JP2005295810A - Method for preventing noxious insect from invading into building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for preventing noxious insects from invading into a building continuously and stably even without spraying a chemical in the building. <P>SOLUTION: This method for preventing the noxious insects from invading into the building is characterized by installing a chemical-vaporizing device in the vicinity of an entrance or window at the outside of the building, and vaporizing the chemical by 0.5-80 mg/h vaporization amount per 1 m<SP>2</SP>area of the entrance or window of the building. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method for preventing pests from entering a building. More specifically, for example, flies, mosquitoes, moths and other pests are exterminated or repelled at the entrances and windows of buildings such as convenience stores and restaurants, and food factories, pharmaceutical factories, and other buildings. The present invention relates to a method for preventing a pest from entering a building, which can prevent a pest from entering the building.

  In stores such as convenience stores and restaurants, opening and closing the doors causes flies and insects such as mosquitoes to enter the store and cause discomfort to visitors, etc. May become unsanitary. In food factories and the like, it is desired to prevent these pests from entering the factories for food hygiene.

  Conventionally, as an effective method for controlling such pests, there has been proposed a method for controlling flying pests in which an aerosol automatic spraying device is installed in a building and a medicine is intermittently sprayed from the aerosol into the air (for example, Patent Documents). 1), this method has an advantage that flying insects can be efficiently controlled with a simple device.

  However, in this method, since the medicine is intermittently sprayed from the aerosol into the air, it is difficult to obtain a constant control effect continuously, and since it is the spraying of the medicine in the building, in stores etc. However, since the store clerk may aspirate the sprayed medicine over a long period of time, even though it is a drug that has been confirmed to be safe for the human body, it can only be taken into the human body by suction. It is desirable to avoid it.

  Therefore, in recent years, there has been a demand for development of a method for preventing pest intrusion into a building that can prevent the invading of a pest into a building without spraying a chemical into the building.

JP 2002-220301 A

  The present invention has been made in view of the prior art, and provides a method capable of continuously and stably preventing invading pests into a building without spraying chemicals in the building. The task is to do.

In the present invention, a chemical evaporation apparatus is installed in the vicinity of an entrance or window (hereinafter referred to as “entrance and the like”) outside the building, and 0.5 to 80 mg / h of the drug per 1 m ² of the area such as the entrance and exit of the building. The present invention relates to a method for preventing pest intrusion into a building, characterized in that the chemical is evaporated from the chemical evaporation device with a transpiration amount.

  ADVANTAGE OF THE INVENTION According to this invention, even if it does not spray a chemical | medical agent in a building, it can prevent stably and stably invading a pest in a building.

  Pests, especially flying pests, fly from the outdoors regardless of day and night and invade the building. Therefore, it is considered that the space in the building is continuously sprayed with an insecticide. In particular, it is necessary to disperse the spray of the insecticide in the space and keep it for as long as possible in a building where many people come and go. However, it is difficult to always spread the spray of the insecticide in the space in the building, and if the spray of the insecticide is diffused in the space in the building, the insecticide will inevitably enter the human body by breathing. It is desirable to avoid this as much as possible.

  The present invention is an epoch-making invention that can eliminate such disadvantages and suppress the invasion of pests into a building without spraying an insecticide in the building.

  In the present invention, it is not necessary to spray the insecticide in the building as described above. In the present invention, instead of using the aerosol as in the prior art, the drug evaporation device is used as a means for spraying the drug. It is based on the fact that a chemical evaporation device is installed in the vicinity of an entrance / exit outside the building and the chemical is evaporated from the chemical evaporation device. In the present invention, by adopting such a method, pests such as flies, mosquitoes, and moths can be controlled or repelled outside the building, not inside the building. Pests can be prevented from invading in advance, and as a result, the pests enter the store, causing discomfort to visitors, etc., food and drink becoming unsanitary due to flies, It is possible to prevent obstruction in terms of food sanitation by invading pests into food factories.

  In addition, the chemical evaporation apparatus used in the present invention is not structurally complicated and can be made very compact without being bulky. Therefore, the installation location is hardly selected and a special technique is required. Since it can be easily installed even if it is not, it can be easily installed near the entrance / exit outside the building.

