JP2002234804A - Method for controlling flying insect in open air - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for controlling a flying insect in the open air to minimize the damage from the flying insect for a prescribed time for the purpose of keeping the environment of the action of a person hygienic and comfortable when the person carrying out the outdoor action. SOLUTION: This method for controlling the flying insect in the open air is characterized in that a chemical-carrying body obtained by allowing a carrier to carry a chemical composition containing a pyrethroid-based insecticide which has >=0.1 mPa (20 deg.C) vapor pressure and activities for killing the insect by the vapor is sprinkled on a solid surface of the environment in which the insect flies.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a method for controlling outdoor flying insects.

[0002]

2. Description of the Related Art With the recent trend of outdoor life,
The number of people who spend leisure time outdoors has been increasing year by year, and especially in the spring and autumn, outdoor leisure activities such as camping and barbecue become active. In such outdoor entertainment, mosquitoes and other flying hygiene pests and unpleasant pests are usually damaged or interfere with recreation. Or mental illness was inevitable.

Various methods of controlling outdoor flying insects to solve such a problem have been proposed so far.
For example, as a method of controlling or controlling mosquitoes outdoors, use of mosquito coils, liquid agents, matting agents, fan types, aerosols, and other insecticide products for vehicles or portable or portable insecticide products, to the skin Use of a repellent to be applied is exemplified.

[0004] However, the heating and evaporating agents such as the liquid agent and the matting agent require an AC power source, and cannot be used under the condition that the power source cannot be secured. A heating mechanism using a chemical reaction or a rechargeable battery has been proposed instead of an AC power supply, but is not practical because of its low efficiency. In addition, in the fan type, operation with dry batteries is possible, but not only is it troublesome to dispose of the dry batteries after use, it also increases the weight,
Poor economic efficiency. Mosquito coils are simple and suitable for outdoor use, but have problems such as aversion to smoke and smell, the possibility of causing a fire, and the need to use a large amount. Furthermore, since all of the above-mentioned agents are more or less "pin-point installation", there is a decisive problem that the effect greatly changes depending on the wind direction.

[0005] In addition, simultaneous control using aerosols, fumigants, etc. has immediate effects and is effective at the very beginning.
Sustainability cannot be expected. In the case of repellent applied to the skin,
There is a problem that it does not suit the constitution, it is difficult to completely obtain the effect due to unevenness of coating, and there is a problem of discomfort in relation to sweating.

[0006] In view of the above, no proposal has been made for a control measure for general outdoor flying insects which cause harm or discomfort in hygiene.

[0007]

SUMMARY OF THE INVENTION The present invention aims at minimizing the damage from flying insects for a certain period of time for the purpose of keeping the behavioral environment hygienic and comfortable when a person performs outdoor activities. An object of the present invention is to provide a method for controlling outdoor flying insects.

[0008]

According to the present invention, the vapor pressure is set to 0.
Spraying a drug carrier having a carrier containing a pyrethroid-based insecticide having a pesticidal effect of at least 1 mPa (20 ° C.) and having a vapor-killing effect on a solid surface of an environment in which insects fly. A method for controlling outdoor flying insects,
About.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The pyrethroid insecticide used in the present invention is not limited as long as it has a vapor pressure of 0.1 mPa (20 ° C.) or higher and evaporates at room temperature, and the vapor has an insecticidal effect. Not limited.

