WO2012102344A1 - Noxious insect-controlling net, noxious insect-controlling method and method for setting noxious insect-controlling nets - Google Patents

Abstract

The invention proposes a scheme whereby the intrusion of mosquitoes that transmit malaria can be prevented and residents inside a house can be protected safely with minimal worsening of the living environment in the house. The invention relates to a noxious insect-controlling net, which is disposed on the entire upper surface of a human and animal living space of a building that has walls and a roof and has a human and/or animal living space wherein at least one of humans or domesticated animals live, and which provides a space of an average of 20 centimeters or more from the upper surface of the human and/or animal living space. The noxious insect-controlling net is loaded with a chemical that damages the noxious insect, and the number of meshes per square inch is 300 or less.

Description

Pest control net, pest control method and installation method of pest control net

This application claims priority under the Paris Convention with respect to Japanese Patent Application No. 2011-15340, and is hereby incorporated by reference in its entirety.
The present invention relates to a pest control net for preventing infectious diseases mediated by harmful insects such as insects and mites, a pest control method using such a pest control net, and a method for installing such a pest control net. The pest control net, the pest control method and the installation method of the pest control net of the present invention are used for the purpose of preventing infectious diseases of humans and livestock. In particular, the pest control net, the pest control method, and the installation method of the pest control net of the present invention are highly effective in preventing infectious diseases mediated by mosquitoes.

Many blood-sucking pests cause infectious diseases by transmitting pathogens to humans and livestock. In tropical regions in particular, mosquito-borne infections such as malaria and dengue fever kill many people and hinder economic development. In order to control these disease-borne pests, a method of spraying an insecticide or a method of applying a contact insecticide to the surface of an indoor wall (indoor residue spraying method) has been used. However, these methods have poor sustainability, and their duration is several hours for spraying and up to 6 months for indoor residue spraying. In recent years, an insecticide-treated mosquito net in which a pyrethroid compound is supported on a fiber has been proposed (Patent Document 1). This mosquito net is sold under the trade name “Olyset Net” (registered trademark of Sumitomo Chemical Co., Ltd.).

By sleeping in this mosquito net, people are cut off from contact with disease-borne pests and unpleasant pests, and can prevent disease infection. The advantage of this method is that the insecticide remains in the fiber for a long period of time, and the control effect is maintained for more than 5 years (Non-Patent Document 1). In addition, experiments have shown that pyrethroid compounds used in mosquito nets have a repellent effect on pests and reduce the number of pests in the house (Non-patent Document 2).

In addition, experiments have shown that the opening for ventilation provided at the upper part of the outer wall is more important than the doors and windows as the path for the mosquitoes that mediate malaria into the house (non-patent literature). 3).

Furthermore, it is known that Anopheles invading the house has a habit of stopping well on the ceiling (Non-Patent Document 4).

JP 2008-13508 A

Tami, A. et al. (2004). Evaluation of OlysetTM insecticide-treated nets distributed seven years previously in Tanzania. Malaria Journal 3:19. Dabire, R. K. et al. (2006). Personal protection of long lasting insecticide-treated nets in areas of Anopheles gambiae s.s. resistance to pyrethroids. Malaria Journal 5: 12. Njie, M. et al. (2009). Importance of eaves to house entry by anopheline, but not culicine, mosquitoes. Journal of Medical Entomology 46: 505-510. Roberts, D. R. et al. (1987). The house-frequenting, host-seeking and resting behavior of Anopheles darlingi in southeastern Amazonas, Brazil.

However, pest control with a mosquito net is limited in that it cannot completely protect the residents in the house from disease-borne pests during times other than sleeping. In addition, when the number of family members is large, the number of mosquito nets and the place to install the mosquito nets are insufficient, and the whole family may not be able to sleep in the mosquito nets. Due to these problems, the prevention of infection by insecticide-treated mosquito nets was not complete.

