JP3085681B2 - Acaricide - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a novel agent for controlling mites and a method for controlling mites.

[Conventional technology]

Although ticks inhabit in the indoor dust of ordinary households, ticks have been frequently observed in recent years due to changes in houses and lifestyles. Conventionally, mite control agents for such house dust mites include, for example, organophosphorus compounds such as fenitrothion, fenthion, DDVP, and diazinon, proboxers, carbamate compounds such as NAC, and pyrethroids such as resmethrin forte. Compounds are known.

[Problems to be solved by the invention]

The need to recognize and control acarid mites and house dust mites as sanitary pests has been relatively recent. At present, many kinds of drugs are commercially available for controlling pests, and it is very difficult to control these ticks while it is possible to select and use useful drugs from them. Methods of solving problems with pesticides have indeed often been very successful in the past. However, they have fallen in favor of the versatility of insecticides, and no chemical control measures have been implemented.
Although mites are said to be less susceptible to insecticides than ordinary insects, no effective new drugs have been developed yet that satisfy various control conditions for acarid mites and dust mites. There are very few agents that can effectively use acaricides developed as agricultural chemicals for spider mites parasitic on agricultural crops as mite control agents as sanitary pests.

That is, these known mite control agents are used by being held on tatami or carpet insect-proof paper, or sprayed or sprayed as they are, but have the following disadvantages. That is, organophosphorus mite control agents are generally highly toxic, have a bad smell, and have the disadvantage of being less effective against Dermatophagoides, and carbamate mite control agents are more toxic and more effective against Dermatophagoides. Is low, pyrethroid mite control agent is expensive,
It has a drawback that its effect on the mites is low.

These drugs were originally developed as agricultural pesticides as described above, and in the field, they have been effectively used without any problem.However, when they are used as mite control agents as sanitary pests for general households, It's not always satisfactory.

[Means for solving the problem]

The present inventor has conducted various studies to provide an inexpensive mite control agent having low toxicity and a wide range of tick control areas. As a result, 6-methylquinoxaline-2,3-dithiocarbonate (generic name: quinomethionate) was obtained. It has been found that the above requirements are satisfied.

That is, the present invention provides 6-methylquinoxaline-2,3-
The present invention relates to a mite control agent comprising dithiocarbonate (generic name: quinomethionate) as an active ingredient, and a method for controlling mites using the mite control agent.

The tick controlling agent of the present invention shows an extremely excellent tick controlling effect.

Specific examples of the mites include Dermatophagoides mite (Dermatophagoides mite), Dermatophagoides farinae (Dermatophagoides mite), Dermatophagoides farinae (Dermatophagoides mite), Dermatophagoides farinae such as Dermatophagoides farinae and Dermatophagoides farinae, Dermatophagoides and Dermatophagoides, and the like. Examples of the mites include a house dust mite such as a house dust mite and a house mite, and animal parasitic mites such as a house mite and a bird mite. In particular, acarid mites and dust mites can be mentioned.

The mite control agent of the present invention can use the above-mentioned active ingredient as it is, but usually holds the active ingredient in a liquid carrier and a solid carrier, and if necessary, a film forming agent, an emulsifier,
Add oils, emulsions, wettable powders, sprays, aerosols, smokers, coatings, powders, granules by adding dispersants, spreading agents, wetting agents, stabilizers, propellants, volatilization modifiers, etc. Etc. can be used. Examples of the liquid carrier include water and alcohols such as methyl alcohol, ethyl alcohol and isopropyl alcohol, ketones such as acetone, methyl ethyl ketone and cyclohexanone, ethers such as tetrahydrofuran, dioxane and dimethyl ether, hexane, kerosene, normal paraffin and solvent. Examples thereof include aliphatic hydrocarbons such as naphtha, aromatic hydrocarbons such as benzene and toluene, halogenated hydrocarbons such as dichloromethane and dichloroethane, and esters such as ethyl acetate and butyl acetate. As a solid carrier,
For example, silicic acid, kaolin, activated carbon, bentonite, diatomaceous earth, talc, clay, calcium carbonate, powdered minerals such as ceramic powder, wood flour, soy flour, flour, plant powders such as starch, inclusion compounds such as cyclodextrin And the like.

In addition, as a coating film forming agent, a cellulose derivative, a vinyl resin, an alkyd resin, a urea resin, an epoxy resin, a polyester resin, a urethane resin, a silicon resin, an acrylic resin, a chlorinated rubber, a polyvinyl alcohol, etc. As emulsifiers, dispersants, and spreading agents, soaps, polyoxyethylene fatty alcohol ethers, polyoxyethylene alkyl allyl ethers, polyoxyethylene fatty acid esters, fatty acid glycerides, sorbitan fatty acid esters, sulfuric acid esters of higher alcohols, Surfactants such as alkyl allyl sulfonates and propellants include liquefied petroleum gas, dimethyl ether, fluorocarbon and the like. Further, as a volatilization modifier, sublimable carriers such as tricyclodecane, cyclododecane, 2,4,6-triisopropyl-1,3,5-trioxane, trimethylene norbornene and sublimable carriers such as paradichlorobenzene, naphthalene and camphor. By using an insect repellent, the active ingredient can be made into a sublimable individual preparation.