Representative examples of pyrethroid insecticides include:
Allethrin [dl-3-allyl-2-methyl-4-oxo-2-cyclopentenyl dl-cis / trans-chrysanthemate], dl.d-T80-aresulin [d
l-3-allyl-2-methyl-4-oxo-2-cyclopentenyl d-cis / trans-chrysanthemate], dl.dT-aresulin [dl-3-allyl-
2-methyl-4-oxo-2-cyclopentenyl d-
Trans-chrysanthemate], d.dT-aresulin [d-3-allyl-2-methyl-4-oxo-2-cyclopentenyl d-trans-chrysanthemate],
dd-T80-Praletrin [(+)-2-methyl-
4-oxo-3- (2-propynyl) -2-cyclopentenyl (+)-cis / trans-chrysanthemate], resmethrin [5-benzyl-3-furylmethyl dl-cis / trans-chrysanthemate], dl
d-T80-resmethrin [5-benzyl-3-furylmethyl d-cis / trans-chrysanthemate], empentrin [1-ethynyl-2-methyl-2-pentenyl dl-cis / trans-3- (2,2 -Dimethylvinyl) -2,2-dimethyl-1-cyclopropanecarboxylate], terarethrine [dl-3-allyl-2-
Methyl-4-oxo-2-cyclopentenyl-dl-cis / trans-2,2,3,3-tetramethyl-cyclopropanecarboxylate], transfluthrin [d
Trans-2,3,5,6-tetrafluorobenzyl-3- (2,2-dichlorovinyl) -2,2-dimethyl-1-cyclopropanecarboxylate], ethofenprox [2- (4-ethoxy) Phenyl) -2-methylpropyl-3-phenoxybenzyl ether], tefluthrin [2,3,5,6-tetrafluoro-4-methylbenzyl-3- (2-chloro-3,3,3-trifluoro-1) -Propenyl) -2,2-dimethyl-1-cyclopropanecarboxylate], fenpropatrin [α-cyano-3-phenoxybenzyl-cis / trans-2,2,3,3-tetramethylcyclopropanecarboxylate] , Fenfluthrin [2,3,4,5
6-pentafluorobenzyl-dl-cis / trans-
3- (2,2-dichlorovinyl) -2,2'-dimethyl-1-cyclopropanecarboxylate], flamethrin [5-propargyl-2-furylmethyl d-cis / trans-chrysanthemate], 2,3 , 5,6-tetrafluoro-4-methoxymethylbenzyl 3- (1-propenyl) -2,2-dimethylcyclopropanecarboxylate, 1-ethynyl-2-methyl-2-pentenyl 3
-(2-chloro-2-fluorovinyl) -2,2-dimethylcyclopropanecarboxylate, 2,3,5,6
-Tetrafluoro-4-methylbenzyl 3- (2-methyl-1-propenyl) -2,2-dimethylcyclopropanecarboxylate, 2,3,5,6-tetrafluoro-4-methylbenzyl 3- (2- Chloro-2-fluorovinyl) -2,2-dimethylcyclopropanecarboxylate, 2,3,5,6-tetrafluoro-4-methylbenzyl 3- (1-propenyl) -2,2-dimethylcyclopropanecarboxylate 2,3,5,6-tetrafluorobenzyl-chrysanthemate, 2,3,5
6-tetrafluorobenzyl-2,2-dimethyl-3-
(1-propenyl) cyclopropanecarboxylate,
4-methyl-2,3,5,6-tetrafluorobenzyl-chrysanthemate, 4-methyl-2,3,5,6-tetrafluorobenzyl-2,2-dimethyl-3- (1-
Propenyl) cyclopropanecarboxylate, 4-methyl-2,3,5,6-tetrafluorobenzyl-2,
2-dimethyl-3- (2,2-difluorovinyl) cyclopropanecarboxylate, 4-methoxymethyl-
2,3,5,6-tetrafluorobenzyl-chrysanthemate, 2,3,5,6-pentafluorobenzyl-
2,2-dimethyl-3- (2-chloro-2-trifluoromethylvinyl) cyclopropanecarboxylate, 4
-Propargyl-2,3,5,6-tetrafluorobenzyl-3- (1-propenyl) -2,2-dimethylcyclopropanecarboxylate, 4-methoxymethyl-
2,3,5,6-tetrafluorobenzyl-2,2
Examples include 3,3-tetramethylcyclopropanecarboxylate, 4-propargyl-2,3,5,6-tetrafluorobenzyl-2,2,3,3-tetramethylcyclopropanecarboxylate. Among these, empentrin, transfluthrin, terarethrine, 2,3,5,6-tetrafluoro-4-methoxymethylbenzyl 3- (1-propenyl) -2,2-dimethylcyclopropanecarboxylate are preferred.

