The veteran manager says the Moroccan, who is currently on a season-long loan with Fulham, lacked the required attitude to help the west London club return to the top flight
Redknapp – who rarely played Taarabt at Tottenham before selling him to QPR in 2010 – was frustrated by the attitude of the Morocco international and several of his team-mates last term as the Loftus Road outfit were relegated from the Premier League.
QPR are 11/10 with Coral to win the Championship
"I spent all summer trying to remedy our problems, shifting certain players out, getting others with the right attitude in," said Redknapp in his autobiography, which is being serialised in the Daily Mail.
"The close-season was a frustrating time for me as I spent most of it on crutches following a knee operation. With perfect timing, Adel Taarabt promptly got up to his old tricks.
"He turned up late for our training camp in Devon so we sent him home. There were the usual excuses (from Adel) but we're not standing for it any more. There has to be a different attitude if Rangers are to return to the Premier League.
"I know some of these players think they are better than this division but I've been down there and I know there are teams and players that will eat you alive if you are not fully committed.
"My priority was to get rid of the troublemakers. Get rid of them before they got rid of us."