JPH0570301A - Noxious life controlling agent - Google Patents

Abstract

PURPOSE:To provide an agent for controlling noxious life in wood, exhibiting improved wettability and permeating property and moderate fixability in wood and having excellent durability of the activity and low toxicity. CONSTITUTION:The objective noxious life controlling agent for wood contains (A) a noxious life controlling component consisting of an antiseptic component having low toxicity, soluble in oil and effective for the control of wood-decay bacteria and fungi, an insecticidal component having low toxicity, soluble in oil and effective for the control of wood vermin such as long-horned beetle and termite and their mixture and (B) an acrylic polymer, preferably polymethyl acrylate, polyethyl (meth)acrylate or polybutyl methacrylate having a molecular weight of 40,000-50,000. The amount of the component B is 0.05-5 pts.wt., especially 0.2-1.5 pts.wt. based on 1 pt.wt. of the component A. The antiseptic component is e.g. halopropargyl, haloallyl, trihalophenol, amide or organotin antiseptic and the insecticide component is e.g. organic phosphorus, pyrethroidal or carbamate insecticide.

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 efficacy and connectivity.

[0003]

2. Description of the Related Art Conventionally, compositions for controlling wood pests such as wood pests, rot fungi, and molds are known, for example, emulsions of 3-bromo-2,3-diiodo-2-propenyl ethyl carbonate, p-Chlorophenyl-3-iodopropargylformal emulsion, mixed oil of chloropyrifos and 3-bromo-2,3-diiodo-2-propenyl ethyl carbonate, permethrin and 3-bromo-2,3-diiodo-2-propenyl
Ethyl carbonate mixed oils and the like are known, but in terms of the persistence of efficacy, they are not always satisfactory,
In order to reduce the number of times of execution and to reduce the total amount of the control agent used, it is desired to develop a control agent having excellent sustainability of efficacy.

[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 durability,
As a result of repeated intensive research over many years, by adding an acrylic polymer to the pest control component, the wettability and the 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 is characterized by containing a pest controlling component and an acrylic polymer. The pest controlling component of the present invention may be an antiseptic composition, an insect repellent component and a mixed component thereof, preferably an antiseptic component and a mixed component of an antiseptic component and an insect repellent component.

The antiseptic component used in the present invention is a rot fungus,
It is effective in controlling molds, has low toxicity, and has oil solubility. For example, 3-iodo-2-propynyl butylcarbamate, parachlorophenyl 3-iodopropargylformal and other halopropargyl-based preservatives; 3-bromo
-2,3-diiodo-2-propenyl ethyl carbonate (SAMPLUS), 2,3,3-triiodoallyl alcohol,
3-Bromo-2,3-diiodoallyl alcohol and other haloallyl preservatives; 2,4,6-tribromophenol, 4-bromo-
Trihalophenol preservatives such as 2,5-dichlorophenol, 2,4,5-trichlorophenol and 2,4,6-trichlorophenol; haloaryl preservatives such as pentachlorophenyl laurate and monochloronaphthalene; 2-mercaptobenzo Heteroaryl preservatives such as thiazole and 2- (4-thiazolyl) -1H-benzimidazole; N-cyclohexyl-N-methoxy-2,5-dimethyl-3-furancarboxamide, N, N-dimethyl-N'- Amide-based preservatives such as phenyl- (N'-fluorodichloromethylthio) sulfamide;
Organic tin preservatives such as bis (tributyltin) oxide and tributyltin phthalate; metal naphthenate preservatives such as zinc naphthenate and copper naphthenate; or Tris-
It may be an aluminum-based preservative such as (N-cyclohexyldiazenium dioxane) -aluminum (NCH-Al),
Suitably, 3-iodo-2-propynyl butyl carbamate, parachlorophenyl 3-iodopropargyl formal, 3-bromo-2,3-diiodo-2-propenyl ethyl carbonate, tris- (N-cyclohexyldiazenium dioxane) -Aluminum (NCH-Al), N, N-dimethyl
-N'-phenyl- (N'-fluorodichloromethylthio)
It is sulfamide.

