WO2009104770A1 - Plant for agent volatilization - Google Patents

Abstract

Provided are a plant for agent volatilization by which an agent containing a target active ingredient can be highly sustainably volatilized, a method of producing the same, a carrier for preparing the above plant, a method of agent volatilization and an insect pest controlling agent. A plant for agent volatilization constructed by bringing at least a part of a plant into contact with a carrier which carries an agent containing a target active ingredient so as to volatilize the above-described agent from the above-described plant, characterized in that the above-described carrier is a liquid or solid in which the above-described agent is dissolved. A liquid or solid carrier, which carries an agent containing a target active ingredient, to be used in preparing the plant for agent volatilization as described above. A method of producing a plant for agent volatilization using the carrier as described above. A method of agent volatilization and an insect pest controlling agent each using the plant for agent volatilization as described above.

Description

Plant for chemical volatilization

The present invention relates to a chemical volatilization plant, a method for producing the plant, a carrier for preparing the plant, a chemical volatilization method, and a pest control agent.

As a means for controlling indoor pests, various types have been proposed. Examples include aerosol pest control agents, mosquito-removing mats, liquid mosquito-removing liquids, mosquito-removing incense sticks, smoke smoke transpiration agents, and blower-type mosquito repellents. However, these means require an aerosol device, a heat evaporation device, a blower device, and other power sources and heat sources, and thus have disadvantages such as an increase in manufacturing cost and attention to handling. In addition, there are many drugs that control plants by harmful insects.

On the other hand, Patent Document 1 below proposes a method of volatilizing a medicine in which a suspension of an insect repellent is sucked up by a cut flower and the medicine is volatilized indoors through the cut flower. However, in the technique of Patent Document 1, since it is a suspension, the volatilization persistence of the drug cannot be obtained, and the practicality is poor.
Japanese Patent Laid-Open No. 10-182305

Accordingly, an object of the present invention is to provide a chemical volatilization plant that can volatilize a drug containing the target active ingredient with a sustained manner, a method for producing the plant, a carrier for preparing the plant, a method for volatilizing the drug, and a pest. It is to provide a control agent.

The present invention is as follows.
1. A chemical volatilization plant configured to bring at least a part of a plant into contact with a carrier containing a drug containing a target active ingredient and volatilize the drug from the plant, wherein the carrier Is a liquid in which the drug is dissolved.
2. A chemical volatilization plant configured to bring at least a part of a plant into contact with a carrier containing a drug containing a target active ingredient and volatilize the drug from the plant, wherein the carrier A plant for chemical volatilization, characterized in that is solid.
3. 2. A liquid carrier containing a drug containing a target active ingredient, which is used for preparing the plant for chemical volatilization described in 1 above.
4). 3. A solid carrier containing a drug containing a target active ingredient, which is used for preparing the chemical volatilization plant according to 2 above.
5). 4. The carrier according to 3 above, wherein the carrier is an aqueous solution of the drug.
6). 5. The carrier according to 4 above, wherein the carrier is natural or artificial soil.
7). 5. The carrier according to 3 or 4 above, wherein the carrier is a fertilizer.
8). A carrier containing a drug containing a target active ingredient is brought into contact with at least a part of the plant so that the drug is volatilized from the plant, and the carrier is a liquid in which the drug is dissolved. A method for producing a chemical volatilization plant characterized by the above.
9. A carrier containing a drug containing a target active ingredient is brought into contact with at least a part of a plant so that the drug is volatilized from the plant, and the carrier is solid. A method for producing a chemical volatilization plant.
10. 3. A method for volatilizing a drug, comprising installing the plant for volatilizing the drug according to 1 or 2 and volatilizing the drug containing the target active ingredient into the indoor space.
11. A pest control agent comprising a carrier comprising a drug containing a target active ingredient, and a plant that is at least partially in contact with the carrier, wherein the carrier is a liquid in which the drug is dissolved. A pest control agent characterized by being configured to volatilize the drug from the plant body.
12 A pest control agent comprising a carrier comprising a drug containing a target active ingredient, and a plant that is at least partially in contact with the carrier, wherein the carrier is solid, and the plant A pest control agent, characterized in that it is configured to volatilize the chemical.

As an active ingredient, a pest control agent will be described as an example. For example, N, N-diethyl-m-toluamide, caran-3,4-diol (1S, 3S, 4S, 6R-caran-3,4-diol) 1S, 3R, 4R, 6R-carane-3,4-diol, etc.), dimethyl phthalate, 2-ethyl-1,3-hexanediol, 2,3,4,5-bis (Δ ² -butylene) tetrahydro Furfural, di-n-propylisocincomeronate, dibutyl succinate, diethyl mandelic acid amide, 2-hydroxyethyl octyl sulfide, 2- (2-hydroxyethyl) -1-piperidinecarboxylic acid 1-methylpropyl, geraniol, citronellal , Eugenol, di-n-butyl succinate and other pest repellent components, allethrin, praretrin, empentrin , Resmethrin, transfluthrin, imiprothrin, tetramethrin, teraleslin, 1-ethynyl-2-fluoro-2-pentenyl 3- (2,2-dichlorovinyl) -2,2-dimethylcyclopropanecarboxylate, metofluthrin, profluthrin, pyri Insecticidal components such as proxyfen, fenitrothion, methoxadiazone, fragrance, and phytoncide.

The carrier of the present invention contains a drug containing the active ingredient as described above, and examples thereof include liquid or solid. When the active ingredient itself is a liquid, it can be used as it is, and a liquid carrier may be used if necessary.

First, a form in which the carrier is a liquid in which the drug is dissolved (hereinafter referred to as a liquid carrier) will be described.
As described above, the liquid carrier of the present invention is a liquid in which a drug is dissolved. Thereby, the absorption efficiency of a plant body is excellent compared with the suspension liquid which the chemical | medical agent is disperse | distributing without melt | dissolving, By extension, the sustainability of volatilization of a chemical | medical agent can be improved.
Examples of the solvent in the liquid carrier include various organic solvents such as water and alcohols.

In the present invention, the liquid carrier is particularly preferably an aqueous solution from the viewpoint of the persistence of volatilization of the drug.
If the drug is sparingly soluble in water, a solubilizer can be incorporated into the liquid carrier.
Examples of the solubilizer include an anionic active agent (for example, sulfonate), a cationic active agent (for example, alkylamine salt, quaternary ammonium salt), and an amphoteric active agent (for example, alkylbetaine). , Nonionic activators (eg, polyoxyethylene alkylphenyl, polyoxyethylene alkyl ether, fatty acid sorbitan ester, polyoxyethylene alkylphenyl ether, polyoxyethylene polyoxypropylene glycol, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor And surfactants having an action of solubilizing or solubilizing oil, etc., amphiphilic substances, and the like. Among these, polyoxyethylene alkylphenyl, polyoxyethylene alkyl ether, polyoxyethylene castor oil, and polyoxyethylene hydrogenated castor oil are preferable.
When the liquid carrier is an aqueous solution, particularly preferred drugs have a vapor pressure of 1 × 10 ⁻⁵ to 1 × 10 ⁰ Pa at 20 ° C., more preferably 1 × 10 ⁻⁴ to 1 × 10 ^−2. Pa, for example, metfurthrin, profluthrin, transfluthrin, empentrin and the like.

Examples of the liquid carrier of the present invention include water, alcohols such as methyl alcohol and ethyl alcohol, ketones such as acetone and methyl ethyl ketone, ethers such as tetrahydrofuran and dioxane, aliphatics such as hexane, kerosene, paraffin and petroleum benzine. Examples thereof include hydrocarbons, aromatic hydrocarbons such as benzene and toluene, esters such as ethyl acetate, and halogenated hydrocarbons such as dichloroethane.
In the liquid carrier of the present invention, the concentration of the drug may be set in consideration of the type of the drug, volatility, solubility in the liquid, etc., for example, preferably in the liquid carrier, preferably 0.005 to 10 mass. %, More preferably 0.01 to 3% by mass.

Next, a form in which the carrier is a solid containing the drug (hereinafter referred to as a solid carrier) will be described.
The type of solid carrier is not particularly limited as long as it can be contacted without adversely affecting the plant body. For example, silicic acid, kaolin, activated carbon, pentonite, diatomaceous earth, talc, clay, calcium carbonate, ceramics Mineral powder such as flour, vegetable powder such as wood flour, soybean flour, wheat flour, starch, etc., inclusion compounds such as cyclodextrin, pulp, water absorption (liquid absorption) polymer, natural soil, artificial soil, fertilizer , Fiber, agar, sponge and the like.
Among these, natural soil, artificial soil, and fertilizer are preferable in the case where the plant of the present invention is installed indoors and grown.
The natural soil may be any naturally occurring soil, and examples thereof include peat moss and coconut glass.
Examples of the artificial soil include pulp, water absorption (liquid absorption) polymer, inorganic porous powder (for example, vermiculite, zeolite, pearlite), aggregate, unglazed powder, and the like, and a mixture thereof.
As fertilizers, for example, ammonium sulfate, urea, ammonium nitrate, lime nitrogen, lime nitrogen superphosphorus, acid lime, heavy phosphate lime, adult phosphorus fertilizer, (heavy) calcined phosphorus fertilizer, sulfuric acid, ammonia and the like are active ingredients. Fertilizer is mentioned. The use of a fertilizer is particularly preferable in terms of growth efficiency and drug absorption efficiency because it contains plant nutrients.
Further, in preparing the solid carrier, for example, tricyclodecane, cyclododecane, 2,4,6-triisopropyl-1,3,5-trioxane, trimethylene norbornene, paradichlorobenzene, naphthalene, A sublimable carrier such as camphor can be used, and the above active ingredients can be melt mixed or mixed and then molded into a sublimable solid agent.
Examples of the dosage form of the solid carrier include gels, microcapsules, and aqueous solvents (solid agents).
In the solid carrier of the present invention, the concentration of the drug may be set by appropriately considering the type of the drug, volatility, etc. For example, in the solid carrier, preferably 0.005 to 10% by mass, more preferably 0. 0.01 to 3% by mass.

Various additives may be added to the liquid carrier and solid carrier of the present invention as necessary. Additives include, for example, solvents, preservatives, plant growth regulators such as gibberellins, gelling agents, extenders, emulsifiers, dispersants, spreading agents, wetting agents, stabilizers, propellants, nitrocellulose, acetylcellulose Cellulose derivatives such as acetylbutyrylcellulose and methylcellulose; Vinyl resins such as vinyl acetate resins; Alkyd resins; Urea resins; Epoxy resins; Polyester resins; Urethane resins; Rubber; Film forming agent such as polyvinyl alcohol; Soaps; Polyoxyethylene fatty alcohol ether such as polyoxyethylene oleyl ether; Polyoxyethylene alkyl aryl ether such as polyoxyethylene nonylphenyl ether; Polyoxyethylene fatty acid ester; Fatty acid Glycerides; Rubitan fatty acid esters; sulfates of higher alcohols; surfactants such as alkylallyl sulfonates such as sodium dodecylbenzene sulfonate; propellants such as liquefied petroleum gas, dimethyl ether and fluorocarbons; casein, gelatin, alginic acid, CMC (carboxymethylcellulose) ) And the like.
In addition, for example, silver thiocyanate, aminooxyacetic acid, aminoethoxyvinylglycine, aminoisobutyric acid, isopropylideneaminooxyacetic acid ester, allocoronamic acid, cispropenylphosphonic acid, aminotriazole, 1-methylcyclopropene, guanidine chloride, sucrose , 8-hydroxyquinoline, citric acid, succinic acid, tartaric acid, water-soluble quaternary ammonium salt polysaccharide, water-soluble quaternary ammonium salt hydroxyalkyl polysaccharide, quaternary ammonium salt polymer, etc., and mixtures thereof Examples include cut flower preservatives.

Examples of the contact between the liquid carrier and the plant include a method in which the root and stem of the plant are brought into contact with the liquid carrier (for example, immersion). Moreover, you may apply | coat a liquid carrier to the leaf surface of a plant body by means, such as a spray. The application amount in this case may be determined as appropriate depending on the type of the drug and the like. For example, 10 to 100 μg is exemplified as the amount of active ingredient per 1 cm ^{2 of} leaf surface.
The contact between the solid carrier and the plant body is, for example, a method such as liquid and / or solid hydroponics in which the plant body is planted in an artificial or natural soil as usual. Moreover, the method of introduce | transducing the fertilizer which is a suitable form of the solid support | carrier of this invention to the normal soil which does not contain a chemical | medical agent is also mentioned.
The contact time between the liquid or solid carrier and the plant body is not particularly limited as long as a desired amount of the chemical is volatilized from the plant body, but is, for example, 1 to 120 hours.

The thus prepared plant for drug volatilization of the present invention volatilizes the drug in the space. That is, the plant body can be used as a medium for chemical volatilization. Volatilization is thought to be done from the whole plant, especially from the leaves and stems of the plant. In addition, volatilization from the plant body as used in the field of this invention means volatilization from the site | parts exposed on the ground other than the root of a plant body.

As a kind of plant body in this invention, a typical thing can be illustrated as follows. For example, gerbera, cineraria, deimorph oceca, dahlia, chrysanthemum, calendula, sunflower, sweet pea, yamafuji, pansy, nadesico, carnation, gypsophila, morning glory, rose, ume, bokeh, sakura, snowy willow, stock, habutton, statice, gentian, lichen , Lily, water lily, scallop lily, scented lily, tulip, alstroemeria, aloe, ornithogalum, hyacinth, gladiolus, freesia, iris, crocus, anigozanthus, narcissus, nerine, amaryllis, aria quail, cinnamon, primula, cycladium, primula Denfare, Cattleya, Paphiopedilum, Phalaenopsis, Oncidium, Kalanchoe, Saint Pauli , Gloxinia, spinach, anemone, ranunculus, button, peonies, bridal veil, color, potos, defenbachia, anthurium, geranium, fuchsia, gypsophila, gardenia, weeping willow, cat willow, hibiscus, poinsettia, bougainvillea, hongonporia gum , Agave, Nanten, Holly Nanten, Azalea, Satsuki, Azalea, Rhododendron, Hydrangea, Camellia, Chrysanthemum, Spray Ginger, Kogiku and the like.
Also, for example, Rubinas (Leguminosae), Papaver (Poaceae), Himekashimugiwort (Asteraceae), Olechinogiiku (Asteraceae), Artemisia (Asteraceae), Selenidae (Asteraceae), Hamasuge (Cryptaceae), Harujion, Himejo , Nogeshi, nazuna, psyllium, swordfish, ragweed, horsetail, sorrel, inuta, clover and the like.

By installing the plant body of the present invention thus obtained, for example, indoors, it is possible to volatilize the medicine containing the target active ingredient indoors, and for example, it is possible to obtain an effective pest control effect. . Moreover, when applied to agricultural crops, by bringing a carrier containing a drug into contact with the crops, the crops can be self-defense against pests, and pest damage can be prevented.

ADVANTAGE OF THE INVENTION According to this invention, the chemical | medical agent volatilization plant which can volatilize the chemical | medical agent containing the target active ingredient with sufficient sustainability, its manufacturing method, the carrier for preparing this plant, the volatilization method of a chemical | medical agent, and pest control An agent can be provided.

It is a figure for demonstrating the experimental apparatus used in Examples 1-3. It is a figure (plan view) for demonstrating the experimental apparatus used in Example 4, 6, and 7. FIG. It is a graph which shows the result of Example 4. FIG. 10 is a diagram for explaining an experimental apparatus used in Example 5. FIG. 10 is a diagram for explaining an experimental apparatus used in Example 5.

The drug used in the present invention is not particularly limited as long as it contains the intended active ingredient, but is preferably one that does not adversely affect the plant body. For example, for indoor use, the above-described pest control is used. In addition to the agents, there are fragrances, deodorants, medical drugs and the like.
For example, when a plant body is brought into contact with a carrier containing an active ingredient such as a fragrance or a deodorant and placed indoors or the like, a sustained effect is obtained by the active ingredient volatilized from the plant body. In addition, for example, an inhalant used for asthma and bronchitis is used as a medical drug, and the plant body is brought into contact with a carrier containing menthol, which is an active ingredient of an inhalant, and is placed near the user. In addition to being able to obtain excellent sustainability due to the active ingredient volatilized from the plant body, it can also be enjoyed visually.

Hereinafter, the present invention will be further described with reference to examples and comparative examples, but the present invention is not limited to the following examples.

Example 1
Preparation of liquid carriers 1 to 3 Liquid carriers 1 to 3 were prepared according to the formulation shown in Table 1 below.

The insecticidal substance used for the liquid carrier 1 was transfluthrin, and the amount used was 0.2 g. The insecticidal substance used for the liquid carrier 2 was metfurthrin, and the amount used was 0.08 g. The insecticidal substance used for the liquid carrier 3 was profluthrin, and the amount used was 0.08 g. A mosquito coil was used for the control. The active ingredient in the mosquito coil was dl · d-T80-alleslin (0.25%).

As the plant body, mugwort and giant peony were used, and the root part was cut off. The plant body (100 g or 200 g) was immersed in each of the liquid carriers 1 to 3. Only the stem portion of the plant body was immersed in a liquid carrier. After leaving for one day, the chemical volatilization plants 1 to 3 of the present invention were obtained.

A glass chamber measuring 70 cm in length, 70 cm in width, and 70 cm in height was prepared, and the chemical volatilization plants 1 to 3 were placed in the container as shown in FIG. 1 (without ventilation). The container was filled with a liquid carrier prepared with plant bodies 1 to 3 for chemical volatilization. In order to prevent volatilization of the active ingredient from the liquid carrier, a lid was formed with a food wrap (film) on the entire opening of the container except for the portion where the plant body was placed in the container.
Wind of the blower (1.4 liter / second) was applied to the chemical volatilization plant body, and 17 female squids were released into the glass chamber, and the values of KT50 and KT90 were calculated. The results are shown in Table 2.
Here, KT50 indicates the time (minutes) required for 50% of the pests to be knocked down, and KT90 indicates the time (minutes) required for 90% of the pests to be knocked down.

As shown in Table 2, KT50 and KT90 of mosquitoes were confirmed under any conditions. As a result, the potency of the chemical volatilization plant 2 using the liquid carrier 2 was high. Furthermore, it was thought that the one where there is much volatilization area of the chemical | medical agent from a plant body has volatilized more chemical | medical agents from the difference in effectiveness depending on the mass of the plant body.

Example 2
A plant similar to that in Example 1 was used. However, no root removal was performed. Using the liquid carrier 2 in Example 1, with respect to 200 g of plant bodies, (1) immersing only the roots in the liquid carrier; (2) replanting the plant bodies into pots (5, diameter 15 cm), and soil (artificial soil) 200g; Hanagokoro Co., Ltd., gardening soil) and leaves are sprayed with 100 ml of liquid carrier on the whole; (3) Plants are replanted in pots (5, diameter 15 cm), soil (artificial soil 200 g; The pest control agent 1 to 3 of the present invention comprising each carrier and the treated plant body was obtained by spraying 100 ml of the liquid carrier only on Hanagokoro Co., Ltd., gardening soil). Any of the pest control agents 1 to 3 was placed in the glass chamber used in Example 1, and the same test as in Example 1 was performed. In addition, in order to prevent volatilization of the active ingredient from the liquid carrier, the pest control agent 1 of the above (1) is the same as in Example 1, except for the arrangement part of the plant body in the container, over the entire opening of the container. A lid was formed with food wrap. In addition, for the pest control agents 2 and 3 of the above (2) and (3), a lid was formed on the entire pot opening with food wrap, except for the arrangement part of the plant body in the pot. The wind of the blower (1.4 liter / second) was applied to the chemical volatilization plant, and 17 female squids were released into the glass chamber. After one day, the values of KT50 and KT90 were calculated. The results are shown in Table 3.

As shown in Table 3, the effectiveness of the pest control agent was confirmed in any of the pest control agents 1 to 3.

Example 3
In Example 2, the pest control agent 2 was put in a glass chamber, and after 5, 7, 10, 11, 14, 20, 25, 31 days, 17 female squids were released into the glass chamber, and KT50 and KT90 were calculated. did. The glass chamber was stored in a 25 ° C. draft. The results are shown in Table 4 (note that KT50 and KT90 after 1 day are also shown in the same manner as in Example 2).

As shown in Table 4, the effect began to drop 10 days after the treatment, and after 31 days the KT value decreased considerably, but the effect on mosquitoes was not lost. Moreover, although it was limited indoors, it turned out that the effect with respect to a mosquito lasts at least about one month.

Example 4
As a plant body, mugwort and giant peony were used. The mass of the plant per pot was about 100 g. In the No. 5 pot, 200 g of artificial soil (Horokoro Co., Ltd., horticultural soil) is put as soil, and 100 g of the plant is planted, and it is tested in two pots (100 g of plant per pot is used in two pots). used. Hereinafter, this is referred to as a sample.
Next, treatment liquids 1 to 4 were prepared. The treatment liquids 1 to 4 were prepared using the liquid carrier formulation of Example 1, but the insecticidal ingredients in Table 1 were set as follows.
Treatment liquid 1: Metofluthrin 0.08 g
Treatment liquid 2: Metofluthrin 0.06 g and Profluthrin 0.04 g
Treatment solution 3: Metofluthrin 0.04 g and Profluthrin 0.06 g
Treatment liquid 4: Profluthrin 0.1 g

Next, the following test sections 1 to 7 were set.
Test group 1: Spray 50 ml of the treatment solution 1 on the leaves and soil of the sample, and leave it for a day.
Test group 2: Spray 50 ml of the treatment liquid 2 on the leaves and soil of the sample by spraying, and leave it for one day.
Test group 3: 50 ml of the treatment solution 3 is sprayed on the leaves and soil of the sample by spraying and left for a day.
Test group 4: 50 ml of the treatment solution 4 is sprayed on the leaves and soil of the sample by spraying and left for one day.
Test group 5: Spray 50 ml of the treatment liquid 2 on the sample soil only and leave it for one day.
Test group 6: The treatment solution 1 is sprayed on the leaves and soil of the sample with 50 ml of spray, and left for 25 days.
Test group 7: Further, the treatment liquid 2 is sprayed on the treated sample in the test group 5 only on the soil by spraying 50 ml (total 100 ml).

As shown in FIG. 2, a 12 tatami room with a ventilator was partitioned, and an air blower (174 liters / second), any sample or person in each test area was placed. 50 females of Aedes albopictus were released at the position shown in FIG. Counted the number of mosquitoes landing on both hands and feet (with clothes on). Based on the control (the test that does not use the sample of each test section) (repellency rate 0%), the repellent rate of human striped mosquito [repellent rate (%) = (1-the number of mosquito landing when the sample is installed / control mosquito Landing number) × 100] was calculated for each elapsed time. The results are shown in Table 5 and FIG.

As shown in Table 5 and FIG. 3, in the test groups 1 to 4, the treatment solution was treated with the leaves and soil of the sample, and thus immediate effect was recognized. Moreover, the example using profluthrin as an insecticidal substance resulted in a high repellent rate of rising. Profluthrin was considered to have such a result because of its higher volatility. In test group 6, the sample was treated with 50 milliliters of the treatment solution 1 on the leaves and soil of the sample and allowed to stand for 25 days, but after 20 minutes, a high repellent effect was observed. Further, even when the treatment liquid was treated only on the soil as in the test sections 5 and 7, a sufficient effect was exhibited after about 30 minutes.

Example 5
As a plant body, mugwort and giant peony were used. The mass of the plant body per one was about 100 g. As shown in FIG. 4 (A), 200 g of artificial soil (manufactured by Hanagoro Co., Ltd., horticultural soil) was put in the No. 5 pot, and the two plants were planted from the root.
Next, a treatment liquid was prepared. The treatment liquid used was the formulation of the liquid carrier of Example 1, but the insecticidal substances in Table 1 were 0.06 g of metfurthrin and 0.04 g of profluthrin. In order to prevent volatilization of the active ingredient as shown in FIG. 4 (C), wrap and aluminum foil are sprayed on the part indicated by the dotted line in FIG. The plant surface and the pot part of the lower part were covered with, and only the part of the plant body that was not touched by the drug was exposed and used as a specimen.

A glass chamber having a length of 70 cm, a width of 70 cm, and a height of 70 cm was prepared. As shown in FIG. 5, the specimen was arranged at the approximate center in the glass chamber (without ventilation).
The air of the blower was applied to the specimen (1.4 liters / second), and 17 female squids were released into the glass chamber, and the values of KT50 and KT90 were calculated. The results are shown in Table 6.

As shown in Table 6, KT50 and KT90 of mosquitoes were confirmed. In Example 5, as shown in FIG. 4 (B), the drug is treated only in the lower part of the plant body. At the time of the test, the upper part of the plant body not touched by the drug as shown in FIG. 4 (C). It was only exposed in the space. Therefore, it was thought that knockdown of mosquitoes was confirmed by the transfer of the chemicals treated on the body surface of the plant body to the other body surface and volatilization.

Example 6
The same plant as in Example 5 was used. As shown in FIG. 2, a 12 tatami room with a ventilator was partitioned, and the air blower (174 liters / second), the specimen and the person produced in Example 5, were placed. 50 females of Aedes albopictus were released at the position shown in FIG. Counted the number of mosquitoes landing on both hands and feet (with clothes on). Control (test with untreated specimen) as standard (repellency rate 0%), repellent rate of Aedes albopictus [repellency rate (%) = (1-number of mosquito landing with sample installed / number of control mosquito landing) ) × 100] was calculated for each elapsed time. The results are shown in Table 7.

As shown in Table 7, the repellent effect at the rise was slightly slow, but a high repellent effect was confirmed from around 30 minutes after the start of the test. It was thought that the repellent effect against mosquitoes was confirmed because the chemicals treated on the body surface of the plant body migrated to the other body surface of the plant body and volatilized.

Example 7
Preparation of Solid Carrier 10 g of the formulation shown in Table 8 below was impregnated in 50 g of pearlite which is a solid carrier. The pearlite treated with the drug was dried at 40 ° C. for 8 hours, and then 50 g was mixed with 150 g of artificial soil (Hanagokoro Co., Ltd., gardening soil). 200 g of artificial soil blended with the solid carrier was placed in a No. 5 pot, planted with oleander and mugwort (two each, 100 g), and treated with 50 ml of water as a specimen.

As shown in FIG. 2, a 12 tatami room with a ventilator was partitioned, and a blower (174 liters / second), the above-prepared specimen, and a person were arranged. 50 females of Aedes albopictus were released at the position shown in FIG. Counted the number of mosquitoes landing on both hands and feet (with clothes on). Control (test with untreated specimens) as standard (repellency rate 0%), repellent rate of human striped mosquitoes [repellency rate (%) = (1-number of mosquito landings when specimens are installed / number of control mosquito landings) ) × 100] was calculated for each elapsed time. The results are shown in Table 9.

As shown in Table 9, the repellent effect on the rising mosquitoes was slightly low, but the repellent effect increased from around 50 minutes after the start of the test, and almost 100% was repelled after 1 hour. From this, it was found that even when a solid carrier treated with a drug is mixed with soil, the drug can be sucked up from the root and volatilized from the surface of the plant body to avoid mosquitoes.

Example 8
Preparation of Liquid Carrier 4 Liquid carrier 4 (perfume aqueous solution) was prepared according to the formulation shown in Table 10 below.

The fragrance used for the liquid carrier 4 is a mixture of 5.26 g of dl-camphor, 4.68 g of turpentine, 2.82 g of l-menthol, and 1.33 g of eucalyptus oil.

Mini roses (Rosaceae) and rubinas (Leguminosae) were used as plants. In a No. 5 pot, 200 g of artificial soil (manufactured by Hanagokoro Co., Ltd., gardening soil) was added as soil, and the plant bodies were planted from the roots. By spraying 100 ml of the liquid carrier 4 over the entire soil surface with a spray, the chemical volatilization plants 4 and 5 of the present invention were obtained. In addition, except the arrangement | positioning part to the pot of a plant body, the soil surface and the whole pot were covered with the food wrap and aluminum foil, and the clearance gap was completely plugged up with the cloth tape.
Among the formulations shown in Table 10, a control prepared by spraying a plant body using a solution prepared by a formulation excluding a fragrance was used.
After leaving for one day, the plant for chemical volatilization 4 and 5 and the control were placed in a box 20 cm long x 20 cm wide x 20 cm high, respectively, and after filling the smell, eight panelists used the chemical volatilization plant of the present invention. The presence or absence of a fragrance difference between the bodies 4 and 5 and the control was confirmed.

All of the eight panelists clearly showed a fragrance and aroma compared to the control, both of the plant 4 for drug volatilization applying the liquid carrier 4 to mini roses and the plant 5 for drug volatilization applying the liquid carrier 4 to rubinas. I felt that I felt the difference. Specifically, regarding the plant 4 for chemical volatilization, three panelists evaluated that the smell was stronger than the control, and three panelists evaluated that the smell of camphor was. And about the plant body 5 for chemical volatilization, it evaluated that three panelists felt a strong smell compared with control.

From the above results, it is considered that the fragrance of the plant body is clearly changed by treating the liquid carrier mixed with the fragrance on the soil surface, and the fragrance contains the component of the fragrance. Therefore, it turned out that a plant body absorbs a fragrance | flavor component from a root and volatilizes it from a leaf and a stem.

This application is based on a Japanese patent application filed on February 22, 2008 (Japanese Patent Application No. 2008-041275), the contents of which are incorporated herein by reference.

According to the present invention, since a drug containing the target active ingredient can be volatilized with good sustainability, a pest control agent (repellent agent), insecticide, and fragrance can be used indoors without harming the plant body. Deodorizers, medical drugs and the like can be volatilized, and can be used for daily necessities, cosmetics, medical drugs, general drugs, agricultural chemicals and the like.

Claims (12)

A chemical volatilization plant configured to bring at least a part of a plant into contact with a carrier containing a drug containing a target active ingredient and volatilize the drug from the plant, wherein the carrier Is a liquid in which the drug is dissolved. A chemical volatilization plant configured to bring at least a part of a plant into contact with a carrier containing a drug containing a target active ingredient and volatilize the drug from the plant, wherein the carrier A plant for chemical volatilization, characterized in that is solid. A liquid carrier containing a drug containing a target active ingredient, which is used to prepare the chemical volatilization plant according to claim 1. A solid carrier comprising a drug containing a target active ingredient, which is used for preparing the chemical volatilization plant according to claim 2. The carrier according to claim 3, wherein the carrier is an aqueous solution of the drug. The carrier according to claim 4, wherein the carrier is natural or artificial soil. The carrier according to claim 3 or 4, wherein the carrier is a fertilizer. A carrier containing a drug containing a target active ingredient is brought into contact with at least a part of the plant so that the drug is volatilized from the plant, and the carrier is a liquid in which the drug is dissolved. A method for producing a chemical volatilization plant characterized by the above. A carrier containing a drug containing a target active ingredient is brought into contact with at least a part of a plant so that the drug is volatilized from the plant, and the carrier is solid. A method for producing a chemical volatilization plant. A method for volatilizing a drug, comprising installing the plant for volatilizing the drug according to claim 1 or 2 and volatilizing the drug containing the target active ingredient into the indoor space. A pest control agent comprising a carrier comprising a drug containing a target active ingredient, and a plant that is at least partially in contact with the carrier, wherein the carrier is a liquid in which the drug is dissolved. A pest control agent characterized by being configured to volatilize the drug from the plant body. A pest control agent comprising a carrier comprising a drug containing a target active ingredient, and a plant that is at least partially in contact with the carrier, wherein the carrier is solid, and the plant A pest control agent, characterized in that it is configured to volatilize the chemical.

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