Plant fungicidal compositions are produced which comprise an amount of a compound of the formula: ##SPC1## Wherein Y is the anion of an inorganic or organic acid, sufficient to be effective for killing, combatting or controlling plant fungi, in combination with a solid or liquid diluent or carrier. Methods for killing, combatting or controlling fungal diseases in plants comprise applying to the fungi or to the plant to be protected an effective or toxic amount of the above compound.
