WO2020225723A1 - Composition de pymétrozine et d'éthion - Google Patents

Composition de pymétrozine et d'éthion Download PDF

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Publication number
WO2020225723A1
WO2020225723A1 PCT/IB2020/054239 IB2020054239W WO2020225723A1 WO 2020225723 A1 WO2020225723 A1 WO 2020225723A1 IB 2020054239 W IB2020054239 W IB 2020054239W WO 2020225723 A1 WO2020225723 A1 WO 2020225723A1
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WIPO (PCT)
Prior art keywords
composition
pymetrozine
combination
ethion
acceptable salt
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PCT/IB2020/054239
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English (en)
Inventor
Vishal PURECHA
Mukesh Sharma
Ashim Kumar Dutta
Vishwanath GADE
Ravikumar Suryanarayana SARAGUR
Hardik Y. PUROHIT
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Pi Industries Limited
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Publication of WO2020225723A1 publication Critical patent/WO2020225723A1/fr

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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
    • A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
    • A01N57/10—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds
    • A01N57/12—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds containing acyclic or cycloaliphatic radicals

Definitions

  • the present invention relates to a combination of pymetrozine and ethion and its composition.
  • the present invention relates to acomposition comprising of pymetrozineand ethion, methods of preparation ofsaid composition and use thereof for the control of a wide variety of undesired insect pests, and mites.
  • a typical challengein the field of crop protection is to reduce the dose rates of an active ingredient in order to reduce or avoid unfavorable environmental or toxicological effects whilst still allowing effectivepest control. Therefore, a combined application of an effective amount of insecticidesin uniform composition is a practical necessity.
  • the present invention relates to a pesticidal product that contains a combination ofactive substances, a method for controlling pests using this product, its use and the plant propagation organs treatedwith this product, as well as the use of combination for thepreparation of the product.
  • Pymetrozine is an insecticidal compound belonging to pyridine azomethine chemical class. Pymetrozine developed by Syngenta Crop Protection, Inc., as described in U.S. 4,931,439. Pymetrozine is classified under group 9B of the IRAC mode of action. It is used to control the pests, especially insects, more particularly insects of the orders Coleoptera, Diptera, Hemiptera, Hymenoptera, Isoptera, Lepidoptera, Orthoptera, Phiraptera, Psocoptera, Siphonaptera, Thysanoptera and Thysanura, especially sucking insects of the Aphididae family, which belongs to the order Hemiptera. Chemically, pymetrozine is 4,5-dihydro-6- methyl-4-(3-pyridylmethyleneamino)-l,2,4-triazin-3(2H)-one and has the following structure:
  • Ethion is an insecticidal compound, which belongs to organic thiophosphate chemical class. Ethion developed by FMC Corporation, as described in U.S. 2,873,228. Ethion is classified under group IB of the IRAC mode of action. It is used against the leaf-feeding insects, mites, scales, horn flies, gulf coast ticks, ear ticks, face flies, lice, stable flies, house flies. Chemically, ethion is O,O,O',O'-tetraethyl S,S '-methylene bis(phosphorodithioate).
  • a combination comprising pymetrozine and ethion provides an effective composition in controlling a wide variety of insect pests and mites.
  • the present invention provides a combination of pymetrozine and ethion with enhanced efficacy and spectrum as compared to use of pymetrozine and ethion alone.
  • the present invention provides a combination of pymetrozine and ethion. In another aspect, the present invention provides a combination of pymetrozine and ethion to control a wide variety of undesired insect pests and mites. In further aspect, the present invention is to provide longer residual control of the undesired insect pests and mites treated with the combination ofpymetrozine and ethion.
  • the present invention provides a composition of pymetrozine and ethionto control a wide variety of undesired insect pests and mites.
  • the present invention provides a composition comprisingpymetrozine and ethionthecomposition possesses insecticidal/acaricidalactivity.
  • the present invention provides a method for the preparation of the composition comprisingpymetrozine and ethion.
