DE876492C - Pest control - Google Patents

Pest control

Info

Publication number
DE876492C
DE876492C DEB16446A DEB0016446A DE876492C DE 876492 C DE876492 C DE 876492C DE B16446 A DEB16446 A DE B16446A DE B0016446 A DEB0016446 A DE B0016446A DE 876492 C DE876492 C DE 876492C
Authority
DE
Germany
Prior art keywords
ioo
halogenated
salts
saligenins
pest control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEB16446A
Other languages
German (de)
Inventor
Fritz Dr Gerner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CH Boehringer Sohn AG and Co KG
Original Assignee
CH Boehringer Sohn AG and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CH Boehringer Sohn AG and Co KG filed Critical CH Boehringer Sohn AG and Co KG
Priority to DEB16446A priority Critical patent/DE876492C/en
Application granted granted Critical
Publication of DE876492C publication Critical patent/DE876492C/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N31/00Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
    • A01N31/08Oxygen or sulfur directly attached to an aromatic ring system

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

Schädlingsbekämpfung Die guten fungiciden, baktericiden und insekticiden Eigenschaften der chlorierten Phenole und ihrer Schwermetallsalze sind bekannt. Ihrer Anwendung in der Landwirtschaft steht aber ihre phytotoxische Wirkung im Wege.Pest control The good fungicidal, bactericidal and insecticidal Properties of chlorinated phenols and their heavy metal salts are known. Their use in agriculture stands in the way of their phytotoxic effect.

Es wurde nun gefunden, daß durch Einführung einer Oxymethylgruppe in ein beliebiges Halogenphenol, und zwar in Orthostellung zur phenolischen Hydroxylgruppe, halogenierte Saligenine der allgemeinen Formel erhalten werden, deren Salze, insbesondere Schwermetallsalze, keine phytotoxische Wirkung mehr ausüben. Von den Substituenten R1, R@, R ; und R, in der oben angegebenen Formel muß mindestens einer ein Halogenatom sein. Die restlichen Substituenten können Wasserstoff, Alkylreste oder Halogenatome sein. Bei diesen Substanzen tritt gleichzeitig eine Steigerung der fungiciden Eigenschaften auf. Die Herstellung der halogenierten Saligenine kann nach bekannten Methoden erfolgen (Beilstein, 6, 893 bis 8g5). Die Schwermetallsalze der halogenierten Saligenine werden in üblicher Weise aus den wäßrigen Lösungen der entsprechenden Alkalisalze durch Fällen mit anorganischen :Metallsalzlösungen, z. B. Salzen des Zinks, des 3-wertigen Eisens, des Kupfers, Mangans oder Quecksilbers, dargestellt.It has now been found that by introducing an oxymethyl group into any halophenol, specifically in the ortho position to the phenolic hydroxyl group, halogenated saligenins of the general formula are obtained whose salts, in particular heavy metal salts, no longer exert a phytotoxic effect. Of the substituents R1, R @, R; and R, in the formula given above, at least one must be a halogen atom. The remaining substituents can be hydrogen, alkyl radicals or halogen atoms. With these substances there is also an increase in the fungicidal properties. The halogenated saligenins can be prepared by known methods (Beilstein, 6, 893 to 8g5). The heavy metal salts of the halogenated saligenins are in the usual way from the aqueous solutions of the corresponding alkali salts by precipitation with inorganic: metal salt solutions, z. B. salts of zinc, trivalent iron, copper, manganese or mercury shown.

