JP2019104711A - Lawn disinfectant composition - Google Patents

Abstract

To provide a novel lawn disinfectant composition with a long duration of effect.SOLUTION: The lawn disinfectant composition comprises at least one compound A selected from compounds represented by formula (1), and at least one compound B selected from iminoctadine, chlorothalonil, fluazinam and pyribencarb. {X are each independently a halogeno group or C1-6 alkyl group; X' is H or a halogeno group; Rto Rare each independently a C1-6 alkyl group, C1-6 alkoxy group or hydroxy group; and Aand Aare each independently N or C.}SELECTED DRAWING: None

Description

  The present invention relates to a lawn fungicide composition having a high residual effect, that is, a long duration of effect.

  Various drugs are known for controlling diseases of lawns. The active ingredient substance contained in the sprayed turf medicine is reduced due to decomposition or the like, so that the effect on disease bacteria etc. will decrease over time. Lawn medicines with high residual effect, ie long duration of effect, can maintain the control effect of disease bacteria etc. even if the application rate is lower than the low residual grass chemicals, if the interval between sprays is the same. If the application rate is the same, the effect of controlling the disease bacteria can be maintained even as a long application interval as compared with the low residual effect turf medicine, and therefore the cost and labor of turf management can be reduced.

  Patent Document 1 discloses at least one compound selected from the group consisting of a compound represented by the formula (A), a compound represented by the formula (B), and salts thereof, and oxidative phosphorylation of fluazinam or the like. Disclosed is an agricultural / horticultural germicidal composition containing at least one compound selected from the group consisting of uncoupling agents, guanidine fungicides such as iminoctazine, QoI agents such as pyribencarb and the like. Although turf is exemplified as a target plant of this fungicide composition for agricultural and horticultural purposes, as a specific example of the bacteria disinfected by applying the biocidal agent composition for agricultural and horticultural organisms, a gray mold fungus on a potato glucose medium is exemplified. (Botrytis cinerea Persoon (filamentous fungi)), cucumber gray mold fungus, and cucumber powdery mildew are only shown.

｛式（1）中、Ｘはそれぞれ独立してハロゲノ基またはＣ１〜６アルキル基を示す。ｎはＸの個数を示し且つ０〜６のいずれかの整数である。Ｘ’はハロゲノ基を示す。Ｒ¹、Ｒ²及びＲ³はそれぞれ独立してＣ１〜６アルキル基または水酸基を示す。｝

{In formula (1), X each independently represents a halogeno group or a C1-6 alkyl group. n represents the number of X and is an integer from 0 to 6. X 'shows a halogeno group. R ¹ , R ² and R ³ each independently represent a C1-6 alkyl group or a hydroxyl group. }

｛式（2）中、Ｘはそれぞれ独立してハロゲノ基またはＣ１〜６アルキル基を示す。ｎはＸの個数を示し且つ０〜６のいずれかの整数である。Ｘ’はハロゲノ基を示す。Ｒ⁴、Ｒ⁵、Ｒ⁶及びＲ⁷はそれぞれ独立して水素原子、Ｃ１〜６アルキル基または水酸基を示す。｝

{In formula (2), X respectively independently shows a halogeno group or a C1-6 alkyl group. n represents the number of X and is an integer from 0 to 6. X 'shows a halogeno group. R ⁴ , R ⁵ , R ⁶ and R ⁷ each independently represent a hydrogen atom, a C1-6 alkyl group or a hydroxyl group. }

WO 2013/047441 A

  An object of the present invention is to provide a turf disinfectant composition having a high residual activity, that is, a long duration of effect.

  In order to solve the above-mentioned subject, the present invention including the following modes came to be completed.

[1] At least one compound A selected from the group consisting of a compound represented by the formula (1), a compound represented by the formula (2) and a salt thereof,
A turf microbicide composition comprising at least one compound B selected from a multiple action point inhibiting bactericide, an oxidative phosphorylation uncoupler and a mitochondrial electron transport complex III inhibitor.

