CN103140135B - Copulation disruption agent for sap-sucking pests - Google Patents

Abstract

A copulation disruption agent for sap-sucking pests which are considered the principal pests in rice cultivation is disclosed. Applying flonicamid to sap-sucking pests that affect rice cultivation disrupts the copulatory behavior thereof, effecting stable, effective pest control over the long term. This is a completely unpredicted effect, distinctly different from the simple pesticidal use of flonicamid. Disclosed are: a copulation disruption agent for sap-sucking rice parasites, said agent containing flonicamid as an active ingredient; and a method, in which said copulation disruption agent is processed, for disrupting the copulatory behavior of the aforementioned pests.

Description

Mating behavior disruptor for sap-sucking pests

technical field

The present invention relates to an agent for interfering with mating behavior of juice-sucking pests.

Background technique

N-cyanomethyl-4-trifluoromethyl-3-pyridinecarboxamide (common name flonicamid) is a compound described as Compound No. 1 in Patent Document 1. Patent Document 2 describes a pest control agent composition containing a pyridine-based compound including flonicamid and various efficacy enhancing components.

prior art literature

patent documents

Patent Document 1: European Patent Publication No. 580374

Patent Document 2: International Publication WO 2009/128409

Contents of the invention

The problem to be solved by the invention

Planthoppers, which are sap-sucking pests considered to be major pests in the field of rice cultivation, have high fecundity and cause great damage to rice. In particular, the brown planthopper repeatedly proliferates through multiple generations until the harvest period, and causes flat blight of rice as the main damage. The so-called tsuboku refers to the damage of rice dead and/or lodging due to the sap-sucking damage of the brown planthopper. At present, neonicotinoid-based insecticides are the mainstream of insecticides against planthoppers. However, in recent years, planthoppers with reduced sensitivity to neonicotinoid-based insecticides have suddenly been discovered. Therefore, in the field of rice cultivation, It is hoped that neonicotinoid insecticides can be replaced as new mainstream control agents or control methods.

method used to solve the problem

The ecology of the brown planthopper is characteristic, and the inventors of the present invention conducted research in relation to the characteristic ecology in the control of planthoppers including the brown planthopper.

Brown planthoppers cannot overwinter in areas north of Vietnam. For example, in Japan, long-winged adults that fly from overseas on low-altitude jet streams mainly during the rainy season from late June to July become the source of occurrence. Compared with the white-backed planthopper, which also flies from overseas, the flying density is very low, and the parasitic density at the time of flying does not cause major problems.

However, after flying, the female adult lays eggs in the tissue of the rice leaf sheath through a pre-oviposition period of about 4 days, and becomes the next generation after 7-9 days of the egg period and 14 days of the larval period at 25°C (1st generation) adults. Female adults of the first generation tend to be brachypterous with a high multiplication rate. Brachypterous females do not move very much and lay many eggs, so the population of the 2nd generation individuals is localized and the density increases exponentially, causing flat dryness during the occurrence of the 2nd or 3rd generation.

In addition, even in Southeast Asian countries south of Vietnam where brown planthoppers can overwinter, the above-mentioned local multiplication and flat blight cause great damage in the same way.

In addition, currently, no pesticides have been found that are effective against eggs of brown planthoppers and are safe for the environment and beneficial insects.

In view of this, the inventors of the present invention focused on reducing the number and density of the next generation of pests by making the flying adults and the first-generation adults non-laying, difficult to lay eggs, and eggs not hatching to find a method of preventing damage by brown planthoppers.

As a result, the inventors of the present invention found that, among various active ingredients of pesticides, flonicamid can solve the above-mentioned problems, and has an effect of interfering with mating behavior of sap-sucking pests, thereby completing the present invention. The so-called interfering action of mating action in the present invention refers to the action of inhibiting females from attracting males by vibrating their abdomen, and inhibiting a series of mating actions by males looking for females. As a result of interfering with the mating action in this way, the number of eggs laid by the female decreases, and the laid eggs do not hatch because they are unfertilized eggs.

That is, the present invention relates to a method for controlling juice-sucking pests by allowing flonicamid to act on them, a method for reducing the number of individuals of the next generation of juice-sucking pests, and a method for interfering with mating behavior of juice-sucking pests.

The effect of the invention

The mating action disturbing agent and control method of juice-sucking pests of the present invention can exert stable and high control effect for a long time.

In addition, the present invention separates from the use of flonicamid as a simple pesticide, and exhibits a completely unexpected effect of reducing the number of individuals of the next generation of pests. For example, in the case of the treatment of seedling boxes, the control agents used in the past cannot expect long-term effects, so it is necessary to carry out multiple treatments with spraying agents, but in the method of the present invention, at least the cost of spraying agent treatment can be reduced. frequency. Applying the completely unexpected effect of "reducing the number of individuals of the next generation of pests" disclosed in the present invention, for example, when it is applied to the treatment of nursery boxes, can exert a sufficient long-term control effect on sap-sucking pests that is usually expected.

Description of drawings

Fig. 1 is a graph showing the results of the effect of suppressing the number of individuals of the next generation when a brown planthopper adult stocking test was performed by treating a nursery box with flonicamid granules.

Fig. 2 is a graph showing the results of the effect of suppressing the number of individuals of the next generation when a brown planthopper adult stocking test was performed by the nursery box treatment of flonicamid granules for nursery box treatment.

Detailed ways

The active ingredient of the pesticide in the present invention is flonicamid. Fluonicamid (flonicamid) is a common name, and its chemical name is N-cyanomethyl-4-trifluoromethyl-3-pyridinecarboxamide. Flunicamid sometimes forms salts.

In the present invention, rice parasitic sap-sucking pests include planthoppers, leafhoppers, and stinkbugs.

Examples of planthoppers include brown planthoppers, white-backed planthoppers, and brown planthoppers; leafhoppers include black-tailed leafhoppers;

In the present invention, the above-mentioned sap-sucking pests preferably include planthoppers and leafhoppers. More preferably, planthoppers are mentioned.

