WO2018040764A1 - Composition herbicide à effet synergique - Google Patents

Composition herbicide à effet synergique Download PDF

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Publication number
WO2018040764A1
WO2018040764A1 PCT/CN2017/093189 CN2017093189W WO2018040764A1 WO 2018040764 A1 WO2018040764 A1 WO 2018040764A1 CN 2017093189 W CN2017093189 W CN 2017093189W WO 2018040764 A1 WO2018040764 A1 WO 2018040764A1
Authority
WO
WIPO (PCT)
Prior art keywords
isoxaflutole
active ingredient
herbicidal composition
composition
composition according
Prior art date
Application number
PCT/CN2017/093189
Other languages
English (en)
Chinese (zh)
Inventor
仲汉根
季自华
季红进
Original Assignee
江苏辉丰农化股份有限公司
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 江苏辉丰农化股份有限公司 filed Critical 江苏辉丰农化股份有限公司
Publication of WO2018040764A1 publication Critical patent/WO2018040764A1/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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
    • A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
    • 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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2

Definitions

  • the invention belongs to the field of agricultural plant protection, and in particular relates to a herbicidal composition with improved properties.
  • the active component isoxaflutole is an organic heterocyclic selective systemic pre-emergence herbicide used for soil treatment in dry crop fields such as corn and sugar cane, mainly through the weed roots. And it works. After the sensitive weeds absorb the drug, the formation of chlorophyll is destroyed by inhibiting p-hydroxyphenylacetone dioxygenase, resulting in chlorotic wilting of the affected weeds.
  • the active ingredient retained in the surface soil due to poor soil moisture during or after application of isoxaflutole can not be used to prevent weeds in time, it can still be decomposed for a long time. By rain or irrigation, we can still play a role in weed control, and even kill and inhibit sensitive weeds that grow to 4 to 5 leaves. It is mainly used for annual broadleaf weeds, and also has some good control effects on some annual grass weeds such as crabgrass, yarrow grass, goosegrass, thousand gold, big foxtail and foxtail.
  • the active ingredient diflufenican is a carotenoid biosynthesis inhibitor. Causes chlorophyll destruction and cell rupture, and plant death. It is a broad-spectrum selective wheat field herbicide. The residual period in the soil is longer. It is suitable for controlling pig mites, coiled stalks, purslane, sylvestris, sorghum, nesting vegetables, snails, stalks, sorrel, stalks, thorns, stalks, sedges, toads It contains various broad-leaved weeds such as blue cabbage, wild peas, sage, and small convolvulus, as well as some grass weeds.
  • the purpose of the invention is to screen the herbicide containing two different weeding principles for the resistance of the herbicide in practical application and the problem of soil residue, so as to improve the control effect of the herbicide, delay the generation of the resistance, and reduce the application amount. Reduce the cost of prevention.
  • Another object of the present invention is to provide an application of the above composition for controlling weeds in the agricultural field.
  • the object of the invention can be achieved by the following measures:
  • the present invention provides a synergistic herbicidal composition
  • a synergistic herbicidal composition comprising the active ingredients A and B, the active ingredient A is isoxaflutole, and the active ingredient B is diflufenic acid.
  • the active ingredient of the composition of the present invention may contain only A and B, and may further contain other active ingredients without affecting the overall performance of the composition.
  • the weight ratio of the active ingredient isoxaflutole to diflufenic acid of the herbicidal composition of the invention is from 1:0.03 to 30.
  • the weight ratio of the active ingredient of the herbicidal composition of the present invention to isoxaflutole and diflufenic acid is 1:0.05-20.
  • the weight ratio of the active ingredient isoxaflutole to diflufenic acid of the herbicidal composition of the invention is from 1:0.1 to 10.
  • the weight ratio between the two components of A and B can be arbitrarily adjusted within the range of the following ratios: 1: 0.03, 1: 0.04, 1: 0.05, 1: 0.06, 1: 0.07, 1:0.08, 1:0.09, 1:0.1, 1:0.2, 1:0.3, 1:0.4, 1:0.5, 1:0.6, 1:0.7, 1:0.8, 1:0.9, 1:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10, 1:11, 1:12, 1:13, 1: 14, 1:15, 1:16, 1:17, 1:18, 1:19, 1:20, 1:21, 1:22, 1:23, 1:24, 1:25, 1:26, 1:27, 1:28, 1:29, 1:30, it is also possible to select within the range of any two of the above ratios, which can be understood as a weight ratio or a molar ratio.
  • composition of the present invention can be formulated into a pesticide-acceptable dosage form together with an active ingredient and an agrochemical adjuvant.
  • the mass of the active ingredient in the composition of the present invention may be from 2 to 95%, preferably from 5 to 80%.
  • a carrier, an adjuvant and/or a surfactant may be included in the composition of the present invention.
  • Common auxiliaries can be mixed during the application.
  • Suitable auxiliaries may be solid or liquid, they are usually materials commonly used in the processing of dosage forms, such as natural or regenerated minerals, solvents, dispersants, wetting agents, adhesives, thickeners, binders or fertilizers. .
  • the method of application of the compositions of the invention comprises the use of the compositions of the invention for aerial parts of plants, in particular leaves or foliage.
  • the frequency of administration and the amount administered will depend on the biological and climatic conditions of the pathogen.
  • the plant growth site such as rice fields, may be wetted with a liquid formulation of the composition, or the composition may be applied to the soil in solid form, such as In the form of granules (soil application), the composition can be introduced from the soil into the plant through the roots of the plant (systemic action).