Die fungicide Wirksamkeit der erhaltenen Salze wurde gegenüber verschiedenen Pilzschädlingen auf verschiedenen Kulturpflanzen geprüft. Die Ergebnisse dieser Untersuchungen unter Verwendung der nachstehend angegebenen Verbindungen sind in der folgenden Tabelle zusämmengefaßt: A. 3, 5, 6-Trichlorsa:ligenin, F des freien Phenols 12.7 bis z28°, verwendet wurde .das Zinksalz; B. 3, 5-Dichlorsaligenin, F des freien Phenols 82°, verwendet wurde das Cuprisalz; 3, 4, 5, 6-Tetrabromsaligenin, F des freien Phenols z58°, verwendet wurde das Manganosalz; D. 3-Brom-5-methylsaligenin, F des freien Phenols 39', verwendet wurde das Ferrisalz. Konzen- Clado- Clado- Colleto- tration sporium sporium trichum Substanz der Sus- (Gurken) (Tonrat.) (Bohnen) Pension % Abtötung der Pilze in Prozent A ........ x ioo ioo ioo B . . . . . . . . 0,5 ioo - ioo 9o bis ioo C . . . . . . . . 0,5 ioo ioo go bis ioo D . . . . . . . . i ioo ioo go bis ioo Konzen- Phoma tration (Kohl) Substanz der Abtötung Verbrennung Suspension der Pilze °/o in Prozent A ........... z ioo keine B . . . . . . . . . . . 0,5 go bis ioo keine C ........... 0,5 go geringe D . . . . . . . . . . . i go bis ioo leine Die Salze der halogenierten Saligenine können sowohl als Stäube- wie als Spritzmittel zur Anwendung kommen.The fungicidal activity of the salts obtained was tested against various fungal pests on various crop plants. The results of these investigations using the compounds given below are summarized in the following table: A. 3, 5, 6-Trichlorsa: ligenin, F of the free phenol 12.7 to z28 °, the zinc salt was used; B. 3, 5-dichlorosaligenin, F of the free phenol 82 °, the cupris salt was used; 3, 4, 5, 6-tetrabromosaligenin, F of the free phenol z58 °, the manganese salt was used; D. 3-Bromo-5-methylsaligenin, F of the free phenol 39 ', the ferric salt was used. Concentrate Clado Clado Colleto tration sporium sporium trichum Substance of Sus- (cucumber) (Tonrat.) (Beans) pension % Kill of fungi in percent A ........ x ioo ioo ioo B. . . . . . . . 0.5 ioo - ioo 9o to ioo C. . . . . . . . 0.5 ioo ioo go to ioo D. . . . . . . . i ioo ioo go to ioo Concentrate Phoma tration (cabbage) Substance of killing burn Suspension of mushrooms ° / o as a percentage A ........... z ioo none B. . . . . . . . . . . 0.5 go to 100 none C ........... 0.5 go low D. . . . . . . . . . . i go to ioo leash The salts of the halogenated saligenins can be used both as dusts and as sprays.

Beispiel i io Teile eines Salzes des halogenierten Saligenins und 3o Teile Kaolin, 6o Teile einer i °/oigen Lösung eines üblichen Emulgators und ioo Teile einer i °/jgen Lösung von Methylcellulose werden vermahlen und die erhaltene 5°/oige Suspension mit Wasser bis zur gewünschten Konzentration der Spritzbrühe verdünnt. Beispiel 2 ro Teile eines Metallsalzes eines halogenierten Saligenins werden mit 9Ao Teilen Kaolin vermahlen.Example i io parts of a salt of halogenated saligenin and 30 parts of kaolin, 60 parts of an i% solution of a customary emulsifier and 100 parts Parts of a 100% solution of methyl cellulose are ground and the resulting solution 5% suspension with water up to the desired concentration of the spray mixture diluted. Example 2 ro parts of a metal salt of a halogenated saligenin are ground with 9Ao parts of kaolin.

Claims (2)

PATENTANSPRÜCHE: i. Verwendung der halogenierten Saligenine der allgemeinen Formel (von den Substituenten R1, R2, R3 und R4 muB mindestens einer ein Halogenatom sein, die restlichen Substituenten können Wasserstoff, Alkylreste oder Halogenatome bedeuten) in Form ihrer Salze als Schädlingsbekämpfungsmittel. PATENT CLAIMS: i. Use of the halogenated saligenins of the general formula (At least one of the substituents R1, R2, R3 and R4 must be a halogen atom, the remaining substituents can be hydrogen, alkyl radicals or halogen atoms) in the form of their salts as pesticides. 2. Verwendung der halogenierten Saligenine nach Anspruch i als Schädlingsbekämpfungsmittel in Form ihrer Schwermetallsalze.2. Using the halogenated Saligenins according to claim i as pesticides in the form of their heavy metal salts.
DEB16446A 1951-08-24 1951-08-24 Pest control Expired DE876492C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB16446A DE876492C (en) 1951-08-24 1951-08-24 Pest control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB16446A DE876492C (en) 1951-08-24 1951-08-24 Pest control

Publications (1)

Publication Number Publication Date
DE876492C true DE876492C (en) 1953-05-15

Family

ID=6958909

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB16446A Expired DE876492C (en) 1951-08-24 1951-08-24 Pest control

Country Status (1)

Country Link
DE (1) DE876492C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1185772B (en) * 1962-04-16 1965-01-21 American Potash & Chem Corp Preservatives
US3266981A (en) * 1962-04-16 1966-08-16 American Potash & Chem Corp Biologically toxic compositions containing boron-phenol complexes and methods

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1185772B (en) * 1962-04-16 1965-01-21 American Potash & Chem Corp Preservatives
US3266981A (en) * 1962-04-16 1966-08-16 American Potash & Chem Corp Biologically toxic compositions containing boron-phenol complexes and methods

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