  Thus, since the pest invasion prevention method of the present invention has various advantages, for example, a store such as a convenience store and a restaurant, a factory such as a food factory and a pharmaceutical factory, a medical facility such as a general house and a hospital. It can be used in a wide range of buildings such as facilities, school buildings such as various schools, public facilities such as gymnasiums, museums, art galleries, public baths, camping facilities such as bungalows and cabins.

  According to the method of the present invention, a chemical transpiration device is installed in the vicinity of an entrance / exit outside the building, and the chemical transpiration from the chemical transpiration device prevents various pests from entering the building. Can be prevented.

  Examples of the pests include dipteran insects such as flies, abs, mosquitoes, butterflies, chironomids, flea flies, and mushroom flies, hymenoptera such as bees and ants, crustaceans such as beetles, scarabs, beetles, canabuns, beetles, etc. Examples include insects, lepidopterous insects such as moths, hawksbills, hemiptera insects such as planthoppers, aphids and stink bugs, and spiders such as jumping spiders and jumping spiders, but the present invention is not limited to such examples. .

  The chemical transpiration device can be installed in the vicinity of an entrance / exit outside the building. The entrance of a building means, for example, an entrance / exit for a visitor or the like in a store, and an entrance / exit of a person or an entry / exit of a material or a product in a factory. Moreover, the window of a building generally means the window provided in the building, for example, the window for making ventilation and a sunlight ray enter into a building etc. are mentioned.

  In addition, the vicinity of an entrance / exit outside the building means that it may be near the entrance / exit outside the building, and the range of the vicinity of the entrance / exit differs depending on the type of building, etc. Can not be determined. Usually, the vicinity of the entrance and the like outside the building where the chemical transpiration device is installed is an entrance and exit outside the building from the viewpoint of sufficiently suppressing the invasion of pests by the chemical transpiration from the chemical transpiration device. Within a range within about 2 m, preferably within a range within about 1 m, more preferably within a range within 0.5 m, and even more preferably within a range within 0.3 m, from the end of It is preferable that it exists in. Further, the chemical evaporation device may be installed so as to be adjacent to an entrance / exit outside the building.

  Examples of the chemical transpiration apparatus include those having a fan and a chemical carrier for evaporating the transpirational chemical.

  For example, the fan drives a motor by using an electromotive force of a battery such as a dry battery housed in a chemical evaporation device, or drives the motor by electric power from a general household power source, and rotates using the driving force. Can be made.

  A chemical evaporation apparatus in which a battery such as a dry battery is housed, a motor is driven using the electromotive force of the battery, and the fan is rotated so that the fan rotates using the driving force is There is no need for an electrical cord to connect the transpiration unit and the power supply, so there is no need for troublesome wiring work, and it is easy to carry and easy to install in various outdoor locations. Therefore, there is an advantage that it can be suitably used outdoors because it is safe even if rainwater or the like is applied to the chemical transpiration device.

  The drug carrier is a drug supported on a carrier. Examples of the drug carrier include drug-carrying particles obtained by adhering or impregnating a drug to the particles, and immersing one end of the liquid-absorbing core as a carrier in a solution in which the drug is dissolved in a solvent, thereby absorbing the solution, Examples thereof include a drug absorbent core in which the other end of the liquid absorbent core is opened to the atmosphere.

  Examples of the material used for the drug carrier include synthetic resins such as polyethylene, polypropylene, polyvinyl chloride, polyvinylidene chloride, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyamides, polysulfone, acrylic resins, and highly oil-absorbing polymers. , Inorganic fibers such as glass fibers, pulp, linter, rayon and other natural or synthetic cellulose-based materials, natural fibers such as cotton, hemp, silk, wool, etc., processed into cloth, nonwoven fabric, paper, particles, etc. However, the present invention is not limited to such examples. Among these, because they are insoluble in oil, pulp, linter, rayon, polyester, polypropylene, etc. processed into paper, cloth, nonwoven fabric, particles, natural or synthetic cellulose processed into particles (for example, cellulose Beads) and the like are preferred.

  The shape of the drug carrier is not particularly limited as long as it does not fall out of the vent hole of the drug cartridge and can ensure air permeability. Examples thereof include yarns, fibers, sheets folded, particles, pellets, and the like.

