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WO1998002043A1 - Herbicides synergiques - Google Patents

Herbicides synergiques Download PDF

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Publication number
WO1998002043A1
WO1998002043A1 PCT/EP1997/003474 EP9703474W WO9802043A1 WO 1998002043 A1 WO1998002043 A1 WO 1998002043A1 EP 9703474 W EP9703474 W EP 9703474W WO 9802043 A1 WO9802043 A1 WO 9802043A1
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WO
WIPO (PCT)
Prior art keywords
weight
plants
anilofos
combination
propanil
Prior art date
Application number
PCT/EP1997/003474
Other languages
German (de)
English (en)
Inventor
Hernando Pabon
Original Assignee
Hoechst Schering Agrevo Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst Schering Agrevo Gmbh filed Critical Hoechst Schering Agrevo Gmbh
Priority to AU33457/97A priority Critical patent/AU3345797A/en
Publication of WO1998002043A1 publication Critical patent/WO1998002043A1/fr

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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
    • 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
    • A01N57/14—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds containing aromatic radicals

Definitions

  • the invention relates to combinations of herbicides which can be used to control harmful plants in crops
  • Combinations of herbicides with different mechanisms of action may be suitable for solving the above-mentioned problems.However, the search for suitable combination partners, with which the ineffectiveness of the individual active compound in some harmful plants or resistant harmful plants is to be compensated for, is increased by physical or physiological intolerance of the combination active compounds Side effects in crops are more difficult Combination active substances that have an over-additive effect, ie synergistic effect in pest plants, were ideal. However, due to the relatively low application rate of the individual active ingredients in the combination, they can be used without giving rise to any significant harmful effects on crop plants. However, such beneficial synergistic effects can practically never be predicted for combination active ingredients.
  • the herbicide Propanil i. H. N- (3,4-dichlorophe ⁇ yl) propanoic acid amide
  • cereals such as, for. B. rice and wheat, preferably in rice at a rate of 2.5 to 5 kg / ha of active substance in the post-emergence method, in particular harmful plants of the type Amaranthus retroflexus, Digitaria spp., Echinochloa spp., Panicum spp. and Setaria spp.
  • harmful plants of the type Amaranthus retroflexus Digitaria spp., Echinochloa spp., Panicum spp. and Setaria spp.
  • the Pesticide Manual see "The Pesticide Manual", British Crop Protection Council & The Royal Society of Chemistry, UK, 10th edition 1994; hereinafter referred to as "The Pesticide Manual"
  • herbicide Anilofos d. H. S-4-Ch! Or-N-isopropylcarbaniloylmethyl-dithiophosphoric acid dimethyl ester, for combating grasses such as Echinochloa, Cyperus, Fimbristylis and Scirpus spp. used in rice crops (see "The Pesticide Manual", 10th edition 1994).
  • the invention therefore relates to herbicidal compositions, characterized by an effective content of a combination of A) a compound of formula (A)
  • the combination of the active ingredients can be used in a conventional manner, either by spray application of a spray broth prepared from individual formulations of the active substances in the tank mix or a spray broth prepared by dilution with water from a mixed formulation of the active substances are common for the application of the individual active ingredients and enable a common application.
  • propanil is absorbed and acted less by the roots than by the green parts of the plant, propanil is primarily suitable for application in the post-emergence process.
  • Anilofos on the other hand, is both leaf and soil-effective.Because of the properties of propanil, however, the combination according to the invention is preferably applied by spraying a spray booth Post-emergence method applied to the plants
  • the application can also be carried out by successive applications of the individual active ingredients (A) and (B), the possible time interval in Preliminary tests can be determined
  • the active ingredients (A) and (B) can optionally also be used in combination with other active pesticide ingredients
  • the application rate of a single active ingredient in the combination is significantly reduced in comparison with the application rate of the individual active ingredient in question when used alone.
  • the optimal choice of the weight ratio and the application rates depends, for example, on the stage of development of the weeds or weeds, weed spectrum, environmental factors and climatic conditions or also depending on the type of additional crop protection agents used
  • the weight ratios of the combined herbicides (A) and (B) can therefore vary within wide limits, they are generally between 20 1 and 1 1, preferably 12 1 and 3 1, in particular 10 1 and 4 1, based on the ratio ( A) (B)
  • the application rate for the herbicide (A) (propanil) in the combination is generally in the range from 0.5 to 4.5 kg, preferably 1 to 3.5 kg, in particular 1.5 to 3 kg of active substance per hectare
  • the application rate for the herbicide (B) (anilofos) in the combination is generally in the range from 50 to 1000 g, preferably 100 to 800 g, in particular 200 to 500 g of active substance per hectare
  • the combinations of the compounds of the formulas (A) and (B) according to the invention have excellent herbicidal activity against a broad spectrum of economically important mono- and dicotyledonous harmful plants.
