JP3377240B2 - Insecticidal composition - Google Patents

Description

Detailed Description of the Invention

[0001]

This invention relates to insecticidal compositions. More particularly, it relates to an insecticidal composition suitable for controlling wood pests.

2. Description of the Related Art Conventionally, various insecticidal compositions for controlling wood pests are known, but they are inexpensive and have a long-term residual effect in controlling wood pests. There is a need for a product that does not cause problems such as discoloration of wood and the like, and the development of an effective insecticidal composition satisfying these various conditions has been desired.

[0002]

[Means for Solving the Problems] Carbamate insecticidal compounds are generally inexpensive, but when used for controlling wood pests such as termites and flat beetles, they impart a long-term residual effect and are used for wood and outdoor walls of houses. It is necessary to devise prevention of discoloration. The present invention relates to a microencapsulated insecticidal composition comprising a non-aromatic ester compound having a total carbon number of 8 or more and a carbamate insecticidal compound as an active ingredient. Hereinafter, the composition of the present invention is provided), and the composition of the present invention is particularly suitable for controlling wood pests. Also,
The present invention also provides, as a more preferable insecticidal composition, the above-mentioned composition of the present invention in which the average particle size of the microcapsules is 5 to 80 μm.

The carbamate insecticidal compound used in the present invention is not particularly limited, and may be a cyclic carbamate insecticidal compound such as methoxadiazone. Examples of typical carbamate insecticidal compounds are as follows. Fenobucarb; 2-Secondary butylphenyl N
-Methylcarbamate propoxur; 2-isopropoxyphenyl N-methylcarbamate xylylcarb; 3,4-xylyl N-methylcarbamate metolcarb; m-tolyl N-methylcarbamate isoprocarb; 2-isopropylphenyl N-methylcarbamate

Examples of the non-aromatic ester compound used in the present invention include aliphatic monocarboxylic acid ester and aliphatic dicarboxylic acid ester. Examples of the aliphatic monocarboxylic acid ester include capric acid ester such as methyl caprate, laurate ester such as methyl laurate, myristic acid ester such as isopropyl myristate, palmitic acid ester such as isopropyl palmitate, and 2-ethyl ester. 2-Ethylhexanoic acid ester such as cetyl hexanoate, oleic acid ester such as methyl oleate, isobutyl oleate and the like can be mentioned. Further, as the aliphatic dicarboxylic acid ester, for example, diisobutyl adipate, dihexyl adipate, di-2-ethylhexyl adipate, adipic acid ester such as diisodecyl adipate, dibutyl sebacate, sebacic acid such as di-2-ethylhexyl sebacate. Examples thereof include esters, maleic acid esters such as dibutyl maleate, and fumaric acid esters such as dibutyl fumarate. The non-aromatic ester compound used in the present invention has a total carbon number of 8 or more, and the use of an ester compound having a smaller total carbon number leads to odor, flammability, residual effect of efficacy, etc. Is not preferable.

Various methods for microencapsulating a carbamate insecticidal compound are known, for example, Japanese Patent Laid-Open No.
It is easy to use the interfacial polymerization method described in JP-A No. 2-215504, JP-A No. 62-215505, JP-A No. 63-22004, etc., and more preferable average particle diameter value can be obtained. It is easy to control the microencapsulation reaction. Examples of the membrane material of the microcapsule include polyurethane, polyurea, polyamide, polyester, polycarbonate, polysulfonate, polysulfonamide and the like.

The method will be described in more detail with reference to one example of a method for producing microcapsules of a polyurea film and a polyurethane film using the interfacial polymerization method. A carbamate insecticidal compound, a non-aromatic ester compound having a total carbon number of 8 or more, and a polyvalent isocyanate are mixed, and the obtained oil phase is poured into an aqueous phase containing a dispersant and heated with stirring. Form a polyurea film. It is also possible to form a polyurethane film by adding a polyhydric alcohol to the water phase before heating or before injecting the oil phase into the water phase. The film-forming reaction by the above-mentioned interfacial polymerization method is usually carried out at a temperature within the range of 40 to 80 ° C. for 1 hour or longer, preferably 1 to 48 hours. The obtained slurry can be used as it is as the composition of the present invention, but it is desirable to formulate it into a stable form which is easier to use.

