DE1019123B - Combating nematodes - Google Patents

Combating nematodes

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Publication number
DE1019123B
DE1019123B DEF14465A DEF0014465A DE1019123B DE 1019123 B DE1019123 B DE 1019123B DE F14465 A DEF14465 A DE F14465A DE F0014465 A DEF0014465 A DE F0014465A DE 1019123 B DE1019123 B DE 1019123B
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ncs
coo
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Dr Werner Meiser
Dr Bernhard Homeyer
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Bayer AG
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Bayer AG
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    • 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
    • A01N47/40—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 a double or triple bond to nitrogen, e.g. cyanates, cyanamides
    • A01N47/48—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 a double or triple bond to nitrogen, e.g. cyanates, cyanamides containing —S—C≡N groups

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  • 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

Bekämpfung von Nematoden In der Nematodenbekämpfung sind bisher im wesentlichen Mittel verwendet worden, die in der Gasphase wirken. So wurden z. B. das DD (Dichlorpropan/Dichlorpropylen), Methylbromid, Äthylenbromid und Chlorpikrin für diesen Zweck verwandt. -Diese Verbindungen müssen auf kompliziertem Wege in den Boden gebracht werden, wie z. B. durch Injektion oder durch Gelatinekapseln, die in bestimmten Abständen in den Boden gebracht werden, oder aber man muß den Boden mit Zeltplanen abdecken und darunter den Wirkstoff vergasen.Control of nematodes In the control of nematodes are so far in essential means have been used which act in the gas phase. So were z. B. the DD (dichloropropane / dichloropropylene), methyl bromide, ethylene bromide and chloropicrin used for this purpose. -These connections have to be in a complicated way in brought to the ground, such as B. by injection or by gelatin capsules, which are brought into the ground at certain intervals, or you have to Cover the ground with tarpaulin and gas the active ingredient underneath.

Es ist weiterhin bekannt, daß Rhodanverbindungen auf viele Arten von Schädlingen toxisch wirken. Ferner ist bekannt, daß man bestimmte Benzylrhodanide, die die Rhodangruppe auch in einer aliphatischen Seitenkette enthalten können, für die Nematodenbekämpfung verwenden kann. Diese Verbindungen haben jedoch eine schlechte Pflanzenverträglichkeit.It is also known that rhodan compounds in many types of Toxic to pests. It is also known that certain benzyl rhodanides, which can also contain the rhodan group in an aliphatic side chain, for which can use nematode control. However, these connections have a bad one Plant compatibility.

