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DE1119040B - Acaricide means - Google Patents

Acaricide means

Info

Publication number
DE1119040B
DE1119040B DESCH27198A DESC027198A DE1119040B DE 1119040 B DE1119040 B DE 1119040B DE SCH27198 A DESCH27198 A DE SCH27198A DE SC027198 A DESC027198 A DE SC027198A DE 1119040 B DE1119040 B DE 1119040B
Authority
DE
Germany
Prior art keywords
compounds
methyl
lower alkyl
benzyl
acaricidal agents
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
DESCH27198A
Other languages
German (de)
Inventor
Dr Horst Werres
Dr Alfred Czyzewski
Dr Albert Jaeger
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 Pharma AG
Original Assignee
Schering 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 Schering AG filed Critical Schering AG
Priority to DESCH27198A priority Critical patent/DE1119040B/en
Publication of DE1119040B publication Critical patent/DE1119040B/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
    • A01N47/00Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/10Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
    • A01N47/12Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring

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

Acai`icide' Mittel r. Zur Bekämpfung von pflanzenschädigenden Milben, z. B. der »Roten Spinne«, wurden schon verschiedene chemische Mittel vorgeschlagen" die jedoch oft nur bestimmte Entwcklungsstäd'en abtöten, so daß ein voller Bekämpfungserfolg nicht gewährleistet wird. Insbesondere ist die Anfangswirkung der meisten bekannten Acaricide zu 'gering, -bzw. sie wirken im wesentlichen nur ovicid. Gemäß der vorliegenden Erfindung wurden nun Verbindungen gefunden, die neben guter Pflanzenverträglichkeit eine sehr gute Wirkung gegen sämtliche Entwicklungsstadien der Spinnmilben haben. Es-handelt sich um Verbindungen der Formel in der R1 = Wasserstoff oder einen niederen Alkylrest, R2 = einen niederen Alkylrest, X1 = O oder S, X2 = O oder S, jedoch X1 und X2 nicht beide gleichzeitig = O, R3 = einen gegebenenfalls substituierten, insbesondere chlorsubstituierten Benzyirest bedeutet. Rl R2 xi X: Ra 1. Methyl Methyl O S Benzyl 2. Methyl Methyl O S p-Chlorbenzyl 3. Methyl Methyl S S Benzyl 4. Methyl Methyl S S p-Chlorbenzyl 5. H Methyl O S Benzyl 6. H Methyl O S p-Chlorbenzyl 7. Äthyl Äthyl S S Benzyl Es sind jedoch auch Verbindungen gut wirksam, die am Stickstoff andere Alkylgruppen enthalten.Acai`icide 'means r. To combat mites that are harmful to plants, e.g. B. the "red spider", various chemical agents have already been proposed "which, however, often only kill certain development cities, so that a complete control success is not guaranteed. In particular, the initial effect of most known acaricides is too small or too small essentially only have an ovicidal effect. According to the present invention, compounds have now been found which, in addition to being well tolerated by plants, have a very good action against all stages of development of the spider mites. They are compounds of the formula in which R1 = hydrogen or a lower alkyl radical, R2 = a lower alkyl radical, X1 = O or S, X2 = O or S, but X1 and X2 not both at the same time = O, R3 = an optionally substituted, in particular chlorine-substituted, benzyl radical. Rl R2 xi X: Ra 1. methyl methyl OS benzyl 2. Methyl methyl OS p -chlorobenzyl 3. Methyl Methyl SS Benzyl 4. Methyl Methyl SS p -chlorobenzyl 5. H methyl OS benzyl 6. H methyl OS p -chlorobenzyl 7. Ethyl Ethyl SS Benzyl However, compounds which contain other alkyl groups on the nitrogen are also very effective.

