WO2007123213A1 - Pest control agent - Google Patents

Abstract

Disclosed is a pest control agent containing a tropolone derivative, a chloride of a group 2 element of the periodic table, and water. Also disclosed is a pest control agent containing a chloride of a group 2 element of the periodic table and water, which further contains, as an additive, at least one substance selected from the group consisting of surface active agents, antirust agents, sulfates and alginates. The pest control agent can be used for both soil treatments and wood treatments, and is highly effective against house pests, especially against termite. In addition, the pest control agent is safe to the human body.

Description

 Specification

 Pest control agent

 Technical field

 [0001] The present invention relates to a pest control agent used for controlling (controlling and preventing) domestic pests such as termites, ticks, cockroaches, flies (maggots), and mosquitoes.

 Background art

 [0002] Chemicals have been used in the past for the control and prevention of pests called house pests such as termites, ticks, cockroaches, flies and mosquitoes. Particularly for termites, powerful drugs such as organophosphorus have been used. However, the development of resistance to chemicals and the safety of the human body are problems, and the development of highly safe pest control agents is required.

 To date, there have been known pest control and repellents using calcium chloride as an active ingredient (Patent Document 1: Japanese Patent No. 2799859, Patent Document 2: Japanese Patent Laid-Open No. 10-16 7916). This extermination or repellent action is due to the fact that when calcium chloride is absorbed into the cells of house pests, the intracellular electrolytic balance is lost and the cell membrane is destroyed.

 [0003] On the other hand, the antibacterial effect of cypress oil obtained by steam distillation of cypress husk is confirmed, and a pest control agent using hinokitiol is known (Patent Document 3: Japanese Patent Laid-Open No. 2001-48715). (Patent Publication, Patent Document 4: JP-A-2004-155694).

 Disclosure of the invention

 [0004] However, according to the inventors' investigation, termite control agents that require particularly severe control effects (where control includes both extermination and prevention) are disclosed in Patent Documents 1 and 2 above. Even if the calcium chloride concentration was increased to the saturation concentration, a sufficient control effect could not be obtained, and the termite death rate could not be made 100% in the wood feeding damage test and soil penetration test. In other words, although calcium chloride has some degree of control effect (soil penetration prevention effect) against termite among termites, it does not prevent soil penetration through termites, and it can be easily transferred to houses. May cause tremendous damage.

[0005] Further, since the control effect of hinokitiol is originally weak, for example, in Patent Document 3 above Hiba oil is used in which the content of hinokitiol is increased from 2% to 10% by weight. However, in order to increase the content of hinokitiol in this way, much labor and cost have to be spent, and there was a practical problem as a control agent that requires a large amount of spraying at once.

 Hiba oil also has a strong repellent effect, so termites do not come into contact with Hiba oil, so it is not effective as a termite control agent, and Hiba oil has a strong odor, which makes it uncomfortable when the amount of processing increases. There is also a problem with giving.

[0006] Furthermore, termite control usually requires both soil treatment and xylem treatment, and a control agent suitable for each application site has been selected and used. For example, a conventional control agent containing the above hinokitiol has been used for xylem treatment!

 However, when using different control agents for soil treatment and xylem treatment, it is necessary to prepare multiple sprayers for spraying each, or to clean the sprayer every time the chemical solution is changed. Improvements were required both in terms of cost and labor.

 Accordingly, an object of the present invention is to solve the above-mentioned problems and to provide a control agent that has a high control effect on house pests, particularly termites, and is safe for the human body.

[0007] The first present invention relates to a pest control agent comprising a trobolone derivative, a chloride of a Group 2 element of the periodic table, and water.

 The second aspect of the present invention is a pest control agent containing chlorides and water of group 2 elements of the periodic table, and as an additive carotenant, a surfactant, an antifungal agent, a sulfate, and an alginate power are selected. The present invention relates to a pest control agent containing at least one of the above.

 The third aspect of the present invention relates to a termite control method using the pest control agent according to the first and second aspects of the present invention for soil treatment and Z or xylem treatment.

 BEST MODE FOR CARRYING OUT THE INVENTION

[0008] The following is a description of preferred embodiments of the present invention. The present invention is not limited to these embodiments.

In the first aspect of the present invention, by using a combination of a trobolone derivative and a salt of a Group 2 element of the periodic table as an active ingredient, a remarkably high control effect can be obtained as a synergistic effect of both. As a result, various termites including not only termites but also termites It shows a high insecticidal effect against the worm and can effectively prevent the house. In addition, since both active ingredients are highly safe and easily available, it is possible to provide a safe and inexpensive pest control agent.

 Furthermore, since the pest control agent according to the present invention can be applied to both soil treatment and xylem treatment, construction on site can be easily and efficiently performed.

 [0009] The trobolone derivative is a compound represented by the following general formula (1). A 7-membered hydroxyl group or carbonyl group may form a metal complex or a metal salt, or a hydroxyl group may form an ester or ether.

 [Chemical 1]

R²、 R³はそれぞれ独立に、水素、アルキル基、ァルケ-ル基(In Formula (1),

R ² and R ³ are each independently hydrogen, an alkyl group, or an alkyl group.

Represents an alkyl group or a cycloalkyl group. )

[0010] The alkyl group, alkyl group, and alkyl group of R ² and R ³ may be either linear or branched, and each preferably has about 1 to 12 carbon atoms. The cycloalkyl group preferably has about 1 to 12 carbon atoms, and may further have a substituent such as an alkyl group, or may have an unsaturated bond.

 [0011] Among the above trobolone derivatives, it is preferable to use hinokitiol, which is 4 isopropyl trobolone (β tsuyapricin). Hinokitiol is a natural product contained in the essential oils of Aomori Hiba and Taiwan Hinoki. Here, natural extracts may be used, or chemically synthesized products may be used.

Preferably, as hinokitiol, hiba oil (hiba essential oil) obtained by steam distillation of hiba materials (millwood, large sawdust, etc.) such as Aomori hiba can be used. Hiba oil usually contains about 2% by weight of hinokitiol and various other ingredients. Since these other components than hinokitiol are also considered to contribute to the pest control effect, this is a preferred embodiment. In addition, a configuration containing hiba oil, salty calcium, and water can be mentioned.

 [0012] In the present invention, the amount of the trobolone derivative is extremely low as compared with the conventional one by combining with a chloride of Group 2 element of the periodic table, particularly preferably with calcium chloride and Z or magnesium chloride. can do. In spite of its extremely low amount, the combination of the trace amount of trobolone derivative provided a synergistic effect with the salt and salt of the Group 2 elements of the periodic table, resulting in a very strong control effect (insecticide). It is a feature of the present invention that an effect and an effect of preventing soil penetration can be obtained.

 [0013] Specifically, the compounding amount of the trobolone derivative such as hinokitiol in the pest control agent is preferably 1 ppm (0.0001% by weight) or more, more preferably 5 ppm or more. Further, it is more preferable that it is 10 ppm or more. Even more preferable is 20 ppm or more. The upper limit of the blending amount is not particularly limited, but there is no difference in the effect obtained even if blending too much, so that it is preferably about 1000 ppm (0.1% by weight) or less 400 ppm ( 0.04% by weight) or less, more preferably 200ppm (0.02% by weight) or less, and even more preferably about lOOppm or less.

[0014] The amount of Hiba oil is preferably 0.005% by weight or more, more preferably 0.025% by weight or more, and even more preferably 0.05% by weight or more. It is even more preferable that the content is 0.1% by weight or more. The upper limit of the blending amount is not particularly limited, but there is no difference in the effect obtained even if blending too much, so it is preferable that the blending amount is about 5.0% by weight or less. It is more preferable that the amount is about 1% by weight or less. More preferably, the amount is about 0. 5% by weight or less. More preferably, the amount is about 5% by weight or less. Since the amount of oil blended can be kept to a minimum and minimum compared to the conventional amount, there is no discomfort after processing.

[0015] As the salt of Group 2 element of the periodic table, salt calcium and Z or salt magnesium can be preferably used, and salt calcium is most preferably used.

Both calcium chloride and calcium chloride can be used as anhydrous salt or hydrated salt (1-6 hydrate). The blending amount may be appropriately set according to the type of pest, but generally it is preferably 10 to 50% by weight, more preferably 15 to 45% by weight, and more preferably 20 to 40% by weight. It is even more preferable that it is 27 to 33% by weight, even more preferably 25 to 35% by weight or more. Even if more than 50% by weight of calcium chloride is added, it becomes a saturated solution, and no further improvement in effect is observed. On the other hand, if it is less than 10% by weight, there is a possibility that a sufficient control effect may not be obtained especially for termites.

 [0016] Magnesium chloride can be used either as an anhydrous salt or a hydrated salt (1-6 hydrate).

 The blending amount of salt and magnesium may be appropriately set according to the kind of pest, but generally it is preferably 1 to 35% by weight in the pest control agent in terms of anhydrous salt. More preferably, it is 10 to 25% by weight. Even if more than 35% by weight of magnesium chloride is added, it becomes a saturated solution, and no further improvement in effect is observed. On the other hand, if it is less than 1% by weight, there is a fear that a sufficient control effect cannot be obtained especially for termites.

[0017] In addition to the above two kinds of active ingredients, it is preferable that the pest control agent is mixed with a chelating agent (complex forming compound) in order to increase the durability of the effect of the trobolone derivative. The chelating agent is not particularly limited as long as it is a compound having a chelating effect (complex forming ability). For example, ethylenediamine amine acetic acid, hydroxyethyl ethylenediamine amine acetic acid, dihydroxyethyl ethylenediamine Amine diacetic acid, 1,3-propanediaminetetraacetic acid, cyclohexanediaminetetraacetic acid, diethylenetriaminepentaacetic acid, triethylenetetraminehexaacetic acid, hydroxyethyliminodiacetic acid, utyrolic acid, phosphonic acid, hydroxyethane phosphonic acid, amino Trimethylenephosphonic acid, polyphosphoric acid, polyamino acids (polyglutamic acid, polyaspartic acid, etc.), citrate, darconic acid, succinic acid, ascorbic acid, tartaric acid, acrylic acid-based (co) polymers, and their salts (sodium Salt, potassium salt, amine salt, ammonium salt, etc.) And the like. Of these, ethylenediamine tetraacetate (disodium salt, tetrasodium salt, etc.) and similar compounds are preferably used. These may be used alone or in combination of two or more. [0018] The amount of the chelating agent is not particularly limited, but is preferably about 0.1 to 10% by weight in the pest control agent, more preferably about 0.5 to 5% by weight. .

 Although the mechanism of action brought about by the chelating agent is not clear, one reason can be presumed as follows. In other words, trobolone derivatives chelate with iron and other metal ions present in soil and xylem, and their effects may not be exerted. However, when a pest control agent contains a chelating agent, its chelating agent Since the agent is preferentially complexed with iron, etc., the sustainability of the effect of the trobolone derivative may be maintained.

 [0019] In addition to the above two types of active ingredients, in order to increase the penetration of the active ingredients into the xylem and to enable the preparation in aqueous systems, the drug transferability into termites such as termites In order to increase the resistance, it is preferable to add a surfactant to the pest control agent. By combining the surfactant, the spreadability and adherence of the salty substances of Group 2 elements of the periodic table such as salty calcium and salty magnesium are enhanced, and a higher control effect is obtained.

 [0020] The type of the surfactant is not particularly limited, and an anionic surfactant, a nonionic surfactant, or the like can be used. Of these, polyoxyethylene alkyl ethers, polyoxypropylene alkyl ethers, polyoxyethylene alkylphenyl ethers, polyoxypropylenes that are preferred to be nonionic surfactants from the viewpoints of permeability, emulsification / dispersibility, etc. Ether type nonionic surfactants such as alkyl phenyl ethers are particularly preferred.

 [0021] In consideration of the environment, it is preferable to use a biodegradable surfactant. As the biodegradable surfactant, for example, a commercially available product such as “SC—Magic Pan” (Infity Co., Ltd.) can be used. This is a surfactant composed of vegetable surfactants, fatty acids and other components.

 The blending amount of the surfactant is not particularly limited, but it is preferably about 1 to 5% by weight in the pest control agent, more preferably about 2 to 4% by weight.

[0022] Since calcium chloride is weakly acidic and has a strong hygroscopic property, when the aqueous solution is treated under the floor of a house, the metal members of the building structure are corroded by the scattered calcium chloride. There's a problem. Therefore, metal members used under the floor In order to prevent the occurrence of wrinkles on the moss, it is preferable to add a fungicide to the pest control agent. By blending an antifungal agent, the control effect of the pest control agent can be enhanced. The kind of the antifungal agent is not particularly limited, and any of inorganic and organic compounds may be used. Specifically, for example, sodium tungstate, sodium molybdate, sodium nitrite, sodium benzoate, monoethanolamine, diethanolamine, triethanolamine, 1, 2, 3-benzotriazole Etc.

 For example, “Rescall W-716” and “Rescall W-880P” manufactured by Toei Kasei Co., Ltd. can be preferably used as commercial products.

[0023] It is preferable to use an organic antifungal agent from the viewpoint of improving the drug transferability into the pest body and enhancing the control effect.

 Further, from the viewpoint of emulsification and dispersibility and operability, it is preferable to use a surfactant type antifungal agent (or a surfactant having an antifungal effect). Although it is not particularly limited as long as it has an antifungal effect, even if a nonionic surfactant type antifungal agent is preferred, the repellent effect of alkylamine is added, so that polyoxyethylene alkylamine, dipodium are added. Alkylamine antifungal agents such as reoxyethylene alkylamine can be preferably used.

 By using a surfactant type antifungal agent, in addition to the antifungal effect, the effect of the above-mentioned surfactant can also be obtained, so the control effect can be further enhanced.

[0024] These fungicides may be used alone or in combination of a plurality of types. The blending amount of the fungicide is not particularly limited, but it is 0.1 in the pest control agent. It is preferably about -20% by weight, more preferably 0.2-10% by weight, and even more preferably 0.5-5% by weight.

 [0025] In another preferred embodiment, according to an embodiment, a specific auxiliary agent is combined with a salt of a Group 2 element of the periodic table such as salt calcium or salt magnesium, and both of them are combined. As a synergistic effect, the control effect can be remarkably increased.

This particular adjuvant is a sulfate or alginate, and it is preferable to use, for example, calcium sulfate, barium sulfate, or sodium alginate. Two or more of these Use the above compounds together.

 The blending amount is preferably 1 to 20% by weight, more preferably 5 to 15% by weight.

 [0026] In addition to the above-mentioned components, the pest control agent optionally includes a fungicide, a fungicide, an insect repellent, a stabilizer, a dispersant, a thickener, an antifoaming agent, an organic solvent, a fragrance, and a coloring. Agent, PH adjuster, etc. can be added. As these additives, known ones can be used, and the blending amount thereof is not particularly limited as long as it is appropriately set.

 [0027] The pest control agent is prepared in the form of an aqueous solution or a dispersion by mixing the trobolone derivative, the salt of the Group 2 element of the periodic table, and water with any of the above-described optional components. The Since a large amount of chemical spray is required for actual construction, it is preferable to prepare the pest control agent at the construction site.

 [0028] The pest control agent according to the present invention contains these components and water. Conventionally, the control agent containing hinokitiol as an active ingredient was an organic solvent system, whereas the present invention is characterized in that it contains hinokitiol and is prepared in an aqueous system. As a result, volatile organic substances that cause sick house symptoms and chemical hypersensitivity are not emitted!

 [0029] This pest control agent can be used for controlling and preventing pests called house pests such as termites, ticks, cockroaches, flies and mosquitoes. Among them, a high control effect can be obtained against termites (such as termites and termites). In the following, the application method and so on will be described using the case of using it for termite control.

 [0030] For termite control, the pest control agent according to the present invention can be applied to both soil treatment and xylem treatment.

 In the case of soil treatment, generally, a chemical is sprayed on the soil surface to form an ant barrier (barrier layer). In other words, termites, which are subterranean insects, dig tunnels from the underfloor soil and invade the underfloor. For termite control, spray a chemical on the underfloor soil surface to form a noria layer. The “barrier method” is very useful.

The xylem treatment includes a method of spraying a chemical on the surface of a wood using a sprayer, a method of applying with a brush or the like, and a method of injecting a chemical by perforating wood or a wall. Also Can also apply a pest control agent to the sheet and lay the sheet on the soil surface.

 [0031] The pest control agent is preferably used as a liquid type or a spray type. In the case of a liquid type, it can be sprayed using a sprayer. Alternatively, it may be applied by forming a granule containing a liquid pest control agent and spraying it. Granules include a granular carrier such as a porous body impregnated with a pest control agent, a granular carrier coated with a pest control agent, a form in which a filler and a pest control agent are kneaded and granulated, capsule It may be out of place, such as a form that contains a pest control agent inside.

[0032] The amount of treatment with the pest control agent is not particularly limited, and may be set as appropriate depending on the concentration of the active ingredient and the application site. For example, in the case of soil treatment, as a guide. 1 to: LO l Z m ² about the amount can be sprayed 3-7 liters Zm ² about a it is in preferred instrument 4-6 l Zm ² about More preferably it is. For wood treatment, and more preferably be about 100~500mlZ m ² is preferred instrument 200～400MlZm ² about.

[0033] Calcium chloride, as the weight of the chloride of the periodic table Group 2 element such as magnesium chloride (anhydrous salt basis), preferably be treated to be sprayed amount of 0. L～3kgZm ² fixture 0. more preferred be treated such that the application rates of ² ~2kgZm 2,.

 [0034] During the treatment (spraying or application) with this pest control agent, sulfate or alginate, preferably calcium sulfate, barium sulfate, or sodium alginate is used as an auxiliary agent in advance (with a pest control agent). It is preferable to spray or apply simultaneously (before the treatment with the pest control agent) or after the treatment (after the treatment with the pest control agent) before the treatment. A remarkably high control effect can be obtained by spraying or applying these adjuvants. This is presumably because a physical layer is formed by the adjuvant, and a synergistic effect is obtained by increasing the contact time between the termites and the salt of the group 2 element of the periodic table. The treatment with such an auxiliary agent is particularly preferable when the pest control agent to be used does not contain these auxiliary agents.

 [0035] When the auxiliary agent is sprayed in advance, the auxiliary agent can be sprayed in the form of powder.

 On the other hand, in the case of post spraying, it is preferable to spray the adjuvant as an aqueous solution or a suspension with water.

The throughput of calcium sulfate, barium sulfate, or sodium alginate is particularly limited It may be set as appropriate depending on the concentration of the active ingredient and the application location. For example, in the case of pre-sprayed in powder form, in the case of post-sprayed with preferred tool solutions or suspensions be used 0. l~lkgZm ² about adjuvants, 0. 1~: LkgZm as about ^two auxiliary agent is diffused, it is preferable to adjust the concentration and their application rates (approximately ² typically l~5LZm).

 [0036] The second aspect of the present invention provides at least one additive selected from the group power of the periodic table group 2 element chloride, which is a specific additive, that is, a surfactant, an antifungal agent, a sulfate, and an alginate force. It is an invention used in combination with a caloric agent, and can provide a control effect that is much better than the use of a salt of a Group 2 element of the periodic table alone.

 In particular, salt calcium is used as a salt of the Group 2 element of the periodic table, and by combining a salt calcium with a surfactant and an antifungal agent, the spread of the salt calcium is enhanced and high. It is possible to obtain a pest control agent that has a control effect and does not have a problem of metal corrosiveness to metal members under the floor.

 [0037] Further, by using a sulfate or alginate, for example, calcium sulfate, barium sulfate, or sodium alginate, a synergistic effect can be obtained by increasing the contact time between the pest and the salted calcium salt, which is notable. A high control effect can be obtained. As a result, it shows a high insecticidal effect against various termites including not only termites but also termites, and can effectively prevent houses.

[0038] As in the case of the first aspect of the present invention, since the material for the pest control agent according to the second aspect of the present invention is highly safe and easily available, a safe and inexpensive pest control agent is provided. be able to.

 Furthermore, since this pest control agent can be applied to both soil treatment and xylem treatment, construction at the site can be performed easily and efficiently.

 Example

 [0039] Hereinafter, the effect of the pest control agent according to the present invention was confirmed by a soil penetration test, a wood damage test, and an antifungal test for termites.

 <Soil penetration test 1>

Packing soil with 4 cm height in a cylinder with a diameter of 1. 8 cm, and a treatment volume of 5 LZm ² from the top. The test solution was soaked. After air drying, the soil was moderated with 2.5 ml of water, and a container containing pine wood flour was placed at one end of the cylinder, and 40 termite ants were placed at the other end. The degree of perforation of the soil by the termites until 4 days later (perforation length) and the number of dead termites were examined.

[0040] <Soil penetration test 2>

Sand loam was packed to a height of lcm in a polyethylene container 5cm in diameter and 3cm in height. The central portion of the sandy loam, making a clear acrylic cylinder having an inner diameter of 1. 5 cm, packed with sandy loam height 4c m therein, impregnated upper force throughput 5LZm ² of test solution. After air drying, add 2.5 ml of water to the transparent acrylic cylindrical sand loam, and lml of water to the sandy loam in the polyethylene container to moisten it. Cellulose was packed to a height of 1 cm and the upper end was sealed with a wrap film. 50 polyethylene termite ants were placed in a polyethylene container, and the state of soil penetration up to 21 days later was examined.

 The case where the termites did not penetrate through the soil treatment layer in the transparent acrylic cylinder was evaluated as X, and the case where the termites penetrated the soil treatment layer and reached the OC cellulose layer was evaluated as X.

[0041] <Wood damage test>

A predetermined amount (100, 200, 300gZm ² equivalent) of test solution was applied to a cedar sapwood piece (2 X 2 X lcm) with a brush and left in the room for a week. One week later, the treated piece of wood is placed in an insect release container (cylindrical container made of acrylic resin with a diameter of 7 cm and a plaster on the bottom), and Yeshiroari (150 professional ants and 50 soldier ants) is released. Insects. This was left for 3 weeks with hydration, and the amount of damage (weight reduction rate) and the number of dead termites were examined after 3 weeks.

[0042] <Anti-mold test>

 25 ml of the test solution was put in a glass bottle with a 50 ml lid, and an iron test piece (SS-400, 40 mm X 20 mm X 2 mm) was immersed, sealed, and left in a thermostatic oven at 40 ° C for 30 days. Thereafter, the test piece was taken out and the degree of wrinkles was observed.

 The degree of iron corrosion was judged according to the following criteria. 5: Extremely severe corrosion, 4: Extreme corrosion, 3: Corrosion, 2: Slight corrosion, 1: Almost no corrosion.

<Example A and Comparative Example A>

Test solutions of Example A and Comparative Example A shown in Table 1 were prepared. Of the test solution shown in Table 1. The compounding components are as follows.

 Hiba Oil: Kisei Tech's “Kisei PROSOL · N” containing Hiba oil (Hinokithiol content: 0.5% by weight; isoparaffinic hydrocarbons containing natural essential oils such as Hiba Oil, Hinoki Oil, etc.) Reagent (CaCl) manufactured by Iki Kosei Co., Ltd.

 2

 Surfactant: Polyoxyethylene alkyl ether ("Peresoft NSC" manufactured by Miyoshi Oil & Fats Co., Ltd.)

 As a control, soil and wood not treated with the test solution were also tested. There were 3 test zones each.

 The results obtained are shown in Tables 2-5. Tables 2 and 3 are the results of soil penetration test 1.

[0044] [Table 1] Example A: Composition of test solution

[0045] [Table 2] Table 2 Soil penetration test 1 (Example A)

(Note) In the table, “one” indicates penetration. Table 3] Table 3 Soil penetration test 1 (Comparative example A)

(Note) In the table, “one” indicates penetration. Four]

Table 4 Wood eating damage test (Example A)

[0048] [表 5] 表 5 木材食害試験 （比較例 A)

[0048] [Table 5] Table 5 Wood damage test (Comparative Example A)

[0049] As can be seen from the above results, the test solution of Example IV in which two kinds of active ingredients (trobolone derivative and a chloride of Group 2 element of the periodic table) were combined obtained a very high control effect. For termites, the usefulness of these test solutions is evident because they cannot withstand practical use unless the death rate is 100%.

 On the other hand, in the test solution of Comparative Example A containing only one of the active ingredients, a sufficient control effect was not obtained even when the amount of the mixture was increased. Thus, the technical significance of adding hinokitiol to the test solution of Example A, even in a very small amount, is significant, and the synergistic effect of the trobolone derivative and the salt of the Group 2 element of the periodic table. It was a half-j

[0050] In addition to the test solution of Example A above, ethylenediamine tetraacetic acid 2 sodium as a chelating agent As a result of conducting weathering operation and examining its effectiveness using a mixture containing mulberry salt, etc., it was confirmed that the effect of improving the sustainability by adding a chelating agent was confirmed.

<Example B and Comparative Example B>

 Test solutions of Example B and Comparative Example B shown in Table 6 were prepared. The components of the test solution shown in Table 6 are as follows.

 Salt Calcium: Reagent (CaCl) manufactured by Iki Seisei Co., Ltd.

 2

 Surfactant: Polyoxyethylene alkyl ether ("Pelesoft NSC" manufactured by Miyoshi Oil & Fats Co., Ltd.)

 Antifungal agent: Polyoxyethylene alkylamine (Miyoshi Oil & Fat Co., Ltd. “Muron”) Auxiliary agent A: Calcium sulfate: Reagent (CaSO) manufactured by Wako Pure Chemical Industries, Ltd.

 Four

 Auxiliary agent B: Barium sulfate: Wako Pure Chemical Industries, Ltd. Reagent (BaSO)

 Four

 Auxiliary agent c: Sodium alginate: Reagent manufactured by Wako Pure Chemical Industries, Ltd.

 As a control, soil not treated with the test solution was also tested. There were 3 test zones each.

 The results obtained are shown in Tables 7-9. Tables 7 and 8 show the results of soil penetration test 1.

[0052] [Table 6]

Table 6 Example B: Composition of test solution

Table 7 Soil penetration test "1 (Example B)

(Note) In the table, “-J indicates penetration.

0055 Table 8 Soil penetration test 1 (Comparative Example B)

(Note) Table Φ, “One” indicates penetration.

Table 9 Antifungal test (Example B and Comparative Example B)

[0056] As seen from the above results, the test solution of Example B provided a very high control effect. For termites, the usefulness of these test solutions is clear because they cannot withstand practical use unless the mortality rate is 100%. Due to the action of the physical layer of the adjuvant, a synergistic effect can be obtained by increasing the contact time between the termites and the salt of the Group 2 element (salt calcium). It was found that a control effect can be obtained.

 On the other hand, the test solution of Comparative Example B was not able to obtain a sufficient control effect.

[0057] <Example C and Comparative Example C>

 Test solutions of Example C and Reference Example C shown in Table 10 were prepared. As a control, soil was also tested without treatment with the test solution. There were 3 test zones each.

The pre-spreading of the auxiliary agent was carried out in powder form, and an auxiliary agent in an amount of 0.5 kgZm ² was sprayed on the sand loam soil, and then the test solution was soaked. For post-spreading of the supplement, the supplement was prepared as an aqueous suspension, the test solution was soaked in sandy loam, and then added to the sandy loam so that 0.5 kgZm ² of supplement was sprayed. .

[0058] The components of the test solution shown in Table 10 are as follows.

 Magnesium chloride: Reagent (MgCl) manufactured by Wako Pure Chemical Industries, Ltd.

 2

 Surfactant: Polyoxyethylene alkyl ether ("Pelesoft NSC" manufactured by Miyoshi Oil & Fats Co., Ltd.)

Antifungal agent: Polyoxyethylene alkylamine (Miyoshi Oil and Fat Co., Ltd. “Muron”) Hiba oil: Contains Hiba oil (Yes) “Kisei PROSOL N” made by Xytec (Hinokithiol content: 0.5% by weight; Hiba oil, Isoparaffinic hydrocarbons containing natural essential oils such as cypress oil) Adjuvant A: Calcium sulfate: Reagent (CaSO) manufactured by Wako Pure Chemical Industries, Ltd. Auxiliary agent B: Barium sulfate: Wako Pure Chemical Industries, Ltd. Reagent (BaSO)

 4 Adjuvant c: Sodium alginate: Reagent made by Wako Pure Chemical Industries, Ltd.

 The obtained results are shown in Tables 11-12. Table 11 shows the results of soil penetration test 2.

[Table 10]

Table 10 Example C: Composition of test solution

Table 11 Soil penetration test 2

[0061] [Table 12] Table 1 2 Antifungal test

[0062] As seen from the above results, the test solution of Example C provided a very high control effect. In contrast, the test solution of Reference Example C did not provide a sufficient control effect against termites.

<Example D>

 Test solutions for each Example D and Comparative Example D shown in Table 13 were prepared. As a control, soil was also tested without treatment with the test solution. There were 3 test zones each.

The pre-spreading of the auxiliary agent was carried out in powder form, and an auxiliary agent in an amount of 0.5 kgZm ² was sprayed on the sand loam soil, and then the test solution was soaked. For post-spreading of the supplement, the supplement was prepared as an aqueous suspension, the test solution was soaked in sandy loam, and then added to the sandy loam so that 0.5 kgZm ² of supplement was sprayed. .

[0064] The components of the test solution shown in Table 13 are as follows.

 Salt Calcium (Reagent made by Iki Seisei Co., Ltd.

 2

Surfactant: Polyoxyethylene alkyl ether ("Pelesoft NSC" manufactured by Miyoshi Oil & Fats Co., Ltd.) Antifungal agent: Polyoxyethylene alkylamine (Miyoshi Oil & Fat Co., Ltd. “Muron”) Auxiliary agent A: Calcium sulfate: Reagent (CaSO) manufactured by Wako Pure Chemical Industries, Ltd. B: Barium sulfate: Wako Pure Chemical Industries, Ltd. Reagent (BaSO)

 Four

 Auxiliary agent c: Sodium alginate: Reagent manufactured by Wako Pure Chemical Industries, Ltd.

 The obtained results are shown in Tables 14-15. Table 14 shows the results of soil penetration test 2.

[Table 13]

表 14 土壌貫通試験 2

Table 14 Soil penetration test 2

ί0066 [0067] [Table 15] Table 1 5 Antifungal test

[0068] As seen from the above results, the test solution of Example D provided a very high control effect. On the other hand, the test solution of Comparative Example D was not able to obtain a sufficient control effect.

 Furthermore, as a result of conducting a similar soil penetration test 2 on 100 termite termites using the test solution of each Example D described above, no penetration of the soil treatment layer was observed.

 [0069] This application is disclosed in Japanese Patent Application No. 2006-116985 filed on April 20, 2006, Japanese Patent Application No. 2006-128373 filed on May 2, 2006, filed on July 13, 2006. Japanese Patent Application No. 2006—193408 and Japanese Patent Application No. 2006—193409 filed on July 13, 2006, all of which are incorporated herein by reference. .

 It should be noted that various modifications and changes may be made to the above-described embodiments without departing from the novel and advantageous features of the present invention other than those already described. Accordingly, all such modifications and changes are intended to be included within the scope of the appended claims.

Claims

 The scope of the claims  [I] A pest control agent comprising a trobolone derivative, a chloride of a Group 2 element of the periodic table, and water.  [2] The pest control agent according to claim 1, comprising hinokitiol as the trobolone derivative. [3] The pest control agent according to claim 1, wherein the content of the trobolone derivative is 0.0001 to 0.1% by weight.  [4] The pest control agent according to claim 1, wherein the chloride of the Group 2 element of the periodic table contains at least one selected from salt-calcium and salt-magnesium strength. [5] wherein a is 10 to 50 weight _^0/0 content of calcium chloride may be included calcium chloride, the content of Shioi匕magnesium if they contain the Shioi匕magnesium 1-3 The pest control agent according to claim 4, which is 5% by weight. 6. The pest control agent according to claim 1, further comprising at least one selected from the group consisting of a chelating agent, a surfactant, a fungicide, a sulfate, and an alginate salt. [7] The pest control agent according to claim 1, which is a termite control agent. [8] A termite control method using the pest control agent according to claim 7 for soil treatment and Z or xylem treatment.  [9] The termite control method according to claim 8, wherein when the pest control agent is sprayed or applied, the sulfate or alginate is sprayed or applied in advance, simultaneously or afterwards.  10. The termite control method according to claim 9, wherein the sulfate or alginate strength calcium sulfate, barium sulfate, and sodium alginate strength are one or more selected salts.  [II] Pest control agent containing chlorides and water of group 2 elements of the periodic table, and as additives, surfactants, fungicides, sulfates, and at least one selected from the group power of alginate power A pest control agent characterized by containing.  [12] The pest control agent according to claim 11, wherein the chloride of the Group 2 element of the periodic table contains at least one selected from salt-calcium and salt-magnesium strength. [13] the a 10 to 50 weight _^0/0 content of calcium chloride may be included calcium chloride, the content of Shioi匕magnesium if they contain the Shioi匕magnesium 1-3 The pest control agent according to claim 12, which is 5% by weight. 14. The pest control agent according to claim 11, wherein the surfactant content is 1 to 5% by weight. 15. The pest control agent according to claim 11, wherein the content of the fungicide is 0.1 to 20% by weight. [16] The sulfate or alginate strength calcium sulfate, barium sulfate, and sodium alginate strength is one or more selected salts, and the content thereof is 1 to 20% by weight. 11. A pest control agent according to 11. [17] The pest control agent according to claim 11, which is a termite control agent. [18] A termite control method using the pest control agent according to claim 17 for soil treatment and Z or xylem treatment.  [19] The termite control method according to claim 18, wherein when the pest control agent is sprayed or applied, the sulfate or alginate is sprayed or applied in advance, simultaneously or afterwards.  20. The termite control method according to claim 19, wherein the salt or alginate strength is at least one salt selected from the group strength of calcium sulfate, barium sulfate, and sodium alginate.