CANE farmers across the state are urged to "rally again” in their long-running battle to retain control over how they sell their sugar.

The call to action comes from federal MP for Dawson George Christensen in response to a surprise bid by NSW Senator David Leyonhjelm to have the hard-fought sugar marketing code of conduct scrapped.

Senator Leyonhjelm claims the code introduced by the Coalition in April contained elements that were "anti-free trade, anti-free market and anti-everything except maintaining a growers' co-operative socialist nirvana”.

He said he has the support of Queensland Labor senators to move a disallowance motion into the Senate.

"This is an arrogant stance by a NSW Senator with no experience or understanding of the sugar industry,” counters Mr Christensen, who has called on the industry to fight back.

"Senator Leyonhjelm also demonstrates his profound ignorance of the sugar industry by stating that if cane farmers don't like the marketing option being offered by a Wilmar mill, they can 'hire a truck and send their crop 300 kilometres down the road'.

"He should come to Queensland and sit down and listen to cane farmers.

"If he did that, I think he would, and he should, withdraw his disallowance motion.

"But if Leyonhjelm does not do that, then the so-called 'rowdy' sugar growers should phone the offices of Queensland Labor senators and ask them to support Queensland cane farmers over a foreign multinational.”

Federal Treasurer Scott Morrison described it at the time as "light touch” regulation, but Senator Leyonhjelm strongly disagrees.

"That is basically just saying where Wilmar owns the mills in an area, it's not acceptable for the growers to basically have no other option but to sell their sugar to Wilmar.”

Senator Leyonhjelm said he didn't expect a vote would be held on his new disallowance motion until September, at the earliest.