CH262191A - Method of combating fungal diseases. - Google Patents
Method of combating fungal diseases.Info
- Publication number
- CH262191A CH262191A CH262191DA CH262191A CH 262191 A CH262191 A CH 262191A CH 262191D A CH262191D A CH 262191DA CH 262191 A CH262191 A CH 262191A
- Authority
- CH
- Switzerland
- Prior art keywords
- active substance
- diphenyl
- fungal diseases
- sulfur
- inert
- Prior art date
Links
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
Verfahren zur Bekämpfung von Pilzkrankheiten. Es ist bekannt, dass zahlreiche Diphenv1- verbindungen insektizide Eigenschaften auf weisen und insbesondere als Mottenbekämp- fungsmittel verwendet werden.
Eingehende Versuche haben gezeigt, dass Diphenylverbindungen gemäss folgender all gemeiner Formel
EMI0001.0009
wobei X Schwefel oder eine schwefelhaltige Gruppe, z. B. S0, SO" S oder SS, bedeutet, wertvolle Funnizide darstellen und erfolg reich zur Bekämpfung von Pilzkrankheiten verwendet werden können.
In obiger Formel können die Phenylreste substituiert sein, beispielsweise durch Halo genatome, Kupfer, Quecksilber, ferner durch Sulfo-, Nitro-, Nitroso- oder Äther-Gruppen. Besonders wirksame Fungizide werden erbal ten durch Substitution der 4-resp. der 4,4' Stellungen.
Von den vielen theoretisch möglichen Ver bindungen dieser Art seien im folgenden einige erwähnt.
Diphenylsulfoxyd 4-Chlordiphenylsulfoxy d 4,4'-Dichlordiphenylsulfoxyd 4,4'-Dinitrodiphenylsitlfoxy d, Diphenylsulfon. 4-Chlordiphenylsulfon 4,4'-Dichlordiphenylsulfon 4,4'-DinitrodiphenylsLilfan Chlor-nitro-diphenylsulfon 4-Nitrnflinb @nvl -,
nlfnn _ Diplienylsulfid Monoehlordiphenylsitlfide Dichlor diphenylsulfide p-Methoxydipheny lsulfid Dimetlioxydiphenylsulfid Diplienyldisulficl und dessen Derivate. Solche und ähnliche Verbindungen gemäss der allgemeinen Formel mit substituierten oder nichtsubstituierten Phenylresten verlei hen bereits in sehr geringer Konzentration den damit behandelten Pflanzen einen wirk samen Schutz gegen Befall durch parasitäre Pilze.
Die Anwendungsformen der neuen Fungi- zide richten sich nach dem Verwendungs zweck. Die aktiven Stoffe können in bekann ter Weise auf inerte pulverförmige Träger stoffe aufgetragen werden und als trockenes Pulver auf die Pflanzen zerstäubt oder nach Zusatz von Wasser in Form einer Spritzbrühe verwendet werden. Ferner können konzen trierte Emulsionen hergestellt werden, welche vor Gebrauch mit Wasser verdünnt werden. Schliesslich können die erfindungsgemäss ver wendeten Fungizide in organischen Lösungs mitteln aufgelöst werden und die erhaltenen Produkte zur Wundbehandlung von Bäumen oder zur Holzimprägnierung verwendet wer den.
Hierbei besteht die Möglichkeit, die neuen Fungizide mit andern bereits bekannten Pflanzenschutzmitteln, beispielsweise mit In sektiziden, zu kombinieren.
Method of combating fungal diseases. It is known that numerous diphenyl compounds have insecticidal properties and are used in particular as mothicides.
In-depth tests have shown that diphenyl compounds according to the following general formula
EMI0001.0009
where X is sulfur or a sulfur-containing group, e.g. B. S0, SO "S or SS means that they represent valuable funnicides and can be used successfully to combat fungal diseases.
In the above formula, the phenyl radicals can be substituted, for example by halogen atoms, copper, mercury, and also by sulfo, nitro, nitroso or ether groups. Particularly effective fungicides are inherited by substituting the 4-resp. the 4,4 'positions.
Some of the many theoretically possible compounds of this type are mentioned below.
Diphenyl sulfoxide 4-chlorodiphenyl sulfoxy d 4,4'-dichlorodiphenyl sulfoxide 4,4'-dinitrodiphenyl sulfoxy d, diphenyl sulfone. 4-chlorodiphenylsulphone 4,4'-dichlorodiphenylsulphone 4,4'-dinitrodiphenylsilfan chloro-nitro-diphenylsulphone 4-nitrinflinb @nvl -,
nlfnn _ Diplienylsulfid Monoehlordiphenylsitlfide Dichlor diphenylsulfide p-Methoxydiphenylsulfid Dimetlioxydiphenylsulfid Diplienyldisulficl and its derivatives. Such and similar compounds according to the general formula with substituted or unsubstituted phenyl radicals give the plants treated with them effective protection against attack by parasitic fungi, even in very low concentrations.
The forms of application of the new fungicides depend on the intended use. The active substances can be applied to inert powdery carrier substances in a known manner and sprayed onto the plants as a dry powder or, after adding water, used in the form of a spray mixture. Furthermore, concentrated emulsions can be produced which are diluted with water before use. Finally, the fungicides used according to the invention can be dissolved in organic solvents and the products obtained can be used for treating wounds in trees or for impregnating wood.
There is the possibility of combining the new fungicides with other already known plant protection products, for example with insecticides.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH262191T | 1947-10-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH262191A true CH262191A (en) | 1949-06-30 |
Family
ID=4474232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH262191D CH262191A (en) | 1947-10-15 | 1947-10-15 | Method of combating fungal diseases. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH262191A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2695224A (en) * | 1951-12-26 | 1954-11-23 | Monsanto Chemicals | Prevention of plant growth with arylic sulfides |
DE1021364B (en) * | 1954-07-15 | 1957-12-27 | Koninklijke Pharma Fab Nv | Process for the preparation of chlorine-containing fungicidally and / or insecticidally active derivatives of alkyl esters of cyclohexanecarboxylic acids |
DE1057379B (en) * | 1953-08-20 | 1959-05-14 | Boots Pure Drug Co Ltd | Mite-killing agents |
US3186904A (en) * | 1961-02-03 | 1965-06-01 | Boots Pure Drug Co Ltd | Fungicidal sulphones and sulphoxides |
US3248284A (en) * | 1964-06-30 | 1966-04-26 | Pennsalt Chemicals Corp | Method for control of powdery mildew |
-
1947
- 1947-10-15 CH CH262191D patent/CH262191A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2695224A (en) * | 1951-12-26 | 1954-11-23 | Monsanto Chemicals | Prevention of plant growth with arylic sulfides |
DE1057379B (en) * | 1953-08-20 | 1959-05-14 | Boots Pure Drug Co Ltd | Mite-killing agents |
DE1021364B (en) * | 1954-07-15 | 1957-12-27 | Koninklijke Pharma Fab Nv | Process for the preparation of chlorine-containing fungicidally and / or insecticidally active derivatives of alkyl esters of cyclohexanecarboxylic acids |
US3186904A (en) * | 1961-02-03 | 1965-06-01 | Boots Pure Drug Co Ltd | Fungicidal sulphones and sulphoxides |
US3248284A (en) * | 1964-06-30 | 1966-04-26 | Pennsalt Chemicals Corp | Method for control of powdery mildew |
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