I don’t have any such WiFi devices however if they support IFTTT you could create a virtual switch device in Vera and use PLEG or Reactor to detect the virtual switches state for on / off and fire off a web hooks request to IFTTT to control the WiFi plug.
Just a thought.
https://community.getvera.com/t/vera-ifttt-integration-it-can-be-done-today/198860