More preferably, brown planthopper is mentioned.

Examples of the juice-sucking pests to be controlled by the present invention include juice-sucking pests with reduced sensitivity to neonicotinoid-based insecticides.

In the present invention, flonicamid can be used in combination with nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, animal and vegetable oils, mineral oils, water-soluble polymers, and resins. and at least 1 potency enhancing ingredient in the wax.

In the present invention, flonicamid can be mixed with various adjuvants in the same way as conventional pesticide preparations, and can be formulated into various formulations such as emulsions, powders, wettable powders, soluble liquids, granules, and suspensions. form. Examples of the adjuvants here include carriers, suspending agents, thickeners, stabilizers, dispersants, wetting agents, penetrating agents, antifreezing agents, antifoaming agents, and the like, which may be appropriately added as needed. Carriers are classified into solid carriers and liquid carriers. Examples of solid carriers include starch, sugar, cellulose powder, cyclodextrin, activated carbon, soybean flour, wheat flour, rice husk powder, wood flour, fish powder, milk powder, and other animals and plants. Talc, kaolin, bentonite, organic bentonite, calcium carbonate, calcium sulfate, sodium bicarbonate, zeolite, diatomaceous earth, white carbon, clay, alumina, silica, sulfur powder, slaked lime and other mineral powders, etc. Examples of the liquid carrier include water; alcohols such as ethanol and ethylene glycol; ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone, and isophorone; ethers such as dioxane and tetrahydrofuran; kerosene , kerosene, liquid paraffin and other aliphatic hydrocarbons; toluene, xylene, trimethylbenzene, tetramethylbenzene, cyclohexane, solvent naphtha and other aliphatic hydrocarbons; chloroform, chlorobenzene and other halogenated hydrocarbons; Amides such as N,N-dimethylformamide; Esters such as ethyl acetate and fatty acid glycerides; Nitriles such as acetonitrile; Sulfur-containing compounds such as dimethyl sulfoxide or N-methyl-2-pyrrolidone, etc. As a dispersant, polyhydric carboxylic acid or its salt, lignosulfonic acid or its salt, etc. are mentioned. In the case of using the above-mentioned efficacy-enhancing ingredient, flonicamid may be mixed and formulated together with the above-mentioned efficacy-enhancing ingredient, or may be separately formulated and then mixed. In actual use of these preparations, they can be used as they are, or diluted to a predetermined concentration with a diluent such as water.

In the present invention, flonicamid can be treated in a nursery box, or in a paddy field. In the method of the present invention, since a particularly large and remarkable effect is exhibited by making juice-sucking pests suck juice, treatment in a nursery box is preferable. The reason for this is that flonicamid, which is an active ingredient of the pesticide with high water solubility, can efficiently enter the plant body due to the action of absorbing the drug from the roots of the rice by the treatment in the nursery box.

In the present invention, flonicamid can be formulated into various forms as described above, but among them, granules for nursery box treatment are preferred from the viewpoint of treatment in a nursery box.

Examples of suitable granules for treating seedling boxes in order to exert the effect of the present invention include the following composition, which is characterized in that it is a composition containing flonicamid and a poorly water-soluble resin, and fluoride is contained in the preparation. Acetamid and the poorly water-soluble resin form a matrix, that is, a composition in which flonicamid enters the poorly water-soluble resin, which will be described in detail below.

The active ingredient flonicamid used in the present invention is known to be a compound with very high water solubility (water solubility at 20° C.: 5200 mg/L). Chemicals for nursery box treatment need long-term sustained efficacy, so it is required to control the dissolution of active ingredients of pesticides. On the other hand, it is difficult to apply compounds with extremely high water solubility such as flonicamid to this use method. The above-mentioned composition is an effective means for solving the above-mentioned problems caused by the water solubility of flonicamid. The compounding amount is 0.1 to 30% by weight, preferably 0.5 to 25% by weight.

The average particle diameter of flonicamid used in the present invention is 1 to 500 μm, preferably 1 to 100 μm, more preferably 5 to 50 μm.

Examples of poorly water-soluble resins that can be used in the present invention include ethylene/vinyl acetate copolymers, ethylene/acrylic acid copolymers, ethylene/Veova copolymers, styrene/acrylic acid copolymers, acrylates, acrylic acid/silicon copolymers substances, oxidized polyethylene, polyurethane resin, petroleum resin, etc. A poorly water-soluble resin is preferably used as an emulsion, and an ethylene/acrylic acid copolymer emulsion is particularly preferred. Examples of ethylene/acrylic acid copolymer emulsions include HYTEC S-3111, HYTEC S-3121, and HYTEC S-3127 (manufactured by Toho Chemical Industry Co., Ltd.). These resin emulsions can be used not only alone but also in combination. The compounding amount is 0.1 to 30% by weight, preferably 1 to 15% by weight in terms of solid content.

The carrier used in the present invention is not particularly limited, and for example, carriers such as clay, bentonite, talc, calcium carbonate, zeeklite, sericite, acid clay, diatomaceous earth, zeolite, perlite, and attapulgite can be used. There is no particular limitation on the blending amount, but it is within a range of 40 to 99.8% by weight, preferably 60 to 98.5% by weight.

Since the above-mentioned composition uses a poorly water-soluble resin, its compatibility with water is poor, and the agent may float after rice field transplantation, so it is preferable to add a wetting agent. Examples of wetting agents include sodium dioctylsulfosuccinate, sodium alkylbenzenesulfonate, higher alcohol sulfate, sodium alkylnaphthalenesulfonate, polyoxyethylene phenyl ether sulfate, polyoxyethylene styrene Phenyl ether sulfate, polyoxyethylene alkyl ether, etc., Preferably, polyoxyethylene styryl phenyl ether sulfate is mentioned. These humectants can be used not only alone but also in combination. When a humectant is used, the compounding amount is not particularly limited, but is 0.01 to 10% by weight, preferably 0.1 to 5% by weight.

