JPH05901A - Improved controller of harmful organism - Google Patents

Abstract

(57) [Summary] [Structure] Pest control ingredients and general formula [Chemical Formula 3] (In the formula, R ¹ represents a C ₁ -C ₄ alkyl group, R ² represents a hydrogen atom or a C ₁ -C ₄ alkyl group, and n is 1-5.
Indicates 0. Pest control agent containing at least one silicone oil having [Effect] The control agent of the present invention has improved wettability and permeability,
It has a suitable fixing property in wood, has a long-lasting effect, and has low toxicity, so it is useful as a wood pest control agent.

Description

Detailed Description of the Invention

[0001]

[Object of the Invention]

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wood pest control agent having excellent durability.

[0003]

2. Description of the Related Art Conventionally, compositions for controlling wood pests such as wood pests, rot fungi, and molds are, for example, emulsions of 3-bromo-2,3-diiodo-2-propenylethyl carbonate, Emulsion of p-chlorophenyl-3-iodopropargylformal, chlorpyrifos and 3-bromo-
Oil mixtures with 2,3-diiodo-2-propenyl ethylcarbonate, oil mixtures with permethrin and 3-bromo-2,3-diiodo-2-propenylethylcarbonate, etc. are known, but the effects are long-lasting. In terms of properties, it is not always satisfactory, and in order to reduce the number of times of application and to reduce the amount of control agent used as a whole, it is desired to develop a control agent having excellent durability.

[0004]

DISCLOSURE OF THE INVENTION An object of the present invention is to provide a wood pest control agent having excellent durability.

[0005]

[Means for Solving the Problems] In order to develop a wood pest control agent having excellent persistence of efficacy, the present inventors have
As a result of intensive research over many years, by blending a specific silicone oil with a pest control component, wettability and permeability are improved, and it has an appropriate fixing property in wood,
The present invention has been completed by finding a wood pest control agent having excellent durability.

[0006]

The present invention comprises pest control ingredients and general formula

[0007]

[Chemical 2]

(Wherein R ¹ represents a C ₁ -C ₄ alkyl group, R ² represents a hydrogen atom or a C ₁ -C ₄ alkyl group, and n represents 1-50). It is characterized by containing at least one of conoil. The pest controlling component of the present invention may be an antiseptic, an insect repellent component or a mixed component thereof, and is preferably a mixed component of an antiseptic component and an insect repellent component of an antiseptic component.

The antiseptic component used in the present invention is a decay fungus,
It is effective for controlling molds, has low toxicity, and has oil solubility, and for example, a halopropargyl-based preservative such as 3-iodo-2-propynylbutylcarbamate and parachlorophenyl 3-iodopropargylformal; 3-
Haloallyl preservatives such as bromo-2,3-diiodo-2-propenyl ethyl carbonate (Samplus), 2,3,3-triiodoallyl alcohol, 3-bromo-2,3-diiodoallyl alcohol; 2 , 4,6-Tripromophenol, 4-bromo-2,5-dichlorophenol, 2,4,5
-Trichlorophenol, 2,4,6-trichlorophenol and other trihalophenol preservatives; pentachlorophenyl laurate, monochloronaphthalene and other haloaryl preservatives; 2-mercaptobenzothiazole, 2-
Heteroaryl preservatives such as (4-thiazolyl) -1H-benzimidazole; N-cyclohexyl-N-methoxy-2,5-dimethyl-3-furancarboxamide, N,
Amide-based preservatives such as N-dimethyl-N'-phenyl- (N'-fluorodichloromethylthio) sulfamide; organotin-based preservatives such as bis (tributyltin) oxide and tributyltin phthalate; zinc naphthenate, copper naphthenate, etc. Naphthenic acid metal salt preservative; or Tris-
It may be an aluminum-based preservative such as (N-cyclohexyldiazenium dioxane) -aluminum (NCH-Al), and is preferably 3-iodo-2-propynyl butylcarbamate, parachlorophenyl 3-iodopropargylformal, 3- Bromo-2,3-diiodo-2-propenyl ethyl carbonate, tris- (N-cyclohexyldiazenium dioxane) -aluminum (NCH
-Al), N, N-dimethyl-N'-phenyl (N'-fluorodichloromethylthio) sulfamide.