  In the case of particles, the diameter of the particles prevents them from falling out of the vent holes, avoids the fine packing and ensures air permeability, increases the packing efficiency, increases the specific surface area, and evaporates the drug. From the viewpoint of increasing efficiency, it is preferably 2 to 15 mm, more preferably 3 to 10 mm. In addition, the said particle | grain can be directly or indirectly used as an indicator for knowing the residual amount of the chemical | medical agent of a chemical | medical agent carrying particle as needed. In order to give the particles an indicator function, for example, to change the color of the particles, allylaminoanthraquinone, 1,4-diisopropylaminoanthraquinone, 1,4-diaminoanthraquinone, 1,4-dibutylaminoanthraquinone, 1 A dye such as -amino-4-anilinoanthraquinone can be used.

  The drug-carrying particles may be loaded with a drug by impregnating or impregnating the drug with the drug. The drug is added to the raw material resin before kneading the particles and kneaded, whereby the drug-carrying particles It may be taken in. Among these, from the viewpoint of efficiently evaporating the drug, drug-carrying particles in which the drug is supported by impregnating the drug are preferable.

  Note that the amount of drug in the drug-carrying particles varies greatly depending on the size of the drug-carrying particles and the amount used, the type of drug, the usage period of the drug evaporation device, etc. It is preferable to determine appropriately.

  The drug-carrying particles can be filled, for example, in a cartridge that has air permeability but has side surfaces provided with holes through which the drug-carrying particles do not pass. Thus, when a cartridge is used, there is an advantage that new drug-carrying particles can be mounted in the drug evaporation device simply by replacing a used cartridge with a new cartridge.

  The cartridge has a concave inner container having a vent hole on the side surface and a space provided on the inside of the cartridge and a concave outer container having a vent hole on the side surface, and drug-carrying particles are placed in the gap between the two containers. What is configured by filling is that the space inside the inner container is sucked by a fan to take in air from the vent hole of the outer container, and the taken-in air is forced between the drug-carrying particles. By sequentially passing through the gap and the vent hole of the inner container, the drug can be efficiently evaporated, which is preferable.

  As a drug carrier, one end of the liquid absorbent core is immersed in a solution in which the drug is dissolved in a solvent, so that the liquid absorbent core absorbs the solution and the other end of the liquid absorbent core is opened to the atmosphere. When using a liquid core, for example, by rotating a fan using a motor as a driving source, the liquid is blown to the other end of the liquid-absorbing core or ventilated to cause the drug to evaporate from the other end, thereby evaporating the drug. Can be discharged from the inside of the chemical evaporation device to the outside.

  Examples of the solvent used in the solution in which the drug is dissolved in the solvent include lower alcohols such as ethyl alcohol, isopropyl alcohol, and n-propyl alcohol; many solvents such as ethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, and glycerin. Examples thereof include aliphatic alcohols such as kerosene (kerosene), n-pentane and isopentane; esters such as ethyl acetate and isopropyl myristate; ketones such as acetone and methyl ethyl ketone; liquid paraffin and water. These solvents are preferably selected and used as appropriate according to the place of application of the method for controlling flying insects of the present invention, compatibility with agents such as insecticides, and the like.

  The concentration of the drug in the solution is 0.1 to 50% by weight, preferably 2 to 30% by weight, from the viewpoints of drug solubility, liquid absorption ability, volatility, and safety.

  As the liquid absorption core, any liquid absorption core may be used as long as it can suck up the drug solution. Examples of the absorbent core include those obtained by caking inorganic powder or organic powder with a paste, and those obtained by sintering thermoplastic resin particles.

  The size and shape of the liquid absorption core are arbitrary. As an example, a rod-like body having a diameter of about 3 to 15 mm and a length of about 10 to 100 mm can be given. In addition, you may make a liquid absorption core contain a transpiration | evaporation amount regulators, such as dibutylhydroxytoluene, as needed.

  Compared with organophosphorus insecticides, carbamate insecticides, natural essential oil insecticides, etc., the drugs used for drug carriers have immediate effects and repellency, and are relatively safe for the human body and food. Pyrethroid insecticides are preferred because they are excellent, have a low environmental impact, are odorless and have low contamination. Among them, a room temperature transpiration pyrethroid insecticide is preferable from the viewpoint of efficiently evaporating the drug.

