Spider activity peaks from late spring to early fall. During these warmer months, spiders are more active and more likely to be seen inside and outside homes.
The most common spiders in Ontario homes include the House Spider, Wolf Spider, Sac Spider, and occasional sightings of the Black Widow. These species vary in size and behavior but are mostly harmless to humans.
Wolf spiders in Ontario are not dangerous to humans. They may bite if provoked, but their venom is not considered medically significant. They are ground hunters and do not spin webs.
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