The mite control agent of the present invention may further contain various insect repellents, synergists, insect repellents, rodent repellents, antioxidants, decomposition inhibitors, fungicides, fungicides, fragrances, coloring agents, and the like. Can also.

The amount of the active ingredient in the mite control agent of the present invention may be appropriately determined according to the dosage form, application method, application place, and the like. 0.
When used in the form of an oil agent or an aerosol, the active ingredient is preferably 0.1 to 10% by weight, and the amount of the active ingredient to be applied is about 20 m per 1 m ^{2 of} area to be treated.
g or more, it is desirable to present the active ingredient from about 2mg or more per application space 1 m ^3.

The present invention also provides a tick control material comprising the above-mentioned tick control agent held on a substrate. The mite control material is used as a film, sheet, building, construction material, etc. having the tick control material by utilizing the properties of the base material.

Means for holding the mite control agent of the present invention on these substrates is not particularly limited, and may be performed by, for example, application, impregnation, dropping, kneading, or the like. The retention amount is not particularly limited and can be appropriately determined. However, in the case where the substrate is impregnated, the amount is preferably up to the saturated impregnation amount.

As a preferred embodiment of the tick control material of the present invention,
A tick control carpet can be exemplified. For the mite control carpet, for example, a normal carpet made of a pile, a first base cloth, a packing agent and a second base cloth is prepared, and then the mite control agent of the present invention having a liquid form is sprayed on the front surface and / or the back surface thereof. Applying or kneading the mite control agent of the present invention into at least one of a pile, a first base cloth and a second base cloth before preparing the carpet, and using these to prepare a carpet or packing The mite control agent of the present invention is mixed with the agent, and the mixture is used to prepare a carpet according to a precoat method or a jute pack method. In the above, the precoat method refers to a method in which a packing agent is applied in advance to fix the pile on the first base fabric, and then the packing agent is further applied to the processing portion to adhere the second base fabric. . The jute pack method is a method in which a packing agent is applied to a first base cloth in which a pile is woven, and a second base cloth is adhered. Mite control carpet that is created as described above is usually and it is preferably to about 0.5~200g hold the active ingredient per carpet area 1 m ^2.

[Functions and Effects of the Invention]

As described above, the tick controlling agent of the present invention can be placed on a tatami, carpet, floor, corridor, mattress, sofa, bedding such as futon or pillow, closet, storage tool, warehouse, etc., sprayed, sprayed, and applied. An excellent mite-controlling effect can be obtained by directly treating with a method such as fogging, heat evaporation and the like, or by installing a tick-controlling material in which the active ingredient is held on a base material at the above-mentioned location.

〔Example〕

Hereinafter, the present invention will be described in more detail by way of examples. However, it should not be limited to this.

Example 1 Efficacy against Dermatophagoides pteronyssinus Test Method 5.0 g of a feed for breeding mites was placed in a petri dish having a diameter of 9 cm and a height of 6 cm.
l. Drop and soak and mix well. After removing the solvent, add 5.0 g of breeding mite feed (including ticks) and mix well.
Then, shake once a day, and 7 days later, the number of live mites in each petri dish is counted under a stereoscopic microscope. The mite lethality (%) was determined from the number of live mites in the untreated group and the number of live mites in the treated group by the following formula. The results are shown in Table 1.

Example 2 Test Method for Efficacy Against Acarine Mites The mite mortality was determined in the same manner as in Example 1, and the results are shown in Table 2.

Other effects were also obtained against Dermatophagoides farinae, Pteronyssinus mites, and sugar mite.

Example 3 To 15 g of the active compound used in the present invention, a trace amount of fragrance, 20 ml of ethyl cellosolve, and odorless kerosene were further added to make a total of 150 ml, and a mixture of liquefied petroleum gas and dimer ether (1: 1 volume ratio) And 150 ml of the above were filled into a pressure-resistant can for aerosol (contents: 400 ml), attached to an injection device, and sealed to obtain an aerosol.

Example 4 The non-woven fabric (made of polyethylene-pulp, 300 μm in thickness, 1 m ² in area) was impregnated with 1 g of the active compound used in the present invention and then dried to obtain a mite controlling agent in a sheet form.

Example 5 The active compound of the present invention was mixed with the same weight of silicon oxide, mixed well, and then pulverized to obtain a powdered mite control agent.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-25903 (JP, A) JP-B-39-238 (JP, B1) Manabu Sasawa, edited by "Acari", first edition, The University of Tokyo Publication, February 25, 1965, pp. 432-434, Akio Shimomatsu, "House Dust Mites and Control Agents", House Pests, Japanese Society of House Pests, October 10, 1988, No. 35, No. 36 (volume), pp. 11-25, Shigeo Kitaoka et al., “Testing the Efficacy of Pesticides Against Tickles and Haemaphysalis longicornis,” Insect Control Science, Insect Control Research Institute, 1971, Vol. 36, No. 1, Pages 27 to 34 (58) Fields investigated (Int. Cl. ⁷ , DB name) A01N 43/90 103 CA (STN) REGISTRY (STN)

Claims (1)

(57) [Claims] An agent for controlling household mite pest mites and house dust mites, which comprises 6-methylquinoxaline-2,3-dithiocarbonate as an active ingredient.