The insect repellent component used in the present invention is effective for controlling wood pests such as beetle, beetle beetle, flat beetle, termite and the like, has low toxicity, and is oil-soluble. For example, O, O-- Diethyl-O- (α-cyanobenzylideneamino) thiophosphate (phoxime), O, O-dimethyl-O- (3-methyl-4-nitrophenyl) thiophosphate (fenitrothion), O,
O-diethyl-O- (3-oxo-2-phenyl-2H
-Pyridazin-6-yl) phosphorothioate (pyridaphenthione), O, O-diethyl-O-3,5,6-trichloro-2-pyridyl phosphorothioate (chloropyrifos), O, O-dimethyl-O-3,5,6- Trichloro-2-
Pyridyl phosphorothioate (chloropyrifosmethyl), O-isopropoxycarbonyl-1-methylvinyl-O-methylethyl phosphoroamidothioate (propentaphos), 2,4-dichlorophenylethyl-S-propyl phosphorothiolothionate (prothiophos) ) And other organophosphorus insect repellents; 5-benzyl-3-furylmethyl d
l cis / trans-chrysanthemate (resmethrin), 3-phenoxybenzyl d-cis / trans-
Chrysanthemate (phenothrin), 3-phenoxybenzyl dl-cis / trans-3- (2,2-dichlorovinyl) -2,2-dimethyl-1-cyclopropanecarboxylate (permethrin), α-cyano-3- Phenoxybenzyl 2,2-dimethyl-3- (1,2,2,2-tetrabromoethyl) cyclopropanecarboxylate (tralomethrin), α-cyano-3-phenoxybenzyl dl-
Cis / trans-3- (2,2-dichlorovinyl) -2,2-
Dimethylcyclopropanecarboxylate (cypamethrin), α-cyano-3-phenoxybenzyl dl-cis / trans-3- (2,2-dibromovinyl) -2,2-dimethylcyclopropanecarboxylate (deltamethrin), [1α, 3α (Z)]-(±) -3- (2-chloro-3,3,3-trifluoro-1-propenyl) -2,2-
Dimethylcyclopropanecarboxylate (bifenthrin), 2- (4-ethoxyphenyl) -2-methylpropyl-3-phenoxybenzyl ether (ethofenbrox), dl-3-allyl-2-methyl-4-oxo-2- Pyrethroid insecticides such as cyclopentenyl dl-cis / trans chrysanthemate (allethrin) and pyrethrin; or 2-isopropoxyphenylmethylcarbamate (propoxur), 2,3-isopropylidenedioxyphenylmethylcarbamate (benziocarb) and the like It may be a carbamate insect repellent, and is preferably foxime, chlorpyrifos, chloropyrifosmethyl, propentaphos, etofenprox, permethrin, tralomethrin, cypamethrin, deltamethrin, propoxur.

In the compound (I) of the present invention, the C ₁ -C ₄ alkyl group of R ¹ and R ² may be, for example, methyl, ethyl, propyl, isopropyl or butyl group, preferably methyl or ethyl. It is a group, More preferably, it is a methyl group. R ² is preferably a hydrogen atom or a methyl group, n is preferably 1-30, and more preferably 1-10.

In the control agent of the present invention, the amount of silicone oil is preferably 0.0 based on the pest control component.
5-5, more preferably 0.1-3, and particularly preferably 0.2-1.5. When the wood pest controlling component is a mixture of an antiseptic component and an insect repellent component, the weight mixing ratio of the antiseptic component and the insect repellent component is such that when the insect repellent component is an organophosphorus compound, a synergist such as S-421. For insect repellent components (hereinafter the same) including 0.1 to 0.1 (preferably,
0.5-1.5), and when the insect repellent is a pyrethroid type, it is 0.3-5 (preferably 0.
5-3), and when the insect repellent component is a carbamate type, 0.1-3 (preferably 0.5-1.
5).