  • the present invention provides a method for improving crop health (phyto-tonic effect), comprising treating a plant with an effective amount of composition of pymetrozineandethion.
  • composition or “formulation” can be used interchangeably, unless stated otherwise, is meant to encompass, and are not limited to, compositions or formulations containing the combination of pymetrozine and ethion.
  • additive(s) refers to inert substances which are commonly used as diluent, to provide stability or to increase the activity profile of the composition or formulation with or without having agrochemical activity or direct effect on the undesired insect pests and mites.
  • surfactant(s) means a compound that, when dissolved in a liquid, reduces the surface tension of the liquid, which reduces the interfacial tension between two liquids or which reduces surface tension between a liquid and a solid.
  • stabilizer(s) refers to a substance capable of imparting resistance against physical or chemical deterioration or deformulation.
  • defoaming agent(s) refers to a chemical additive that reduces and hinders the formation of foam in the industrial process of liquids, semi-solids, or solids.
  • defoaming agent and anti-foaming agent can be used interchangeably.
  • thickener(s) refers to a polymeric material, which at a low concentration increases the viscosity of an aqueous solution and helps to stabilize the composition.
  • % refers to % weight; and % weight refers to % of the weight of respective component with respect to the total weight of the composition.
  • the term“locus” means a plant, plant parts, plant propagation material (preferably seed), soil, area, material or environment in which a pest is growing or may grow.
  • plant parts are understood to mean all above-ground and below ground parts and organs of plants, such as shoot, leaf, flower and root, examples including leaves, needles, stems, stalks, flowers, fruit-bodies, fruits and seeds, and also roots, tubers and rhizomes.
  • the plant parts also include harvested plants and vegetative and generative propagation material, for example seedlings, tubers, rhizomes, cuttings and seeds.
  • the term "effective amount" means the amount of the active substances in the compositions to achieve an observable effect on growth, including the effects of necrosis, death, retardation, prevention, and removal, destruction, or otherwise diminishing the occurrence and activity of the target organism.
  • the effective amount can vary for the various compositions used in the present invention.
  • An effective amount of the compositions will also vary according to the prevailing conditions such as desired pesticidal effect and duration, weather, target species, locus, mode of application, and the like.
  • pymetrozine encompasses pymetrozine or its agrochemically acceptable salt(s), derivative(s) or any other modified form ofpymetrozine.
  • ethion encompasses ethion or its agrochemically acceptable salt(s), derivative(s) or any other modified form ofethion.
  • the present invention provides a combination of pymetrozine and ethion.
  • the present invention provides a combination of pymetrozineand ethion to control a wide variety of undesired insect pests and mites.
  • the present invention provides an insecticidal combination of pymetrozine and ethion.
  • the present invention provides an acaricidal combination of pymetrozine and ethion.
  • the present invention is to provide longer residual control of the undesired insect pests and mites treated with the combination of pymetrozine and ethion.
  • ratio of pymetrozine and ethion depends on various factors such as, the undesired, insect pests and mites to be controlled, the degree of infestation, the climatic conditions, the characteristics of the soil and the application method, wherein ratio of pymetrozine and ethion is froml:10 to 1:1, preferably from 1:8 to 1:4, more preferably 1:5 or 1:7.5.
  • the present invention further provides a composition of pymetrozine and ethion for the control of a wide variety of undesired insect pests and mites.
  • the present invention provides a composition of pymetrozine and ethion, wherein the composition is used as insecticidal/ acaricidal composition.
  • the composition is selected from a wettable powder (WP), a water dispersible granule (WDG), a water dispersible tablet (WT), an ultra-low volume (ULV) liquid (UL), an ultra- low volume (ULV) Suspension Concentrate (SC), a water soluble powder (SP), a soluble concentrate (SL), a water soluble granule (SG), a suspo-emulsion (SE), granule (GR), an emulsifiable granule (EG), an oil-in-water emulsion (EW), an emulsifiable concentrate (EC), a micro-emulsion (ME), an oil dispersion (OD), a capsule suspension (CS), an aerosol (AE) or a mixed formulation of ZC (CS + SC), ZE (CS+SE), ZW (CS+EW).