｛式（1）中、Ｘはそれぞれ独立してハロゲノ基またはＣ１〜６アルキル基を示す。ｎは化学的に許容されるＸの個数を示し且つ０〜６のいずれかの整数である。Ｘ’は水素原子またはハロゲノ基を示す。Ｒ¹、Ｒ²及びＲ³はそれぞれ独立してＣ１〜６アルキル基、Ｃ１〜６アルコキシ基または水酸基を示す。Ａ¹及びＡ²はそれぞれ独立して窒素原子または炭素原子を示す。｝

{In formula (1), X each independently represents a halogeno group or a C1-6 alkyl group. n represents the number of chemically acceptable X and is an integer of 0 to 6. X 'shows a hydrogen atom or a halogeno group. R ¹ , R ² and R ³ each independently represent a C1-6 alkyl group, a C1-6 alkoxy group or a hydroxyl group. Each of A ¹ and A ² independently represents a nitrogen atom or a carbon atom. }

｛式（2）中、Ｘはそれぞれ独立してハロゲノ基またはＣ１〜６アルキル基を示す。ｎは化学的に許容されるＸの個数を示し且つ０〜６のいずれかの整数である。Ｘ’は水素原子またはハロゲノ基を示す。Ｒ⁴、Ｒ⁵、Ｒ⁶及びＲ⁷はそれぞれ独立して水素原子、Ｃ１〜６アルキル基または水酸基を示す。｝

{In formula (2), X respectively independently shows a halogeno group or a C1-6 alkyl group. n represents the number of chemically acceptable X and is an integer of 0 to 6. X 'shows a hydrogen atom or a halogeno group. R ⁴ , R ⁵ , R ⁶ and R ⁷ each independently represent a hydrogen atom, a C1-6 alkyl group or a hydroxyl group. }

[2] The multiple action point inhibiting microbicide is at least one selected from the group consisting of iminoctadine, a salt of iminoctadine and chlorothalonil,
The uncoupling agent for oxidative phosphorylation is fluazinam,
The mitochondrial electron transport complex III inhibitor is pyribencarb
The composition as described in [1].

[3] The turfgrass constituting the turf is at least one selected from the group consisting of nosy grass, bay grass, velvet grass, bermuda grass, St. Augustine grass, creeping bentgrass, Kentucky bluegrass, perennial ryegrass, and fescue, [1 ] Or the composition as described in [2].

[4] A filament that may be propagated on a lawn, including applying the composition according to any one of the above [1] to [3] to the soil for lawn or to the foliage of turf grass that constitutes the lawn Control method of bacteria.

  The turf microbicide composition of the present invention is highly effective, that is, has a long duration of effect. The tuft fungicide composition of the present invention maintains the control effect against diseases such as disease bacteria even when the spray interval is the same, even if the spray amount is smaller than the lawn drug with low residual effect, and the spray amount is the same. Also, the control effect of disease bacteria is maintained as a long spraying interval as compared with a low residual effect turf medicine.

  The turf microbicidal composition of the present invention contains a compound A and a compound B.

  The compound A used in the present invention is a compound represented by the formula (1) (hereinafter sometimes referred to as the compound (1)), a compound represented by the formula (2) (hereinafter the compound (2)) Or at least one selected from the group consisting of a salt of compound (1) and a salt of compound (2).

X in Formula (1) or Formula (2) each independently represents a halogeno group or a C1-6 alkyl group. n represents the number of chemically acceptable X and is an integer of 0 to 6.
As C1-6 alkyl group in X, a methyl group, an ethyl group, n-propyl group, i-propyl group, n-butyl group, s-butyl group, i-butyl group, t-butyl group, n-pentyl group And n-hexyl group can be mentioned. The C1-6 alkyl group may be substituted by another group to the extent that some or all of the hydrogen atoms do not inhibit the effect of the present invention. Examples of the substituent include a halogeno group, a hydroxyl group and the like.
As a halogeno group in X, a fluoro group, a chloro group, a bromo group, and an iodine group can be mentioned.

  X 'in Formula (1) or Formula (2) shows a hydrogen atom or a halogeno group. As the halogeno group for X ', the same as those exemplified for X can be mentioned.

Each R ^1, R ² and R ³ in the formula (1) are independently a C1~6 alkyl group, a C1~6 alkoxy group or a hydroxyl group. Examples of the C1-6 alkyl group for R ¹ , R ² and R ³ include the same ones as exemplified for X.
As C1-6 alkoxy group in R ¹ , R ² and R ³ , methoxy group, ethoxy group, n-propoxy group, i-propoxy group, n-butoxy group, s-butoxy group, i-butoxy group, t- group A butoxy group etc. can be mentioned.
Each of A ¹ and A ² independently represents a nitrogen atom or a carbon atom.

