It’s Time to Worry About Ticks in the City Think ticks are limited to rural areas and the wilderness? Think again. A day in the sun last month in Brooklyn. Experts warn that disease-carrying ticks have invaded urban green spaces.Credit...Adam Gray/Associated Press June 12, 2026, 5:00 a.m. ET Blanket. Snacks. Drinks. Sunscreen. Tick check? A summer picnic in a city park or other activities in urban green spaces may need to include one extra step as experts across the Northeast warn of a bad tick season.