TW201325455A - Method for preventing diseases in transplanted rice - Google Patents

Abstract

This invention provides a method for preventing disease and/or controlling animal pests in transplanted rice having long residual effect in rice paddies, wherein the amount of at least one agrochemical is extremely reduced compared with that of the conventional nursery-box treatment. A method for preventing disease in transplanted rice in rice paddies, characterized in that the composition comprising isotianil is adhered to rice seeds before they are sowed in nursery boxes.

Description

Method for preventing transplanting rice diseases

The present invention relates to a method for preventing diseases of transplanted rice and/or controlling pests of animals.

Insecticide treatment of rice seeds directly planted in rice fields is known. However, there is still no technology for pesticide application (Section III; common technique of pesticide application, seed disinfection) for the purpose of preventing diseases and/or controlling animal pests in transplanted rice. Publication: 1998, pp. 133 -139, edited by Pesticide Science Society of Japan, published by Japan Plant Protection Association).

Further, a disinfection method for a seed-infected disease is also described, in which the seed is treated with a seed disinfectant after being immersed in water or after germination, but the prevention of diseases or insect pests in the rice field is not described (Japanese Patent Application Laid-Open No. 9224424, Japanese Patent Application Publication No. 11028006, Japanese Patent Application Publication No. 11049612).

For the preventive treatment of diseases of transplanted rice and/or the control of animal pests, pesticides are sprayed on rice fields or nursery boxes. However, spraying pesticides on rice fields to prevent rice diseases and/or controlling animal pests after transplanting rice into rice fields has the problem that a large amount of pesticides or pesticides are not durable. Moreover, spraying pesticides in the nursery box can reduce the amount of pesticides compared to rice fields, but in some cases the amount of pesticide used is still large and the effect is not long enough.

Accordingly, it is an object of the present invention to improve these disadvantages and to provide a method for preventing disease and/or controlling animal pests by transplanting rice as compared to the amount used for conventional seedling box treatment to significantly reduce the amount of pesticides. It is simple and cheap, and has long-term residual effects in rice fields.

Through special studies to solve the above problems, the inventors of the present invention have found that by treating rice seeds with isotianil before seeding in a nursery box, the amount of pesticides may be significantly reduced compared to the conventional nursery box treatment. Make pesticides last longer. In the definition of the present invention, long-lasting utility means that disease prevention and/or control of animal pests is still observed 53 days or more after transplanting. Preferably, disease prevention and/or control of animal pests is still observed 67 days or more after transplanting. Optimally, disease prevention and/or control of animal pests is still observed 80 days or more after transplanting.

On the other hand, it has been found that in some cases, when the seeds are treated with other pesticides such as probenazol, tiadinil and the like, harmful effects are caused, and when the seeds are treated with reduced pesticides In order to reduce harmful effects, sufficient pesticide effects cannot be obtained after transplanting to rice fields. The present invention has been completed based on the above findings.

A first embodiment of the present invention is a method for preventing and/or controlling animal pests in transplanted rice in rice fields, wherein the composition containing the idini is attached to the rice seed before it is sown to the pre-boxing box, And wherein the composition comprising the idini is in the form of an active ingredient in the range of 30 to 180 g ai/ha, preferably 40 to 140 g ai/ha, more preferably 60 to 120 g ai/ha. use.

A more preferred embodiment is the method wherein the composition comprising the idini is in the range of 40 to 80 g ai/ha, preferably 50 to 70 g ai/ha, in an amount of the active ingredient. The way inside is used.

A second embodiment of the invention is the method, wherein the rice seed is the seed after soaking and before germination or the seed after germination.

A third embodiment of the invention is the method wherein the composition is an aqueous suspension composition comprising diatrines, a surfactant, an organic solvent, and a polymeric resin.

A fourth embodiment of the present invention is the method, wherein the composition comprises at least one selected from the group consisting of trifloxystrobin, penflufen, imidacloprid, and thiacloprid. ), additional pesticides from spinosad and ethiprole.

