JP2007308481A - Method for spraying agrochemical over plant body or soil - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a big problem such that the drift of agrochemicals includes a possibility of harming surrounding residents, and causing residual risk for neighboring crops, the contamination of the agrochemicals into public water area, and an agrochemical exposure to a spraying person, etc. <P>SOLUTION: This method for improving the spraying effect by using a drift-reducing nozzle is provided by spraying the liquid of spraying as a form of containing the agrochemicals, a nonionic surfactant and water in spraying the agrochemicals by using the drift-reducing nozzle over plant bodies such as the stems, branch leaves, fruits, the trunks and branch leaves of trees, soil where the plants are planted or the soil where the plants are scheduled to be planted. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention sprays agricultural chemicals using a drift reduction nozzle on a plant body such as a plant stem, branches and leaves, fruits, tree trunks, branches and leaves, or a soil in which a plant body is planted or a soil to be planted. The present invention relates to a method for enhancing the spraying effect of the drift reduction nozzle by spraying in the form of spraying liquid containing agricultural chemicals, nonionic surfactant and water.

Pesticides such as fungicides, insecticides, herbicides, plant growth regulators, repellents, or fertilizers are indispensable materials for stable and economical cultivation of crops. There are various application methods for pesticides, but the most frequently used method is spraying a chemical solution containing pesticides in water. Scattering is a technique of spraying sprayed particles sprayed from a sprayer onto plants or soil, but often the sprayed particles drift (drifting) under the influence of wind or the like before reaching the target location. The drift of pesticides is a serious problem because of the possibility of harm to nearby residents, residual risk to nearby crops, contamination of pesticides in public waters, and exposure of pesticides to sprayers.
As a method for spraying agricultural chemicals to reduce drift, for example, a method of adding a superabsorbent gel is described in JP-A-58-177903. Further, as an effective measure for reducing the drift, it is recommended to spray using a drift reduction nozzle. Drift reduction nozzle refers to a nozzle with a larger spray particle diameter and less drift, and the average particle diameter of general practice nozzles is less than 100 μm, but corresponds to nozzles of 120 μm or more (exact definition) Is not determined). When a drift reduction nozzle is used, it has the ability to suppress drift to a fraction of a fraction to a fraction of that of a conventional nozzle. However, when the dispersed particles are large, adhesion unevenness generally tends to occur, and the medicinal effects of the agricultural chemicals may be lowered at a site where the spray liquid is difficult to adhere or does not adhere. In particular, since there is a possibility that the decrease in the medicinal efficacy of agricultural chemicals will be greater if the spraying amount is small, there is a strong demand for a technique that stabilizes the medicinal effect even if a drift reduction nozzle is used.

JP 58-177903 A

  If a drift reduction nozzle is used to eject large spray particles, uneven adhesion tends to occur. As a result, the efficacy of agricultural chemicals may be reduced. In particular, since there is a possibility that the decrease in medicinal effect will be greater if the spraying amount is small, a technique that stabilizes the medicinal effect even if a drift reduction nozzle is used has been strongly desired.

  As a result of studying to solve the above-mentioned problems, the present inventors have significantly reduced the surface tension of a chemical solution of an agrochemical by using a nonionic surfactant, thereby improving the spreadability of the chemical solution of the agrochemical. As a result, it was found that even when large spray particles are sprayed, uneven adhesion hardly occurs and the medicinal effect is stabilized, and the present invention has been completed.

That is, the present invention has the following gist.
(1) A method of spraying agricultural chemicals on a plant or soil, and spraying a spray liquid containing agricultural chemicals, a nonionic surfactant and water using a sprayer equipped with a drift reduction nozzle.
(2) The method according to (1) above, wherein the pesticide is at least one selected from the group consisting of fungicides, insecticides, herbicides, plant growth regulators, repellents, and fertilizers.
(3) The method according to (1) above, wherein the pesticide is at least one pesticide selected from the group consisting of fungicides, insecticides, herbicides, plant growth regulators and repellents.
(4) The method according to (1) above, wherein the soil is soil in which plants are planted or soil in which plants are to be planted.
(5) The method according to (1) above, wherein the nonionic surfactant is an organosilicon surfactant.
(6) The spray solution further contains at least one spreading agent selected from the group consisting of an anionic surfactant, a cationic surfactant and a paraffinic sticking agent. Method.
(7) The method according to (1) above, wherein the water is functional water.
(8) The method according to (7) above, wherein the functional water is acidic water or alkaline ionized water.
(9) The method according to (1) above, wherein the sprayer is a hand sprayer or a mechanical sprayer.
(10) The method according to (9) above, wherein the hand sprayer is a manual sprayer or a power sprayer.

  Non-ionic surfactant improves adhesion unevenness and enhances the spread of chemicals for agricultural chemicals, so that even if a drift reduction nozzle is used, spraying can be performed while maintaining the stable efficacy of agricultural chemicals. Became.

  Below, the agricultural chemicals of this invention, the spraying liquid containing a nonionic surfactant and water, and the method of spraying agricultural chemicals to a plant body or soil are demonstrated in detail.

