JP2006063026A - Wood-preserving composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wood-preserving composition which simultaneously has high performances against insect pests, such as Lyctus brunneus and Coptetermus formosanus Shiraki, giving damages to woods, and wood decay fungi such as brown decay fungi and white decay fungi. <P>SOLUTION: This wood-preserving composition is characterized by containing 3-(2-chloro-1,3-thiazol-5-ylmethyl)-5-methyl-1,3,5-oxadiazinon-4-ylidene(nitro)amine, and 2-(2,4-dichlorophenyl)-1-(1H-1,2,4-triazol-1-yl)-2-hexanol as active ingredients. It is preferable that the mixing ratio of the former to the latter is 1:1 to 1:10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wood preservation composition used for preventing termites, oyster beetles, molds, decaying fungi, and the like that harm wood.

Insects that damage wood include termites and larvae, and fungi that develop on wood include molds and decaying fungi, which often cause damage to wood by causing damage at the same time. In order to control these insects and fungi, organophosphorus insecticides, pyrethroid insecticides, neonicotinoid insecticides and various antifungal and antiseptic mixtures are used, but a wider spectrum -A high performance wood preservative was desired.
Among the neonicotinoid insecticides, 3- (2-chloro-1,3-thiazol-5-ylmethyl) -5-methyl-1,3,5-oxadiazinan-4-ylidene (nitro) amine (hereinafter referred to as “ (Referred to as Compound 1)) is a known compound in Patent Document 1, but has not been disclosed at all for effects on termites and oyster beetles.
In addition, N-substituted triazole compounds are widely used as agricultural fungicides, but compounds used for wood preservatives are limited to cyproconazole, tebuconazole, azaconazole and the like (Non-patent Document 1). 2- (2,4-dichlorophenyl) -1- (1H-1,2,4-triazol-1-yl) -2-hexanol (hereinafter referred to as “compound 2”) is used in the field of wood preservation Was not.

Japanese Patent No. 3487614 Japan Wood Preservation Association edited by Wood Preservative Guidelines Revised page 24 Issued on March 25, 2001

  It is an object of the present invention to provide a wood preservation composition having an excellent control effect against pests and decaying fungi such as termites and larvae that occur in wood.

As a result of extensive research on the wood preservation composition, the present inventor has found that the composition containing Compound 1 and Compound 2 as active ingredients is harmful to insects such as termites and oyster beetles, brown rot and white rot. The present inventors have found that a high control effect is simultaneously shown against decaying fungi that cause etc. Moreover, when the mixing ratio of the compound 1 and the compound 2 exists in the range of 1: 1-1: 10, it discovered that the outstanding wood protection performance was shown, and completed this invention.

  By applying the composition of the present invention to wood, a wood preservation effect was recognized.

The wood preservation composition of the present invention can be directly applied according to the purpose of use, but in general, it is a dosage form such as an oil agent, emulsion, wettable powder, aqueous solvent, flowable agent, dry flowable agent, and microcapsule agent. It is formulated and used. The solvent used in the preparation is not particularly limited as long as it dissolves the active ingredient used in the composition of the present invention. For example, water, N-methylpyrrolidone, methyl diglycol, butyl diglycol and the like can be used. . These may be used alone or in combination of two or more. The solid carrier used for preparing the solid preparation is not particularly limited as long as it absorbs or fixes the active ingredient, and examples thereof include talc, clay, diatomaceous earth and the like. Surfactants may or may not be used. When they are used, any of nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants may be used. Absent. Examples of nonionic surfactants include polyoxyethylene alkyl phenyl ether, polyoxyethylene styryl phenyl ether, polyoxyethylene alkyl ether, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, and the like. Examples thereof include alkylbenzene sulfate, polyoxyethylene alkyl ether sulfate, polyoxyethylene alkylphenyl ether sulfate, and dialkyl sulfosuccinate. Examples of cationic surfactants include aliphatic amine salts and quaternary ammonium salts thereof. Examples of amphoteric surfactants include, but are not limited to, betaine surfactants and aminocarboxylates. These nonionic surfactants, anionic surfactants, cationic surfactants and amphoteric surfactants may be used alone or in combination of two or more.
Moreover, it is also possible to mix | blend and use a caking additive, a thickener, a fungicide, a disinfectant, another insecticide, a rust inhibitor, a deterioration inhibitor, etc. as needed. The mixing ratio of compound 1 and compound 2 in the composition of the present invention is preferably 1: 1 to 1; 10, and in the case of the above mixing ratio, an extremely excellent wood preservation effect is obtained.

