The ghost of Kevin Rudd continues to stalk Julia Gillard's campaign.

With the Labor leader touring the crucial state of Queensland today, Mr Rudd has so far failed to publicly support his former deputy, who knifed him last month to secure the top job in the face of bad party polling.

Party-free politics ... A Kevin Rudd campaign sign in the Brisbane suburb of Hawthorne today with something missing from the Labor logo. Credit:Daniel Hurst

Mr Rudd has not even mentioned the Prime Minister by name since the election was called 10 days ago - dodging repeated questions from journalists last week on a much-publicised day of campaigning in his electorate of Griffith.

Now comes the embarrassing news that Labor branding is nowhere to be seen on Mr Rudd's official campaign posters.