Bactericidal active ingredient compounds (generic name; including some pending applications) or the Japan Plant Protection Association test code, which is a pesticide in the spray solution. Meaning, and the same shall apply hereinafter)), for example, anilinopyrimidine compounds such as mepanipyrim, pyrimethanil, cyprodinil;
Pyridinamine compounds such as Fluazinam;
Triadimefon, Bitertanol, Triflumizole, Etaconazole, Propiconazole, Penconazole, Flusilazole, Microbutanil, Cyproconazole Cyproconazole), Tebuconazole, Hexaconazole, Furconazole-cis, Prochloraz, Metconazole, Epoxiconazole, Tetraconazole, O Oxpoconazole fumarate, Sipconazole, Prothioconazole, Triadimenol, Flutriafol, Difenoconazole ), Fluquinconazole, Fenbuconazole, Bromuconazole, Diniconazole, Tricyclazole, Probenazole, Simeconazole, Pefurazonate, Pefurazonate, Pefurazonate Azole compounds such as Ipconazole, Imibenconazole, imazalil;
Quinoxaline compounds such as quinomethionate;
Maneb, zineb, mancozeb, polycarbamate, metiram, propineb, ferbam, nabam, metam, thiram Dithiocarbamate compounds such as ziram;
Organochlorine compounds such as fthalide, chlorothalonil, quintozene;
Imidazole compounds such as benomyl, thiophanate-Methyl, carbendazim, thiabendazole, fuberiazole, cyazofamid;
Cyanoacetamide compounds such as cymoxanil;
Metalaxyl, metalaxyl-M, mefenoxam, oxadixyl, offurace, benalaxyl, benalaxyl-M, also known as kiralaxyl, chiax ), Phenylamide compounds such as furalaxyl, cyprofuram;
Sulfenic acid-based compounds such as dichlofluanid; nitrophenyl-based compounds such as dinocap;
Copper-based compounds such as cupric hydroxide and organic copper (Oxine Copper);
Isoxazole compounds such as hymexazol;
Organophosphorus such as fosetyl-aluminum, turfos-methyl, S-benzyl O, O-diisopropyl phosphorothioate, O-ethyl S, S-diphenyl phosphorodithioate, aluminum ethyl hydrogen phosphonate Compound;
N-halogenothioalkyl compounds such as Captan, Captafol, Folpet;
Dicarboximide compounds such as Procymidone, Iprodione, Vinclozolin;
Benzanilide compounds such as Flutolanil, Mepronil, Zoxamid, Tiadinil;
Anilides such as carboxin, oxycarboxin, thifluzamide, MTF-753 (penthiopyrad), boscalid, fluopicolide, fluopyram, bixafen Compounds;
Piperazine compounds such as triforine;
Pyridine compounds such as pyrifenox;
Carbinol compounds such as fenarimol, flutriafol;
Piperidine-based compounds such as fenpropidine;
Morpholine compounds such as fenpropimorph and tridemorph;
Organotin compounds such as fentin hydroxide and fentin acetate;
Urea-based compounds such as pencycuron;
Synamic acid compounds such as dimethomorph, flumorph flumetover;
Phenyl carbamate compounds such as dietofencarb;
Cyanopyrrole compounds such as fludioxonil and fenpiclonil;
Azoxystrobin, kresoxim-methyl, metminomino, metominostrobin, trifloxystrobin, picoxystrobin, oryzastrobin, Strobilurin-based compounds such as dimoxystrobin, pyraclostrobin, fluoxastrobin, fluacrypyrin;
Oxazolidinone compounds such as famoxadone;
Thiazole carboxamide compounds such as ethaboxam;
Silylamide compounds such as silthiopham;
Amino acid amide carbamate compounds such as iprovalicarb, benchthiavalicarb-isopropyl;
Imidazolidine compounds such as fenamidone;
Hydroxyanilide compounds such as fenhexamid;
Benzenesulfonamide compounds such as flusulfamide;
Oxime ether compounds such as cyflufenamid;
Phenoxyamide compounds such as fenoxanil;
Antibiotics such as validamycin, kasugamycin, polyoxins;
Guanidine compounds such as iminoctadine;
Other compounds include tolyfluanid, isoprothiolane, pyroquilon, diclomezine, quinoxyfen, propamocarb hydrochloride, spiroxamine, chlorpicrin, and chloropicrin. Dazomet, metam-sodium, nicobifen, metrafenone, UBF-307, diclocymet, proquinazid, amisulbrom (aka amibromdole), KIF-7767 (KUF-1204, pyribencarb methyl, mepyricarb), Syngenta 446510 (mandipropamid, dipromandamid), 5-chlor-7- (4-methyl-piperidin-1-yl) -6- (2,4,6-trifluor -phenyl)-[1,2,4] triazolo [1,5-a] pyrimidin, OK-5203, and the like. -

