JPS6049162B2 - Composition for eradicating wood pests - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composition for eradicating wood pests containing an isocyanuric acid trialkyl ester and a pyrethroid insecticide as active ingredients.

The isocyanuric acid trialkyl ester used in the present invention is a compound known in the literature, for example, US Pat.
It is described in 7597 Gin Publication and 3684807 Publication.

According to the document, the content is a method for producing isocyanuric acid derivatives, which includes isocyanuric acid trialkyl esters, but does not describe specific compounds. In addition, the description states that it can be used as a pharmaceutical, a raw material for the synthesis thereof, an insecticide, a polymer or copolymer, or a raw material for the synthesis thereof. However, the same publication does not disclose any specific use of the isocyanuric acid trialkyl ester according to the present invention, nor does it disclose anything about how to use it as an insecticide. In addition, the isocyanuric acid trialkyl ester used in the present invention is
No. 566, No. 36-3985, No. 36-43
Publication No. 76, Publication No. 40-2556, Publication No. 40-663
These are known compounds described in Publication No. 5, Publication No. 41-106, Publication No. 42-9345, and Publication No. 42-12913.

However, the content includes the manufacturing method, and the usefulness is that it can be used as an intermediate for organic synthesis, a raw material for polymer compounds, an industrial chemical, a heat medium, a lubricant, a plasticizer, etc. There is no mention of its use as a drug. The inventors have discovered that wood and cellulosic materials, etc.
As a result of our intensive search for an insecticidal agent against termites, bark beetles, etc. that devour the insects, we unexpectedly discovered that the combination of isocyanuric acid trialkyl ester and pyrethroid insecticide had excellent insecticidal activity. Heading: The present invention has been completed.

That is, the present invention provides a composition for eradicating wood pests, which is characterized by containing an isocyanuric acid trialkyl ester and a pyrethroid insecticide as active ingredients.

Examples of the isocyanuric acid trialkyl ester used in the present invention include isocyanuric acid triethyl ester, isocyanuric acid tri-n-propyl ester, isocyanuric acid tri-n-butyl ester, and the like.

The characteristics of these compounds are that they exhibit strong insecticidal activity at relatively high dosages, and at resistive dosages they first act to prevent damage caused by pests, eventually leading to their death. Furthermore, the composition maintains its activity for a long time and exhibits strong residual efficacy, and has extremely excellent properties as a pest control agent for wood pests. On the other hand, the pyrethroid insecticide used in the present invention is, for example, (+)-3-allyl-2-methyl-4-oxo-2-cyclopentenyl-(+)-trans-chrysanthemate (hereinafter referred to as "d- transallethrin), (±)-3-aryl-2-methyl-4-oxo-2-cyclopentele-(±)-cis/
Trans-chrysanthemate (hereinafter referred to as "allethrin"), 5-benzy-3-furylmethyl (±)
-cis/trans-chrysanthemate (hereinafter referred to as generic name "resmethrin"), 5-benzy-3-furylmethyl-(+)-cis/trans-chrysanthemate (hereinafter referred to as generic name [d-resmethrin]), N-( 3, 4,
5,6-tetrahydrophthalimido)methyl-(±)-
cis/trans-chrysanthemate (hereinafter referred to as "phthalthrin") and 3-phenoxybenzyl.
(±)-cis/trans-chrysanthemate (hereinafter referred to as the common name "d-phenothrin").

A feature of the activity of this pyrethroid insecticide against wood pests is that it exhibits rapid efficacy 3 even at low dosages.

As described above, the present invention utilizes the characteristics of isocyanuric acid trialkyl ester and pyrethroid insecticide, and by mixing these two types of chemicals, it is extremely effective in combining residual effect and immediate effect with a small amount. There are compositions for eradicating wood pests.

Furthermore, the composition of the present invention is characterized by not only the additive activities of the isocyanuric acid trialkyl ester and the pyrethroid insecticide, but also the fact that they act synergistically against the target insect pests by having different sites of action and different mechanisms of action. That is what we are doing.
Since both the isocyanuric acid trialkyl ester and the pyrethroid insecticide in the composition of the present invention are easily soluble in various solvents, each component can be appropriately mixed within a wide range depending on the purpose of use, usage situation, etc.

