AT237381B - Methods of combating harmful soil fungi - Google Patents

Methods of combating harmful soil fungi

Info

Publication number
AT237381B
AT237381B AT523162A AT523162A AT237381B AT 237381 B AT237381 B AT 237381B AT 523162 A AT523162 A AT 523162A AT 523162 A AT523162 A AT 523162A AT 237381 B AT237381 B AT 237381B
Authority
AT
Austria
Prior art keywords
sep
soil
methods
soil fungi
combating harmful
Prior art date
Application number
AT523162A
Other languages
German (de)
Inventor
Engelbert Dr Kuehle
Paul-Ernst Dr Frohberger
Walter Dr Zeck
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
Application granted granted Critical
Publication of AT237381B publication Critical patent/AT237381B/en

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  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Processing Of Solid Wastes (AREA)
  • Catching Or Destruction (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Bekämpfung schädlicher Bodenpilze 
1. 3-Dichlorpropen allein oder in Kombination mit 1, 2-Dichlorpropan sowie das unsymmetrische Heptachlorpropan sind schon als Nematizide bekannt. Es ist ferner bekannt, dass Dichlorpropen und Dichlorpropan gegen Bodenpilze praktisch wirkungslos sind, s.   z. B.   die Arbeit von Parris   Soil Fumigants   and their   Use",   in Plant Dis. Rep. 42   [1959], S. 273-278.   



   Es wurde nun gefunden, dass überraschenderweise das Heptachlorpropan neben seiner nematiziden Wirksamkeit auch eine gute Wirkung gegen Bodenpilze besitzt. 



   Die Anwendung des erfindungsgemäss zu verwendenden Mittels erfolgt als Lösung, Emulsion, Suspen-   sion,   als Pulver oder Granulat, indem es mittels geeigneter Bodenbearbeitung in den Boden eingemischt oder auf den Boden aufgebracht wird. In letzterem Falle überlässt man es einer künstlichen Bewässerung oder natürlichen   Niederschlägen,   das Präparat in den Boden einzuwaschen. Das Präparat kann allein oder in Kombination mit andern Pflanzenschutzmitteln, Düngemitteln oder Bodenstrukturverbesserungsmitteln angewendet werden. 



   Beispiel : Durch Hitze sterilisierte Fruhstorfer Einheitserde wurde mit Reinkulturen des Bodenpilzes Fusarium culmorum beimpft. In die beimpfteErde wurde das Präparat in Form eines   streufähigen Pulvers,   das 1% Wirkstoff in einem Talkum-Sand-Gemisch enthielt, der Erde gleichmässig zugemischt. Die Erde wurde in Tontöpfe gefüllt und 14 Tage später mit 10 Erbsen je Topf in fünffache Wiederholung besät. 



  Drei Wochen nach der Aussaat erfolgte die Auszählung der gesunden Pflanzen. Die Zahlen enthält folgende Tabelle. 
 EMI1.1 
 
<tb> 
<tb> 



  Lfd. <SEP> Nr. <SEP> Präparat <SEP> Wirkstoffkonz. <SEP> Anzahl <SEP> gesunder
<tb> im <SEP> Boden <SEP> in <SEP> ppm <SEP> Pflanzen <SEP> in <SEP> 0/0
<tb> 3 <SEP> Wochen <SEP> nach
<tb> der <SEP> Aussaat
<tb> Frustorfer <SEP> Einheitserde, <SEP> sterilisiert
<tb> 1 <SEP> ungebeizt <SEP> - <SEP> 92
<tb> Fruhstorfer <SEP> Einheitserde, <SEP> sterilisiert <SEP> und <SEP> beimpft <SEP> mit <SEP> Fusarium <SEP> culmorum
<tb> 2 <SEP> unbehandelt <SEP> 44 <SEP> 
<tb> 3 <SEP> Heptachlorpropan <SEP> 1 <SEP> 64
<tb> 4 <SEP> 3 <SEP> 54
<tb> 5 <SEP> 10 <SEP> 68
<tb> 6 <SEP> 30 <SEP> 65
<tb> 7 <SEP> 100 <SEP> 98
<tb> 8 <SEP> Dichlorpropen-Dichlorpropan <SEP> 30 <SEP> 46
<tb> 9 <SEP> Vergleichsmittel <SEP> 100 <SEP> 42
<tb> 