As a pyrethroid insecticide having a vapor pressure of less than 0.1 mPa (20 ° C.), for example, phthalthrine [N- (3,4,5,6-tetrahydrophthalimide)]
-Methyl dl-cis / trans-chrysanthemate], dl · d-T80-phthalsulin [1,3,4,
5,6-hexahydro-1,3-dioxo-2-indolyl) methyl dl-cis / trans-chrysanthemate], permethrin [3-phenoxybenzyl dl-
Cis / trans-3- (2,2-dichlorovinyl)-
2,2-dimethyl-1-cyclopropanecarboxylate], phenothrin [3-phenoxybenzyl d-cis / trans-chrysanthemate], imiprosulin [2,4-dioxo-1- (prop-2-ynyl) -imidazo Lysin-3-ylmethyl (1R) -cis / trans-chrysanthemate], fenvalerate [α-cyano-3-phenoxybenzyl-2- (4-chlorophenyl) -3-methylbutyrate], cypermethrin [α-
Cyano-3-phenoxybenzyl dl-cis / trans-3- (2,2-dichlorovinyl) -2,2-dimethylcyclopropanecarboxylate], cyphenothrin [(±) α-cyano-3-phenoxybenzyl (+ )
-Cis / trans-chrysanthemate.

[0012] The pharmaceutical composition may contain various additives. For example, citral, citronellal, citronellol, eugenol, methyleugenol, geraniol, cinamic aldehyde, linalool, perilaldehyde, nepetalic acid, methylheptenone, decylaldehyde, myrcene, geraniol acetate, thymol,
Limonene, cineole, pinene, cymene, terpinene,
Sabinen, elemen, cedren, elemol, vidrol, cedrol, hinokitiol, tsuaplisin, tropoloid, hinokitin, tsuyosen, borneol, camphene, terpineol, terpinyl ester, dipentene, farandren, cineole, cariolefin, vanillin, furfural, furfuryl alcohol,
Pinocalveol, pinocone, myrtenol, belbenone, carvone, eudesmole, piperiton, tsuen, funky alcohol, methyl anthranilate,
Bisabolene, bergaptor, nonyl aldehyde, nonyl alcohol, nootkatone, octyl aldehyde, linalyl acetate, geranyl acetate, nerolidol, ocimene,
Natural essential oils such as methyl anthranilate, indole, jasmon, benzaldehyde, and pulegone; butyl carbitol 6-propyl-piperonyl ether, octachlorodipropyl ether, isobornyl thiocyanate acetate, N-octylbicycloheptenecarboximide, N- (2-ethylhexyl) -1-isopropyl-
4-methylbicyclo (2,2,2) oct-5-ene-
A synergist such as 2,3-dicarboximide; optionally, an antioxidant, a surfactant, a stabilizing aid, a solubilizer, an auxiliary solvent, an ultraviolet inhibitor, a fragrance, a dye, and the like. it can. The mixing ratio is not particularly limited, but it is preferable that the formulation is determined in consideration of the target pest, purpose, synergistic effect, desired physical shape or appearance, and the like.

Further, in a pharmaceutical composition containing a pyrethroid insecticide, a non-pyrethroid insecticide is used.
In combination with the pyrethroid insecticide according to the present invention, the synergistic use of the desired insecticidal efficacy, human animal toxicity,
There is no limitation as long as it matches the selection of the target component.

The carrier used in the present invention is preferably a solvent or a porous substance.

When a solvent is used as the carrier, the solvent is
Water, alcohol or kerosene are preferred. Which of the above is selected can be determined by environmental factors such as the properties of a solid surface (hereinafter referred to as a treated surface) on which the drug carrier is sprayed.

It is preferable to use water as a carrier when plants are planted in the surroundings and it is not desired to attach an organic solvent thereto, or when the treated surface is lawn and it is desired not to harm it, There are cases where there is a flammable substance and it is necessary to avoid danger. In addition, in order to solubilize the pyrethroid-based insecticide in water, it is also possible to use an arbitrary mixture of solvents such as alcohol-based and glycol-based solvents.