[0013]

INDUSTRIAL APPLICABILITY The control agent of the present invention has improved wettability and penetrability, has a proper sticking property in wood, and as shown in the following test examples, has excellent persistence of efficacy and low toxicity. Therefore, it is extremely useful as a chemical for controlling wood pests. The pesticide of the present invention may contain BHT, BH, if necessary.
A, N- (ethylhexyl) -1-isopropyl-4-
Methylbicyclo [2.2.2] oct-5-ene-2,3-dicarboximide (Cinepyrine 500), N- (2-
Ethylhexyl) -bicyclo [2.2.1] -hept-5-
Ene-2,3-dicarboximide (MGK-264), piperonyl butoxide, isobornyl thiocyanoacetate IBTA), 2,2 ', 3,3,3,3', 3 ', 3'-octachloro Synergists such as dipropyl ether (S-421) or known diluents,
Emulsifiers, wetting agents, decomposing agents, sticking agents, potency extenders, dispersion stabilizers, etc. can be added, and they can be formulated into oils, emulsions, wettable powders, pastes, powders, etc. in accordance with ordinary methods. it can. A synergist such as S-421 can also be used as an insect repellent component and / or an antiseptic component. In addition, the control agent of the present discovery can be appropriately formulated, and wood treatment can be performed using methods such as pressure injection, diffusion, hot and cold bath dipping, application, spraying (spraying), and perforation injection.

The present invention will be specifically described below with reference to formulation examples and test examples, but the present invention is not limited thereto.

[0015]

【Example】

[0016]

[Formulation Example 1] 1 part by weight of chloropyrifos and 3-bromo-
0.75 parts by weight of 2,3-diiodo-2-propenylethyl carbonate was dissolved in 5 parts by weight of kerosene (JIS K 2203), and dimethyl silicone oil (Shin-Etsu Chemical Co., Ltd.)
Manufactured, R ¹ = R ² = CH ₃ , n = 7) 0.5 part by weight is added,
Furthermore, the kerosene is added and dissolved uniformly, and the total amount is 1
An oil solution was obtained as 100 parts by weight.

[0017]

[Formulation Example 2] 0.6 part by weight of oxime, 0.4 part by weight of octachlorodipropyl ether and 0.75 of 3-bromo-2,3-diiodo-2-propenyl ethyl carbonate.
By dissolving 5 parts by weight of kerosene (JIS K 2203) in 5 parts by weight, dimethyl silicone oil (Shin-Etsu Chemical Co., Ltd., R ¹ = R)
0.5 parts by weight of ² = CH ₃ , n = 7) was added, and the kerosene was further added and uniformly dissolved to obtain an oil solution with a total amount of 100 parts by weight.

[0018]

[Formulation Example 3] 1 part by weight of propentaphos, Tris- (N-
Cyclohexyldiazenium dioxane) Aluminum
(NCH-A1) 0.5 part by weight and N-cyclohexyl-N-
Methoxy-2,5-dimethyl-3-furancarboxamide (0.5 parts by weight) was dissolved in 10 parts by weight of kerosene (JIS K2203), and methylhydrogen polysiloxane oil (manufactured by Shin-Etsu Chemical Co., Ltd., R ¹ = CH ₃ ). , R ² = H, n = 3)
It was dissolved in 1.0 part by weight, and the kerosene was further added and uniformly dissolved to obtain an oil solution with a total amount of 100 parts by weight.

[0019]

Formulation Example 4 Permethrin 0.2 parts by weight, octachlorodipropyl ether 1 part by weight and p-chlorophenyl-
3-Iodopropargyl formal 1 part by weight to kerosene (JI
S K2203) dissolved in 10 parts by weight of dimethyl silicone oil (manufactured by Shin-Etsu Chemical Co., Ltd., R ¹ = R ² = CH ₃ , n =
7) 1.0 part by weight was added, and the kerosene was further added and uniformly dissolved to obtain an oil solution with a total amount of 100 parts by weight.