Examples of active ingredient compounds (generic name; including some pending applications) of insecticides, acaricides, nematicides or soil pesticides that are pesticides in the spray solution include profenofos and dichlorvos (Dichlorvos), fenamiphos, fenitrothion, EPN, diazinon, chlorpyrifos-methyl, acephate, prothiofos, fothhiazate, phosphocarb, phosphocarb, (Cadusafos), dislufoton, chlorpyrifos, demeton-S-methyl, dimethoate, metamidophos, isoxathion, isofenphos, ethion ), Etrimfos, quinalphos, dimethylvinpho Dimethylvinphos, sulprofos, thiometon, vamidion, pyraclofos, pyridaphenthion, pirimiphos-methyl, propaphos, phosalone, formothion ), Malathion, tetrachlovinphos, chlorfenvinphos, cyanophos, trichlorfon, methidathion, phenthoate, ESP, azinphos-methyl ), Fenthion, heptenophos, methoxychlor, parathion, monocrotophos, imicyafos, parathion-methyl, terbufos, phospamidon ) Met (phosmet), organic phosphoric acid ester compounds such as folate (phorate);
Carbaryl, propoxur, aldicarb, carbofuran, thiodicarb, methomyl, oxamyl, ethiofencarb, pirimicarb, fenobucarb, fenobucarb Carbamates such as carbosulfan, benfuracarb, bendiocarb, furathiocab, isoprocarb, metolcarb, xylylcarb, XMC, fenothiocarb Compound;
Nereistoxin derivatives such as Cartap, Thiocyclam, Bensultap, thiosultap-sodium;
Organochlorine compounds such as dicofol, tetradifon, endosulufan, dienochlor, dieldrin;

Organometallic compounds such as Fenbutatin Oxide and cyhexatin;
Fenvalerate, permethrin, cypermethrin, deltamethrin, cyhalothrin, tefluthrin, etofenprox, cyfluthrin, fenpropathrin , Bifenthrin, flucythrinate, fluvalinate, cycloprothrin, lambda-cyhalothrin, pyrethrin, esfenvalerate, tetramethrin ( tetramethrin, resmethrin, protrifenbute, zeta-cypermethrin, acrinathrin, alpha-cypermethrin, allethrin, gamma Cyhalothrin (gamma-cyhalothrin), theta cypermethrin (theta-cypermethrin), tau-fluvalinate, tralomethrin, profluthrin, beta-cypermethrin, beta-cyfluthrin (beta-) pyrethroid compounds such as cyfluthrin), metofluthrin, phenothrin;
Diflubenzuron, chlorfluazuron, teflubenzuron, flufenoxuron, lufenuron, novaluron, triflumuron, hexaflumuron, noflufluron ), Bistrifluron, benzoylurea compounds such as fluazuron;
Juvenile hormone-like compounds such as metoprene, pyriproxyfen, fenoxycarb, diofenolan;
Pyridazinone compounds such as Pyridaben;
Pyrazole compounds such as fenpyroximate, fipronil, tebufenpyrad, etiprole, tolfenpyrad, acetoprole, pyrafluprole, pyriprole;
Neonicochioids such as imidacloprid, nitenpyram, acetamiprid, thiacloprid, thiamethoxam, clothianidin, dinotefuran, nithiazine;
Hydrazine compounds such as tebufenozide, methoxyfenozide, chromafenozide, halofenozide;

  Other compounds include flonicamid, buprofezin, hexythiazox, amitraz, chlordimeform, silafluofen, triazamate, pymetrozine, rimidi Chlorfenapyr, indoxacarb, acequinocyl, etoxazole, cyromazine, 1,3-dichloropropene, diafenthiuron, benclothiaz (Benclothiaz), flufenerim, pyridalyl, spirodiclofen, bifenazate, spiromesifen, spirotetramat Propargite, clofentezine, fluacrypyrim, metaflumizone, flubendiamide, cyflumetofen, chlorantraniliprole, cyenofluazon, pyenofluafen Examples thereof include compounds such as fenazaquin, amidoflumet, chlorobenzoate, sulfluramid, hydramethylnon, metaldehyde, and ryanodine. Furthermore, Bacillus thuringienses aizawai, Bacillus thuringienses kurstaki, Bacillus thuringienses israelensis, Bacillus thuringienses japonensis, Bacillus thuringienses tenebrionis, crystalline protein toxins produced by Bacillus thuringienses, entomopathogenic fungi, nematode pathogenic fungi, etc. Microbial pesticides, avermectin, emamectin-benzooate, milbemectin, spinosad, ivermectin, lepimectin, DE-175, abamectin, emamectin (emmectin) antibiotics such as emamectin) or semi-synthetic antibiotics; natural products such as azadirachtin, rotenone; repellents such as deet.

  As the active ingredient compound of the herbicide in the agrochemicals described above, it can be appropriately selected from, for example, the following compound groups (1) to (10) (generic name; including some applications). Even when there is no particular description, when various structural isomers such as salts, alkyl esters, and optical isomers exist in these compounds, they are naturally included.

  (1) 2,4-D, 2,4-DB, 2,4-DP, MCPA, MCPB, MCPP, naproanilide, phenoxy such as clomeprop; 2,3,6-TBA; Aromatic carboxylic acids such as dicamba, dichlobenil, picloram, triclopyr, clopyralid, aminopyralid; other naptalam, benazolin, quinro It is said that herbicidal activity is shown by perturbing the hormonal action of plants such as quinclorac, quinmerac, diflufenzopyr, fluroxypyr, thiazopyr, etc. thing.

