
- Use a fine-tooth flea comb on thick-coated dogs
- Check yourself too, ticks transfer from dog to human
If you find an attached tick, remove it with fine-tipped tweezers or a tick key. Grasp the tick as close to the skin as possible and pull straight up with steady pressure. Do not twist, squeeze the body, or try to burn it off. Clean the bite area with antiseptic.
Quick, clean tick removal
Do the full tick check BEFORE getting back in the car. Ticks that fall off your dog in the car end up on your seats, floor mats, and eventually on you. A parking lot tick check takes five minutes and saves you from finding a deer tick on your pillow later.
Signs of Tick-Borne Illness in Dogs
Even with good prevention, bites happen. Know what to watch for in the days and weeks after hiking.
Limping or shifting lameness is the most common sign of canine Lyme disease. Your dog may favor one leg, then seem fine, then start limping on a different leg. This shifting pattern is characteristic of Lyme.
Fever, lethargy, and loss of appetite can show up together. If your normally energetic hiking dog suddenly has no interest in walks or food, especially after recent time on the trail, tick-borne illness should be on your radar.
Swollen lymph nodes or joints are another red flag, particularly in the legs.
These symptoms can appear two to five weeks after the tick bite, long after you have forgotten about that hike. If you notice any of these signs after spending time in tick country, see your vet and mention the tick exposure.
Many vets in Maine offer an annual 4Dx test that screens for Lyme, anaplasmosis, ehrlichiosis, and heartworm all at once. For dogs that hike regularly, this annual screening catches infections early, sometimes before symptoms appear. Ask your vet about adding it to your dog’s yearly checkup.
For more on tick identification, safe removal, and when to see a doctor about your own bites, see our complete tick prevention guide and the tick and bug protection gear guide.
Can dogs get Lyme disease in Maine?
Yes, and Maine is one of the highest-risk states in the country. Dogs can develop joint pain, kidney problems, and fever from Lyme disease. The canine Lyme vaccine and monthly tick prevention medication are strongly recommended for any dog that spends time outdoors in Maine.
Is permethrin safe for dogs?
Yes, permethrin is safe for dogs and very effective against ticks. You can spray it on bandanas, harness covers, and other dog gear. However, permethrin is extremely toxic to cats. Never use permethrin products on or near cats, and keep treated dog gear separated if you have cats at home.
How often should I check my dog for ticks?
At every rest stop during the hike and thoroughly after every hike. During tick season, which runs roughly April through November in Maine, do a daily tick check even on days you did not hike. Ticks can be picked up in your yard, at the park, or anywhere with grass and brush.
Should my dog get the Lyme vaccine?
Talk to your vet. Most veterinarians in high-risk areas like Maine recommend the Lyme vaccine for dogs that spend time outdoors regularly. The vaccine is not 100% effective, so tick prevention medication is still needed alongside it. Together they provide strong protection.
What trails are lowest risk for dog ticks?
Exposed ridgelines, coastal trails, and well-maintained wide paths have fewer ticks than brushy, wooded trails. Beach walks are generally tick-free. In Maine, trails like Mount Battie, Bradbury Mountain, and the open sections of Mount Agamenticus tend to have lower tick density than lowland forest trails with dense undergrowth.