Armillaria root rot, also known as the honey toadstool or bootlace fungus, is a widespread and often destructive disease that can affect an extremely wide range of plants. Overseas, the disease is reported to be caused by Armillaria mellea. In Australia, however, a related indigenous fungus Armillaria luteobubalina is the most common cause of Armillaria...

Endophytes are fungi that live within healthy plant tissue, relying on it for protection, nutrition and dispersal. Usually they do not cause any disease symptoms but can be detected by examining plant sections with a microscope or by laboratory tests.

Target spot, or early blight is one of the most common diseases attacking leaves and stems of potatoes. It usually spreads during autumn and is welcomed by some growers as a haulm killer. It can, however, cause losses if outbreaks occur early in the season, or in late maturing crops.

Over 16 virus and virus-like diseases have been reported to infect chrysanthemums. Fortunately not all of these occur in Australia. Four of these are considered to be economically important in Australia.