The above-mentioned composition can be granulated by a granulation method commonly used in the manufacture of pesticides, for example, extrusion granulation, tumbling granulation, tumbling flow granulation, fluidized bed granulation, compression granulation, stirring and mixing granulation, etc. Granulation method, coated granulation method, tabletting method, etc.

For example, after uniformly mixing flonicamid, wetting agent and carrier, adding a water-insoluble resin emulsion, kneading with a kneader, etc., extruding granulators such as wet extrusion granulators (dome Gran) Granulation, drying, and sizing are carried out to obtain the above-mentioned composition.

In addition, an elution control agent such as paraffin may be added to the above-mentioned composition if necessary in order to further control the elution rate.

In the above-mentioned composition, in addition to the above-mentioned components, as optional components, for example, for the purpose of stably maintaining the pesticide active ingredient in the pesticide formulation of the present invention and/or for the purpose of improving the granulation property during granulation, etc., A surfactant, an auxiliary agent, etc. can be contained as needed.

In the present invention, pesticide components other than flonicamid, such as fungicides, insecticides, acaricides, nematocides, antiviral agents, attractants, herbicides, plant growth regulators, etc. When they are used in combination or used in combination, more excellent effects may be exhibited in this case. For example, the range of application, the timing of chemical treatment, the control activity, etc. can be improved in a preferred direction. In addition, flonicamid and active ingredient compounds of other pesticides may be separately prepared and mixed at the time of spraying, or both may be prepared and used together. For example, when preparing the above-mentioned composition, flonicamid and pesticide components other than flonicamid may be formulated together. The present invention also includes the case where the active ingredients are mixed and administered in this way.

Examples of active ingredient compounds of insecticides, acaricides, nematocides, or soil insecticides among the above-mentioned other pesticides, that is, insecticidal compounds (common names; including part of the application, or test codes) include, for example, profenofos, dichlorvos, fenamiphos, fenitrothion, EPN, diazinon, chlorpyrifos, chlorpyrifos-methyl, Acephate, prothiofos, fosthiazate, cadusafos, dislufoton, isoxathion, isofenphos, ethyl Ethion, etrimfos, quinalphos, dimethylvinphos, dimethoate, sulprofos, thiometon , vamidothion, pyraclofos, pyridaphenthion, pirimiphos-methyl, propaphos, phosalone, and Formothion, malathion, tetrachlovinphos, chlorfenvinphos, cyanophos, trichlorfon, methidathion, rice abundance Phenthoate, ESP, azinphos-methyl, fenthion, heptenophos, methoxychlor, paration, phosphocarb , demeton-S-methyl, monocrotophos, methamidophos, imicyafos, parathion-methyl, terbuthion Organophosphate compounds such as terbufos, phospamidon, phosmet, phorate, phoxim, and triazophos;

Carbaryl, propoxur, aldicarb, carbofuran, thiodicarb, methomyl, oxamyl, ethylsulfur Ethiofencarb, pirimicarb, fenobucarb, carbosulfan, benfuracarb, bendiocarb, furathiocab ), carbamate compounds such as isoprocarb, metolcarb, xylylcarb, XMC, and fenothiocarb;

Cartap, thiocyclam, bensultap, thiosultap-sodium, monosultap, bisultap, hydrogen oxalate Nereistin derivatives such as thiocyclam hydrogen oxalate);

Organochlorine compounds such as dicofol, tetradifon, endosulfan, dienochlor, and dieldrin;

Organometallic compounds such as fenbutatin oxide and cyhexatin;

Fenvalerate, permethrin, cypermethrin, deltamethrin, cyhalothrin, tefluthrin, ethofenprox ), flufenprox, cyfluthrin, fenpropathrin, flucythrinate, fluvalinate, cycloprothrin , lambda-cyhalothrin, pyrethrins, esfenvalerate, tetramethrin, resmethrin, pyrethroid ethers Protrifenbute, bifenthrin, zeta-cypermethrin, acrinathrin, alpha-cypermethrin, allethrin, gamma- Gamma-cyhalothrin, theta-cypermethrin, tau-fluvalinate, tralomethrin, profluthrin, beta - beta-cypermethrin, beta-cyfluthrin, metofluthrin, phenothrin, flumethrin, deltamethrin ( Pyrethroid compounds such as decamethrin);

diflubenzuron, chlorfluazuron, teflubenzuron, flufenoxuron, triflumuron, hexaflumuron, lufenuron Benzoyl urea compounds such as novaluron, noviflumuron, bistrifluron, and fluazuron;

Juvenile hormone-like compounds such as methoprene, pyriproxyfen, fenoxycarb, and diofenolan;

Pyridazinone compounds such as pyridaben;

Fenpyroximate, fipronil, tebufenpyrad, ethiprole, tolfenpyrad, acetoprole, pyrafluprole , pyrazole compounds such as pyriprole;

imidacloprid, nitenpyram, acetamiprid, thiacloprid, thiamethoxam, clothianidin, nidinotefuran, difuran Neonicotinoids such as dinotefuran and nithiazine;

Tebufenozide, methoxyfenozide, chromafenozide, halofenozide and other hydrazine compounds;

Tetronic acid compounds such as spirodiclofen;

Strobilurin-based compounds such as fluacrypyrin;

Pyrimidine-based compounds such as flufenerim;

