JP5268461B2 - PF1364 substance, its production method, production strain, and agricultural and horticultural insecticide containing the same as an active ingredient - Google Patents

Description

  The present invention relates to a novel compound having insecticidal activity, a production method thereof, a production strain, and an agricultural and horticultural insecticide containing the same as an active ingredient.

Conventionally, many agricultural and horticultural insecticides are known. However, due to problems such as drug resistance and safety, more effective and safer agents are required.
PF1364 substance is a new Austin compound. Austin, which is a related substance, is a metabolite produced by the genus Aspergillus (Non-patent Document 1), and Dehydroaustin is a metabolite produced by the genus Penicillium and the genus Aspergillus (non-patent document 1). Patent Document 2) has been reported.
Further, it has been reported that an Austin-related substance has an action of enhancing the convulsant action of a compound having a convulsant action on silkworms (Non-patent Document 3, Non-patent Document 4, Non-patent Document 5). There are no reports on the insecticidal activity of these Austin-related substances against agricultural pests. Furthermore, in the Journal of the Brazilian Chemical Society, 2003, 14 (5), 722-727 (Non-Patent Document 6), Chemistry & Biodiversity, 2008, 5 (2), 341-345 (Non-Patent Document 7), Austin It has been reported that Dehydroaustin, particularly mosquitoes, has strong activity against mosquito larvae, but there is no report on insecticidal activity against agricultural pests.

Journal of the American Chemical Society, 1976, 98 (21), 6748-6750 Chemical & Pharmaceutical Bulletin, 1982, 30 (5), 1911-1912 Bioscience, Biotechnology, and Biochemistry, 1994, 58 (2), 334-338 Abstracts of Natural Organic Compound Discussion, 1993, 35th, 670-677 Recent Research Developments in Agricultural & Biological Chemistry, 1998, 2 (Pt.2), 511-525 Journal of the Brazilian Chemical Society, 2003, 14 (5), 722-727 Chemistry & Biodiversity, 2008, 5 (2), 341-345

Many agricultural and horticultural insecticides have been reported so far, and drug resistant insect species and difficult-to-control insect species have been recognized, and new insecticides are desired.
An object of the present invention is to provide a novel compound having insecticidal activity, a production method thereof, a production strain, and an agricultural and horticultural insecticide containing the same as an active ingredient.

  As a result of earnest search for a novel agricultural and horticultural insecticide, the present inventors have found that a novel PF1364 substance (hereinafter referred to as PF1364) represented by the formula (1) produced by Aspergillus sp. It has been found that it exhibits useful insecticidal activity.

  That is, the present invention provides the following formula (1)

(1)
The PF1364 substance represented by the formula, its enantiomer, a mixture thereof, or a solvate thereof.

  The present invention also provides an agricultural and horticultural insecticide comprising the PF1364 substance represented by the formula (1), an enantiomer thereof, a mixture thereof, or a solvate thereof as an active ingredient.

  Furthermore, the present invention relates to a method for producing a PF1364 substance, characterized by culturing a microorganism belonging to the genus Aspergillus and capable of producing a PF1364 substance, and collecting the PF1364 substance from the culture. A method for producing a PF1364 substance, wherein the microorganism having the ability to produce a PF1364 substance is Aspergillus ustus or Aspergillus pseudodeflectus, and further, a microorganism having the ability to produce a PF1364 substance belonging to the genus Aspergillus is an Aspergillus sp. PF1364 strain A method for producing the PF1364 substance is provided.

  Another embodiment of the present invention relates to a microorganism belonging to the genus Aspergillus having the ability to produce the PF1364 substance represented by the above formula (1). Furthermore, the microorganism belonging to the genus Aspergillus having the ability to produce the PF1364 substance is Aspergillus ustus or Aspergillus pseudodeflectus, and the microorganism belonging to the genus Aspergillus having the ability to produce the PF1364 substance is an Aspergillus sp. PF1364 strain or a mutation thereof It provides microorganisms that are strains.

  By providing PF1364 of the present invention, its production method, and production strain, it is possible to provide an insecticidal horticultural insecticide with excellent insecticidal activity and safety.

The physicochemical properties of PF1364 are shown below. The method for measuring physicochemical properties is as follows.
1. The color and shape were judged from the appearance.
2. The mass spectrum was measured using a JMS-700 mass spectrometer (JEOL) and ZQ-4000 (Waters).
Ions were detected by the atmospheric pressure ionization electron spray method (ES-MS) and the fast atom collision method (FAB-MS).
3. The NMR spectrum was measured using JNM-LA400 (JEOL).
4). The ultraviolet absorption wavelength was measured using Shimadzu UV-Visible spectrophotometer UV-1800 series.