[0007] As a specific formulation form, an aqueous suspension,
Powders, wettable powders, granules and the like, preferably aqueous suspensions are mentioned. The aqueous suspension is produced by adding a stabilizer such as a thickener, an antifreezing agent, an antiseptic and a specific gravity adjusting agent to the slurry obtained above. Examples of the thickener include xanthan gum, rhamsan gum, locust bean gum, carrageenan, natural polysaccharides such as welan gum, synthetic polymers such as polyacrylic acid sodium salt, semi-synthetic polymers such as carboxymethyl cellulose, aluminum magnesium silicate, and the like. Examples thereof include fine powders of mineral substances such as smectite, bentonite, hectorite and dry process silica, and substances having a thickening effect in water such as alumina sol. The amount of thickener added is
The amount is generally 10 parts by weight or less based on 100 parts by weight of the composition of the present invention, although it depends on the kind and the like. Examples of the antifreezing agent include propylene glycol. The addition amount of the antifreezing agent is generally 20 parts by weight or less based on 100 parts by weight of the composition of the present invention. Examples of the preservative include, for example, para-hydroxybenzoic acid ester, those used in usual insecticidal preparations such as salicylic acid derivatives, and specific gravity adjusting agents include, for example, water-soluble salts such as sodium sulfate,
Examples include water-soluble fertilizers such as urea. The content of the carbamate insecticidal compound in the composition of the present invention varies depending on the formulation form, but is generally 0.5 to 80% by weight, and particularly 0.5 to 50% by weight in the case of an aqueous suspension. In addition, the content of the above-mentioned non-aromatic ester compound is generally 0.1 to 1 with respect to 1 part by weight of the carbamate insecticidal compound.
The ratio is 0 part by weight.

In the composition of the present invention, the average particle size of the microcapsules is preferably from 5 to 80 μm, and the average particle size can be measured using, for example, Coulter Counter TA-II type (a product handled by Nikkaki). .

The composition of the present invention is particularly useful for controlling wood pests such as termites and flat beetles, and when used for controlling termites, for example, the composition of the present invention or a diluted solution thereof is contained in an amount of 5 to 50 g / m ² as an active ingredient. Disperse the soil under the floor of the house or concrete surface. Alternatively, when used for xylem treatment, for example, the amount of active ingredient is 1 to 5 g /
About ² m ² is treated on the wood surface. When it is used for the control of flat beetle, it may be used as, for example, an insect-control plywood. As a specific example of the production of insect-repellent plywood, the composition of the present invention is mixed in an adhesive so that the amount of the active ingredient is about 10 to 1000 g per 1 m ^{3 of} plywood to prepare a paste for plate adhesion, and this paste is used. Examples include a method in which a veneer is laminated and pressed at an appropriate temperature to obtain an insect-repellent plywood. Examples of the adhesive used include urea resin adhesives, melamine urea adhesives, modified phenolic resin adhesives, and alkali phenolic resin adhesives. Further, the composition of the present invention is effective not only for controlling wood pests but also for controlling unpleasant pests such as ants, horsetails, gudgeages, centipedes, wallworms, and pill bugs. In this case, for example, the composition of the present invention or a diluted solution thereof is contained in an amount of the active ingredient of about 1 to 50 g / m ² ,
It can be applied to unpleasant pests or habitats of unpleasant pests.