A fifth embodiment of the present invention is the method wherein disease prevention and/or control of animal pests is still observed 53 days or more after transplanting. According to a preferred embodiment, disease prevention and/or control of animal pests is still observed 67 days or more after transplanting. According to a more preferred embodiment, disease prevention and/or control of animal pests is still observed 80 days or more after transplanting.

A sixth embodiment of the invention is the method wherein the method is for preventing disease.

A seventh embodiment of the invention is the method wherein the disease is caused by a filamentous fungus and/or microorganism.

An eighth embodiment of the present invention is the method, wherein the disease is selected from the group consisting of rice fever [initiated by Pyricularia oryzae ], rice mayard or scab [from Helminthosporium (caused by Cochliobolus miyabeanus ), rice sheath blight [caused by Rhizoctonia solani ], rice leaf blight [caused by Xanthomonas oryzae pv. oryzae ] and rice Bacterial shell blight [triggered by Burkholderia glumae ].

A ninth embodiment of the invention is the method, wherein the method is for controlling animal pests.

A tenth embodiment of the present invention is the method, wherein the animal pest is selected from the group consisting of Lissorhoptrus oryzophilus , O ulema oryzae Kuwayama , Delphacidae , and Black-tailed spider mites . ( Nephotettix cincticeps ), Hydrellia griseola (rice leaf miner), Parnara guttata (rice worm), Naranga aenescens Moore , Cnaphalocrocis medinalis ), Chilo suppressalis and Stenchaetothrips biformis (rice horse ).

Compared with the pesticide used in the conventional nursery box treatment, as described above, the method of the present invention can reduce the occurrence of diseases and/or control animal pests for a long time with a small amount of pesticides transplanted rice in rice fields.

The invention is described in detail below in accordance with specific embodiments. The entire contents of the references mentioned in the specification of the present invention are included in the contents of the present specification.

The present invention relates to the prevention of diseases and/or the control of animal pests in transplanted rice in rice fields, characterized in that the composition containing the idini is attached to the rice seeds after being sown in the nursery box.

Dartini (3,4-dichloro-isothiazol-5-cyanoaniline, 3,4-dichloro-2'-cyano-1,2-thiazol-5-carboxanilide (IUPAC name), 3 4-Dichloro- N- (2-cyanophenyl)-5-isothiazolylcarbamide (CAS name) is a safener and similar agent that has been shown to be toxic, for example, as a herbicide (eg, WO 2004/103072, WO 2007/057112, WO 2009/124708) pesticides.

In the method of the present invention, the dynamide-containing composition may be in the form of various formulations, and, for example, a wettable powder, a granulated wettable powder, a water-soluble formulation, a liquid formulation, a coatable liquid, an aqueous suspension Liquid and microgel preparations can be listed as specific examples. Seed coating preparations can also be used. These formulations can be obtained by known methods, for example by mixing nitidin with a developing agent, ie a liquid or solid diluent or carrier, in some cases with an surfactant, ie an emulsifier. And / or a mixture of dispersants. In the case where water is used as the developing agent, for example, an organic solvent can be used as the auxiliary solvent. In the present invention, an aqueous suspension is preferred from the viewpoint of workability. As an aqueous suspension, in addition to idini, water, a surfactant, a liquid diluent (organic solvent) and a polymer resin, particularly an acrylic resin (including an alkyl acrylate and An aqueous suspension composition of / (or a polymer resin of alkyl methacrylate) is preferred. An antifoaming agent, a preservative, a thickener, a dispersing agent, an antifreezing agent, and the like may be added to the aqueous suspension composition, if necessary. The preferred enthalpy content in the aqueous suspension composition is from 1 to 50 parts by mass, particularly from 5 to 40 parts by mass. A preferred surfactant content is from 0.01 to 10 parts by mass, particularly from 0.1 to 5 parts by mass. The preferred diluent content is from 1 to 50 parts by mass, particularly from 5 to 30 parts by mass. The acrylic resin content is preferably from 0.1 to 20 parts by mass, particularly from 1 to 10 parts by mass. Additions to other additions A preferred total content of, for example, an antifoaming agent, a preservative and a thickener is from 0 to 10 parts by mass, particularly from 0 to 5 parts by mass. The aqueous suspension composition is preferably a particulate polymer resin as a polymer resin, and such finely ground resins and the like are particularly preferred.