Dinitro compounds, organosulfur compounds, urea compounds, triazine compounds, hydrazone compounds, and other compounds such as buprofezin, hexythiazox, amitraz, Chlordimeform, silafluofen, triazamate, pymetrozine, pyrimidifen, chlorfenapyr, indoxacarb, Acequinocyl, etoxazole, cyromazine, 1,3-dichloropropene, diafenthiuron, benclothiaz, difenazine bifenazate, spiromesifen, spirotetramat, propargite, clofentezine, metaflumizone, 3-bromo-N-( 2-Bromo-4-chloro-6-(1-cyclopropylethylcarbamoyl)phenyl)-1-(3-chloropyridin-2-yl)-1H-pyrazole-5-carboxamide, 3 -Bromo-N-(4-chloro-2-(1-cyclopropylethylcarbamoyl)-6-methylphenyl)-1-(3-chloropyridin-2-yl)-1H-pyrazole -5-formamide, 3-bromo-N-(2-bromo-4-chloro-6-(cyclopropylmethylcarbamoyl)phenyl)-1-(3-chloropyridin-2-yl)- 1H-pyrazole-5-carboxamide, flubendiamide, cyflumetofen, chlorantraniliprole, cyantraniliprole, cyenopyrafen, Pyrifluquinazone, fenazaquin, amidoflumet, chlorobenzoate, sulfluramid, fluorine Hydramethylnon, metaldehyde, HGW-86, AKD‐1022, ryanodine, pyridalyl, verbutin, thiazolyl cinnamonitrile ( thiazolylcinnanonitrole); etc. In addition, it can also be used with Bacillus thuringienses aizawai, Bacillus thuringienses kurstaki, Bacillus thuringienses israelensis, Bacillus thuringienses japonensis, Bacillus thuringienses tenebrionis, Bacillus thuringienses produced crystalline protein toxins, insect pathogenic virus agents, entomopathogenic filamentous bacterial agents, nematode pathogenic filamentous bacterial agents, etc. Such microbial pesticides, avermectin, emamectin benzoate, milbemectin, milbemycin, spinosad , ivermectin, lepimectin, DE-175, abamectin, emamectin, spinetoram such antibiotics and semi Synthetic antibiotics; natural products such as azadirachtin and rotenone; repellents such as DEET; etc. are used in combination.

Examples of active ingredient compounds of fungicides among the above-mentioned other pesticides, that is, fungicidal compounds (common names; including part of the application, or the Japan Plant Protection Association test code), include, for example, mepanipyrim, pyrimethanil Anilinopyrimidine compounds such as (pyrimethanil), cyprodinil, and ferimzone;

5-Chloro-7-(4-methylpiperidin-1-yl)-6-(2,4,6-trifluorophenyl)[1,2,4]triazolo[1,5-a] Triazolopyrimidine compounds such as pyrimidine;

Pyridinamine compounds such as fluazinam;

Triadimefon, bitertanol, triflumizole, etaconazole, propiconazole, penconazole, flusilazole , myclobutanil, cyproconazole, tebuconazole, hexaconazole, furconazole‐cis, prochloraz, metconazole ( metconazole), epoxiconazole, tetraconazole, oxpoconazole fumarate, sipconazole, prothioconazole, triadimenol, Flutriafol, difenoconazole, fluquinconazole, fenbuconazole, bromuconazole, diniconazole, tricyclazole , azole compounds such as probenazole, simeconazole, pefurazoate, ipconazole, and imibenconazole;

Quinoxaline compounds such as quinomethionate;

Maneb, zineb, mancozeb, polycarbamate, metiram, propineb, thiram dithiocarbamate compounds;

Organochlorine compounds such as fthalide, chlorothalonil, and quintozene;

Imidazole compounds such as benomyl, thiophanate-methyl, carbendazim, thiabendazole, and fuberiazole;

cyanoacetamide compounds such as cymoxanil;

Metalaxyl, metalaxyl-M (metalaxyl-M), mefenoxam, oxadixyl, ofurace, benalaxyl, benalaxyl- M (benalaxyl-M, also known as kiralaxyl, chiralaxyl), furalaxyl, cyprofuram, carboxin, oxycarboxin, thifluzamide , anilide-based compounds such as boscalid, bixafen, isotianil, tiadinil, and sedaxane;

Sulfonamide compounds such as dichlofluanid;

Copper-based compounds such as cupric hydroxide and organic copper (8-oxine copper);

Alien like hymexazol Azole compounds;

Aluminum triethylphosphonate (fosetyl‐Al), tolclofos‐Methyl, S-benzyl-O,O-diisopropyl phosphorothioate, O-ethyl-S,S-di Organophosphorus compounds such as phenyl phosphorodithioate, aluminum triethylphosphonate, edifenphos, and iprobenfos;

Phthalimide-based compounds such as captan, captafol, and folpet;

Dicarboximide compounds such as procymidone, iprodione, and vinclozolin;

N-benzanilide compounds such as flutolanil and mepronil;

Penthiopyrad, 3-(difluoromethyl)-1-methyl-N-[(1RS,4SR,9RS)-1,2,3,4-tetrahydro-9-isopropyl- 1,4-methylenenaphthalen-5-yl]pyrazole-4-carboxamide and 3-(difluoromethyl)-1-methyl-N-[(1RS,4SR,9SR)-1,2, 3,4-Tetrahydro-9-isopropyl-1,4-methylenenaphthalen-5-yl]pyrazole-4-carboxamide mixture (isopyrazam), silthiocarb Amide compounds such as (silthiopham), fenoxanil, and furametpyr;

Benzamide compounds such as fluopyram and zoxamide;

Piperazine compounds such as triforine;

Pyridine compounds such as flonicamid and pyrifenox;

Methanol-based compounds such as fenarimol;

Piperidine compounds such as fenpropidin;

Morpholine compounds such as fenpropimorph and tridemorph;

Organotin compounds such as fentin hydroxide and fentin acetate;

Urea compounds such as pencycuron;

Cinnamic acid-based compounds such as dimethomorph and flumorph;

Phenyl carbamate compounds such as diethofencarb;

Cyanopyrrole compounds such as fludioxonil and fenpiclonil;

Azoxystrobin, kresoxim-methyl, metominostrobin, trifloxystrobin, picoxystrobin, oryzastrobin, kresoxim strobilurin compounds such as (dimoxystrobin), pyraclostrobin, and fluoxastrobin;

like famoxadone Oxazolidinone compounds;

Thiazole carboxamide compounds such as ethaboxam;

Valinamide-based compounds such as iprovalicarb and benthiavalicarb-isopropyl;

Acyl amino acid compounds such as methyl N-(isopropoxycarbonyl)-L-valyl-(3RS)-3-(4-chlorophenyl)-β-alanine ester (valiphenalate);

imidazolinone compounds such as fenamidone;