  • WP wettable powder
  • WDG water dispersible granule
  • WT water dispersible tablet
  • UUV ultra-low
  • compositions may be manufactured by any process know in the art, such as,“Pesticide Formulation Guide” (edited by Pesticide Science Society of Japan, The Agricultural Formulation and Application Committee, published by Japan Plant Protection Association, 1997).
  • composition of the present invention comprises of pymetrozine and ethionin a wider ratio, in relation to various factors such as, the undesired insect pests and mites to be controlled, the degree of infestation, the climatic conditions, the characteristics of the soil and the application method, wherein the weight ratio of pymetrozine and ethionis from 1 : 10 to 1:1, preferably from 1:8 to 1:4, more preferably 1:5 or 1:7.5.
  • the present invention further provides a composition for the control of a wide variety of, insect pests and mites, wherein the weight percentage of pymetrozine or its acceptale salt(s) thereof is 2% to 80% and the weight percentage of ethionor its acceptable salt(s) thereof is 80% to 2%.
  • the total content of pymetrozine and ethionin the composition is selected in the weight range typically from 4% to 82%, preferably from 10% to 50%.
  • composition comprising organic or inorganic carrier material including agriculturally acceptable additivesis selected from the group comprising of solid carrier(s), liquid carrier(s), gaseous carrier(s), surfactant(s), binder(s), disintegrating agent(s), pH adjuster(s), thickener(s), preservative(s), anti-freezing agent(s), defoaming agent(s), extender(s), stabilizer(s) and/or coloring agent(s) or a combination thereof.
  • the composition may also contain if desired, one or more auxiliaries customary for crop protection compositions.
  • Solid carrier(s) is selected from the group comprising of, but not limited to, natural minerals such as quartz, talc, kaolin, pyrophyllite, montmorillonite, attapulgite, bentonite, kieselguhr, chalk, zeolite, calcite, sericite, acid clay, diatomaceous earth, natural rock, Fuller’s earth, meerschaum, gibbsite, dolomite or pumice; synthetic minerals such as precipitated silica, fumed silica, sodium silicate, alumina, aluminum hydroxide; inorganic salts such as calcium carbonate, ammonium sulfate or other ammonium salts, sodium sulfate, potassium chloride; organic materials such as urea, solid polyoxyethylene, solid polyoxypropylene, polyethylene, polypropylene, lactose, starch, lignin, cellulose, cottonseeds hulls, wheat flour, soybean flour, wood flour, walnut shell flour, plant powders, sawdust,
  • Liquid carrier(s) is selected from the group comprising of, but not limited to, water; alcohols such as ethanol, propanol, n-octanol, isopropanol ethylene glycol, diethylene glycol, propylene glycol, polyethylene glycol, glycerin; polyol ethers such as ethylene glycol monopropyl ether, diethylene glycol monomethyl ether, dipropylene glycol dimethyl ether; ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone; ethers such as dipropyl ether, dioxane, tetrahydrofuran; aliphatic hydrocarbons such as normal paraffin, isoparaffin, kerosene, mineral oil; aromatic hydrocarbons such as xylene, toluene, naphthene, solvent naphtha, solvent C9, solvent CIO, solvent C12, solvesso
  • Gaseous carrier(s) is selected from the group comprising of, but not limited to, liquefied petroleum gas, air, nitrogen, carbon dioxide or dimethyl ether. These gaseous carriers may be used alone or in combination thereof.
  • Surfactant(s) are nonionic or anionic surfactants or a combination of these surfactants. It is preferred to use one or more than one kind of surfactant.