As examples of the liquid diluent or carrier, there may be mentioned aromatic hydrocarbons (for example, xylene, toluene, alkylnaphthalene and the like), chlorinated aromatic or chlorinated aliphatic hydrocarbons (for example, chlorobenzene). , ethane chloride, chlorinated methane and the like), aliphatic hydrocarbons [such as cyclohexane and its analogs, paraffin (such as mineral oil fractions and the like)], alcohols (such as C _{2- 10} alcohols such as butanol, ethylene glycol, polyols such as propylene glycol and the like, and ethers, esters and the like thereof, and ketones (for example, acetone, methyl ethyl ketone, methyl isoform) Propyl ketone, cyclohexanone and its analogs), strong polar solvents (such as dimethylformamide, dimethylhydrazine and the like), water and the like.

As examples of solid diluents or carriers, there may be mentioned mashed natural minerals (for example, kaolin, clay, chalk, quartz, attapulgite, montmorillonite, diatomaceous earth and the like), mill Broken synthetic minerals (eg, bentonite, citric acid, alumina, citrate, cerium and the like) and analogs thereof. As examples of particulate formulation solid carriers, there may be mentioned crushed and mixed rocks (for example, calcite, marble, pumice, sepiolite, dolomite and the like, synthetic particles of inorganic and organic powders, fine Peel and similar organic matter (such as sawdust, coconut shell, ear of corn, tobacco rod and the like).

As examples of the surfactant, there may be mentioned nonionic and anionic surfactants [for example, polyoxyethylene fatty acid esters, polyoxyethylene fatty acid alcohols). Ethers (eg, alkyl aryl polyglycol ethers, alkyl sulfonates, alkyl sulfates, aryl sulfonates), tristyryl phenols and their ethoxylates], albumin hydrolysates, and the like Things.

As examples of the dispersing agent, there may be mentioned lignin-sulfite waste liquid, methyl cellulose and the like.

Adhesives may also be added to the formulation (powder formulation, granule formulation, emulsion), and as examples of such adhesives, there may be mentioned carboxymethylcellulose, natural and synthetic polymers (eg gum arabic) , polyvinyl alcohol, polyvinyl acetate and the like).

A toner may also be used, and as examples of the toner, inorganic pigments (e.g., iron oxide, titanium oxide, Prussian blue, and the like) and organic dyes such as alizarin dye, azo dye may be mentioned. Agents and metal phthalocyanine dyes, as well as trace elements such as metal salts of iron, manganese, boron, cobalt, molybdenum, zinc and the like.

Also, in addition to the idini, other insecticides such as seed disinfectants, insecticides and fungicides may be mixed if desired. The following combination agents can be listed as examples. These ingredients can be used singly or in combination.

1) Strobilurin fungicides selected from the group consisting of azoxystrobin, coumethoxystrobin, coumoxystrobin, dimoxystrobin, enestrobin ( Enoxastrobin), flufenoxystrobin, fluoxastrobin, kresoxim-methyl, metominostrobin, orysastrobin, picoxystrobin , pyraclostrobin, azole Pyramatetostrobin pyraoxystrobin and trifloxystrobin.

2) SDHI fungicides, selected from the group consisting of bixafen, boscalid, carboxin, diflumetorim, fenfuram, Fluopyram, fluolanil, fluxapyroxad, furametpyr, furmecyclox, isopyrazam, mepronil, oxidation Oxycarboxin, penflufen, penthiopyrad, sedaxane, thifluzamide, benzovindiflupyr, and benodanil.

3) New nicotine insecticides selected from the group consisting of acetamiprid, clothianidin, dinotefuran, imidacloprid, nitenpyram, and fruit. Peacloprid and thiamethoxam.