Hydroxyanilide compounds such as fenhexamid;

Benzenesulfonamide compounds such as flusulfamide;

Oxime ether compounds such as cyflufenamid;

Anthraquinone compounds;

Crotonic acid compounds;

Antibiotics such as validamycin, kasugamycin, and polyoxins;

Guanidine compounds such as iminoctadine and dodine;

Quinoline compounds such as 6-tert-butyl-8-fluoro-2,3-dimethylquinolin-4-yl acetate (tebufloquin);

(Z)-2-(2-fluoro-5-(trifluoromethyl)phenylthio)-2-(3-(2-methoxyphenyl)thiazolidin-2-ylidene)acetonitrile Thiazolidine compounds such as flutianil;

Other compounds include pyribencarb, isoprothiolane, pyroquilon, diclomezine, quinoxyfen, and propamocarb hydrochloride (propamocarb hydrochloride), chloropicrin, dazomet, metam‐sodium, nicobifen, metrafenone, UBF-307, diclofenac Amine (diclocymet), propoxyquinoline (proquinazid), amisulbrom (alias Amibrodol (amibromdole)), 3-(2,3,4-trimethoxy-6-methylbenzoyl)-5-chloro -2-methoxy-4-methylpyridine, 4-(2,3,4-trimethoxy-6-methylbenzoyl)-2,5-dichloro-3-trifluoromethylpyridine, Pyriofenone, mandipropamid, fluopicolide, carpropamid, meptyldinocap, N-[(3',4'-dichloro -1,1-Dimethyl)phenacyl]-3-trifluoromethyl-2-pyridinecarboxamide, N-[(3',4'-dichloro-1,1-dimethyl) Phenoylmethyl]-3-methyl-2-thiophenecarboxamide, N-[(3',4'-dichloro-1,1-dimethyl)benzoyl]-1-methyl -3-trifluoromethyl-4-pyrazolecarboxamide, N-[[2'-methyl-4'-(2-propyloxy)-1,1-dimethyl]phenacyl ]-3-trifluoromethyl-2-pyridinecarboxamide, N-[[2'-methyl-4'-(2-propyloxy)-1,1-dimethyl]phenacyl ]-3-methyl-2-thiophenecarboxamide, N-[[2'-methyl-4'-(2-propyloxy)-1,1-dimethyl]phenacyl]- 1-methyl-3-trifluoromethyl-4-pyrazolecarboxamide, N-[[4'-(2-propyloxy)-1,1-dimethyl]benzoyl]- 3-Trifluoromethyl-2-pyridinecarboxamide, N-[[4'-(2-propyloxy)-1,1-dimethyl]benzoyl]-3-methyl-2 - Thiophene carboxamide, N-[[4'-(2-propyloxy)-1,1-dimethyl]benzoyl]-1-methyl-3-trifluoromethyl-4- Pyrazolecarboxamide, N-[[2'-methyl-4'-(2-pentyloxy)-1,1-dimethyl]phenacylmethyl]-3-trifluoromethyl-2 -Pyridinecarboxamide, N-[[4'-(2-pentyloxy)-1,1-dimethyl]benzoyl]-3-trifluoromethyl-2-pyridine Carboxamide, ferimzone, spiroxamine, S-2188 (fenpyrazamine), S-2200, ZF-9646, BCF-051, BCM-061, BCM -062 etc.

In the present invention, the treatment amount of flonicamid varies depending on conditions such as target crops, treatment methods, formulation forms, etc., so it cannot be generally specified, but it is usually 0.1 to 24,000 g/ha. In the case of spraying treatment, the treatment amount of flonicamid is generally 0.1 to 10,000 g/ha, preferably 1 to 1,000 g/ha, more preferably 10 to 500 g/ha, and still more preferably 25 to 500 g/ha . In the case of water surface treatment, the treatment amount of flonicamid is usually 5 to 1,000 g/ha, preferably 10 to 1,000 g/ha, more preferably 50 to 600 g/ha. In the case of treatment in a nursery box, the treatment amount of flonicamid is usually 0.001 to 100 g/box, preferably 0.01 to 10 g/box, more preferably 0.1 to 5 g/box.

The effective concentration of flonicamid is 0.05 to 7,000 ppm, preferably 0.5 to 700 ppm, more preferably 0.5 to 350 ppm, even more preferably 0.8 to 200 ppm.

Next, some preferred embodiments of the present invention will be illustrated, but the present invention should not be construed as being limited by them.

(1) An agent for disrupting mating behavior of rice parasitic sap-sucking pests, which contains flonicamid as an active ingredient.

(2) The mating behavior disruptor according to (1), wherein the pest is at least one selected from planthoppers and leafhoppers.

(3) The mating behavior disrupting agent according to (1), wherein the pest is planthopper.

(4) A method for controlling rice parasitic sap-sucking pests, comprising treating with a mating behavior disruptor of rice parasitic sap-sucking pests containing flonicamid as an active ingredient to control the pests.

(5) A method for interfering with the mating behavior of rice parasitic sap-sucking pests, comprising treating with a mating behavior disruptor of rice parasitic sap-sucking pests containing flonicamid as an active ingredient to interfere with the mating behavior of the pests.

(6) The method according to (5), which also suppresses the number of individuals of the next generation of the pest.

(7) The method according to (5), which also suppresses the number of individuals of the next generation of the pest and protects rice from damage by the pest.

(8) The method according to (5), wherein the active ingredient amount of flonicamid is 0.1 to 24,000 g/ha.

(9) The method according to (5), wherein the treatment is soil treatment.

(10) According to the method described in (5), the mating behavior disruptor is used for treatment in a paddy field.

(11) According to the method described in (5), the mating behavior disruptor is used for treatment in a seedling cultivation box.

(12) According to the method described in (5), flonicamid is sprayed in the paddy field at a treatment rate of 0.1 to 10,000 g/ha to control the pest.

(13) According to the method described in (5), the pest is controlled by performing water surface treatment with flonicamid at a treatment rate of 5 to 1,000 g/ha in a paddy field.

