NO125565B - - Google Patents

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Publication number
NO125565B
NO125565B NO2889/69A NO288969A NO125565B NO 125565 B NO125565 B NO 125565B NO 2889/69 A NO2889/69 A NO 2889/69A NO 288969 A NO288969 A NO 288969A NO 125565 B NO125565 B NO 125565B
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preparation
preparations
triphenyltin
bis
fungicidal
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NO2889/69A
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Norwegian (no)
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R Paquet
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Ucb Sa
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N59/00Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/16Heavy metals; Compounds thereof
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/22Tin compounds
    • C07F7/2224Compounds having one or more tin-oxygen linkages
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N25/00Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/32Ingredients for reducing the noxious effect of the active substances to organisms other than pests, e.g. toxicity reducing compositions, self-destructing compositions
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N47/00Biocides, 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
    • A01N47/08Biocides, 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
    • A01N47/10Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
    • A01N47/12Carbamic 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
    • A01N47/14Di-thio analogues thereof
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N55/00Biocides, pest repellants or attractants, or plant growth regulators, containing organic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen and sulfur
    • A01N55/02Biocides, pest repellants or attractants, or plant growth regulators, containing organic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen and sulfur containing metal atoms
    • A01N55/04Tin
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N59/00Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/16Heavy metals; Compounds thereof
    • A01N59/20Copper
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N2300/00Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Agronomy & Crop Science (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Toxicology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

Fungicid preparat som inneholder trifenyltinnforbindelser og metallsalter av 1,2-propylen-bis-dithiocarbaminsyre. Fungicidal preparation containing triphenyltin compounds and metal salts of 1,2-propylene-bis-dithiocarbamic acid.

Foreliggende oppfinnelse angår nye fungicide preparater, nærmere bestemt ikke-fytotoksiske fungicide preparater som inneholder trifenyltinnforbindelser og dithiocarbaminsyrésalter. The present invention relates to new fungicidal preparations, more specifically non-phytotoxic fungicidal preparations containing triphenyltin compounds and dithiocarbamic acid salts.

Det er kjent at visse organiske tinnforbindelser, såsom trifenyltinnklorid, -hydroxyd og -acetat har utmerkede fungicide egenskaper. Det har derfor vært gjort forsok på å anvende dem for jord-bruksformål, nemlig for å bekjempe sykdommer som angriper cryptogame kulturplanter. Det har imidlertid vist sig at de ovennevnte trifenyltinnforbindelser er utpreget fytotoksiske, og det er av denne grunn i ldpet av de siste år foreslått en rekke preparater som har hatt til hensikt å redusere eller, om mulig, å eliminere denne ulempe. It is known that certain organotin compounds, such as triphenyltin chloride, -hydroxide and -acetate have excellent fungicidal properties. Attempts have therefore been made to use them for agricultural purposes, namely to combat diseases that attack cryptogamous cultivated plants. However, it has been shown that the above-mentioned triphenyltin compounds are distinctly phytotoxic, and for this reason, in recent years, a number of preparations have been proposed with the aim of reducing or, if possible, eliminating this disadvantage.

Det har således vist sig at den fytotoksiske virkning avtar betydelig når de trifenyltinnforbindelseferoldige preparater har en pH-verdi hbyere enn 7. For å oppnå dette blandes trifenyltinn-forbindelsene med alkaliske stoffer, såsom natrium- eller kalium-karbonat, natrium- eller kaliumbikarbonat, aminer eller lignende. Videre reduseres fytotoksisiteten ved tilsetning av organiske stoffer av hydrofil karakter, som er istand til å danne kolloidalé oppløsnin-ger med vann (albumin, stivelse, gummiarabicum og lignende), se belgisk patentskrift nr. 604,225. It has thus been shown that the phytotoxic effect decreases significantly when the triphenyltin compound-based preparations have a pH value higher than 7. To achieve this, the triphenyltin compounds are mixed with alkaline substances, such as sodium or potassium carbonate, sodium or potassium bicarbonate, amines etc. Furthermore, phytotoxicity is reduced by the addition of organic substances of a hydrophilic nature, which are capable of forming colloidal solutions with water (albumin, starch, gum arabic and the like), see Belgian patent document no. 604,225.

En annen metode som er blitt anvendt for å nedsette fytotoksisiteten av organiske tinnforbindelser, består i å blande dem med metallsalter av ethylen-bis-dithiocarbaminsyre, hvilke som kjent også har gode fungicide egenskaper. Disse blandinger er for-delaktige ikke bare med hensyn til fytotoksisiteten, men også ved at de utover en synergisk fungicid virkning, samtidig med at de har en stimulerende virkning på planteutvikling en, jfr. belgisk patentskrift nr. 608,732. Another method that has been used to reduce the phytotoxicity of organic tin compounds consists in mixing them with metal salts of ethylene-bis-dithiocarbamic acid, which are known to also have good fungicidal properties. These mixtures are advantageous not only with regard to phytotoxicity, but also in that, in addition to a synergistic fungicidal effect, at the same time they have a stimulating effect on plant development, cf. Belgian Patent Document No. 608,732.

Ikke desto mindre er ifolge fransk patentskrift nr. 1,439,363 de ovenfor omtalte fungicide preparater ikke fullt ut til-fredsstillende med hensyn til fytotoksisitet, og de er effektive bare dersom meget bestemte betingelser iakttaes under påforingen. Nevertheless, according to French patent document No. 1,439,363, the fungicidal preparations mentioned above are not fully satisfactory with respect to phytotoxicity, and they are only effective if very specific conditions are observed during application.

Av denne grunn foreslåes der i henhold til fransk patentskrift nr. 1,439,363 å tilsette disse blandede preparater alkaliske stoffer og hydrofile organiske stoffer av den type som foreslåes i ovennevnte For this reason, according to French patent document no. 1,439,363, it is proposed to add to these mixed preparations alkaline substances and hydrophilic organic substances of the type proposed in the above

o belgiske patentskrift nr. 604,225. o Belgian Patent Document No. 604,225.

I belgisk patentskrift nr. 608,732 og i fransk patentskrift nr. 1,439,363 benevnes metallsalter av ethylen-bis-dithiocarbaminsyre alltid som dithiocarbaminforbindelser. In Belgian Patent Document No. 608,732 and in French Patent Document No. 1,439,363, metal salts of ethylene-bis-dithiocarbamic acid are always referred to as dithiocarbamine compounds.

Det er et mål med den foreliggende oppfinnelse å til-veiebringe nye blandede preparater som inneholder trifenyltinnforbindelser og visse dithiocarbaminsyresalter, hvilke preparater har lavere fytotoksisitet enn hittil kjente blandede preparater av denne type. Disse blandede preparater har en foroket stimulerende virkning på kulturplanter. Dessuten er de mindre omfintlige, med hensyn til fytotoksisitet, overfor variasjoner i pH-verdien. It is an aim of the present invention to provide new mixed preparations containing triphenyltin compounds and certain dithiocarbamic acid salts, which preparations have lower phytotoxicity than previously known mixed preparations of this type. These mixed preparations have an increased stimulating effect on cultivated plants. Moreover, they are less sensitive, with regard to phytotoxicity, to variations in the pH value.

Det har således nu overraskende vist sig at når metall-ethylen-bis-dithiocarbamatet i de blandede preparater inneholdende en trifenyltinnforbindelse og et metall-ethylen-bis-dithiocarbamat erstattes med et metall-1,2-propylen-bis-dithiocarbamat, oppnåes de ovennevnte onskelige resultater. It has thus now surprisingly been shown that when the metal-ethylene-bis-dithiocarbamate in the mixed preparations containing a triphenyltin compound and a metal-ethylene-bis-dithiocarbamate is replaced by a metal-1,2-propylene-bis-dithiocarbamate, the above-mentioned results are obtained undesirable results.

De fungicide preparater ifolge oppfinnelsen utmerker sig derfor ved at de inneholder en trifenyltinnforbindelse og et metallsalt av 1,2-propylen-bis-dithiocarbaminsyre som aktive fungicide bestanddeler. The fungicidal preparations according to the invention are therefore distinguished by the fact that they contain a triphenyltin compound and a metal salt of 1,2-propylene-bis-dithiocarbamic acid as active fungicidal ingredients.

Med betegnelsen trifenyltinnforbindelse menes trifenyltinnklorid, trifenyltinnhydroxyd og/eller trifenyltinnacetat. The term triphenyltin compound means triphenyltin chloride, triphenyltin hydroxide and/or triphenyltin acetate.

Med betegnelsen metallsalt av.1,2-propylen-bis-dithiocarbaminsyre menes et kalsium-, barium-, strontium-, magnesium-, kobber-, jern-, nikkel-, kobolt-, cadmium-, sink- eller mangansalt av denne syre, spesielt sink- eller mangansaltet, eller en blanding av to eller flere av disse salter. The term metal salt of 1,2-propylene-bis-dithiocarbamic acid means a calcium, barium, strontium, magnesium, copper, iron, nickel, cobalt, cadmium, zinc or manganese salt of this acid , especially the zinc or manganese salt, or a mixture of two or more of these salts.

Vektforholdet mellom trifenyltinnforbindeisen og 1,2-propylen-bis-dithiocarbaminsyresaltet kan være fra 10:1 til 1:10, og er fortrinnsvis fra 5:1 til 1:6. The weight ratio between the triphenyltin compound and the 1,2-propylene-bis-dithiocarbamic acid salt can be from 10:1 to 1:10, and is preferably from 5:1 to 1:6.

De fungicide preparater ifolge oppfinnelsen inneholder fra 15 til 90 vekt% fungicide materialer totalt (trifenyltinnforbindelse + 1,2-propylen-bis-dithiocarbaminsyresalt), idet resten av preparatene utgjores av konvensjonelle additiver, såsom fi.eks. fukte-midler, klebemidler, mineralske eller organiske faste fyllstoffer, inerte fortynningsvæsker og lignende. The fungicidal preparations according to the invention contain from 15 to 90% by weight of fungicidal materials in total (triphenyltin compound + 1,2-propylene-bis-dithiocarbamic acid salt), the rest of the preparations being made up of conventional additives, such as e.g. wetting agents, adhesives, mineral or organic solid fillers, inert diluents and the like.

De fungicide preparater ifolge oppfinnelsen gis fortrinnsvis form av såkalte fuktbare pulvere, som fortynnes for bruk med en passende mengde vann (vanligvis 500 - lOOO liter pr. hektar), slik at de kan påfores ved sproytning. Den totale dose av aktive fungicide materialer (trifenyltinnforbindelse + 1,2-propylen-bis-dithiocarbaminsyresalt) som påfores pr. hektar dyrket mark varierer naturligvis, alt efter mengdeforholdet mellom de to aktive bestanddeler, arten av planten som skal beskyttes, dens vekststadium, gra-den av besmittelse og lignende, men den påforte mengde varierer vanligvis mellom 0,1 og 3 kg pr. hektar, fortrinnsvis mellom 0,2 og 2,5 kg pr. hektar. I den nedenstående tabell er eksempler på påforte mengder oppfort: The fungicidal preparations according to the invention are preferably given in the form of so-called wettable powders, which are diluted for use with a suitable amount of water (usually 500 - 100 liters per hectare), so that they can be applied by spraying. The total dose of active fungicidal materials (triphenyltin compound + 1,2-propylene-bis-dithiocarbamic acid salt) applied per hectare of cultivated land naturally varies, depending on the quantity ratio between the two active ingredients, the type of plant to be protected, its growth stage, the degree of contamination and the like, but the applied quantity usually varies between 0.1 and 3 kg per hectare, preferably between 0.2 and 2.5 kg per hectares. In the table below are examples of applied quantities:

Denne påforing av det fungicide preparat kan gjentaes flere ganger under plantenes vekstperiode, idet det om onskes kan påfores ulike mengder ved de forskjellige påforinger (se eksempel 1). This application of the fungicidal preparation can be repeated several times during the plants' growth period, since if desired, different quantities can be applied at the different applications (see example 1).

Dé fungicide preparater ifolge oppfinnelsen kan anvendes for bekjempelse av Phytophtora infestans i avlinger av poteter og tomater, av Septoria i avlinger av selleri, av Cercospora i beteavlin-ger, av rust på epler og pærer (Fusicladium), av Botrytis og Fusarium i diverse avlinger, av Cladosporia i tomatavlinger, av Peronospora i tobakkavlinger, av Plasmospora viticola i drueavlinger, og generelt for bekjempelse av alle fytopatogene fungusarter overfor hvilke organiske trifenyltinnforbindelser har vist sig å ha fungicid virkning. De folgende eksempler illustrerer oppfinnelsen. The fungicidal preparations according to the invention can be used to combat Phytophtora infestans in crops of potatoes and tomatoes, of Septoria in crops of celery, of Cercospora in beet crops, of rust on apples and pears (Fusicladium), of Botrytis and Fusarium in various crops , of Cladosporia in tomato crops, of Peronospora in tobacco crops, of Plasmospora viticola in grape crops, and in general for combating all phytopathogenic fungal species against which organic triphenyltin compounds have been shown to have a fungicidal effect. The following examples illustrate the invention.

Eksempel 1 Example 1

For å utfore forsok for å bestemme fytotoksisiteten blev de folgende seks preparater tilberedt: In order to carry out experiments to determine the phytotoxicity, the following six preparations were prepared:

pH-verdien av en 4 %ig suspensjon av preparat The pH value of a 4% suspension of preparation

nr. li destillert vann var 9,33. No. li distilled water was 9.33.

Preparat nr. 2: (ikke ifolge oppfinnelsen) Preparation no. 2: (not according to the invention)

Samme preparat som preparat nr. 1, bortsett fra at sink-1,2-propylen-bis-dithiocarbamatet var erstattet med den samme mengde mangan-ethylen-bis-dithiocarbamat inneholdende 89 % aktivt materiale. The same preparation as preparation No. 1, except that the zinc-1,2-propylene-bis-dithiocarbamate was replaced by the same amount of manganese-ethylene-bis-dithiocarbamate containing 89% active material.

pH-verdien av en 4 %ig suspensjon av preparat nr. 2 i destillert vann var 9,15. The pH value of a 4% suspension of preparation no. 2 in distilled water was 9.15.

Preparat nr. 3: Preparation No. 3:

Samme preparat som preparat nr. 1, bortsett fra at trifenyltinnhydroxydet var erstattet med 13,5 g trifenyltinnacetat inneholdende 89 % aktivt materiale. The same preparation as preparation No. 1, except that the triphenyltin hydroxide was replaced by 13.5 g of triphenyltin acetate containing 89% active material.

pH-verdien av en 4 %ig suspensjon av preparat nr. 3 i destillert vann var 8,6. The pH value of a 4% suspension of preparation no. 3 in distilled water was 8.6.

Preparat nr. 4: (ikke ifolge oppfinnelsen) Preparation no. 4: (not according to the invention)

Samme preparat som preparat nr. 3, bortsett fra at sink-1,2-propylen-bis-dithiocarbamatet var erstattet med den samme mengde manganethylen-bis-dithiocarbamat inneholdende 89 % aktivt materiale. The same preparation as preparation no. 3, except that the zinc-1,2-propylene-bis-dithiocarbamate was replaced with the same amount of manganese ethylene-bis-dithiocarbamate containing 89% active material.

pH-verdien av en 4 %ig suspensjon av preparat nr. 4 i destillert vann var 9,15. The pH value of a 4% suspension of preparation no. 4 in distilled water was 9.15.

Preparat nr. 5: Preparation No. 5:

Samme preparat som preparat nr. 1, bortsett fra at trifenyltinnhydroxydet var erstattet med 12 g trifenyltinnklorid inneholdende 98 % aktivt materiale. The same preparation as preparation No. 1, except that the triphenyltin hydroxide was replaced by 12 g of triphenyltin chloride containing 98% active material.

pH-verdien av en 4 %ig suspensjon av preparat nr. 5 i destillert vann var 8. The pH value of a 4% suspension of preparation no. 5 in distilled water was 8.

Preparat nr. 6: (ikke ifolge oppfinnelsen) Preparation no. 6: (not according to the invention)

Samme preparat som preparat nr. 5, bortsett fra at sink-1,2-propylen-bis-dithiocarbamatet var erstattet med den samme mengde manganethylen-bis-dithiocarbamat inneholdende 89 % aktivt materiale. The same preparation as preparation no. 5, except that the zinc-1,2-propylene-bis-dithiocarbamate was replaced with the same amount of manganese ethylene-bis-dithiocarbamate containing 89% active material.

pH-verdien av en 4 %ig suspensjon av preparat nr. 6 i destillert vann var 9,2. The pH value of a 4% suspension of preparation no. 6 in distilled water was 9.2.

Disse ulike preparater blev påfort potetåkre ved på-sproytning under de folgende eksperimentelle betingelser: These different preparations were applied to potato fields by spraying under the following experimental conditions:

totalt aktivt materiale pr. hektar for henh. forste, annen og tredje behandling. Ved de folgende behandlinger blev det i hvert tilfelle påfort totalt 1,638 kg aktive materialer pr. hektar. total active material per hectares for first, second and third treatment. In the following treatments, a total of 1,638 kg of active materials were applied in each case. hectares.

Det er å merke at de påforte mengder er omtrent 50 % hoyere enn de normale mengder, slik at ulikhetene i fytotoksisitet kommer klart frem. Disse storre mengder berettiges også som folge av de ulike forhold som gjor sig gjeldende i praksis ved avsetningen av produkter som påfores ved sproytning på planter (ujevn grunn, vindkast, nedbremsing av traktoren i enden av åkeren, osv.). It should be noted that the amounts applied are approximately 50% higher than the normal amounts, so that the differences in phytotoxicity are clearly evident. These larger quantities are also justified as a result of the various conditions that apply in practice when depositing products that are applied by spraying on plants (uneven ground, gusts of wind, braking of the tractor at the end of the field, etc.).

Klimatiske betingelser: Climatic conditions:

Særlig gunstige for å frembringe symptomer på fytotoksisitet, grunnet fravær av enhver forekomst av torråte (bevirket av algesoppen Phytophtora infestans)i kontrollområdene under forsokene. Particularly favorable for producing symptoms of phytotoxicity, due to the absence of any occurrence of dry rot (caused by the algal fungus Phytophtora infestans) in the control areas during the trials.

Metode for testing av åkeren: Method for testing the field:

Forsoksåkeren var sammensatt av tre felter med seks underfelter som inneholdt 30 potetplanter, hvilke underfelter målte 4 m x 5 m, pluss et kontrollfelt med 90 potetplanter som målte 5 m x The experimental field was composed of three plots with six subplots containing 30 potato plants, which subplots measured 4 m x 5 m, plus a control plot with 90 potato plants measuring 5 m x

12 m. Hvert underfelt av hvert av feltene blev behandlet med et av 12 m. Each subfield of each of the fields was treated with one of

de seks ovennevnte preparater, slik at der blev oppnådd tre resultater pr. preparat, av hvilke middelverdien blev beregnet. the six above-mentioned preparations, so that three results were obtained per preparation, from which the mean value was calculated.

Bestemmelse av fytotoksisiteten: Determination of the phytotoxicity:

Ved å vurdere utseendet av plantens blader efter behand-lingen med det fungicide preparat (avbrenning av bladenes kanter og skjelignende utseende, flekker på bladene, morkfarvede årer) blev det gitt en verdi mellom O og 8 (O = ingen beskadigelse, 8 = maksimal beskadigelse) . Middelverdiene av resultatene som blev oppnådd ved dette forsok, er oppfort nedenfor. By assessing the appearance of the plant's leaves after treatment with the fungicidal preparation (burning of the edges of the leaves and spoon-like appearance, spots on the leaves, dark colored veins) a value between 0 and 8 was given (O = no damage, 8 = maximum damage ). The mean values of the results obtained in this experiment are listed below.

Denne tabell viser at preparater nr. 1, 3 og 5 ifolge oppfinnelsen har en fytotoksisitet som er like hoy eller lavere enn toksisiteten av preparater nr. 2, 4 og 6 ifolge teknikkens stand. This table shows that preparations no. 1, 3 and 5 according to the invention have a phytotoxicity which is as high or lower than the toxicity of preparations no. 2, 4 and 6 according to the state of the art.

Det vil også sees at de totale fytotoksisitetstall for preparatene ifolge oppfinnelsen (1 + 1,5 + 1 = 3,5) er markert lavere enn det totale tall for de kjente preparater (1 + 2 + 3,5 = 6,5). It will also be seen that the total phytotoxicity figures for the preparations according to the invention (1 + 1.5 + 1 = 3.5) are markedly lower than the total figures for the known preparations (1 + 2 + 3.5 = 6.5).

Likeledes er det å merke at preparater nr. 1, 2, 3 og 5 er bedre med hensyn til fytotoksisitet enn preparat nr. 4, hvilket preparat ikke desto mindre ofte benyttes i praksis med godt resultat og derfor kan tjene som en referansestandard. Likewise, it should be noted that preparations no. 1, 2, 3 and 5 are better with respect to phytotoxicity than preparation no. 4, which preparation is nevertheless often used in practice with good results and can therefore serve as a reference standard.

Virkning på storrelsen av avlingen: Effect on the size of the crop:

4 potetplanter blev fjernet fra midten av hvert av under-feltene. Det blev således oppnådd tre vektdata for hvert preparat som blev testet (pluss vektdataene for kontrollfeltene). Resultatene var som folger: 4 potato plants were removed from the center of each of the sub-fields. Three weight data were thus obtained for each preparation that was tested (plus the weight data for the control fields). The results were as follows:

Dersom de ovenstående resultater uttrykkes i antall kilo poteter pr. hektar, fåes folgende: If the above results are expressed in the number of kilograms of potatoes per hectares, the following is obtained:

De ovenfor angitte resultater viser meget klart den for-delaktige virkning av de fungicide preparater ifolge oppfinnelsen sammenlignet med de kjente preparater. Den stimulerende virkning av preparatene ifolge oppfinnelsen gjenspeiler sig også i at utbyttene pr. hektar ved anvendelse av preparater nr. 1, 3 og 5 er storre enn de som blev oppnådd på kontrollfeltet. På den annen side viser preparater nr. 2, 4 og 6 utbytter som i samtlige tilfeller er lavere enn utbyttene på kontrollfeltet. The above-mentioned results very clearly show the beneficial effect of the fungicidal preparations according to the invention compared to the known preparations. The stimulating effect of the preparations according to the invention is also reflected in the yields per hectares when using preparations no. 1, 3 and 5 are greater than those obtained in the control field. On the other hand, preparations no. 2, 4 and 6 show yields which are in all cases lower than the yields on the control field.

Statistisk bearbeiding av disse eksperimentelle resultater viser at: 1. Generelt sett gjor preparatene ifolge oppfinnelsen det mulig å oppnå markert storre utbytter av poteter enn dem som oppnåes med kjente preparater i hvilke dithiocarbamatet er ethylen-bis-dithiocarbamat. 2. Det mest betydningsfulle resultat oppnåes med blandinger som inneholder trifenyltinnhydroxyd (preparat nr. 1). Statistical processing of these experimental results shows that: 1. Generally speaking, the preparations according to the invention make it possible to obtain markedly greater yields of potatoes than those obtained with known preparations in which the dithiocarbamate is ethylene-bis-dithiocarbamate. 2. The most significant result is obtained with mixtures containing triphenyltin hydroxide (preparation no. 1).

Da kontrollfeltene under de ovenfor beskrevne forsok ikke blev angrepet av Phytophtora infestans, er det kun arten av de anvendte fungicide preparater som kan gjores ansvarlig for ulikhetene som blev påvist med hensyn til fytotoksisitet og utbytte. Grunnen til at preparater ifolge oppfinnelsen som inneholdt sink som kation, As the control fields during the trials described above were not attacked by Phytophtora infestans, only the nature of the fungicidal preparations used can be made responsible for the differences that were detected with regard to phytotoxicity and yield. The reason why preparations according to the invention which contained zinc as a cation,

i eksempel 1 blev sammenlignet med kjente preparater som inneholdt mangan som kation (og ikke sink) er den at de kjente preparater som inneholder mangankationet, er de mest effektive produkter som hittil er kjent, mens de tilsvarende sinkpreparater ikke anvendes i praksis. in example 1 was compared with known preparations containing manganese as a cation (and not zinc) is that the known preparations containing the manganese cation are the most effective products known to date, while the corresponding zinc preparations are not used in practice.

Eksempel 2 Example 2

Tilsvarende forsbk som de beskrevet i eksempel 1 blev utfort under anvendelse av et fungicid preparat i hvilket mengdeforholdet mellom den organiske tinnforbindelse og dithiocarbamatet var 1:0,2. I preparat A ifolge den foreliggende oppfinnelse var dithiocarbamatet sink-1,2-propylen-bis-dithiocarbamat, mens i preparat B var dithiocarbamatet manganethylen-bis-dithiocarbamat. I begge preparater A og B var den organiske tinnforbindelse trifenyltinnklorid. Arten av additivene og mengdeforholdet mellom disse var like- for preparatene A og B. Videre var de påforte mengder pr. hektar potetåker de samme. Corresponding experiments to those described in example 1 were carried out using a fungicidal preparation in which the quantity ratio between the organic tin compound and the dithiocarbamate was 1:0.2. In preparation A according to the present invention, the dithiocarbamate was zinc-1,2-propylene-bis-dithiocarbamate, while in preparation B the dithiocarbamate was manganese ethylene-bis-dithiocarbamate. In both preparations A and B, the organotin compound was triphenyltin chloride. The nature of the additives and the quantity ratio between these were the same for the preparations A and B. Furthermore, the stated amounts per hectares of potato crops the same.

pH-verdien av preparat A i form av en 4 %ig suspensjon i destillert vann var 6,44, mens pH-verdien av preparat B under, de samme betingelser var 9. The pH value of preparation A in the form of a 4% suspension in distilled water was 6.44, while the pH value of preparation B under the same conditions was 9.

Fytotoksisitetstall: Phytotoxicity figures:

Preparat A: 5,5 Preparation A: 5.5

Preparat B: 5,5 Preparation B: 5.5

Utbytte av poteter (4 planter) Yield of potatoes (4 plants)

Preparat A: 6,075 kg Preparation A: 6.075 kg

Preparat B: 5,79 kg Preparation B: 5.79 kg

Av det foregående vil det sees at fytotoksisiteten er hovedsakelig den samme for de to preparater, og at utbyttet av poteter er ca. 5 % storre for preparat A enn for preparat B, tiltross for at preparat A hadde sur pH. From the foregoing, it will be seen that the phytotoxicity is essentially the same for the two preparations, and that the yield of potatoes is approx. 5% greater for preparation A than for preparation B, despite the fact that preparation A had an acidic pH.

Det er å merke at i motsetning til i eksempel 1 hvor mengdeforholdet organisk tinnforbindelse:dithiocarbamat var ca- 1:3, blev der i eksempel 2 benyttet et tilsvarende forhold på 5:1. Folge-lig var mengden av den fytotoksiske bestanddel (trifenyltinnklorid) It should be noted that, in contrast to example 1, where the proportion of organic tin compound: dithiocarbamate was approximately 1:3, in example 2 a corresponding ratio of 5:1 was used. Consequently, the amount of the phytotoxic component (triphenyltin chloride) was

i forhold til bestanddelen som reduserer fytotoksisiteten (dithiocarbamatet) 15 ganger storre i eksempel 2. Det er derfor bare nor-malt at fytotoksisiteten i dette tilfelle er hoyere. Det vil like-vel sees at anvendelsen av preparatet ifolge oppfinnelsen gjor det mulig å oppnå, i surt medium, resultater med hensyn til fytotoksisiteten som tilsvarer dem som kan oppnåes bare i et basisk medium ved anvendelse av de kjente preparater. in relation to the component that reduces the phytotoxicity (the dithiocarbamate) 15 times greater in example 2. It is therefore only normal that the phytotoxicity is higher in this case. It will nevertheless be seen that the use of the preparation according to the invention makes it possible to obtain, in an acidic medium, results with respect to phytotoxicity which correspond to those which can be obtained only in a basic medium by using the known preparations.

Eksempel 3 Example 3

Dette eksempel viser den sterke fungicide virkning av preparatene ifolge oppfinnelsen. This example shows the strong fungicidal effect of the preparations according to the invention.

Preparatene som blev benyttet, var preparater nr. 1, 3 og 5 ifolge eksempel 1. Fungitoksisitetsforsokene blev utfort in situ på en avling av Alternaria tenuis ved inokkulering av fungici-det i et medium som var podet med mikroorganismen. The preparations used were preparations no. 1, 3 and 5 according to example 1. The fungitoxicity tests were carried out in situ on a crop of Alternaria tenuis by inoculating the fungicide in a medium inoculated with the microorganism.

En modersuspensjon inneholdende 0,5 g pr. liter av det fungicide preparat som skulle testes, blev tilberedt. En porsjon av denne suspensjon blev satt tilside som testsuspensjon inneholdende 500 d.p.ffl. av det fungicide preparat, og den gjenværende porsjon blev fortynnet til en suspensjon inneholdende 125 d.p.m. av det fungicide preparat. En andel av sistnevnte suspensjon settes tilside som testsuspensjon, og den gjenværende andel fortynnes påny til en suspensjon inneholdende 31,5 d.p.m. av det fungicide preparat. For-tynningen blev fortsatt på samme måte, slik at der blev erholdt suspensjoner inneholdende henholdsvis 7,8 og 1,9 d.p.m. av det fungicide preparat. A mother suspension containing 0.5 g per liters of the fungicidal preparation to be tested were prepared. A portion of this suspension was set aside as a test suspension containing 500 d.p.ffl. of the fungicidal preparation, and the remaining portion was diluted to a suspension containing 125 d.p.m. of the fungicidal preparation. A portion of the latter suspension is set aside as a test suspension, and the remaining portion is diluted again to a suspension containing 31.5 d.p.m. of the fungicidal preparation. The dilution was continued in the same way, so that suspensions were obtained containing respectively 7.8 and 1.9 d.p.m. of the fungicidal preparation.

20 ml av hver av disse fem suspensjoner blev inokkulert i Petri-skåler som hver inneholdt 20 ml standard agarmedium (frem-stillet ut fra"potetdekstrose Agar Difco") som var blitt podet med den anvendte fungusart. Derefter blev veksthastigheten bestemt på konvensjonell måte efter 5 dager, idet verdien O blev gitt dersom fungusarten ikke hadde utviklet sig idetheletatt, og verdien 10 blev gitt dersom fungusarten viste samme utvikling som en kontrollprove som ikke var blitt podet med det fungicide preparat. Verdiene 2-9 blev gitt for tilfeller mellom verdiene O og IO. De oppnådde resultater er oppfort i den nedenstående tabell: 20 ml of each of these five suspensions were inoculated into Petri dishes each containing 20 ml of standard agar medium (prepared from "Potato Dextrose Agar Difco") which had been inoculated with the fungus species used. The growth rate was then determined in the conventional manner after 5 days, with the value O being given if the fungus species had not developed completely, and the value 10 being given if the fungus species showed the same development as a control sample which had not been inoculated with the fungicidal preparation. The values 2-9 were given for cases between the values O and IO. The results obtained are listed in the table below:

Eksempel 4 Example 4

Dette eksempel viser at preparatene ifolge oppfinnelsen, som inneholder 1,2-propylen-bis-dithiocarbamater av andre kat-ioner enn sink, også har meget lav fytotoksisitet. This example shows that the preparations according to the invention, which contain 1,2-propylene-bis-dithiocarbamates of cations other than zinc, also have very low phytotoxicity.

Fytotoksisitetstestene blev utfort ved State Phyto-pharmaceutical Research Institute i Gembloux (Belgia), under anvendelse av de metoder som benyttes ved dette institutt. The phytotoxicity tests were carried out at the State Phyto-pharmaceutical Research Institute in Gembloux (Belgium), using the methods used at this institute.

