THE catalyst for a hard-fought resolution to the bitter sugar marketing fight is under threat from an unlikely quarter, though Proserpine growers have their hands full.

New South Wales Senator David Leyonhjelm announced plans last week to introduce a disallowance motion against the sugar marketing code of conduct in the Senate, expected to sit between mid and late September.

Both the Australian Milling Council and Wilmar Sugar were opposed to the code when it was introduced by the Federal Government in April.

However it was welcomed by peak lobby group Canegrowers and sugar cane producers.

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' cooperative socialist nirvana”.

Canegrowers Proserpine manager Mike Porter said the chance of the code being scrapped was not at the front of local growers' minds as the fallout from TropicalCyclone Debbie andthe falling sugar price presented more immediate concerns.

"(However) we are disappointed that a senator from interstate who has no connection with the industry would raise this code as not being in the country's best interest when everybody worked so hard to get it up,” he said.

"We are certainly opposed to Senator Leyonhjelm's proposal.

"It certainly sets the industry back now.”

Mr Porter understood Labor intended to support the disallowance motion but was unclear on how other senators would vote.

Federal member for Dawson George Christensen, who lobbied for the code long before its introduction earlier this year, told Farmonline he didn't know the views of the Greens or independent senators Derryn Hinch, Cory Bernardi and Lucy Gichuhi.

"(But) we do know what the view of the Coalition and One Nation is and I believe we know the view of the Nick Xenophon Team, given I've spoken to Nick Xenophon in the past and he's been quite supportive of the sugar industry code of conduct,” he said.

Cangrowers (Brisbane) via Twitter said the "code prevents sugar mills abusing their monopoly in contract negotiations with farmers”.