Es wurde nun gefunden, daß sich aliphatische Rhodanverbindungen bzw. Rhodancarbonsäureester zur Bekämpfung von Nematoden eignen und daß sie in sehr einfacher Weise eingesetzt werden können. Sie sind teils bekannt, teils können sie nach bekannten Methoden der organischen Chemie aus den entsprechenden Halogenverbindungen leicht hergestellt werden. Sie haben eine hohe nematicide Wirkung, die sich nicht voraussehen ließ. Die Verbindungen lösen sich meist in den wirksamen Konzentrationen in Wasser oder können mit Hilfe eines Emulgators in Lösung gebracht werden. Mit diesen Lösungen bzw. Emulsionen kann dann- einfach der Boden begossen und durchtränkt werden, oder die Lösungen können auf die zu behandelnden Pflanzen verspritzt werden. Es versteht sich von selbst, daß die Verbindungen auch unter Zusatz von Netz-, Haft- und Dispergiermitteln zu Spritz- und Stäubemitteln verarbeitet werden können, Geeignete Rhodanverbindungen sind z. B. Rhodanessigsäuremethylester, -äthylester, -propylester, -isopropylester, -butylester, -isobutylester, -tert. butylester, -pentylester, -isoamylester, -hexylester, -isohexylester, -oktylester, -isooktylester, -nonylester, -isononylester, -decylester, -dodecylester, -cetylester, -oleylester, -ß-halogenäthylester, -ß-halogenpropylester, -y-halogenpropylester, -d-halogenbutylester, -ß-trichloräthylester, Rhodanessigsäure-phenylester, -p-chlorphenylester, -3, 4-dichlorphenylester, -naphthylester, -benzylester, -cyclopentylester, -cyclohexylester, und die entsprechenden Thioester; a-Rhodanpropionsäure-methylester, -äthylester, -propylester, -isopropylester, -butylester, -isobutylester, -phenylester, und die entsprechenden Thioester; a-Rhodanß-chlorpropionsäure-äthylester, -ß-Rhodänpropionsäuremethylester, -äthylester, -propylester, -isopropylester, -butylester, -isobutylester, tert. Butylester, -p-chlorphenylester und die entsprechenden Thioester; die a-Rhodanbuttersäureester und -thioester, die ß-Rhodanbuttersäureester und -thioester, die y-Rhodanbuttersäureester und -thioester, die a- und ß-Rhodanisobuttersäureester und -thioester, die a, ß, y- und b-Rhodanvaleriansäureester und -thioester, die a, ß- und y-Rhodanisovaleriansäureester und -thioester, die Rhodankapronsäureester, die Rhodanlaurinsäureester und -thioester, die Essigsäure-2-rhodanäthylester, -3-rhodanpropylester, -4-rhodanbutylester und -thioester, die Propionsäurerhodanäthylester, die Buttersäurerhodanpropylester und -thioester, die Rhodanacetylcarbamidsäureester, die N-Rhodanalkylcarbamidsäureester, Rhodanmalonester, Rhodancyanessigester, Rhodanacetylcyanessigester, Rhodanpropionylcyanessigester, Rhodanacetylmalonester, Rhodanbernsteinsäureester, y-Rhodan-a-acetylbuttersäureäthylester, Alkylrhodanide, y-Chlorpropylrhodanid, Halogenbutylrhodanide, Rhodanessigsäureamide, Rhodanalkylennitrile, y-Rhodanbutyronitril, Alkylendirhodanide, Bis-(ß-rhodanäthyl)-bisulfid, Glycerindirhodanide, Glycerintrirhodanid, Rhodanketone, Rhodanacetoxim, y-Methylsulfonpropylrhodanid, ß-Rhodantrimethylendiamin, Diäthylrhodanamine; 2-Rhodanacetylthiophen, N-(ß-rhodanäthyl)-phthalimid, N-(ß- und y-rhodanpropyl)-phthalimid, y-Rhodanpropylenoxyd, (ß-Rhodanäthylphenyläther, y-Rhodanpropylphenyläther), Rhodanäthylphenylketon. Die