  • Surfactant(s) is selected from the group comprising of, but not limited to, sugar esters such as sorbitan monolaurate, polyoxyethylene sorbitan monolaurate; alkyl polyglucoside such as decyl glucoside; polyoxyethylene alkyl ethers such as polyoxyethylene lauryl ether or polyoxyethylene coconut fatty alcohol ether; polyoxyethylene alkynyl ether such as 2,4,7,9-tetramethyl-5-decyn-4,7-diol ether; polyoxyethylene aryl ethers such as polyoxyethylene nonylphenyl ether or polyoxyethylene tristyrylphenyl ether; polyoxyethylene vegetable oil ethers such as polyoxyethylene castor oil or polyoxyethylene hydrogenated castor oil; polyoxyethylene fatty acid esters such as polyoxyethylene monolaurate, polyoxiethylene distearate or polyoxyethylene resin acid ester; polyoxyethylene polyoxypropylene block copolymers (such as Pluronic ® ); poly
  • Binder(s) or adhesive-imparting agent(s) is selected from the group comprising of, but not limited to, polyvinyl alcohol, dextrin, denatured dextrin, soluble starch, guar gum, xanthan gum, sucrose, polyvinylpyrrolidone, gum arabic, polyvinyl acetate, sodium polyacrylate, carboxymethyl cellulose or its salt, carboxymethylcellulose dextrin, bentonite, polyethylene glycol having an average molecular weight of 6,000 to 20,000, polyethylene oxide having average molecular weight of 100,000 to 5,000,000, natural phosphatide such as cephalinic acid or lecithin. These binders or adhesive-imparting agents may be used alone or in combination thereof.
  • Disintegrating agent(s) is selected from the group comprising of, but not limited to, sodium tripolyphosphate, stearic acid metal salt, cellulose powder, dextrin, methacrylate copolymer, polyvinylpyrrolidone, polyaminocarboxylic acid chelate compound, styrene sulfonate/isobutylene/maleic anhydride copolymer, starch/polyacrylonitrile graft copolymer, sodium hexametaphosphate, carboxymethyl cellulose, sodium polycarbonate, bentonite. These disintegrating agents may be used alone or in combination thereof.
  • pH adjuster(s) is selected from the group comprising of, but not limited to, sodium or potassium carbonate, sodium or potassium hydrogen carbonate, sodium or potassium dihydrogenphosphate, disodium or dipotassium hydrogenphosphate, citric acid, malic acid and triethanolamine.These pH adjusters may be used alone or in combination thereof.
  • Thickener(s) is selected from the group comprising of, but not limited to, water-soluble polymer and inorganic fine powder, wherein water-soluble polymer such as xanthan gum, welan gum, guar gum, polyvinyl alcohol, carboxymethylcellulose, polyvinylpyrrolidone, carboxyvinyl polymer, acrylic polymer, starch derivative or polysaccharide; or an inorganic fine powder selected from high purity silica, bentonite, white carbon. These thickeners may be used alone or in combination thereof.
  • water-soluble polymer such as xanthan gum, welan gum, guar gum, polyvinyl alcohol, carboxymethylcellulose, polyvinylpyrrolidone, carboxyvinyl polymer, acrylic polymer, starch derivative or polysaccharide
  • inorganic fine powder selected from high purity silica, bentonite, white carbon.
  • Preservative(s) is selected from the group comprising of, but not limited to, potassium sorbate, 4-hydroxybenzoic acid esters, 2-methyl-4-isothiazolin-3-one, 5-chloro-2-methyl-4- isothiazolin-3-one, l,2-benzisothiazolin-3-one (Proxel ® GXL). These preservatives may be used alone or in combination thereof.
  • Anti-freezing agent(s) is selected from the group comprising of, but not limited to, polyhydric alcohol such as ethylene glycol, polyethylene glycol, diethylene glycol, propylene glycol, and glycerol. These anti-freezing agents may be used alone or in combination thereof.
  • Defoaming agent(s) is selected from the group comprising of, but not limited to, silicone compounds such as polysiloxane, polydimethylsiloxane and organic fluorine compounds. These defoaming agents may be used alone or in combination thereof.
