DE2309246A1 - Antifungal seed dressings - contg. 4-nitroso-N,N-dimethyl-aniline as active ingredient - Google Patents
Antifungal seed dressings - contg. 4-nitroso-N,N-dimethyl-aniline as active ingredientInfo
- Publication number
- DE2309246A1 DE2309246A1 DE19732309246 DE2309246A DE2309246A1 DE 2309246 A1 DE2309246 A1 DE 2309246A1 DE 19732309246 DE19732309246 DE 19732309246 DE 2309246 A DE2309246 A DE 2309246A DE 2309246 A1 DE2309246 A1 DE 2309246A1
- Authority
- DE
- Germany
- Prior art keywords
- nitroso
- seed dressings
- contg
- aniline
- dimethyl
- 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
Links
- CMEWLCATCRTSGF-UHFFFAOYSA-N N,N-dimethyl-4-nitrosoaniline Chemical compound CN(C)C1=CC=C(N=O)C=C1 CMEWLCATCRTSGF-UHFFFAOYSA-N 0.000 title claims abstract description 5
- 239000004480 active ingredient Substances 0.000 title claims description 11
- 230000000843 anti-fungal effect Effects 0.000 title 1
- 229940121375 antifungal agent Drugs 0.000 title 1
- 230000000855 fungicidal effect Effects 0.000 claims abstract description 7
- 239000000417 fungicide Substances 0.000 claims abstract description 4
- CKAPSXZOOQJIBF-UHFFFAOYSA-N hexachlorobenzene Chemical compound ClC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl CKAPSXZOOQJIBF-UHFFFAOYSA-N 0.000 claims abstract description 3
- LKPLKUMXSAEKID-UHFFFAOYSA-N pentachloronitrobenzene Chemical compound [O-][N+](=O)C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl LKPLKUMXSAEKID-UHFFFAOYSA-N 0.000 claims abstract description 3
- 150000003839 salts Chemical class 0.000 claims abstract description 3
- 239000000575 pesticide Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 201000010099 disease Diseases 0.000 claims description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 2
- 231100000053 low toxicity Toxicity 0.000 abstract description 4
- GYSSRZJIHXQEHQ-UHFFFAOYSA-N carboxin Chemical compound S1CCOC(C)=C1C(=O)NC1=CC=CC=C1 GYSSRZJIHXQEHQ-UHFFFAOYSA-N 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 9
- 241000209140 Triticum Species 0.000 description 6
- 235000021307 Triticum Nutrition 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005554 pickling Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 206010061217 Infestation Diseases 0.000 description 4
- JJWSNOOGIUMOEE-UHFFFAOYSA-N Monomethylmercury Chemical compound [Hg]C JJWSNOOGIUMOEE-UHFFFAOYSA-N 0.000 description 4
- 238000003306 harvesting Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- 241000209219 Hordeum Species 0.000 description 2
- 235000007340 Hordeum vulgare Nutrition 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 235000013532 brandy Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003032 phytopathogenic effect Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- DFMDYXIUQNHKQQ-UHFFFAOYSA-N 6-methyl-5-phenyl-2,3-dihydro-1,4-oxathiine-2-carboxamide Chemical compound S1CC(C(N)=O)OC(C)=C1C1=CC=CC=C1 DFMDYXIUQNHKQQ-UHFFFAOYSA-N 0.000 description 1
- 229920001817 Agar Polymers 0.000 description 1
- 235000021537 Beetroot Nutrition 0.000 description 1
- 241000335053 Beta vulgaris Species 0.000 description 1
- 241001459558 Monographella nivalis Species 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 241001503951 Phoma Species 0.000 description 1
- 241000228454 Pyrenophora graminea Species 0.000 description 1
- 241000599030 Pythium debaryanum Species 0.000 description 1
- 241000722093 Tilletia caries Species 0.000 description 1
- 241000221566 Ustilago Species 0.000 description 1
- 241000007070 Ustilago nuda Species 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000012272 crop production Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 231100001231 less toxic Toxicity 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000004763 spore germination Effects 0.000 description 1
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
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
- A01N33/24—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds only one oxygen atom attached to the nitrogen atom
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)
Abstract
Description
Saatgutbeizmittel Die Erfindung betrifft neue Saatgutbeizmittel, die als eine aktive Komponente p-Nitrosodimethylanilin ( I ) oder Salze dieser Verbindung enthalten, Zur Kombination mit dem erfindungsgemäßen Produkt I eignen sich besonders die bekannten fungiziden Wirkstoffe Pentachlornitrobenzol ( II ), Hexachlorbenzol ( III ) sowie 2.3-Dihydro-6-methyl-5-phenyl-carbamoyl-l.4-oxathiin ( IV ). Ebenso läßt sich I auch mit anderen fungiziden Wirkstoffen Je nach Gebrauchswert zu geeigneten Pflanzenschutzmitteln kombinieren.Seed dressings The invention relates to new seed dressings which contain p-nitrosodimethylaniline (I) as an active component or contain salts of this compound, the known fungicidal active ingredients pentachloronitrobenzene (II), hexachlorobenzene (III) and 2,3-dihydro-6-methyl-5-phenyl-carbamoyl-1.4-oxathiine are particularly suitable for combination with the product I according to the invention ( IV). Likewise, I can also be combined with other fungicidal active ingredients, depending on the utility value, to form suitable crop protection agents.
