The NSW Riverina rockmelon grower linked to Australia's fatal listeria outbreak has been given the all-clear to resume business but the melon industry is concerned the cause of the outbreak hasn't been identified.
Rombola Family Farms in Nericon, near Griffith, voluntarily halted production of potentially contaminated melon types after becoming aware of the outbreak six weeks ago.
It has now been approved to resume production after passing the Safety Clearance Program.
Three Victorians and three people from NSW have died as a result of the outbreak linked to the Nericon producer, while another 13 have been infected.