<Physical and chemical properties of PF1364>
1) Color and shape: white powder / crystal 2) Mass spectrum: (ES-MS) M / Z 617 (M + H) ⁺ , (FAB-MS) M / Z 617 (M + H) ⁺ M / Z 639 (M + H + Na) ⁺
3) Molecular formula: C ₃₁ H ₃₆ O ₁₃
4) ¹ H -NMR spectrum (400 MHz, CDCl?)
δ (ppm): 1.41 (3H, s), 1.45 (3H, s), 1.47 (3H, s), 1.70 to 1.94 (8H, m), 2.08 (3H, s), 2.29 (1H, dd), 3.00 (1H, dd), 4.30 (1H, dd), 5.21 (H, q), 5.50 (1H, dd), 5.82 (1H, d), 5.93 (1H, s), 5.93 (1H, d), 6.87 ( 1H, m)
5) ¹³ C-NMR spectrum (100 MHz, CDCl 3)
δ (ppm): 11.8, 12.2, 13.9, 14.7, 16.0, 20.8, 23.3, 27.3, 35.5, 37.0, 45.9, 61.3, 64.6, 65.4, 67.0, 75.8, 77.3, 83.3, 85.9, 89.7, 93.5, 125.1, 127.1 , 137.6, 140.6, 163.6, 164.1, 166.5, 168.4, 174.6, 191.5
6) UV absorption spectrum λmax (MeOH): 218 nm, 202 nm

PF1364 represented by the formula (1) can be obtained by culturing a microorganism capable of producing PF1364 and collecting it from the culture.
Therefore, as another embodiment of the present invention, there is provided a method for producing PF1364 characterized by culturing a PF1364-producing bacterium represented by the above formula (1) and collecting PF1364 from the culture.
Examples of the PF1364 producing bacterium represented by the formula (1) include microorganisms belonging to the genus Aspergillus. More preferably, Aspergillusustus, Aspergillus pseudodeflectus, etc. are mentioned. An example is Aspergillus sp. PF1364 strain. The PF1364 strain has been deposited with the Patent Organism Depositary, National Institute of Advanced Industrial Science and Technology, and its receipt number is FERM AP-21597.
The novel substance PF1364 can be obtained by culturing Aspergillus sp. PF1364 strain, producing and accumulating PF1364, and collecting PF1364 from this culture. Aspergillus sp. PF1364, a strain producing PF1364, is a newly isolated strain from a soil sample collected in the Goto Islands, Nagasaki Prefecture. Has the following genetic and mycological properties:

(1) Homology search result based on genetic information of PF1364 strain The following two types of genetic information necessary for identification of the strain were obtained.
<A base sequence of 28S rDNA-D1/D2 region of Aspergillus sp. PF1364>
GCATATCAATAAGCGGAGGAAAAGAAACCAACCGGGATTGCCTCAGTAACGGCGAGTGAAGCGGCAAGAGCTCAAATTTGAAATCTGGCCCCTCCGGGGTCCGAGTTGTAATTTGCAGAGGATGCTTCGGGTGCGGCCCCTGTCTAAGTGCCCTGGAACGGGCCATCAGAGAGGGTGAGAATCCCGTCTTGGGCAGGGTGCCCGTGCCCGTGTGAAGCTCCTTCGACGAGTCGAGTTGTTTGGGAATGCAGCTCTAAATGGGTGGTAAATTTCATCTAAAGCTAAATACCGGCCGGAGACCGATAGCGCACAAGTAGAGTGATCGAAAGATGAAAAGCACTTTGAAAAGAGAGTTAAACAGCACGTGAAATTGTTGAAaGGGAAGCGCTTGCGACCAGACTCGGCCCCGGGGTTCAGCCAGCACTCGTGCTGGTGTACTTCCCCGGGGGCGGGCCAGCGTCGGTTTGGGCGGCCGGTCAAAGGCCCCAGGAATGTGTCGCCCTCCGGGGCGTCTTATAGCCTGGGGTGCAATGCGGCCAGCCCGGACCGAGGAACGCGCTTCGGCACGGACGCTGGCGTAATGGTCGCAAACGACCCGTCTTGAAACACGGACC

  Aspergillus ustus UWFP546 (accession) as a result of homology search (by international base sequence database BLAST search) from genetic information of 28S ribosomal RNA that can generally be classified at the genus level No. AY216676) and Aspergillus pseudodeflectus NRRL6135 (Accession No. AF433123) showed a 99.8% homology. In the phylogenetic tree created based on the high-order base sequence obtained by homology search, the base sequence of 28S rDNA-D1 / D2 region of Aspergillus sp. PF1364 strain forms the same phylogenetic branch as Aspergillus ustus and Aspergillus pseudodeflectus did.

