Queensland hospitals could “grind to a halt” as a result of industrial action unless support staff get a better deal, a public servants’ union says. Together secretary Alex Scott said on Friday the union had already lodged for industrial action ballots to happen in Townsville and Rockhampton after talks stalled on a new collective bargaining agreement. He said further applications for ballots in large parts of the state’s southeast corner, as well as Cairns and Mackay, would likely be made in coming days. Job security, manageable workloads and budget transparency were the union’s key concerns after Queensland Health made a “disrespectful offer” for workers, he said.