In another case, Philip Chong was caught importing prohibited plant material after packages were intercepted at the international mail centre in Auckland under a false name.
On Monday, Chong pleaded guilty to two charges of possessing unauthorised goods and was convicted and sentenced to 200 hours of community work.
Ministry for Primary Industries spokesman Craig Hughes said both cases were blatant breaches of the Biosecurity Act.
"It is neither legal nor wise to import plant material into the country without approval and doing presents a very real threat to New Zealand's biosecurity."