  (2) urea systems such as chlorotoluron, diuron, fluometuron, linuron, isoproturon, metobenzuron, tebuthiuron; simazine, Atrazine, atratone, simetrin, promethrin, dimethametryn, hexazinone, metribuzin, terbuthylazine, cyanazine, ametrine, ametrine Triazines such as cybutryne, triaziflam, propazine, terbutryn; uracils such as bromacil, lenacil, terbacil; propanil , Sipromi Anilides such as cypromid; carbamates such as swep, desmedipham, phenmedipham; bromoxynil, bromoxynil-octanoate, ioxynil ) Hydroxybenzonitriles such as pyridate, bentazon, amicarbazone, methazole, etc. that are said to show herbicidal efficacy by inhibiting plant photosynthesis .

  (3) Quaternary ammonium salt systems such as paraquat and diquat, which are said to themselves become free radicals in the plant body and generate active oxygen to show rapid herbicidal efficacy.

  (4) Nitrofen, Chlomethoxyfen, bifenox, acifluorfen-sodium, fomesafen, oxyfluorfen, lactofen, ethoxyphenethyl Diphenyl ethers such as (ethoxyfen-ethyl); cyclic imides such as chlorphthalim, flumioxazin, flumiclorac-pentyl, fluthiacet-methyl; and other oxadiargyl ( oxadiargyl), oxadiazon, sulfentrazone, carfentrazone-ethyl, thidiazimin, pentoxazone, azafenidin, isopropazol Isopropazole, pyraflufen-ethyl, benzfendizone, butafenacil, metobenzuron, cinidon-ethyl, flupoxam, fluazolate, Inhibits plant chlorophyll biosynthesis, such as profluazol, pyrachlonil, flufenpyr-ethyl, and bencarbazone, and causes photosensitized peroxides in the plant It is said to show herbicidal efficacy by accumulating abnormally.

  (5) Pyridazinones such as norflurazon, chloridazon, metflurazon; pyrazolate, pyrazoxifene, benzofenap, topramezone, BAS-670H, pyra Pyrazoles such as pyrasulfotole; other amitrol, fluridone, flurtamone, diflufenican, methoxyphenone, clomazone, sulcotrione, Mesotrione, tembotrione, tefuryltrione, AVH-301, isoxaflutole, difenzoquat, isoxachlorotole, benzobicyclon (benz) Inhibits pigment biosynthesis of carotenoids and other plants such as obicyclone), picolinafen, and biflubutamide (beflubutamid), and is said to show herbicidal properties characterized by whitening.

  (6) Diclohopop-methyl, flamprop-M-methyl, pyriphenop-sodium, fluazifop-butyl, haloxyhop-methyl ( Aryloxyphenoxy such as haloxyfop-methyl, quizalofop-ethyl, cyhalofop-butyl, fenoxaprop-ethyl, metamifop-propyl Propionic acid system: alloxydim-sodium, crethodim, sethoxydim, tralkoxydim, butroxydim, tepraloxydim, caloxydim, clefoxydim , Cyclohexanedione such as profoxydim What is specifically herbicidal activity to grasses are found strongly, such as.

  (7) Chlorimuron-ethyl, sulfometuron-methyl, primisulfuron-methyl, bensulfuron-methyl, chlorsulfuron, methos Methylsulfuron-methyl, Cinosulfuron, pyrazosulfuron-ethyl, azimsulfuron, flazasulfuron, rimsulfuron, nicosulfuron, imazosulfuron imazosulfuron, cyclosulfamuron, prosulfuron, flupirsulfuron, trisulfuron-methyl, halosulfuron-methyl, thifensulfuron-methyl ), Et Cissulfuron, oxasulfuron, ethametsulfuron, flupirsulfuron, iodosulfuron, sulfosulfuron, triasulfuron, tribenuron Methyl (tribenuron-methyl), tritosulfuron (tritosulfuron), forum sulphuron (foramsulfuron), trifloxysulfuron (trifloxysulfuron), isosulfuron-methyl (isosulfuron-methyl), mesosulfuron-methyl (mesosulfuron-methyl), orthosulfur Sulfonylureas such as compounds described in orthosulfamuron, flucetosulfuron, amidosulfuron, TH-547, international publication WO2005092104; flumetsulam, metosulam, Dicro Triazolopyrimidinesulfonamides such as diclosulam, cloransulam-methyl, florasulam, metosulfam, penoxsulam; imazapyr, imazethapyr, imazakin (Imazaquin), imazamox, imazameth, imazamethabenz, imidazolinones such as imazapic; pyrithiobac-sodium, bispyribac-sodium ), Pyrimidinyl salicylic acid systems such as pyriminobac-methyl, pyribenzoxim, pyriftalid, pyrimisulfan, KUH-021; flucarbazone, procarbazone sode Sulfonylaminocarbonyltriazolinones such as procarbazone-sodium; other glyphosate, glyphosate-ammonium, glyphosate-isopropylamine, sulfosate, glufosinate ), Glufosinate ammonium salt (glufosinate-ammonium), vilanafos (bilanafos) and the like that are said to show herbicidal activity by inhibiting the amino acid biosynthesis of plants.