  • perennial weeds which are difficult to control and which sprout from rhizomes, rhizomes or other permanent organs are also found the active substances are usually applied in the post-emergence process, preferably in the early post-emergence process.
  • some representatives of the monocotyledonous and dicotyledonous weed flora can be mentioned, which can be controlled by the compounds according to the invention, without being restricted to certain species by the name should be done
  • the monocotyledon weed species for example, species from the Echinochloa, Panicum, Digita ⁇ a, Seta ⁇ a, Ischaemum species and Cyperus species from the annual group are well recorded.
  • species such as Amaranthus should be emphasized
  • the active compound combinations have excellent herbicidal activity against monocotyledonous and dicotyledon weeds, rice crops from sown or transplanted rice are only insignificantly damaged or not at all harmed. Other useful plants, preferably cereal plants, are not very badly damaged during application good for selective control of undesired plant growth in the corresponding agricultural crops
  • the invention also relates to herbicidal compositions which contain combinations of active compounds (A) and (B) and customary formulation auxiliaries
  • the combinations according to the invention and their individual active substances can be formulated in various ways, depending on which biological and / or chemical-physical parameters are specified.
  • Possibility of formation include, for example, powdered powders (WP), water-soluble powders (SP), water-soluble concentrates, emulsifiable concentrates ( EC), emulsions (EW), such as oil-in-water and water-in-oil emulsions, sprayable solutions, suspension concentrates (SC), dispersions based on oil or water, oil-miscible solutions, capsule suspensions (CS), dusting agents (DP ), Pickling agents, granules for litter and soil application, granules (GR) in the form of micro, spray, elevator and adsorption granules, water-dispersible granules (WG), water-soluble granules (SG), ULV formulations, microcapsules and waxes
  • WP powdered powders
  • SP water-soluble powders
  • EC
  • combinations with other pesticidally active substances such as, for example, insecticides, acacids, other herbicides, fungicides, safeners, growth regulators and / or fertilizers, can also be prepared, for example in the form of a finished formulation or as a tank mix
  • Spray powders are preparations which are uniformly dispersible in water and, in addition to the active ingredient, in addition to a diluent or inert substance, also surfactants of an ionic and / or nonionic type (wetting agents, dispersants), for example polyoxyethylated alkylphenols, polyoxethylated fatty alcohols, polyoxethylated fatty amines, fatty alcohol polyglycol ether sulfates, alkanesulfonates, alkylbenzene sulfonates, alkylbenzene sulfonates , 2,2'-d ⁇ naphthylmethane-6,6'-d ⁇ sulfonsauresodium, dibutylnaphthalenesulfonsauresodium or oleoylmethyltaunnsauresodium contain
  • the herbicidal active ingredients are finely ground, for example, in
  • Emulsifiable concentrates are prepared by dissolving the active ingredients in an organic solvent, e.g. butanol, cyclohexanone, dimethylformamide, xylene or higher-boiling aromatics or hydrocarbons or mixtures of the organic solvents with the addition of one or more ionic and / or nonionic surfactants (emulsifiers).
  • organic solvent e.g. butanol, cyclohexanone, dimethylformamide, xylene or higher-boiling aromatics or hydrocarbons or mixtures of the organic solvents.
  • ionic and / or nonionic surfactants emulsifiers
  • alkylarylsulfonic acid calcium salts such as Ca-dodecylbenzenesulfonate or nonionic emulsifiers
  • fatty acid polyglycol esters alkylaryl polyglycol ethers, fatty alcohol polyglycol ethers, propylene oxide-ethylene oxide condensation products, alkyl polyethers, sorbitan esters such as, for example, sorbitan oxyethyl fatty acid ester esters, polyphenol fatty acid sorbitan fatty acid such as borbitan fatty acid polybutyl ester or polybutyl sorbitol such as borbitan fatty acid polybutyl sorbetate
  • Dusting agents are obtained by grinding the active ingredients with finely divided solid substances, e.g. talc, natural clays such as kaolin bentonite and pyrophyllite or diatomaceous earth
  • Suspension concentrates can be water- or oil-based. They can be prepared, for example, by wet grinding using commercially available pearl mills and, if appropriate, addition of surfactants, such as those already listed above for the other types of formulation
  • Emulsions e.g. B OI-in water emulsions (EW) can be prepared, for example, by means of stirrers, colloid mills and / or static mixers using aqueous organic solvents and optionally surfactants, such as those already listed above for the other types of formulation
  • Granules can either be produced by spraying the active ingredients onto adsorbable, granulated inert material or by applying active ingredient concentrates using adhesives, e.g. polyvinyl alcohol, polyacrylic acid sodium or mineral oils, on the surface of carriers such as sand, kaolinites or granulated inert material granulated in the usual way for the production of fertilizer granules - if desired in a mixture with fertilizers
  • adhesives e.g. polyvinyl alcohol, polyacrylic acid sodium or mineral oils
  • Water-dispersible granules are usually produced by the usual methods such as spray drying, fluidized bed granulation, plate granulation, mixing with high-speed mixers and extrusion without solid inert material
  • the agrochemical preparations generally contain 0.1 to 99% by weight, in particular 0.1 to 95% by weight, of active compounds of the formula (A) and / or (B)