As a case where it is preferable to use an alcohol as a carrier, there are cases where it is desired to minimize stickiness immediately after spraying the drug carrier. The reason for this is largely due to the high volatility of the alcohol, but the fact that the use of a surfactant or an auxiliary solvent is not required due to the high solubility of the alcohol also greatly contributes.

In a case where kerosene is preferably used as the carrier, for example, when the treated surface is made of a water-repellent material such as a wooden deck, and it is desired to increase the adhesion of the drug carrier, it is necessary to prevent runoff due to rainfall or the like. There are cases where the effect is desired to be maintained for a long period of time.

As a method for supporting the drug composition on a solvent,
If the solubility of pyrethroid insecticides is high, such as kerosene or alcohol, simply dilute.If the solubility of pyrethroid insecticides is low, such as water, add a surfactant or co-solvent to disperse. Preferably.

When the carrier is a solvent, the compounding amount of the drug composition is preferably 0.0001 to 3% by weight from the viewpoint of uniformly and uniformly dispersing the drug composition over a wide range. In addition, when the formulation is an aerosol, uniformity is more easily obtained than when a liquid is sprayed. Therefore, the blending amount of the drug composition is preferably 0.01 to 10% by weight.

When a porous substance is used as the carrier, the porous substance is not particularly limited as long as it can be easily sprayed and has the ability to carry the pyrethroid-based drug composition and to release it slowly. Substances and organic high molecular substances. As a porous substance, from the viewpoint of considering the load on the environment, for example, it can originally exist in a natural environment such as a powdered substance of a mineral substance or a fired substance thereof, a crushed substance of wood or a plant body or a carbide thereof. Preferred are those which are considered to be easily reduced into the environment even if they do not originally exist, such as those obtained by pulverizing a foam of a biodegradable resin, or granules such as cellulose, cotton, and pulp. Examples of the material of the porous substance include stone, wood, pulp, clay, cork, and gel, regardless of whether it is processed, artificial, or natural, and these can be used alone according to the desired purpose and specifications. Or two or more of them can be used in combination.

The size of the porous material is 0.5 to 10 mm in the case of a pulverized material, and 0,0 in the case of a granular material from the viewpoint of easy handling and sufficient evaporation of the drug composition taken into the inside. An average particle size of from 0.01 to 5 mm, and in the case of a granulated product, from 0.5 to 10 mm is preferred.

As a method of supporting the drug composition on the porous substance, a method of directly spraying a drug composition containing a pyrethroid-based insecticide on the porous substance, a method of once dispersing the composition in an organic solvent or water, and the like, And the like, but the method is not limited thereto.

When the carrier is a porous substance, the compounding amount of the drug composition is preferably 0.001 to 3% by weight, from the viewpoint of uniformly and uniformly dispersing the drug composition over a wide range, and 0.001 to 0.001% by weight. -1% by weight is more preferred.

When a solvent is used as a carrier, the amount of the drug carrier to be sprayed on the treated surface depends on the type of the solvent, the desired duration of the effect, the condition and material of the treated surface, and the type of the pyrethroid insecticide. However, the provided drug composition substantially evaporates without being adsorbed on the treatment surface. For example, in the case of a non-water-permeable treatment surface, unnecessary discharge of the drug composition is prevented, and In the case of an aqueous treatment surface, the concentration is preferably 10 to 1000 ml / m ² from the viewpoint of preventing penetration below the treatment surface. When the formulation is an aerosol, uniformity is more easily obtained than when a liquid is sprayed. Therefore, the spray amount of the drug carrier on the treated surface is preferably 1 to ²⁰ ml / m ² .

When the carrier is a solvent, the formulation is as follows:
Examples include oils, emulsions, aerosols and the like. As a spraying method, a hand spray, a power sprayer, a watering can and the like can be arbitrarily selected. As a distribution method of the drug carrier, it is distributed in the form of a concentrated solution, and at the time of use,
A method of diluting with water or the like on site is also economical and preferable.
Aerosols are usually used in the form of space spraying and application spraying, but application spraying is preferred as a usage suitable for the present invention.