4) Ryanodine receptor modulator selected from the group consisting of Chloranthraniliprole, cyanthraniliprole and flubendiamide

5) Spinosyn insecticide, selected from spinosad and spinetoram

6) Phenylpyrazole insecticide, selected from ethiprole and fipronil

7) an imidazole fungicide selected from the group consisting of methyl-1-(n-butylamine-mercapto)-2-benzimidazole-amine formate [benomyl], 1,2-double (3-methoxycarbonyl-2-thioureido)benzene [thiophanate methyl] and pent-4-enyl N-fluorenyl-N-imidazol-1-ylcarbonyl-DL-high Alanine ester [pefurazoate].

8) a sterol demethylation inhibitor selected from the group consisting of (E)-4-chloro-α,α,α-trifluoro-N-(1-imidazol-1-yl-propoxyethylene)-o- -Toluidine [triflumizole], N-propyl-N-{2-(2,4,6-trichlorophenoxy)ethyl}imidazole-1-carboxamide [Polycola (prochloraz) )], 2-[(4-chlorophenyl)methyl]-5-(1-methylethyl)-1-(1H-1,2,4-triazol-1-ylmethyl)cyclopenta Alcohol [ipconazole]

9) A copper fungicide selected from the group consisting of copper hydroxide, basic copper chloride, copper gluconate, and copper nonylphenolsulfonate

10) Others, selected from the group consisting of bis(dimethylthiocarbamoxime) disulfide (TMTD), 5-ethyl-5,8-dihydro-8-side oxygen [1,3] dioxane Heteropentene[4,5-g]quinoline-7-carboxylic acid, 4-(2,2-difluoro-1,3-benzodioxol-4-yl)pyrrole-3- Formonitrile.

Preferably, it is a combination of the following pesticides: dysparin + trifluoro-sensitive; dysidine + pentopyramine; ididani + idadamine; idini + 赛果培; 迪尼尼+斯诺杀; Yardini + Yisip.

Although there are no special restrictions, but from the formulation and pesticides used for treatment From the viewpoint of the optimum amount of the insecticide, the rydenene is preferably contained in the range of 0.01 to 85% by weight, more preferably 0.1 to 80% by weight, based on the total amount of the insecticide formulation. , particularly preferably from 5 to 70% by weight.

There is no particular limitation on the method of attaching the composition containing the idini to the rice seed. As for the powder coating method, for example, there is a method in which rice seeds and pesticides are placed in a rotating drum and the rice seeds are uniformly coated with the pesticide by rotating the drum. As for the method of spraying the pesticide, for example, there is (1) a method in which a pesticide is directly sprayed on a rice seed dropped by a funnel or the like by using a suitable nozzle, and (2) a flow in which a vibration is conducted. a method of attaching a funnel to a nursery box, and spraying the pesticide directly onto the rice seed using a suitable nozzle when the rice seed bounces through the board, and (3) a drum in which a rice seed is passed through the funnel Between the top of the pre-box and the pesticide, the pesticide is sprayed on the rice through the drum. In the method of spraying a small amount of rice seeds on a rice seed, a method in which the rice seeds are placed in a rotary machine such as a mortar mixer and a predetermined dose of the pesticide is uniformly sprayed on the rice seeds with a suitable nozzle can be used. In addition, it is also possible to use the rice seed in a plastic bag or a suitable container which is two to three times the volume of the rice seed, and after adding the composition containing the idini, it is tightly closed (in the case of a plastic bag) It is a method in which the bag is filled with air and the bag mouth is closed, so that the whole bag is inflated, shaken and agitated, so that the pesticide is dispersed into the entire container or in the bag. In the case of spraying a large amount of rice seeds, a nozzle may be installed in the transportation means connected to the seeding machine of the seedling box to spray the pesticide, and if necessary, the rice seed and the pesticide may be mixed.