  • the active ingredient concentration in wettable powders is, for example, about 10 to 90% by weight, the remainder to 100% by weight consists of customary formulation constituents. In the case of emulsifiable concentrates, the active ingredient concentration can be about 1 to 90% by weight. Dust-like formulations contain, for example, 1 to 30, mostly 5 to 20% by weight of active ingredient. Sprayable solutions, for example 0.05 to 80, mostly 2 to 50% by weight of active ingredient. In the case of water-dispersible granules, the active ingredient content depends in part on whether the active compound is liquid or solid and which granulation aids, fillers, etc. are used in water-dispersible granules the active substance content is, for example, between 1 and 95% by weight, mostly between 10 and 80% by weight
  • the active ingredient formulations mentioned may contain the customary adhesives, wetting agents, dispersants, emulsifiers, penetrants, preservatives, antifreeze agents and solvents, fillers, carriers and dyes, defoamers, evaporation inhibitors and agents which influence the pH and viscosity
  • active ingredients such as those described, for example, in Weed Research 26, 441-445 (1986) or "The Pesticide Manual", 10th edition, 1994 and cited there, can also be used as combination partners for the active ingredients according to the invention in mixture formulations or in the tank mix Literature are preferably described for use in rice crops
  • the formulations available in commercial form are optionally diluted in the customary manner, for example in the case of wettable powders, emulsifiable concentrates, dispersions and water-dispersible granules by means of water, and then onto the plants, parts of plants or the agricultural or industrial soil or the area under cultivation on which the plants stand or in which they grow or are present as seeds, this also includes special application variants as are customary in rice cultivation, for example the watering application, in which the herbicidal compositions are applied to the backwater of the irrigated area, dust-like preparations, Soil or scatter granules and sprayable solutions are usually no longer diluted with other inert substances before use
  • a dusting agent is obtained by mixing 10 parts by weight of an active ingredient combination according to the invention and 90 parts by weight of talc as an inert substance and comminuting them in a hammer mill
  • a wettable powder which is readily dispersible in water is obtained by adding 25 parts by weight of active compounds (A) + (B), 64 parts by weight of kaolin-containing quartz as an inert substance, 10 parts by weight of lignosulfonic acid potassium and 1 part by weight of oleoylmethyltaunic acid sodium mixes as a wetting and dispersing agent and grinds in a pin mill
  • a dispersion concentrate which is readily dispersible in water is obtained by mixing 20 parts by weight of active compounds (A) + (B) with 6 parts by weight of alkylphenol polyglycol ether ( ⁇ Triton X 207), 3 parts by weight of isotecdecanol polyglycol ether (8 EO) and 71 parts by weight Parts of paraffinic mineral oil (boiling range e.g. approx. 255 to 277 ° C) and ground in a friction ball mill to a fineness of less than 5 microns
  • An emulsifiable concentrate is obtained from 15 parts by weight of cyclohexanone as solvent and 10 parts by weight of oxyethylated nonylphenol as emulsifier
  • a water-dispersible granulate is obtained by adding 75 parts by weight of active ingredients (A) + (B), 0 parts by weight of calcium lignosulfonic acid,
  • X % damage by herbicide A at an application rate of x kg / ha
  • Y % damage by herbicide B at an application rate of y kg / ha
  • E damage to be expected from herbicides A + B at x + y kg / ha
  • the effect of the combination is more than additive, i.e. there is a synergistic effect
  • Seeds or rhizome pieces of monocotyledonous and dicotyledonous weeds are placed in pots with sandy loam soil, covered with soil and grown in the greenhouse under good growth conditions.
  • the weeds are grown in pots with water-saturated soil or in pots with soil, in whose water is up to 2 cm above the surface of the soil and cultivated during the test phase
  • the test plants are treated in the two- or three-leaf stage, with any existing accumulation water being drained off beforehand, if necessary.
  • compositions according to the invention have good herbicidal activity against a broad spectrum of economically important grass weeds and weeds
  • Echinochloa colona seeds from fields for the cultivation of transplanted rice were grown in plastic soil with sandy soil (see Section 2 1).
  • Propanil and anilofos, each formulated as emulsifiable concentrates, were mixed in a tank mix and applied with a water application rate of 300 l / ha Harmful plants spread in the 2- or 3-leaf stage After two weeks of standing of the test plants in the greenhouse under optimal growth conditions, the effect of the preparations was rated in comparison to untreated controls in accordance with Section 1. The results of the ratings are summarized in Table 1
  • stage of application stage of application of Echinochloa colona
  • Echinochloa colona seeds from fields for the cultivation of transplanted rice were grown on field plots in sandy soil.
  • Propanil and anilofos, each formulated as emulsifiable concentrates were mixed in a tank mix and applied to the harmful plants at the two-leaf stage with a water application rate of 300 l / ha. After two The test plants were rated for weeks after the test plants had been compared to untreated controls in accordance with Section 1. The results of the ratings are summarized in Table 2.
  • ISCRU Ischaemum rugosum (Grammaceae)

