Connecticut Tick Season 2026 Is Going to Be Bad. Are you ready?

Spring is here, and so are the ticks. If you live in Connecticut, you already know that ticks are a fact of life — but 2026 is shaping up to be a year you really do not want to take chances.

Scientists and researchers are calling this one of the worst tick seasons on record, and the warning signs have been building all winter. Experts have forecasted an early start to tick season this year due to irregular weather patterns that allow the pests to survive, and the Connecticut Agricultural Experiment Station was already receiving ticks for testing as of last month. That is not a good sign for what is ahead.

Why this year is different

Connecticut has always been ground zero for Lyme disease — the disease was literally first identified in Lyme, Connecticut, in 1975. But the conditions driving tick populations right now go well beyond a bad season. Researchers point to climate change as the primary driver behind rising tick populations in the region, with warmer temperatures bringing more ticks to the Northeast and allowing invasive species to establish a presence in the area. 

With a longer warm season, ticks are now emerging earlier in the spring, staying active later into the fall, and becoming active during winter warm spells as well — all of which increases their likelihood of finding hosts and spreading disease. sierraclub-ct The season your grandmother warned you about in June now effectively starts in March.

One in two ticks. Think about that.

Here is the statistic that should make every Connecticut pet owner pay attention. A Dartmouth study published in Parasites and Vectors found that 50% of adult blacklegged ticks in the Northeast carry the bacteria that causes Lyme disease, while up to 25% of younger nymph-stage ticks carry the bacteria as well. Dartmouth

Flip a coin every time your dog walks through the backyard. That is essentially what you are looking at.

And Lyme disease is not the only concern. Connecticut's blacklegged tick, the deer tick is also capable of transmitting anaplasmosis, babesiosis, and ehrlichiosis. In Connecticut, 18% of dogs tested positive for Lyme disease in one national survey — a rate up to 200 times greater than in southern states. Companion Animal Parasite Council This is not a region where you can afford to be casual about tick prevention.

What Lyme disease actually looks like in dogs

Lyme disease in dogs does not always announce itself dramatically. Many dogs are exposed and never show obvious symptoms, while others develop fever, joint pain, fatigue, and a reluctance to move that owners often mistake for general soreness. Left undetected and untreated, Lyme disease can progress to serious kidney involvement — a condition called Lyme nephritis that can be life-threatening.

The tricky part is that dogs cannot tell you they feel off. By the time lameness or swollen joints become obvious, the infection may have been present for weeks. Annual Lyme testing through your annual wellness exam is one of the most important things you can do for a dog in Connecticut.

What you can do starting today

The single most effective thing you can do is make sure your pet is on a veterinarian-recommended tick preventive — and that it is current. Not last summer's preventive. Not the one you picked up at the grocery store. A product chosen with your pet's lifestyle, weight, and health history in mind, prescribed by a veterinarian who knows your animal.

Beyond that, check your pets for ticks after every outdoor excursion, even a walk through your own yard. Pay particular attention to the area around the ears, between the toes, under the collar, and in the groin and armpit regions where ticks love to hide. If you find a tick, remove it promptly with fine-tipped tweezers, grasping as close to the skin as possible and pulling upward with steady, even pressure.

If your dog is due for their annual wellness visit, now is an ideal time to get that scheduled. We can run a tick-borne disease panel, discuss the right preventive for your pet's routine, and make sure their Lyme vaccine is up to date.

Connecticut springs are beautiful. Tick season does not have to ruin them — but you do need to take it seriously this year. Give us a call and let's make sure your pet is protected.