  Representative examples of pyrethroid insecticides having room temperature transpiration include metfurthrin, transfluthrin, profluthrin, allethrin, dl · d-T80-alleslin, dl · d-T-areslin, d · d-T-areslin, d -D-T80-praretrin, resmethrin, d.T80-resmethrin, empentrin, teraretrin, framethrin, phenothrin, etofenprox, tefluthrin, fenfluthrin and the like. Among these, metfurthrin, transfluthrin, and profluthrin are preferable because they have excellent insecticidal effects against flies, mosquitoes, feather ants, etc., are low-polluting, have excellent medicinal sustainability, and are excellent in safety. .

  In addition, chemicals include commonly used pest control agents, repellents, efficacy enhancers, surfactants, rust inhibitors, antioxidants, coloring agents, fragrances, deodorants, ultraviolet absorbers, disinfectants, etc. And may be used in an appropriate amount within a range in which the object of the present invention is not inhibited.

  Next, although the chemical vaporization apparatus used for this invention is demonstrated based on drawing, this invention is not limited only to the chemical vaporization apparatus as described in this drawing.

  FIG. 1 is a schematic explanatory view showing one embodiment of a chemical transpiration apparatus used in the present invention. In FIG. 1, the transpiration apparatus main body 1 has a fan (not shown) for transpiration of the transpirated medicine, and a medicine connected to the fan and a motor (not shown) for rotating the fan. A transpiration unit 2 is provided. The transpiration amount of the medicine can be arbitrarily controlled by changing the rotation speed of the fan or intermittently operating the fan.

  The chemical transpiration unit 2 is connected to a cartridge 4 having an air intake 3 disposed on a side surface. A drug carrier (not shown) is built in the cartridge 4. When a fan (not shown) is driven, air is taken in from the air intake 3, and the air passes through the gaps between the drug carriers, whereby the drug evaporates, and the evaporated drug becomes the drug. It is discharged from the transpiration unit 2. The air taken in from the air intake 3 is supplied from a side air intake 7 and a bottom air intake (not shown) disposed on the side surface of the transpiration apparatus main body 1. In this way, a series of flows from the intake of air into the cartridge 4 to the discharge of the drug evaporated in the drug evaporation unit 2 can be continuously and efficiently advanced.

  The evaporated drug is discharged from the drug evaporation unit 2 and then discharged from the drug evaporation port 6 of the lid body 5 into the atmosphere.

  If necessary, the lid body 5 may be provided with a lock portion 8 for fixing the evaporation apparatus body 1. The lid body 5 is provided with a pilot lamp 9 indicating the replacement time of the cartridge 4, but this is also optional.

  The life of the cartridge 4 varies depending on, for example, the size of the cartridge 4 and the usage amount of the drug carrier filled in the cartridge 4, and therefore cannot be determined unconditionally. Therefore, it is preferable to determine appropriately according to these. A motor (not shown) for driving a fan (not shown) is continuously operated, and the pilot lamp 9 is turned off when the energization time for operating the motor reaches a predetermined time. In this case, the life of the cartridge 4 can be easily visually confirmed from the outside. In addition, it is preferable to design the life of the cartridge 4 to be almost the same as the life of the average dry battery 10 because the cartridge 4 and the dry battery 10 can be replaced at a time.

  In addition, the position where the dry battery 10 is installed is arbitrary. In the transpiration apparatus main body 1 shown in FIG. 1, a dry battery 10 is accommodated in a dry battery box 11 installed on the back surface of the chemical transpiration unit 2.

  Unlike the conventional aerosol automatic spraying device, the chemical evaporation device can be operated continuously by turning on the power switch 12, so that it is possible to always prevent pests from entering the building. For example, it can be suitably used for a building or the like in which a doorway is opened and closed regardless of day or night, such as a 24-hour convenience store.

  In addition, when a timer (not shown) is incorporated in the chemical transpiration device, the operating time per day can be arbitrarily changed according to the business conditions such as the store, factory, office, etc. to be installed. it can. Furthermore, when the chemical transpiration device is installed at a high place where human hands cannot reach, a wired or wireless remote control function (not shown) can be installed in the chemical transpiration device.

The amount of chemical transpiration from the chemical transpiration device effectively prevents the invasion of pests into the building, maintains the effect of preventing the invasion of the pests, and enhances the safety to the human body, etc. 0.5 to 80 mg / h, preferably 1 to 80 mg / h, more preferably 1 to 50 mg / h, still more preferably 3 to 50 mg / h, and even more preferably 5 to 50 mg per 1 m ² of the area of the doorway / H.

