A vegetable grower and his associates have been committed to stand trial over more than 100 alleged breaches of the Migration Act.

Key points: Giuseppe Vizzarri, his company and two others have pleaded not guilty to the charges

Giuseppe Vizzarri, his company and two others have pleaded not guilty to the charges Foreign workers were found illegally packing asparagus and broccoli grown on the Koo Wee Rup farm

Foreign workers were found illegally packing asparagus and broccoli grown on the Koo Wee Rup farm The court was told "vast amounts of cash" were paid into banks and withdrawn in cash for the workers

Giuseppe Vizzarri, Sarith Kit and Chheang Ghek Kim Tang have all pleaded not guilty to allegations they ran a multi-million dollar scheme to use foreign workers.

In December 2016, Australian Border Force (ABF) raided Mr Vizzarri's Koo Wee Rup asparagus and broccoli farm south-east of Melbourne.

Ninety foreigners were discovered working illegally in the packing shed.

After a two-day committal hearing, Melbourne Magistrate Peter Reardon found there was sufficient evidence for a trial.

Mr Vizzarri and his company M&G Vizzarri Pty Ltd are facing 107 charges — including "knowing or being reckless" to the fact the workers were not able to work under the Migration Act.

Some of the alleged victims were not allowed to work at all, others were in breach of their visa conditions by working at the farm.

Australian Border Force officials raided Giuseppe Vizzarri's farm in late 2016. ( ABC News: Karen Percy )

'All sorts of shenanigans'

Another man, Sarith Kit, faces 109 charges — the same ones as the company, plus two other charges of money laundering.

The men and women — from Indonesia, Cambodia, Malaysia and Thailand — were employed on a casual basis to pack asparagus and broccoli grown on the farm, the court was told.

There were "all sorts of shenanigans being used to describe the employment arrangements entered in to," prosecutor Gavin Silbert QC told the court during a committal hearing which began on Wednesday.

Workers were brought in by word of mouth, the court heard.

Some workers were employed as drivers who "transported workers to the farm and recorded their attendance," Mr Silbert said.

Some also operated as recruiters.

Sarith Kit is accused of running a sham labour hire company that employed illegal migrant workers. ( ABC News: Karen Percy )

The court heard "vast amounts of cash" — in the millions of dollars — was paid by M&G Vizzarri to companies run by Mr Kit known as VNT Golden Pty Ltd and STN8 Pty Ltd.

The money was then withdrawn in cash and given to the Vizzarri workers.

"They were paid well below award rates under the disguise of being legitimate arrangements of the labour hire companies," Mr Silbert said.

Mr Kit is also charged with dealing with the proceeds of crime, after ABF officers seized $455,490 in Australian currency and $US15,200 in cash after a raid on his home.

Chheang Ghek Kim Tang is also charged with dealing with the proceeds of crime.

The workers packed broccoli and asparagus on the farm. ( ABC News: Jeremy Story Carter, file photo )

Defence lawyer for Mr Vizzarri and his company, Justin Hannebery QC, said his client was charged with immigration offences, not exploiting workers or the underpayment of workers.

Tito Hardian Sukamto, from Indonesia, gave evidence that he started working at Vizzarri farms in September 2015.

He was a driver who ensured other workers got to the Vizzarri farm, keeping records of their attendance.

He also helped recruit others to work on the farm but stopped when he found it too stressful, a statement tendered to the court shows.

The statement was made on the day of the ABF raid.

'No-one ever asked about my visa status'

During cross-examination Mr Sukamto admitted he knew when he arrived on a 10-day holiday visa in January 2008 that he intended to stay on.

"I was told I could find someone who could change the visitor visa to a visa to study," Mr Sukamto said via a translator.

Instead he applied for a protection visa on the grounds he had cancer, telling immigration officials he wanted to stay in Australia to ensure he got better medical treatment, the court heard.

He told police that a Cambodian man called Mr Lee was in charge of finding workers at Vizzarri farms.

Mr Silbert told the court the workers were paid well below award rates. ( ABC Rural: Olivia Garnett, file photo )

"Lee is at the farm all day, everyday that we work. He has around 100 workers at the farm. He does not work, he just supervises," he said.

His statement showed he worked 50 to 60 hours a week, earning an hourly rate of $18.

"No-one at the farm has ever asked me about my visa status," he said in a statement tendered to the court.

Another man, Agus Yusta Pradnyana, worked at a number of farms including the Vizzarri property.

The court heard he came to Australia from Bali in 2012 with his mother on a holiday visa.

His aim, the court heard, was to work to pay off his father's debts.

He applied for a protection visa the day he arrived in Sydney, the court was told.

He started at Vizzarri in September 2015 and was also a driver.

A statement showed the workers were paid on Fridays.

Cash was put inside envelopes with the worker's hours and total pay written on them, as well as a number identifying them.

Mr Pradnyana was number 602, his statement showed.

He was paid $15 for packing and $18 when he drove the vans.

He was not working at the farm the day of the raid, the court was told.

During cross-examination by lawyer Simon Moglia — representing Mr Kit and Ms Tang — both men admitted they knew they could not work before they left their home countries.

In a statement tendered to the court, Mr Pradnyana also said he was never asked by anyone at Vizzarri farms if he had a visa to work.