A. Urban beekeeping has grown rapidly across Canadian cities over the last decade. Toronto alone now has more than 300 registered rooftop hives, up from fewer than 50 in 2012. B. Supporters argue that city bees face fewer pesticides than their rural cousins, since municipal bylaws restrict many chemical treatments on lawns and parks. C. However, some ecologists warn that honeybees may compete with native wild bees for limited flowers, potentially harming species that are already in decline. D. To address this, several cities now require new beekeepers to complete a certified course and encourage them to plant native wildflowers alongside their hives.