Features: Fungal disease of grape causing dark spots on the upper
surface of leaves. Where it's from: Asia, North America, South America,
Timor-Leste, the Russian Federation. How it spreads: Importation of infected vines or plant material
including leaves; local spread over long distances through trade
of infected plants or by spores blown in the wind; transported on
clothing, equipment and personal items.
Grapevine leaf rust causes dark spotting on the top surface of leaves.
Credit: Andrew M. Daly DPIFM, PaDIL
Grapevine leaf rust is caused by the fungus Phakopsora euvitis and mainly occurs in warm temperate and subtropical grape growing regions. Grapevine leaf rust only infects grapes, usually affecting leaves but can also damage fruit and stems, resulting in damage to grape crops.
The rust spreads easily, with spores carried on the wind, or on equipment and clothing. Heavy infestations are common, particularly in warmer temperatures, often ruining the crop. Damage continues into the next season with fewer fruit formed.
The fungus was found in the Northern Territory in 2001 but it was eradicated by 2007.
It is crucial that the fungus is not re-introduced into Australia, where it could spread throughout our highly valued and valuable grape growing regions.
Importing goods
To keep grapevine leaf rust out of Australia, never ignore Australia’s strict biosecurity rules.