  (8) Dinitroaniline such as trifluralin, oryzalin, oryzalin, nitalin, pendimethalin, ethalfluralin, benfluralin, prodiamine; Amides such as bensulide, napronamide, pronamide; amiproos-methyl, butamifos, anilofos, piperines such as piperophos; Phenyl carbamates such as propham, chlorpropham, and barban; cumylamines such as daimuron, cumyluron and bromobutide; other aslamum and dithiopyr (Dithiopyr), thiazopyr (Thiazopyr), caffeentrol (cafenstrole), indanofan (indanofan), etc. that are said to show herbicidal efficacy by inhibiting plant cell mitosis.

  (9) alachlor, metazachlor, butachlor, pretilachlor, metolachlor, S-metolachlor, tenylchlor, petoxamide , Acetochlor, propachlor, chloroacetamides such as propisochlor; carbamates such as molinate, dimepiperate, pyributicarb; and other etobenzanid ), Mefenacet, flufenacet, tridiphane, fentrazamide, oxaziclomefone, dimethenamid, benfuresate, etc. What is showing the herbicidal effect by inhibiting protein biosynthesis or lipid biosynthesis of plants as.

  (10) EPTC, butylate, vernolate, pebulate, cycloate, prosulfocarb, esprocarb, thiobencarb, diallate, triarate Thiocarbamate systems such as (triallate); other MSMA, DSMA, endothall, etofumesate, sodium chlorate, pelargonic acid, fosamine, pinoxaden, HOK-201 etc.

In the following, the non-ionic surfactants and the compounds in parentheses () of the spreading agent represent% by mass.
Nonionic surfactants in spray solution include Makupika (polyoxyethylene methyl polysiloxane 93%), trade name dynamic (DyneAmic; SETRE CHEMICAL), trade name kinetic (KINETIC; made by SETRE CHEMICAL) , Organosilicon surfactants such as trade name Silwet L-77 (SILWETT L-77; manufactured by Witco) and trade name slipper (SLIPPA; manufactured by INTERAGRO); Approach BI (polyoxyethylene hexitan fatty acid ester 50%) , Alsoap 30 (polyoxyethylene nonylphenyl ether 30%), squash (sorbitan fatty acid ester 70% + polyoxyethylene resin acid ester 5.5%), TWEEN20 (fatty acid polyoxyethylene sorbitan ester (manufactured by Wako Pure Chemical Industries, Ltd.)) Sorbitan higher fatty acid ester type surfactant; Surfactant WK (polyoxyethylene dodecyl ether 78 %), Supply (polyoxyethylene dodecyl ether 3%), Santocten 40 (polyoxyethylene dodecyl ether 40%), Santocten 80 (polyoxyethylene dodecyl ether 80%) and other polyoxyethylene dodecyl ethers; Pangard KS-20 (Polyoxyethylene fatty acid ester 20%), mix power (polyoxyethylene alkyl phenyl ether 40% + polyoxyethylene alkyl ether 40%), Ayer (polyoxyethylene alkyl phenyl ether 8.5% + polyoxyethylene fatty acid ester 4%) , Ayer 20 (polyoxyethylene alkylphenyl ether 10% + polyoxyethylene fatty acid ester 10%), adaptene (polyoxyethylene alkylphenyl ether 24%), admix (polyoxyethylene alkylphenyl ether) 36%), King Kaiten (15% polyoxyethylene nonylphenyl ether), Xalino (50% polyoxyethylene octyl phenyl ether), Xalino 10 (10% polyoxyethylene octyl phenyl ether), Glass ticker (Polyoxyethylene dodecyl) Ether 80%), KK. Sticker (Polyoxyethylene resin acid ester 70%), Spray sticker (Polyoxyethylene resin acid ester 70% + Polyoxyethylene nonylphenyl ether 4.7%), Tamajet (D-Sorbit 60) %), Tocten (polyoxyethylene alkyl phenyl ether 15% + polyoxyethylene fatty acid ester 5%), high ten A (polyoxyethylene alkyl ether 30%), high ten power (polyoxyalkylene fatty acid ester 30%), bath fatene (poly Oxyethylene Decyl ether 78%), platen (polyoxyethylene dodecyl ether 80%), frothnine (polyoxyethylene fatty acid ester 25% + polyoxyethylene alkylphenyl ether 5%), betalin-A (polyoxyethylene nonylphenyl ether 14% + Polyoxyethylene octylphenyl ether 6%), Betalin B (polyoxyethylene dodecyl ether 20%), Myrino (polyalkylene glycol alkyl ether 27%), Lenaten (polyoxyethylene dodecyl ether 78%), Neoesterin (polyoxy And ethylene nonyl phenyl ether 20% + polyoxyethylene fatty acid ester, polyoxyethylene resin acid ester 10%), Rabicoat (polyvinyl acetate 23%), and the like. Among these, it is desirable to use an organosilicon surfactant, a sorbitan higher fatty acid ester type surfactant, polyoxyethylene dodecyl ether, Pangard KS-20, or mix power. Of these, organosilicon surfactants are particularly desirable.