[0010]

EXAMPLES Next, the present invention will be described in more detail with reference to production examples, comparative examples and test examples. Production Example 1 80 g of Sumidule N-75 (isocyanate manufactured by Sumitomo Bayer Urethane Co., Ltd.), 150 g of diisodecyl adipate
And 150 g of Fenobucarb were mixed and homogenized, and this was added to an aqueous solution 40 containing 17.5 g of gum arabic.
In addition to 0 g, a TK auto homomixer (homogenizer manufactured by Tokushu Kika Kogyo Co., Ltd.) was used to stir and disperse at room temperature (rotation speed: 5800 rpm) to obtain fine droplets. Then 24 at 60 ℃
The mixture was gently stirred for a period of time to obtain a microcapsule slurry in which fenobucarb was encapsulated in a polyurea film. 220 g of an aqueous solution containing 1 g of xanthan gum and 5 g of aluminum magnesium silicate was added to the obtained slurry to obtain a composition (1) of the present invention containing 15% by weight of fenocarb. The average particle size of the obtained microcapsules was 15 μm.

Preparation Example 2 50 g of Sumidule L-75 (isocyanate manufactured by Sumitomo Bayer Urethane Co., Ltd.) and 150 g of diisodecyl adipate
And 150 g of Fenobucarb were mixed and homogenized, and this was added to an aqueous solution 40 containing 17.5 g of gum arabic.
In addition to 0 g, the mixture was stirred and dispersed at room temperature using a TK Autohomomixer (rotation speed: 5500 rpm) to obtain microdroplets. Then, the mixture was gently stirred at 60 ° C. for 24 hours to obtain a microcapsule slurry in which fenobucarb was encapsulated in a polyurea film. 260 g of an aqueous solution containing 2 g of xanthan gum and 4 g of aluminum magnesium silicate was added to the obtained slurry to obtain a composition (2) of the present invention containing 15% by weight of fenocarb. The average particle size of the obtained microcapsules was 21 μm.

Production Example 3 40 g of Sumidule L-75, 20 g of Sumidule HT (isocyanate manufactured by Sumitomo Bayer Urethane Co., Ltd.), 100 g of diisobutyl adipate and 20 fenobucarb.
After mixing 0 g to make it uniform, 400 g of an aqueous solution containing 20 g of Gohsenol GL-05 (Nippon Gosei Kagaku Kogyo Co., Ltd.) was added, and the mixture was stirred and dispersed at room temperature using a TK auto homomixer (rotation speed). ; 3700rp
m), microdroplets were obtained. Then, the mixture was gently stirred at 50 ° C. for 20 hours to obtain a microcapsule slurry in which fenobucarb was encapsulated in a polyurea film. 200 g of water and 40 g of propylene glycol were added to the obtained slurry to obtain a composition (3) of the present invention containing 20% by weight of fenocarb. The average particle size of the obtained microcapsules was 9 μm.

Production Example 4 60 g of Sumidule N-3200 (isocyanate manufactured by Sumitomo Bayer Urethane Co., Ltd.), Sumidule L-7510
g, 200 g of dibutyl maleate and 100 g of Fenobucarb were mixed and homogenized, and this was added to 400 g of an aqueous solution containing 30 g of gum arabic, and the mixture was stirred and dispersed at room temperature using a TK auto homomixer (rotation speed: 6000 rp).
m), microdroplets were obtained. Then, the mixture was gently stirred at 70 ° C. for 10 hours to obtain a microcapsule slurry in which fenobucarb was encapsulated in a polyurea film. 230 g of an aqueous solution containing 4 g of xanthan gum was added to the obtained slurry,
The composition of the present invention (4) containing 10% by weight of Fenobucarb.
Got The average particle size of the obtained microcapsules is 10μ.
It was m.