(14) According to the method described in (5), the pest is controlled by treating with flonicamid at a treatment rate of 0.001 to 100 g/box in the seedling cultivation box.

(15) A pest control composition used in the method described in (11), comprising flonicamid and a poorly water-soluble resin.

(16) The pest control composition according to (15), wherein flonicamid and a poorly water-soluble resin form a matrix in the formulation.

(17) The composition according to (15) to (16), wherein the poorly water-soluble resin is an ethylene/acrylic acid copolymer.

(18) The composition according to (15) to (17), which further contains a humectant.

(19) The composition according to (15) to (17), wherein flonicamid has an average particle diameter of 1 to 100 μm.

(20) The composition according to (18), wherein flonicamid has an average particle diameter of 1 to 100 μm.

(21) The pest control composition according to (15) to (17) or (19), which is a granule.

(22) The pest control composition according to (18) or (20), which is a granule.

(23) The method for producing the composition described in (21), comprising the steps of mixing flonicamid and the ethylene/acrylic acid copolymer, kneading, granulating, and drying.

(24) The method for producing the composition described in (22), comprising the steps of mixing, kneading, granulating, and drying flonicamid, ethylene/acrylic acid copolymer, and a wetting agent.

(25) A pest control composition comprising flonicamid and a poorly water-soluble resin.

(26) The pest control composition according to (25), wherein flonicamid and a poorly water-soluble resin form a matrix in the formulation.

(27) The composition described in (25) to (26), wherein the poorly water-soluble resin is an ethylene/acrylic acid copolymer.

(28) The pest control composition according to (25) to (27), which further contains a wetting agent.

(29) The composition according to (25) to (27), wherein flonicamid has an average particle diameter of 1 to 100 μm.

(30) The composition according to (28), wherein flonicamid has an average particle diameter of 1 to 100 μm.

(31) The pest control composition according to (25) to (27) or (29), which is a granule.

(32) The pest control composition according to (28) or (30), which is a granule.

(33) The method for producing the composition according to (31), comprising the steps of mixing, kneading, and granulating flonicamid and the ethylene/acrylic acid copolymer, followed by drying.

(34) The method for producing the composition according to (32), comprising the steps of mixing, kneading, and granulating flonicamid and the ethylene/acrylic acid copolymer, followed by drying.

Example

Hereinafter, although the Example of this invention is described, this invention is not interpreted as being limited by them.

Preparation Example 1

After mixing 1 part by weight of flonicamid, 20 parts by weight of bentonite (manufactured by Fengshun Industry Co., Ltd.), and 76 parts by weight of powdered calcium carbonate (manufactured by Shimizu Industry Co., Ltd.), add Tokisanon GR-31A (polycarboxylate aqueous solution, Sanyo Kasei Kogyo Co., Ltd.) 3 parts by weight, Sanekis C (calcium lignosulfonate aqueous solution, manufactured by Nippon Paper Chemical Co., Ltd.) 3 parts by weight and the necessary amount of water are kneaded, and after being granulated by an extrusion granulator, Dried and granulated to obtain pesticide granules.

Preparation example 2

After mixing 2 parts by weight of flonicamid, 92.3 parts by weight of powdered calcium carbonate, and 3 parts by weight of polyoxyethylene styryl phenyl ether sulfate (Solpole 5096, manufactured by Toho Chemical Industry Co., Ltd.), add 27w/w 10 parts by weight of an aqueous emulsion of ethylene/acrylic acid copolymer (trade name: HYTEC S-3111 (manufactured by Toho Chemical Industry Co., Ltd.)), add the necessary amount of water, knead, granulate through an extruder, and dry , Whole grains, so as to obtain pesticide granules.

Preparation example 3

After mixing 2 parts by weight of flonicamid, 92.3 parts by weight of clay, and 3 parts by weight of polyoxyethylene styryl phenyl ether sulfate (Solpole 5096, manufactured by Toho Chemical Industry Co., Ltd.), add 27w/w% Aqueous emulsion of ethylene/acrylic acid copolymer (trade name: HYTEC S-3121 (manufactured by Toho Chemical Industry Co., Ltd.)) 10 parts by weight, add necessary amount of water, knead, granulate by extruder, dry, and prepare Granules to obtain pesticide granules.

Test Example 1 The control effect on brown planthopper by flonicamid nursery box treatment

In the root of 1.2cm * 1.2cm potted seedlings (3/strain), with the ratio of 1.5mg ai/strain, the granule prepared according to preparation example 1 is processed in the seedling box. One day after flonicamid treatment, the rice was pulled out from the pot together with the soil, and one plant was transplanted in each pot, and the water depth was kept at 3 cm. Two small greenhouses were prepared, and 24 pots with flonicamid treatment and 24 pots without treatment were placed in each small greenhouse. 100 adults of brown planthopper ( Nilaparvata lugens ) were placed in each greenhouse 10 days, 17 days and 30 days after transplantation. After releasing the insects, the number of adults and the number of newly born larvae per 24 rice plants parasitic on rice were measured at regular intervals. The results are shown in Table 1 and FIG. 1 . In addition, in Figure 1, ○-○ (circle symbol) represents the number of adult larvae (only) in the area treated with flonicamid, and △-△ (triangle symbol) represents the number of adult larvae (only) in the area without treatment .

[Table 1]

Table 1 The number of adult and larval parasites of brown planthopper/24 strains (only)

In Table 1 and Fig. 1 , according to the transition of the number of adults and larvae without treatment, the peak of the first generation was on the 29th day after rice transplantation, and the peak of the second generation was on the 57th day after rice transplantation. It can be speculated that the decrease in the number of adults and larvae on the 39th day after rice transplantation was due to the fact that the eggs laid by the first generation adults were in a state before hatching. In addition, it is assumed that three adult insect stockings are a scene in which brown planthoppers fly from other areas in an actual paddy field. Under these conditions, the peak of the first generation was not observed in the flonicamid-treated area, and the number of adult larvae of the second generation was also significantly suppressed.