The insect repellent component used in the present invention is effective in controlling wood pests such as beetle, beetle beetle, flat beetle, termite and the like, has low toxicity, and is oil-soluble. For example, 0,0- Diethyl-O- (α-cyanobenzylideneamino) thiophosphate (Foxime), 0,
0-Dimethyl-O- (3-methyl-4-nitrophenyl) thiophosphate (fenitrothion), 0,0-diethyl-O- (3-oxo-2-phenyl-2H-pyridazin-6-yl) phosphorothioate (pyridaphenthion) ), 0,0-diethyl-O- (3
, 5,6-Trichloro-2-pyridyl) phosphorothioate (chloropyrifos), 0,0-dimethyl-O- (3,5,6-trichloro-2-pyridyl) phosphorothioate (chloropyrifosmethyl), O-isopropoxycarbonyl -1-Methylvinyl-0-methylethylphosphoroamidothioate (propentaphos), 2,4-dichlorophenylethyl-S-propylphosphorothiolothioneate (prothiophos) and other organophosphorus insect repellents; 5-benzyl-3 -Furylmethyl dl-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-dimethyl Cyclopropanecarboxylate (pifenthrin), 2- (4-ethoxyphenyl) -2-methylpropyl-3
-Phenoxybenzyl ether (ethofenprox), dl-3-allyl-2-methyl-4-oxo-2-cyclopentenyl dl-cis / trans chrysanthemate (allethrin), pyrethroids and other pyrethroid insecticides; or 2 It may be a carbamate insect repellent such as -isopropoxyphenylmethyl carbamate (propoxur), 2,3-isopropylidenedioxyphenylmethyl carbamate (benziocarb), and preferably, foxime, chloropyrifos, chloropyrifosmethyl, propentaphos, eth They are fenprotux, permethrin, tralomethrin, cypamethrin, deltamethrin and propoxur.

The acrylic polymer used in the present invention is
For example, it may be a polymer such as acrylic acid, methacrylic acid, or an ester of these carboxylic acids (methyl, ethyl, propyl, isopropyl, butyl, s-butyl, isobutyl, t-butyl ester, etc.), and is preferably polyethyl Acrylate, polymethyl acrylate, polymethacrylate, polyethyl methacrylate, polybutyl methacrylate.

Acrylic polymers are other copolymerizable monomers such as monofunctional monomers such as 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate and dimethylaminoethyl methacrylate, and ethylene dimethacrylate and dimethacrylate. It may be a copolymer of polyfunctional monomers such as diethylene glycol methacrylate, triethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, allyl methacrylate, trimethalol propane trimethacrylate, and diethylene glycol dimethacrylate phthalate. .. A particularly suitable molecular weight for acrylic polymers is 40,000-50,00
It is 0. Furthermore, specific examples of the acrylic polymer include, for example,
PEB-4001 (NOF CORPORATION), average molecular weight (MW): 45,00
0), PEB-4002 (manufactured by NOF CORPORATION), average molecular weight (MW): 4
8,000) can be raised.

In the control agent of the present invention, the amount of the acrylic polymer is 0.05-5, preferably 0.1-2, particularly preferably 0.1-2 in terms of a weight mixing ratio with respect to the pest controlling component. , 0.2-1.5. Further, 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, relative to the insect repellent component,
0.1-5, preferably 0.5-when the insect repellent component is an organic phosphorus-based insect repellent component including a synergist such as S-421.
3 (particularly preferably 0.75-2), and when the insect repellent is a pyrethroid type, it is 0.5-5 (particularly preferably 0.75) with respect to the insect repellent including a synergist such as S-421. -3), and when the insect repellent component is a carbamate type, it is 0.5-3 (particularly preferably 0.75-2) with respect to the insect repellent component.