Production Example 5 60 g of Sumidule IL (isocyanate manufactured by Sumitomo Bayer Urethane Co., Ltd.), 200 g of diisobutyl adipate and 140 g of phenobcarb were mixed and homogenized, and then 17.5 g of gum arabic and 40 g of ethylene glycol were added. Was added to 400 g of an aqueous solution containing TK and stirred and dispersed at room temperature using a TK auto homomixer (rotation speed: 5500
rpm) microdroplets were obtained. Then, the mixture was gently stirred at 55 ° C. for 24 hours to obtain a microcapsule slurry in which fenobucarb was encapsulated in a polyurethane film [composition (5) of the present invention]. The average particle size of the obtained microcapsules was 24 μm, and the content of fenobucarb was 17.5% by weight.

Production Example 6 80 g of Desmodur HL (isocyanate manufactured by Sumitomo Bayer Urethane Co., Ltd.), 200 g of dibutyl fumarate and 200 g of Fenobucarb were mixed and homogenized, and this was mixed with 40 g of Gohsenol GL-05 and 50 g of ethylene glycol. Was added to 500 g of an aqueous solution containing TK and stirred and dispersed at room temperature using TK Auto Hom Mixer (rotation speed: 4100
rpm), microdroplets were obtained. Then, the mixture was gently stirred at 60 ° C. for 24 hours to obtain a microcapsule slurry in which fenobucarb was encapsulated in a polyurethane film. 20 g of an aqueous solution containing 0.5 g of xanthan gum was added to the obtained slurry to obtain a composition (6) of the present invention containing 20% by weight of fenocarb. The average particle size of the obtained microcapsules was 6 μm.

Production Example 7 50 g of Sumidule L-75, 15 methyl laurate
After mixing 0 g and Fenobucarb 150 g to make them uniform, this was added to 350 g of an aqueous solution containing 10 g of gum arabic and 40 g of ethylene glycol, and the mixture was stirred and dispersed at room temperature using a TK autohomomixer (rotation speed; 52
00 rpm), microdroplets were obtained. Then, the mixture was gently stirred at 60 ° C. for 10 hours to obtain a microcapsule slurry in which fenobucarb was encapsulated in a polyurethane film. 300 g of an aqueous solution containing 3 g of xanthan gum was added to the obtained slurry to obtain a composition (7) of the present invention containing 15% by weight of fenocarb. The average particle size of the obtained microcapsules was 31 μm.

Production Example 8 Sumidule L-75 20 g, Sumidule HL 2
0 g, 100 g of isopropyl palmitate, 50 g of diisobutyl adipate and 100 g of fenobucarb were mixed and homogenized, and this was mixed with 10 g of gum arabic and 4 g.
400 g of an aqueous solution containing 0 g of ethylene glycol was added, and the mixture was stirred and dispersed at room temperature using a TK Autohomomixer (rotation speed: 5200 rpm) to obtain microdroplets. Then 60
The mixture was gently stirred at 10 ° C. for 10 hours to obtain a microcapsule slurry in which fenobucarb was encapsulated in a polyurethane film. 1 g of xanthan gum and 20 g in the resulting slurry
310 g of an aqueous solution containing the above propylene glycol was added to obtain a composition (8) of the present invention containing 10% by weight of fenocarb. The average particle size of the obtained microcapsules was 29 μm.

Production Example 9 30 g of Sumidule L-75, Sumidule N-75
20 g, 150 g of methyl oleate and 150 g of fenobucarb were mixed and homogenized.
It was added to 400 g of an aqueous solution containing g of gum arabic and 30 g of ethylene glycol, and stirred and dispersed at room temperature using a TK autohomomixer (rotation speed: 5500 rpm) to obtain microdroplets. Then, gently stir at 60 ° C. for 10 hours,
A microcapsule slurry in which fenobucarb was encapsulated in a polyurethane film was obtained. 1.5 in the resulting slurry
250 g of an aqueous solution containing g of xanthan gum and 6 g of aluminum magnesium silicate was added to obtain a composition (9) of the present invention containing 15% by weight of fenocarb. The average particle size of the obtained microcapsules was 18 μm.