[0020]

[Formulation Example 5] 20 parts by weight of chlorobilifos, 3-bromo-
2,3-diiodo-2-propenylethyl carbonate 2
0 parts by weight and 12 parts by weight of TP-971 (manufactured by Nippon Emulsifier Co., Ltd., an emulsifier: a mixture of polyoxyethylene alkyl allyl ether and calcium dodecylbenzene sulfonate) were mixed, and methylhydrogenpolysiloxane oil (Shin-Etsu Chemical Co., Ltd. Co., Ltd., R ¹ = CH ₃ , R ² = H, n =
3) Add 10 parts by weight of kerosene (JIS K 2203),
The mixture was uniformly mixed to obtain a total amount of 100 parts by weight to obtain an emulsion.

[0021]

[Formulation Example 6] 4 parts by weight of permethrin, 20 parts by weight of octachlorodipropyl ether, 20 parts by weight of 3-bromo-2,3-diiodo-2-propenyl ethyl carbonate and TP-971 (manufactured by Nippon Emulsifier Co., Ltd., Emulsifier: Mixture of 10 parts by weight of a mixture of polyoxyethylene alkyl allyl ether and calcium alkylbenzene sulfonate) was uniformly mixed, and methylhydrogen polysiloxane oil (manufactured by Shin-Etsu Chemical Co., Ltd., R ¹ = CH ₃ , R ² = H) was used. , N = 3) 1
An emulsion was obtained by adding 0 parts by weight and further adding xylene (JIS K 2435) and mixing them uniformly to obtain a total amount of 100 parts by weight.

[0022]

[Formulation Example 7] 20 parts by weight of p-chlorophenyl-3-iodopropargyl formal, 20 parts by weight of octachlorodipropyl ether and TP-971 (manufactured by Nippon Emulsifier Co., Ltd., emulsifier: polyoxyethylene alkyl allyl ether and alkylbenzene sulfonic acid) 12 parts by weight of a mixture of calcium) is uniformly mixed, and methylhydrogen polysiloxane oil (manufactured by Shin-Etsu Chemical Co., Ltd., R ¹ = CH ₃ , R
² = H, n = 3) 10 parts by weight was added, and further xylene (JI
Add SK 2435) and mix evenly.
The emulsion was obtained as parts by weight.

[0023]

[Formulation Example 8] 12 parts by weight of phoxime, 8 parts by weight of octachlorodipropyl ether, 3-bromo-2,3-diiodo-
20 parts by weight of 2-propenyl ethyl carbonate and TP
-971 (manufactured by Nippon Emulsifier Co., Ltd., emulsifier: mixture of polyoxyethylene alkyl allyl ether and calcium dodecylbenzene sulfonate) 12 parts by weight were mixed, and methylhydrogen polysiloxane oil (manufactured by Shin-Etsu Chemical Co., Ltd., R 10 parts by weight of ¹ = CH ₃ , R ² = H, n = 3) were added, and kerosene (JIS K 2203) was further added and mixed uniformly to obtain an emulsion having a total amount of 100 parts by weight.

[0024]

[Formulation Example 9] 0.02 part by weight of tralomethrin, 1.0 part by weight of octachlorodipropyl ether and 1 part by weight of p-chlorophenyl-3-iodopropargyl foremar are dissolved in 10 parts by weight of kerosene (JIS K 2203), Further, dimethyl silicone oil (manufactured by Shin-Etsu Chemical Co., Ltd., R ¹ = R ²
= CH ₃ , n = 7) 1.0 part by weight was further added, and the kerosene was further added to uniformly dissolve the kerosene to obtain an oil solution with a total amount of 100 parts by weight.

