DE1013460B - Herbicides - Google Patents

Herbicides

Info

Publication number
DE1013460B
DE1013460B DEF20543A DEF0020543A DE1013460B DE 1013460 B DE1013460 B DE 1013460B DE F20543 A DEF20543 A DE F20543A DE F0020543 A DEF0020543 A DE F0020543A DE 1013460 B DE1013460 B DE 1013460B
Authority
DE
Germany
Prior art keywords
herbicides
plants
weeds
compounds
trichloroacetyl
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.)
Pending
Application number
DEF20543A
Other languages
German (de)
Inventor
Dr Friedrich Muth
Dr Ludwig Eue
Dr Richard Wegler
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Priority to DEF20543A priority Critical patent/DE1013460B/en
Publication of DE1013460B publication Critical patent/DE1013460B/en
Pending 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
    • A01N37/00Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/18Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
    • A01N37/22Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Unkrautvertilgungsmittel Es wurde gefunden, daß Trichloracetylarylamide, die gegebenenfalls im Arylrest substituiert sein können, z. B. durch Chlor- oder/und Nitrogruppen, gegebenenfalls im Gemi.sah mit Streckmitteln und'/oder anderen bekannten Herbiziden in Pulverform oder in wäßri:gen oder öligen Dispersionen, Emulsionen, oder Lösungen hervorragende Unkrautvertilgungsmittel sind. Als Unkräuter im weitesten Sinne sollen Pflanzen gelten, die an Stellen aufwachsen, wo sie unerwünscht sind. Die Vertreter dieser Stoffklasse wirken bereits in niederen Konzentrationen als Kontaktherbizide.Weedkillers It has been found that trichloroacetylarylamides, which may optionally be substituted in the aryl radical, for. B. by chlorine or / and Nitro groups, optionally in the Gemi.sah with extenders and / or other known Herbicides in powder form or in aqueous or oily dispersions, emulsions, or solutions are excellent herbicides. As weeds in the broadest Senses should apply to plants that grow in places where they are undesirable. The representatives of this class of substances are already effective in lower concentrations than Contact herbicides.

Die erfindungsgemäß verwendeten Verbindungen, die nach bekannten Verfahren erhalten werden können (vgl. z. B. Houben-Weyl, »Methoden der organischen Chemie«, 4. Auflage, Bd. 9, S. 610 ff), sind besonders wirksam gegen dikotyle Gewächse, wie Bohnen, Hederich, Senf, Kresse, Disteln, Kreuzkraut, Gänsefuß, Klettenlabkraut, Winden, Vogelmiere, Kamille, Saudistel oder Spörgel, schädigen in höheren Konzentrationen aber auch monokotyle Pflanzen, also Gräser. Die Verbindungen verhalten sich gegenüber Pflanzen ähnlich wie Dinitroorthokresol. Da sie eine selektive Wirkung besitzen, sind sie zur Unkrautvertilgung in Monokotylen-Kulturen, wie Getreide und Grünland, unter weitgehender Schonung der Kulturpflanzen geeignet. Die Vernichtung von Gräsern ist auch möglich, sie erfordert aber eine höhere Konzentration.The compounds used according to the invention, which are prepared by known processes can be obtained (cf. e.g. Houben-Weyl, "Methods of Organic Chemistry", 4th edition, vol. 9, p. 610 ff), are particularly effective against dicotyledonous plants, such as Beans, hederich, mustard, cress, thistles, ragwort, goosefoot, burdock, Bindweed, chickweed, chamomile, saudi thistle or spörgel cause damage in higher concentrations but also monocotyledonous plants, i.e. grasses. The connections behave towards each other Plants similar to dinitroorthocresol. Since they have a selective effect, are they used to kill weeds in monocot crops such as grain and grassland, Suitable with extensive protection of the cultivated plants. The destruction of grasses is also possible, but requires greater concentration.