A solution obtained by diluting an Actara granular water solvent (manufactured by Syngenta Corporation, containing 10% of Compound 1) 50 times with water is referred to as Liquid 1. A solution obtained by diluting an anvil flowable agent (manufactured by Syngenta Co., Ltd., containing 2% of compound 2) twice with water is referred to as solution 2-1 and 3.3 times. A mixture of liquid 1 and liquid 2-1 in 1: 1 is referred to as Example 1, and a mixture of liquid 1 and liquid 2-2 in 1: 1 is referred to as Example 2.
(Comparative example)

  The above liquid 1 is Comparative Example 1 and Liquid 2-1 is Comparative Example 2, and commercially available ant / preservative Hachikusan 20WE (manufactured by Bayer Crop Science Co., Ltd., a preparation containing imidacloprid and cyproconazole as active ingredients) A sample diluted with water 20 times (actual concentration used) was used as Comparative Example 3.

Test Example 1 Effect on termites Examples 1, 2, and Comparative Examples 1, 2, and 3 were applied with a brush at a rate of 110 g / m 2 on the surface of a cedar sapwood (2 cm × 1 cm × 1 cm). After air-drying, place the test piece in a plastic cup filled with moistened sand, release 50 termite ants and 5 soldier ants and place them in a constant temperature room at 26 ° C. Was observed. The results are shown in Table 1.

Test Example 2 Antiseptic effect After a PDA medium was solidified in a petri dish, a wood-rotting fungus Trametes versicolor was collected and pre-cultured at 26 ° C. and 90% relative humidity for 1 week. A test piece was prepared by immersing Scots pine sapwood (2 cm × 5 cm × 0.3 cm) in the solutions of the compositions of Examples and Comparative Examples diluted to a specified concentration with water for 30 seconds and then air-dried. . After pre-culture, the test piece was placed on the medium on which the bacteria had grown and cultured at 26 ° C. and 90% relative humidity for 28 days.
The results are shown in Table 2. However, the indication of the degree of decaying fungus growth was based on the following criteria.

-: No growth of rotting fungus is observed on the test piece.
+: Growth of decaying fungus is observed on the side of the test piece.
++: The area of the growth part of the decaying fungi on the test piece is less than 1/3 of the total area.
+++: The area of the growth part of the decaying fungus on the test piece is 1/3 or more of the total area.

注１：イミダクロプリド ０．１％
注２：シプロコナゾール ０．１％
表１の結果から明らかなように、本発明木材保存組成物は防蟻・防腐効果が高く、優れた木材保護性能が認められた。

Note 1: Imidacloprid 0.1%
Note 2: Cyproconazole 0.1%
As is clear from the results in Table 1, the wood preservation composition of the present invention has a high ant / antiseptic effect, and excellent wood protection performance was recognized.

The wood preservation composition of the present invention exhibits a high control effect against pests and rot fungi that harm wood, and can be used in wood, plywood, laminated wood industry and the like.

Claims (2)

  3- (2-Chloro-1,3-thiazol-5-ylmethyl) -5-methyl-1,3,5-oxadiazinan-4-ylidene (nitro) amine and 2- (2,4-dichlorophenyl) -1- A wood preservation composition comprising (1H-1,2,4-triazol-1-yl) -2-hexanol. 3- (2-Chloro-1,3-thiazol-5-ylmethyl) -5-methyl-1,3,5-oxadiazinan-4-ylidene (nitro) amine and 2- (2,4-dichlorophenyl) -1- The wood preservation composition according to claim 1, wherein a mixing ratio of (1H-1,2,4-triazol-1-yl) -2-hexanol is 1: 1 to 1:10.