Verbindungen sind gut pflanzenverträglich.It has now been found that aliphatic rhodan compounds or rhodanecarboxylic acid esters are suitable for combating nematodes and that they can be used in a very simple manner. Some of them are known, and some can easily be prepared from the corresponding halogen compounds by known methods of organic chemistry. They have a high nematicidal effect that could not be foreseen. The compounds usually dissolve in the effective concentrations in water or can be brought into solution with the help of an emulsifier. The soil can then simply be watered and soaked with these solutions or emulsions, or the solutions can be sprayed onto the plants to be treated. It goes without saying that the compounds can also be processed into spray and dusting agents with the addition of wetting agents, adhesives and dispersants. B. Rhodanessigsäuremethylester, -äthylester, -propylester, -isopropylester, -butylester, -isobutylester, -tert. butyl ester, pentyl ester, isoamyl ester, hexyl ester, isohexyl ester, octyl ester, isooctyl ester, nonyl ester, isononyl ester, decyl ester, dodecyl ester, cetyl ester, oleyl ester, β-haloethyl ester, -ß-halopropyl ester, -y -halopropyl ester, -d-halobutyl ester, -ß-trichloroethyl ester, phenyl rhodanacetate, p-chlorophenyl ester, -3, 4-dichlorophenyl ester, naphthyl ester, benzyl ester, cyclopentyl ester, cyclohexyl ester, and the corresponding thioester; a-Rhodanpropionic acid methyl ester, ethyl ester, propyl ester, isopropyl ester, butyl ester, isobutyl ester, phenyl ester, and the corresponding thioesters; a-Rhodanß-chloropropionic acid ethyl ester, -ß-Rhodänpropionäuremethylester, -äthylester, -propylester, -isopropylester, -butylester, -isobutylester, tert. Butyl esters, p-chlorophenyl esters and the corresponding thioesters; the a-rhodan butyric acid esters and thioesters, the ß-rhodan butyric acid esters and thioesters, the y-rhodan butyric acid esters and thioesters, the a- and ß-rhodanisobutyric acid esters and thioesters, the a, ß, y- and b-rhodan valerate esters and thioesters, the α, β- and γ-rhodanisovaleric acid esters and thioesters, the rhodanic caproic acid esters, the rhodanic lauric acid esters and thioesters, the 2-rhodanethyl acetate, -3-rhodanopropyl ester, -4-rhodanobutyl ester and thioester, the rhodanopropyl propionate, the rhodanopropyl acetate that Rhodanacetylcarbamidsäureester, the N-Rhodanalkylcarbamidsäureester, Rhodanmalonester, Rhodancyanessigester, Rhodanacetylcyanessigester, Rhodanpropionylcyanessigester, Rhodanacetylmalonester, Rhodanbernsteinsäureester, y-thiocyanate-a-acetylbuttersäureäthylester, Alkylrhodanide, y-Chlorpropylrhodanid, Halogenbutylrhodanide, Rhodanessigsäureamide, Rhodanalkylennitrile, y-Rhodanbutyronitril, Alkylendirhodanide, bis ( ß-rhodanethyl) bisulfide, G. lycerin dirhodanide, glycerintrirhodanid, rhodanketone, rhodanacetoxime, γ-methylsulfonpropylrhodanide, ß-rhodanrimethylenediamine, diethylrhodanamine; 2-Rhodanacetylthiophene, N- (ß-rhodanäthyl) -phthalimid, N- (ß- and y-rhodanopropyl) -phthalimide, y-rhodanopropylene oxide, (ß-Rhodanäthylphenyläther, y-Rhodanpropylphenyläther), Rhodanäthylphenylketon. The compounds are well tolerated by plants.

