News of its spread to Corsica prompted a fierce reaction from Europe’s plant protection organisation (EPPO), which said this week that ‘eradication measures have been immediately implemented’.
It is a potentially worrying development for wine producers – and wine drinkers.
Xylella fastidiosa is the source of Pierce’s Disease, a lethal vine disease that has caused serious hurt in California’s vineyards, where it costs $104m annually. European Union officials said the bacteria ‘represents a major risk to EU territory’.
But, French government vine expert Jacques Grosman told the Vitisphere.com website that there was currently ‘a low risk of contamination in France’.
In California, xylella fastidiosa is transferred by the blue-green sharpshooter. In Europe, all sap-feeding insects are considered to be potential vectors. It is not know how the bacteria arrived in Italy, where it has killed swathes of olive trees in Puglia.
Pierce’s Disease was exposed in 1892 by Newton B. Pierce (1856–1916) on grapes in California near Anaheim. There is no cure and there are no resistant Vitis Vinifera grape varieties. Chardonnay and Pinot Noir are especially sensitive while Riesling, Sylvaner and Chenin are more resistant.
Infected vines appear water stressed, according to researchers at UC Davis in California. ‘Leaves become red or yellow in mid-summer, berries shrivel [and] dried leaves fall,’ its guidance says.
(Additional reporting by Chris Mercer)
The post Bacteria in the rear lethal vine disease found on French soil appeared first on Decanter.
We were also found by phrases: