Queensland's timber industry is the latest commodity felled by China's unpredictable trade blows.
Agriculture Minister and Maranoa MP David Littleproud confirmed the timber and barley industries had been dealt another sucker punch.
"The Australian government is aware that China has suspended exports of Australian logs from Queensland and exports of barley from an additional barley exporter," Mr Littleproud said.
"Australia has strong regulatory controls that underpin the integrity and biosecurity of all products exported.
"We will work with Chinese authorities to investigate and resolve these issues."
Queensland's timber industry contributes $3.8 billion to the state economy.
It is the third highest valued primary industry after meat and sugar, worth $472 million annually at the first point of processing.
Timber Queensland chief executive officer Mick Stephen said log exports from Queensland to China had been suspended on the basis of detections of live insects in consignments.
"We are seeking more details about the specific concerns raised and steps that can be taken to address these quarantine requirements in conjunction with biosecurity authorities," he said.
Emerald Grain has also been suspended from exporting barley to China, with inspection officials claiming an excessive number of weed seeds, believed to be Brome grass, were found in a shipment.
The exporter recently sent two barley shipments, one from Melbourne and one from Albany, Western Australia, and was seeking clarification as to whether weed seeds were found in one or both shipments.
The decision follow's the suspension of Australia's largest grain exporter, CBH, for allegedly breaching weed seed protocols in September.
Last month, China's spinning mills were ordered to stop buying Australian cotton lint due to "apparent changes to export conditions to the People's Republic of China".
