JP5898662B2 - Terrestrial gastropod repellents and methods for repelling land and gastropods - Google Patents

Description

  The present invention relates to a land repellent repellent and a land repellent repellent method such as slugs and snails.

  Terrestrial gastropods, such as slugs and snails, can damage new shoots and flower buds of plants and transmit pathogenic protozoa, and have been traditionally targeted for extermination and repelling. For this reason, various methods for extinguishing and avoiding land and gastropods have been studied.

  Conventionally, granular bait preparations containing methaldehyde as an active ingredient have been generally used as a land and gastropod pesticide. However, bait preparations need to be eaten by terrestrial gastropods, so in order to prevent damage to plant shoots and flower buds, a large amount of bait preparations must be sprayed, and exterminated terrestrial gastropods are scattered around the bait preparations Therefore, there are drawbacks that the appearance is unsanitary and that there is a great discomfort such as ants coming to the bait agent.

  On the other hand, as an active ingredient of land repellent repellents, those that generate copper ions such as copper compounds such as metallic copper, copper sulfate, copper hydroxide, cuprous oxide, copper nitrate, copper chloride (Patent Document 1), camellia A squeezed rice cake (Patent Document 2) after squeezing oil from a seed of a family plant is known.

JP-A-8-298915 JP-A-8-175925

  However, when a copper compound is used, copper ions may flow out in the rain and adversely affect the environment. In addition, treatment with a repellent does not sufficiently prevent the invasion of land snails, and once a slug passes, mucus covering the body surface adheres to the surface of the repellent, and the repellent of this passing part is avoided. There is a drawback that the effectiveness is reduced and the repelling effect is gradually lost.

Moreover, since the squeezed pods of camellia plant seeds are natural organic substances and the compounds as active ingredients have not been clarified, it has been difficult to obtain sufficient repellent effect.
Therefore, an object of the present invention is to provide a repellent capable of powerfully repelling land and gastropods.

  Conventional pyrethroid compounds have an insecticidal effect on mosquitoes and cockroaches, and pyrethroid compound permethrin has a high repellent effect on termites and cockroaches, but not on slugs. (See JP 2001-213705 A). This is because when the repellent is applied to the terrestrial gastropod, the terrestrial gastropod is protected by the mucus around the body, so the repellent is blocked by the mucus and does not work sufficiently, the mucus around the body It is presumed that the repellent cannot work sufficiently as a result because the body comes off from the part where the repellent is attached (mucus removal action) as if the part is removed. As described above, it was thought that pyrethroid compounds do not act on repellents of land-gastropods, but as a result of further studies by the present inventors, transfluthrin and cifenotrin are powerful against land-gastropods among the pyrethroid compounds. The present inventors have found that the repellent effect can be exhibited and the land and gastropod can be efficiently repelled, and the present invention has been completed.

That is, the present invention is achieved by the following (1) to (3).
(1) A terrestrial gastropod repellent characterized by comprising at least one selected from transfluthrin and cifenotrin as an active ingredient.
(2) A method for repelling land and gastropods characterized in that the land and gastropod repellent described in (1) is treated so as to be at least 0.05 g per 1 m ² of the land and gastropod repellent target area.
(3) The terrestrial gastropod repellent method according to (2) above, wherein the terrestrial gastropod repellent agent described in (1) is treated under a flower pot or a planter.

  ADVANTAGE OF THE INVENTION According to this invention, sufficient repellent effect is exhibited with respect to land and gastropod, and land and gastropod can be efficiently avoided.

It is a figure explaining the repelling test method with respect to a slug.

  Hereinafter, the present invention will be described in more detail.

  The terrestrial gastropod repellent of the present invention contains at least one selected from transfluthrin and cyphenothrin as an active ingredient, and transfluthrin and cyphenothrin exhibit excellent repellency against terrestrial gastropods. Transfluthrin and cifenotrin can be used in combination as necessary.

  The active ingredient is dissolved or dispersed in various solvents, mixed or adsorbed with a solid carrier, and aerosol, pump agent, liquid agent, coating agent, matting agent, sheet agent, tape agent, powder agent, granule agent It can be prepared into a dosage form such as a gel or a cream and used as a land and gastropod repellent.

  Examples of the solvent include water, alcohols such as methyl alcohol and ethyl alcohol, ketones such as acetone and methyl ethyl ketone, ethers such as tetrahydrofuran and dioxane, aliphatic hydrocarbons such as hexane, kerosene and paraffin, benzene and toluene. Aromatic hydrocarbons such as ethyl ester, esters such as ethyl acetate, hexyl laurate, etc.

  Examples of the solid carrier include minerals and inorganic powders such as kaolin, talc, bentonite, clay, diatomaceous earth, calcium carbonate, silica, and zeolite; plant powders such as wood powder, soybean powder, wheat flour, and starch powder; Plastics such as polyamide, acrylic and polyester; synthetic fibers made of such plastics; rubbers such as polybutadiene or powder thereof; sublimable powders such as camphor, naphthalene, paradichlorobenzene, trioxane, cyclododecane and adamantane; natural fibers such as linter and pulp Animal and vegetable fibers such as wool, cotton and silk; regenerated fibers such as rayon; and papers and nonwoven fabrics obtained from inorganic fibers such as glass fibers and asbestos can be used.

  Moreover, when preparing into the said dosage form, a coating-film formation agent, surfactant, a wetting agent, a stabilizer, a propellant etc. can be added and mix | blended as needed. As these additives, for example, ethyl cellulose, hydroxypropyl cellulose, silicone, acrylic resin, chlorinated rubber, petroleum resin, methyl cellulose, vinyl acetate, polyvinyl alcohol, latex emulsion and other film forming agents, aliphatic monocarboxylates, Surfactant such as linear alkyl benzene sulfonate, alkyl sulfate, sorbitan fatty acid ester, polyoxyethylene alkyl ether, polyethylene glycol fatty acid ester, fatty acid alkanolamide, wetting agent such as casein, gelatin, alginic acid, carboxymethyl cellulose, Injection of stabilizers such as butylhydroxyanisole, dibutylhydroxytoluene, tocopherol, γ-oryzanol, liquefied petroleum gas, dimethyl ether, fluorocarbon, compressed gas, etc. Etc. The.

  The terrestrial gastropod repellent of the present invention may contain other gastropod control agents, insecticides, repellents, bactericides, antifungal agents, fragrances, water / oil repellents, etc. Pesticides, pyrethroid insecticides, carbamate insecticides, organophosphorus insecticides, fluorine insecticides, insect growth control agents, insecticides such as N-diethyl-m-toluamide, dimethylphthalate, etc. Agents, bactericides such as parachlorometaxylate, various perfumes such as lemons, roses, and greens, and water and oil repellents such as waxes, fats and oils, metal soaps, and fluorine oil repellents.

The land and gastropod repellent method of the present invention applies the land and gastropod repellent of the present invention to the land or gastropod repellent target region.
As an application method, the terrestrial gastropod repellent is processed directly into the terrestrial gastropod, or it is processed into a specific gathering place (evasion target area) based on the habit of the terrestrial gastropod. The repellent may be directly processed on the terrestrial gastropod or volatilized and may be appropriately selected.
As the specific gathering place, from the habit that land and gastropods prefer dark and humid places, for example, flower pots and planters, bottom or surrounding parts of nursery pots, between the bottom and soil, inside drainage, under dead leaves, etc. Is mentioned. Further, the present invention can also be applied to a living organism itself that can serve as a nutrient source for land and gastropods, or to the periphery of the living organism. For example, the crop itself, the field where it is cultivated, an orchard, a flower bed in which a flower bud and the like are growing, and the like can be mentioned.
In addition, examples of the place where the land and gastropod repellent is applied indoors include kitchens such as ordinary households and canteens, toilets, verandas, and storerooms.
As a method for applying the land and gastropod repellent of the present invention, the method of applying the land and gastropod repellent to the application place or land and gastropod, spraying or applying the land or gastropod repellent, or non-woven fabric, sheet, Examples thereof include a method in which a carrier such as an inorganic carrier is supported and installed at the specific gathering place.

The application amount of the terrestrial gastropod repellent of the present invention may be appropriately determined according to the dosage form of the repellent, the application method, and the application location.For example, when used on a carrier such as a nonwoven fabric, it is usually a specific gathering location. (Repelling target area) The amount of the active ingredient per 1 m ² is preferably at least 0.05 g, more preferably 1 g or more. The same amount is applied to aerosols and pumps.
The active ingredient content of the terrestrial gastropod repellent of the present invention may be determined as appropriate depending on the dosage form, application method, and application location of the repellent, as long as the application amount can be applied. For example, when used as a liquid such as an aerosol solution or a pump agent, the active ingredient in the composition may be contained in an amount of 0.0005 to 10% by mass, preferably 0.005 to 1% by mass. Further, when used by being supported on a solid carrier such as a nonwoven fabric, the active ingredient in the composition may be contained in an amount of 0.001% by mass or more, preferably 0.2% by mass or more. It can be arbitrarily selected according to.

  Examples of terrestrial gastropods repelled by the present invention include, for example, urchinaceae, such as urchins, chachauramakuji, nonamekue, slugs such as slugs, yamanakuji, seiurai, octopus, etc. Examples include slugs, snails, mussels, etc., such as monoaragaiaceae, african scrambles such as african mussel, african squirrel sect.

  EXAMPLES The present invention will be specifically described below with reference to examples and comparative examples, but the present invention is not limited to these examples.

(Example 1)
A 50 mg of transfluthrin was dissolved in 100 mg of hexyl laurate to prepare a terrestrial gastropod repellent composition, and the entire amount was uniformly impregnated into a pulp mat (length 2.2 cm x width 3.5 cm x thickness 0.3 cm). And a repellent specimen was obtained.

(Example 2)
A repellent specimen was obtained in the same manner as in Example 1 except that transfluthrin was changed to cifenotrin.

(Example 3)
A repellent specimen was obtained in the same manner as in Example 1 except that 50 mg of transfluthrin was changed to 16 mg.

Example 4
A repellent specimen was obtained in the same manner as in Example 1 except that 50 mg of transfluthrin was changed to 0.8 mg.

(Comparative Example 1)
The pulp mat was uniformly impregnated with 100 mg of hexyl laurate to obtain a repellent specimen.

(Comparative Example 2)
A repellent specimen was obtained in the same manner as in Example 1 except that transfluthrin was changed to cyfluthrin.

(Comparative Example 3)
A repellent specimen was obtained in the same manner as in Example 1 except that transfluthrin was changed to metfurthrin.

(Test example)
As shown in FIG. 1, a cuboid-shaped upper opening bat 3 (length 30 cm × width 40 cm × height 20 cm) was prepared, and soil 5 was laid on the bottom of the bat 3 to a thickness of 3 cm. A cylindrical bowl (No. 5 bowl) 4 having a diameter of 15 cm for fixing the test insect is approximately 0.5 cm between the bottom of the bowl 4 and the soil 5 at a substantially central portion of the inner flat portion of the bat 3. The repellent specimen was placed between the bottom of the pot 4 and the soil 5.
Next, one slug as the test insect 2 was released on the surface of the soil and left in a sunny room at room temperature of 25 ° C. and humidity of 50% for 3 days. During that time, he did not feed, but gave enough water to water the pots. Three days later, the fixing position of the test insect 2 was confirmed. When the test insect 2 settles between the bottom of the pot 4 and the soil 5, it was judged as “no repellent effect”, and when it settled between the bottom of the pot 4 and the soil 5, it was judged as “repellent effect”. . The test was performed 5 times, and the repelling rate was calculated by the following formula. The results are shown in Table 1.
Repelling rate (%) = (number of individuals settled outside the pot bottom and soil / total number of test insects) × 100

From the results of Table 1, Examples 1 to 4 using the terrestrial gastropod repellents of the present invention have repellent rates of 100%, 80%, 100%, and 80%, respectively, and show a strong repellency effect against terrestrial gastropods. It was.
On the other hand, since the comparative example 1 used only hexyl laurate which is a solvent, the repelling rate was 0%, and the repelling effect with respect to land-hog gastropod could not be confirmed. Comparative Example 2 and Comparative Example 3 were examples in which transfluthrin was changed to cyfluthrin and metfurthrin, but the repellent rates were 0% and 20%, respectively, and the repellent effect on land-gastropods could not be confirmed.
From the above, it was found that among the pyrethroid compounds, transfluthrin and cyphenothrin have a particularly high repellent effect on land-gastropoda.

1 repellent specimen 2 test insect
3 Bat 4 Bowl 5 Sat

Claims (3)

  A terrestrial gastropod repellent comprising at least one selected from transfluthrin and cyphenothrin as an active ingredient. The terrestrial rabbit characterized in that the terrestrial gastropod repellent according to claim 1 is treated so that at least one selected from transfluthrin and cyphenothrin is at least 0.05 g per 1 m ² of the terrestrial gastropod repellent target area. How to avoid gastropods.
  The method for repelling land-hog gastropods according to claim 2, wherein the land-hog gastropod repellent according to claim 1 is treated under a flower pot or a planter.

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