Beispiel Im Blockschälchenversuch werden Lösungen der angegebenen Präparate von einer Konzentration von 0,1 und 0,010/, gegeben. In diese Blockschälchen werden etwa 100 bis 200 Nematoden der Art Ditylenchus dipsaci, Aphelenchoides ritzemabosi, Anguina tritici und Larven von Heterodera schachtii gegeben. Nach einem Bad von 1 bis 2 Tagen wird jeweils die Zahl der inaktiven Nematoden festgestellt. Alle Proben, in denen die Nematoden 100°/oig inaktiv sind, werden im Fluoreszenztest auf ihren Lebenszustand untersucht. Die erzielten Ergebnisse im Fluoreszenztest mit verschiedenen Rhodanverbindungen werden in folgender Tabelle zusammengefaBt: zahl der inaktiven Nematoden in °/o Präparat Konzen- tration Anguina I Heterodora Aphelen- Ditylenchus tritici schachtii choides dipsaci N CS # C H2 . C O O CH3 0,10/0 - 100 °/0/1 Tag 100 °/0/1 Tag 100 °/0/1 Tag N C S - CH, - C O 0 C2 H5 0,1 ° /o - 100 ° jo/1 Tag 1000/,/l Tag 100 °j0/1 Tag 0,01 °jo - 1000/,/l Tag 100 l)/,/l Tag 100 °/0/1 Tag N C S - C H2 # C O 0 C3 H7 0,10/, - 100 °/0/1 Tag 100 °/0/1 Tag 100 °/0/1 Tag N C S - CH, - C O O C4 H o 0,10/, - 100 °/,/l Tag 100 °/0/1 Tag 100 °/o171 Tag N C S - CH, - C 0 O C5 H11 (iso) 0,10/, - 100 °/0/2 Tage 100 °/0/1 Tag 100 °/0/1 Tag N C S - C H2 - C 0 O C., H13 (iso) 0,10/, 100 °/0/2 Tage 70 °/0/2 Tage - 100 °,l0/2 Tage N C S - CH, - C 0 0 C$ Hl, 0,10/0 100 °/0/1 Tag 100 °/0/1 Tag - 100 °/0/2 Tage N CS # C H2 - C O O C12 H25 0,10/0 100 °/0/1 Tag 90 °/0/2 Tage - 100 °/0/2 Tage 0,010/, 80 °/0/2 Tage 10 °/0/2 Tage - 90 °/0/2 Tage N CS # CH, # C O 0 - CH, - CH, - Cl 0,10/0 100 °/0/2 Tage 100 °/0/1 Tag - 1000/0/1 Tag N C S - CH, - C O 0 (CH,), # Cl 0,10/, 100 °/0/2 Tage 100 °/0/2 Tage - 100 °/0/2 Tage N C S - C H2 # C O O - C H2 # C C13 0,10/0 901)/,/2 Tage 90 °/0/2 Tage - 90 °/0/2 Tage N C S - CH2 - C O S - C H (C H3) 2 0,10/0 100 °/0/2 Tage 100 °/0/2 Tage - 100 °/0/2 Tage C O O # C2 H5 0,10/, - 100 °/0/2 Tage 100 °/0/1 Tag 60 010/2 Tage CH-SCN C00 # C2H5 C H3 - C 0 O (C H2)4 S C N 0,10/, 100 °/0/2 Tage 80 0/0/2 Tage - 100 °/0/2 Tage C12 H25 S C N 0,10/0 100 °/0/2 Tage , 80 0/0/2 Tage 100 °l0/2 Tage - N C S - C H2 - C O O .@ 0,20/, 100 °/0/2 Tage 1 80 0/0/2 Tage - 90 °/0/2 Tage 0,10/, 100 °/0/2 Tage - - - NCS # CH2 # COS -; " 0,1 °/0 80 °/0/2 Tage ` 100 °/0/2 Tage - 100 °/0%2 Tage ;H, I N C S - C H2 # C H2 C O 0 C2 H5 0,10/0 - 100 °/0/1 Tag 100 °/0/l Tag 100 °/0/1 Tag 0,010/0 - 50 °/0J2 Tage 100 °/0/1 Tag - NCS - CH2 . CH2 # COOC4H° 0,10/0 100°/0/1 Tag 1001/o/2 Tage - 100°/0/2 Tage 2 C H2 C O O C 8 Hl l 0,10/0 100 °/0,l2 Tage 20 °/0/2 Tage - 20 °/0/2 Tage N C S - CH 0,010/, 90 °/0/2 Tage - - ( - NCS (CH2)3 - COO - C,H5 0,10/, 100 °/0/1 Tag 1000/0/2 Tage - f 100 °/0/2 Tage N C S (C H2) 4 . C O O - C2 H5 0,10/, 100 °/0/1 Tag 100 °%/2 Tage - 100 °/0/1 Tag NCS(CH2)s - COO . C2H5 0,1°/o 90°/0/2 Tage 100°/0/2 Tage - 100°/0/1 Tag /1 Tag N C S # C H # C O O . C2 H5 0,1 °/0 100 °/0/1 Tag 100 0/0/2 Tage - 1000/0 CH2 - Cl N C S - (C H2) s N H # C O O - C2 H5 0,10/0 100 °/0/2 Tage ; 90 0/0/2 Tage - 100 °jo/ l Tag NCS # CH, # CH2 - CH2 # Cl - 0,10/0 100 °/0/1 Tag 100 °/,/l Tag - 100 °7'0/l Tag 0,010/, 100 °/0/2 Tage 90 0%/2 Tage - 90 °/0/1 Tag N C S - C H2 # C H2 - CH, - C H2 - Br 0,10/, 100 °/0/2 Tage li 90 °/0l2 Tage - 100 0/"/'l Tag NCS - CH2 - CH2 . CH2 - CN 0,10/, 90 °/0/2 Tage i 100 °/0/1 Tag - 951)/0/2 Tage N C S - C H2 . CH, - 0 , 0,10/, 98 o/0/2 Tage 100 °/0/2 Tage - 100 °1o12 Tage 0,01 °/o - - - 100 °/0/2 Tage Konzen- Zahl der inaktiven Nematoden in % Präparat tration Anguina Heterodora Aphelen- @ Ditylenchus tritici schachtii choides dipsaci N C S (C H2) 3 - S C N 0,10/0 100 0/0/1 Tag 100 0/0(1 Tag - 1000/,/l Tag 0,010/0 - 80 0/0/2 Tage 100 0/0/2 Tage 80 0/0/2 Tage N C S (C H2)4 - S C N 0,10/0 - 100 0/0/1 Tag 95 0/0/2 Tage 100 0/0/1 Tag 0,010/0 - 90 0/0/2 Tage 100 0/0/2 Tage 50 0/0/2 Tage N C S (C H,)" - S CN 0,10/0 - 100 0/0/1 Tag 100 0/0/1 Tag 100 0/0/1 Tag 0,010/0 - 100 0/0/2 Tage 100 0/0/1 Tag 80 0/0/2 Tage NCS-CH2CH2\ O 0,10/0 - 100 0/0/1 Tag 100 0/0/2 Tage 92 0/0/2 Tage N C S - C H2 C H2 / 0,010/0 - 80 0/0/2 Tage 95 0/0/2 Tage 30 0/0/2 Tage N C S - (C H2)4 - Cl 0,10/0 - 100 0/0/1 Tag 100 0/0/1 Tag 100 0/0/2 Tage 0,010/0 - 100 0/0/2 Tage 100 0/0/2 Tage 100 0/0/2 Tage N C S - C H2 - C H2 - C N 0,10/0 - 100 0/0/1 Tag 100 0/0/1 Tag 100 0/0/2 Tage 0,010/0 - 100 0/0/1 Tag - - N C S - (C H2) i0 - C O O H 0,10/0 - 100 0/0/1 Tag 100 0/0/1 Tag 100 0/0/1 Tag Example In the block dish experiment, solutions of the specified preparations with a concentration of 0.1 and 0.010 /, are given. About 100 to 200 nematodes of the species Ditylenchus dipsaci, Aphelenchoides ritzemabosi, Anguina tritici and larvae of Heterodera schachtii are placed in these block bowls. After bathing for 1 to 2 days, the number of inactive nematodes is determined. All samples in which the nematodes are 100% inactive are examined for their state of life in a fluorescence test. The results obtained in the fluorescence test with various rhodan compounds are summarized in the following table: number of inactive nematodes in ° / o Preparation concentrate tration Anguina I Heterodora Aphelen- Ditylenchus tritici schachtii choides dipsaci N CS # C H2. COO CH3 0.10 / 0 - 100 ° / 0/1 day 100 ° / 0/1 day 100 ° / 0/1 day NCS - CH, - CO 0 C2 H5 0.1 ° / o - 100 ° jo / 1 day 1000 /, / l day 100 ° j0 / 1 day 0.01 ° jo - 1000 /, / l day 100 l) /, / l day 100 ° / 0/1 day NCS - C H2 # CO 0 C3 H7 0.10 /, - 100 ° / 0/1 day 100 ° / 0/1 day 100 ° / 0/1 day NCS - CH, - COO C4 H o 0,10 /, - 100 ° /, / l day 100 ° / 0/1 day 100 ° / o171 day NCS - CH, - C 0 O C5 H11 (iso) 0.10 /, - 100 ° / 0/2 days 100 ° / 0/1 day 100 ° / 0/1 day NCS - C H2 - C 0 O C., H13 (iso) 0.10 /, 100 ° / 0/2 days 70 ° / 0/2 days - 100 °, 10/2 days NCS - CH, - C 0 0 C $ Hl, 0.10 / 0 100 ° / 0/1 day 100 ° / 0/1 day - 100 ° / 0/2 days N CS # C H2 - COO C12 H25 0.10 / 0 100 ° / 0/1 day 90 ° / 0/2 days - 100 ° / 0/2 days 0.010 /, 80 ° / 0/2 days 10 ° / 0/2 days - 90 ° / 0/2 days N CS # CH, # CO 0 - CH, - CH, - Cl 0.10 / 0 100 ° / 0/2 days 100 ° / 0/1 day - 1000/0/1 day NCS - CH, - CO 0 (CH,), # Cl 0.10 /, 100 ° / 0/2 days 100 ° / 0/2 days - 100 ° / 0/2 days NCS - C H2 # COO - C H2 # C C13 0.10 / 0 901) /, / 2 days 90 ° / 0/2 days - 90 ° / 0/2 days NCS - CH2 - COS - CH (C H3) 2 0.10 / 0 100 ° / 0/2 days 100 ° / 0/2 days - 100 ° / 0/2 days COO # C2 H5 0.10 /, - 100 ° / 0/2 days 100 ° / 0/1 day 60 010/2 days CH-SCN C00 # C2H5 C H3 - C 0 O (C H2) 4 SCN 0.10 /, 100 ° / 0/2 days 80 0/0/2 days - 100 ° / 0/2 days C12 H25 SCN 0.10 / 0 100 ° / 0/2 days, 80 0/0/2 days 100 ° l0 / 2 days - NCS - C H2 - COO. @ 0.20 /, 100 ° / 0/2 days 1 80 0/0/2 days - 90 ° / 0/2 days 0.10 /, 100 ° / 0/2 days - - - NCS # CH2 # COS -; "0.1 ° / 0 80 ° / 0/2 days` 100 ° / 0/2 days - 100 ° / 0% 2 days ;H, I. NCS - C H2 # C H2 CO 0 C2 H5 0.10 / 0 - 100 ° / 0/1 day 100 ° / 0 / l day 100 ° / 0/1 day 0.010 / 0 - 50 ° / 0J2 days 100 ° / 0/1 day - NCS - CH2. CH2 # COOC4H ° 0.10 / 0 100 ° / 0/1 day 1001 / o / 2 days - 100 ° / 0/2 days 2 C H2 COOC 8 Hl l 0.10 / 0 100 ° / 0.12 days 20 ° / 0/2 days - 20 ° / 0/2 days NCS - CH 0.010 /, 90 ° / 0/2 days - - (- NCS (CH2) 3 - COO - C, H5 0.10 /, 100 ° / 0/1 day 1000/0/2 days - f 100 ° / 0/2 days NCS (C H2) 4. COO - C2 H5 0.10 /, 100 ° / 0/1 day 100 °% / 2 days - 100 ° / 0/1 day NCS (CH2) s - COO. C2H5 0.1 ° / o 90 ° / 0/2 days 100 ° / 0/2 days - 100 ° / 0/1 day /1 day NCS # CH # COO. C2 H5 0.1 ° / 0 100 ° / 0/1 day 100 0/0/2 days - 1000/0 CH2 - Cl NCS - (C H2) s NH # COO - C2 H5 0.10 / 0 100 ° / 0/2 days; 90 0/0/2 days - 100 ° jo / l day NCS # CH, # CH2 - CH2 # Cl - 0.10 / 0 100 ° / 0/1 day 100 ° /, / l day - 100 ° 7'0 / l day 0.010 /, 100 ° / 0/2 days 90 0% / 2 days - 90 ° / 0/1 day NCS - C H2 # C H2 - CH, - C H2 - Br 0.10 /, 100 ° / 0/2 days li 90 ° / 0l2 days - 100 0 / "/ 'l day NCS - CH2 - CH2. CH2 - CN 0.10 /, 90 ° / 0/2 days i 100 ° / 0/1 day - 951) / 0/2 days NCS - C H2. CH, - 0, 0,10 /, 98 o / 0/2 days 100 ° / 0/2 days - 100 ° 1o12 days 0.01 ° / o - - - 100 ° / 0/2 days Concentration number of inactive nematodes in% preparation tration Anguina Heterodora Aphelen- @ Ditylenchus tritici schachtii choides dipsaci NCS (C H2) 3 - SCN 0.10 / 0 100 0/0/1 day 100 0/0 (1 day - 1000 /, / l day 0.010 / 0 - 80 0/0/2 days 100 0/0/2 days 80 0/0/2 days NCS (C H2) 4 - SCN 0.10 / 0 - 100 0/0/1 day 95 0/0/2 days 100 0/0/1 day 0.010 / 0 - 90 0/0/2 days 100 0/0/2 days 50 0/0/2 days NCS (CH,) "- S CN 0.10 / 0 - 100 0/0/1 day 100 0/0/1 day 100 0/0/1 day 0.010 / 0 - 100 0/0/2 days 100 0/0/1 day 80 0/0/2 days NCS-CH2CH2 \ O 0.10 / 0 - 100 0/0/1 day 100 0/0/2 days 92 0/0/2 days NCS - C H2 C H2 / 0.010 / 0 - 80 0/0/2 days 95 0/0/2 days 30 0/0/2 days NCS - (C H2) 4 - Cl 0.10 / 0 - 100 0/0/1 day 100 0/0/1 day 100 0/0/2 days 0.010 / 0 - 100 0/0/2 days 100 0/0/2 days 100 0/0/2 days NCS - C H2 - C H2 - CN 0.10 / 0 - 100 0/0/1 day 100 0/0/1 day 100 0/0/2 days 0.010 / 0 - 100 0/0/1 day - - NCS - (C H2) i0 - COOH 0.10 / 0 - 100 0/0/1 day 100 0/0/1 day 100 0/0/1 day