  • Extender(s) is selected from the group comprising of, but not limited to, silicon type surfactant, a cellulose powder, dextrin, processed starch, a polyaminocarboxylic acid chelate compound, crosslinked polyvinylpyrrolidone, maleic acid and styrene, methacrylic acid copolymer, half ester of polymer of polyhydric alcohol with dicarboxylic anhydride, or water-soluble salt of polystyrene sulfonic acid. These extenders may be used alone or in combination thereof.
  • Stabilizer(s) is selected from the group comprising of, but not limited to, drying agents such as zeolite, quicklime or magnesium oxide; antioxidant agents such as phenol type, amine type, sulfur type or phosphorus type; or ultraviolet absorbers such as salicylic acid type or a benzophenone type. These stabilizers may be used alone or in combination thereof.
  • Coloring agent(s) is selected from the group comprising of, but not limited to, inorganic pigments such as iron oxide, titanium oxide or prussian blue; organic dye such as alizarin dye, azo dye, metal phthalocyanine dye. These coloring agents may be used alone or in combination thereof.
  • the content of the carrier is selected typically in weight range from 5% to 95%, preferably from 20% to 90%; the content of the surfactant is selected from the range of typically from 0.1% to 30 %, preferably from 0.5% to 10%, and the content of the other additives is selected from the range of typically from 0.1% to 30%, preferably from 0.5% to 10%.
  • step (a) preparation of pymetrozine suspension by addition of pymetrozine or its acceptable salt(s) and agrochemically acceptable additives selected from surfactant(s), carrier(s) and other additive(s) uniformly and optionally milling to obtain a desired particle size, c) mixing the composition of step (a) and step (b) in a desired proportion by addition of agrochemically acceptable additives and solvents.
  • agrochemically acceptable additives selected from surfactant(s), carrier(s) and other additive(s) uniformly and optionally milling to obtain a desired particle size
  • composition of the present invention can be applied by any one of the methods selected from atomization, spreading, dusting, spraying, diffusion, immersion, irrigation, injection, mixing, sprinkling (water immersion), foaming, dressing, coating, blasting, fumigation, smoking, smog and painting.
  • the present invention provides a method of controlling wide variety of, insect pests and mites, with an effective amount of a composition of pymetrozine and ethion.
  • composition of pymetrozine and ethion of the present invention may further compriseof insecticide(s), fungicide(s), nematicide(s), acaricide(s), safener(s), or herbicide(s)or any combination thereof.
  • the present invention provides a method of controlling wide variety of undesired pathogenic microorganism with an effective amount of the composition/combination of pymetrozine and ethion with a fungicidal compound.
  • the combination or composition of the present invention provides a nonagronomic (other than field crops) application such as application on horticultural crops (e.g., greenhouse, nursery or ornamental plants not grown in a field), residential, commercial and industrial structures, turf (e.g., sod farm, pasture, golf course, lawn, sports field, etc.).
  • the present invention provides a method for controllinginsect pests and mites with an effective amount of the composition of pymetrozine and ethion.
  • Insect pests or mites is selected from the order of moths and butterflies ( Lepidoptera ), beetles (Coleoptera), flies, mosquitoes ( Diptera ), thrips ( Thysanoptera ), termites ( Isoptera ), cockroaches (Blattaria - Blattodea), true bugs ( Hemiptera ), crickets, grasshoppers, locusts ( ' Orthoptera ), arachnids ( Acarina ), fleas ( Siphonaptera ), silverfish, firebrat ( Thysanura ), millipedes ( Diplopoda ), earwigs ( Dermaptera ), lice ( Phthiraptera ), or plant parasitic nematodes.
