The man was stopped in his car at a random mobile roadblock, five kilometres east of Broken Hill, where inspections were being carried out.

He was found to have three plums, four apples, five cherry tomatoes, one tomato and five limes with him and was asked to pay the $200 on-the-spot fine but chose not to.

Instead the matter was heard in the Broken Hill Court and as a result he was fined $450 in addition to court costs and professional fees adding up to $2558.

Tristate fruit fly co-ordinator Bernie Dominiak said the result served as a warning to motorists to obey the rules regarding travelling with fruit within the State's exclusion zones.

"If the offence warrants a court appearance, or they choose to go before the court, fines of up to $11,000 may be imposed."

He said all citrus, stone fruit, tropical fruit and berries were hosts for Queensland fruit fly, along with capsicums, tomatoes and chilli.

"Any fruit accidentally brought into the fruit fly exclusion zone should be destroyed by placing it in a thick plastic bag, tying the top and leaving it in the sun for a few days, before disposing of it with the normal garbage," he said.