When the porous material is used as the carrier, the amount to be sprayed depends on the type of the porous material, the intended duration of the effect, the condition and material of the treated surface, and the type of the pyrethroid insecticide. From the viewpoint of maintaining the uniformity of the effect by uniformly dispersing the particles, and not impairing the environmental beauty due to the residue after the effect is exerted, the amount is preferably 10 to 1000 g / m ² .

By spraying these drug carriers, the vapor pressure is 0.1 mPa (20 ° C.) or higher, and the amount of steam sprayed on the treated surface as a pyrethroid insecticide having an insecticidal effect is 0.5 to 500 mg / m ² is preferred, and 10 to 5
00 mg / m ² is more preferred. In addition, if it is possible to spray while selecting a place where the pests seem to be lurking, this amount can be reduced to 0.05 to 20 mg / m ² .

When a drug composition further containing a pyrethroid insecticide having a vapor pressure of less than 0.1 mPa (20 ° C.) is used, the vapor pressure is reduced to 0.1 mPa (20 ° C.) by spraying a drug carrier. C)), the amount to be sprayed on the treated surface as a pyrethroid insecticide is less than 1 to 1,000.
Preferably ^{mg / m 2, 10~500mg / m} 2 is more preferable.

The solid surface of the environment in which insects fly is preferably an outdoor ground, a floor or a wall. As the outdoor ground,
Examples include soil, stone, lawn or paved ground.
Plants may be planted on the outdoor ground. Examples of the floor surface include a concrete surface and the like.

[0031] As the outdoor flying insect of the present invention,
All insects that cause damage or discomfort to humans outdoors are included. For example, dipterans such as flies, flies, mosquitoes, drosophila, and midges; hymenoptera such as bees and ants; coleoptera such as potato beetles, scarab beetles, suicide beetles, canabuns, horned beetles; , Etc., but are not limited to these pests.

The vapor pressure of the present invention is 0.1 mPa (20 ° C.)
That is, the vapor is sprayed on a solid surface of an environment where insects fly, by spraying a drug carrier containing a drug composition containing a pyrethroid insecticide having an insecticidal effect on a carrier, and the vapor of the drug composition is vaporized. By forming a vapor barrier according to the above, insects flying outdoors can be controlled. Further, in the method of the present invention, when the pyrethroid insecticide evaporates into the air from the drug carrier sprayed on the solid surface of the environment in which the insect flies, the sprayed area itself is the area of evaporation of the drug composition. Therefore, to secure a large amount of effective transpiration area, to form an active ingredient barrier in the space above the sprayed area and to control humans from flying insects under favorable conditions for natural transpiration of the drug composition. Can be.

Further, by using a drug composition further containing a pyrethroid insecticide having a vapor pressure of less than 0.1 mPa (20 ° C.), it is possible to exterminate flying insects and also to have a vapor pressure of 0. A pyrethroid insecticide having a temperature of less than 1 mPa (20 ° C.) is retained on the treated surface to act on the treated surface, or to kill and repel creeping insects such as ants that are living areas on the treated surface. It is also possible to get rid of them.

[0034]

The present invention will be specifically described below with reference to examples. However, the present invention is not limited to only this embodiment.

Example 1 and Comparative Example 1 Transfluthrin [vapor pressure: 0.4 mPa (20
C)]]. An aqueous emulsion prepared by mixing and emulsifying at a weight ratio of 0.01% by weight, 0.03% by weight of a surfactant, and 99.96% by weight of ion-exchanged water was adjusted to a lawn surface (500 ml / m ² ). Example 3 was sprayed uniformly using a watering can on a (3 × 5 m rectangular area). At night, fireworks were performed for about one hour in the treatment area, and the number of mosquito bites and the number of flying insects were observed.

