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Two new cases of Xylella fasÂtidiosa were disÂcovÂered in the comÂmunes of Biot and Menton in southÂeastÂern France, bringÂing the total numÂber of infected areas in the Alpes-Maritimes departÂment to five since October 2015. The French govÂernÂment has impleÂmented proÂtecÂtion zones around the infected areas, banned the sale of ten plant species, and informed the govÂernÂments of Italy and Monaco due to the proxÂimÂity of the new infecÂtions to interÂnaÂtional borÂders.
The govÂernÂment of the Alpes-Maritimes departÂment announced that two new cases of Xylella fasÂtidiosa had been detected in the comÂmunes of Biot and Menton in the Provence-Alpes-Côte d’Azur region of southÂeastÂern France.
The new infecÂtions have been idenÂtiÂfied as belongÂing to a sub-species called mulÂtiÂplex, the same one detected in three other areas of the departÂment in October 2015, specifÂiÂcally in Nice, Mandelieu-La-Napoule and Saint-Laurent-du-Var. This sub-species is not harmÂful to olive trees or grape vines. This brings the numÂber of areas infected by Xylella fasÂtidiosa in the Alpes-Maritimes departÂment since October 2015 to five.
A proÂtecÂtion zone covÂerÂing a radius of 10 kiloÂmeÂtres (6.2 miles) has been impleÂmented around each infected area. Due to the proxÂimÂity of the new infecÂtions to interÂnaÂtional borÂders, the French authorÂiÂties have forÂmally informed the govÂernÂments of Italy and Monaco.
In Menton, sitÂuÂated on the French Riviera near the Franco-Italian borÂder, the infected plant was found in the Jardin du Palais de Carnolès. The area of detecÂtion has been closed off and is underÂgoÂing treatÂment within a radius of 100 meters. Some of the plants destroyed include roseÂmary and lavenÂder, which were immeÂdiÂately burned on the spot, in accorÂdance with a govÂernÂment-imposed meaÂsure to limit the risk of furÂther conÂtÂaÂmÂiÂnaÂtion.
In the meanÂtime, an invesÂtiÂgaÂtion is underÂway to find the source of conÂtÂaÂmÂiÂnaÂtion. Initial indiÂcaÂtions reveal that the infecÂtion may have origÂiÂnated in a conÂsignÂment of polyÂgala plants from Italy in 2011 and which may have already been conÂtÂaÂmÂiÂnated before it reached the Côte d’Azur region.
As part of the meaÂsures to preÂvent furÂther conÂtÂaÂmÂiÂnaÂtion, the govÂernÂment of the Alpes-Maritimes departÂment has banned the sale of ten plant species, which include sparÂtium (sparÂtium junceum l), roseÂmary (romarin rosÂmarÂiÂnus), polyÂgala myrÂtiÂfoÂlia, sweet scented geraÂnium (pelaÂroÂnium graveÂolens), myrÂtle (myrÂtus comÂmuÂnis), lavenÂder (lavenÂdula denÂtata), hebe (hebe speÂciosa), genista ephedroides, cytisus (cytisus raceÂmoÂsus), and sycamore maple (acer pseudoÂplaÂtanus).