Here, if the airtightness of the house is improved, mosquitoes can be prevented from entering the room. However, there are circumstances where it is difficult to improve the airtightness of houses in areas where malaria occurs frequently. That is, in the frequent occurrence areas such as malaria, the power situation is often bad and the income level is low, so the diffusion rate of air conditioners is low. Therefore, if the airtightness of the house is increased, the temperature of the living space will rise excessively and it will not withstand living.
For this reason, houses with a structure that actively takes outside air into the room are traditionally used in areas where malaria occurs frequently.

For example, a house is constructed by a method in which an outer wall is made of earth wall, brick, wood, bamboo, concrete, etc., and a roof is placed on the outer wall to form a living space inside. In that case, the upper end of the outer wall and the roof An opening is formed by intentionally providing a gap with the lower surface of the substrate. Or the opening part for ventilation may be provided in the upper part of an outer wall, or an opening part may be provided in the part of a roof. Then, outside air is taken into the living space from the opening.
In the house with this traditional structure, the temperature environment of the living space can be well maintained, but a large amount of mosquitoes enter the living space through the opening at night.
If the opening is filled with clay or a plate, the invasion of mosquitoes can be prevented, but the temperature of the living space rises excessively as described above, and it cannot withstand living.
In addition, there may be a measure to prevent mosquitoes from entering by applying a regular fine insect screen to the opening, but in the area where malaria occurs frequently, the number of insects such as insects and moths is numerous and dusty. . Therefore, insect dead bodies and dust adhere to the net in a short period of time, and the insect net is clogged. As a result, the introduction of wind from the opening is hindered and the temperature environment of the living space is deteriorated.

The same can be said for livestock such as cattle, horses, sheep, and goats.
Some livestock sheds have openings in the outer wall, and a structure that takes in the wind from the openings into the small cabin is adopted, but a large amount of mosquitoes live through the openings at night. Invade the space (breeding space).

Therefore, the present invention pays attention to the above-mentioned problems, can protect the residents and livestock in the house and the barn more safely from disease-borne pests, and rarely deteriorate the living environment of the house and the barn. Proposes a strategy.

The present invention provides a new means for reducing indoor pest density, and relates to a ceiling-mounted insecticide treatment net.
The present invention is a building having a wall portion and a roof portion, in which there is a human livelihood space in which at least one of humans and livestock enters, and is installed on the entire upper surface of the human livelihood space, and the human livelihood space A pest control net having an average space of 20 centimeters or more between the top surface of the pest and a pest control net carrying a chemical that damages the pest. The present invention relates to a pest control net having a mesh number of 300 or less.

The preferred number of meshes per square inch is 50 to 140.

The pest control net of the present invention can be made with a knitted structure or a woven structure. In the pest control net of the present invention, the number of meshes per square inch (the number of holes) is 300 or less, preferably 140 or less, so that the mesh size (hole size) is larger than that of a normal insect repellent net. large. Here, in the case of a knitted structure, “mesh” refers to an opening 3 constituted by a knitted wire (yarn) 2 as shown in FIG. 10A, and is not a gap between the knitted wire 2 itself. That is, for example, in a net made of knitted fabric, the knitting lines 2 are tangled to create a large opening 3. This opening 3 is a mesh according to the present invention.
In the present specification, the upper surface of the human livelihood space may be referred to as a “ceiling”.
Since the pest control net of the present invention has a large mesh size (hole size), it has good air permeability. When assuming a house or a livestock shed having an opening between the upper end of the wall portion and the roof portion, in the present invention, an average of 20 centimeters or more is provided between the ceiling covering portion and the ceiling (upper surface of the human livelihood space). Therefore, the wind blown from the opening at the upper end of the wall can be introduced into the ventilation space between the ceiling covering portion and the ceiling. And the wind introduce | transduced from the said ventilation space enters in living space through a ceiling covering part. On the contrary, indoor air is exhausted from the opening through the ceiling covering by the wind introduced from the door or window, and is easily ventilated outdoors. That is, even when the present invention is applied to a house having a ventilation port at the upper part of the wall, the air permeability is not impaired.
Here, in this invention, a ceiling cover part covers the whole upper surface of the living space of a person or livestock, and an area is very large. Therefore, even when the pest control net of the present invention is used for a long period of time, the mesh is not clogged. Moreover, since the air passage area as a whole is large, the air permeability is good and the temperature environment of the living space is not deteriorated.
In addition, since the pest control net of the present invention carries a drug that damages the pest, the pest cannot penetrate the mesh. Even if there is a pest that pierces the mesh, it will always be damaged by the drug. Also, if the drug has repellent properties, even if the mesh is large enough to allow pests to pass, the pests do not approach and the pests cannot pass through the net.
That is, according to the pest control net of the present invention, since it has a ceiling covering portion that covers the entire upper surface of the human livelihood living space in the building, the entry of the pest into the living space is prevented by the ceiling covering portion. .