[0012]

INDUSTRIAL APPLICABILITY The control agent of the present invention has improved wettability and penetrability, has an appropriate sticking property in wood, has excellent durability and low toxicity as shown in the following test examples. Therefore, it is extremely useful as a chemical for controlling wood pests. The control agent of the present invention, BHT, BHA, N- (2-
Ethylhexyl) -1-isopropyl-4-methylbicyclo [2.2.2] oct-5-ene-2,3-dicarboximide (Cinepyrin 500), N- (2-ethylhexyl) -bicyclo [2.2.1] -hepta -5-Ene-2,3-dicarboximide (MGK-264), piperonyl butoxide, isobornyl thiocyanoacetate (IBTA), 2,2 ', 3,3,3,
3 ', 3', 3'-octachlorodipropyl ether (S-42
1) etc. synergists or known diluents, emulsifiers, wetting agents, decomposition inhibitors, sticking agents, efficacy extenders, dispersion stabilizers, etc. can be added, and oils, emulsions, hydrates can be added according to conventional methods. It can also be formulated into a drug, a paste, a powder and the like. In addition, S-42
Synergists such as 1 can also be used as insect repellents and / or preservatives. In addition, the control agent of the present invention can be appropriately formulated, and wood treatment can be carried out by a method such as pressure injection, diffusion, hot / cold bath immersion, coating, 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.

[0014]

【Example】

[0015]

[Formulation Example 1] 1 part by weight of chloropyrifos and 3-bromo-2,3
-Dissolve 0.75 parts by weight of diiodo-2-propenyl ethyl carbonate in 5 parts by weight of kerosene (JIS K 2203) and add PE.
Add 0.5 parts by weight of B-4002 (Nippon Oil & Fats Co., Ltd., acrylic polymer), and further add the above kerosene to uniformly dissolve it.
An oil solution was obtained by adjusting the total amount to 100 parts by weight.

[0016]

[Formulation Example 2] Phoxime 0.6 part by weight, octachlorodipropyl ether 0.4 part by weight and 3-bromo-2,3-diiodo-2
-Dissolve 0.75 parts by weight of propenyl ethyl carbonate in 5 parts by weight of kerosene (JISK 2203), add 0.5 parts by weight of PEB-4001 (Nippon Oil & Fats Co., Ltd., acrylic polymer), and further add the kerosene to homogenize it. Dissolve and total 100
An oil solution was obtained as a part by weight.

[0017]

[Formulation Example 3] 1 part by weight of propentanephos, 0.5 part by weight of tris- (N-cyclohexyldiazeniumdioxane) aluminum (NCH-Al) and N-cyclohexyl-N-methoxy-2,5-dimethyl-3-furan 0.5 parts by weight of carboxamide was dissolved in 10 parts by weight of kerosene (JIS K 2203), and 1 part by weight of PEB-4002 (Acrylic polymer manufactured by NOF CORPORATION) was added.
Furthermore, the kerosene was added and dissolved uniformly, and the total amount was 10
An oil solution was obtained as 0 part by weight.

[0018]

[Formulation Example 4] 0.2 parts by weight of permethrin, 1 part by weight of octachlorodipropyl ether, and 1 part by weight of p-chlorophenyl-3-iodopropargyl formal are added to kerosene (JIS K 2203).
It was dissolved in 10 parts by weight, 1 part by weight of PEB-4002 (Nippon Yushi-Seiyaku Co., Ltd., acrylic polymer) was added, and the kerosene was further added and dissolved uniformly to obtain an oil solution with a total amount of 100 parts by weight. ..

[0019]

[Formulation Example 5] 20 parts by weight of chloropyrifos, 3-bromo-2,3-
20 parts by weight of diiodo-2-propenyl ethyl carbonate and 12 parts by weight of TP-971 (manufactured by Nippon Emulsifier Co., Ltd., an emulsifier: a mixture of polyoxyethylene alkylallyl ether and calcium dodecylbenzenesulfonate) are mixed,
20 parts by weight of PEB-4002 (produced by NOF CORPORATION, acrylic polymer) was added, and kerosene (JIS K 2203) was further added and mixed uniformly to obtain an emulsion with a total amount of 100 parts by weight.

[0020]

[Formulation Example 6] 4 parts by weight of permethrin, 20 parts by weight of octachlorodipropyl ether, 3-bromo-2,3-diiodo-2-
20 parts by weight of propenyl ethyl carbonate and Sanimal
12 parts by weight of CPK (manufactured by Nippon Emulsifier Co., Ltd., an emulsifier: a mixture of polyoxyethylene alkyl allyl ether and calcium dodecylbenzene sulfonate) are mixed, and PEB-40
20 parts by weight of 01 (Nippon Oil & Fats Co., Ltd., acrylic polymer) was added, and xylene (JIS K 2435) was further added and mixed uniformly to obtain an emulsion with a total amount of 100 parts by weight.