  • compositions may be applied only by the active ingredient (also referred to as the active ingredient), or may be used in combination with an additive or an auxiliary agent, so that the composition of the present invention can be prepared into various dosage forms such as a wettable powder, a suspending agent, or the like.
  • Dispersing oil suspending agents, water emulsions, emulsifiable concentrates, water-dispersible granules, and the like may be applied by spraying, misting, dusting, spreading or pouring, and the like.
  • composition of the present invention can be prepared into various dosage forms by a known method, for example, the active ingredient and an auxiliary agent such as a solvent, a solid carrier, and if necessary, can be uniformly mixed with a surfactant and ground to prepare a desired form.
  • an auxiliary agent such as a solvent, a solid carrier, and if necessary, can be uniformly mixed with a surfactant and ground to prepare a desired form.
  • the above solvent may be selected from aromatic hydrocarbons, preferably containing from 8 to 12 carbon atoms, such as a mixture of xylenes or substituted benzenes, phthalates such as dibutyl phthalate or dicaprylic acid, aliphatic hydrocarbons such as rings.
  • aromatic hydrocarbons preferably containing from 8 to 12 carbon atoms, such as a mixture of xylenes or substituted benzenes, phthalates such as dibutyl phthalate or dicaprylic acid, aliphatic hydrocarbons such as rings.
  • Alkenes or paraffins, alcohols and glycols and their ethers and esters such as ethanol, ethylene glycol, ethylene glycol monomethyl
  • ketones such as cyclohexanone
  • highly polar solvents such as N-methyl-2 Pyrrolidone, dimethyl sulfoxide or dimethylformamide
  • vegetable or vegetable oils such as soybean oil.
  • the above solid carriers are typically natural mineral fillers such as talc, kaolin, montmorillonite or activated clay.
  • a highly dispersible silicic acid or a highly dispersible adsorbent polymer carrier such as a particulate adsorbent carrier or a non-adsorbing carrier, and a suitable particulate adsorbent carrier is porous, such as pumice, bentonite or Bentonite; a suitable non-adsorbing carrier such as calcite or sand.
  • a large amount of pre-granulated materials of inorganic or organic nature can be used as a carrier, in particular dolomite.
  • Suitable surfactants are lignosulfonic acid, naphthalenesulfonic acid, phenolsulfonic acid, alkaline earth metal or amine salts, alkylarylsulfonates, alkyl groups Sulfates, alkyl sulfonates, fatty alcohol sulphates, fatty acids and sulfated fatty alcohol glycol ethers, as well as condensates of sulfonated naphthalene and naphthalene derivatives with formaldehyde, naphthalene or naphthalene sulfonic acid with phenol and formaldehyde Condensate, polyoxyethylene octyl phenyl ether, ethoxylated isooctyl phenol, octyl phenol, nonyl phenol, alkyl aryl polyglycol ether, tributyl benzene poly
  • the two active ingredients in the compositions of the present invention exhibit synergistic effects, the activity of which is more pronounced than the expected sum of activity using a single compound, and the individual activity of a single compound.
  • the synergistic effect is manifested by allowing for a reduced application rate, a broader herbicidal control profile, quicker effect, longer lasting control effect, better control of weeds by only one or a few applications, and widening of possible application intervals . These characteristics are particularly needed to control weed control practices.
  • the herbicidal composition of the invention can be applied to the control of crop weeds in the agricultural field, in particular Persian Po Na, Ma Tang, Xiang Fuzi and wild donkey.
  • the other characteristics exhibited by the herbicidal composition of the present invention are mainly as follows: 1. Since the chemical composition of the two single agents of the present composition is very different, the mechanism of action is completely different, and there is no cross-resistance, and two single agents can be delayed. The resulting resistance problem is used alone; 2. The composition of the present invention is safe and effective against crops. It has been proved by experiments that the herbicide composition of the invention has stable chemical properties, remarkable synergistic effect, and exhibits obvious synergistic effect and complementary effect on the control object.
  • the active ingredient isoxaflutole is mixed with the active ingredient flufenic acid with various auxiliaries and fillers in proportion, and pulverized by an ultrafine pulverizer to obtain a wettable powder.
  • Example 1 21% isoxaflutole piracetamide wettable powder
  • Example 2 42% isoxaflutole piracetamide wettable powder
  • Example 3 84% isoxaflutole piracetamide wettable powder
  • Example 4 11% isoxaflutole and flufenacetate water-dispersible granules
  • Example 5 20% isoxaflutole and flufenacetate water-dispersible granules
  • Example 6 31% isoxaflutole and flufenacetate water-dispersible granules
  • the active ingredient isoxazolone and flufenic acid, emulsifier, organic solvent and other components are mixed in a uniform ratio to obtain a finished product.
  • Example 7 31% isoxaflutole piracetamide EC
  • Example 8 11% isoxaflutole piracetamide emulsifiable concentrate
  • Example 9 24% isoxaflutole piracetamide emulsifiable concentrate
  • Isooxazolone was used as a standard drug to calculate the disease index and control effect.
  • the control effect is converted into the probability value (y)
  • the concentration of the drug solution ( ⁇ g/ml) is converted into the logarithm value (x)
  • the virulence equation is calculated by the least squares method and the concentration EC50 is suppressed
  • the virulence index of the drug is calculated according to the method of Sun Yunpei. Grade Co-toxicity coefficient (CTC).
  • CTC Grade Co-toxicity coefficient
  • Measured virulence index (ATI) (standard drug EC50 / test drug EC50) * 100
  • Theoretical virulence index (TTI) A virulence index * Percentage of A in the mixture + B virulence index * Percentage of B in the mixture
  • CTC Co-toxicity coefficient [mixture measured virulence index (ATI) / mixed theory virulence index (TTI)] * 100
  • CTC ⁇ 80 the composition showed antagonism, 80 ⁇ CTC ⁇ 120, the composition showed an additive effect, CTC ⁇ 120, and the composition showed synergistic effect.