Es ist bereits bekannt, daß I antiseptische Eigenschaften besitzt, daß II und III als Fungizide wirken und IV systemfungizide Eigenschaften hat. Es ist Jedoch neu, daß durch Kombination dieser letztgenannten Wirkstoffe mit I Saatgutbeizmittel mit einem breiten Wirkungsspektrum entstehen.It is already known that I has antiseptic properties, that II and III act as fungicides and IV has system fungicidal properties. It What is new, however, is that by combining these last-mentioned active ingredients with I seed dressing agents with a broad spectrum of activity.
Zur Bekämpfung phytopathogener Pilze am Saatgut kommen in der Praxis überwiegend quecksilberhaltige Wirkstoffe zum Einsatz. Diese besitzen jedoch den Nachteil einer hohen Warmblütertoxizität. Andere, weniger toxische Wirkstoffe befriedigen wegen ihres engen Wirkungsspektrums nicht.To combat phytopathogenic fungi on the seeds come in practice mainly active ingredients containing mercury are used. However, these have the Disadvantage of high toxicity to warm blooded animals. Other, less toxic active ingredients satisfy not because of their narrow spectrum of activity.
Zweck der Erfindung ist es, für den landwirtschaftlichen, gärtnerischen und forstwirtschaftlichen Pflanzenbau mindertoxische, polyvalent bis universell wirkende Pflanzenschutzmittel zur besonderen Verwendung als Beizmittel zu schaffen.The purpose of the invention is for agricultural, horticultural and forestry crop production, low-toxicity, polyvalent to universal to create effective pesticides for special use as a dressing agent.
Aufgabe der Erfindung ist es, durch optimierte Kombination des erfindungsgemäßen Produktes I mit geeigneten fungiziden Wirkstoffen unter Ausnutzung potenzierender Eigenschaften Pflanzenschutzmittel zu entwickeln, die eich durch geringe Warmblütertoxizität und breites Wirkungsspektrum auszeichnen.The object of the invention is to optimize the combination of the inventive Product I with suitable fungicidal active ingredients using potentiating agents Properties to develop pesticides that are calibrated by low toxicity to warm-blooded animals and a broad spectrum of activity.
Die Wirkstoffe sind an sich bekannt und können nach an sich bekannten Methoden hergestellt werden. Die Zubereitung der Mittel erfolgt zweckmäßig mit einer für Saatgutbehandlungsmittel üblichen Formulierung unter Verwendung von festen oder flüssigen Trägerstoffen bzw.The active ingredients are known per se and can be used according to per se Methods are made. The preparation of the means is expediently carried out with a customary formulation for seed treatment agents using solid or liquid carriers or
Verdünnungsmitteln und eventuellem Zusatz von oberflächenaktiven Stoffen. Der Anteil des Wirkstoffes I kann zweckmäßig 2 ... 25 % betragen. Bei Kombination mit den anderen genannten Wirkstoffen sind folgende Zusatzmengen vorteilhaft: 10 ... 30 % II, 10 ... 30 % III und 25 ... 50 % IV. Die genaue Konzentration wird weitgehend durch Einsatzgebiet und Aufwandmenge bei der Applikation bestimmt.Thinners and possible addition of surface-active substances. The proportion of the active ingredient I can expediently be 2 ... 25%. When combined with the other active ingredients mentioned, the following additional amounts are advantageous: 10 ... 30% II, 10 ... 30% III and 25 ... 50% IV. The exact concentration is largely determined by the area of use and the amount applied during the application.
Aus den folgenden Beispielen geht die ausgezeichnete Wirkung der erfindungsgemäßen Mittel gegen phytopathogene Pilze am Saatgut hervor.The excellent effect of the invention can be seen from the following examples Agents against phytopathogenic fungi on the seeds.
Beispiel 1: Wirkung gegen Schneeschimmel an Roggen (Calonectria nivalis) Mit Konidien künstlich inokuliertes Roggensaatgut wurde mit den erfingsgemäßen Mitteln trockengebeizt (200 g/dt Saatgut) und auf Agarnährboden ausgelegt. Die Beizwirkung wurde nach 6-tägiger Inkubation makroskopisch bonitiert und der Besatzindex berechnet.Example 1: Action against snow mold on rye (Calonectria nivalis) Rye seed artificially inoculated with conidia was produced with the means according to the invention dry-dressed (200 g / dt seed) and laid out on agar culture medium. The pickling effect was rated macroscopically after 6 days of incubation and the stocking index was calculated.
Tabelle Präparat Besatzanteil in % Besatzindex I (10 %) 0,0 0,0 I (10 A)+ II (25 ) 1,5 0,75 Athyl-Hg-phosphat (1,6 % 18,5 9,7 Hg) unbehandelte Kontrolle 100,0 86,8 Die Ergebnisse ließen sich unter Freilandbedingungen bestätigen. Table preparation stocking percentage in% stocking index I (10%) 0.0 0.0 I. (10 A) + II (25) 1.5 0.75 ethyl-Hg-phosphate (1.6% 18.5 9.7 Hg) untreated control 100.0 86.8 The results were confirmed under field conditions.
Beispiel 2: Wirkung gegen Weizensteinbrand (Tilletia caries) Mit Sporen inokuliertes Weizensaatgut wurde trocken-oder echlämmgebeizt (1 Teil Präparat in 5 Teilen Wasser suspendiert) und im Freiland ausgesät. Vor der Ernte wurden die vom Steinbrand befallenen Ahren gezählt.Example 2: Action against wheat stone brandy (Tilletia caries) with spores Inoculated wheat seeds were dressed dry or sludge (1 part preparation in 5 parts of water suspended) and sown in the open. Before the harvest, the Ahren affected by the stone fire counted.
Tabelle Befall in % Präparat Winterweizen Sommerweizen I (5 %) - 11,6 1 (5 %)+ III (15 %)+ IV (40 %) Trockenbeizung 0,00 0,00 Schlämmbeizung 0,02 0,00 Di-(Methyl-Quecksilber) -p-toluolsulfamid (0,9 % 0,00 0,03 Hg) unbeh. Kontrolle 22,95 59,68 Beispiel 3: Wirkung gegen Haferflugbrand (Ustilago avense) Mittels der Infiltrationsmethode nach HAARING inokuliertes Hafersaatgut wurde trocken- oder schlämmgebeizt (1 Teil Präparat in 5 Teilen wasser suspendiert) und im Freiland ausgesät, Vor der Ernte wurden die befallenen Rispen gezählt. Table infestation in% preparation winter wheat summer wheat I (5%) - 11.6 1 (5%) + III (15%) + IV (40%) dry dressing 0.00 0.00 slurry dressing 0.02 0.00 Di- (methyl-mercury) -p-toluenesulfamide (0.9% 0.00 0.03 Hg) untreated. control 22.95 59.68 Example 3: Action against oat smut (Ustilago avense) by means of the Infiltration method according to HAARING inoculated oat seeds became dry or Slurry pickled (1 part of the preparation suspended in 5 parts of water) and outdoors sown, the infested panicles were counted before the harvest.