[0025]

[Formulation Example 10] A mixture of 20 parts by weight of propentaphos and 20 parts by weight of 3-bromo-2,3-diiodo-2-propenylethyl carbonate was added to Vannock-TW (manufactured by Nippon Emulsifier Co., Ltd., wetting agent: alkylallyl sulfonic acid). Mixture of sodium 45%, white carbon 45% and carboxymethylcellulose 10%) 6 parts by weight, parachol-
2 parts by weight of SW (manufactured by Nippon Emulsifier Co., Ltd., a dispersant: a mixture of polyoxyalkylene polystyrylphenyl ether and calcium dodecylbenzenesulfonate), methylhydrogen polysiloxane oil (manufactured by Shin-Etsu Chemical Co., Ltd., R ¹ =) 10 parts by weight of CH ₃ , R ² = H, n = 3) and 47 parts by weight of white carbon were added and uniformly mixed to obtain a wettable powder.

[0026]

[Formulation Example 11] 40 parts by weight of p-chlorophenyl-3-iodopropargyl formal, methylhydrogenpolysiloxane oil (manufactured by Shin-Etsu Chemical Co., Ltd., R ¹ = CH
₃ , R ² = H, n = 3) 20 parts by weight and TP-971 (manufactured by Nippon Emulsifier Co., Ltd., emulsifier: a mixture of polyoxyethylene alkyl allyl ether and calcium dodecylbenzene sulfonate) are mixed, and Add monoethylene glycol monobutyl ether, mix evenly,
An emulsion was obtained in a total amount of 100 parts by weight.

[0027]

[Test Example 1] As a preservative, 3-bromo-2,3-diiodo-2-propenyl ethyl carbonate (A-
1) and p-chlorophenyl-3-iodopropargylformal (A-2), and chlorpyrifos (B-1) and propentanephos (B-2) as insect repellent components.
Dimethyl silicone oil (manufactured by Shin-Etsu Chemical Co., Ltd., R ¹ = R ² = CH ₃ , n =
7: C-1) and methylhydrogen polysiloxane (manufactured by Shin-Etsu Chemical Co., Ltd., R ¹ = CH ₃ , R ² = H, n
= 3: C-2) and further using TP-971 (manufactured by Nippon Emulsifier Co., Ltd., emulsifier: polyoxyethylene styryl phenyl ether and calcium dodecylbenzenesulfonate mixture: D-1). Oil solutions and emulsions having the components shown in were prepared. A piece of cedar or beech wood having a thickness of 5 mm, a width of 20 mm, and a length of 40 mm is immersed in this undiluted solution of oil or an emulsion diluted 20 times with water for 5 seconds, air-dried, and then the following weathering operation consisting of leaching and volatilization operation is carried out 7 times. Or it was repeated 14 times. For the leaching operation, the same treatments were put together, and soaked in still water at 25 ± 3 ° C. for 5 hours so as not to come into contact with each other, so that the leached portion was leached. Volume ratio of water to test body is 10: 1
Then, each time the operation was repeated, it was replaced with new water. For the volatilization operation, the test body that had undergone the leaching operation was lightly drained, and then immediately left in a circulating dryer at a temperature of 40 ± 2 ° C. for 19 hours to volatilize. Then, it was dried at 60 ± 2 ° C. for 48 hours using a circulation dryer, and the antiseptic component and insect repellent component in the wood piece were measured. The results are shown in Table 2.

[0028]

[Table 1] ───────────────────────────────── Sample number Component (W / W%) ^*) A- 1 A-2 B-1 B-2 C-1 C-2 D-1 ─────────────────────────────── ── P-1 0.75 − − − 0.5 − − P-1 ′ 0.75 − − − 2.5 − − P-2 − 0.75 − − 0.5 − − P-3 − − 1.0 − 0.5 − − P-3 ′ − − 1.0 − 2.5 − − P-4 − − − 1.0 0.5 − − P-5 20 − 20 − − 10 12 P−C-1 0.75 − − − − − − P−C-2 − 0.75 − − − − − P− C-3 − − 1.0 − − − − P-C-4 − − − 1.0 − − − P-C-5 20 −20 − − − 12 12 ───────────────── ───────────────── *) For sample numbers P-5 and PC-5, xylene (JIS K 2435) was added to make the total amount 100 parts by weight. An emulsion was prepared as follows. With respect to samples of other sample numbers, white kerosene was added so that the total amount became 100 parts by weight to prepare oil solutions.

