Ciba-Geigy Corporation

Theodor Staub

Robert Nyfeler

Wilhelm Ruess

Robert J Williams

Jurg Eberle

Pierre Urech

Walter Kunz

Karl Hoegerle

Paul Margot

Heide Dahmen

Jean-Pierre M E/ Traux

Patricia A Ahl Goy

3-Cyano-4-(2,3-dichlorophenyl)pyrrole is suitable for controlling phytopathogenic microorganisms and is markedly superior in activity to preparation of a similar structure. Said compound may be employed for seed dressing, either along or in the form of compositions.

Fungicidal use of a cyanopyrrole derivative and method for producing same

A process for immunizing healthy plants against plant diseases which process comprises the dressing and/or coating of seeds or the treatment of plants and/or their environment by using active ingredients of the formula ##STR1## in which Hal is halogen,

Method for protecting plants against diseases

The invention relates to plant protection compositions based on a two-component system of plant fungicides, one of which is 1-[2-(2,4-dichlorophenyl)pentyl]-1H-1,2,4-triazole and the other is an N-haloalkanesulfenylphthalimide derivative. In the range from 1:3 to 1:100 the disclosed mixtures display enhanced fungicidal activities.

Compositions for controlling plant diseases and the use thereof in plant

The invention relates to plant protection compositions based on a two-component system of plant fungicides, one of which is 1-[2-(2,4-dichlorophenyl)pentyl]-1H-1,2,4-triazole and the other is Mancozeb, which is an [ethylenebis(dithiocarbamato)]manganese complex with [ethylene-bis(dithiocarbamato)]zinc of the formula II ##STR1## In the range from 1:3 to 1:100 the disclosed mixtures display enhanced fungicidal activities.

A microbicidal composition comprising at least one microbicidal acylaniline derivative such as metalaxyl, furalaxyl and the like, and H.sub.3 PO.sub.3 or a salt thereof, exerts a synergistically potentiated activity against plant diseases, especially also against acylaniline-resistant pathogens. The composition may optionally comprise a third protective fungicidal component. The three active components may be applied in succession in any order or simultaneously.

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Riehen, Switzerland

Theodor Staub