<Base sequence of ITS-5.8S rDNA region of Aspergillus sp. PF1364>
GGAAGTAAAAGTCGTAACAAGGTTTCCGTAGGTGAACCTGCGGAAGGATCATTACCGAGTGCAGGTCTGCCCCCGGGCAGGCCTAACCTCCCACCCGTGAATACCTGACCAACGTTGCTTCGGCGGTGCGCCCCCCCCCGGGGGTAGCCGCCGGAGACCACACCGAACCTCCTGTCTTTAGTGTTGTCTGAGCTTGATAGCAAACCTAtTAAAACTTTCAACAATGGATCTCTTGGTTCCGGCATCGATGAAGAACGCAGCGAACTGCGATAAGTAATGTGAATTGCAGAATTCAGTGAATCATCGAGTCTTTGAACGCACATTGCGCCCCCTGGCATTCCGGGGGGCATGCCTGTCCGAGCGTCATTGCTGCCCTTCAAGCCCGGCTTGTGTGTTGGGTCGTCGTCCCCCCCGGGGGACGGGCCCGAAAGGCAGCGGCGGCACCGCGTCCGGTCCTCGAGCGTATGGGGCTTTGTCACCCGCTCGATTAGGGCCGGCCGGGCGCCAGCCGGCGTCTCCAACCTTCTATTTTACCAGGtTGACCTCGGATCAGGTAGGGATACCCGCTGAACTTAAGCATATCAATAAGCGGAGGA

As a result of homology search (by international base sequence database BLAST search) based on genetic information of ribosomal RNA in ITS1-5.8S-ITS2 region, which can generally be classified at the species level, Aspergillus ustus UWFP546 (accession number AF455532) and Aspergillus pseudodeflectus NRRL6135 (accession number DQ778908) showed a 99.8% homology rate. In the phylogenetic tree created based on the high-order base sequence obtained by homology search, the base sequence of ITS-5.8S rDNA region of Aspergillus sp. PF1364 strain formed the same phylogenetic branch as Aspergillus ustus and Aspergillus pseudodeflectus .
Based on the above, it was estimated that Aspergillus sp. PF1364 belongs to the Astigillus genus Nidulantes subgenus Usti section, and among them, it is a kind of Aspergillus genus (Aspergillus sp.) Closely related to Aspergillusustus or Aspergillus pseudodeflectus.

(2) Mycological properties of PF1364 strain
(2) -1 Growth state It grows well on a potato dextrose agar medium, and reaches a colony diameter of 23 to 27 mm after culturing at 25 ° C. for 7 days. Pale red to white, velvet shape, the peripheral part is raised, and consists of a thick mycelium layer. A large number of conidia occur throughout the whole area except the peripheral edge. It produces a yellow soluble pigment. The back side is dark yellow.
It grows well on malt extract agar medium and reaches a colony diameter of 13 to 18 mm after culturing at 25 ° C. for 7 days. Brown to white, velvet, conidia occur in the center.
It grows well on oatmeal agar medium and reaches a colony diameter of 33 to 36 mm after culturing at 25 ° C. for 7 days. It consists of dark brown, velvet-like, flat, and thin mycelium layers, and many conidia occur throughout. The back is light ocher.
Growth at 37 ° C. has also been confirmed.

(2) -2 Morphological features Conidial pattern is 100-200 × 3-4.5 μm, upright from vegetative mycelium, non-branching, no septum, surface is smooth to fine spine, colorless to brown Yes. The tip of the handle swells, and the formation of a spherical to sub-spherical apex (8.0 to 13.0 μm) is recognized. From 2/3 on the periphery of the apex, a cylindrical metre (4.5 to 7.7). 5 × 1.5 to 2.5 μm) is formed, and from the tip, an ampoule-type phialide (5.0 to 7.5 × 1.5 to 2.5 μm) having a short neck as conidia-forming cells is formed. It has the structure of the two-row asperdilam formed. The conidia (2.5-3.5 μm) are fiaro-type, spherical, 1 cell, the surface is fine spiny to rough, light brown to brown.

Based on the above bacteriological properties, this strain is considered to belong to the Astigillus genus Nidulantes subgenus Usti section. Of the five species included in this section, the conidia of the PF1364 strain were microspinous, and thus were narrowed down to Aspergillus ustus or Aspergillus pseudodeflectus.
There is no contradiction in the genetic information and mycological properties obtained above, and based on these results, the strain was identified as Aspergillus sp. (Aspergillus sp. ) I decided to call it PF1364 strain.
Aspergillus sp. Strain PF1364 is susceptible to changes in its properties as seen in other molds. For example, any mutated strain (naturally occurring or inducible) derived from an Aspergillus sp. Strain PF1364, a zygote or a gene recombinant can be used in the present invention.