The advantages of the present invention are summarized as follows.
The first advantage of the present invention is that it is possible to protect residents and livestock in a house or a barn from contact with disease-borne pests even outside of sleeping hours. In the conventional mosquito net, the inhabitants and the like could be prevented from contact with pests only during the sleeping hours, but according to the pest control net of the present invention, because it is a ceiling-installed insecticide treatment net, Pests can be controlled at all times, including when the mosquito net is not used, other than when sleeping.

The second advantage of the present invention is that it prevents the temperature and humidity in the house from deteriorating and does not make residents feel uncomfortable. In tropical regions where infectious diseases such as malaria are a problem, the structure has a structure in which pests can easily enter because there is a ventilation opening at the top of the wall of the house as described above. If the opening is closed to prevent the invasion of mosquitoes that transmit malaria, the temperature and humidity in the house will deteriorate and comfort will deteriorate. The pest control net of the present invention has a large mesh size (hole size) and vents through the entire ceiling covering portion, so that the air permeability of the indoor and outdoor air is ensured without causing clogging. Furthermore, when the pest control net of the present invention is installed in a house where the central portion of the ceiling is high, the ceiling covering portion of the pest control net is inclined and air permeability is further promoted.

The third advantage of the present invention is due to the fact that an anopheles that mediates malaria uses the property of often stopping on the ceiling as follows. Even if a ceiling-installed insecticidal treatment net such as the insect pest control net of the present invention is installed, pests invade through windows, doors, or gaps formed on the wall, but the anopheles has the property of stopping on the ceiling Stops on the ceiling after sucking blood. Since the pest control net of the present invention covers the entire upper surface of the living space in the house, the anopheles is stopped at the ceiling covering portion of the pest control net. As a result, Anopheles weakens or dies under the influence of the chemicals carried on the pest control net.

The fourth advantage of the present invention is that pests sucked from residents and livestock that carry pathogens also contact the ceiling-mounted net due to the nature of the ceiling, ensuring that the pests continue to propagate the pathogen to another person. It can be prevented.

The fifth advantage of the present invention is that the insect pest control net is installed at a position where it is difficult for residents living in the living space, particularly children, to contact, so that the insect can also carry harmful insecticides on the net. It is. For example, even if insecticides such as organophosphorus compounds and carbamate compounds not recommended by WHO for treatment on mosquito nets are used as drugs carried on the net, there is little substantial harm to humans. . Therefore, it is possible to carry on the net a drug that also exerts an effect on a pest population having resistance to a pyrethroid compound.

The sixth advantage of the present invention is that since the installation of the pest control net is simple, the labor and time required for installation are reduced. Such a reduction in labor force is a very important advantage in that the pest control net of the present invention can be installed in more buildings in areas where infectious diseases are prevalent.

The seventh advantage of the present invention is that it is possible to apply a ceiling-installed pest control net on a large scale in an area where infectious diseases are prevalent, resulting in a mass effect, and the pest population density of the entire area. Can be reduced overall.

According to the pest control net of the present invention, for example, pests such as harmful insects and harmful mites can be controlled. Specific examples of such pests include the following.
(1) Anopheles mosquitoes such as An. Gambiae, An. Arabiensis, An. Funestus, An. Melas, An. Minimus, An. Dirus, An. Stephensi, An. Sinensis, An. Anthropophagus, etc.
(2) Clex. Pipiens pipiens, Cx. Quinquefasciatus, Cx. Pipiens pallens, Cx. Pipiens f. Molestus, Cx. Restuans, Cx. Tarsalis, Cx. Modestus, Cx. Tritaeniorhynchus, etc.
(3) Aedes aegypti, Ae. Albopictus, Ae. Japonicus, Ae. Vexans, etc., which are mosquitoes of the genus Aedes.
(4) Abs, flies, flyfish, sand flies, nutka, tsetse flies, chironomids, fleas, lices, bed bugs, sand turtles, cockroaches, ants, termites, ticks, ticks Etc.