  The spray liquid should appropriately contain at least one spreading agent selected from the group consisting of nonionic surfactants, anionic surfactants, cationic surfactants, and paraffinic sticking agents. You can also. In the present invention, the nonionic surfactant is generally used at a concentration of 50 to 4000 ppm, preferably 100 to 2000 ppm.

  As anionic surfactants for spreading agent, Aron A (sodium polyacrylate 2%), Agros spreading agent S (polyoxyethylene nonylphenyl ether 15% + polyoxyethylene butyl ether 10% + polynaphthylmethanesulfone) Acid sodium 5%), Wontz (polyoxyethylene fatty acid ester 44% + polynaphthylmethanesulfonic acid dialkyldimethylammonium 18%), King Shinten 75 (polyoxyethylene nonylphenyl ether 60% + dioctyl sodium sulfosuccinate 15%), Grameen (Polyoxyethylene nonyl phenyl ether 10% + sodium polynaphthylmethane sulfonate 6%), Grameen S (Polyoxyethylene nonyl phenyl ether 15% + polyoxyethylene fatty acid ester 5% + polynaphthyl methane sulfonate sodium 4%), Cumite (Polyoxyethylene nonyl phenyl ether 20% + polynaphthyl methane sulfonate 6%), submerged (sodium alkylbenzene sulfonate 50%), new gramine (polyoxyethylene dodecyl ether 10% + polyoxyethylene nonyl phenyl ether 10% + Calcium lignin sulfonate 12%), Cyndine (10% polyoxyethylene nonyl phenyl ether + 10% calcium lignin sulfonate), new linole (20% calcium lignin sulfonate + 10% polyoxyethylene nonyl phenyl ether), die coat ( Polyoxyethylene nonylphenyl ether 30% + dioctyl sodium sulfosuccinate 9%), Dyne (polyoxyethylene nonylphenyl ether 20% + lignin sulfonate 12%), special reno (polyoxyethyl) Lennonyl phenyl ether 10% + polyoxyethylene octyl phenyl ether 10% + calcium lignin sulfonate 12%, Tokuace (9% sodium dialkylsulfosuccinate + 31% polyoxyethylene alkylphenyl ether), Tomoten (polyoxyethylene alkylphenyl) 15% ether + 10% calcium lignin sulfonate), S-hatten (24% polyoxyethylene nonyl phenyl ether + 5% sodium polynaphthylmethane sulfonate), Van Noh (20% polyoxyethylene alkyl phenyl ether + calcium lignin sulfonate) 12%), Bravo (48% sorbitan fatty acid ester + 28% polyoxyethylene fatty acid ester + 2.5% dialkyldimethylammonium polynaphthylmethanesulfonate), Besten (polyoxyethylene nonylpheny 30% ether + 7% sodium dioctyl sulfosuccinate), Yamato spreading agent (15% polyoxyethylene octyl phenyl ether + 5% polyoxyethylene resin acid ester + 5% sodium polynaphthylmethanesulfonate), rabidene 3S (polyoxy And ethylene alkyl ether 8% + polyoxyethylene fatty acid ester 3% + dioctyl sodium sulfosuccinate 1.4%), RIKEN sprayer (polyoxyethylene nonylphenyl ether 20% + polynaphthyl methanesulfonic acid sodium 6%), and the like. Among these, it is desirable to use submerged, toqueace or bravo.

  Examples of the cationic surfactant as a spreading agent include sutcut (alkyl trimethylammonium chloride 50%), needs (polyoxyethylene fatty acid ester 44% + polynaphthylmethanesulfonate dialkyldimethylammonium 18%), and the like. Among these, it is desirable to use needs.

  Paraffin-based adhesives for spreading agents include Agroguard (42% paraffin), Avion-E (24% paraffin), Kyknow (24% paraffin), Steckel (24% paraffin), Sulate 24 (24% paraffin), Examples include tic (24% paraffin), paraffin 24 (24% paraffin), panguard A (16% paraffin), and petan V (42% paraffin).

  As water used by this invention, you may use functional waters, such as acidic water, alkali ion water, or magnetized water. In this case, it can be expected to further increase the activity of the plant to which the agricultural chemicals are applied. As functional water, acidic water or alkaline ionized water is desirable.

  In the present invention, the mixing ratio of the agricultural chemicals, the nonionic surfactant and water in the spray liquid is 0.0001 to 4 mass% for the agricultural chemicals, 0.001 to 4 mass% for the nonionic surfactant and 99.9989 to water. 92% by mass, preferably 0.001 to 0.4% by mass of agricultural chemicals, 0.01 to 0.4% by mass of nonionic surfactant, and 99.989 to 99.2% by mass of water.

Examples of the drift reduction nozzle used in the present invention include a sprayer for hand sprayers and a machine sprayer. The manual spraying sprayer is further divided into a manual sprayer and a power sprayer.
As the drift reduction nozzle, a nozzle that discharges dispersed particles having an average particle size of 120 μm or more is desirable. Since these nozzles can make particles larger than ordinary nozzles by mixing air into the chemical solution during ejection, drift can be reduced.