Es ist zwar aus der deutschen Patentschrift 961042 bekannt, daß O- oder S-Phenylester der Carbamidsäure bzw. Monothiocarbamidsäure fungicide und acaricide Wirksamkeit besitzen. Es war jedoch hieraus nicht voraussehbar, daß die Verbindungen der vorliegenden Erfindung eine bessere acaricide Wirkung haben würden, da ja ganz allgemein Voraussagen über biologische Wirkungen selbst bei einer geringfügigen Als besonders gut wirksam haben sich Verbindungen erwiesen, in denen die Substituenten folgende Bedeutung haben: Änderung im Molekül der Wirksubstanz nicht möglich sind. Die deutsche Patentschrift 742185 beschreibt zwar die Verwendung von N-substituierten Dithiocarbamidsäureestern zur Nematodenbekämpfung, jedoch läßt sich hieraus keine acaricide Wirkung ableiten.It is known from German Patent 961 042 that O- or S-phenyl esters of carbamic acid or monothiocarbamic acid have fungicidal and acaricidal activity. It was not foreseeable from this, however, that the compounds of the present invention would have a better acaricidal effect, since very general predictions about biological effects even with a slight one. Compounds in which the substituents have the following meaning have proven to be particularly effective: Change are not possible in the molecule of the active substance. The German patent specification 742185 describes the use of N-substituted dithiocarbamic acid esters for combating nematodes, but no acaricidal effect can be derived from this.

Die erfindungsgemäßen Verbindungen können für sich oder im Gemisch mit anderen Schädlingsbekämpfungsmitteln, z. B. als Suspensionsspritzmittel, Emulsionskonzentrate, Stäubernittel, Lösungen, Aerosole u. a., zubereitet werden. Aus der folgenden Tabelle geht die gute Wirksamkeit der neuen Acaricide hervor: Präparat oho aktive °1o Wirkung nach Anzahl von der obigen Substanz 1 Tag I 3 Tagen 7 Tagen Tabelle Nr. A -1- N L A + N I L I A + N f L E J 0,1 100 100 100 100 100 100 l00 1' 0,04 100 100 100 100 100 100 l00 f 0,1 100 l00 100 100 100 100 100 2- l 0,04 -. 98 95 100 100 100 100 100 0,1 100 -- 100 100 100 100 100 100 3- 0,04 80 70 90 100 100 100 100 ( 0,1 90 90 100 100 100 100 100 4- l 0,04 80 70 90 100 100 100 100 7. 0,1 100 100 100 100 100 100 100 Die Versuche wurden in der Weise durchgeführt, daß mit Tetranychus urticae (Bohnenspinnmilbe) aller Stadien (Adulte (A), Nymphen (N), Larven (L), Sommereier (E) befallene Buschbohnen mit wäßrigen Suspensionen behandelt wurden. Die acaricide Wirkung wurde nach 1, 3 und 7 Tagen bonitiert.The compounds according to the invention can be used alone or in admixture with other pesticides, e.g. B. as suspension sprays, emulsion concentrates, dusts, solutions, aerosols, etc., are prepared. The following table shows the good effectiveness of the new acaricides: Preparation oho active ° 1o effect according to number of the above substance 1 day I 3 days 7 days Table no.A -1- NLA + NILIA + N f LE J 0.1 100 100 100 100 100 100 l00 1 '0.04 100 100 100 100 1 00 100 l00 f 0.1 100 l00 100 100 100 100 100 2- l 0.04 -. 98 95 100 100 100 100 100 0.1 100 - 100 100 100 100 100 100 3- 0.04 80 70 90 100 100 100 100 (0.1 90 90 100 100 100 100 100 4- l 0.04 80 70 90 100 100 100 100 7. 0.1 100 100 100 100 100 100 100 The experiments were carried out in such a way that green beans infected with Tetranychus urticae (bean spider mite) of all stages (adults (A), nymphs (N), larvae (L), summer eggs (E) were treated with aqueous suspensions Rated for 1, 3 and 7 days.

Die obigen Zahlen geben die Ergebnisse aus fünfzehn unter gleichen Bedingungen wiederholten Versuchsreihen an.The above numbers give the results of fifteen under equals Conditions repeated series of tests.