  In addition, the flow rate when the air containing the drug is evaporated from the drug evaporation port of the drug evaporation device varies depending on the shape and size of the entrance and exit of the building, the installation location of the drug evaporation device, etc. However, it is usually 10 to 1000 L / min, preferably 50 to 500 L / min from the viewpoint of efficiently preventing pests from entering the building and allowing the chemical to evaporate for a long time. It is desirable to be.

  From the viewpoint of efficiently preventing pests from entering the building, the direction in which the medicine evaporates from the medicine evaporating apparatus installed in the vicinity of the entrance and the like outside the building is, for example, as shown in FIGS. ), It is preferable to set so that the evaporated drug flows along the door surface and a layer of the evaporated drug is formed along the door surface.

  Fig.2 (a) is a schematic explanatory drawing which shows one embodiment at the time of installing the chemical evaporation apparatus 15 in the upper part of a door. In the embodiment shown in FIG. 2 (a), the drug is evaporated from the upper part of the door toward the door surface so that the evaporation angle of the drug from the installation surface of the drug evaporation device 15 is about 30 degrees. Since the evaporated medicine moves from the upper part of the door to the floor along the door surface, a transpiration layer of the medicine having a high drug concentration is formed in the vicinity of the door surface.

  Moreover, FIG.2 (b) is a schematic explanatory drawing which shows one embodiment at the time of installing the chemical vaporization apparatus 15 under the eaves. In the embodiment shown in FIG. 2B, the drug is evaporated along the eaves so that the evaporation angle of the drug from the installation surface of the drug evaporation device 15 is about 30 degrees. Since it moves downward along the door surface, a transpiration layer of a drug having a high drug concentration is formed in the vicinity of the door surface.

  As shown in FIGS. 2 (a) and 2 (b), when the drug is evaporated, a transpiration layer of the drug having a high drug concentration is formed in the vicinity of the door surface, so that pests enter the building. Can be effectively prevented. As described above, in order to efficiently prevent pests from entering the building, the transpiration angle of the drug from the installation surface of the drug transpiration device 15 is preferably 0 to 60 degrees, and 10 to 45. It is more preferable that the angle is 10 to 30 degrees.

  Next, although one embodiment when a chemical transpiration apparatus is installed in the vicinity of the entrance / exit etc. of the building exterior is described based on drawing, this invention is not limited only by this aspect.

FIG. 3 is a schematic explanatory view showing an embodiment when the drug evaporation device 15 is installed on the outer wall 14 under the eaves above the entrance / exit 13 outside the convenience store. In FIG. 3, two chemical transpiration devices 15 are installed on the outer wall 14 under the eaves of the convenience store. However, in the present invention, there is no particular limitation on the number of installed devices, and pests enter the convenience store. If it can be sufficiently prevented, one unit may be used. Further, from the viewpoint of effectively preventing pests from entering the convenience store, the transpiration amount of the medicine per 1 m ² of the entrance / exit area of the convenience store (building) is set to the above-mentioned desired amount. In addition, it is preferable to install a plurality of chemical transpiration devices 15.

  In FIG. 3, since the chemical vaporization device 15 is installed under the eaves of a convenience store, it is safe because the child's hand does not reach the chemical vaporization device 15, and is hardly noticeable so that the beauty is hardly impaired. In addition, there is no obstacle during walking.

  Further, the drug is evaporated along the eaves so that the evaporation angle of the drug from the installation surface of the drug evaporation device 15 is about 30 degrees, and the evaporated drug further moves downward along the door surface. Therefore, a drug vapor layer is formed on the door surface, and a transpiration layer of the drug having a high drug concentration is formed in the vicinity of the floor surface. Therefore, it is possible to efficiently prevent pests from entering the convenience store. The number of installed chemical transpiration devices 11 is two due to the large entrance / exit area, but may be three or more when the entrance / exit area of the convenience store is larger.