(3) Cultivation method of PF1364 strain, purification method of PF1364 In the method of the present technology, as a bacterium belonging to Aspergillus sp. And capable of producing PF1364, for example, PF1364 strain is used as a carbon source and Incubate in nutrient medium containing nitrogen source.
As the nutrient source, known ones conventionally used for mold cultivation can be used, and the medium to be used may be either a natural medium or a synthetic medium.

  For example, as the carbon source, glucose, sucrose, starch syrup, dextrin, starch, glycerol, molasses, grains such as rice, wheat, corn grits, and animal and vegetable oils can be used. As the nitrogen source, soybean flour, wheat germ, corn steep liquor, cottonseed meal, meat extract, peptone, yeast extract, ammonium sulfate, sodium nitrate, urea, and the like can be used. In addition, it is effective to add inorganic salts capable of generating sodium, potassium, calcium, magnesium, cobalt, chlorine, phosphoric acid, sulfuric acid and other ions as necessary. In addition, organic substances and inorganic substances that assist the growth of bacteria and produce PF1364 can be appropriately added. Furthermore, micronutrients such as vitamins that promote the growth of this bacterium and the production of PF1364, growth promoting substances, precursors, and the like may be appropriately added to the medium as necessary.

  The culture may be performed under aerobic conditions such as stationary culture, normal shaking, or aeration and agitation culture. It is preferable to perform the culture in the vicinity of neutral pH in liquid culture. The temperature suitable for the culture is 25 to 40 ° C., but in many cases, the culture is performed at around 25 to 30 ° C. The production of PF1364 varies depending on the culture medium and culture conditions, but in any of stationary culture, shaking culture and tank culture, the accumulation usually reaches its maximum in 2 to 20 days. The culture is stopped when the target accumulation of PF1364 reaches the maximum. The culture conditions such as medium composition, medium liquidity, culture temperature, stirring speed, and aeration rate should be adjusted and selected as appropriate according to the type of strain used and external conditions. Needless to say. In liquid culture, when there is foaming, an antifoaming agent such as silicone oil, vegetable oil, or surfactant can be used as appropriate. Since PF1364 accumulated in the culture thus obtained is contained in the cells and in the culture filtrate, it is advantageous to extract the PF1364 by solvent extraction of the culture.

  As a purification method from the culture, for example, a compound represented by the formula (1) is extracted from the culture using an appropriate organic solvent, and the extract is subjected to an adsorption / desorption method using an adsorbent, a gel filtration agent Purification may be performed using the molecular partitioning method used. More specifically, the culture containing the active ingredient is extracted with, for example, ethyl acetate, the extract is concentrated under reduced pressure, the extract is dissolved in a small amount of chloroform, and the mixture is equilibrated with chloroform. Chromatography with / methanol solvent. Then, the elution fraction containing the active substance is concentrated under reduced pressure, redissolved in methanol, gel filtration with Sephadex LH-20 (Pharmacia Fine Chemicals) equilibrated with methanol, or solvent of hexane / ethyl acetate. Chromatography with a hexane / ethyl acetate solvent using a silica gel column equilibrated in step 1), and the resulting active compound group is converted into a reverse phase system using an ODS column or the like, or a normal phase system using a silica gel column or the like. The target compound can be obtained by performing high performance liquid chromatography.

Examples of the solvent of the solvate of PF1364 which is the compound of the present invention include the following.
With water, methanol, ethanol, n-propanol, i-propanol, n-butanol, 2-butanol, isobutanol, tert-butanol, acetone, acetonitrile, n-hexane, n-heptane, ethyl acetate, butyl acetate, chloroform, etc. is there.
Preferred solvates are hydrates, methanol solvates, ethanol solvates, ethyl acetate solvates, and the like, more preferably hydrates.