   <Desc / Clms Page number 1>
 



  Methods of combating harmful soil fungi
1. 3-dichloropropene alone or in combination with 1,2-dichloropropane and the asymmetrical heptachloropropane are already known as nematicides. It is also known that dichloropropene and dichloropropane are practically ineffective against soil fungi, see Sect. z. B. the work of Parris Soil Fumigants and their Use ", in Plant Dis. Rep. 42 [1959], pp. 273-278.



   It has now been found that, surprisingly, in addition to its nematicidal activity, heptachloropropane also has a good activity against soil fungi.



   The agent to be used according to the invention is used as a solution, emulsion, suspension, powder or granulate by mixing it into the soil or applying it to the soil by means of suitable soil cultivation. In the latter case, it is left to artificial irrigation or natural precipitation to wash the preparation into the soil. The preparation can be used alone or in combination with other plant protection products, fertilizers or soil structure improvers.



   Example: Fruhstorfer standard soil sterilized by heat was inoculated with pure cultures of the soil fungus Fusarium culmorum. The preparation in the form of a scatterable powder, which contained 1% active ingredient in a talc-sand mixture, was evenly mixed into the inoculated soil. The soil was filled into clay pots and, 14 days later, sown with 10 peas per pot, repeated five times.



  The healthy plants were counted three weeks after sowing. The following table contains the figures.
 EMI1.1
 
<tb>
<tb>



  Serial <SEP> No. <SEP> preparation <SEP> active ingredient conc. <SEP> Number of <SEP> healthy
<tb> in <SEP> soil <SEP> in <SEP> ppm <SEP> plants <SEP> in <SEP> 0/0
<tb> 3 <SEP> weeks <SEP> after
<tb> the <SEP> sowing
<tb> Frustorfer <SEP> standard earth, <SEP> sterilized
<tb> 1 <SEP> unpickled <SEP> - <SEP> 92
<tb> Fruhstorfer <SEP> standard soil, <SEP> sterilized <SEP> and <SEP> inoculated <SEP> with <SEP> Fusarium <SEP> culmorum
<tb> 2 <SEP> untreated <SEP> 44 <SEP>
<tb> 3 <SEP> heptachloropropane <SEP> 1 <SEP> 64
<tb> 4 <SEP> 3 <SEP> 54
<tb> 5 <SEP> 10 <SEP> 68
<tb> 6 <SEP> 30 <SEP> 65
<tb> 7 <SEP> 100 <SEP> 98
<tb> 8 <SEP> dichloropropene-dichloropropane <SEP> 30 <SEP> 46
<tb> 9 <SEP> comparison means <SEP> 100 <SEP> 42
<tb>


 

Claims (1)

PATENTANSPRUCH : Verfahren zur Bekämpfung schädlicher Bodenpilze, dadurch gekennzeichnet, dass unsymmetrisches Heptachlorpropan verwendet wird. PATENT CLAIM: Method for combating harmful soil fungi, characterized in that asymmetrical heptachloropropane is used.
AT523162A 1961-07-03 1962-06-29 Methods of combating harmful soil fungi AT237381B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE237381X 1961-07-03

Publications (1)

Publication Number Publication Date
AT237381B true AT237381B (en) 1964-12-10

Family

ID=5903057

Family Applications (1)

Application Number Title Priority Date Filing Date
AT523162A AT237381B (en) 1961-07-03 1962-06-29 Methods of combating harmful soil fungi

Country Status (1)

Country Link
AT (1) AT237381B (en)

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