Test Example 2: Interfering effect on mating behavior of brown planthopper

Ten grains of rice were sown in 40 mm×40 mm absorbent cotton, and rice seedlings having a height of about 5 cm were prepared. The rice seedlings were dipped in an aqueous solution containing 200 ppm of the active ingredient flonicamid, air-dried, and put into a glass vial (inner diameter 40 mm x height 75 mm; capacity 50 ml). From the time of old larvae, one reared unmated adult brown planthopper ( Nilaparvata lugens ) was reared with chemical-free rice seedlings. One at a time was fed with dipped rice for 24 hours from the 6th day after eclosion. On the 7th day after eclosion, one male and one female were kept together on the dipping rice, and 24 hours later, the male was removed, and the female was allowed to subsequently lay eggs until the 14th day after eclosion, which was removed. Regarding the number of newly born larvae of the next generation, the rice seedlings treated with dipping (flunicamid treatment area) and the rice seedlings not treated with the chemical agent (untreated area) were compared to measure the number of larvae of the next generation. In addition, when each male and female were kept together, they were observed for 2 hours to confirm the presence or absence of mating behavior.

Also, in order to confirm that no next-generation larvae occurred in the non-mating state, non-mating females were reared alone in a non-mating area, and the number of next-generation larvae (unmating area) was measured. The results are shown in Table 2.

[Table 2]

※a: No mating behavior was observed.

※b: Mating ends within 90 minutes.

※c: No mating.

Test Example 3: Disruption of mating behavior in the brown planthopper system with reduced susceptibility to neonicotinoid insecticides

The brown planthopper of Test Example 2 was replaced by the brown planthopper whose sensitivity to the common name imidacloprid as a representative neonicotinoid insecticide was reduced, and the test was carried out in the same way, and the flonicamid treatment area was compared with the non-treatment area to determine The number of occurrences of the next generation of larvae. The results are shown in Table 3.

[table 3]

※a: No mating behavior was observed.

※b: Mating ends within 10 minutes.

Test Example 4: Interfering effect on mating behavior of white-backed planthopper

The brown planthopper in Test Example 2 was replaced by white-backed planthopper ( Sogatella furcifera ), and the test was carried out in the same manner, comparing the area treated with flonicamid and the area without treatment, and the number of larvae of the next generation was determined. The results are shown in Table 4.

[Table 4]

※a: No mating behavior was observed.

※b: Mating ends within 30 minutes.

Test Example 5: Interfering effect on the mating behavior of SBPH

The brown planthopper in Test Example 2 was replaced by the brown planthopper ( Laodelphax striatella ), and the experiment was carried out in the same manner, comparing the area treated with flonicamid and the area without treatment, and the number of larvae of the next generation was determined. The results are shown in Table 5.

[table 5]

※a: No mating behavior was observed.

※b: Mating ends within 30 minutes.

From the results of Test Examples 2 to 5, it was found that in the present invention, interference with mating behavior occurred in various planthoppers, and the number of individuals of the next generation was suppressed. In addition, it was also found that the present invention exhibits an excellent effect on brown planthoppers whose susceptibility to imidacloprid, which has been conventionally used as a mainstream agent for controlling planthoppers, has been reduced.

Test Example 6: Interfering effect on mating behavior of brown planthopper

The rice seedlings were tested according to Test Example 2 except that the aqueous solution containing 50, 12.5, 3.1 and 0.8 ppm of the active ingredient flonicamid was treated. The flonicamid-treated area was compared with the non-treated area to determine the number of occurrences of the next generation of larvae, and the results are shown in Table 6.

[Table 6]

※a: No mating behavior was observed.

※b: Mating ends within 30 minutes.

Test Example 7: Interfering effect on mating behavior of white-backed planthopper

The test was carried out in accordance with Test Example 4 except that the rice seedlings were treated with aqueous solutions containing 50, 12.5, and 3.1 ppm of the active ingredient flonicamid. The flonicamid-treated area was compared with the non-treated area to determine the number of occurrences of the next generation of larvae, and the results are shown in Table 7.

[Table 7]

※a: No mating behavior was observed.

※b: Mating ends within 30 minutes.

Test Example 8: Interfering effect on mating behavior of SBPH

The test was carried out in accordance with Test Example 5 except that the rice seedlings were treated with aqueous solutions containing 50, 12.5, and 3.1 ppm of the active ingredient flonicamid. The flonicamid-treated area was compared with the non-treated area to determine the number of occurrences of the next generation of larvae, and the results are shown in Table 8.

[Table 8]

※a: No mating behavior was observed.

※b: Mating ends within 30 minutes.

Test Example 9: Disruption of mating behavior in the brown planthopper system with reduced susceptibility to neonicotinoid insecticides

The test was carried out in accordance with Test Example 3 except that the rice seedlings were treated with an aqueous solution containing 0.8 ppm of the active ingredient flonicamid. The flonicamid-treated area and the non-treated area were compared to measure the occurrence number of next-generation larvae, and the results are shown in Table 9.

[Table 9]

※a: No mating behavior was observed.

※b: Mating ends within 30 minutes.

From the results of Test Examples 6 to 9, it can be seen that in the present invention, even when various planthoppers were treated with active ingredients at low concentrations such as 3.1 ppm, mating behavior was disturbed and the number of individuals of the next generation was suppressed. In addition, it was found that the present invention exhibits an excellent effect even when treated with an active ingredient at a low concentration such as 3.1 ppm, compared with brown planthoppers whose susceptibility to imidacloprid has been reduced, which is conventionally used as a mainstream agent for controlling planthoppers.

Test Example 10: Interfering effect on the mating behavior of the black-tailed leafhopper

The brown planthopper of test example 2 was replaced by black-tailed leafhopper ( Nephotettix cincticeps ), and the test was carried out in the same way. The flonicamid treatment area and no treatment area were treated with the aqueous solution containing the active ingredient flonicamid 200 and 50ppm to the rice seedlings. Areas were compared to determine the number of occurrences of the next generation of larvae. The results are shown in Table 10.