According to another method of treating rice seeds, the pre-germinated rice seeds are treated in a seed processor specially developed to treat pre-germinated rice species rather than dry rice seeds. The seed processor includes a drum having an inner diameter and a spiral cone having a slurry shaft and a helical ramp around the pulp shaft for mixing the seed with at least one pesticide. This spiral cone is incorporated into the drum and has a tolerance between the ramp and the drum of the spiral cone. In order to treat the pre-germinated seeds without treatment of the buds during the treatment (here: mixing process), it is necessary to determine the ratio of the inner diameter to the allowable amount. Preferably, the ratio of the allowable amount to the inner diameter of the cylinder is set to 1:10.

The seed processor further includes a bucket for containing at least one pesticide and an air compressor for pressurizing at least one pesticide sprayed onto the cylinder. At least one pesticide can be sprayed onto the cylinder via at least one nozzle (PCT/EP2012/058927, unpublished).

Preferably, the composition comprising sinidin is used in the range of 0.1 to 7 g ai/kg, in particular from 2 to 4 g ai, in terms of dry seed weight (weight of rice before soaking) /kg. Preferably, the weight of the rice seed after soaking or the weight of the rice seed after germination is in the range of 0.125 to 10 g a.i./kg, especially from 2.5 to 5 g a.i./kg. Preferably, the unit area of the rice seedlings after transplanting into the rice field is in the range of 30 to 180 g ai/ha, preferably in the range of 40 to 140 g ai/ha, more preferably 60 to 120 g ai. The range of /ha is more preferably in the range of 40 to 80 g ai/ha, most preferably in the range of 50 to 70 g ai/ha.

This amount is much lower than the amount of pesticide commonly applied to rice seeds.

In the case of rice seeds, it is preferred after soaking and before or after germination. of. The soaking method for the rice seed is also not limited, and preferably, for example, the cumulative temperature of ‧ days at 60 to 140 ° C (for example, 7 to 10 days at 13 to 14 ° C) allows the rice seed to absorb sufficient moisture. After the soaking treatment, after smearing, spraying or the like with the composition containing the idini, the rice seeds only need to be sown, germinated and cultivated in the nursery box. In the case of treating the rice seed after germination, for example, after soaking, the yttrium-containing composition is attached by smearing or spraying or the like at 20 to 40 ° C, preferably at 25 to 35 ° C for 10 to 30 hours. Preferably, the rice is expanded after 20 to 24 hours. After the treatment, the rice seeds are sown in a nursery box (for example, the size is 60 cm x 30 cm x 3 cm).

The method of cultivating the rice seedlings in the seedling box, cultivating the rice seedlings, covering the soil, transplanting the seedlings to the rice fields, and cultivating the rice after transplanting is not particularly limited, and a generally known method can be employed. For example, after the seeds are covered with soil, the seedling boxes are placed on the incubator and the seeds are allowed to germinate, and then the seedling boxes are moved to the nursery room and further cultivated. It is only necessary to transplant the cultivated seedlings into the rice fields using a tiller and the like. There is no restriction on the method of cultivating the rice after transplanting it into the rice field, and the rice can be cultivated according to a conventional method.

Although there is no particular limitation on the intended disease using the method of the present invention, the pesticide can be used against, for example, Plasmodiophoromycetes, Oomycetes, Zygomycetes, Ascomycetes. , Basidiomycetes, Deuteromycete s, and Bacteria. In particular, the disease derived from plant pathogens is selected from the group consisting of red deer disease ( Gibberella fujikuroi ), rice fever [ Pyricularia oryzae ], rice husk disease [ Cochliobolus miyabeanus ], rice sheath blight [triggered by Rhizoctonia solani ], rice bacterial Shell blight [triggered by Burkholderia glumae ], rice leaf blight [caused by Xanthomonas oryzae pv. oryzae ], rice bacterial blight [pod shell] Burkholderia glumae and bacterial ovals ( Acidovorax avenae ). In particular, it can effectively prevent diseases derived from filamentous fungi and/or microorganisms, such as rice. Fever, rice husk , scab, rice sheath blight, rice bacterial blight and bacterial blight.