R ^4, R ^5, R ^6, and R ⁷ independently represents a hydrogen atom in the formula (2) shows a C1~6 alkyl group or a hydroxyl group. Examples of the C1-6 alkyl group for R ⁴ , R ⁵ , R ⁶ and R ⁷ include the same ones as exemplified for X.

  The salt of compound (1) and the salt of compound (2) used in the present invention are not particularly limited as long as they are agriculturally and horticulturally acceptable salts. For example, salts of inorganic acids such as hydrochlorides, nitrates, sulfates and phosphates; salts of organic acids such as acetates, lactates, propionates and benzoates; and the like can be mentioned.

  Compound (1) and salts thereof are known substances. As specific examples of the compound (1) and salts thereof, there can be mentioned, for example, the compounds described in WO 2011/081174 A1. The compound (1) and salts thereof can also be produced by known methods, for example, the method described in WO 2011/081174 A1.

  Compound (2) and salts thereof are known substances. As specific examples of the compound (2) and salts thereof, there can be mentioned, for example, the compounds described in WO 2010/018686 A1. In addition, compound (2) and salts thereof can be produced by known methods, for example, the method described in WO 2010/018686 A1.

  The compound A preferably used in the present invention includes a compound represented by the formula (1-1) or (1-2).

  The compound B used in the present invention is at least one selected from the group consisting of multiple action point-inhibiting bactericides, uncoupling agents for oxidative phosphorylation, and mitochondrial electron transport complex III inhibitors.

  As a multiple action point inhibiting germicide, copper (copper salt), Bordeaux solution, copper hydroxide, copper naphthalate, copper oxide, copper oxychloride, copper sulfate, sulfur, sulfur products, calcium polysulfide, faram, mancozeb, maneb, maneb, maneb Kappa, methylam, polycarbamate, propineb, thiram, dineb, ziram, captan, captaphor, captophor, forepet, chlorothalonil, diclofluanid, tolylfluanid, glyzatine, iminoctadine triacetate, iminoctadine albesylate (iminoctadine trialbesylate) And anilazine, dithianone, quinomethionate, fluorimide and the like. Among these, at least one selected from the group consisting of iminoctadine, a salt of iminoctadine and chlorothalonil is preferable.

  Examples of the uncoupling agent for oxidative phosphorylation include binapacryl, meptylizino cup, dino cup, fluazinam, ferimzone and the like. Of these, fluazinam is preferred.

  Examples of the mitochondrial electron transport complex III inhibitor (QoI agent, QiI agent, etc.) include azoxystrobin, spiderxystrobin, cumoxystrobin, enoxastrobin, full phenoxystrobin, picoxystrobin, pyra Oxystrobin, pyraclostrobin, pyramethostrobin, triclopycarb, cresoxim-methyl, trifloxystrobin, dimoxystrobin, phenaminstrobin, metominostrobin, orysastrobin, famoxadone, fluoxastrobin, phenamidon, Pilbencarb and strobin may be mentioned. Of these, pyribencarb is preferred.

  In the fungicide composition for lawn according to the present invention, the amount of compound B is preferably more than 0.63 parts by mass but 150 parts by mass or less, more preferably 0.65 parts by mass or more and 90 parts by mass with respect to 1 part by mass of compound A Or less, more preferably 0.7 to 60 parts by mass, most preferably 0.7 to 35 parts by mass.

  The content of Compound A in the lawn microbicide composition of the present invention varies depending on the form of the preparation. Examples of the form of the preparation include wettable powders, emulsions, powders, granules, aqueous solutions, suspensions, water dispersible granules, tablets and the like. For example, the content of compound A in the wettable powder is preferably 5 to 90% by weight, more preferably 10 to 85% by weight, and the content of compound A in the emulsion is preferably 3 to 70% by weight, The content is preferably 5 to 60% by weight, and the content of the compound A in the granule is preferably 0.01 to 50% by weight, more preferably 0.05 to 40% by weight.

  Fertilizers, solid carriers, thickeners, surfactants, spreading agents, additives, solvents and the like are included in the tuft disinfectant composition of the present invention as long as the effects of the present invention are not affected. May be

  Fertilizers include compost, oil meal, fish meal, cow dung, chicken dung, etc. or organic materials formed by processing them; nitrogen fertilizers such as ammonium sulfate, ammonium nitrate, lime nitrate, urea, etc .; Phosphate fertilizers such as phosphorus fertilizers; Potassium fertilizers such as potassium chloride, potassium sulfate and potassium nitrate; Clay fertilizers such as clay lime and so on; Lime fertilizers such as calcium hydroxide; Silicate fertilizers such as potassium silicate; Boron fertilizers such as borate ; Chemical fertilizers containing various inorganic fertilizers; and the like.