  There are various types of drift reduction nozzles for sprayers for manual spraying, but for human power, the round tip N-KAL (product name: round nozzle, Kirinashi weeding nozzle, summer rack type 5 (above, Yamaha) Drift-reducing nozzle for herbicides, etc. manufactured by Kogyo Co., Ltd .; New wide-angle nozzle plate for human power NN-SL (Product name: New wide-angle head for human power, New wide-angle head for human power, 2 heads (above, manufactured by Yamaha Industries) ), Etc., but is not limited to these.

  There are various types of drift reducing nozzles for hand-sprayed power sprayers. For example, powerful Kirinashi chip N-KF, powerful Kirinashi chip N-KE (trade name: Kirinashi plastic 2 head mouth to 3 head mouth, Kirinashi switching nozzle P-700-1200 type, Kirinashilite 2 type (above, manufactured by Yamaha Industrial Co., Ltd.)) , SVK spout plate SV (trade name: 2 heads of killer tree fruit tree, 3 heads of killer star fruit tree (above, manufactured by Yamaha Industrial Co., Ltd.)), ceramic spout plate CV (product name: 2 heads of ceramic vertical, 3 heads of ceramic vertical ( Drift reduction nozzle for fruit trees such as YAMAHO INDUSTRIAL CO., LTD.); Kirinashi ES chip N-ES (Product name: Kirinashi ES Lily 3-6 heads, Cantilever boom / Medium boom (Kirinashi ES), Kirinashi ES -SD2 head (above, manufactured by Yamaha Industries Co., Ltd.)), Kirinashi KS chip N-KS (trade name: Kirinashi KS tea / vegetables 3-6 heads (above, manufactured by Yamaha Industry Co., Ltd.)), Kirinashi Y type chip N- KAY45 (Product name: Kirinashi W Lily of the valley 3-6 heads (above, manufactured by Yamaha Industrial Co., Ltd.)), powerful Kirinashi Chip N-KF, Powerful Kirinashi Chip N-KE (trade name: Kirinashisten ridge (15, 20, 30 type) (above, manufactured by Yamaha Industrial Co., Ltd.)), Kirinashi KS Chip N-KS (Product name: Switching Stainless 11S, Switching Stainless 14S (Yamaho) Drift reduction nozzles for vegetables (plane) such as ceramic spray plate CV (product name: Ceramics Run 3-6 head mouth (above, manufactured by YAMAHO KOGYO Co., Ltd.)); Kirinashi KS chip N-KS (product) Name: Kirinashi KS-P2 head mouth, Kirinashi KS-standing vegetable 2 head mouth, Kirinashi KS-standing vegetable 3 head mouth (above, manufactured by Yamaha Industrial Co., Ltd.)), Kirinashi ES chip N-ES (Product name: Kirinashi ES-SD2 Drift reduction for vegetables (standing vegetables) such as the head mouth (Yamaho Kogyo Co., Ltd.), ceramic spray plate CV (Product name: Ceramic Vertical 2 Head, Ceramic Vertical 3 Head (Yamaho Kogyo)) Nozzle; Strong Kirinashi Tip N-KF, Strong Kirinashi Tip N-KE, Kirinashi KS Tip N-KS (trade name: Kirinasi Tens Minato (15, 20, 30) (Yamaho Kogyo Co., Ltd.)), Strong Kirinashi Tip N-KF, Strong Kirinashi Tip N-KE, Kirinashi KS Tip N-KS, Wide Angle Kirinashi Tip N-KA Drift reduction nozzles for paddy fields such as switching stainless steel shore 14S type; Powerful Kirinashi Chip N-KF (Product Name: Powerful Kirinashi Tea Spout (Yamaho Kogyo Co., Ltd.)), Kirinashi KS Chip N-KS (Kirinashi KS Tea / Vegetable) No. 3-6 head, Kirinashi special tea nozzle, SVK nozzle plate SV (Product name: Kirister LD4 head, Kirister LD45 head, Kirister LD46 head (above, manufactured by Yamaha Industries)), etc. ; Drift reduction nozzle for herbicides such as wide-angle Kirinashi Chip N-KA (trade name: Round nozzle, Kirinashi Weeding Nozzle, Summer Rack 5 type (above, manufactured by YAMAHO KOGYO Co., Ltd.)) (Manufactured by Seisakusho), eco-shower for boom sprayers (( (Maruyama Seisakusho Co., Ltd.), D-cut nozzle for Kyoritsu SS, D-cut nozzle for Kyoritsu boom, electrostatic nozzle eco nozzle KSN-1 and KSN-2 (manufactured by Kyoritsu Co., Ltd.), but are limited to these There is nothing.

Speed sprayers and boom sprayers are used for machine spraying. Drift reduction nozzles such as SVK jet plate SV (product name: SVK jet plate 2L to 5L (manufactured by Yamaha Industries)) are used for speed sprayers, and Kirinashi ES chip N-ES (product name: Kirinashi ES) is used for boom sprayers. Nozzle 8-type direct P1 head (manufactured by YAMAHO KOGYO Co., Ltd.)), saving nozzle N-SVN (product name: saving nozzle 5-type direct P1 head), SS eco-shower (manufactured by Maruyama Mfg. Co., Ltd.) Reduction nozzles are used, but are not limited to these.