As described above, it is desirable that the pest control net of the present invention is applied to a building having a ventilated opening at the top of the wall. That is, it is desirable for the building to have a living space inside the building open to the outside by an opening between the wall portion and the roof portion.

The pest control net is attached to the central part of the upper surface of the human livelihood space, the central part is attached to the inside of the wall part, and between the central part and the peripheral part is fixed or suspended on each part of the upper surface of the human livelihood space It is desirable that it be lowered.

It is desirable that a part of the pest control net is attached by hanging it from the ceiling using a string or the like.

It is desirable that the peripheral edge of the pest control net is fixed to the lower part of the ventilation opening with a pin or the like.

The peripheral edge of the pest control net may be fixed to the upper part of the ventilation opening, but it is desirable that it hangs down along the inside of the wall and covers the opening.

By configuring the pest control net as described above, the pest control net can be installed very easily and in a short time.

The chemical | medical agent currently carry | supported by the pest control net | network should just be a chemical | medical agent which gives a certain damage with respect to a pest by using it individually or in combination. Examples of the drug include insecticides, synergists, repellents, insect growth regulators, and fertility agents. The drug desirably contains one or more selected from the group consisting of insecticides, repellents, insect growth regulators and fertility agents. More preferably, the drug comprises one or more selected from the group consisting of insecticides, repellents, insect growth regulators and fertility agents and a synergist.

Desirably, the insecticide includes one or more selected from the group consisting of pyrethroid compounds, carbamate compounds, organophosphorus compounds, neonicotinoid compounds, and the like.

The synergist is preferably piperonyl butoxide from the viewpoint of high biological activity and safety.

The repellent is desirably diethyl toluamide from the viewpoint of high biological activity and safety.

The insect growth regulator is preferably pyriproxyfen or metoprene from the viewpoint of high biological activity and safety.

It is recommended that the material of the net is resin because it is easy to make the net.

It is recommended that the above drugs are incorporated into the net material.

It is recommended that the drug is coated on the net material.

It is recommended that the drug be incorporated into the net material and coated.
The drug may be kneaded into a net material or may be coated. Further, in the present invention, a net material in which a drug is kneaded and further coated with a drug can be used as the net material. When the drug is further coated on the net material into which the drug is kneaded, the drug kneaded into the net material and the drug to be coated may be the same or different.

The present invention also includes installing the above-described pest control net in a building having a wall portion and a roof portion, and having a human livelihood space in which at least one of humans and livestock enters. It also relates to pest control methods for protecting livestock.

The present invention further provides a method for installing a pest control net, wherein the pest control net is installed in a building having a wall portion and a roof portion and having a human livelihood space in which at least one of humans and livestock enters. And it is fixed or suspended so as to cover the entire upper surface of the human livelihood space in the building and to provide an airflow space of 20 cm or more on average between the upper surface of the human livelihood space. Also, the present invention relates to a method for installing a pest control net including fixing the vicinity of a peripheral edge to a wall.

According to the present invention, the number of pathogen-borne pests in a house or a barn can be dramatically reduced as compared with the case where only an insecticide-treated mosquito net is used. As a result, it is possible to reduce the pathogen infection rate of residents and domestic animals living in the house.
Moreover, according to this invention, indoor air permeability can be ensured and there exists an effect that a living environment is not deteriorated.