  Examples of solid carriers include vegetable powders such as soybean grains and wheat flour; and mineral fine powders such as silicon dioxide, diatomaceous earth, apatite, gypsum, talc, bentonite, pyrophyllite, clay, mesh soil, and the like.

Additives include organic and inorganic compounds such as sodium benzoate, urea, and sodium sulfate; rapeseed oil, soybean oil, sunflower oil, sunflower oil, castor oil, pine oil, cottonseed oil, derivatives of these oils, and derivatives thereof An oil concentrate etc. can be mentioned.
Examples of the solvent include kerosene, xylene; petroleum fractions such as solvent naphtha; cyclohexane, cyclohexanone, dimethylformamide, dimethyl sulfoxide, alcohol, acetone, methyl isobutyl ketone, mineral oil, vegetable oil, water and the like.

  As the surfactant, for example, alkylphenyl ether to which polyoxyethylene is added, alkyl ether to which polyoxyethylene is added, higher fatty acid ester to which polyoxyethylene is added, sorbitan higher fatty acid ester to which polyoxyethylene is added, polyoxy Nonionic surfactants such as tristyryl phenyl ether to which ethylene is added, sulfuric acid ester of alkylphenyl ether to which polyoxyethylene is added, alkyl benzene sulfonate, sulfuric acid ester of higher alcohol, alkyl naphthalene sulfonate, poly Examples thereof include carboxylates, lignin sulfonates, formaldehyde condensates of alkyl naphthalene sulfonates, isobutylene-maleic anhydride copolymers and the like.

  The fungicide composition for turf of the present invention may further contain an insecticidal and acaricidal agent, a plant growth regulator, other bactericidal agents and the like as long as the effect of the present invention is not reduced.

  Below, the formulation example at the time of formulating the microbicide composition for turf of this invention is shown. The formulation can be modified without departing from the scope of the present invention, and the present invention is not limited at all by the following formulation examples. "Parts" means "parts by weight" unless otherwise noted.

(Formulation 1: wettable powder)
Compound A + Compound B 40 parts Diatomaceous earth 53 parts Higher alcohol sulfuric acid ester 4 parts Alkyl naphthalene sulfonate 3 parts The above are uniformly mixed and finely ground to obtain a wettable powder with an active ingredient of 40%.

(Formulation 2: Emulsion)
Compound A + Compound B 30 parts Xylene 33 parts Dimethylformamide 30 parts Polyoxyethylene alkyl allyl ether 7 parts The above are mixed and dissolved to obtain an emulsion having an active ingredient of 30%.

(Formulation 3: powder)
Compound A + Compound B 10 parts Clay 90 parts The above components are uniformly mixed and finely ground to obtain a powder of 10% active ingredient.

(Formulation 4: granules)
Compound A + Compound B 5 parts Clay 73 parts Bentonite 20 parts Dioctyl sulfosuccinate sodium salt 1 part Potassium phosphate 1 part The above is well ground and mixed well, water is added and thoroughly mixed, then granulated and dried to obtain an active ingredient 5 % Granules are obtained.

(Formulation 5: suspension agent)
Compound A + Compound B 10 parts Polyoxyethylene alkyl allyl ether 4 parts Polycarboxylic acid sodium salt 2 parts Glycerin 10 parts Xanthan gum 0.2 parts Water 73.8 parts The above are mixed and wet ground until the particle size becomes 3 microns or less , To obtain a 10% suspension of the active ingredient.

(Formulation 6: Granulating water dispersible powder)
Compound A + Compound B 40 parts Clay 36 parts Potassium chloride 10 parts Alkylbenzene sulfonic acid sodium salt 1 part Lignin sulfonic acid sodium salt 8 parts Alkyl benzene sulfonic acid sodium salt
Mix 5 parts or more of the formaldehyde condensate uniformly and finely grind it, then add an appropriate amount of water and knead it into clay. The clay-like material is granulated and then dried to obtain a water-dispersible powder with a 40% active ingredient.

  The fungicide composition for lawns of the present invention may bring about effects such as labor saving by being used in combination with known insecticides, acaricides, herbicides, plant growth regulators and the like.