In order to most effectively exhibit the effects of the composition of the present invention,
The mixing ratio of the pyrethroid insecticide to the isocyanuric acid trialkyl ester is most preferably 2 to 40%7 (wt%). When carrying out the present invention, it is possible to use the composition as it is because the isocyanuric acid trialkyl ester, which is one of the components of the composition of the present invention, is a stable compound and is liquid at room temperature. Ru.

However, in order to most effectively achieve the purpose of the present invention, it is preferable to use it as an oil or emulsion. It can also be used as a wetting agent, suspending agent, powder, aerosol, smoke agent, or fumigant depending on the purpose or situation of use. In formulation, the carrier may be solid, liquid or gas, or a combination thereof.

Examples of the carrier here include talc, clay, kaolin, diatomaceous earth, white carbon, calcium carbonate,
Potassium chlorate, saltpeter, wood flour, nitrocellulose, starch, gum arabic powder, water, alcohol, kerosene, naphtha, xylene, methylnaphthalene, benzene, acetone,
Air, nitrogen, carbon dioxide, Freon, vinyl chloride, propane, butane, etc. are used. Further, auxiliary agents such as spreading agents, emulsifiers, dispersants, wetting agents, etc. may be added to the composition of the present invention.

Furthermore, depending on the purpose of use, the composition of the present invention can be used in combination with other insecticides, fungicides, and preservatives. In actual use, it goes without saying that the content of the composition of the present invention can be varied over a wide range of concentrations depending on the use situation, purpose of use, or form of preparation; however, the generally preferred concentration is 0.1 to 10. A range of % is appropriate. Further, the composition may be treated by any appropriate method such as inhalation, spraying, coating, or immersion treatment on wood materials, or soil treatment. Next, an experimental example will be given and explained.

Experimental Example 1 Efficacy test against house termites A circular door paper with a diameter of 9C71 was treated with 1 ml of an acetone solution containing the active ingredient at a predetermined concentration of each drug and air-dried.The paper was placed on the bottom of a Petri dish with a diameter of 9 cm and watered with 1TrL1 of water. Included.

Next, 20 domestic termite worker ants taken out from the pine wood were placed in the pot, covered with a glass lid, and kept at a constant temperature of 25°C and 2°C, and the subsequent progress was observed. The results are shown in Table 1. Experimental Example 2 Efficacy test on the larvae of the oyster beetle A predetermined amount of each drug was dissolved in 0.25Pe acetone to a specified concentration, and the mixture was locally applied to the abdomen of the larvae of the oyster beetle.
The number of dead insects was observed over time.

In addition, 20 animals were used in each group, and the mortality rate was examined. The results are shown in Table 2. Next, an explanation will be given with reference to examples.

Example 1 Isocyanuric acid tri-n-propyl ester 4 parts by weight d-transarethrin 0.4 Kawakasol (manufactured by Kawasaki Kasei Co., Ltd.) 95.6 These were thoroughly mixed and used as an oil agent.

Example 2 Isocyanuric acid tri-n-butyl ester 4 parts Allethrin
10 Dodecylbenzenesulfonic acid calcium salt 5 Polyoxyethylene alkyl allyl ether 5 Xylene 40 These are thoroughly mixed and used as an emulsion.

Example 3 Isocyanuric acid triethyl ester 4 parts by weight d-transarethrin 0.5 White carbon 3 Clay 92.5 These are thoroughly mixed and pulverized to be used as a powder.

Example 4 Isocyanuric acid tri-n-propyl ester 2 parts by weight d-transarethrin 0.1 Diethyl glycol monobutyl ether 10 Zinc naphthenate 1 Fume kerosene 86.9 These are thoroughly mixed and used as an oil agent.

Claims (1)

[Claims] 1. A composition for eradicating wood pests, which contains an isocyanuric acid trialkyl ester and a pyrethroid insecticide as active ingredients.