JPH01224302A - Controller against indoor acarids - Google Patents

Abstract

PURPOSE:To obtain a controller against indoor acarids, showing excellently controlling effects on various acarids such as American house dust mite or Throphagus dimidiatus living in dust inside of a house, comprising a specific compound as an active ingredient. CONSTITUTION:A controller against indoor acarids comprising a compound shown by the formula (R is CCl3, lower alkoxycarbonyl, CH3 or cyclopropyl) such as kelthane (R=CCl3) or chlorobenzilate (R=COC2H5) well-known as a controller against agricultural insect pests such as spider mites as an active ingredient. The active ingredient is blended with a carrier and an auxiliary, prepared into emulsion, wettable powder, dust, granule, oil, aerosol, etc. and used for treating TATAMI (straw matting), carpet, mattress, sofa, bedding such as FUTON (thick bedquilt or pillow, closest, storehouse, etc. by a method such as scattering, spraying, coating, misting, vaporization under heating, setting, etc. The amount of the active ingredient in preparation is 0.001-95wt.% and application amount is >=10mg/m<2> active component.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a compound of the general formula CI) [wherein R represents a trichloromethyl group, a lower alkoxycarbonyl group, a methyl group or a cyclopropyl group].

] This relates to an indoor dust mite control agent containing the compound shown below as an active ingredient.

<Prior art> In recent years, due to changes in lifestyles and housing structures, mites that live in the indoor dust of ordinary houses have sometimes appeared in large numbers, causing not only discomfort to residents but also childhood asthma and other problems. It is becoming a social problem as it causes tick allergies and tick bites.

Conventionally, as a control agent for such mites, for example, organic phosphorus compounds such as fenitrothion, fenthion, dichlorvos, and diazinon, carbamate compounds such as proboxal and carbaryl, resmethrin,
Pyrethroid compounds such as phenothrin and permethrin are known, and they can be used as aerosols on tatami mats, carpets, etc.
It is known to be used by direct spraying in the form of emulsions, oils, etc., by impregnating insect repellent paper, carpets, etc., and by smoking.

<Problems to be Solved by the Invention> However, many organic phosphorus compounds are generally highly toxic, and many have a unique bad odor. Furthermore, although it is highly effective against mites, it cannot necessarily be said to be sufficiently effective against mites.

In addition, many carbamate compounds are generally highly toxic (and their efficacy against insects that infect humans, such as spider mites, is not necessarily sufficient).

Generally speaking, although pyrethroid compounds generally have low toxicity, they are not necessarily sufficiently effective against common insects such as the mites.

Means for Solving the Problems> Therefore, the present inventors have diligently studied to develop a mite control agent that is effective against various types of mites and has fewer of the above-mentioned drawbacks. The present invention has been made based on the discovery that the compound represented by I) is extremely effective in controlling indoor dust mites.

The compound represented by the general formula CI) is known as a control agent for agricultural pests such as spider mites, and includes, for example, the compounds shown in Table 1 Gζ below.

Table 1 In the present invention, the indoor dust mites targeted are:
For example, spider mites such as the spider mites that infect the skin and the yellow spider mites, the mites such as the woolly spider mites and the wheat mites, the mites such as the dust mites and the dust mites, the stag mites such as the stag beetle mites and the foot mites, the two types of common spider mites, and the common mites. Examples include.

When the compound represented by the general formula (I) is used as an active ingredient of an indoor dust mite control agent, it may be used as it is without adding any other ingredients, but it is usually used in the form of a solid carrier, liquid carrier, It is mixed with gaseous carriers, surfactants, other formulation auxiliaries, baits, etc., and used in formulations such as emulsions, wettable powders, powders, granules, oils, aerosols, fogging agents such as fogging, and poison baits.

These preparations contain o, oot to 95% by weight of the compound represented by the general formula CI) as an active ingredient.

Examples of solid carriers used in formulations include kaolin clay, attapulgite clay, bentonite, acid clay, pyrophyllite, talc, diatomaceous earth, calcite, corn cob powder, electric shell powder, urea, ammonium sulfate, synthetic hydrous silicon oxide, etc. Examples of liquid carriers include aliphatic hydrocarbons such as kerosene and kerosene, benzene, toluene, xylene,
Aromatic hydrocarbons such as methylnaphthalene, halogenated hydrocarbons such as dichloroethane, trichloroethylene, and carbon tetrachloride, alcohols such as methanol, ethanol, isopropanol, ethylene glycol, and cellosolve,
Ketones such as acetone, methyl ethyl ketone, cyclohexanone, and isophorone; ethers such as diethyl ether, dioxane, and tetrahydrofuran; esters such as ethyl acetate; nidolyls such as acetonitrile and imbutyronitrile; acid amides such as dimethylformamide and dimethylacetamide. Examples of gaseous carriers include chlorofluorocarbon gas and LPG.