Production Example 10 Sumidule L-75 45 g, Sumidule HL 1
After mixing 5 g, 150 g of isobutyl oleate and 150 g of Fenobucarb to make them uniform, add this to 400 g of an aqueous solution containing 20 g of Gohsenol GL-05 and 30 g of ethylene glycol, and stir-disperse at room temperature using a TK autohomomixer. (Rotation speed: 3600 rpm),
Microdroplets were obtained. Then, the mixture was gently stirred at 55 ° C. for 10 hours to obtain a microcapsule slurry in which fenobucarb was encapsulated in a polyurethane film. 240 g of an aqueous solution containing 4 g of xanthan gum was added to the obtained slurry,
The composition (10) of the present invention containing Fenobucarb by weight was obtained. The average particle size of the obtained microcapsules is 13 μm.
Met.

Production Example 11 25 g of Sumidule L-75, 1 of Sumidule HT
After mixing 5 g, 100 g of diisobutyl adipate, 50 g of isotridecyl stearate and 150 g of fenocarb, to homogenize the mixture, an aqueous solution 400 containing 17.5 g of gum arabic and 30 g of ethylene glycol was prepared.
g, and TK autohomomixer was used to stir and disperse at room temperature (rotation speed: 5500 rpm) to obtain microdroplets. Then, the mixture was gently stirred at 60 ° C. for 24 hours to obtain a microcapsule slurry in which fenobucarb was encapsulated in a polyurethane film. 400 g of an aqueous solution containing 1 g of xanthan gum and 5 g of aluminum magnesium silicate was added to the obtained slurry to obtain a composition (11) of the present invention containing 15% by weight of fenocarb. The average particle size of the obtained microcapsules was 20 μm.

Production Example 12 40 g of Sumidule L-75, 100 g of diisodecyl adipate, 50 g of octyldodecyl myristate and 150 g of phenobcarb were homogenized, and then 17.5 g of gum arabic and 25 g of ethylene glycol were added. In addition to 400 g of the aqueous solution containing it, it was stirred and dispersed at room temperature using TK Auto Hom Mixer (rotation speed: 5500 rp
m), microdroplets were obtained. Then, the mixture was gently stirred at 60 ° C. for 24 hours to obtain a microcapsule slurry in which fenobucarb was encapsulated in a polyurethane film. 260 g of an aqueous solution containing 4 g of xanthan gum was added to the obtained slurry to obtain a composition (12) of the present invention containing 15% by weight of phenobcarb. The average particle size of the obtained microcapsules was 18 μm.

Production Example 13 Sumidur L-75 40 g, Sumidur N-75
10 g, diisobutyl adipate 80 g, cetyl 2-ethylhexanoate 20 g and phenobcarb 50 g were mixed and homogenized, and then this was added to an aqueous solution 400 containing 17.5 g gum arabic and 20 g ethylene glycol.
g, and TK autohomomixer was used to stir and disperse at room temperature (rotation speed: 5500 rpm) to obtain microdroplets. Then, the mixture was gently stirred at 60 ° C. for 10 hours to obtain a microcapsule slurry in which fenobucarb was encapsulated in a polyurethane film. 550 g of an aqueous solution containing 2 g of xanthan gum was added to the obtained slurry to obtain a composition (13) of the present invention containing 5% by weight of fenocarb. The average particle size of the obtained microcapsules was 17 μm.

Production Example 14 40 g of Sumidule L-75, 150 g of diisobutyl adipate and 150 g of fenobucarb were mixed and homogenized, and this was mixed with 17.5 g of gum arabic and 23 g.
Added to 350 g of an aqueous solution containing ethylene glycol of
Using TK Auto Homomixer, the mixture was stirred and dispersed at room temperature (rotation speed: 5500 rpm) to obtain microdroplets. Then, the mixture was gently stirred at 60 ° C. for 24 hours to obtain a microcapsule slurry in which fenobucarb was encapsulated in a polyurethane film. Aqueous solution 31 containing 1 g of xanthan gum and 5 g of aluminum magnesium silicate in the obtained slurry 31
0 g was added to obtain the composition (14) of the present invention containing 15% by weight of fenocarb. The average particle size of the obtained microcapsules was 20 μm.