FIG. 4 is a schematic explanatory view showing an embodiment when the chemical transpiration apparatus 15 is installed on the outer wall 14 at the upper part of the entrance / exit 13 outside the shopping center. In FIG. 4, two chemical transpiration devices 15 are installed above the entrance / exit 13 of the shopping center. However, when the insect pests can be sufficiently prevented from entering the shopping center, one unit is provided. It may be. Also, from the viewpoint of effectively preventing pests from entering the shopping center, the chemical transpiration is performed so that the transpiration amount of the chemical per 1 m ² of the entrance / exit area of the shopping center (building) becomes the above-described desired amount. It is preferable to install a plurality of devices 15.

  In FIG. 4, since the chemical transpiration device 15 is installed at the upper part of the entrance / exit 13 of the shopping center, the chemical transpiration device 15 is hardly conspicuous. It will never be. Further, the medicine is evaporated from the upper part of the door along the door surface toward the lower part of the door so that the medicine evaporation angle from the installation surface of the medicine evaporation device 15 is about 30 degrees, thereby forming a medicine vapor layer. Therefore, since a transpiration layer of a drug having a high drug concentration is formed in the vicinity of the door surface, it is possible to efficiently prevent pests from entering the shopping center.

  The number of the chemical transpiration devices 15 to be installed is two in the embodiment shown in FIG. 4, but may be three or more when the entrance / exit area of the shopping center is large.

  Thus, when a chemical evaporation device is installed in the vicinity of the entrance / exit outside the building, and the chemical is evaporated from the chemical evaporation device, it is not necessary to spray the chemical from the aerosol in the building as in the past. Insect pests can be prevented from entering the building stably.

  Furthermore, according to the present invention, it is possible not only to prevent the invasion of pests into the building, but also to suppress spider nesting in the vicinity of the doorway of the building, etc. As an effect, generation of frogs, geckos and the like can also be suppressed.

  Next, the present invention will be described in more detail based on examples, but the present invention is not limited to such examples.

Example 1
The chemical transpiration device shown in FIG. 1 is directly above the entrance of a building on the grounds of a food factory (height from the floor: 2.2 m, entrance / exit area: about 3.6 m ² , drug: metfurthrin, target pest: chironomid) ( Experimental example 1-1), under the eaves just above the entrance door of the company cafeteria (height from the floor: 2.4 m, entrance area: about 1.8 m ² , drug: transfluthrin, target pests: honey ants and chironomid) (experimental example 1-2) and upper automatic door company office (from floor height: 2.2 m, entrance area: about 3.6 m ^2, the drug: profluthrin, target pests: Kobae and midges) (experimental example 1-3), the transpiration angle of the medicine from the installation surface of the medicine transpiration apparatus was set to be 30 degrees, and the medicine was transpirated with the transpiration amount shown in Table 1 for 24 hours.

In Table 1, the transpiration amount of the drug is 0.18, 0.36, 1.8, 3.6, 18, 36, and 180 mg / h in Experimental Example 1-1 and Experimental Example 1-3. Seven steps were set, and in Experimental Example 1-2, seven steps of 0.09, 0.18, 0.9, 1.8, 9, 18, and 90 mg / h were set. A value obtained by dividing each transpiration amount by each entrance / exit area (m ² ) was used as the transpiration amount (mg / h) of the medicine per 1 m ² entrance / exit area of the building.

In each building, there is an insect trap for catching pests, and by counting the number of pests caught by the trap, the formula for the pest invasion prevention rate is:
[Intrusion prevention rate]
= [Number of pests invading before installation of chemical transpiration device-Number of pests invading during operation of chemical transpiration device]
÷ [Number of invading pests before installation of chemical transpiration device]
It was calculated according to In the above formula, the time before the installation of the chemical evaporation device and the time during the operation of the chemical evaporation device were adjusted to be equal to each other. Table 1 shows the results of the intrusion prevention rate.

  From the results shown in Table 1, in each experimental example, when the chemical is evaporated with a certain amount of chemical transpiration, it is possible to efficiently and stably prevent invading pests into the building. I understand.

Example 2
The simulation room 16 (floor area: about 13.2 m ² , height: 2.5 m, entrance / exit area: 1.8 m ² ) shown in FIG. 5 in which the chemical evaporation apparatus shown in FIG. It was installed at a position near the entrance / exit A (height from the floor: about 2 m), and an insect trap for trapping pests was installed in the simulation room 16.

