WO1994022301A1 - Agent de diffusion pour pesticides - Google Patents

Agent de diffusion pour pesticides Download PDF

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Publication number
WO1994022301A1
WO1994022301A1 PCT/JP1994/000486 JP9400486W WO9422301A1 WO 1994022301 A1 WO1994022301 A1 WO 1994022301A1 JP 9400486 W JP9400486 W JP 9400486W WO 9422301 A1 WO9422301 A1 WO 9422301A1
Authority
WO
WIPO (PCT)
Prior art keywords
spreading agent
fatty acid
pesticide
pesticides
spreading
Prior art date
Application number
PCT/JP1994/000486
Other languages
English (en)
Japanese (ja)
Inventor
Shiro Sato
Kohhei Sakuma
Akihiro Udagawa
Original Assignee
Lion Corporation
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 Lion Corporation filed Critical Lion Corporation
Publication of WO1994022301A1 publication Critical patent/WO1994022301A1/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
    • A01N25/00—Biocides, 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
    • A01N25/24—Biocides, 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 containing ingredients to enhance the sticking of the active ingredients
    • 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
    • A01N25/00—Biocides, 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
    • A01N25/30—Biocides, 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 characterised by the surfactants

Definitions

  • the present invention relates to a pesticide spreading agent that is used as a kind of pesticide auxiliary and imparts wettability to pesticides.
  • Pesticides such as insecticides, fungicides, plant growth hormones, herbicides, and the like can only exert their effects when absorbed by animals such as plants or pests.
  • the plant surface secreted wax lipoids, feather-like fibers were densely grown, or the surface often had fine irregularities, the aqueous liquid containing pesticides was used for the plant. When sprayed on the surface, there is a problem that the pesticide adheres to the plant surface and is poorly absorbed into the plant, and the pesticide effect is not sufficiently exerted.
  • the surface of the pest has a hydrophobic layer similar to keratinous material, so that when an aqueous liquid containing a pesticide is sprayed on the pest surface, the pesticide adheres to the pest surface and is absorbed inside the pest. There is a problem that the pesticide effect is not sufficiently exhibited.
  • Spreading agents are used to improve the wet spreadability (easiness of spreading and spreading) of pesticides, and consist of a surfactant.
  • the spreading agent lowers the surface tension and improves the permeability of the aqueous solution containing the pesticide by the action of the surfactant, thereby increasing the wet spreadability of the pesticide.
  • it shows the effect of improving, it also shows physicochemical effects such as emulsification, separation, and suspension of pesticides in aqueous liquid.
  • the spreading agent for agrochemicals besides being excellent in wet spreadability, has low foaming properties, does not cause phytotoxicity, and has excellent safety. It is required to be excellent in biodegradability and have properties such as not polluting the environment. However, a material that satisfies these characteristics simultaneously has not been developed yet.
  • non-ionic surfactants such as polyoxyethylene sorbitan ester, polyoxyethylene alkyl (or aryl) ether, and polyoxyethylene fatty acid ester have been used as pesticide spreading agents;
  • Anionic surfactants such as sulfosuccinate, ligninsulfonate, and polynaphthylsulfonate; and other polyacrylates are known.
  • these conventional spreading agents do not simultaneously possess both spreading and biodegradable properties.
  • polyoxyethylene nourphenyl ether which contains many of the spreading agents as its main components, has poor biodegradability, and has problems with environmental safety such as fish toxicity and plant phytotoxicity, and foaming power. Therefore, there is a problem in workability when spraying pesticides.
  • the present applicant has previously proposed a spreading agent for agricultural chemicals comprising a lower alkyl ester salt of ⁇ -sulfofatty acid as a main component (Japanese Unexamined Patent Application Publication Nos. 2-167207 and 4-191). No. 3802). Although this spreading agent has good biodegradability and does not cause much phytotoxicity to crops, it has chemical reactivity, and depending on the pesticide, it may cause solid matter when mixed with the pesticide. To be deposited, There was a problem that the spreading performance was reduced.
  • the present invention reduces the surface tension of a pesticide-containing aqueous liquid, improves its permeability, and is excellent in safety, biodegradability, and low foaming property. It is an object of the present invention to provide an agricultural chemical spreader that does not cause precipitation of water.
