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In recent years, we have been increasingly hearing about the presence of ticks in Quebec. How is the situation, exactly?


What is a tick?

The tick is an insect belonging to the mite family. Its body is oval-shaped and usually brown in colour. The tick can reach different sizes depending on its life stage. Larvae and pupae are very difficult to recognize, as they are very small (less than 1 mm). Adult ticks, on the other hand, can measure between 4-6 mm and even more when they are engorged with blood.


Where are ticks found?

Ticks were found only in the United States until the 2000s. Since then, we have seen more and more of them in Canada and Quebec. The main factors responsible for the arrival of ticks in our regions are global warming and migratory birds, which, in the spring, carry ticks in their plumage and drop them in their path.

In Canada, the expansion occurred quickly in several regions. In Quebec, the Montérégie is the most affected region, because it is located close to enzootic areas in the United States. It is possible to consult a map to see which regions are at risk.

Ticks love warm and moist environments. In our regions, they will mainly be found in deciduous or mixed forests. All locations with tall grasses are favourable to ticks.


How do they feed?

Ticks feed on the blood of mammals, birds, and reptiles. Thus, our domestic animals such as dogs, cats and ferrets are potential food sources. Ticks hang out in bushes and on blades of grass. When a prey passes nearby, it clings to it with its legs. Subsequently, the tick walks on the dog in order to find its feeding site. It is important to know that most of the time, we find them close to the dog’s head, neck and back. To feed, ticks use their mouthparts which they will plant in the skin of the dog and then start their blood meal. At the end of the meal, the tick unhooks from the animal and returns to nature.


Is a tick bite dangerous for my dog?

Some ticks carry infectious agents. Their bite can lead to serious infections with significant consequences on dogs’ health. Lyme disease is the best-known infection transmitted by ticks. There are also several other infectious agents transmitted by ticks which have serious health consequences, and which are still poorly understood.


What should we do if we see a tick on our dog?

The spotted tick should be removed as soon as possible since several pathogens are transmitted within hours of its attachment. To remove a tick, you will need a small plastic hook like the one pictured. You can find this hook in a veterinary clinic.

You can remove the tick in a few easy steps:

  1. Insert the tick into the hook slot
  2. Raise the hook slightly
  3. Twist the hook counterclockwise (the tick will usually unhook in 2-3 turns)
  4. Disinfect the wound

It is very important to wear gloves during this procedure, because several pathogens can be transmitted via small abrasions on your hands. It’s also important not to pull the tick off, as the tick’s mouthparts will linger in the dog’s skin and this could create inflammation at the bite site.


How to prevent ticks?

For dogs, there are several preventive products against ticks. Available in the form of tablets, liquid vials or a collar, medication against ticks can in some cases prevent other parasites such as intestinal worms, fleas, mites and heartworm. In Quebec, the prevention period spans from April-May until November. Speak to your veterinarian about ticks so they can determine the most appropriate preventative treatment for your dog.