CH215871A

CH215871A - Pest control methods.

Info

Publication number: CH215871A
Authority: CH
Inventors: Schering-Kahlbaum A G
Original assignee: Schering Kahlbaum Ag
Priority date: 1935-01-09
Filing date: 1936-01-09
Publication date: 1941-07-31

Description

  

  <B>Verfahren zur Schädlingsbekämpfung.</B>    Als überaus     lästige    Schädlinge machen  sich seit langer Zeit Kornkäfer     (calandra          granaria)    und andere Speicherschädlinge, wie  Mehl-, Brot-,     Khapra-    und Maiskäfer be  merkbar,     .die    die Getreidevorräte beider La  gerung stark schädigen können.  



  Diese Schädlinge werden nicht etwa mit  dem vom Felde kommenden     Erntegut    auf die  Speicher eingeschleppt, sondern sie finden  sich als typische     Schädlinge    der Lagerräume  bereits auf diesen vor Einbringen der neuen  Ernte vor. Eine     wirkungsvolle    Bekämpfung  dieser Käfer ist also nur möglich durch eine       Entwesung    der     entleerten    Räume vor der       Einbringung    der neuen     Ernte.     



  Hierzu werden die Räume mit geeigneten  Mitteln, die die     Chitinpanzerung    der Käfer       durehdringen    müssen, behandelt. Die übli  chen Insektizide sind zu diesem Zweck jedoch  nicht     geeignet.     



       Gegenstand    des vorliegenden Patentes ist  nun ein Verfahren zur Schädlingsbekämp  fung, bei dem ein Mittel     verwendet        wird.,    das         sich    für den     genannten    Zweck     besonders    gut  eignet. Es ist dadurch gekennzeichnet, dass  man     wenigstens    ein     chloriertes,        isopropylier-          tes    Phenol, gegebenenfalls zusammen mit  einem Verdünnungsmittel, verwendet.  



  Als     besonders    geeignet erwiesen sieh     ein-          oder        mehrfachchloriertes-        Thymol        bezw.     seine     Isomere,    wie sie zum Beispiel als Ab  fallprodukte bei der     technischen    Herstellung  des     Thymods    anfallen, die gegen die Speicher  schädlinge, wie zum     Beispiel    den     Kornkäfer,     eine     ausgezeichnete        Wirkung    zu entfalten       vermögen.    Auch hat es sich gezeigt,

   dass die       Chlorierungsprodukte    des     isopropylierten          Rohkresols        hervorragend    für den     genannten     Zweck     geeignet    sind.  



  Die     Chlorierungsprodukte    können     mit    den  üblichen     Lösungsmitteln    verdünnt werden  und     gegebenenfalls    zusammen mit andern an  und für sich nicht wirksamen Stoffen zur  Anwendung     gelangen.    So     genügt    es zum Bei  spiel bis 10     Teile    des chlorierten,     isopropy-          lierten        -Phenols,    zum Beispiel     Chloriso-    oder           Dichlorisothymal,    in 90 bis 95 Teilen Pe  troleum oder Erdöldestillaten zu lösen und  etwa<B>10%</B> eines     Emulgators,

      wie zum Bei  spiel     Türkischro@töl,        sulfuriertem    Rizinusöl,       Schwefelsäureester    der Fettalkohole     usw.          hinzuzusetzen,    um ein besonders wirksames  Aufwaschmittel, das in 10 bis 20 %     iger     wässriger Emulsion in einer     Aufwandmenge     von 100 bis; 200 g pro m\     angewand    wird,  zu erhalten.  



       Statt    des Petroleums, oder der Erdöldestil  late können auch andere höher siedende Lö  sungsmittel mit Vorteil verwendet werden.  Ebenso ist es mitunter von Vorteil,     noch    an  Üere     insektizide    Stoffe den Mischungen zu  zusetzen.  



  Gegenüber den bisher im Handel befind  lichen Mitteln haben die im beanspruchten  Verfahren zur Anwendung gelangenden Pro  dukte -den     Vorteil,        @dass    sie sehr wohlfeil und  gegenüber den     Spritzmitteln,    die leichtsie  dende Bestandteile enthalten und bei deren  Anwendung immer mit Feuer- und Explo  sionsgefahr zu     rechnen        ist,    praktisch     unent-          fla,mmbar    sind, was auf     ausgetrockneten     Holzböden besonders wichtig ist.

   Ausserdem  sind sie gegenüber dem häufig     verwandten          Anilinöl    für     Menschen    nicht giftig.



  <B> Method for pest control. </B> For a long time, grain beetles (calandra granaria) and other storage pests such as flour, bread, khapra and corn beetles have been noticeable as extremely annoying pests can cause severe damage.



  These pests are not dragged into the storage areas with the harvested crop coming from the fields, but rather they are found in the storage rooms as typical pests before the new harvest is brought in. An effective control of these beetles is therefore only possible by disinfestation of the emptied rooms before the new harvest is brought in.



  For this purpose, the rooms are treated with suitable means that have to penetrate the chitin armor of the beetles. However, the usual insecticides are not suitable for this purpose.



       The subject of the present patent is a method for pest control in which a means is used. Which is particularly well suited for the purpose mentioned. It is characterized in that at least one chlorinated, isopropylated phenol is used, optionally together with a diluent.