Claims (1)

PATENTANSPRUCH: Verwendungvon aliphatischenRhodanverbindungen bzw. Rhodancarbonsäureestern zur Bekämpfung von Nematoden. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 877 072, 878 450; französische Patentschrift Nr. 1043 456.PATENT CLAIM: Use of aliphatic rhodan compounds or rhodanecarboxylic acid esters for combating nematodes. Considered publications: German Patent Specifications Nos. 877 072, 878 450; French patent specification No. 1 043 456.
DEF14465A 1954-04-15 1954-04-15 Combating nematodes Pending DE1019123B (en)

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DEF14465A Pending DE1019123B (en) 1954-04-15 1954-04-15 Combating nematodes

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3284288A (en) * 1965-02-10 1966-11-08 Bayer Ag Pesticides and production thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE877072C (en) * 1943-03-14 1953-05-21 Hydrierwerke A G Deutsche Pest control
DE878450C (en) * 1949-10-08 1953-06-01 May & Baker Ltd Mixtures with an insecticidal, acaricidal, fungicidal or herbicidal effect
FR1043456A (en) * 1950-08-22 1953-11-09 Method for combating pests of plants, more particularly the potato disease generator, and preparations for combating such organisms

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE877072C (en) * 1943-03-14 1953-05-21 Hydrierwerke A G Deutsche Pest control
DE878450C (en) * 1949-10-08 1953-06-01 May & Baker Ltd Mixtures with an insecticidal, acaricidal, fungicidal or herbicidal effect
FR1043456A (en) * 1950-08-22 1953-11-09 Method for combating pests of plants, more particularly the potato disease generator, and preparations for combating such organisms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3284288A (en) * 1965-02-10 1966-11-08 Bayer Ag Pesticides and production thereof

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