In February 2004, a shipment of Australian wheat was rejected by an importing country that alleged the grain contained ustilospores of Tilletia indica. This allegation caused all wheat trading and shipments from Australia to be stopped. At this time, Australian wheat was worth A$4 billion and provided 14% of the world's export demand. How did this misidentification occur? And why is correct identification of pathogens so important when trading with other countries?
The tale of a tiny worm, the bacteria that live inside her, and a tree being munched on by a grub.