Drift reduction nozzles with different spray patterns include drift reduction nozzles such as solid (straight nozzle), hollow cone nozzle (hollow cone nozzle), full cone nozzle (full cone nozzle), and flat nozzle (fan nozzle). Can be mentioned.

EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, it limits to these and is not interpreted.
Example (Cucumber powdery mildew field test)
A chemical solution adjusted to a prescribed dose was sprayed on a cucumber (variety: Sagamihanjiro) in an open-air plant by spraying on the back. As nozzles, a Kirinashi nozzle (two heads for KS vegetables or strong Kirinashi tea, manufactured by Yamaha Industries Co., Ltd.) and a conventional nozzle were used. The amount of sprayed water was set to 1500 L or 3000 L per hectare, and 2000 times trifmine wettable powder (150 ppm of trifumisol) was sprayed. The severity of the disease was investigated on the middle 10 cucumber leaves.

Determination of disease severity was performed according to the disease incidence index below, and the average disease severity in each treatment area was calculated.
Disease index: 0: No disease is found
Disease index 1: Slight lesions and sporulation (several)
Disease index 2: Less than 1/4 of the leaves show lesions and sporulation
Disease index 3: Spots and sporulation are observed in 1/4 to 1/2 of the leaves
Disease index 4: Disease spots and sporulation are observed in more than half of the leaves.
Disease severity = {(total disease index) ÷ (4 x number of leaves surveyed)} x 100

Test example 1
Since the average disease severity in the field was 6, spraying of the drug was performed twice at intervals of 7 days, and the disease severity was determined 13 days after the final spraying. The test results are shown in Table 1.

1回散布前の平均発病度は６であった。まくぴか5000倍中には、ポリオキシエチレンメチルポリシロキサンが186ppm含まれる(以下同じ)。

The average severity before spraying was 6. Makupika 5000x contains 186 ppm of polyoxyethylene methylpolysiloxane (the same applies hereinafter).

When spraying using a drift reduction nozzle (2 heads for KS vegetables), it was possible to reduce the disease severity to the same level as or more than the conventional nozzle when using Makupika.

Test example 2
When the average disease severity in the field was 50.3, drug spraying was performed once, and the disease severity was determined 10 days later. The test results are shown in Table 2.

散布前の平均発病度は50.3であった。

The average severity before spraying was 50.3.

  When spraying with a drift-reducing nozzle (for powerful Kirinashi tea), when using Makupika, the disease severity could be suppressed to the same level as or more than the conventional nozzle.

Test example 3
The medicine was sprayed once in the field, the severity was determined after 5 days, and the difference in the severity before and after treatment was determined. The test results are shown in Table 3. In addition, the test was conducted by a triple system.

ミックスパワー3000倍中には、ポリオキシエチレンアルキルフェニルエーテル133.3ppmが含まれる。
ドリフト低減ノズル(KS野菜用２頭口)を使用して薬剤あるいは水を散布した試験では、オルガノシリコン系のまくぴかを併用した場合においてのみ、発病を抑えた結果が得られた。

In the mix power 3000 times, 133.3 ppm of polyoxyethylene alkylphenyl ether is contained.
In a test in which a drug or water was sprayed using a drift reduction nozzle (2 heads for KS vegetables), the result of suppressing the disease was obtained only when an organosilicone makika was used in combination.

  If the spray liquid containing the nonionic surfactant of the present invention is used, the surface tension of the spray liquid is remarkably lowered and the spreadability of the spray liquid is increased, so that uneven adhesion is less likely to occur and the efficacy of agricultural chemicals is improved. Stable spraying is possible with a sprayer equipped with a drift reducing nozzle.

Claims (10)

A method of spraying agricultural chemicals on a plant or soil, wherein the spray liquid containing agricultural chemicals, nonionic surfactant and water is sprayed using a sprayer equipped with a drift reduction nozzle. The method according to claim 1, wherein the pesticide is at least one selected from the group consisting of fungicides, insecticides, herbicides, plant growth regulators, repellents and fertilizers. The method according to claim 1, wherein the pesticide is at least one pesticide selected from the group consisting of fungicides, insecticides, herbicides, plant growth regulators and repellents. The method according to claim 1, wherein the soil is soil in which a plant body is planted or soil in which a plant body is to be planted. The method according to claim 1, wherein the nonionic surfactant is an organosilicon surfactant. The method according to claim 1, wherein the spray liquid further contains at least one spreading agent selected from the group consisting of an anionic surfactant, a cationic surfactant, and a paraffinic fixing agent. The method according to claim 1, wherein the water is functional water. The method according to claim 7, wherein the functional water is acidic water or alkali ion water. The method according to claim 1, wherein the sprayer is a hand sprayer or a mechanical sprayer. The method according to claim 9, wherein the hand sprayer is a manual sprayer or a power sprayer.