[Table 10]

※a: Mating behavior could not be confirmed during the 2-hour observation.

From the results of Test Example 10, it was found that in the present invention, the number of individuals of the next generation was suppressed for the black-tailed leafhopper.

Test Example 11 Control effect on brown planthopper by flonicamid nursery box treatment

In a 30cm×60cm nursery box, the pest control composition prepared according to the above formulation example 2 was treated in a nursery box at a ratio of 6, 12, 24 and 36 g ai/box. Set no treatment area and dinotefuran granule (trade name: スタールイヤル box granule, manufactured by Mitsui Chemicals Aguro Co., Ltd.) treatment area (24g ai/box) and imidacloprid granule (trade name: アドマイヤイー box granule, Bayercrop Syences Company system) processing area (24g ai/box). Treat with flonicamid in the treatment on the day of transplantation, and transplant to the field of 32m ² in zone 1 by rice transplanter. 36, 43, 51, 57 and 65 days after transplantation, 500 adults of brown planthopper and 12000 eggs of brown planthopper were placed in ^100m2 of the field. The number of adults and the number of newly born larvae per 24 rice plants parasitizing rice were measured at 78, 89 and 96 days after transplantation. The results are shown in Table 11. In addition, as a reference, in FIG. 2, the situation of the flonicamid-treated area of 24g ai/10a is shown as a representative in the figure about the flonicamid-treated area. ●-● (black circle symbols) indicate the number of adult larvae (only) in the area treated with 24g ai/10a flonicamid, □-□ (white rectangle symbols) indicate the number of adult larvae in the area treated with imidacloprid granules (only ), △-△ (white triangle symbol) indicates the number of adult larvae (only) in the area treated with dinotefuran granules, and ×-× (× symbol) indicates the number (only) of adult larvae in the area without treatment.

[Table 11]

The 5 times of releasing insects were carried out in the paddy field of the warm land in the southwest to match the period when the brown planthoppers flew from other areas. From the transition of the number of adult larvae without treatment, the 89th day after rice transplantation was the peak of the first generation (next generation). In the control agent Starkle box granule-treated area, although the density of parasitic larvae was suppressed 70 days after transplantation from the start of the investigation, it turned to increase thereafter. In the contrast agent アドマイイyaーbox granule treatment area, the density of parasitic larvae was also suppressed 70 days after the transplantation from the start of the investigation, but then turned into an increase, and the peak of the first generation (next generation) was observed on the 89th day after transplantation . In this situation, in the flonicamid-treated area, the peak of the first generation (next generation) was not observed, and the number of parasitic larvae was significantly suppressed by 89 days after transplantation. This result shows that the present invention is particularly useful in the case of control of rice parasitic sap-sucking pests that require suppression of an increase in the number of pest individuals for as long as possible after chemical treatment.

Test Example 12 Control effect on brown planthopper by flonicamid stem and leaf treatment

Transplant to a field of ^32m2 in Zone 1 by a rice transplanter. After 36, 43, 51, 57 and 65 days of transplantation, 500 adults of brown planthopper and 12000 eggs of brown planthopper were put into ^{100m2 of} field. 70 days after transplantation, flonicamid was applied to the stems and leaves at the heading stage with a spraying water volume of 150L/10a. Set up a non-treatment area, a pymetrozine wettable powder (trade name: Ches Water Conditioner, manufactured by Syngenta) and a dinotefuran water-soluble powder (trade name: Starkul granule water solvent, manufactured by Mitsui Chemicals Agro Corporation) processing area. . Immediately before the treatment, the number of adults and the number of newly born larvae per 24 rice plants parasitizing the rice were measured at 2, 8, 19, 26 and 33 days after the treatment. The results are shown in Table 12.

[Table 12]

The 5 times of releasing insects were carried out in the paddy field of the warm land in the southwestern part when brown planthoppers flew from other areas. According to the transition of the number of adult larvae without treatment, the 19th day of treatment was the peak of the first generation (next generation). The decrease in the number of adults and larvae on the 26th day of treatment can be speculated that the eggs laid by the first generation adults were in a state before hatching. In contrast agent pymetrozine wettable powder and dinotefuran water-soluble powder treatment areas showed high-density inhibitory effect. In this situation, in the flonicamid-treated area, the peak of the first generation (next generation) was not observed, and the number of parasitic larvae was suppressed at the same level as that of the control agent until 2 to 3 weeks after the treatment.

industry availability

The present invention can be used for the control of planthoppers which are sap-sucking pests considered as major pests in the field of rice cultivation.

In addition, all the contents of the specification, claims, drawings, and abstract of Japanese Patent Application No. 2010-170936 for which it applied on July 29, 2010 are referred here, and it takes in as an indication of the specification of this invention.

Claims (14)

1. flonicamid is as the application of the mating action agent interfering of the parasitic sap-sucking insect of rice.

2. application according to claim 1, this insect is plant hopper.

3. application according to claim 1, it also suppresses the individual number of future generation of this insect.

4. application according to claim 1, it also suppresses the individual number of future generation of this insect, and protection rice is not damaged by this insect.

5. application according to claim 1, processes taking the active ingredient amount of flonicamid as 0.1～24,000g/ hectare.

6. application according to claim 1, this is treated to soil treatment.

7. application according to claim 1 is processed with this mating action agent interfering in seedling growing box.

8. application according to claim 1, is used the Pesticidal composition that contains flonicamid and slightly water-soluble resin to process in seedling growing box.

9. application according to claim 8, slightly water-soluble resin is ethylene/acrylic acid copolymer.

10. application according to claim 8, also contains wetting agent in composition.

11. application according to claim 10, wetting agent is polyoxyethylene styryl phenyl ether sulphate.

12. application according to claim 8, the average grain diameter of the flonicamid in composition is 1～100 μ m.

13. application according to claim 8, composition is granula.

Application described in 14. claims 13, is characterized in that, the manufacture of composition have by flonicamid and ethylene/acrylic acid copolymer mix, mixing, granulation, and carry out dry operation.