  PF1364 of the present invention exhibits an excellent control effect (insecticidal activity) against various pests and can be used as an agricultural and horticultural insecticide. Species of which PF1364 exhibits a controlling effect include lepidopterous insects (for example, Spodoptera litura, Shirochimojiyoto, Awayo, Yotoga, Tamanayaga, Trichopulsia, Heliotis, Helicoberpa, etc., Nikameiga, Konoumeiga, European corn borer, Common moth, Shibatatsuga, Watanogaiga, Noshimemadaranoga, etc. Species of the genus Kutis, Suga such as the longhorn beetle, Kibata such as the cotton beetle, Hitriga such as the white-faced starfish, Hirosukoga such as the moth and the common moth, etc., Hemiptera pests (for example, peach moa) Aphids such as aphids, cotton aphids, leafhoppers such as brown planthoppers, leafhoppers, white planthoppers, leafhoppers such as leafhoppers, red beetles, red beetles, chabaeokamushimushi, minamiokakamushi, horned beetles Whiteflies, stag beetles, scale insects such as stag beetles, staghorn beetles, pheasants, etc.), Coleopterous pests (for example, weeviles such as maizewevil, rice weevil, azuki beetle, and white-tailed beetles) Scarabaeidae, Scarabaeidae, Scarabae, etc., Beetle leaf beetle, cucumber potato beetle, Colorado potato beetle, Western corn rootworm, Southern cornle Worms such as worms, rice beetles, blue-spotted beetles, sinkworms, epilacunas such as Aedes aegypti, beetles, etc., ticks (for example, spider mites, spider mites, red spider mites, apple spider mites, oligonicas sp.), Tomatoes Flies mites such as rust mites, citrus mites, chano mites, dust mites such as chano mites, mites, etc., hymenoptera pests (eg, wasps such as wasps), straight insects (eg, grasshoppers), twins Lepidopterous pests (for example, houseflies, mosquitoes, anopheles, chironomids, black flies, mosquito flies, sand flies, sand flies, leguminous flies, tomato clover flies, leaf flies such as eggplant flies, fruit flies, fruit flies, flies Duck, butterflies, flyfish, flies, sand flies, etc.), thrips pests (for example, Thrips thrips, Thrips thrips, Thrips thrips, Thrips thrips, Thrips thrips, Thrips thrips) Nematodes (for example, root-knot nematodes, nectar nematodes, cyst nematodes, aferenchoides such as rice scented nematodes, pine wood nematodes, etc.). Preferred are Hemiptera and Thripidae pests.

  When the compound PF1364 of the present invention is used as an active ingredient of an agricultural and horticultural fungicide, it may be used as it is, but usually a suitable solid carrier, liquid carrier, gaseous carrier, surfactant, dispersant and other It is mixed with formulation adjuvants and used in any dosage form such as emulsion, solution, suspension, wettable powder, powder, granule, tablet, oil, aerosol, flowable and the like.

  Examples of the solid carrier include talc, bennite, clay, kaolin, diatomaceous earth, vermiculite, white carbon, calcium carbonate and the like.

  Examples of the liquid carrier include alcohols such as methanol, n-hexanol and ethylene glycol, ketones such as acetone, methyl ethyl ketone and cyclohexanone, aliphatic hydrocarbons such as n-hexane, kerosene and kerosene, toluene, xylene and methylnaphthalene. Aromatic hydrocarbons such as diethyl ether, dioxane and tetrahydrofuran, esters such as ethyl acetate, nitriles such as acetonitrile and isobutyronitrile, acid amides such as dimethylformamide and dimethylacetamide, soybean oil , Vegetable oils such as cottonseed oil, dimethyl sulfoxide, water and the like. Examples of the gas carrier include LPG, air, nitrogen, carbon dioxide gas, dimethyl ether and the like.

Surfactants and dispersants for emulsification, dispersion, spreading, etc. include, for example, alkyl sulfates, alkyl (aryl) sulfonates, polyoxyalkylene alkyl (aryl) ethers, polyhydric alcohol esters, lignin A sulfonate or the like is used.
Furthermore, as an auxiliary agent for improving the properties of the preparation, for example, carboxymethyl cellulose, gum arabic, polyethylene glycol, calcium stearate and the like are used.
The above carriers, surfactants, dispersants, and adjuvants may be used alone or in combination as necessary.
The content of the active ingredient in these preparations is usually 1-75% by weight for emulsions, usually 0.3-25% by weight for powders, 1-90% by weight for wettable powders, and usually 0.5% for granules. -10% by weight is suitable.

  These preparations may be used as they are, but may be diluted in some cases. These preparations can also be used by mixing with other fungicides, insecticides, acaricides, herbicides, plant growth regulators, fertilizers and the like.

  In the present specification, other pesticides that can be mixed include insecticides, fungicides, acaricides, herbicides, plant growth regulators, and specific agents include, for example, the Pesticide Manual (The Pesticide Manual, 13th edition published by The British Crop Protection Council) and Shibuya Index (SHIBUYA INDEX 10th edition, 2005, published by SHIBUYA INDEX RESEARCH GROUP).

