CH228387A - Methods of combating nematodes. - Google Patents
Methods of combating nematodes.Info
- Publication number
- CH228387A CH228387A CH228387DA CH228387A CH 228387 A CH228387 A CH 228387A CH 228387D A CH228387D A CH 228387DA CH 228387 A CH228387 A CH 228387A
- Authority
- CH
- Switzerland
- Prior art keywords
- radicals
- compound
- nematodes
- methods
- general formula
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION 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
- A01N47/00—Biocides, 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
- A01N47/08—Biocides, 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
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION 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
- A01N47/00—Biocides, 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
- A01N47/08—Biocides, 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
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/12—Carbamic 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
- A01N47/14—Di-thio analogues thereof
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
Verfahren zur Bekämpfung von Nematoden. Über die im Erdboden lebenden Nema- toden und ihre Behämpfung liegt ein um fangreiches Schrifttum vor. Eine kurz zu- sammenfaesende Übersicht gibt zum Beispiel Forst Fey in, seinem "Wörterbuch der Un geziefer-, Schädlings- und Pflanzenkrank- heits-Bekämpfung", 2. Auflage 1989, Seite 157-158.
Befallen werden zum Beispiel Kartoffeln, Rüben, Getreidle, Klee, Erbsen, Bohnen, Gurken, Tomaten, Zwiebeln, Erd beeren, Tulpen, Chrysanthemen, Narzissen und andere Gewächse. Der Befall wirkt sich in einem Dahinsiechen. der Pflanzen, das zu ihrem Absterben führen kann, bezw. in ver minderten Ernteerträgen aus.
Es besteht daher das Bedürfnis nach einem guten und unschädlichen Nematodenbekämpfungsmittel. Es wurde nun gefunden, dass Verbindun gen, die den Rest der allgemeinen Formel
EMI0001.0022
enthalten, in welcher R" einen organischen Rest bedeutet, sich in hervorragendem Masse zur Bekämpfung der Nematoden eignen.
Vorzugsweise verwendet man Verbindun- gen der allgemeinen Formel
EMI0001.0031
in der R, R' und R" organische Reste be deuten, die Alkyl-, Aryl oder Amalkylreste sein können. Man kann aber auch Verbin dungen der allgemeinen Formell,
EMI0001.0040
verwenden, in welcher R' und R" wiederum organisclhe Reste bedeuten.
Verbindungen, die bei dem. erfindungs gemässen Verfahren zur Verwendung kom men können, .sind-leispielsweise: Dimethyl-- dithiocarbaminsäuremeth@ylester, Dimethyl - dithiocarbamin!säureallyleSter, Diäthylditb:io- carbamins@äuremethyllester, Dimethyldithio- carbamimsä;
urebenzylester, [email protected] thioca.rbamin6äurearalkylester. Sie können in- Lösung, Emulsion oder in festem Zu stand verwendet und mit Verdünnungs-, Streck- oder Düngemitteln auf :die Gebrauchs konzentration gebracht werden.
Die Mittel können vor, während oder nach der Anssaat bezw. dem Einsetzen der Pflanzen in den Boden gebracht werden, .loch lassen sich in vielen Fällen mit Vorteil auch die Samen, Knohlen oder Pflanzen selbst mit ihnen behandeln. Zwar sind einige Körper dieser Klaese zur Bekämpfung von gewissen Insekten und Pilzen bekannt, doch lässt sich :aus, dieser spezifischen Wirkung nicht auf ihre überraschenden nematoziden Eigenschaften schliessen.
Auf einem von Nematoden befallenen, ordnungsgemäss vorbehandelten Ackerstück wurden. 100 g/m2 einer Mischung aus 10 Teilen Dimethyl,dithiocarba.minsäure-methyl- ester, 88 Teilen Braunkohlenstaub und 2 Teilen Mineralöl ausgestreut und einge <B>eggt.</B> Kurz darauf wurden die Kartoffeln ausgelegt.
Während der Sommermonate fiel der gesunde und kräftige Wuchs der Pflan zen auf dem. behandelten Stück gegenüber einem daneben liegenden unbehandelten Ackerstück auf. Der Erfolg der Behandlung zeigte sich bei der Ernte darin, da.ss das un behandelte Stück 50 dz/ha, das behandelte aber 204 diz/ha Kartoffeln ergab.
Nach der Behandlung des mit Nema.toden verseuchten Bodens eines, Gurkengewächs- h.auses mit 50 g]m@ einer Miseh,ung mit einem Gehalt von<B>50%</B> Di@methyldithiocarbami@n- säurümethybester konnten völlig älehenfreie Pflanzen herangezogen werden, was sich in einem guten Ernteergebnis auswirkte.
Man hat bereits dithioca.rbaminsaure Salze als Bodenbehandlungsmittel zur Immunisie rung von Pflanzen gegen Rost benutzt. Ini Gegensatz zu den;
Estern besitzen sie aber nur eine sehr geringe Wirkung bei der Ne- matodenbekämpfung. Derivate der Dithio- carbaminsäure und besonders Ester sind weiter zur desinfizierenden, fungiziden, bak teriziden, insekfiziden und sterilisierenden Behandlung in Vorschlag gebracht worden.
Hieraus konnte aber kein Schluss auf nema- tozide Wirkungen der Dithiocarbaminsäure- ester gezogen -erden, da man weder mit den zahlreichen andern Bakteriziden noch mit den üblichen Insektiziden Nemato-den wirk sam bekämpfen. kann.