[0029]

[Table 2] ───────────────────────────── Specimen number Drug measurement amount: mg (residual rate:%) A-1 Weather resistance Before operation After 7 weatherproof operations After 14 weatherproof operations ───────────────────────────── P-1 8.12 5.62 (69.2) 3.65 (45.0) P-1 '8.46 6.23 (73.6) 5.68 (67.1) P-5 8.46 6.75 (79.8) 5.85 (69.1) P-C-1 8.08 2.96 (36.6) 1.79 (22.2) P-C-5 8.55 4.94 ( 57.8) 2.88 (33.7) ───────────────────────────── A-2 Before weatherproof operation 7 times after weatherproof operation 14 times After ───────────────────────────── P-2 8.96 5.66 (63.2) 3.66 (40.8) P-C-2 10.22 2.84 ( 27.8) 1.67 (16.3) ───────────────────────────── B-1 Before weatherproof operation 7 times After weatherproof operation 14 times Later ─── ────────────────────────── P-3 10.89 8.34 (76.6) 5.61 (51.5) P-3 '10.96 8.61 (78.6) 7.18 (65.5 ) P-C-3 11.25 4.79 (42.6) 3.38 (30.0) ───────────────────────────── B-2 Before weatherproof operation After 7 weather-proof operations After 14 weather-proof operations ───────────────────────────── P-4 10.34 8.18 (79.1) 5.91 (57.2 ) P-C-4 10.65 4.82 (45.3) 3.47 (32.6) ──────────────────────────────

[0030]

[Test Example 2] Table 1 of Test Example 1 was applied to a piece of cedar or beech wood (2 × 4 × 0.5 cm) whose wooden surface was sealed with an epoxy resin.
The undiluted oil solution or emulsion 20 times diluted with water is
A test piece was obtained by applying to 10 g / m ² . This test piece was tested according to the preservative efficacy test method of Japan Wood Preservation Association Standard No. 1 described below. (1) Weathering operation In the weathering operation, the operation of leaching and the operation of volatilization were alternately repeated 30 times. For the leaching operation, the same treatments were put together, and soaked in still water at 25 ± 3 ° C. for 5 hours so as not to come into contact with each other, so that the leached portion was leached. Volume ratio of water to test body is 10: 1
Then, each time the operation was repeated, it was replaced with new water. For the volatilization operation, the test body that had undergone the leaching operation was lightly drained, and then immediately left in a circulating dryer at a temperature of 40 ± 2 ° C. for 19 hours to volatilize. After the weathering operation was completed, the test body was dried at 60 ± 2 ° C. for 48 hours in a circulation dryer and then left in a desiccator for about 30 minutes to weigh (W ₃ ) up to 0.01 g.

(2) Antibacterial operation The antibacterial operation was performed on the test piece that had been weather-proofed. Treated specimens and non-treated specimens are placed separately on each Teflon plate frame, 3 per culture bottle, and sterilized.
The surface of 0 × 5 mm was placed on the surface of the test fungus (Ceratophyllum edulis or Agaricus edulis) so that it was placed at a temperature of 26 ± 2 ° C. and a relative humidity of 70% or higher for 8 weeks. After 8 weeks, remove the specimen, carefully remove the mycelium and other deposits on the surface, air-dry for about 24 hours, and then dry in a circulating dryer at a temperature of 60 ± 2 ° C for 48 hours, about 30 minutes. After standing in a desiccator, its weight (W ₄ ) was weighed to 0.01 g. The efficacy is represented by the weight reduction rate calculated by the following formula, and the results are shown in Table 3.

