The Good Guys' stores in Fyshwick and Belconnen remain closed a week after parts of an exotic beetle were found in a shipment of fridges.
The closures were ordered when the federal Agriculture Department issued a biosecurity control order after traces of a Khapra beetle were discovered in a shipment that was sent to the Fyshwick store on Tuesday last week.
Traces of the same beetle were also found in a shipment sent to the Belconnen store.
A Good Guys spokesman said at the time that both stores would be closed temporarily while assessments were carried out.
But a week later, there is still no information about what was found or when the stores might reopen.
The company did not respond to a request for information.
The federal Department of Agriculture, Water and the Environment said the Khapra Beetle could cost the Australian economy $15.5 billion.
A statement titled "Recent Khapra beetle interceptions in imported goods" said: "Australia has a robust biosecurity system that reduces the risks posed by exotic pests and diseases, and well established procedures to manage interceptions when they do occur."
It is thought the beetle species can hitchhike in containers that previously carried high-risk items.
Goods associated with the affected shipments are being traced.
The beetles can grow up to seven millimetres long and are golden brown with distinctive hair. They are found in countries in Asia, Africa, Europe and the Middle East.
"They can be found in stored products and around places where stored products are kept or transported. This includes between cracks and wall linings of storage containers," an Agriculture Department spokesman said.
"The department is analysing global trade patterns to gain a better understanding as to why these interceptions are taking place, and how non-food goods can become infested."