  • an agricultural chemical extension comprising at least one ester-type nonionic surfactant selected from fatty acid polyoxyalkylene alkyl ethers represented by the following general formulas (I) and (II):
  • An adhesive is provided.
  • RiCOO represents a fatty acid residue having 14 to 18 carbon atoms
  • R 2 represents an alkyl group having 1 to 3 carbon atoms
  • m is an average number of added moles of (C 2 H 40 ), 1 Indicate the number of ⁇ 20
  • RiCOO represents a fatty acid residue having 14 to 18 carbon atoms
  • R 2 represents an alkyl group having 1 to 3 carbon atoms
  • m is an average number of added moles of (C 2 H 40 ), 1 the number of to 20,
  • n is an average addition mole number of (C 3 H 6 0), the number of 1-3, random and (C 2 H 4 0) and (C 3 H 6 0) Or block-wise)
  • the number of carbon atoms in the fatty acid residue RiCOO is less than 14 or more than 18, the effect of lowering the surface tension of the pesticide-containing aqueous liquid and the effect of improving the permeability by the spreading agent will be insufficient, and the spreading Pesticide-containing aqueous solution The liquid becomes very foamy.
  • RiCOO has 14 to 18 carbon atoms, the spreader has very little phytotoxic effect, but when the carbon number is less than 13, especially 11 or less, the spreadable phytotoxicity of the spreader becomes large.
  • the fatty acid residue RiCOO is derived from various conventionally known fatty acids.
  • the fatty acid can be saturated or unsaturated, and can be linear or branched. Further, the fatty acid may have a substituent such as a hydroxyl group.
  • fatty acids that provide R ⁇ COO include myristic acid, 5-methyltetradecanoic acid, 2,2-dimethyltradecanoic acid, pentadecanoic acid, palmitic acid, somalic acid (9-hexadecenoic acid), margaric acid, stearin Acids, oleic acid, paccenic acid (11-otatadecenoic acid), linoleic acid, linolenic acid, ricinoleic acid, 9,10-dihydroxyoctadecanoic acid, elaidic acid, isostearic acid, etc. .
  • the number of carbon atoms of the lower alkyl group R 2 is one to three, preferably 1-2.
  • the carbon number of the lower alkyl group R 2 exceeds 3, the fish toxicity of the spreading agent becomes poor, and when it is 5 or more, the permeability of the spreading agent decreases.
  • R 2 is hydrogen, the permeability of the spreading agent is extremely poor, and the performance as the spreading agent is reduced.
  • the average number of moles of addition (m) of (C 2 H 40 ) is from 1 to 20, preferably from 2 to 10. If the average number of added moles m is smaller than this value, the permeability of the spreading agent is significantly reduced, while if it is large, the permeability of the spreading agent is reduced and the foaming property is too high. .
  • the average number of added moles n of (C 3 H 60 ) is 1 to 3, preferably 2 to 3.c
  • the permeability of the spreading agent decreases and the Degradability also worsens.
  • (C 2 H 40 ) and (C 3 H 60 ) may be bonded randomly or in blocks.
  • the connection order of the (C 2 H 40 ) block and the (C 3 H 60 ) block is arbitrary.
  • the fatty acid polyoxyalkylene alkyl ether represented by the general formula (I) is obtained by adding ethylene oxide to a fatty acid and then reacting it with an alkyl halide, or adding ethylene oxide to a lower alcohol. After the reaction, it can be produced by reacting a fatty acid or a lower alkyl ester thereof.
  • the fatty acid polyoxyalkylene alkyl ether represented by the general formula (II) is capable of reacting a fatty acid with a random or block addition reaction of ethylenoxide and propylene oxide and then reacting an alkyl halide. It can be obtained by reacting a lower alcohol with ethylene oxide and propylene oxide in a random or block manner and then reacting a fatty acid or a lower alkyl ester thereof.
  • the spreading agent of the present invention is usually used by adding to and mixing with an aqueous pesticide-containing solution at the time of spraying the pesticide.
  • Pesticide-containing aqueous liquids are aqueous solutions of pesticides, It can be an aqueous dispersion of a pesticide, an aqueous emulsion of a pesticide, or the like.
  • the pesticides include various conventionally known substances such as insecticides, fungicides, plant growth hormones, and herbicides.
  • the pesticide spread agent of the present invention When the pesticide spread agent of the present invention is added to the pesticide-containing aqueous liquid, the fatty acid polyoxyalkylene alkyl ether as the pesticide spreader is added as it is or in the form of a solution. When added in the form of a solution, the concentration of the fatty acid polyoxyalkylene alkyl ether in the solution is 5 to 95% by weight, preferably 10 to 80% by weight.