  • lepidopterans for example Agrotis ypsilon, Agrotis segetum (cutworm), Alabama argillacea, Anticarsia gemmatalis, Argyresthia conjugella, Autographa gamma, Bupalus piniarius, Cacoecia murinana, Capua reticulana, Cheimatobia brumata,
  • Dichromothrips corbetti Dichromothrips corbetti, Dichromothrips ssp., Frankliniella fusca, Frankliniella occidentalis, Frankliniella tritici, Scirtothrips citri (Citrus thrips), Thrips oryzae, Thrips palmi, Thrips tabaci, and Drepanothrips reuteri (grape thrips) termites ( Isoptera ), e.g.
  • Calotermes flavicollis Leucotermes flavipes, Fleterotermes aureus, Reticulitermes flavipes, Reticulitermes virginicus, Reticulitermes lucifugus, Termes natalensis, and Coptotermes formos anus, booklice, barklice or barkflies ( Psocoptera ), e.g Liposcelis bostrychophila, Liposcelis brunnea, Liposcelis fusciceps, Liposcelis hirsutoides, Liposcelis decolor, Liposcelis corrodens, Liposcelis silvarum, Liposcelis deltachi, Liposcelis entomophila, Liposcelis rufa, Liposcelis formicaria, Liposcelis ornata, Liposcelis paeta, Liposcelis pearmani, Liposcelis mendax, Liposcelis bicolor, Lepinotus warmthelis, Lepinotus an
  • Blattella germanica Blattella asahinae, Penplaneta americana, Periplaneta japonica, Periplaneta brunnea, Periplaneta fuligginosa, Periplaneta australasiae, and Blatta orientalis, true bugs ( Flemiptera ), e.g.
  • Atta cephalotes Atta capiguara, Atta cephalotes, Atta laevigata, Atta robusta, Atta sexdens, Atta texana, Crematogasterspp., Hoplocampa minuta, Hoplocampa testudinea, Monomorium pharaonis, Solenopsis geminata, Solenopsis invicta, Solenopsis richteri, Solenopsis xyloni, Pogonomyrmex barbatus, Pogonomyrmex californicus, Pheidole megacephala, Dasymutilla occidentalis, Bombus spp.
  • Vespula squamosa Paravespula vulgaris, Paravespula pennsylvanica, Paravespula germanica, Dolichovespula maculata, Vespa crabro, Polistes rubiginosa, Camponotus floridanus, and Amsterdampithema humile, crickets, grasshoppers, locusts ( Orthoptera ), e.g.
  • Arachnoidea such as arachnids ( Acarina ), e.g. of the families Argasidae, Ixodidae and Sarcoptidae, such as Amblyomma americanum, Amblyomma variegatum, Ambryomma maculatum, Argas persicus, Boophilus annulatus, Boophilus decoloratus, Boophilus microplus, Dermacentor silvarum, Dermacentor andersoni, Dermacentor variabilis, Hyalomma truncatum, Ixodes ricinus, Ixodes rubicundus, Ixodes scapularis, Ixodes holocyclus, Ixodes pacificus, Ornithodorus moubata, Ornithodorus hermsi, Ornithodorus turicata, Ornithonyssus bacoti, Otobius megnini, Dermanyssus gallina
  • Tetranychus cinnabarinus Tetranychus kanzawai, Tetranychus pacificus, Tetranychus telarius and Tetranychus urticae, Panonychus ulmi, Panonychus citri (citrus red mite), and Oligonychus pratensis
  • Araneida e.g. Latrodectus mactans, and Eoxosceles reclusa, fleas ( Siphonaptera ), e.g.
