Liberals fed up with the renegade antics of Barnaby Joyce and other senators are urging the Opposition Leader, Malcolm Turnbull, to end the Coalition once and for all after the Senate deals with the emissions trading scheme legislation in the final two weeks of November.

Mr Turnbull, also understood to be fed up, is expected to stage a frontbench reshuffle and is being urged to use the opportunity to stamp his authority further.

"People are getting sick of Barnaby, from Malcolm down," a key Liberal said. "It's getting very, very serious."

But a National hit back: "The best man is winning and they're screaming."

The Nationals have used the time in Opposition to differentiate themselves from the Liberals in a bid for political survival, often involving splits on policy and winding up in public displays of disloyalty.

Tensions were strained yesterday when Senator Joyce attacked the Liberal Senator Bill Heffernan after the giant Queensland cotton farm, Cubbie Station, said it would go into voluntary administration.

In recent weeks the Nationals have attacked the Liberals for opposing Government plans to separate Telstra. Only after heated discussions did the Nationals agree to delay the bill until February, but they will split from the Liberals then and vote for it.

The biggest source of tension has been the emissions trading scheme. Mr Turnbull received party room permission to negotiate amendments with Labor with a view to reaching a deal. But the Nationals stated openly in advance they would not vote for a deal, no matter how good.

The epicentre of hostilities is Queensland, where the two parties merged to form the Liberal National Party.

The LNP's recent humiliation of Peter Dutton during preselection for the Gold Coast seat of McPherson infuriated Queensland Liberals and raised calls for the LNP to be unravelled. Bruce McIver, the LNP president, was in Canberra this week for talks.