The turf fungicide composition of the present invention may be used as it is or diluted to a predetermined concentration with water, or in the form of a solution, suspension or emulsion, and then irrigated, mixed or sprayed onto turf soil. Application, or by spraying on the foliage of turfgrass that constitutes the lawn.
Preferably, 50 g or more, more preferably 75 g or more, and even more preferably 100 g or more of a total amount of the compound A and the compound B is applied per hectare for the turf fungicide composition of the present invention. In addition, when the fungicide composition for lawns of the present invention is applied, the concentration of compound A is preferably 20 ppm or more, more preferably 30 ppm or more, still more preferably 40 ppm or more, still more preferably 50 ppm or more Adjust to The turf fungicide composition of the present invention can be used to treat turfgrass seeds.

  The turfgrass to be treated with the tuft fungicide composition of the present invention is not particularly limited as long as it is turf grass that constitutes the turf. For example, Japanese grasses such as nosiba, koshunshiba, velvet shiva, Japanese grass such as gooseberry, bermuda grass, african berudagrass, african bermudas grass, tifton shiba etc., weepin grabgrass, buffalo grass, can be mentioned Family includes centipedo grass, carpet glass, bahia grass, cypress hemlock dalisgrass, kikuyu glass (African Tikalella), St. Augustine glass (Aussus japonicus), etc., and as a beet family, red top, colonial bent glass, creeping bent grass , Bentgrass such as velvet bentgrass, Kentucky bluegrass (Nahahagusa), rough stork meadow grass (Osuohenokkadira), tin Blue grasses such as Nocatabira, Canadian bluegrass (strawberry zebra), red fescue (chovy moth), chewing fescue (hard moth moth moth), hard fescue (chovy moth moth), sheep fescs such as sheep fescue and tall fescue, perennial ryegrass, Italian ryegrass There may be mentioned cool grass such as ryegrass (Hosohmugi), orchardgrass, timothy, smooth bromegrass, tall oatgrass, crested wheatgrass, western wheatgrass, sweet vernalgrass and the like. Among these, at least one selected from the group consisting of noss, bay weeds, velvet shiva, bermuda grass, St. Augustine grass, creeping bentgrass, Kentucky bluegrass, perennial ryegrass, and fesc is preferable.

  The main diseases affecting the lawn are rust, leaf rot (Rhizoctonia solani AG-2-2 (IV)), brown patch (Rhizoctonia solani AG-2-2 (IIIB)), leaf rot Disease (dog's footprint (Curvularia geniculate)), pseudo leaf rot (spring blight, elephant's footprint, yellow patch), red blight (Pythium aphanidermatum), dollar spot disease (Sclerotinia homoeocarpa), snow rot kernel disease (Sclerotinia borealis), anthracnose (Colletotrichum graminicola), powdery mildew (Erysiphe graminis), white scleroderma, withering disease, fairy ring disease (Lycoperdon perlatum, Lepista sordida, Marasmius oreades), blast disease (Pyricularia sp.) , Etc. The fungicide composition for lawns of the present invention is excellent in the control effect against diseases of these lawns.

  About 80% of the pathogens that cause grass diseases are said to be filamentous fungi. As filamentous fungi, for example, bacteria belonging to the algae (Oomycetes), ascomycetes (Ascomycetes), imperfect fungi (Deuteromycetes), basidiomycetes (Basidiomycetes), zygomycetes (Zygomycetes), etc. may be mentioned. it can. The fungicide composition for grass of the present invention is excellent in the bactericidal effect against filamentous fungi which sometimes reproduces on the lawn. The turf microbicide composition of the present invention also has excellent bactericidal effect against resistant bacteria of existing drugs. Furthermore, since the application of a very low dose is effective, it has the effect of preventing the appearance of new resistant bacteria.

  The working effects of the fungicide composition for lawns of the present invention will be specifically described below by way of Examples. However, the following examples do not limit the scope of the present invention.

Example 1
2- {2-[(7,8-difluoro-2-methylquinolin-3-yl) oxy] -6-fluorophenyl} propan-2-ol (see Formula (1-2), Compound (1- The 10% SC agent of 2) is diluted with water to obtain a 50 ppm containing solution (solution 1-a) of compound (1-2).
The Kashman solution (iminoctadine acetate 5.0%) was diluted with water to obtain a solution containing 50 ppm of iminoctadine acetate (solution 1-b).
A 1: 1 mixture of a 10% SC agent of the compound (1-2) and a Kashiman solution was diluted with water to obtain a solution (solution 1-c) containing 50 ppm of the compound (1-2) and 50 ppm of iminoktardine acetate.