Bonneplanter av sorten "US Refugee" blev dyrket enkelt-vis i potter i et drivhus. Bonneplantene blev underkastet fytotok-sisitetstester da de hadde nådd tofrobladstadiet og det forste tre-bladstadium. Under testene blev bladene påsproytet ved hjelp av en sproytepistol, inntil de var så våte at det dryppet av dem. Preparatet som skulle testes, blev anvendt i de folgende tre påforings-doser: 2,5 g/liter, 7,5 g/liter og 25 g/liter fuktbart pulver av en av sammensetningene 1-4 nedenfor. Det er å merke at den normale påforingsdose er bare 2,5 g/liter. 4 bonneplanter blev benyttet for hver konsentrasjon av aktivt materiale. Iakttagelse og vurdering av de fytotoksiske virkninger blev foretatt 8 dager efter påsproytnin-gen av de fungicide preparater. Det blev således bestemt en verdi (a) for tofrobladene, en verdi (b) for de trebladede blader og en verdi (c) for den "totale" virkning. Disse verdier blev efter mate-matisk bearbeidelse uttrykt som prosentsatser i overensstemmelse med den folgende skala: Bonne plants of the variety "US Refugee" were grown individually in pots in a greenhouse. The Bonne plants were subjected to phytotoxicity tests when they had reached the two-leaf stage and the first three-leaf stage. During the tests, the leaves were sprayed using a spray gun until they were so wet that they dripped off. The preparation to be tested was used in the following three application doses: 2.5 g/litre, 7.5 g/litre and 25 g/litre wettable powder of one of the compositions 1-4 below. It should be noted that the normal application dose is only 2.5 g/litre. 4 bean plants were used for each concentration of active material. Observation and evaluation of the phytotoxic effects was carried out 8 days after the spraying of the fungicidal preparations. A value (a) was thus determined for the dicot leaves, a value (b) for the trifoliate leaves and a value (c) for the "total" effect. After mathematical processing, these values were expressed as percentages in accordance with the following scale:

De oppnådde resultater er illustrert i den nedenstående tabell: The results obtained are illustrated in the table below:

Tabellen viser at selv når der anvendes en dose som er 10 ganger storre enn den normale dose, holder fytotoksisitetstallet sig stort sett i intervallet mellom O og meget svak fytotoksisitet. The table shows that even when a dose that is 10 times greater than the normal dose is used, the phytotoxicity figure remains mostly in the interval between 0 and very weak phytotoxicity.

Sammensetningen av preparatene 1-4 ifolge tabellen er gitt i det nedenstående. The composition of preparations 1-4 according to the table is given below.

Claims (2)

1. Fungicid plantevernmiddel med liten fytotoksisk virkning inneholdende trifenyltinnklorid, trifenyltinnacetat eller trifenyltinnhydroxyd eller blandinger derav, og ett eller flere metallsalter av alkylen-bis-dithiocarbaminsyrer, karakterisert ved at metallsaltene av alkylen-bis-dithiocarbaminsyrene er kalsium-,barium-, strontium-, magnesium-, kobber-, jern-, nikkel-, kobolt-, kadmium-, sink-eller mangansaltet av 1,2-propylen-bis-dithiocarbaminsyre.1. Fungicidal plant protection product with low phytotoxic effect containing triphenyltin chloride, triphenyltin acetate or triphenyltin hydroxide or mixtures thereof, and one or more metal salts of alkylene-bis-dithiocarbamic acids, characterized in that the metal salts of the alkylene-bis-dithiocarbamic acids are calcium, barium, strontium, the magnesium, copper, iron, nickel, cobalt, cadmium, zinc or manganese salt of 1,2-propylene-bis-dithiocarbamic acid. 2. Fungicid plantevernmiddel ifølge krav 1, karakterisert ved at trifenyltinnforbindelsen er trifenyltinnhydroxyd, og saltet av 1,2-propylen- -bis-dithiocarbaminsyre er sinksaltet.2. Fungicidal pesticide according to claim 1, characterized in that the triphenyltin compound is triphenyltin hydroxide, and the salt of 1,2-propylene-bis-dithiocarbamic acid is the zinc salt.
NO2889/69A 1968-07-12 1969-07-10 NO125565B (en)

Applications Claiming Priority (1)

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GB33332/68A GB1239977A (en) 1968-07-12 1968-07-12 Fungicidal compositions

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DE (1) DE1935174C3 (en)
ES (1) ES369366A1 (en)
FI (1) FI52265C (en)
FR (1) FR2012846A1 (en)
GB (1) GB1239977A (en)
IE (1) IE32691B1 (en)
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FI52265B (en) 1977-05-02
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IE32691L (en) 1970-01-12
FI52265C (en) 1977-08-10
BE735897A (en) 1970-01-12
NL162822C (en) 1980-07-15
FR2012846A1 (en) 1970-03-27
IE32691B1 (en) 1973-10-31
GB1239977A (en) 1971-07-21
ES369366A1 (en) 1971-06-01
DE1935174B2 (en) 1978-03-30
NL162822B (en) 1980-02-15
CH495700A (en) 1970-09-15
DE1935174A1 (en) 1970-02-19
DE1935174C3 (en) 1978-11-23

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