  Desirable examples of other pesticides that can be mixed include pesticides: acephate, dichlorvos, EPN, fenitrothion, fenamifos, prothiofos, profenofos , Pyraclofos, chlorpyrifos-methyl, chlorfenvinphos, demeton, ethion, malathion, coumaphos, isoxathion, fenthion ), Diazinon, thiodicarb, aldicarb, oxamyl, propoxur, carbaryl, fenobucarb, ethiofencarb, fenothiocarb, pirimicurve pirimi ) Carbofuran, carbosulfan, furathiocarb, hyquincarb, alanycarb, metomyl, benfuracarb, cartap, thiocyclam, bensultap ), Dicofol, tetradifon, acrinathrin, bifenthrin, cycloprothrin, cyfluthrin, dimefluthrin, empenthrin, fenthrin (fenthrin) , Fenpropathrin, imiprothrin, methfluthrin, permethrin, phenothrin, resmethrin, tefluthrin, tetramethrin, tramethrin, tramethrin, tramethrin Phosphorus (transfluthrin), cypermethrin (cypermethrin), deltamethrin (deltamethrin), cyhalothrin, fenvalerate, fluvalinate, etofenprox, flufenprox, halfenprox (halfenprox), silafluofen, cyromazine, diflubenzuron, teflubenzuron, flucycloxuron, flufenoxuron, hexaflumuron, lufenuron, lufenuron (lu) , Novaluron, penfluron, triflumuron, chlorfluazuron, diafenthiuron, metoprene, fenoxycarb, pyriproxyfen, Halofenozide , Tebufenozide, methoxyfenozide, chromafenozide, dicyclanil, buprofezin, hexythiazox, amitraz, chlordimeform, chlordimeform , Flufenerim, pyrimidifen, tebufenpyrad, tolfenpyrad, fluacrypyrim, acequinocyl, cyflumetofen, flubendiamide, flubendiamide, flubendiamide, flubendiamide ), Etoxazole, imidacloprid, nitenpyram, c1othianidin, acetamiprid (aceta) miprid), dinotefuran, thiacloprid, thiamethoxam, pymetrozine, bifenazate, spirodiclofen, spirodisifen, fenomeyr, flonicamid, flonicamid, flonicamid ), Pyriproxyfene, indoxacarb, pyridalyl, spinosad, avermectin, albamectin, milbemycin, azadirachtin, nicotine, rotenone , BT agents, entomopathogenic virus agents, emamectin benzoate, spinetoram, pyrifluquinazon, chlorantraniliprole, cyenopyrafen, spinopyrafen Tetramat, lepimectin, metaflumizone, pyrafluprole, pyriprole, dimefluthrin, fenazaflor, hydramethylnon, triazamate is there.

Examples of mixable fungicides include, for example, azoxystrobin, kresoxym-methyl, trifloxystrobin, orysastrobin, picoxystrobin, Strobilurin compounds such as floxastrobin, mepanipyrim, pyrimethanil, anilinopyrimidine compounds such as cyprodinil, triadimefon, bitertanol, triflumizole ( triflumizole), etaconazole, etaconazole, propiconazole, penconazole, flusilazole, microbutanil, cyproconazole, tebuconazole, hexaconazole, proclorazol (prochloraz), shime Azole compounds such as simeconazole, quinoxaline compounds such as quinomethionate, maneb, zineb, mancozeb, polycarbamate, propineb, etc. Dithiocarbamate compounds, phenylcarbamate compounds such as diethofencarb, chlorothalonil, organochlorine compounds such as quintozene, benomyl, thiophanate-methyl, carbendazole Benzimidazole compounds such as metalaxyl, oxadixyl, ofurase, benalaxyl, furalaxyl, phenylamides such as cyprofuram, dichlofluanid Like sul Phenic acid compound, copper hydroxide (copperhydroxide), copper compound such as oxine-copper, isoxazole compound such as hydroxyisoxazole, fosetyl-aluminium , Organophosphorus compounds such as tolclofos-methyl, captan, captafol, N-halogenothioalkyl compounds such as folpet, procymidone, iprodione ( iprodione), dicarboximide compounds such as vinchlozolin, flutolanil, benzanilide compounds such as mepronil, morpholine compounds such as fenpropimorph, dimethomorph , Triphenyltin hydroxide, fenthin acetate Organotin compounds such as ate), cyanopyrrole compounds such as fludioxonil, fenpiclonil, other fthalide, probenazole, acibenzolar-S-methyl, thiazinyl (tiadinil), isotianil, carpropamid, diclocymet, phenoxanil, tricyclazole, pyroquilon, ferimzone, fluazinam, fluazinam, cymoxanil (triforine), pyrifenox, fenarimol, fenpropidin, pencicuron, cyazofamid, cyflufenamid, boscalid, penthiopyrad (prothiodrad) proquinazid), mushroom Fen (quinoxyfen), famoxadone, fenamidon (fenamidone), iprovalicarb, iventalicarb, benthiavalicarb-isopropyl, fluopicolide, pyribencarb, kasugamycin val, myida ).

  EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated concretely, this invention is not limited to these Examples.

Production Example Production Example 1 Production of PF1364 As a seed medium, starch (starch) 2.0%, glucose (glucose) 1.0%, polypeptone 0.5%, wheat germ 0.6%, yeast extract 0.3%, A medium (pH 7.0 before sterilization) having a composition of 0.2% soybean meal and 0.2% calcium carbonate was used. Moreover, as a production medium, what added 0.3% of soybean meal to the rice which absorbed water enough was used.
The 100 mL Erlenmeyer flask into which 20 mL of the above seed medium was dispensed was sterilized at 120 ° C. for 20 minutes, and after inoculating one platinum loop of slant agar culture of PF1364 strain, the seed was cultured by shaking at 25 ° C. for 3 days. A culture broth was obtained. Next, a 315 × 435 × 98 mm culture vessel (made of stainless steel) charged with 4 kg of production medium (rice) was sterilized at 120 ° C. for 20 minutes, inoculated with 150 mL of the seed culture solution, and stirred well. Static culture was performed at 25 ° C. for 14 days.
An equivalent amount of 67% acetone aqueous solution was added to 1 kg of the thus obtained culture to extract the target substance, acetone was distilled off under reduced pressure, and ethyl acetate was added for extraction. The ethyl acetate layer was concentrated under reduced pressure to obtain 1.03 g of a crude extract. This was applied to a column of HP-20 and the active ingredient was eluted with an 80% acetone eluent and dried under reduced pressure to obtain 210 mg of a solid. This solid is eluted with a small amount of methanol, and then subjected to fractionation operation by TLC or high performance liquid chromatography (CAPCELPAK • ODS (SHISEIDO) 4.6φ × 200 mm, water-acetonitrile), thereby obtaining the formula (1). PF1364 can be isolated.

Formulation Example Formulation Example 1 [Granule]
PF1364 3% by weight
Bentonite 40% by weight
Talc 10% by weight
45% by weight clay
2% by weight calcium lignin sulfonate
The above components were pulverized and mixed uniformly, kneaded well with water, and granulated and dried to obtain granules.

Formulation Example 2 [wettable powder]
PF1364 30% by weight
50% by weight of clay
2% white carbon
Diatomaceous earth 13% by weight
Calcium lignin sulfonate 4% by weight
Sodium lauryl sulfate 1% by weight
The above ingredients were mixed uniformly and pulverized to obtain a wettable powder.

Formulation Example 3 [Granule wettable powder]
PF1364 30% by weight
60% clay
Dextrin 5% by weight
Alkyl maleic acid copolymer 4% by weight
Sodium lauryl sulfate 1% by weight
The above ingredients were uniformly pulverized and mixed, mixed well with water, then granulated and dried to obtain a granulated wettable powder

Formulation Example 4 [Flowable Agent]
PF1364 25% by weight
POE polystyryl phenyl ether sulfate 5% by weight
Propylene glycol 6% by weight
Bentonite 1% by weight
Xanthan gum 1% aqueous solution 3% by weight
PRONAL EX-300 (Toho Chemical Co., Ltd.) 0.05% by weight
ADDAC 827 (Kay Kasei Co., Ltd.) 0.02% by weight
100% by weight of water
The total amount excluding the 1% aqueous solution of xanthan gum and an appropriate amount of water from the above blend was premixed and then pulverized with a wet pulverizer. Thereafter, 1% aqueous solution of xanthan gum and the remaining water were added to obtain a flowable agent at 100% by weight.

Formulation Example 5 [Emulsion]
PF1364 15% by weight
N, N-dimethylformamide 20% by weight
Solvesso 150 (ExxonMobil Co., Ltd.) 55% by weight
10% by weight of polyoxyethylene alkyl aryl ether
The above ingredients were uniformly mixed and dissolved to obtain an emulsion.

Formulation Example 6 [powder]
PF1364 2% by weight
60% clay
Talc 37% by weight
Calcium stearate 1% by weight
The said component was mixed uniformly and the powder agent was obtained.

Formulation Example 7 [DL powder]
PF1364 2% by weight
DL clay 94.5% by weight
2% white carbon
Calcium stearate 1% by weight
Light liquid paraffin 0.5% by weight
The said component was mixed uniformly and the powder agent was obtained.

Formulation Example 8 [Fine Granule F]
PF1364 2% by weight
Carrier 94% by weight
2% white carbon
Hyzol SAS-296 2% by weight
The said component was mixed uniformly and the powder agent was obtained.

Test example Test example 1 Japanese black leafhopper control test Hydroponic wheat seedling roots were treated with a chemical solution prepared to a predetermined concentration with 10% acetone water (10 μg / seedling). After the drug was absorbed from the root for 3 days, 10 second-instar larvae were released. Thereafter, it was left in a constant temperature room at 25 ° C. (16 hours light period 18 hours dark period). The insects were observed for life and death 3 days after the release, and the death rate was calculated according to the following formula. Two-run test.