Also, several days later, an aerosol containing 0.01% by weight of transfluthrin and 0.03% by weight of a surfactant was prepared in the same place as Comparative Example 1, and the aerosol was placed in the space at substantially the same time. Spray almost the same amount as
Fireworks were also performed to observe the number of mosquito bites and the number of flying insects. (Subjects: 4 parents and children)

As a result, as shown in Table 1, in Example 1, no mosquito bites were found, and no flying insects such as moths were seen. In Comparative Example 1, all mosquito bites were found. ,
It can be seen that flying insects such as moths are confirmed.

[0038]

[Table 1]

Example 2 and Comparative Example 2 A solvent prepared by mixing transfluthrin in a weight ratio of 0.05% by weight and ethyl alcohol in a weight ratio of 99.95% was adjusted to 100 ml / m ² to obtain a ground of an outdoor garden. (A rectangular area of 20 × 40 m) was evenly sprayed using a manual sprayer to obtain Example 2. 19-2 hours of business hours
The number of mosquito bites was investigated by a questionnaire to customers who had eaten and drink within three hours of 2:00. (Number of persons listed in the collection questionnaire: 43)

One week later, as in Comparative Example 2, except that permethrin (vapor pressure: 0.07 mPa (20 ° C.)) was used in Comparative Example 2 instead of transfluthrin in Example 2. Then, the number of mosquito bites was investigated. (Number of people listed in the collection questionnaire: 51)

As a result, as shown in Table 2, in Example 2, very few people were bitten by mosquitoes as compared with Comparative Example 2, and the vapor pressure was 0.1 mPa (20 ° C.) or more. It is understood that the use of a pyrethroid insecticide is excellent in controlling flying insects.

[0042]

[Table 2]

Example 3 and Comparative Example 3 0.5% by weight of transfluthrin, 9.5% by weight of ethyl alcohol, cellulose beads (average particle size: 5 mm) 9
Granules were prepared by immersion impregnation at a weight ratio of 0% by weight.
The obtained granules were evenly spread at a width of about 2 m around a tent (3 × 3 m) set up at a campsite so as to be 100 g / m ² . 4 hours from 18:00 to 22:00,
The number of mosquito bites in the tent and the number of pests that entered the tent were investigated.

After one to two days, as Comparative Example 3, a mosquito coil having a transfluthrin content of 0.02% by weight and an arethrin 0.1% by weight was used for the same time period as in Example 3. The same investigation as in Example 3 was conducted in a state where six to eight tubes were installed at intervals around the tent and kept burning. (Subject: 3 parents and 2 children)

As a result, as shown in Table 3, in Example 3, no mosquito bites and no insect pests were found in both of the two households, but in Comparative Example 3, both mosquito bites were found in the two households. It can be seen that pests entering the inside are recognized.

[0046]

[Table 3]

Example 4 and Comparative Example 4 A wooden house was prepared by dissolving empentine (vapor pressure: 14 mPa (20 ° C.)) at a weight ratio of 3% by weight and kerosene at a weight ratio of 97% by weight to 10 g / m ^2. Example 4 was sprayed on the terrace floor (2 × 5 m) adjacent to the second floor window. After spraying at 17:00 in the evening, 5 hours from 18:00 to 23:00,
The number of flying insects entering through the window was investigated.

Also, several days later, as Comparative Example 4, Example 4
The same amount of empentrin as the processing amount of the above was applied to five paper sheets (10 × 10 cm) in equal amounts and applied.
At the same place as in Example 4, it was hung on the terrace at the same time, and the same investigation as in Example 4 was conducted.

As a result, as shown in Table 4, it was found that the flying insects were less invasive in Example 4, but more flying insects in Comparative Example 4.

[0050]

[Table 4]

Example 5 0.5% by weight of transfluthrin, 0.5% by weight of phenothrin [vapor pressure: 0.02 mPa (20 ° C.)], 9.0% by weight of ethyl alcohol, cellulose beads (average particle size: 5 mm) Granules were prepared by immersion and impregnation at a weight ratio of 90% by weight. The obtained granules were treated with 100
g / m ² tent (3
× 3m) and spread uniformly around 2m in width.
And During 4 hours from 18:00 to 22:00, the number of bites by mosquitoes in the tent was investigated. In addition, the number of creeping insects such as ants that entered the tent for 4 hours from 10 to 14:00 was investigated.
(Subject: 3 parents and 2 children)

As a result, as shown in Table 5, there were no insect pests such as mosquito bites and ants in any two households.
Example 5 confirms that damage by both flying insects and crawling insects can be prevented.