[0032]

TABLE 3 ───────────────────────────────── specimen number efficacy (weight reduction rate:%) Sugi - Oousu Bu Ratake Buna-Karatake No weatherproof operation With weatherproof operation Without weatherproof operation With weatherproof operation ────────────────────────────────── P- 1 0 0 0.3 2.7 P-1 '0 0 0 1.6 P-2 0 0 0 3.3 P-5 0 0 0 2.4 P-C-1 2.3 14.7 1.8 14.3 P-C-2 1.8 12.3 1.3 24.5 P-C-5 0.5 9.3 2.8 12.7 Untreated 20.1 − 39.3 − ──────────────────────────────────

[0033]

[Test Example 3] As a preservative, 3-bromo-2,3-diiodo-2-propenyl ethyl carbonate (A-1)
As an insect repellent, chlorpyrifos (B-1),
Using oxime (B-3) and octachlorodipropyl ether (B-4), and further using dimethyl silicone oil (manufactured by Shin-Etsu Chemical Co., Ltd., R ¹ =) as silicone oil.
The oil agent shown in Table 4 was prepared using R ² = CH ₃ , n = 7: C-1). Using this undiluted oil solution, a test was conducted in the same manner as in Test Example 2. The results are shown in Table 5.

[0034]

[Table 4] ───────────────────────────────── Sample number Component (W / W%) ^*) A- 1 B-1 B-3 B-4 C-1 ───────────────────────────────── Q-1 0.5 1.0 − − 1.0 Q-2 0.74 1.0 − − 1.0 Q-3 1.0 − 0.6 0.4 1.0 Q-4 1.25 − 0.6 0.4 1.0 Q-C-1 0.5 1.0 − − − Q-C-2 0.75 1.0 − − − Q- C-3 1.0-0.6 0.4-Q-C-4 1.25-0.6 0.4-────────────────────────────────── -*) White kerosene was added to make the total amount 100 parts by weight to prepare an oil solution.

[0035]

TABLE 5 ───────────────────────────────── specimen number efficacy (weight reduction rate:%) Sugi - Oousu Bu Ratake Buna-Karatake No weatherproof operation With weatherproof operation Without weatherproof operation With weatherproof operation ────────────────────────────────── Q- 1 0 0 0 1.3 Q-2 0 0 0 0.2 Q-3 0 0 0 0.8 Q-400 0 0 1.1 Q-C-1 2.5 12.5 2.0 12.9 Q-C-2 0.8 8.8 1.3 15.0 Q-C-3 0.5 16.7 1.8 21.0 Q-C-4 1.2 12.1 1.5 15.3 Untreated 20.1 − 39.3 − ───────────────────────────────── ─

[0036]

[Test Example 4] As a preservative, 3-bromo-2,3-diiodo-2-propenyl ethyl carbonate (A-1)
And p-chlorophenyl-3-iodopropargyl formal (A-2), and permethrin (B-5), tralomethrin (B-6) and octachlorodipropyl ether (B-4) as insect repellents. As silicon oil, methylhydrogen polysiloxane oil (manufactured by Shin-Etsu Chemical Co., Ltd., R ¹ = CH ₃ , R ² =)
The oil solutions shown in Table 6 were prepared using H, n = 3: C-2). Using this undiluted oil solution, in the same manner as in Test Example 2,
The test was conducted. The results are shown in Table 7.

[0037]

[Table 6] ───────────────────────────────── Sample number Component (W / W%) ^*) A- 1 A-2 B-5 B-6 B-4 C-2 ───────────────────────────────── R -1 0.5 -0.2 -0.75 1.0 R-2 0.75 -0.2 -0.75 1.0 R-3 -0.5 -0.03 0.75 1.0 R-4 -0.75 -0.03 0.75 1.0 R-C-1 0.5 -0.2 -0.75 -RC 2 0.75 − 0.2 − 0.75 − R−C−3 − 0.5 − 0.03 0.75 − R−C−4 − 0.75 − 0.03 0.75 − ────────────────────── ──────────── *) White kerosene was added so that the total amount became 100 parts by weight to prepare an oil solution.