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  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Des combinaisons de propanyle et d'anilofos ont un effet synergique et sont utiles comme herbicides pour combattre les plantes nuisibles dans des cultures de plantes utiles telles que le riz.
PCT/EP1997/003474 1996-07-11 1997-07-02 Herbicides synergiques WO1998002043A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU33457/97A AU3345797A (en) 1996-07-11 1997-07-02 Synergistic herbicides

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1996127900 DE19627900A1 (de) 1996-07-11 1996-07-11 Synergistische herbizide Mittel
DE19627900.3 1996-07-11

Publications (1)

Publication Number Publication Date
WO1998002043A1 true WO1998002043A1 (fr) 1998-01-22

Family

ID=7799511

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/003474 WO1998002043A1 (fr) 1996-07-11 1997-07-02 Herbicides synergiques

Country Status (8)

Country Link
AR (1) AR007736A1 (fr)
AU (1) AU3345797A (fr)
BR (1) BR9703950A (fr)
CO (1) CO4750595A1 (fr)
DE (1) DE19627900A1 (fr)
PA (1) PA8433801A1 (fr)
PE (1) PE90298A1 (fr)
WO (1) WO1998002043A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996013977A2 (fr) * 1994-11-04 1996-05-17 E.I. Du Pont De Nemours And Company Melanges herbicides

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996013977A2 (fr) * 1994-11-04 1996-05-17 E.I. Du Pont De Nemours And Company Melanges herbicides

Also Published As

Publication number Publication date
AU3345797A (en) 1998-02-09
CO4750595A1 (es) 1999-03-31
BR9703950A (pt) 1998-11-03
PE90298A1 (es) 1998-12-07
DE19627900A1 (de) 1998-01-15
PA8433801A1 (es) 2000-05-24
AR007736A1 (es) 1999-11-10

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