  Proven to be particularly suitable see mono- or polychlorinated thymol respectively. its isomers, such as those obtained as waste products in the technical production of thymod, which are able to develop an excellent effect against storage pests such as the grain beetle. It has also been shown

   that the chlorination products of isopropylated crude cresol are excellently suited for the purpose mentioned.



  The chlorination products can be diluted with the usual solvents and, if appropriate, be used together with other substances which are in and of themselves inactive. For example, it is sufficient to dissolve up to 10 parts of the chlorinated, isopropylated phenol, for example chloroiso- or dichloroisothymal, in 90 to 95 parts of petroleum or petroleum distillates and about <B> 10% </B> of an emulsifier,

      such as turkey oil, sulfurized castor oil, sulfuric acid esters of fatty alcohols, etc. to add a particularly effective detergent, which is in 10 to 20% aqueous emulsion in an application rate of 100 to; 200 g per square meter is used.



       Instead of petroleum or petroleum distillates, other higher-boiling solvents can also be used with advantage. It is also sometimes advantageous to add insecticidal substances to the mixtures.



  Compared to the previously commercially available agents, the products used in the claimed process have the advantage that they are very cheap and that they are very cheap compared to the sprays that contain light-emitting ingredients and when they are used, there is always a risk of fire and explosion is, practically indispensable, which is particularly important on dried out wooden floors.

   In addition, they are not toxic to humans compared to the frequently used aniline oil.

Claims

PATENT CLAIM: Method for pest control, in particular the gom beetle and other storage pests, characterized by the use of at least. a chlorinated isopropylated phenol as an insecticidal agent. SUBCLAIMS: 1.

Process according to patent claim, characterized in that the isopropylated phenol is used together with at least one diluent: 2. Process according to patent claim, characterized in that a chlorinated and isopropylated cresal is used as the chlorinated and isopropylated phenol. 3.

Method according to claim and dependent claim 2, characterized in that a chlorinated isothymol is used as the chlorinated and isopropylated cresal. 4. The method according to claim and dependent claims 2 and 3, characterized in that a monachloroisothymol is used all chlorinated and isopropylated cresol. 5.

Process according to patent claim and dependent claims 2 and 3, characterized in that a dichloroisothymol is used as the chlorinated and isopropylated cresol. 6. The method according to claim and dependent claim 2, characterized in that the chlorinated and isopropylated phenol used is a chlorination product of isopropylated crude cresol. 7th

Process according to claim, characterized in that other insecticides are also used. B. The method according to claim and dependent claims 2 and 7, characterized in that one. also used other insecticides. 9. The method according to claim and dependent claims 2, 3 and 7, characterized by the fact that other insecticides are also used. 10.

Method according to patent claim and dependent claims 2, 3, 4 and 7, characterized in that other insecticides are also used. 11. The method according to claim and dependent claims 2, 3, 5 and 7, characterized in that one also uses other insecticides. 12. The method according to claim and dependent claims 2, 6 and 7, characterized in that one also uses other insecticides. 13th

Method according to claim and dependent claim 1, characterized in that emulsifying agents are also used. 14. The method according to claim and dependent claims 1, 2 and 13, characterized in that emulsifying agents are also used. 15th

Method according to patent claim and sub-claims 1, 2, 3 and 13, characterized in that emu-inhibiting agents are also used. 16. The method according to claim and dependent claims 1, 2, 3, 4 and 13, characterized in that emulsifying agents are also used. 17th

Process according to patent claim and sub-claims 1, 2, 3, 5 and 13, characterized in that emulsifying agents are also used. 18. The method according to claim and dependent claims 1, 2, 6 and 13, characterized in that emulsifying agents are also used. 19th

A method according to claim and dependent claims 1, 7 and 13, characterized in that other insecticides and emulsifiers are also used. 20. The method according to claim and dependent claims 1, 2, 7 and 13, characterized in that one also uses other In secticides and emulsifiers. 21st

Process according to patent claim and dependent claims 1, 2, 3, 7 and 13, characterized in that other insecticides and emulsifiers are also used. 22. The method according to patent claim and dependent claims 1, 2, 3, 4, 7 and 13, characterized in that other insecticides and emulsifiers are also used. 23.

Process according to patent claim and sub-claims 1, 2, 3, 5, 7 and 13, characterized in that other insecticides and emulsifiers are also used. 24. The method according to claim and dependent claims 1, 2, 6, 7 and 13, characterized in that other insecticides and emulsifiers are also used. 25th

Process according to claim and dependent claim 1, characterized in that 5 to 10 parts of the chlorinated isopropylated phenol are used dissolved in 90 to 95 parts of a diluent. 26. The method according to claim and dependent claims 1 and 25, characterized in that about 10 parts of an emulsifier are also used. 27.

Process according to patent claim and dependent claims 1, 25 and 26, characterized in that the emulsifier used is Türkischrotäl. 28. The method according to claim and dependent claims 1, 25 and 26, characterized in that as. Emulsifier sulphurized mzinus oil is used. '29.

Process according to patent claim and dependent claims 1, 25 and 26, characterized in that a fatty alcohol-sulfuric acid ester is used as the emulsifier. 30. The method according to claim and dependent claim 1, characterized in that a petroleum distillate is used as the diluent. 31. The method according to claim and dependent claims 1 and 30, characterized in that petroleum is used as the diluent. 32.

Process according to claim and dependent claims 1 and 25, characterized in that other insecticides are also used. 33. The method according to patent claim and dependent claims 1, 25 and 26, characterized in that other insecticides are also used.