Aus der dänischen Patentschrift 59 412 ist es zwar bekannt, Dithiocarbamidsäureester mit verschiedenen Substituenten, unter anderem den Dimethyldithiocarbamidsäurebenzylester, zur Bekämpfung von Engerlingen heranzuziehen, jedoch war hieraus ein Rückschluß über die Brauchbarkeit dieser Verbindungen zur Bekämpfung von Spinnmilben nicht möglich, da diese sowohl morphologisch als auch physiologisch einer völlig verschiedenen Klasse zuzurechnen sind. Im Gegenteil ist gerade in letzter Zeit wiederholt festgestellt worden, daß verschiedene Milbenarten widerstandsfähig gegen die bekannten Insekticide sind. Es war daher überraschend, daß mit den erfindungsgemäß beanspruchten Verbindungen ein so gut wirksames Acaricid gefunden wurde.From the Danish patent 59 412 it is known to use dithiocarbamic acid esters with various substituents, including the benzyl dimethyldithiocarbamate, to use for the control of white grubs, but this was a conclusion about the usefulness of these compounds for combating spider mites possible because these are completely different both morphologically and physiologically Are assigned to class. On the contrary, it has been stated repeatedly in recent times it has been found that various types of mites are resistant to the known insecticides are. It was therefore surprising that with the compounds claimed according to the invention such an effective acaricide has been found.

Claims (2)

PATENTANSPRÜCHE: 1-. Acaricide Mittel, dadurch gekennzeichnet, daß sie als wirksame Substanz eine oder mehrere Verbindungen der folgenden allgemeinen Formel enthalten in der R1 = Wasserstoff oder niederes Alkyl, R2 = niederes Alkyl, X1 = O oder S, X2 = O oder S, jedoch X' und X2 nicht beide gleichzeitig = O, und R3 = einen gegebenenfalls chlorsubstituierten Benzylrest bedeutet. PATENT CLAIMS: 1-. Acaricidal agents, characterized in that they contain one or more compounds of the following general formula as the active substance in which R1 = hydrogen or lower alkyl, R2 = lower alkyl, X1 = O or S, X2 = O or S, but X 'and X2 not both simultaneously = O, and R3 = an optionally chlorine-substituted benzyl radical. 2. Acaricide Mittel gemäß Anspruch 1, dadurch gekennzeichnet, daß sie im Gemisch mit anderen Schädlingsbekämpfungsmitteln vorliegen. In Betracht gezogene.Druckschriften: Deutsche Auslegeschrift Nr. 1037 753; deutsche Patentschrift Nr. 564 018; Chemisches Zentralblatt" 1953, S. 917; 1942, 1I, S. 1051; Chemical Abstracts, 49 (1955), S. 4224, re. Sp.2. Acaricidal agents according to claim 1, characterized in that they are present in a mixture with other pesticides. Publications considered: German Auslegeschrift No. 1037 753; German Patent No. 564 018; Chemisches Zentralblatt "1953, p. 917; 1942, 11, p. 1051; Chemical Abstracts, 49 (1955), p. 4224, right Sp.
DESCH27198A 1959-12-28 1959-12-28 Acaricide means Pending DE1119040B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH27198A DE1119040B (en) 1959-12-28 1959-12-28 Acaricide means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH27198A DE1119040B (en) 1959-12-28 1959-12-28 Acaricide means

Publications (1)

Publication Number Publication Date
DE1119040B true DE1119040B (en) 1961-12-07

Family

ID=7430705

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH27198A Pending DE1119040B (en) 1959-12-28 1959-12-28 Acaricide means

Country Status (1)

Country Link
DE (1) DE1119040B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4823078B1 (en) * 1969-04-16 1973-07-11

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE564018C (en) * 1931-07-05 1932-11-12 I G Farbenindustrie Akt Ges Preparations for the control of muscids and other insects
DE1037753B (en) * 1956-07-13 1958-08-28 Rohm & Haas Pest repellants

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE564018C (en) * 1931-07-05 1932-11-12 I G Farbenindustrie Akt Ges Preparations for the control of muscids and other insects
DE1037753B (en) * 1956-07-13 1958-08-28 Rohm & Haas Pest repellants

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4823078B1 (en) * 1969-04-16 1973-07-11

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