[0038]

Table 7 ───────────────────────────────── specimen number efficacy (weight reduction rate:%) Sugi - Oousu Bu Ratake Buna-Karatake No weatherproof operation With weatherproof operation Without weatherproof operation With weatherproof operation ─────────────────────────────────R- 1 0 4.4 0 8.0 R-2 0 2.4 0 1.8 R-3 0 1.8 0 2.3 R-4 0 0.3 0 1.4 R-C-1 3.5 15.5 2.4 26.4 R-C-2 0.5 6.8 1.8 23.8 R-C-3 1.8 18.3 1.6 27.3 R-C-4 0 9.3 0 21.3 Untreated 20.1 − 39.3 − ───────────────────────────────── ─

[0039]

[Test Example 5] As a preservative, 3-bromo-2,3-diiodo-2-propenyl ethyl carbonate (A-1)
Chloropyrifos (B-1) as an insect repellent,
Using permethrin (B-5), propentaphos (B-7) and octachlorodipropyl ether (B-4),
Methylhydrogen polysiloxane oil (Shin-Etsu Chemical Co., Ltd., R ¹ = CH ₃ , R as silicon oil)
² = H, n = 3: C-2), and further TP-971 (manufactured by Nippon Emulsifier Co., Ltd., emulsifier: mixture of polyoxyethylene styryl phenyl ether and calcium dodecylbenzenesulfonate: D-1). Thus, the emulsions shown in Table 8 were prepared. A test piece was prepared and tested in the same manner as in Test Example 2 using a solution obtained by diluting this emulsion 20 times with water. The results are shown in Table 9.

[0040]

[Table 8] ───────────────────────────────── Sample number Component (W / W%) ^*) A- 1 B-1 B-5 B-7 B-4 C-2 D-1 ─────────────────────────────── ── S-1 20 20 − − − 10 10 S-2 20 − − 10 10 10 10 S-3 15 − 4 − 20 10 10 S-4 20 − 4 − 20 10 10 S-C-1 20 20 − − − − 10 S-C-2 20 − − 10 10 − 10 S-C-3 15 − 4 − 20 − 10 S-C-4 20 − 4 − 20 − 10 ─────────── ─────────────────────── *) An emulsion was prepared by adding xylene (JIS K 2435) so that the total amount was 100 parts by weight.

[0041]

TABLE 9 ───────────────────────────────── specimen number efficacy (weight reduction rate:%) Sugi - Oousu Bu Ratake Buna-Karatake No weatherproof operation With weatherproof operation Without weatherproof operation With weatherproof operation ───────────────────────────────── S- 1 0 0.1 0 1.3 S-2 0 1.1 0 0.7 S-3 0 1.7 0 2.2 S-4 0 2.3 0 1.8 S-C-1 0 9.3 0 12.7 S-C-2 0.3 6.7 1.3 29.9 S-C-3 1.8 7.7 2.5 31.2 S-C-4 2.4 6.4 2.9 25.2 Untreated 20.1 − 39.3 − ──────────────────────────────── ─

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display area A01N 55:00) E 7106-4H

Claims (5)

[Claims] 1. A pest controlling component and a general formula: (In the formula, R ¹ represents a C ₁ -C ₄ alkyl group, and R 1
² represents a hydrogen atom or a C ₁ -C ₄ alkyl group, and n represents 1-50. An improved wood pest control agent comprising at least one silcon oil having 2. The pest control agent according to claim 1, wherein the pest control component is an antiseptic component. 3. The pest control agent according to claim 1, wherein the pest controlling component is a mixture of an antiseptic component and an insect repellent component, and the weight mixing ratio thereof is 0.1-5 with respect to the insect repellent component. 4. The weight mixing ratio of the pest controlling component and the silicone oil is 0.05-5 with respect to the pest controlling component.
The control agent according to claim 1, which is 5. The control agent according to claim 1, wherein the weight mixing ratio of the pest controlling component and the silicone oil is 0.1-3 with respect to the pest controlling component.