Das bisher einzig wirk'.lich brauchbare Mittel, der Sehwefe:l- kohlenstoff, hat infolge seiner Brennbarkeit, Explosivität und Giftigkeit schon lange einen Ersatz als wünschenswert erscheinen. lassen. Im übrigen kann man aus der Wir- kuug einer Substanz gegen Pilze oder In sekten, wie zum Beispiel Blattläuse, keines wegs auf ihre nematoziden Wirkungen schliessen.
Methods of combating nematodes. There is extensive literature on the nematodes living in the ground and their control. A brief overview is given, for example, by Forst Fey in his "Dictionary of combating vermin, pests and plant diseases", 2nd edition 1989, pages 157-158.
Potatoes, beets, cereals, clover, peas, beans, cucumbers, tomatoes, onions, strawberries, tulips, chrysanthemums, daffodils and other plants are infected. The infestation results in a wasting away. of plants that can lead to their death, respectively. in reduced crop yields.
There is therefore a need for a good and harmless nematode control agent. It has now been found that compounds which correspond to the remainder of the general formula
EMI0001.0022
contain, in which R "means an organic radical, are outstandingly suitable for combating nematodes.
Compounds of the general formula are preferably used
EMI0001.0031
in which R, R 'and R "denote organic radicals which can be alkyl, aryl or amalkyl radicals. However, compounds of the general formula
EMI0001.0040
use, in which R 'and R "in turn mean organic radicals.
Connections that are used in the. Processes according to the invention can be used, for example: dimethyl-dithiocarbamic acid methyl ester, dimethyl-dithiocarbamic acid all-ester, diethylditb: iocarbamic acid methyl ester, dimethyldithio-carbamic acid;
urebenzylester, [email protected]äurearalkylester. They can be used in solution, emulsion or in solid state and brought up to the usage concentration with diluents, extenders or fertilizers.
The means can bezw before, during or after the sowing. When the plants are set into the ground, they can also be used to treat the seeds, knots or plants themselves with advantage in many cases. Although some of the bodies of this class are known to combat certain insects and fungi, one cannot infer their surprising nematocidal properties from this specific effect.
On a properly pretreated field that was infested with nematodes. 100 g / m2 of a mixture of 10 parts of dimethyl, dithiocarba.mic acid methyl ester, 88 parts of pulverized lignite and 2 parts of mineral oil were spread over and harrowed. Shortly afterwards, the potatoes were laid out.
During the summer months the healthy and vigorous growth of the plants fell on the. treated piece compared to an untreated piece of land lying next to it. The success of the treatment was shown at harvest in that the untreated piece yielded 50 dz / ha, but the treated piece yielded 204 diz / ha of potatoes.
After treating the soil of a cucumber greenhouse contaminated with Nema.toden with 50 g] m @ a mixture with a content of <B> 50% </B> Di @ methyldithiocarbami @ n-acid methyl esters were completely free Plants are used, which resulted in a good harvest result.
One has already used dithioca.rbamic acid salts as soil treatment agents for the immunization of plants against rust. Ini contrast to the;
However, esters have only a very slight effect on nematode control. Derivatives of dithiocarbamic acid and especially esters have been proposed for disinfectant, fungicidal, bactericidal, insecticidal and sterilizing treatment.
From this, however, no conclusion could be drawn about the nematocidal effects of the dithiocarbamic acid esters, since nematodes cannot be effectively combated with either the numerous other bactericides or the usual insecticides. can.
The only really useful means up to now, the sulfuric oil, has long appeared to be a desirable substitute because of its flammability, explosiveness and toxicity. to let. In addition, one cannot in any way infer its nematocidal effects from the action of a substance against fungi or insects, such as aphids.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH228387T | 1942-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH228387A true CH228387A (en) | 1943-08-31 |
Family
ID=4455537
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH228387D CH228387A (en) | 1942-02-26 | 1942-02-26 | Methods of combating nematodes. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH228387A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1062980B (en) * | 1957-10-26 | 1959-08-06 | Schering Ag | Preparations for the control of nematodes |
US2945781A (en) * | 1958-12-12 | 1960-07-19 | Monsanto Chemicals | Method of controlling nematodes employing alkali metal salt of n-(n-propyl) dithiocarbamate |
US3046189A (en) * | 1957-05-18 | 1962-07-24 | Merck Ag E | Nematocidal agents |
DE1139693B (en) * | 1959-12-15 | 1962-11-15 | Schering Ag | Preparations for the control of nematodes |
US3075875A (en) * | 1959-09-24 | 1963-01-29 | Geigy Ag J R | Method for controlling plantparasitic nematodes |
-
1942
- 1942-02-26 CH CH228387D patent/CH228387A/en unknown
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3046189A (en) * | 1957-05-18 | 1962-07-24 | Merck Ag E | Nematocidal agents |
DE1062980B (en) * | 1957-10-26 | 1959-08-06 | Schering Ag | Preparations for the control of nematodes |
DE1080347B (en) * | 1957-10-26 | 1960-04-21 | Schering Ag | Preparations for the control of nematodes |
US2945781A (en) * | 1958-12-12 | 1960-07-19 | Monsanto Chemicals | Method of controlling nematodes employing alkali metal salt of n-(n-propyl) dithiocarbamate |
US3075875A (en) * | 1959-09-24 | 1963-01-29 | Geigy Ag J R | Method for controlling plantparasitic nematodes |
DE1147796B (en) * | 1959-09-24 | 1963-04-25 | Geigy Ag J R | Means for combating plant parasitic nematodes |
DE1139693B (en) * | 1959-12-15 | 1962-11-15 | Schering Ag | Preparations for the control of nematodes |
US3202572A (en) * | 1959-12-15 | 1965-08-24 | Schering Ag | Agent for combating nematodes |
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