  • the spreading agent solution can be an aqueous solution, a water-soluble organic solvent solution, an aqueous solution containing a water-soluble organic solvent, or the like.
  • the amount of the spreading agent added to the pesticide-containing aqueous liquid varies depending on the type of pesticide, but generally, the concentration of the fatty acid polyoxyalkylene alkyl ether contained in the pesticide-containing aqueous liquid is from 30 to 500,000. It is in the range of ppm, and is appropriately selected according to the plant or pest to be sprayed.
  • the pesticide spreader of the present invention when added to the pesticide-containing aqueous liquid, significantly lowers its surface tension and enhances its permeability. Therefore, when the pesticide-containing aqueous liquid to which the spreading agent of the present invention is added is sprayed on plants and pests, adhesion of the pesticides on the surfaces of the plants and pests and penetration or absorption of the pesticides into the plants and pests are suppressed. Promoted and high pesticide effect. Moreover, since the pesticide spreader of the present invention has a low foaming property, when added to and mixed with the pesticide-containing aqueous liquid, the generation of foam is extremely small, and the dispersibility of the pesticide-containing aqueous liquid is deteriorated. Not even.
  • the pesticide spreader of the present invention has extremely high safety and excellent biodegradability, and thus does not cause environmental pollution.
  • the present invention Since the chemical spreader has virtually no chemical reactivity, when added to an aqueous solution containing pesticides, it reacts with the pesticides to inactivate the pesticides, depositing solids Does not occur.
  • CBVP-A3 type manufactured by Kyowa Kagaku Co., Ltd. as a surface tension measuring device, the surface tension is measured with a test solution prepared by diluting the spreader sample to a concentration of 30 ppm with 3 degree hard water at 25 ° C. did.
  • Activated sludge of 3 O ppm as solids is added as a seeding source to a test aqueous solution with a spreading agent sample concentration of 100 ppm, and the BOD (biochemical oxygen consumption) is added.
  • BOD biochemical oxygen consumption
  • TOD Total Oxygen Consumption
  • the degree of biodegradation BODZTOD (%) is evaluated according to the following criteria.
  • Time to reach biodegradability of 60% is 29 days or more, or does not reach 60% even if biodegradation is 29 days or more
  • a solution obtained by adding the spreading agent of the present invention to an aqueous solution of a contact-type herbicide (trade name: Preglox, manufactured by Nippon Agrochemical Co., Ltd.) was used. Herbicidal tests were conducted on three representative weeds. For comparison, a herbicidal test using a drug solution to which the spreading agent of the present invention was not added was performed. The specific contents of this test method are shown below, and the test results are shown in Table 4.
  • Herbicidal effect Observed on the 5th and 14th days after the treatment, the amount of residual herbage (the amount of fresh grass) was compared with that of the untreated plot and evaluated on the following five scales. The values in the untreated column indicate the plant height at the time of preparation.
  • the crabgrass, moss, and shiroza used in this test are all resistant to chemicals.
  • the addition rate of the spreading agent of the present invention to the contact herbicide (Preglox L) clearly improved the adhesion rate of the drug solution to the leaves.
  • the medicinal solution to which the spreading agent of the present invention was added showed a stable herbicidal effect.
  • the following spreading agents are added to a selective herbicide (trade name: One Side Emulsion, manufactured by Ishihara Sangyo Co., Ltd.) to make a chemical solution, and this chemical solution is applied to three typical crops. The phytotoxicity of the spreading agent was evaluated.
  • a selective herbicide trade name: One Side Emulsion, manufactured by Ishihara Sangyo Co., Ltd.
  • Test method 1 Test location: Greenhouse (25 ° C / 15 ° C: daytime and nighttime)
  • Test crops Cabbage (Name: Shogun Kanai, Properties: Flat leaves, but with a lot of wax), Tomato (Name: Momotaro, Properties: Little of wax, but many mochi), Eggplant (Name: 1,000) No. 2, Properties: The amount of wax is not so large and there are few protrusions on the leaf surface)
  • Spray method foliage spraying, spray liquid volume 100 ml / m 2 atm pressure, TEE JET nozzle, 30 cm spray on leaf.
  • Micro Growth is temporarily stagnant due to chemical damage, but recovery is fast and there is no practical problem.
  • the spreading agent of the present invention did not show any problematic toxic symptoms even though it showed a sufficient effect of applying a chemical solution.