  • Ctenocephalides felis Ctenocephalides canis, Xenopsylla cheopis, Pulex irritans, Tunga penetrans, and Nosopsyllus fasciatus, silverfish, firebrat ( Thysanura ), e.g. Lepisma saccharina and Thermobia domestica, centipedes ( Chilopoda ), e.g. Scutigera coleoptrata,
  • Phthiraptera e.g. Pediculus humanus capitis, Pediculus humanus corporis, Pthirus pubis, Haematopinus eurystemus, Haematopinus suis, Linognathus vituli, Bovicola bovis, Menopon gallinae, Menacanthus stramineus and Solenopotes capillatus, plant parasitic nematodes such as root-knot nematodes, Meloidogyne arenaria, Meloidogyne chitwoodi, Meloidogyne exigua, Meloidogyne hapla, Meloidogyne incognita, Meloidogyne javanica and other Meloidogyne species; cyst nematodes, Globodera rostochiensis, Globodera pallida, Globodera tabacum and other Globodera species, Heterodera avenae, Heterodera
  • the present invention provides an insecticidal combination/composition comprising of pymetrozine and ethion used to control virus transmitted diseases including vector-bome plant disease, aphid transmitted viruses (including persistent, semi-persistent and non-persistent), whitefly transmitted viruses, hopper transmitted viruses and psyllid transmitted viruses in various crops such as potatoes, peppers, tomatoes, okra, rice, corn and citrus.
  • virus transmitted diseases including vector-bome plant disease, aphid transmitted viruses (including persistent, semi-persistent and non-persistent), whitefly transmitted viruses, hopper transmitted viruses and psyllid transmitted viruses in various crops such as potatoes, peppers, tomatoes, okra, rice, corn and citrus.
  • the present invention provides aninsecticidal combination/composition comprising of pymetrozine and ethion to control the insect pests and mitesfrom the order of Coleoptera, Diptera, Hemiptera, Hymenoptera, Isoptera, Lepidoptera, Orthoptera, Phiraptera, Psocoptera, Siphonaptera, Acarina, Thysanura, and Thysanoptera insects, more preferably used to control the insect pests brown plant hopper, leaf hoppers, aphids, whiteflies and Helicoverpa armigera.
  • the present invention provides an insecticidal combination or composition comprising of pymetrozine and ethion to control the insect pests and mites on economically importantcrops such as rice, peppers, soybean, cotton, chick pea, pigeon pea, tea, potato, and tomato.
  • composition of the present invention used to control a wide variety of undesired insect pests and mites, is advantageous, for several purposes, e.g.:
  • the present invention provides a combination/composition that shows enhanced action against undesired insect pests and mites, in comparison to the control rates that are possible with the individual compounds and/or suitable for improving the health of plants when applied to plants, parts of plants, plant propagation materials, or at their locus of their growth.
  • the combination or the composition of the present invention is particularly important for controlling a multitude of undesired insect pests and mites, on various cultivated plants or plant parts, such as cereals, e.g. wheat, rye, barley, triticale, oats or rice; beet, e.g. sugar beet or fodder beet; fruits, such as pomes, stone fruits or soft fruits, e.g.
  • the rate of application amount varies depending on, for example, the blending ratio of an active ingredient, a metrological condition, a dosage form, an application time, an application method, an application place, a pest to be controlled, and a target crop, in ordinary cases.
  • the application rates of the active ingredients in the mixture according to the invention are preferably from 2500 to 500g/l/ha, more preferably from 1500 to 750g/l/ha, most preferably from 1250to 750g/l/ha.
  • the present invention provides a method for improving crop health (phyto-tonic effect), comprising treating a plant with an effective amount of composition of pymetrozine and ethion.
  • ethion emulsion The POE- POP block copolymer (low HLB) was first mixed with 80% of the total water in the recipe to form a homogeneous solution. Next, the POP block copolymers (high HLB) were mixed with paraffin to which ethion was slowly added with constant stirring. Both these mixtures along with pymetrozine was added to the colloidal mill. After operating the mill at 5000-8000 rpm for about 10 minutes, the particle size of the emulsion was determined in a Malvern Particle Sizer. The colloidal mill was continued to operate till a particle size of 2-8 micron was obtained.
  • Ethion 30 parts was added portion wise into a mixture of precipitated silica 25 parts and diatomaceous earth 10 parts under mixing in a high shear mixer. After mixing well, kaolin clay 21 parts, pymetrozine 6 parts, sodium alkylbenzene sulfonate 4 parts, sodium ligno sulfonate 2 parts and sodium naphthalene sulfonate formaldehyde condensate 2 parts were added and mixed well in a high shear mixer. The mixture was milled by an air jet mill.
