Phylloxera Flashcards
When did Phylloxera invade Jumilla?
1989
Where is Phylloxera native to?
Mississippi Valley
What is the recommended period for flooding to combat Phylloxera?
submerged for 40 days
What were the last two vineyards of Burgundy planted on their own rootstock?
Romanée-Conti and Richebourg
•Ripped up in 1945
•Replanted in 1947
What was the last major region in France to be invaded by Phylloxera?
Champange - 1988 in the Aube
What two regions famously pivoted away from red grape varieties post-Phylloxera?
Sancerre and the Jura
What was the original treatment of choice in France for Phylloxera?
Carbon Disulfide (CS2) •A gas that was injected into the soil (of a very specific nature) •Highly combustible and very expensive
When did Phylloxera invade Greece?
1898
•Did not reach the Pelopponese until the 1960s and Crete until the 1970s
What three zones is Australia divided into for Phylloxera?
- Phylloxera Exclusion Zoen (PEZ)
- Phylloxera Risk Zones (PRZ)
- Phylloxera Infected Zones (PIZ) - with a 5 km vine-free buffer zone required
What portion of South Australia’s vines are planted on their own rootstock?
74%
What are the only Australian states Phylloxera has been discovered in?
- Victoria
- Queensland
- NSW
When was Phylloxera discovered in California?
1873 - Buena Vista (owned by Agoston Haraszthy; in Sonoma)
What two factors caused Phylloxera to infest California twice?
In 1980, AXR-1 was the recommended rootstock by UC Davis, but it was a cross between Aramon (vinifera) and rupestris and was known to not be resistant
•The rise of irrigation
When was Phylloxera discovered in Oregon?
1990
When did Phylloxera infest Washington?
It hasn’t–many believe the dry conditions and extreme winters have kept Phylloxera at bay
