Phytophthora ramorum, ce champignon qui menace les forêts

Phytophthora ramorum, ce champignon qui menace les forêts  

Phytophthora ramorum, ce champignon qui menace les forêts  

Phytophthora ramorum, behind this Latin name shrouds an oomycete or "pseudo-mushroom". A phytopathogenic specialist very impressive, since it can cause foliar putrefaction on fancy plants, for example, rhododendrons and viburnums.

Phytophthora ramorum, a pseudo-growth that has effectively completed a ton of harm

Known in Europe since the mid 2000s, it has, previously, caused now and again irreversible harm. In California first, where he is considered in charge of the abrupt decrease of oaks or Sudden Oak Death, in unique form. Since 2009, Phytophthora ramorum has likewise caused a plague on Japanese larch manors in Great Britain, which extended from needle shedding to twig passing and, at last, monstrous mortality. trees. In France, it is in May 2017 in Finistère, that Japanese larches have paid for Phytophthora ramorum. From that point forward, the wellbeing specialists have been watching him intently.

What measures to screen the spread and end Phytophthora ramorum?

Seizure by the Ministry of Agriculture, the National Agency for Food Safety, Environment and Labor or ANSES, directed a foundation consider. Its objective ? Distinguish climatic and anthropogenic elements helpful for the foundation and spread of Phytophthora ramorum. Yet additionally, and above all, make a non-comprehensive rundown of possibly compromised woodland species. Or maybe disturbing, this rundown makes reference to many timberland species, past the larch, which could die if the climatic conditions are good to the blooming of Phytophthora ramorum. So as to screen the spread, keep the danger of presentation and destroy the officially polluted homes, ANSES uncovers its suggestions:

Build up concentrated checking, essentially in Brittany to recognize conceivable new foci of Phytophthora ramorum, just as in other climatically ideal locales for its advancement (Normandy, Limousin ...) and where high densities of helpless species and ready to transmit the contamination are planted, including larch and chestnut,

Abstain from planting the three most helpless larch species in territories where Phytophthora ramorum is probably going to develop,

Build up destruction measures for tainted woods species, including undergrowth species, for example, Rhododendron ponticum, if Phytophthora ramorum is identified in the backwoods,

Increment the quantity of assessments of elaborate nurseries and greenery enclosure focuses, to keep the presentation of Phytophthora ramorum from fancy host species in France and the European Union,


Advise proprietors of parks and gardens to build consciousness of the danger of uncontrolled presentation of host plant material of Phytophthora ramorum from contaminated territories (Brittany and Great Britain).