Tabelle Präparat Befall in % I (10 zu 9,2 I (5 %) + II (20 %) + IV (40 %) Trockenbeizung 0,03 Schlämmbeizung 0,01 Di-(Methyl-Quecksilber)-ptoluolsulfamid 0,85 unbehandelte Kontrolle 24,71 Beispiel 4: Wirkung gegen Gerstenflugbrand (Ustilago nuda) Natürlich infiziertes Saatgut wurde trocken- oder schlämmgebeizt (1 Teil Präparat in 5 Teilen Wasser suspendiert) und im Freiland ausgesät. Vor der Ernte wurden die befallenen Ähren gezählt. Table preparation infestation in% I (10 to 9.2 I (5%) + II (20%) + IV (40%) dry pickling 0.03 slurry pickling 0.01 di- (methyl-mercury) -ptoluenesulfamide 0.85 untreated control 24.71 Example 4: Action against flying barley blight (Ustilago nuda) Naturally infected seeds were dry or slurry dressed (1 part of the preparation suspended in 5 parts of water) and sown outdoors. Before the The infected ears were counted during the harvest.
Tabelle Präparat Befall in % I (10 %) 1,8 I (5 %)+ III (15 %)+ IV (40 %) Trockenbeizung 0,05 Schlämmbeizung 0,11 Di-(Methyl-Quecksilber)-ptoluolsulfamid völlig unwirksam unbehandelte Kontrolle 3,23 Gleichzeitig ließ sich durch die erfindungsgemäßen Mittel die Streifenkrankheit der Gerste (Helminthosporium gramineum) sicher bekämpfen. Table preparation infestation in% I (10%) 1.8 I (5%) + III (15%) + IV (40%) dry pickling 0.05 slurry pickling 0.11 di- (methyl-mercury) -ptoluenesulfamide completely ineffective untreated control 3.23 At the same time, the Means to fight the streak disease of barley (Helminthosporium gramineum) safely.
Beispiel 5: Wirkung gegen Erreger des Wurzelbrandes der Rüben (Phoma betac, Pythium debaryanum u.aO) Natürlich infiziertes Saatgut wurde trockengebeizt und im Freiland im verseuchten Boden ausgesät. Nach dem Auflaufen der Rübenpflänzchen wurde der Befall durch Wurzelbrand ermittelt.Example 5: Action against root blight pathogens in beetroot (Phoma betac, Pythium debaryanum and others) Naturally infected seeds were dry-dressed and sown outdoors in contaminated soil. After the beet plants emerge the infestation was determined by root burn.
Tabelle Präparat Anteil aufgelaufener Anteil aufge-Pflanzen in s laufener gesunder Pflanzen in % I (5 %) + II (20 %)+ IV (40 %) 100 96 Di-(Methyl-Quecksilber) -p-toluolsulfamid 80 68 unbehandelte Kontrolle 89 62 Beispiel 6: Synergistische Wirkung gegen Weizensteinbrand (Tillentia caries) Mit Sporen inokuliertes Weizensaatgut wurde gebeizt und im Erdschalentest nach GASSNER (Phytopathol. Zeitschrift 14, 1944, 304 ... 309) hinsichtlich des Einflusses auf brandsporenkeimung bzw. Sporidienbildung geprüft. Die Berechnung der synergistischen Wirkung erfolgte nach COIBY (Weeds 15, 196, 20 ... 22). Table preparation Proportion of accrued proportion of up-plants in s running healthy plants in% I (5%) + II (20%) + IV (40%) 100 96 di- (methyl mercury) -p-toluenesulfamide 80 68 untreated control 89 62 Example 6: Synergistic Effect against wheat stone brandy (Tillentia caries) Wheat seeds inoculated with spores was pickled and in the earth shell test according to GASSNER (Phytopathol. Journal 14, 1944, 304 ... 309) with regard to the influence on smut spore germination or sporidia formation checked. The calculation of the synergistic effect was carried out according to COIBY (Weeds 15, 196, 20 ... 22).