[0053]

[Table 5]

Examples 6-7 Transfluthrin 0.1% by weight, kerosene solvent 4.78
An aerosol was prepared which consisted of a weight%, a surfactant 0.79 weight%, water 59.43 weight%, and liquefied petroleum gas 35 weight%. The obtained aerosol was applied 4.0 to 8.0 ml / m ² (Example 6) or 1.5 to the ground, fences, and plants outdoors where a falcon was generated (10 × 10 m rectangular area). spray applied to a place where a rate of ~3.0ml / m ² (example 7) Aedes occurs, to investigate the number of flying of Aedes. Table 6 shows the number of Aedes flying before and after the treatment (animals / 10 min).

[0055]

[Table 6]

As a result, as shown in Table 6, it is possible to control the Aedes by spraying an aerosol agent outdoors where the Aedes are occurring.

Examples 8 to 9 2,3,5,6-tetrafluoro-4-methoxymethylbenzyl 3- (1-propenyl) -2,2-dimethylcyclopropanecarboxylate [vapor pressure: 0.2 mPa
(20 ° C.)] 0.1% by weight, kerosene-based solvent 4.78% by weight, surfactant 0.79% by weight, water 59.43% by weight,
An aerosol formulation comprising 35% by weight of liquefied petroleum gas was prepared. The obtained aerosol was applied 3.9 to 7.8 ml / m ² (Example 8) or 1.6 to the ground, fences, and plants outdoors where falcons occurred (10 × 10 m rectangular area).
Spray application was performed at a rate of ~ 3.2 ml / m ² (Example 9) where a falcon was generated, and the number of falcons flying was investigated. Table 7 shows the numbers of Aedes that flew before and after the treatment (animals / 10 min).

[0058]

[Table 7]

As a result, as shown in Table 7, it is possible to control the Aedes by spraying an aerosol agent outdoors where the Aedes are occurring.

From the results in Tables 1 to 7, the number of flying insects or the number of mosquito bites was significantly reduced in each example, indicating that the method for controlling outdoor flying insects of the present invention was excellent. Understand.

[0061]

The method of the present invention departs from the conventional viewpoint of performing a chemical treatment on the assumption that an outdoor flying insect comes into direct or indirect contact with an insecticidal component. For the purpose of keeping the behavior environment hygienic and comfortable, it is possible to minimize damage from outdoor flying insects for a certain period of time. The method for controlling outdoor flying insects according to the present invention provides a long-lasting insecticidal effect due to slow release of the drug, is easy to use, and is friendly to humans because the drug does not directly contact the body like a repellent, and is environmentally friendly. Since it is a reduction type, there is no need to worry about post-processing, and it has the effect of being environmentally friendly. The vapor pressure is 0.1m
By using a pharmaceutical composition further containing a pyrethroid insecticide having a Pa (20 ° C.) or less, it is possible not only to control outdoor flying insects but also to control insects such as ants by insect repelling and repelling. It is possible.

Claims (5)

[Claims] 1. An insect flying on a drug carrier having a vapor pressure of 0.1 mPa (20 ° C.) or higher and a carrier carrying a drug composition containing a pyrethroid-based insecticide having a vapor-killing effect. A method for controlling outdoor flying insects, which is sprayed on a solid surface of an environment. 2. The method for controlling outdoor flying insects according to claim 1, wherein the carrier is a solvent. 3. The method according to claim 1, wherein the carrier is a porous substance. 4. The method for controlling outdoor flying insects according to claim 1, wherein the solid surface is an outdoor ground, a floor, or a wall surface. 5. The method for controlling outdoor flying insects according to claim 1, wherein a pyrethroid insecticide having a vapor pressure of less than 0.1 mPa (20 ° C.) is further added to the drug composition.