[0021]

[Formulation Example 7] p-chlorophenyl-3-iodopropargyl formal 20 parts by weight, octachlorodipropyl ether
20 parts by weight and 12 parts by weight of TP-972 (Nippon Emulsifier Co., Ltd., an emulsifier: a mixture of polyoxyethylene alkylallyl ether and calcium dodecylbenzene sulfonate) were mixed, and PEB-4002 (Nippon Yushi Co., Ltd., acrylic) Polymer) was added to 20 parts by weight, and xylene (JIS K 2435) was further added and mixed uniformly to obtain an emulsion with a total amount of 100 parts by weight.

[0022]

[Formulation Example 8] 12 parts by weight of foxime, 8 parts by weight of octachlorodipropyl ether, 20 parts by weight of 3-bromo-2,3-diiodo-2-propenyl ethyl carbonate and Sanimal-CPK
(Manufactured by Nippon Emulsifier Co., Ltd., emulsifier: mixture of polyoxyethylene alkyl allyl ether and calcium dodecylbenzene sulfonate) 12 parts by weight, PEB-4002
(Nippon Yushi Co., Ltd., acrylic polymer) 20 parts by weight was added, and kerosene (JIS K2203) was further added and mixed uniformly.
An emulsion was obtained in a total amount of 100 parts by weight.

[0023]

[Test Example 1] 3-bromo-2.3-diiodine as an antiseptic ingredient
-2-Propenyl ethylcarbonate (A-1) and p-chlorophenyl-3-iodopropargylformal (A-2) were used, and chlorpyrifos (B-1) and propentampos (B-2) were used as insect repellents. Used as an acrylic polymer,
PEB-4002 (Nippon Oil & Fats Co., Ltd .: C-1) was used, and Sanimal-CPK (Nippon Emulsifier Co., Ltd.), an emulsifier: a mixture of polyoxyethylene styryl phenyl ether and calcium dodecylbenzene sulfonate: D- Using 1), oil solutions and emulsions having the components shown in Table 1 were prepared. Thick oil 5mm, width 20mm, length 40mm to this undiluted solution or emulsion diluted 20 times with water.
The Japanese cedar or beech wood pieces were dipped for 5 seconds, air-dried, and then the weathering operation consisting of the following leaching and volatilization operations was repeated 7 or 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, and the leached portion was leached. The volume ratio of water to the test body was set to 10: 1, and fresh water was replaced each time the operation was repeated. For the volatilization operation, the test specimen that had been subjected to the leaching operation was lightly drained and immediately placed in a circulating dryer at a temperature of 40 ± 2 ° C for 19 hours.
It was left to stand for a time 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 chips were measured. The results are shown in Table 2.

[0024]

[Table 1] ────────────────────── Sample number Component (W / W%) ^*) A-1 A-2 B-1 B-2 C -1 D-1 ────────────────────── P-1 0.75 − − − 1.0 − P-2 − 0.75 − − 1.0 − P-3 − − 1.0 − 0.5 − P-4 − − − 1.0 0.5 − P-5 20 − 20 − 10 12 PC-1 0.75 − − − − − PC-2 − 0.75 − − − − PC-3 − − 1.0 − − − PC -4 − − − 1.0 − − PC-5 20 − 20 − − 12 ────────────────────── *) Sample number P-5 and PC-5 For xylene (JIS
K 2435) to make the total amount 100 parts by weight,
An emulsion was obtained. For other sample numbers, kerosene was added so that the total amount became 100 parts by weight to obtain an oil solution.

