Microbicides
AssigneeCiba-Geigy Corporation
InventorLudwig Maier
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Abstract
The invention relates to salts of the pyrophosphorous acid of formula I ##STR1## wherein X.sym. is a cation equivalent selected from the group consisting of sodium, potassium, lithium, beryllium, magnesium, aluminum, zinc, manganese, copper and NH.sub.4, to the preparation thereof and to novel compounds of formula I, to the use of compounds of formula I as microbicides and as seed dressing agents.
Claims2
A method of controlling phytopathogenic fungi or of protecting plants from attack by said fungi, which comprises applying to said plants or to the locus thereof a fungicidally effective amount of a salt of the pyrophosphorous acid of formula I ##STR14## wherein X.sup..sym. is a cation equivalent selected from the group consisting of sodium, potassium, lithium, beryllium, magnesium, aluminium, zinc, manganese, copper and NH.sub.4.
Seeds dressed with a fungicidally-effective amount of a composition containing an effective amount of a salt of the pyrophosphorous acid of formula I ##STR15## wherein X.sup..sym. is a cation equivalent selected from the group consisting of sodium, potassium, lithium, beryllium, magnesium, aluminium, zinc, manganese, copper and NH.sub.4, together with a suitable carrier therefor.
Dependencies are inferred from the claim text.