Fanleaf deformation is a viral disease that causes extensive damage for many winegrowers worldwide.
The R&D department at Pepinieres Guillaume has endeavoured to find a means of fighting this disease or at least alleviating the symptoms.
Preemption
For several years, Pépinières Guillaume has been participating in research programs on viral premunition against grapevine fanleaf virus. This work involves studying hypo-virulent strains of GFLV (Grapevine Fanleaf Virus) capable of conferring greater tolerance to viral infection.
In trials conducted to date, plants derived from these protocols have demonstrated an ability to maintain adequate production in conditions where conventional plants would rapidly decline.
Within the strict framework of current phytosanitary regulations, the use of plant material carrying a viral strain (even a hypo-virulent one) is restricted to experimental settings or schemes supervised by the competent authorities.
Because it carries a viral strain, this type of plant must be strictly reserved for replacing vines in areas infected with grapevine fanleaf virus.