[0025]

[Table 2] ────────────────────────── Specimen No. Drug measurement: mg (residual rate:%) A-1 Weather resistance Before operation Weather resistance After 7 times of weathering After 14 times of weathering ────────────────────────── P-1 8.18 6.40 (78.2) 5.30 (64.8) P-5 8.88 8.71 (98.1) 6.23 (70.2) PC-1 8.48 2.94 (34.7) 1.76 (20.8) PC-5 8.73 5.37 (61.5) 3.01 (34.5) ───────────────── ───────── A-2 Before weathering operation After 7 times of weathering operation After 14 times of weathering operation ────────────────────────── ─ P-2 8.51 6.60 (77.6) 3.80 (44.7) PC-2 8.97 2.22 (24.7) 1.53 (17.1) ───────────────────────── ─ B-1 Before weathering operation After 7 times of weathering operation After 14 times of weathering operation ─────────────────────────── P-3 10.53 9.11 (86.5 ) 6.05 (57.5) PC-3 10.74 4.58 (42.6) 3.08 (28.7) ────────────────────────── B-2 Before weathering operation After 7 times of weathering operation After 14 times of weathering operation ──────── ────────────────── P-4 10.11 8.96 (88.6) 6.30 (62.3) PC-4 10.23 4.58 (44.8) 3.39 (33.1) ──────── ──────────────────

[0026]

[Test Example 2] A cedar or beech wood piece (2 × 4 × 0.5 cm) whose mouth end surface was sealed with an epoxy resin was treated with the oil solution undiluted solution shown in Table 1 of Test Example 1 or an emulsion diluted 20 times with water to 110 ±. A test piece was obtained by applying to 10 g / m ² . This test piece was tested in accordance with the preservative efficacy test method of Japan Wood Preservation Association Standard No. 1 described below. (1) Weather resistance operation In the weather resistance 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, and the leached portion was leached. The volume ratio of water to the test body was set to 10: 1, and fresh water was replaced each time the operation was repeated. For the volatilization operation, the test specimen that had been subjected to the leaching operation was lightly drained and immediately placed in a circulating dryer at a temperature of 40 ± 2 ° C for 19 hours.
It was left to stand for a time to volatilize. After the weathering operation was completed, the test body was dried at 60 ± 2 ° C. for 48 hours in a circulating dryer and then left in a desiccator for about 30 minutes to weigh it (W ₃ ) up to 0.01 g.

(2) Antibacterial Operation An antibacterial operation was performed on the test body that had been weather-proofed. Treated specimens and non-treated specimens are placed separately on each of the three culture bottles, three on each fluorocarbon plate frame, and sterilized.
Place it on the surface of mm so that it is facing down, and place it on the fungus of the test fungus (Pleurotus ostreatus or Pleurotus cornucopiae) at a temperature of 26 ± 2 ℃ and a relative humidity of 70.
I've been there for 8 weeks. After 8 weeks, remove the specimen, carefully remove the mycelium and other adhered substances 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,
After leaving it in the desiccator for 30 minutes, its weight (W ₄ ) is 0.01
Weighed up to g. The efficacy is represented by the weight reduction rate calculated by the following formula, and the results are shown in Table 3.

[0028]

TABLE 3 ─────────────────────────────── specimen number efficacy (weight reduction rate:%) Sugi - Oousu Bu Ratake beech - Kawaratake No weatherproof operation With weatherproof operation Without weatherproof operation With weatherproof operation ─────────────────────────────── P-1 0 0 0.1 1.5 P-2 0 0 0 2.4 P-5 0 0 0 0.9 PC-1 2.0 15.9 1.9 16.9 PC-2 1.8 13.2 1.6 18.3 PC-5 0.7 10.5 2.5 13.1 Untreated 22.8 − 37.5 − ───────── ───────────────────────

[0029]

[Test Example 3] As a preservative, 3-bromo-2,3-diiodine
-2-Propenyl ethyl carbonate (A-1) is used as an insect repellent, chloropyrifos (B-1), and phoxime (B-3).
And octachlorodipropyl ether (B-4) as an acrylic polymer, PEB-4002 (manufactured by NOF CORPORATION):
C-1) and Sanimaru-CPK (Nippon Emulsifier Co., Ltd.)
Emulsifiers shown in Table 4 were prepared using a mixture of polyoxyethylene styryl phenyl ether and calcium dodecylbenzene sulfonate (D-1) manufactured by Emulsifier. A solution prepared by diluting this emulsion 20 times with water was used, and the thickness was 5 mm, width was 20 mm, and length was 40 mm.
A test piece was obtained by coating each piece of wood with a size of 110 ± 10 g / m ² . This test piece was tested in the same manner as in Test Example 2. The results are shown in Table 5.