Mortality rate (%) = {Number of dead insects / (Number of living insects tens of dead insects)} x 100
As shown in Table 1, it is clear that the insecticidal activity of PF1364 is extremely high compared to Austin-related Dehydroaustin.

Test Example 2 Akahigehosomidorikasikameka control test A potted rice seedling was sprayed with a chemical solution prepared to 200 ppm in 10% acetone water. After air drying, the 2nd instar larvae were released. Thereafter, it was left in a constant temperature room at 25 ° C. (16 hours light period 18 hours dark period). The insects were observed for life and death 3 days after the release, and the death rate was calculated according to the following formula. Two-run test.

Mortality rate (%) = {Number of dead insects / (Number of living insects tens of dead insects)} x 100
PF1364 showed a high insecticidal activity with a mortality rate of 80% or more against the red beetle.

Test Example 3 Cotton Aphid Control Test A leaf disc having a diameter of 2.0 cm was cut out from a pot-grown cucumber and sprayed with a chemical solution adjusted to 200 ppm with 50% acetone water (added with 0.05% Tween 20). . After air drying, the first instar larvae were released. Thereafter, this was left in a constant temperature room at 25 ° C. (16 hours light period 18 hours dark period). The insects were observed for life and death 3 days after the release, and the death rate was calculated according to the following formula. Two-run test.

Mortality rate (%) = {Number of dead insects / (Number of living insects tens of dead insects)} x 100
PF1364 showed high insecticidal activity against cotton aphids with a mortality rate of 80% or more.

Test example 4 Citrus thrips control test A leaf disk with a diameter of 2.8 cm was cut out from a pot-grown bean and sprayed with a chemical solution adjusted to 200 ppm with 50% acetone water (added with 0.05% Tween 20). did. After air drying, the first instar larvae were released. Thereafter, this was left in a constant temperature room at 25 ° C. (16 hours light period 18 hours dark period). The insects were observed for life and death 3 days after the release, and the death rate was calculated according to the following formula. Two-run test.

Mortality rate (%) = {Number of dead insects / (Number of living insects tens of dead insects)} x 100
PF1364 showed a high insecticidal activity with a mortality rate of 80% or more against the orange thrips.

Test Example 5 Leafhopper control test A potted rice seedling was sprayed with a chemical solution prepared to 200 ppm with 10% acetone water. After air drying, the 2nd instar larvae were released. Thereafter, it was left in a constant temperature room at 25 ° C. (16 hours light period 18 hours dark period). The insects were observed for life and death 3 days after the release, and the death rate was calculated according to the following formula. Two-run test.

Mortality rate (%) = {Number of dead insects / (Number of living insects tens of dead insects)} x 100
PF1364 showed a high insecticidal activity with a mortality rate of 80% or more against the leafhopper leafhopper.

Test Example 6 Onsite whitefly control test A potted cucumber was sprayed with a chemical solution prepared to 100 ppm with 50% acetone water (added with 0.05% Tween 20). To this, 10 adults (one strain) of the whitefly whitefly were released and allowed to lay eggs for 2 days. Two days after release, the adults were removed and the pots were left in a constant temperature room at 25 ° C. (16 hours light period, 18 hours dark period). The number of middle-aged larvae was observed 15 days after adult release, and the density index was calculated according to the following formula.

Density index = (number of middle-aged larvae in treated area / number of middle-aged larvae in untreated area) x 100
PF1364 showed a high density suppression effect with a density index of 0 against white fly whitefly.

Claims (6)

Following formula (1)


(1)
PF1364 substance, or is a solvate represented in. PF1364 substance, or is an agricultural and horticultural insecticide comprising a solvate thereof as an active ingredient of claim 1. Aspergillus (Aspergillus) culturing a microorganism having an ability to produce PF1364 substance belonging to the genus, and collecting the PF1364 substance from the culture, the following formula (1)

(1)
The manufacturing method of PF1364 substance represented by these. Microorganism having an ability to produce PF1364 substance belongs to Aspergillus (Aspergillus) genus, Aspergillus Usutasu (Aspergillus ustus), or method of PF1364 substance according to claim 3 is an Aspergillus pseudotyped differential rectus (Aspergillus pseudodeflectus). Microorganism having an ability to produce PF1364 substance belongs to Aspergillus (Aspergillus) genus, the production of PF1364 substance according to the deposited Aspergillus species (Aspergillus sp.) Claim 3 is the PF1364 strain accession number FERM P-21597 Method. A microorganism belonging to the genus Aspergillus having the ability to produce the PF1364 substance according to claim 1, which is deposited under the accession number FERM P-21597 , or Aspergillus sp. PF1364 strain, or its Microorganisms that are mutant strains.