Die Vernichtung des Unkrautes kann in einem beliebigen Wachstumsstadium erfolgen. Analog zu Dini.troorthokresol erreicht man die beste Wirkung aber bei Anwendung im Jugendstadium der Unkrautpflanzen. Das Unkrautmittel kann zweckmäßig aus einem Gemisch der genannten Verbindungen und einem festen oder flüssigen Streckmittel bestehen, so daß eine gleichmäßige Verteilung gewährleistet ist, wobei der Zusatz bekannter Herbizide möglich oder erwünscht sein kann. Die wäßrigen oder öligen Dispersionen, Emulsionen oder Lösungen können weiter Netzmittel, Emulgatoren oder andere Dispergierhilfsmittel enthalten, um mittels mechanischer Handspritz- oder Sprüheinrichtungen eine gleichmäßige Verteilung oder Besprü'hung und Benetzung zu erreichen. Die erfindungsgemäßen Verbindungen haben einen anderen WIrkungsmec'hanismus als die 2, 4-Dichlorphenoxy-essigsäure und deren verwandte Verbindungen.. Sie wirken als Kontaktherbizide ähnlich wie Dinitroorthokresol und seinen Analogen. Gegenüber den letztgenannten Verbindungen haben sie den Vorteil, keine Hauttoxizität zu besitzen und nicht färbend zu wirken. Außerdem sind sie im Gegensatz zu Dinitroorthokresol nicht feuergefährlich. Beispiel Trichloracetyl-3, 4-dichlorphenylamid vernichtet in 0,05°/oiger Emulsion, die unter Zusatz eines Emulgators und eines Lösungsmittels hergestellt wurde, bei einem gemischten Aufwuchs von Getreide (Hafer, Weizen, Gerste) und breitblättrigen Unkräutern (wie z. B. Hederich, Gänsefuß, Senf, Disteln oder Spörge:l) bei einer Aufwandmenge von 10001/ha die Unkräuter, ohne das Getreide zu sehädi.gen.The destruction of the weeds can take place at any stage of growth take place. Analogous to Dini.troorthokresol, however, the best effect is achieved with Use in the youth stage of the weed plants. The weed remedy can be expedient from a mixture of the compounds mentioned and a solid or liquid extender exist, so that an even distribution is guaranteed, with the addition known herbicides may be possible or desirable. The aqueous or oily dispersions, Emulsions or solutions can also contain wetting agents, emulsifiers or other dispersing aids included, in order to achieve an even To achieve distribution or spraying and wetting. The compounds according to the invention have a different mechanism of action than 2,4-dichlorophenoxyacetic acid and their related compounds .. They act as contact herbicides similar to dinitroorthocresol and its analogues. Compared to the last-mentioned compounds, they have the advantage have no skin toxicity and do not have a coloring effect. They are also in In contrast to dinitroorthocresol, not flammable. Example trichloroacetyl-3, 4-dichlorophenylamide destroys in 0.05% emulsion, with the addition of an emulsifier and a solvent was prepared in a mixed growing of cereals (Oats, wheat, barley) and broad-leaved weeds (such as hederich, goose foot, Mustard, thistle or spörge: l) at an application rate of 10001 / ha the weeds, without seeing the grain.

EntsprechendeE rgebnis se werden erhalten, wenn man als Wirkstoff die folgendem. Verbindungen verwendet: a)-Trichloracetyl-2, 3, 4, 6-Tetrachlorphenylamid, co-Trichloracetyl-2, 3, 4, 5, 6-Pentachlorphenylamid, co-Trichloracetyl-ß-Naphthylamid oder co-Tri-chlora-cetyl-x-I\Tap'hthylamid.Corresponding results are obtained when using as an active ingredient the following. Compounds used: a) -Trichloroacetyl-2, 3, 4, 6-tetrachlorophenylamide, co-trichloroacetyl-2, 3, 4, 5, 6-pentachlorophenylamide, co-trichloroacetyl-β-naphthylamide or co-tri-chloro-cetyl-x-I \ Tap'hthylamid.

Claims (1)

PATENTANSPRUCH: Unkrautvertilgungsmittel, enthaltend Trichloracetylarylamid. PATENT CLAIM: Weedkillers containing trichloroacetylarylamide.
DEF20543A 1956-06-16 1956-06-16 Herbicides Pending DE1013460B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF20543A DE1013460B (en) 1956-06-16 1956-06-16 Herbicides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF20543A DE1013460B (en) 1956-06-16 1956-06-16 Herbicides

Publications (1)

Publication Number Publication Date
DE1013460B true DE1013460B (en) 1957-08-08

Family

ID=7089722

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF20543A Pending DE1013460B (en) 1956-06-16 1956-06-16 Herbicides

Country Status (1)

Country Link
DE (1) DE1013460B (en)

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