It is a perspective view which shows the external appearance of the house which attached the pest control net | network in one Embodiment of this invention. It is a disassembled perspective view of the house of FIG. It is sectional drawing of the house of FIG. FIG. 4 is a cross-sectional view taken along line AA in FIG. 3. It is a cross-sectional perspective view of the wall upper part of the house of FIG. It is sectional drawing of the house which shows the other fixed example of a pest control net | network. It is a perspective view which shows the external appearance of the house which attached the pest control net | network of other embodiment of this invention. It is sectional drawing of the house of FIG. It is sectional drawing of the house which attached the pest control net | network of further another embodiment of this invention. It is an enlarged view of a pest control net in an embodiment of the present invention, where (a) shows an example of a knitted structure and (b) shows an example of a woven structure.

The pest control net of the present invention is formed by knitting or weaving a yarn carrying a drug so as to form a predetermined number of meshes. The pest control net of the present invention has a knitted structure when formed by knitting, and has a woven structure when formed by weaving. FIG. 10A shows an example of a net having a knitted structure formed by knitting the yarn 2 so as to form a predetermined number of meshes 3, and FIG. An example of a woven net formed by weaving so as to form the mesh 3 is shown. The pest control net of the present invention preferably has a knitted structure.

The yarn carrying the drug can be obtained by kneading and / or coating the drug on the net material and spinning it as necessary.
When the net material is a resin, a yarn carrying the drug can be obtained by spinning a resin composition in which the drug is kneaded and / or coated on the resin.
The pest control net of the present invention can also be obtained by forming a knitted or woven net using a yarn not carrying a drug and then coating the drug.

Examples of the resin used for the net material include thermoplastic resins.
As the thermoplastic resin, polyolefin resin, polyvinyl alcohol, polyvinyl acetate, polycarbonate, polyester, polyamide, polystyrene, polymethyl methacrylate, acrylonitrile-butadiene-styrene copolymer, polyvinyl chloride, or the like can be used.

Here, the thermoplastic resin is preferably a polyolefin resin. As the polyolefin resin, the following compounds are preferable.
(I) α-olefin homopolymer: polyethylene, polypropylene, etc.
(Ii) ethylene-α-olefin copolymer: for example, ethylene-propylene copolymer, ethylene-butene-1 copolymer, ethylene-4-methyl-1-pentene copolymer, or ethylene-hexene copolymer Such.
(Iii) Copolymer of an organic carboxylic acid derivative having an ethylenically unsaturated bond and ethylene: for example, ethylene-methyl methacrylate copolymer, ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, or ethylene -Vinyl acetate-methyl methacrylate copolymer.

The size of the mesh 3 (hole size) is appropriately set according to the length of the pest to be controlled, and is preferably such that the pest contacts the net when trying to pass through the net. In general, the size (hole size) of the mesh 3 is in the range of 2 to 5 mm, preferably 2 to 4 mm.

In the pest control net of the present invention, the number of meshes (number of holes) per square inch is 300 or less, more preferably 50 to 140.

Next, the house (building) 10 in which the pest control net | network 1 in suitable embodiment of this invention is installed is demonstrated.
The house 10 is a building where people live, and is composed of an outer wall 11 and a roof portion 12 as shown in FIGS.
As shown in FIG. 2, the outer wall 11 surrounds four sides, and a door 13 is provided in part. The outer wall 11 is provided with pillars 15 at four corners or more, and soil or the like is disposed between the pillars 15 to form a soil wall portion 16.
Between the pillars 15, small pillars and small beams (not shown) are provided to prevent the soil and the like from collapsing.
In the outer wall 11 employed in this embodiment, the height h of the earth wall 16 is lower than the height H of the pillars 15 at the four corners.

The roof portion 12 is a tin roof, and includes a skeleton portion 20 and a tin portion 21. The skeleton part 20 has a main beam 22 at a central portion, and support beams 23 are attached radially and obliquely downward from the main beam 22. Therefore, the frame portion 20 has a high central portion (part of the main beam 22), and the peripheral portions are all inclined downward. Therefore, the height of the peripheral part is uniformly lower than that of the central part.

The tin portion 21 is obtained by striking a steel plate on the skeleton portion 20 and covers the entire upper surface of the skeleton portion 20. The shape of the tin portion 21 is similar to that of the skeleton portion 20 described above, the central portion is high, and the peripheral portion is inclined downward with a certain gradient.
Therefore, the tin portion 21 has a high central portion and the peripheral portion is lower than the central portion.

