But because of a freeze on visas, Janet Demetri won’t be employing the 20 or so workers this summer. So as the crowds rush back, Demetri must work with nine employees for her restaurant and market — forcing her to shutter the business twice a week.

“It’s really disturbing because we are really busy,” said Demetri. “We can’t keep up once the doors are open.”

“The work that people on H-2B visas do or on J-1 summer work travel is not something that is alien to Americans,” said Mark Krikorian, executive director of the Center for Immigration Studies, which advocates for restrictions. “Those jobs are already mostly done by Americans whether its landscaping, making beds or scooping ice cream. The employers are just going to have to up their game in recruitment because there are 20 million people who are unemployed whom they could be drawing from.”

Mark Carchidi, whose company Antioch Associates USA II Inc. processes paperwork for H-2B visas on the East Coast, said businesses he works with were counting on an additional 30,000 visas this year beyond the 66,000 already allowed under the program.