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by bregma 10 hours ago
The black-legged tick season in Ottawa is March through June and again September through November. Summer (deerfly season) is just too hot for them and they go to ground.

We do all the best camping in January and February. Why, you might ask, when it's usually colder than -20 C? No ticks. Also no mosquitos, blackflies, or deerflies but mostly no ticks.