Tabelle Präparat Aufwandmenge Sporidien- additiver in bildung in Wert nach g/kg Saatgut % COLBY I (10 %) 1 60 IV (80 %) 1 15 I (10 %) + Iv (80 %) 1 3 9,0 I (10 %) 4 23 IV (10 %) 4 40 I (10 %) + Tv (10 s) 4 1 9,2 Di- (Methyl-Que cksilber) -p-toluolsulfamid 2 0,1 unbehandelte Kontrolle 90 Table of product application rate Sporidia additive in formation in Value according to g / kg seed% COLBY I (10%) 1 60 IV (80%) 1 15 I (10%) + Iv (80%) 1 3 9.0 I (10%) 4 23 IV (10%) 4 40 I (10%) + Tv (10 s) 4 1 9.2 Di- (Methyl-Que cksilver) -p-toluenesulfamide 2 0.1 untreated control 90
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732309246 DE2309246A1 (en) | 1973-02-24 | 1973-02-24 | Antifungal seed dressings - contg. 4-nitroso-N,N-dimethyl-aniline as active ingredient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732309246 DE2309246A1 (en) | 1973-02-24 | 1973-02-24 | Antifungal seed dressings - contg. 4-nitroso-N,N-dimethyl-aniline as active ingredient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2309246A1 true DE2309246A1 (en) | 1974-08-29 |
Family
ID=5872965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19732309246 Pending DE2309246A1 (en) | 1973-02-24 | 1973-02-24 | Antifungal seed dressings - contg. 4-nitroso-N,N-dimethyl-aniline as active ingredient |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2309246A1 (en) |
-
1973
- 1973-02-24 DE DE19732309246 patent/DE2309246A1/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2801428C2 (en) | Fungicides | |
| DE69607743T3 (en) | Insecticidal combinations containing a chloronicotinyl series insecticide and an insecticide having a pyrazole, pyrrole or phenylimidazole group | |
| DE69811981T2 (en) | Chitosan-containing composition to increase resistance to plant diseases | |
| DE2857660C2 (en) | Herbicidal composition for the control of perennial weeds and bushes | |
| DE2857693C2 (en) | Process for the selective control or destruction of undesired vegetation in crops of useful plants | |
| DE2440787A1 (en) | METHOD OF SELECTIVE CONTROL OF WEEDS IN KENTUCKY BLUE GRASS | |
| DE2617743C2 (en) | Fungicides based on hypophosphites and their use as plant protection products | |
| DE2309246A1 (en) | Antifungal seed dressings - contg. 4-nitroso-N,N-dimethyl-aniline as active ingredient | |
| DE2805941C2 (en) | Hydrazinium phosphites, their preparation and funigcidal compositions | |
| DE3640048A1 (en) | AGENT FOR CONTROLLING PHYTOPATHOGENIC BACTERIA AND MUSHROOMS | |
| DE2512556C2 (en) | Cyclic diphosphorus compounds, their preparation and fungicidal compositions containing them | |
| DE2345841C2 (en) | ||
| DE1916069C3 (en) | Fungicidal pesticides based on hydroxyquinoline | |
| DE69614542T2 (en) | FUNGICIDAL MIXTURES | |
| DD248500A1 (en) | MEANS FOR THE TREATMENT OF SEED AND PLANT | |
| AT259932B (en) | Methods of combating diseases of cereals | |
| DD226756A5 (en) | SYNERGISTIC MULTICOMPONENT PRACTICE FOR CONTROLLING THE MUSHROOMS OF CEREALS | |
| AT206697B (en) | Preparations for the control of monocot weeds and in particular wild oats | |
| DE952666C (en) | Treatment of plants in order to combat animal parasites and pathogens | |
| DE495049C (en) | Insecticides | |
| CH510384A (en) | Herbicidal mixture and its application | |
| DE3533652A1 (en) | SEEDING AGENTS BASED ON A PHOSPHONIC ACID MONOESTER SALT AND METHOD FOR SEEDING SEEDS | |
| DE744721C (en) | Pest repellants | |
| DE871977C (en) | Preparations for the control of harmful insects | |
| AT212078B (en) | Process for influencing the degree of hydration and the release of water in plants |