  • Both insecticides either as solo or in combination were applied twice as foliar spray with knapsack sprayer having a delivery of about 500 L/hectare of spray solution through a flat fan nozzle at a spray pressure of 20-25 psi at 40 days after transplanting (1 st application) and after 15 days of 1 st application (2 nd application). Care was taken to avoid drift of spray solution to adjacent experimental plots.
  • the data of planthopper that is Nilaparvatalugens (brown planthopper (BPH)) and Sogatellafurcifera (white backed planthopper (WBPH)) count were collected from 5 tagged rice hills (randomly selected and tagged) from each plot at one day before 1st application (pre count) and at 7 and 15 days after every applications.
  • the obtained data was analyzed by calculating percentage reduction in plant hopper over untreated control and at the time of rice harvesting grain yields were recorded from net plot area and compared among treatments.
  • a synergistic effect of the combination is always present when the insecticidal activity of the active compound combinations exceeds the total of the activities of the active insecticide when applied individually. So, the expected activities for three combinations of two active compounds were also calculated by using the Colby’s formula (Colby, S.R. "Calculating synergistic and antagonistic responses of herbicide combination", Weeds, Vol. 15, pages 20- 22; 1967).
  • E represents the expected percentage of control of the specific insect for the combination of two insecticide at defined doses (for example equal to x and y respectively)
  • x is the percentage of control observed for that insect by the compound (1) at a given dose
  • y is the percentage of control observed for the same insect by the compound (2) at a defined dose.

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Abstract

La présente invention concerne une combinaison de pymétrozine et d'éthion avec sa composition et un procédé de lutte contre une grande variété d'insectes nuisibles et d'acariens pour une plante, lequel comprend le traitement de la plante/de parties de la plante et d'une région autour de la plante. La présente invention concerne également une efficacité améliorée contre les nuisibles par rapport à des composants individuels de ladite combinaison. La combinaison élargit également le spectre et permet d'obtenir des effets résiduels plus longs contre des insectes nuisibles et des acariens. La combinaison permet également d'améliorer la santé des plantes.
PCT/IB2020/054239 2019-05-06 2020-05-05 Composition de pymétrozine et d'éthion WO2020225723A1 (fr)

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IN201911018099 2019-05-06
IN201911018099 2019-05-06

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WO2020225723A1 true WO2020225723A1 (fr) 2020-11-12

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2873228A (en) 1956-07-16 1959-02-10 Fmc Corp Pesticidal phosphorus esters
US4931439A (en) 1987-10-16 1990-06-05 Ciba-Geigy Corporation Pesticides
FR2720230A1 (fr) 1994-05-30 1995-12-01 Ciba Geigy Ag Produit parasiticide contenant une combinaison synergétique de substances actives à base de pymétrozine.
CH689326A5 (de) 1995-04-10 1999-02-26 Novartis Ag Pestizides Kombinationsmittel enthaltend Pymetrozine.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2873228A (en) 1956-07-16 1959-02-10 Fmc Corp Pesticidal phosphorus esters
US4931439A (en) 1987-10-16 1990-06-05 Ciba-Geigy Corporation Pesticides
FR2720230A1 (fr) 1994-05-30 1995-12-01 Ciba Geigy Ag Produit parasiticide contenant une combinaison synergétique de substances actives à base de pymétrozine.
CH689326A5 (de) 1995-04-10 1999-02-26 Novartis Ag Pestizides Kombinationsmittel enthaltend Pymetrozine.

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Pesticide Formulation Guide", 1997, JAPAN PLANT PROTECTION ASSOCIATION
COLBY, S.R.: "Calculating synergistic and antagonistic responses of herbicide combination", WEEDS, vol. 15, 1967, pages 20 - 22, XP001112961

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