Water, solution 1-a, solution 1-b, and solution 1 using a CO ₂ pressurized sprayer with a TeeJet nozzle attached to a bent glass (pen cloth) in which bent glass duller spot disease has occurred in a house. In each test area, -c was sprayed three times at a frequency of 0.5 L / m ² and about once in about 7 days.
When 14 days, 22 days, and 29 days have elapsed from the day of the third application, Solution 1-a, Solution 1-b or Solution 1- for the test area (non-treated area) to which water was applied The diseased area rate (%) in the test area (treated area 1-a, 1-b or 1-c) to which c was sprayed was examined respectively, and the actual control rate (%) was calculated by the following formula. Each test was performed in duplicate.
Actual control rate = (1-(average treated disease area rate / untreated treated area average disease rate)) × 100

The theoretical control rate E in the treated area 1-c is calculated from the actually measured control rate M in the treated area 1-a and the actually measured control rate N in the treated area 1-b based on Colby's equation. It contrasted with the actual control rate. The results are shown in Table 1.
Colby's formula: E = M + N-(M x N) / 100

Example 2
A 20% SC agent of compound (1-2) is diluted with water, a solution containing 314 ppm of compound (1-2) (solution 2-a) and a solution containing 157 ppm of compound (1-2) (solution 2-a ') Obtained.
The 40% SC agent of fluazinam was diluted with water to obtain a solution containing 786 ppm of fluazinam (solution 2-b) and a solution containing 393 ppm of fluazinam (solution 2-b ').
A 314: 786 mixture of 20% SC agent of compound (1-2) and 40% SC agent of fluazinam is diluted with water, a solution containing 314 ppm of compound (1-2) and 786 ppm of fluazinam (solution 2-c) and A solution (solution 2-c ′) containing compound (1-2) 157 ppm and fluazinam 393 ppm was obtained.

In the field, water, solution 2-a, solution 2-b, solution 2-c using a CO ₂ pressurized sprayer with a TeeJet nozzle attached to a bent glass (pen cloth) in which a large amount of bent glass duller spot disease was generated. , Solution 2-a ', Solution 2-b' and Solution 2-c 'were sprayed at 81 mL / m ² in each test area.
From the day of spraying, 14 days, 20 days, and 27 days, when it passes, the test area (non-treated area) sprayed with water is solution 2-a, solution 2-b, solution 2-c, solution 2 -a ', solution 2-b' or test area sprayed with solution 2-c '(treatment area 2-a, 2-b, 2-c, 2-a', 2-b 'or 2-c' The diseased area rate (%) in (1) was investigated, and the actual control rate (%) was calculated. Each test was performed in triplicate.
The theoretical control rate in the treated area 2-c is calculated from the actually measured control rate in the treated area 2-a and the actually measured control rate in the treated area 2-b, based on Colby's equation, and the measured controlled rate in the treated area 2-c Contrast with. The theoretical control rate in the treated area 2-c 'is calculated from the actually measured control rate in the treated area 2-a' and the actually measured control rate in the treated area 2-b 'based on Colby's equation, and the treated area 2-c' It contrasted with the actual control rate in The results are shown in Table 2.

Example 3
A 20% SC agent of compound (1-2) is diluted with water, a solution containing 314 ppm of compound (1-2) (solution 3-a) and a solution containing 157 ppm of compound (1-2) (solution 3-a ') Obtained.
The daconyl SC agent (chlorothalonil) was diluted with water to obtain a solution containing 9946 ppm of chlorothalonil (solution 3-b) and a solution containing 4973 ppm of chlorothalonil (solution 3-b ').
A 314: 9946 mixture of a 20% SC agent and a daconyl SC agent of compound (1-2) is diluted with water, and a solution (solution 3-c) containing 314 ppm of compound (1-2) and 9946 ppm of chlorothalonil and compound (1-) 2) A solution containing 157 ppm and 4973 ppm chlorothalonil (solution 3-c ') was obtained.