In the definition of the invention, all rice pests can be controlled by the method of the invention. According to a preferred embodiment of the present invention, the controllable rice pest is selected from the group consisting of Lissorhoptrus oryzophilus , Oulema oryzae Kuwayama , Delphacidae , and Black-tailed spider mites ( N ephotettix cincticeps ), Hydrellia griseola (rice leaf miner), Parnara guttata (rice worm), Naranga aenescens Moore , Cnaphalocrocis medinalis ), Chilo suppressalis and Stenchaetothrips biformis (rice horse ).

The invention is illustrated on the basis of the following examples.

Example 1

The rice seed is treated as a seed by a method in which the germinated rice seed (expanded) The swelling is obtained by soaking the dried seeds, and containing 3 g of the active ingredient (denidini) per 1 kg of dry rice (the aqueous suspension composition is from the nitidine: about 20 parts by weight) , surfactant (tristyrylphenol): about 1 part by weight, acrylic resin: about 3 parts by weight, using propylene glycol as a diluent: 10 parts by weight, other additives (antifoaming agent, preservative, thickener and The analogs: a total of 5 parts by weight or less and the portion thereof is water) are placed in a plastic bag and thoroughly mixed. Next, 150 g of rice seeds (in terms of dry rice weight) were sown into each seedling box (60 cm x 30 cm x 3 cm) and immediately covered with soil. After the seeds were covered with soil, the nursery boxes were placed on a nursery rack and placed at 30 ° C for 3 days. After budding, the nursery box is moved to the nursery room and greened and cultivated according to conventional methods. The cultivated seedlings were mechanically transplanted (about 2.5 leaf stage), 20 boxes per 10a (that is, 20 boxes per 0.1 ha). Fertilization management and the like according to local practices.

Example 2

A rice sample was prepared according to the same conditions as in the examples, but using the same formulation having 6 g of active ingredient per 1 kg of dry rice.

Comparative example 1

A rice sample was prepared under the same conditions as in Example 1, but without the use of a nitidine formulation.

Comparative example 2

A rice sample was prepared by applying a formulation (containing 2% of the arsenic particle composition) on the growth chamber instead of seed treatment. That is, 2.2 L of the culture soil was placed in a nursery box and 1 L of water was irrigated onto the culture soil, and then 150 g of seeds (in terms of dry rice weight) were sown, and then uniformly distributed in each box. 50 g of this formulation was sprayed and the incubator was immediately covered with soil. After the seeds were covered with soil, the incubator was placed on a culture rack and placed thereon at 30 ° C for 3 days. After budding, the nursery box is moved to the nursery room and greened and cultivated according to conventional methods. The cultivated seedlings were mechanically transplanted (about 2.5 leaf stage), 20 boxes per 10a (that is, 20 boxes per 0.1 ha). Fertilization management and the like according to local practices.

Test of disease symptoms

The rice fever disease prevention in the rice samples of Example 1, Example 2, and Comparative Example 2 was detected using the rice sample of Comparative Example 1 as a standard after 53 days, 67 days, and 80 days of transplanting. The disease prevention value is calculated according to the following formula.

Disease prevention value = 100 - (incidence of disease in treated rice group / incidence of disease in untreated rice group) × 100

The incidence of disease:

0 leafless lesions

0.2 About 10 leaf spots in a rice plant (lower leaf type)

0.5 plant leaf area ratio is less than 1%

1 Planting leaf spot area ratio is 1 to 5%

2 Plant leaf area ratio is less than 5% and up to 10%

3 Plant leaf area ratio is higher than 10% and up to 20%

4 Plant leaf area ratio is higher than 20% and up to 40%

5 Plant leaf area ratio is higher than 40% and up to 80%

6 Planting leaf spot area ratio is higher than 80%

Based on the results of the disease prevention value test, the disease prevention utility against rice fever is judged to be 5: 0: The prevention value is 0 (equivalent to the treatment group), 1: the prevention value is 1 to 20, 2: the prevention value is 21 to 40, 3: the prevention value is 41 to 60, and 4: the prevention value is 61 to 80, 5: The prevention value is 81 to 100).

The results are shown in Table 1 (a.i.: active ingredient).

