WO2021075283A1 - Agent pharmaceutique pour amener l'ennemi naturel d'un organisme nuisible à coloniser des cultures, et procédé pour amener l'ennemi naturel d'un organisme nuisible à coloniser des cultures - Google Patents

Agent pharmaceutique pour amener l'ennemi naturel d'un organisme nuisible à coloniser des cultures, et procédé pour amener l'ennemi naturel d'un organisme nuisible à coloniser des cultures Download PDF

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Publication number
WO2021075283A1
WO2021075283A1 PCT/JP2020/037664 JP2020037664W WO2021075283A1 WO 2021075283 A1 WO2021075283 A1 WO 2021075283A1 JP 2020037664 W JP2020037664 W JP 2020037664W WO 2021075283 A1 WO2021075283 A1 WO 2021075283A1
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Prior art keywords
mite
plant
acid compound
jasmonic acid
natural enemy
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PCT/JP2020/037664
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English (en)
Japanese (ja)
Inventor
武志 大矢
秀敏 植草
雅巳 腰山
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神奈川県
日本ゼオン株式会社
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Priority to JP2021552316A priority Critical patent/JPWO2021075283A1/ja
Publication of WO2021075283A1 publication Critical patent/WO2021075283A1/fr

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G7/00—Botany in general
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M99/00—Subject matter not provided for in other groups of this subclass

Definitions

  • the present invention relates to a drug having an effect of colonizing crops with fog mites, which are natural enemy organisms of pests.
  • Methyl jasmonate and n-propyldihydrojasmonate (prohydrojasmonate) which are jasmonic acid compounds, have the effect of improving the colonization of jasmonic acid, especially for tomatoes and cherry tomatoes, which are difficult to colonize.
  • the present invention relates to a jasmonic acid compound preparation containing, and a technique for improving the fixability of mosquito mites to crops by using these jasmonic acid compound preparations. Furthermore, it relates to a pest control method using natural enemy organisms.
  • Insecticide using such chemical substances as a means to suppress the influence on other ecosystems as much as possible and specifically exterminate only the pests for the purpose of control, the natural enemies of the pests are cultivated in the cultivation field.
  • the method of letting go is adopted.
  • Patent Document 1 describes solanaceous fruit vegetables such as tomatoes, peppers, eggplants, and capsicum; cruciferous vegetables such as cucumber, melon, and watermelon; cruciferous vegetables such as cabbage and abrana; Solanaceous vegetables such as beans, solanaceous beans, soybeans, and red beans; cruciferous fruits and vegetables such as strawberries; and flowers such as roses, carnations, gerbera, and cyclamen are established in seedlings during raising, and spider mites, horse mackerel, etc. And methods for controlling pests such as mustards are described.
  • the colonization method described in Patent Document 1 is only to supplement the seedling raising environment with food other than water, prey insects and their eggs, and pollen and other insects.
  • Patent Document 1 describes a drug having an effect of colonizing a predatory fog mite on a crop, a crop treated with the drug to colonize a predatory fog mite, and a method of colonizing a predatory fog mite on a crop using the drug. Is not listed at all. Further, Patent Document 1 does not describe at all about establishing predatory mosquito mite on tomatoes and cherry tomatoes, which are crops in which gabrid mite is difficult to settle.
  • Non-Patent Document 1 Biological control by predatory fog mites started in Europe and the United States in the 1960s, and is now practiced in IPM (Integrated Pest Management) on a global scale.
  • IPM Integrated Pest Management
  • Swarsky Kaburidani, Miyako Kaburidani, Limonica Kaburidani, Kukumerisukaburidani, and Kiikaburidani are registered as pesticides and are being used for institutional cultivation of vegetables and the like.
  • predatory folk mites generally have low adaptability to tomatoes and cherry tomatoes, and it is difficult to maintain the density after release, so that a sustainable control effect cannot be expected in many cases (see, for example, Non-Patent Document 1).
  • the present invention can effectively suppress damage caused by pests by solving the above-mentioned problems of the prior art, creating a state of crops in which natural enemy organisms of pests are likely to settle, and providing a sustainable control effect by natural enemy organisms. It is an object of the present invention to provide a method for treating chemicals and crops in which natural enemy organisms are easily established.
  • jasmonic acid compounds have an effect of colonizing natural enemy organisms of pests in crops, and have completed the present invention.
  • the agent of the present invention is an agent used for colonizing a natural enemy organism of a pest on a plant body, and is characterized by containing a jasmonic acid compound.
  • a drug containing a jasmonic acid compound natural enemy organisms such as predatory mosquito mites can be colonized in plants. This is because by using a drug containing a jasmonic acid compound in the plant body, the plant body produces and secretes substances preferable for the habitation of natural enemy organisms such as predatory mosquito mites, and the surface of the plant body is predatory mosquito mites and the like. It is thought that this is because it becomes an environment for natural enemy creatures.
  • the jasmonic acid compound is methyl jasmonate and / or n-propyldihydrojasmonate. If the jasmonic acid compound is methyl jasmonate and / or n-propyldihydrojasmonate, the predatory fog mite can be well established in the plant.
  • the plant body of the present invention is characterized in that the above-mentioned agent of the present invention is allowed to act on it.
  • the above-mentioned agents By allowing the above-mentioned agents to act, it is possible to create a state in which predatory fog mites can settle.
  • the predatory fog mite is established in the plant body of the present invention. If the predatory fog mite is established, pests can be controlled.
  • the above-mentioned plant body is produced by using a method for producing a plant body, which comprises a step (A) of allowing the above-mentioned agent of the present invention to act on the plant body and a step (B) of releasing a predatory fog mite. obtain.
  • the method for controlling pests of the present invention is characterized by including a step (A) of allowing the above-mentioned agent of the present invention to act on a plant and a step (B) of releasing a predatory fog mite.
  • Pests can be controlled by allowing the above-mentioned chemicals to act to create a state in which the predatory mosquito mite can settle, and by releasing and fixing the predatory mosquito mite.
  • examples of the plant include fruits and vegetables, vegetables, flowers and fruits.
  • plants belonging to the family Brassicaceae for example, tomatoes, eggplants, peppers, paprika, capsicum, petunia, teriminoinuhozuki, and potatoes
  • plants belonging to the family Brassicaceae for example, green beans, soramame) , Azuki, soybean, sardine, and pea
  • plants belonging to the family Rosaceae eg, marigold, gobo, shungiku, lettuce, kiku, gerbera, and cineraria
  • plants belonging to the family Brassicaceae eg, hakusai, cabbage, etc.
  • plants belonging to the family Cruciferae eg, cucumber, pumpkin, watermelon, melon, gourd, hechima, and zucchini, etc.
  • plants belonging to the family Rosaceae eg, cucumber, pumpkin
  • examples of plant pests include spider mites, thrips and whiteflies.
  • establishing" a natural enemy organism on a plant means satisfying at least one of the following conditions (1) and (2).
  • natural enemy organisms that are predatory mite such as Thrips palmi Karny, Thrips palmi Karny, Thrips palmi Karny, Thrips palmi Karny, Thrips palmi Karny, Predatory mite, Predatory mite, etc.
  • pests such as spider mites, thrips, and whiteflies.
  • a method for establishing a predatory fog mite on a plant such as tomato or cherry tomato Further, plants such as tomatoes and cherry tomatoes on which predatory fog mites have been established are provided.
  • the agent of the present invention is used for colonizing a natural enemy organism of a pest on a plant body, and is required to contain a jasmonic acid compound.
  • methyl jasmonate and n-propyldihydrojasmonate are preferable.
  • Methyl jasmonate and n-propyl dihydrojasmonate may each contain at least one of four optical isomers, but may be a mixture of two or more.
  • methyl jasmonate and n-propyldihydrojasmonate are mixtures of four optical isomers, respectively.
  • a jasmonic acid compound preparation is a drug containing a jasmonic acid compound prepared so as to make the jasmonic acid compound suitable for acting on plants such as fruits and vegetables, vegetables, flowers or fruits.
  • the dosage form of the jasmonic acid compound preparation is not particularly limited.
  • Examples of the dosage form include liquids, wettable powders, granular wettable powders, emulsions, suspensions, powders, flowables, dispersants, granules, pastes, aerosols and the like. preferable.
  • the jasmonic acid compound preparation may contain only a jasmonic acid compound such as methyl jasmonate and / or n-propyldihydrojasmonate, but further contains other active ingredients and / or a pesticide-acceptable carrier and the like. Therefore, it may be formulated in the above-mentioned dosage form.
  • the jasmonic acid compound preparation may further contain a surfactant and other additives.
  • a carrier used in a jasmonic acid compound preparation is a liquid carrier.
  • the liquid carrier include water; monohydric alcohols such as methanol, ethanol, propanol, isopropanol, 2-butoxyethanol and 1-methoxy-2-propanol; ethylene glycol, diethylene glycol, propylene glycol and hexylene.
  • Polyhydric alcohols such as glycol, polyethylene glycol, polypropylene glycol and glycerin; ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone and diisobutyl ketone; ethers such as ethyl ether, ethylene glycol monoethyl ether and dipropyl ether; benzene, Aromatic hydrocarbons such as toluene and xylene; esters such as ethyl acetate and dimethyl adipate (excluding jasmonic acid esters); lactones such as ⁇ -butyrolactone; amides such as dimethylformamide, diethylformamide and dimethylacetamide Classes; nitriles such as acetonitrile; vegetable oils such as soybean oil, rapeseed oil, cottonseed oil and castor oil; and the like. These may be used alone or in combination of two or more.
  • the jasmonic acid compound preparation may contain various surfactants commonly used in the preparation.
  • the type of the surfactant is not particularly limited, and examples thereof include nonionic surfactants, cationic surfactants, anionic surfactants and amphoteric surfactants, and among them, nonionic surfactants are preferable.
  • Nonionic surfactants include, for example, polyoxyalkylene-based nonionic surfactants such as polyoxyethylene monoalkyl ethers and polyoxyethylene monoaryl ethers; higher fatty acid esters of polyhydric alcohols (eg, sorbitan and sorbitol); In addition, ethylene oxide is polymerized and added to a higher fatty acid ester of a polyhydric alcohol; and the like. These may be used alone or in combination of two or more.
  • the jasmonic acid compound preparation may contain a solid carrier such as a clay mineral (for example, talc) or lime carbonate; an active ingredient decomposition inhibitor; and a spreading agent or a fixing agent; ..
  • the jasmonic acid compound preparation may contain a fungicide and / or a plant growth regulator and the like.
  • a preferable example of the jasmonic acid compound preparation is a liquid preparation, and the lower limit of the concentration of the jasmonic acid compound such as methyl jasmonate and / or n-propyldihydrojasmonate is preferably 1% by mass or more, preferably 2% by mass. More preferably, it is more preferably 3% by mass or more, and particularly preferably 4% by mass or more.
  • the upper limit of the concentration of the jasmonic acid compound such as methyl jasmonate and / or n-propyldihydrojasmonate is preferably 20% by mass or less, more preferably 16% by mass or less, and 10% by mass.
  • This liquid agent preferably contains water, more preferably contains water and monohydric alcohols, and further preferably contains water, monohydric alcohols, and a surfactant.
  • monohydric alcohols ethanol, propanol, isopropanol, 2-butoxyethanol or 1-methoxy-2-propanol are preferable, ethanol, propanol or isopropanol is more preferable, and propanol is further preferable.
  • the weight ratio (water: monohydric alcohols: surfactant) is not particularly limited, but is, for example, 1: 0. .1-2: 0 to 2, preferably 1: 0.5 to 1.5: 0.5 to 1.5, more preferably 1: 0.7 to 1.3: 0.7 to It is 1.3, more preferably 1: 0.8 to 1.2: 0.8 to 1.2.
  • the liquid preparation may be diluted with water or the like, if necessary, so as to obtain a desired application rate.
  • jasmonic acid compound preparation is a liquid preparation containing water, optionally monohydric alcohols, and optionally a surfactant, as described above, wherein the concentration of the jasmonic acid compound is, for example, It is 40 ⁇ M or more, preferably 80 ⁇ M or more, for example, 2000 ⁇ M or less, preferably 1200 ⁇ M or less. Jasmonic acid compound preparations with a concentration of jasmonic acid compounds in this range can be directly sprayed on the target plant without adjusting the concentration, or irrigated to the root of the target plant and applied to the root system of the target plant. can do.
  • Plants to which the drug is applied include plants such as crops that are damaged by pests such as spider mites, thrips and whiteflies.
  • Typical plants are plants belonging to the Solanaceae family (eg, tomatoes, eggplants, peppers, paprika, capsicum, petunia, teriminoinuhozuki and potatoes, etc.) and plants belonging to the legume family (eg, green beans, soramame, azuki, soybean).
  • Solanaceae and Peas etc.
  • Plants belonging to the family Solanaceae eg, Marigold, Gobo, Shungiku, Lettuce, Kiku, Gerbera and Cinellaria, etc.
  • Plants belonging to the Brassicaceae family eg, Hakusai, Cabbage, Daikon, Cub, Komatsuna, etc.) Broccoli, Chingensai and Stock, etc.
  • Solanaceae plants eg, cucumber, pumpkin, watermelon, melon, gourd, Hechima and Zucchini, etc.
  • Rosaceae plants eg, roses, strawberries, apples, pears, etc.
  • Pear peach, and nightshade, etc.
  • tomatoes and cherry tomatoes are highly effective by using the agent of the present invention because the predatory mosquito mite, which is a natural enemy of the above pests, does not have good colonization.
  • the effect on the colonization of natural enemy organisms may differ slightly depending on the plant variety, but in the present invention, the plant variety is not particularly limited.
  • the plant to which the drug is applied is preferably a growing plant (ie, a plant that is not a seed, a post-harvest plant, etc.), more preferably a cultivated plant, and is cultivated in a closed space. It may be preferable that the plant is a plant.
  • the closed space includes, for example, a space such as a greenhouse or a plant factory in which the internal environment is artificially controlled by being shielded from the outside air.
  • the growth stage of the target plant is not particularly limited.
  • Natural enemy organisms should be selected according to the pests to be controlled. For example, when the pests are spider mites, thrips and whiteflies, the natural enemy organisms include predatory mites. Of these, Swarsky mite, Miyako mite, Limonica mite, Predatory mite and Predatory mite are preferred. Some predatory fog mites are commercially available, for example, Spical EX (registered trademark, Arista Life Science Co., Ltd.), Spical Plus (registered trademark, Arista Life Science Co., Ltd.), Swarsky (registered trademark, Arista Life).
  • the production of a plant in which a natural enemy organism is colonized using the agent of the present invention and the control of pests using the agent of the present invention are preferably the steps (A) of allowing the agent of the present invention to act on the plant. This can be achieved by carrying out the step (B) of releasing a natural enemy organism such as a predatory mosquito mite after the step (A).
  • the method for treating the target plant using the jasmonic acid compound preparation is not particularly limited.
  • the above-mentioned jasmonic acid compound preparation is sprayed on the target plant, or jasmonic acid is applied to the root system of the target plant.
  • Examples thereof include a method of applying a compound preparation and absorbing it from the root system.
  • the concentration of the jasmonic acid compound when the jasmonic acid compound preparation is allowed to act is not particularly limited, but at the time of use, it is preferably, for example, 40 ⁇ M or more, preferably 80 ⁇ M or more, and for example, 2000 ⁇ M, if necessary. Hereinafter, it may be preferably 1200 ⁇ M or less. When the concentration of the jasmonic acid compound is high, it is preferable to adjust the concentration with a solvent such as water so that the concentration is within this range.
  • the jasmonic acid compound is preferably 5 g / 10a (R) or more, more preferably 10 g / 10a (R) or more, preferably 100 g / 10a (R) or less, more preferably 50 g / 10a (R) or more. ) It is preferable to spray at the following spraying amount per unit area.
  • the application of the jasmonic acid compound preparation may be a full-scale application to the target plant body, or targets a part of the target plant body (for example, leaves, buds, flowers or stems where natural enemy organisms are to be established). It may be a local spraying.
  • the concentration of the jasmonic acid compound is preferably about 400 to 2000 ⁇ M.
  • the concentration of the jasmonic acid compound is high, it is preferable to adjust the concentration with a solvent such as water so that the concentration is within this range.
  • the number of times the target plant is treated with the jasmonic acid compound preparation is not particularly limited, but if it is desired to establish the natural enemy organism for a long period of time, it is effective to repeatedly treat the plant after a certain period of time. Treatment is preferably performed at intervals of 3 to 10 days.
  • the time to treat the target plant with the jasmonic acid compound preparation is preferably before releasing the natural enemy organisms, but it is effective even after releasing the natural enemy organisms.
  • the colonization of a natural enemy organism on a plant is carried out, for example, by releasing the natural enemy organism against the pests of the plant to the plant treated with the jasmonic acid compound preparation. It is preferable that the natural enemy organisms are released after the plant is treated with the jasmonic acid compound preparation, but it may be carried out before the plant is treated with the jasmonic acid compound preparation. Natural enemy organisms such as predatory mosquito mites may be released as they are from the bottle containing the natural enemy organisms, or the mouth of the bottle containing the natural enemy organisms may be opened to open the cultivation area (for example, the root of the plant, the side of the cultivation pot). Etc.) may be left unattended.
  • natural enemy organisms such as predatory fog mites may be sprinkled on the plant body. It is preferable to appropriately select suitable conditions for the time when the natural enemy organisms are released, the density of the natural enemy organisms to be released, and the like, depending on the type of plant, the growing time, the type of the natural enemy organisms, and the like.
  • Example 1 In a greenhouse maintained at a room temperature of 20 to 25 ° C, 42 tomato (variety: CF Momotarou Haruka) plants placed at intervals of about 30 cm for 3 weeks after sowing were divided into 6 groups of 7 individuals each and 3 groups. Only 21 plants were sprayed with a jasmonic acid compound preparation containing 400 ⁇ M n-propyldihydrojasmonate (PDJ) at intervals of 6 to 8 days three times over the above-ground part of the plants. Water was sprayed on the plants of 21 individuals in the other 3 sections in the same manner to control them. The day after the final spraying, the Swarsky mosquito mite preparation was sprayed so that the number of Swarsky mosquito mite was 20 per plant.
  • PDJ n-propyldihydrojasmonate
  • Swarsky mosquito mite Six days after spraying the Swarsky mosquito mite preparation, Swarsky mosquito mite was counted for 5 out of 7 strains in each group. When the jasmonic acid compound preparation was sprayed three times, 0.33 adult Swarsky mosquito mites (1 per 15 strains) and 2.33 larvae (7 per 15 strains) per 5 tomato strains, for a total of 2.66. Heads (8 per 15 strains) were found. On the other hand, in the control, no established Swarsky Kaburidani was observed. In the plots where the jasmonic acid compound preparation was sprayed, it was shown that adults spawned and became larvae and settled.
  • Example 2 In a greenhouse kept at room temperature of 20 to 25 ° C, 6 tomatoes (variety: CF Momotarou Haruka) planted in separate 6 cm pots 57 days after sowing were divided into 3 plants, one of which. A jasmonic acid compound preparation containing 400 ⁇ M PDJ was sprayed on the entire above-ground part of the plant body by a spraying device twice at 7-day intervals. Water was sprayed on the other three plants in the same manner to control them. Six days after the second spraying, the predatory mite preparation was sprayed so that the number of predatory mite was 10 per plant, and all the plants were placed in an artificial meteorological instrument with a humidity of 80%, light irradiation for 16 hours, and darkness for 8 hours.
  • Example 3 In a greenhouse kept at room temperature of 20 to 25 ° C, 6 tomatoes (variety: CF Momotarou Haruka) planted in separate 6 cm pots 24 days after sowing were divided into 3 plants, one of which was divided into 3 plants. A jasmonic acid compound preparation containing 400 ⁇ M PDJ was sprayed on the entire above-ground part of the plant by a spraying device three times at intervals of 3 to 5 days. Water was sprayed on the other three plants in the same manner to control them.
  • the Miyakokaburidani preparation was sprayed so that the number of Miyakokaburidani was 10 per plant, and all the plants were placed in an artificial meteorological instrument with a humidity of 80%, light irradiation for 16 hours, and darkness for 8 hours. It was. At this time, two leaves were developed in the tomato plant. Miyako Kaburidani was counted 4 days after being placed in the artificial meteorological instrument. In the case where the jasmonic acid compound preparation containing PDJ was sprayed three times, two Miyakokaburidani were established in every three tomato strains. On the other hand, in the control, no colonized Miyakokaburidani was observed.
  • Example 4 The same test as in Example 3 was carried out using Limonica scabrider mite instead of Miyako mosquito mite. In the case where the jasmonic acid compound preparation containing PDJ was sprayed three times, one Limonica scabridan was established in every three tomato strains. On the other hand, in the control, no established Limonica scabridan was observed.
  • Example 5 In a greenhouse maintained at room temperature of 20 to 25 ° C., 12 individual tomatoes (variety: CF Momotarou Haruka) planted in separate 6 cm pots 57 days after sowing, control (3 strains), PDJ 800 ⁇ M. It was divided into four groups: a jasmonic acid compound preparation treatment containing (3 strains), a jasmonic acid compound preparation treatment containing 400 ⁇ M PDJ (3 strains), and a jasmonic acid compound preparation treatment containing 200 ⁇ M PDJ (3 strains). For each treatment group, a jasmonic acid compound preparation containing PDJ at the described concentration was sprayed twice at 7-day intervals over the entire above-ground part of the plant body.
  • Example 6 In a greenhouse kept at room temperature of 20 to 25 ° C, 12 individual tomatoes (variety: CF Momotarou Haruka) planted in separate 6 cm pots 57 days after sowing were used as controls (3 strains) and jasmonic acid. Divided into four groups: jasmonic acid compound preparation treatment containing 400 ⁇ M of methyl (JA) (3 strains), jasmonic acid compound preparation treatment containing 200 ⁇ M JA (3 strains), and jasmonic acid compound preparation treatment containing 100 ⁇ M JA (3 strains). It was. For each treatment group, a jasmonic acid compound preparation containing JA at the described concentration was sprayed twice at 7-day intervals over the entire above-ground part of the plant body.
  • jasmonic acid compound preparation treatment containing JA at the described concentration was sprayed twice at 7-day intervals over the entire above-ground part of the plant body.
  • Example 7 In a greenhouse kept at room temperature of 20 to 25 ° C, 6 tomatoes (variety: CF Momotarou Haruka) planted in separate 6 cm pots 57 days after sowing were divided into 3 plants, while each was divided into 3 plants. 25 mL of a jasmonic acid compound preparation containing 2000 ⁇ M PDJ was irrigated at the root of the plant body of the three individuals. The other three plants were irrigated with water in the same manner for control.
  • the Swarsky mosquito mite preparation was sprayed so that the number of Swarsky mosquito mites was 10 per plant, and all the plants were placed in an artificial meteorological instrument with a humidity of 80%, light irradiation for 16 hours, and darkness for 8 hours. It was. At this time, three leaves were developed in the tomato plant. Swarsky Kaburidani was counted 3 days after being placed in the artificial meteorological instrument. In the one-time irrigation of the jasmonic acid compound preparation containing PDJ, two Swarsky mosquito mites were established in every three tomato strains. On the other hand, in the control, no established Swarsky Kaburidani was observed.
  • natural enemy organisms that are predatory mite such as Thrips palmi Karny, Thrips palmi Karny, Thrips palmi Karny, Thrips palmi Karny, Thrips palmi Karny, Predatory mite, Predatory mite, etc.
  • pests such as spider mites, thrips, and whiteflies.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Botany (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

La présente invention concerne un agent pharmaceutique capable de supprimer efficacement les dommages causés par des organismes nuisibles, par création d'une condition de culture dans laquelle un ennemi naturel de l'organisme nuisible peut facilement coloniser la culture, ce qui permet d'obtenir un effet de lutte continu contre les organismes nuisibles produit par l'ennemi naturel. La présente invention concerne également un procédé de traitement des cultures sur lesquelles l'ennemi naturel peut facilement coloniser. Un agent pharmaceutique selon la présente invention est utilisé lorsqu'on amène un ennemi naturel d'un organisme nuisible à coloniser un corps végétal, et comprend un composé d'acide jasmonique. Un procédé de production d'un corps végétal selon la présente invention comprend une étape (A) pour permettre à un agent pharmaceutique contenant un composé d'acide jasmonique d'agir sur un corps végétal, et une étape (B) pour libérer les Phytoseiidae prédateurs.
PCT/JP2020/037664 2019-10-18 2020-10-02 Agent pharmaceutique pour amener l'ennemi naturel d'un organisme nuisible à coloniser des cultures, et procédé pour amener l'ennemi naturel d'un organisme nuisible à coloniser des cultures WO2021075283A1 (fr)

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