In the field, water, solution 3-a, solution 3-b, solution 3-c, using a CO ₂ pressurized sprayer with a TeeJet nozzle attached to a bent glass (pen cloth) in which a large amount of bent glass duller spot disease was generated , Solution 3-a ', Solution 3-b' and Solution 3-c 'were sprayed at 81 mL / m ² in each test area.
When 14 days, 20 days, and 27 days have passed from the day of spraying, solution 3-a, solution 3-b, solution 3-c, solution 3 for the test area (non-treated area) sprayed with water -a ', the test section sprayed with the solution 3-b' or the solution 3-c '(treatment section 3-a, 3-b, 3-c, 3-a', 3-b ', or 3-c' The diseased area rate (%) in (1) was investigated, and the actual control rate (%) was calculated. Each test was performed in triplicate.
The theoretical control rate in the treated area 3-c is calculated from the actually measured control rate in the treated area 3-a and the actually measured control rate in the treated area 3-b based on Colby's equation, and the measured controlled rate in the treated area 3-c Contrast with. The theoretical control rate in the treated area 3-c 'is calculated from the actually measured control rate in the treated area 3-a' and the actually measured control rate in the treated area 3-b ', based on Colby's equation, and the treated area 3-c' It contrasted with the actual control rate in The results are shown in Table 3.

Example 4
The 10% SC agent of compound (1-2) was diluted with water to obtain a solution (solution 4-a) containing 25 ppm of compound (1-2).
Funtarf granules water-dispersible powder (pyribencarb) was diluted with water to obtain a solution containing 50 ppm of pyribencarb (solution 4-b).
A 1: 2 mixture of a 10% SC agent of compound (1-2) and a fungicidal water dispersible powder is diluted with water to obtain a solution (solution 4-c) containing 25 ppm of compound (1-2) and 50 ppm of pyribencarb The

In the field, using a CO ₂ pressurized sprayer with a TeeJet nozzle attached to a bent glass (pen cloth) planted with bent glass duller spot disease, water, solution 4-a, solution 4-b, and solution 4-c Was dispersed in each test area at 0.5 L / m ² respectively.
When 4-day, 13-day, 15-day, 18-day, and 20-day have passed from the day of application, solution 4-a, solution 4-b, or solution 4--4 to the test area (non-treated area) to which water is applied The diseased area rate (%) in the test area (treated area 4-a, 4-b, or 4-c) to which c was sprayed was examined to calculate the actual control rate (%). Each test was performed in triplicate.
The theoretical control rate in the treated area 4-c is calculated from the actually measured control rate in the treated area 4-a and the actually measured control rate in the treated area 4-b based on Colby's equation, and the measured controlled rate in the treated area 4-c Contrast with. The results are shown in Table 4.

  From the above results, it can be seen that the lawn microbicide composition according to the present invention exerts a synergistic effect of Compound A and Compound B, and has high residual efficacy, that is, a long duration of effect.

Claims (4)

At least one compound A selected from the group consisting of a compound represented by the formula (1), a compound represented by the formula (2) and a salt thereof,
A turf microbicide composition comprising at least one compound B selected from a multiple action point inhibiting bactericide, an oxidative phosphorylation uncoupler and a mitochondrial electron transport complex III inhibitor.

{In formula (1), X each independently represents a halogeno group or a C1-6 alkyl group. n represents the number of chemically acceptable X and is an integer of 0 to 6. X 'shows a hydrogen atom or a halogeno group. R ¹ , R ² and R ³ each independently represent a C1-6 alkyl group, a C1-6 alkoxy group or a hydroxyl group. Each of A ¹ and A ² independently represents a nitrogen atom or a carbon atom. }

{In formula (2), X respectively independently shows a halogeno group or a C1-6 alkyl group. n represents the number of chemically acceptable X and is an integer of 0 to 6. X 'shows a hydrogen atom or a halogeno group. R ⁴ , R ⁵ , R ⁶ and R ⁷ each independently represent a hydrogen atom, a C1-6 alkyl group or a hydroxyl group. } The multiple action point inhibiting microbicide is at least one selected from the group consisting of iminoctadine, a salt of iminoctadine and chlorothalonil,
The uncoupling agent for oxidative phosphorylation is fluazinam,
The mitochondrial electron transport complex III inhibitor is pyribencarb
The composition of claim 1.   The turf grass constituting the turf is at least one selected from the group consisting of nosy grass, soft bay grass, velvet grass, bermuda grass, St. Augustine grass, creeping bentgrass, Kentucky bluegrass, perennial ryegrass, and fescue. The composition as described in.   The control method of the filamentous fungus which may be propagated on a lawn including applying the composition as described in any one of Claims 1-3 to the foliage for turf grass which comprises the soil for lawns, or a lawn.