As shown by the results in Table 1, the disease prevention effect of seed treatment of rice seeds before seeding in the nursery box showed an extreme advantage, using only half the amount of the formulation (15 ml/kg seed) and having the effect of treatment in the sowing. which is It was 80 days after transplanting. As a result of this, it is considered that the method can utilize the pesticide more effectively than the conventional treatment method at the time of seeding, and the method produces a high degree of disease prevention effect.

Example 1-2

A rice sample was prepared according to the same conditions as in Example 1, except that the same formulation having 2 g of active ingredient per 1 kg of dry rice species was used.

Example 2-2

A rice sample was prepared according to the same conditions as in Example 1 and the same formulation having 3 g of active ingredient per 1 kg of dry rice species was also used.

Example 3-2

A rice sample was prepared according to the same conditions as in Example 1, except that the same formulation having 4 g of active ingredient per 1 kg of dry rice was used.

Example 4-2

A rice sample was prepared according to the same conditions as in Example 2 and the same formulation having 6 g of active ingredient per 1 kg of dry rice species was also used.

Comparative Examples 1-2 and 2-2

All conditions are the same as in Examples 1 and 2, respectively.

Table 2 disease symptom test

Example 1-2, Example 2-2, Example 3-2, Example 4-2, and Comparative Example The rice fever disease prevention in the rice sample of Example 2-2 was compared after 66 days and 80 days of transplanting. The rice samples of Example 1-2 (untreated rice group) were tested as a standard. The disease prevention value is calculated according to the same formula of the disease test.

[Table 2]

As shown by the results in Table 2, the disease prevention effect of seed treatment of rice seeds before seeding in the nursery box showed an extreme advantage, using only less than one-third of the formulation (10 ml/kg seed) with considerable sowing. The effect of the middle treatment, even after 80 days of transplanting. From this result, it is considered that the pesticide can be more effectively utilized by this method than the conventional treatment method at the time of seeding, and the method produces a high degree of disease prevention effect.

Claims (11)

A method for preventing diseases and/or controlling animal pests in transplanted rice in rice fields, wherein a composition comprising isotianil is attached thereto before the rice seeds are sown to the nursery box, and wherein the inclusion is eliminated The composition of Nie is used in the form of an active ingredient in the range of 30 to 180 g ai/ha. The method of claim 1, wherein the amount of the active ingredient is in the range of 40 to 140 g a.i./ha. The method of claim 1 or 2, wherein the rice seed is the rice seed after the soaking and before or after the germination. The method of any one of claims 1 to 3, wherein the composition is an aqueous suspension composition comprising diatrines, a surfactant, an organic solvent, and a polymer resin. The method of any one of claims 1 to 4, wherein the composition comprises at least one selected from the group consisting of trifloxystrobin, penflufen, imidacloprid, race Additional pesticides for thiacloprid, spinosad and ethiprole. The method of any one of claims 1 to 5, wherein disease prevention and/or control of animal pests is still observed 53 days or more after transplanting. The method of any one of claims 1 to 6, wherein the method is for preventing a disease. The method of any one of claims 1 to 7, wherein the disease is caused by a filamentous fungus and/or a microorganism. The method of any one of claims 1 to 8, wherein the disease is selected from the group consisting of rice fever [initiated by Pyricularia oryzae ], rice husk or scab [by the uterus department] Initiated by Cochliobolus miyabeanus ], rice sheath blight [initiated by Rhizoctonia solani ], rice leaf blight [by Xanthomonas oryzae pv. oryzae ] Initiation] and rice bacterial shell blight [triggered by Burkholderia glumae ]. The method of any one of claims 1 to 6, wherein the method is for controlling animal pests. The method of any one of claims 1 to 6 and 10, wherein the animal pest is selected from the group consisting of Lissorhoptrus oryzophilus , Oulema oryzae Kuwayama , and the genus Delphacidae ), Nephotettix cincticeps , Hydrellia griseola (rice leaf miner), Parnara guttata (rice worm), and Naranga aenescens Moore , Cnaphalocrocis medinalis , Chilo suppressalis , and Stenchaetothrips biformis (rice horse ).