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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)

Abstract

L'invention concerne une composition herbicide à effet synergique. Cette composition comprend des composants efficaces d'isoxaflutole et de diflufénican, un rapport de poids entre l'isoxaflutole et le diflufénicane étant de 1/0,03 à 30. Des tests pharmacodynamiques montrent que cette composition possède des caractéristiques positives, telles qu'une complémentarité élevée, un effet synergique évident, un spectre plus large de désherbage, des doses d'application réduites, une période d'application prolongée, une sécurité de récolte élevée, une pollution environnementale réduite, qui sont compatibles avec l'environnement.
PCT/CN2017/093189 2016-08-31 2017-07-17 Composition herbicide à effet synergique WO2018040764A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610799230.8 2016-08-31
CN201610799230.8A CN106386817B (zh) 2016-08-31 2016-08-31 具有增效作用的除草组合物

Publications (1)

Publication Number Publication Date
WO2018040764A1 true WO2018040764A1 (fr) 2018-03-08

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PCT/CN2017/093189 WO2018040764A1 (fr) 2016-08-31 2017-07-17 Composition herbicide à effet synergique

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WO (1) WO2018040764A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106386817B (zh) * 2016-08-31 2019-04-16 江苏辉丰农化股份有限公司 具有增效作用的除草组合物
CN108338179A (zh) * 2017-08-07 2018-07-31 江苏辉丰农化股份有限公司 含有氟唑磺隆和噁唑酰草胺的除草组合物
CN108338174A (zh) * 2017-08-09 2018-07-31 江苏辉丰农化股份有限公司 含有噁唑酰草胺和氟噻草胺的除草组合物

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1237338A (zh) * 1998-03-09 1999-12-08 罗纳·普朗克农业公司 新颖的除草剂组合物
WO2000078147A1 (fr) * 1999-06-17 2000-12-28 Aventis Cropscience S.A. Nouvelles compositions herbicides
CN101080173A (zh) * 2004-12-17 2007-11-28 辛根塔参与股份公司 除草组合物
WO2016150751A1 (fr) * 2015-03-20 2016-09-29 Bayer Cropscience Aktiengesellschaft Compositions herbicides comprenant de l'isoxaflutole et du diflufénican
CN106386817A (zh) * 2016-08-31 2017-02-15 江苏辉丰农化股份有限公司 具有增效作用的除草组合物

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1237338A (zh) * 1998-03-09 1999-12-08 罗纳·普朗克农业公司 新颖的除草剂组合物
WO2000078147A1 (fr) * 1999-06-17 2000-12-28 Aventis Cropscience S.A. Nouvelles compositions herbicides
CN101080173A (zh) * 2004-12-17 2007-11-28 辛根塔参与股份公司 除草组合物
WO2016150751A1 (fr) * 2015-03-20 2016-09-29 Bayer Cropscience Aktiengesellschaft Compositions herbicides comprenant de l'isoxaflutole et du diflufénican
CN106386817A (zh) * 2016-08-31 2017-02-15 江苏辉丰农化股份有限公司 具有增效作用的除草组合物

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SONG, QIAN ET AL.: "Target Sites for Herbicides and Their Modes of Action", AGROCHEMICALS, pages 703 - 705, ISSN: 1006-0413 *

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CN106386817B (zh) 2019-04-16
CN106386817A (zh) 2017-02-15

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