Production Example 15 A composition of the present invention containing 15% by weight of propoxur was obtained in the same manner as in Production Example 14 except that 150 g of propoxur was used instead of 150 g of Fenobucarb. Production Example 16 Production Example 14 is the same as Production Example 14 except that 150 g of xylylcarb was used instead of 150 g of Fenobucarb.
By the same operation as above, a composition of the present invention containing 15% by weight of xylylcarb was obtained. Production Example 17 A composition of the present invention containing 15% by weight of metolcarb was obtained by the same procedure as in Production Example 14 except that 150 g of metolcarb was used instead of 150 g of fenocarb. Production Example 18 Production Example 14 was the same as Production Example 14 except that 150 g of isoprocarb was used instead of 150 g of Fenobucarb.
By the same operation as above, a composition of the present invention containing 15% by weight of isoprocarb was obtained.

Production Example 19 The composition of the present invention (1
4) 8.7 parts by weight were added, and further 14.9 parts by weight of wheat flour, 1.8 parts by weight of 20% by weight ammonium chloride water and 0.2 parts of water were added and mixed well to prepare an adhesive paste.
3 veneers with a water content of 7.5% by weight (18 cm x 18 cm, thickness 2 is 1.0 mm, one used in the center is 2.5 mm)
The above paste is pasted using 30 g per 30.3 cm × 30.3 cm, cold pressure (10 kg / cm ² ) is applied at room temperature for 20 minutes, and after decompressing, it is left for 30 minutes, and further hot pressed at 115 to 125 ° C. (1
0 kg / cm ² ) was added for 90 seconds to produce plywood. At the time of manufacturing this plywood, no odor due to Fenobucarb was felt.

Comparative Example 1 In Production Example 14, 150 g of diisobutyl adipate
Comparative composition (1) containing 15% by weight of fenocarb was obtained by the same procedure as in Production Example 14 except that 150 g of phenylxylylethane was used instead. The average particle size of the obtained microcapsules was 21 μm. Comparative Example 2 In Production Example 14, diisobutyl adipate 150 g
A comparative composition (2) containing 15% by weight of fenocarb was obtained by the same procedure as in Production Example 14 except that Solvesso 200 (an aromatic solvent manufactured by Exxon Chemical Co., Ltd.) was used instead. The average particle size of the obtained microcapsules was 18 μm. Comparative Example 3 In Production Example 14, diisobutyl adipate 150 g
A comparative composition (2) containing 15% by weight of fenocarb was obtained by the same procedure as in Production Example 14 except that Solvesso 150 (an aromatic solvent manufactured by Exxon Chemical Co., Ltd.) was used instead. The average particle size of the obtained microcapsules was 19 μm. Comparative Example 4 In Production Example 14, diisobutyl adipate 150 g
A comparative composition (2) containing 15% by weight of fenocarb was obtained by the same procedure as in Production Example 14 except that Solvesso 100 (an aromatic solvent manufactured by Exxon Chemical Co., Ltd.) was used instead. The average particle size of the obtained microcapsules was 19 μm.

Test Example 1 A 5 cm square gypsum board was uniformly coated with 3 ml of a 1% by weight water-diluted solution of each composition shown in Table 1 below and air-dried. Then, it was left for 3 days under direct sunlight, and the degree of discoloration on the surface of the gypsum board was observed. The results are shown in Table 1.
In the table, the degree of discoloration is represented by the following index. 1 ... Almost no discoloration 2 ... Some discoloration 3 ... Significant discoloration 4 ... Significant discoloration

[0028]

[Table 1] As shown in the above table, the composition of the present invention shows almost no discoloration due to light irradiation.

Test Example 2 500 g of soil was treated with 25 g of a 1% by weight water-diluted solution of each composition shown in Table 2 below, the treated soil was placed in a petri dish, and 20 termite termite workers were released and 3 days later. Observed life and death. In addition, the treated soil under dark conditions of 40 ℃ 3
Similarly, for those stored for a month, 20 dead termite worker ants were similarly released, and life and death were observed 3 days later. The results are shown in Table 2.

[Table 2] As shown in the above table, the composition of the present invention is a composition effective for controlling termites over a long period of time.

Test Example 3 The composition of the present invention (14) was prepared by packing the soil in a box having a length of 50 cm, a width of 50 cm, and a depth of 30 cm so that the soil has a depth of 10 cm.
1.25 liters of a 1% by weight diluted solution of water was sprayed. Immediately after spraying and after storage at 40 ° C. for a predetermined number of days, 100 termite termite worker ants were released in each box, and life or death was observed on the next day. The results are shown in Table 3.

[Table 3]

Test Example 4 The insect-repellent plywood obtained in Production Example 19 was cut into 8 cm × 5 cm pieces, an aluminum plate having 32 holes was laid on the plywood, and the larva of Beetle beetle was placed in each hole, and each hole was made with artificial feed. After burying, another pest board (8 cm x 5 cm) obtained in Production Example 19 was overlaid on the aluminum plate. When the insect-repellent plywood was examined after storage for 2 months, no evidence of being bitten by the flaked flatworm was found.

[0032]

INDUSTRIAL APPLICABILITY The composition of the present invention is an excellent composition that maintains insecticidal efficacy for a long period of time and does not cause problems such as discoloration of wood, etc. It is particularly effective in controlling unpleasant pests and the like.

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seiji Iuchi 4-2-1 Takashi Takarazuka-shi, Hyogo Sumitomo Chemical Co., Ltd. (72) Inventor Masao Ogawa 4-2-1 Takashi Takarazuka-shi, Hyogo Sumitomo Chemical Industry Co., Ltd. (56) Reference JP-A-49-31829 (JP, A) JP-A-2-36102 (JP, A) JP-A-3-218301 (JP, A) JP-A-3-112902 ( JP, A) JP 3-72402 (JP, A) JP 1-295948 (JP, A) JP 1-224307 (JP, A) JP 61-249904 (JP, A) JP Sho 63-233902 (JP, A) JP 59-143535 (JP, A) JP 49-93542 (JP, A) JP 3-148201 (JP, A) JP 64-40025 (JP , A) Welling, W.A. , Synerg ism of organophosp horus inscitides by diety maleate and related compounds in houseflies, Pestic. Biochem. P hysiol. , 1985, Vol. 23, No. 3, pp. 358-369 (58) Fields surveyed (Int.Cl. ⁷ , DB name) A01N 47/10-47/26 A01N 25/28 CA (STN) REGISTRY (STN)

Claims (6)

(57) [Claims] 1. A microencapsulated insecticidal composition comprising an aliphatic monocarboxylic acid ester having a total carbon number of 8 to 34.
A wood pest control composition for treating wood or outdoor walls of a house, which comprises a ter or aliphatic dicarboxylic acid ester and a carbamate insecticide compound as an active ingredient. 2. The average particle size of the microcapsules is 5 to 80 μm.
The wood pest control composition according to claim 1, which is m. 3. The wood pest control composition according to claim 1 or 2, wherein the wood pest is a termite or a flat beetle. 4. The wood pest control composition according to claim 1, wherein the carbamate insecticidal compound is one or more selected from fenobucarb, propoxur, xylylcarb, metolcarb and isoprocarb. . 5. The wood pest control composition according to claim 1, wherein the carbamate insecticidal compound is fenobucarb. 6. The wood or outdoor wall treatment of a house is a wood surface treatment of a house or a concrete surface treatment.
The wood pest control composition according to any one of 1.