With the entrance of the simulation room 16 opened, the transpiration angle of the drug from the installation surface of the drug transpiration device is set to 30 degrees, and various chemicals shown in Table 2 are evaporated from the drug transpiration device (of the building) The amount of drug transpiration per 1 m ^{2 of the} entrance / exit area: 5 mg / h, target pests: honey beetle and chironomid), and the invasion prevention rate of the pests in each course were examined in the same manner as in Example 1. The results are shown in Table 2.

  From the results shown in Table 2, in each experimental example, when the chemical is transpirated with a certain amount of chemical transpiration, the infestation of the pests into the building is efficiently and continuously prevented. You can see that you can. In addition, it can be seen that the use of transfluthrin, profluthrin, or metfurthrin among the drugs can maintain the insect pest invasion inhibition rate at a high level for a long period of time.

Example 3
Metofluthrin was used as a drug, the transpiration rate of the drug per 1 m ² of the entrance / exit area of the building was 2.8 mg / h, and the target pests were honey and chironomid. The position of the chemical transpiration apparatus shown in FIG. 1 is set at the position A (height from the floor: about 2 m), position B (height from the floor: about 1 m) or C in the simulation room 16 shown in FIG. The insect pest invasion inhibition rate was examined in the same manner as in Example 2 except that it was installed at a position (height from the floor: about 5 cm) and the chemical was transpiration for 24 hours.

  As a result, when the chemical transpiration device is installed at the position A in the simulation room 16, the pest intrusion prevention rate is 90%, and when it is installed at the B position, the pest invasion prevention rate is 60%, and the pest intrusion prevention rate is installed at the C position. In this case, the penetration rate of pests was 50%. From this, it can be seen that even if the chemical transpiration apparatus is installed at any position of the simulation room 16 from A to C, it is possible to efficiently prevent the invading of the pests into the building. In particular, when the installation position of the chemical transpiration device is installed at the position A (the upper part of the entrance / exit outside the building) of the simulation room 16, the building of the pest is compared with the case where it is installed at the positions B and C. It turns out that the penetration | invasion into an inside can be blocked | prevented more efficiently.

It is a schematic explanatory drawing which shows one embodiment of the chemical transpiration apparatus used for this invention. (A) is schematic explanatory drawing which shows one embodiment at the time of installing the chemical vaporization apparatus in this invention in the upper part of a door, (b) is one implementation when the chemical vaporization apparatus 15 in this invention is installed under the eaves It is a schematic explanatory drawing which shows an aspect. It is a schematic explanatory drawing which shows one embodiment when the chemical transpiration apparatus used for this invention is installed under the eaves of a convenience store. It is a schematic explanatory drawing which shows one embodiment when the chemical | evaporation apparatus used for this invention is installed in the upper part of the entrance / exit of a shopping center. It is a schematic explanatory drawing of the simulation room used in the Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Transpiration apparatus main body 2 Chemical vaporization part 3 Air intake 4 Cartridge 5 Lid main body 6 Chemical evaporation opening 7 Side air intake 8 Lock part 9 Pilot lamp 10 Dry cell 11 Dry battery box 12 Power switch 13 Entrance / exit 14 Outer wall 15 Chemical vaporization apparatus 16 Simulation The room

Claims (7)

A chemical transpiration device is installed near the doorway or window outside the building, and the chemical transpiration from the chemical transpiration device with a transpiration rate of 0.5-80 mg / h of chemical per 1 m ^{2 of} the building entrance / exit or window area. A method for preventing pests from entering a building.   The method for preventing pests from entering a building according to claim 1, wherein the chemical transpiration apparatus has a fan and a chemical carrier for transpiring the transpirated chemical.   The method for preventing pests from entering a building according to claim 2, wherein the fan of the chemical transpiration apparatus is driven by a motor using the electromotive force of the battery.   The method for preventing pests from entering a building according to any one of claims 1 to 3, wherein the drug is a pyrethroid insecticide.   The method for preventing pests from entering a building according to claim 4, wherein the pyrethroid insecticide has room temperature transpiration.   6. The method for preventing pests from entering a building according to claim 5, wherein the pyrethroid insecticide having transpiration at room temperature is at least one selected from the group consisting of metfurthrin, transfluthrin and profluthrin.   The method for preventing pest intrusion into a building according to any one of claims 1 to 6, wherein the chemical transpiration device is installed at an entrance / exit outside the building, an upper part of the window, or under the eaves.

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