[0030]

[Table 4] ────────────────────────────── Sample number Component (W / W%) ^*) A-1 B- 1 B-3 B-4 C-1 D-1 ────────────────────────────── Q-1 15 20 − − 10 12 Q-2 20 20 − − 10 12 Q-3 30 20 − − 10 12 Q-4 15 − 12 8 10 12 Q-5 20 − 12 8 10 12 Q-6 30 − 12 8 10 12 QC-1 15 20 − − − 12 QC-2 15 − 12 8 − 12 ────────────────────────────── *) Xylene (JIS K 2435) was added to make the total amount 100 parts by weight, and an emulsion was prepared.

[0031]

TABLE 5 ─────────────────────────────── specimen number efficacy (weight reduction rate:%) Sugi - Oousu Bu Ratake beech - Kawatake No weatherproof operation With weatherproof operation Without weatherproof operation With weatherproof operation ─────────────────────────────── Q-1 0 0.4 0 1.2 Q-2 0 0 0 0 Q-3 0 0 0 0 Q-4 0.3 1.5 0.5 2.9 Q-5 0 0.7 0 1.7 Q-6 0 0 0 0 QC-1 0.8 6.4 1.2 25.3 QC-2 2.0 8.1 2.7 30.3 Untreated 22.8 − 37.5 − ───────────────────────────────

[0032]

[Test Example 4] As a preservative, 3-bromo-2,3-diiodine
-2-Propenyl ethyl carbonate (A-1) and p-chlorophenyl-3-iodopropargyl formal (A-2) were used, and chloropyrifos (B-1) and propentanephos (B-2) were used as insect repellents. , Tralomethrin (B-5), permethrin (B-6) and octachlorodipropyl ether (B-4) were used, and PEB-4002 (NOF Corporation C-1) was used as the acrylic polymer. The oil solutions shown in Table 6 were prepared.
This undiluted oil solution was applied to each piece of wood having a thickness of 5 mm, a width of 20 mm and a length of 40 mm at 110 ± 10 g / m ² to obtain a test piece. This test piece was tested in the same manner as in Test Example 2. The results are shown in Table 7.

[0033]

[Table 6] ─────────────────────────────── Sample number Component (W / W%) ^*) A-1 A -2 B-1 B-2 B-5 B-6 B-4 C-1 ────────────────────────────── ─ R-1 0.75 − 1.0 − − − − 0.5 R-2 − 0.75 − 0.5 − − 0.5 0.5 R-3 0.75 − − − 0.02 − 1.0 0.5 R-4 − 0.75 − − − 0.2 0.75 0.5 RC-1 0.75 − 1.0 − − − − − RC-2 − 0.75 − 0.5 − − 0.5 − RC-3 0.75 − − − 0.02 − 1.0 − RC-4 − 0.75 − − − 0.2 0.75 − ──────────── ──────────────────── *) White kerosene was added to adjust the total amount to 100 parts by weight.

[0034]

Table 7 ──────────────────────────────── specimen number efficacy (weight reduction rate:%) Sugi - Oousu Bu Ratake beech -Kawaratake No weatherproof operation With weatherproof operation Without weatherproof operation With weatherproof operation ──────────────────────────────── R-1 0 0 0 0.2 R-2 0 0.9 0 0.9 R-3 0 1.4 0 1.8 R-4 0 1.9 0 2.2 RC-1 0.5 6.4 0.9 7.6 RC-2 0.8 9.0 1.5 14.7 RC-3 1.1 12.7 1.8 21.3 RC-4 1.2 15.3 1.7 19.4 Untreated 22.8 − 37.5 − ────────────────────────────────

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display area A01N 57:16) B 7106-4H

Claims (6)

[Claims] 1. A wood pest control agent comprising a pest control component and an acrylic polymer. 2. The pest control agent according to claim 1, wherein the pest controlling component is a preservative 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 acrylic polymer 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 acrylic polymer is 0.1-2 with respect to the pest controlling component. 6. The acrylic polymer has an average molecular weight (MW) of 40,0.
The control agent according to claim 1, which is a polymer of 00-50,000.