Sodium arsenite has never been used against grapevine bois noir phytoplasma
Contrary to the statement appearing in EPPO RS 2003/012 on the situation of grapevine yellows in France, sodium arsenite (which has now been withdrawn) had never been used against grapevine bois noir phytoplasma in France, but was used against esca (a wood disease of uncertain aetiology, involving a complex of fungal pathogens).
Sources
Personal communication with B. Herlemont, 2003-03.