Examples include dimethyl ether. Examples of surfactants include alkyl sulfate salts, alkyl (aryl) sulfonates, dialkyl sulfosuccinates, polyoxyethylene alkylaryl ether phosphate salts, naphthalene used for emulsification, dispersion, wet layer, etc. Anionic surfactants such as sulfonic acid formalin condensates,
Examples include nonionic surfactants such as polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene block copolymer, sorbitan fatty acid ester, and polyoxyethylene sorbitan fatty acid ester. Other formulation auxiliaries include, for example, lignin sulfonates, algylates, polyvinyl alcohol, gum arabic, molasses, casein, gelatin, CMC (carboxymethylcellulose), pine oil, as fixing agents and dispersants.
Examples of stabilizers include agar, and examples of stabilizers include PAP (
acidic isopropyl phosphate), alkyl phosphates such as TCP (tricresyl phosphate), vegetable oils, epoxy Kamiike, the above-mentioned surfactants, antioxidants such as BHT and BHA, fatty acid salts such as sodium oleate and calcium stearate, Examples include fatty acid esters such as methyl oleate and methyl stearate.

The mite control agent of this application is suitable for use on tatami mats, carpets, pine trees,
Rough 1-1 It is used by treating bedding such as futons and pillows, closets, warehouses, etc. by methods such as scattering, spraying, coating, fogging, heating evaporation, and installation.

Furthermore, the mite control agent of the present application may be used in combination with various insecticides, acaricides, synergists, pest repellents, rat repellents, fungicides, fungicides, fragrances, colorants, etc. can. Examples of typical drugs that can be used in combination are shown in Table 2.

In addition, when using a mite control agent containing the compound represented by formula (I) as an active ingredient, the application rate is usually 1019 or more of the active ingredient per area to be treated IF7/, or 1 per 11 rI of applied space. It is desirable to have at least 100 yen.

Table 2 (Examples) The present invention will be explained in more detail below using formulation examples and test examples, but the present invention is not limited to these examples.

The test compounds are represented by the compound numbers in Table 1 and the compound symbols in Table 2. Moreover, parts mean parts by weight.

Formulation Example 1 An oil solution is obtained by mixing 0.2 parts of compound (1) or (2), 2 parts of xylene, and 97.8 parts of white kerosene.

Formulation Example 2 10 parts each of compounds (1) to (5), 14 parts of polyoxyethylene styrylphenyl ether, 6 parts of calcium dodecylbenzenesulfonate and 70 parts of xylene (
Mix to obtain each emulsion.

Formulation Example 8 Compound (1) or (2) 20 parts, compound (goods) 10
1 part, 8 parts of calcium ligninsulfonate, 2 parts of sodium lauryl sulfate, and 65 parts of synthetic hydrous silicon oxide are thoroughly ground and mixed to obtain a wettable powder.

Formulation Example 4 1 part of Compound (1) or (2), 2 parts of Compound 0, 87 parts of kaolin clay, and 10 parts of talc are thoroughly ground and mixed to obtain a powder.

Formulation Example 6 5 parts of compound (1) or (2), 1 part of synthetic hydrous silicon oxide, 2 parts of calcium ligninsulfonate, 8 parts of bentonite
0 parts and 62 parts of kaolin clay are thoroughly ground and mixed, water is added and the mixture is thoroughly kneaded, and then granulated and dried to obtain granules.

Formulation Example 6 Compound (1) or (2) 0.05 part, Compound 00.
2 parts of compound (F), 0.05 parts of xylene, and 82.7 parts of deodorized kerosene are mixed and dissolved, filled into an aerosol container, and a valve part is attached. ) to obtain an aerosol.

Test example! 0.2 cc of an acetone solution of a test compound at a predetermined concentration was uniformly applied to the inner wall of a glass screw tube having a volume of N 20 cc and air-dried. 20 adult mites each of the test mites (Konahi-infecting mites or woolly mites) were placed in the container and the lid was placed on the container. After 24 hours, the ticks were determined to be alive or dead, and the mortality rate was calculated (
8 repetitions).

Table 8 shows the mortality rate of the four-spotted mite, and Table 4 shows the mortality rate of the woolly mite.

Table 8 Test results against Kanahi mite Eζ Table 4 Test results against Kanahi mite E After installing the part, 150g of propellant (liquefied petroleum gas) is passed through the valve part. was filled under pressure to obtain an aerosol.

R paper (80em x 80mm) (Spray the above aerosol evenly for 8 seconds, air dry for 24 hours, then apply 5α
Cut it into a sheet of size α. After folding the long side of the sheet in half and sealing both ends with metal clips, 20 adult mites each of the test mites (Konahi, Uhidani, or Woolly mites) are released from the opening, and the opening is further clipped. It was sealed. After 24 hours, the production of mites was determined and the mortality rate was calculated.

Table 5 shows the mortality rate of Dermatophagoides mites, and Table 6 shows the mortality rate of Dermatophagus mites.

Table 5 Test results for Konahi Sotsu Dermatode mites ζ Table 6 <Effects of the invention> The mite control agent of the present invention exhibits excellent control effects in controlling various types of mites living in indoor dust. It is something.

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Claims (1)

[Claims] (1) General formula▲ Numerical formula, chemical formula, table, etc.▼ [In the formula, R represents a trichloromethyl group, a lower alkoxycarbonyl group, a methyl group, or a cyclopropyl group. ] An indoor dust mite control agent characterized by containing a compound represented by the following as an active ingredient.