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  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Agronomy & Crop Science (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Biological Depolymerization Polymers (AREA)

Abstract

Un nouvel agent de diffusion, applicable à des solutions aqueuses contenant des pesticides tels que des insecticides, des bactéricides, des hormones de croissance végétale et des herbicides, présente une sécurité et un effet de diffusion excellents sans réagir avec les pesticides. Cet agent de diffusion comprend au moins comme agent tensio-actif un ester non ionique sélectionné parmi des esters d'acides gras ou d'éthers d'alkyle polyoxyalkylène représentés par les formules générales (I) R1COO(C2H4O)mR2 et (II) R1COO(C2H4O)m(C3H6O)nR2 où R1COO représente un résidu d'acide gras C14-C18; R2 représente C1-C3alkyle; m représente un nombre molaire moyen d'addition d'unités (C2H4O) et varie de 1 à 20; n représente un nombre molaire moyen d'addition d'unités de (C3H6O) et varie de 1 à 3; et les unités (C2H4O) et (C3H6O) sont liées ensemble de façon aléatoire ou en bloc.
PCT/JP1994/000486 1993-03-26 1994-03-25 Agent de diffusion pour pesticides WO1994022301A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP9241593 1993-03-26
JP5/92415 1993-03-26
JP6060161A JP2959949B2 (ja) 1993-03-26 1994-03-04 農薬用展着剤
JP6/60161 1994-03-04

Publications (1)

Publication Number Publication Date
WO1994022301A1 true WO1994022301A1 (fr) 1994-10-13

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ID=26401234

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1994/000486 WO1994022301A1 (fr) 1993-03-26 1994-03-25 Agent de diffusion pour pesticides

Country Status (2)

Country Link
JP (1) JP2959949B2 (fr)
WO (1) WO1994022301A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999060851A1 (fr) * 1998-05-26 1999-12-02 Cognis Deutschland Gmbh Agent aqueux contenant des principes actifs agrochimiques
WO2003003830A1 (fr) * 2001-07-04 2003-01-16 Cognis Deutschland Gmbh & Co. Kg Procede permettant d'ameliorer la resistance a la pluie de produits phytosanitaires
CN102036556A (zh) * 2008-05-23 2011-04-27 狮王株式会社 农药用表面活性剂组合物

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030017549A (ko) * 2000-06-19 2003-03-03 바이엘 크롭사이언스 게엠베하 제초제
JP5250282B2 (ja) * 2008-03-17 2013-07-31 ライオン株式会社 衛生害虫駆除剤組成物
JP5826554B2 (ja) 2010-09-03 2015-12-02 花王株式会社 農薬用展着剤組成物

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4821494B1 (fr) * 1970-12-28 1973-06-29
JPS4911072B1 (fr) * 1970-11-11 1974-03-14

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4911072B1 (fr) * 1970-11-11 1974-03-14
JPS4821494B1 (fr) * 1970-12-28 1973-06-29

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999060851A1 (fr) * 1998-05-26 1999-12-02 Cognis Deutschland Gmbh Agent aqueux contenant des principes actifs agrochimiques
US6403529B1 (en) 1998-05-26 2002-06-11 Cognis Deutschland Gmbh & Co. Kg Aqueous, agrochemical agents containing active ingredients
WO2003003830A1 (fr) * 2001-07-04 2003-01-16 Cognis Deutschland Gmbh & Co. Kg Procede permettant d'ameliorer la resistance a la pluie de produits phytosanitaires
CN102036556A (zh) * 2008-05-23 2011-04-27 狮王株式会社 农药用表面活性剂组合物
EP2298072A4 (fr) * 2008-05-23 2012-04-04 Lion Corp Composition de tensioactifs pour des applications agricoles
US8969604B2 (en) 2008-05-23 2015-03-03 Lion Corporation Surfactant composition for agricultural chemicals

Also Published As

Publication number Publication date
JP2959949B2 (ja) 1999-10-06
JPH06329503A (ja) 1994-11-29

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