The roof portion 12 is supported by four columns 15 at the corners of the outer wall 11. That is, an intermediate portion of the support beam 23 of the frame portion 20 is fixed to the tip of the column 15. The support beam 23 is inclined with respect to the column 15, and its tip 25 is outside the region of the outer wall 11.
Here, as described above, in the outer wall 11, the height h of the earth wall 16 is lower than the height H of the pillars 15 at the four corners. As described above, the roof portion 12 is supported by the four pillars 15 at the corners of the outer wall 11, so that the ventilation opening 26 is provided between the upper end of the earth wall portion 16 and the outer wall and the roof portion. Is formed. The opening 26 is also referred to as Eve.

In the house 10, a region surrounded by the outer wall 11 is a living space 30. Further, the inner surface side of the tin portion 21 of the roof portion 12 is a ceiling 31. The ceiling 31 corresponds to the upper surface of the living space 30.

The pest control net 1 of this embodiment is installed in the house 10 as shown in FIG. 3 and covers the entire upper surface of the living space 30.
That is, the pest control net 1 is a single flat net or a net sewn in a certain shape, and a part thereof is hung from the skeleton 20 of the roof 12 and installed.
More specifically, as shown in FIG. 3, the central part 50 of the pest control net 1 is suspended from the main beam 22 of the skeleton part 20 by a suspension string 51. Further, the vicinity of the side portion 33 of the pest control net 1 is fixed to the inner surface side of the outer wall 11 by a pin 36.
These intermediate portions are suspended from a support beam 23 of the frame portion 20 by a suspension string 52.

Since the central part is on the ceiling side and the peripheral part is on the inner surface side of the outer wall 11, the pest control net 1 of this embodiment covers the entire upper surface of the living space 30.
That is, the pest control net 1 has a ceiling covering portion 45 that covers the entire upper surface of the living space 30. The peripheral portion is a hanging portion 46 that hangs down along the inner surface of the outer wall 11.

Moreover, since the center part 50 of the insect control net | network 1 is attached to the main beam 22 highest in the house 10, and the vicinity of the edge part 33 is attached to the outer wall 11 whose height is lower than it, the insect control net | network 1 The pose has a shape in which the hem direction is downward and extends downward.
Therefore, the ceiling covering part 45 of the pest control net 1 is an inclined surface. Further, since the pest control net 1 is suspended from the main beam 22 of the skeleton part 20, there is a gap that becomes a ventilation space 40 between the ceiling 31 and the pest control net 1. The average of the gap is 20 cm or more. Further, an average desirable range of the gap is 20 cm to 150 cm. The ventilation space 40 communicates directly with the opening 26 between the outer wall 11 and the roof portion 12.
That is, in this embodiment, the pest control net 1 does not directly cover the opening 26. Therefore, in this embodiment, the opening part 26 is an open state. There is no obstacle between the opening 26 and the ventilation space 40, and the opening 26 opens into the ventilation space 40.

Here, as described above, the fixing of the pest control net 1 to the outer wall 11 is performed by the pin 36 as shown in FIG. 5, but the pin 36 is slightly inside the side 33 of the pest control net 1. It is installed in the position. The pins 36 are attached at a predetermined interval. Therefore, the side portion 33 of the pest control net 1 has a degree of freedom.

Next, the function of the pest control net 1 in a preferred embodiment of the present invention will be described.
The house 10 in which the pest control net 1 is installed has the opening 26 open, so that wind can be taken indoors through the opening 26. The taken-in wind enters the ventilation space 40 between the ceiling 31 and the pest control net 1. Since the surface of the pest control net 1 is inclined, the wind flows toward the living space 30 through the mesh 3 of the entire ceiling covering portion of the pest control net 1 as shown by the arrow in FIG. That is, since a sufficient ventilation space 40 is secured between the ceiling 31 and the pest control net 1, the outside wind enters the house without any resistance. The remaining air flows to a high position on the ceiling 31 and is replaced with high-temperature air staying on the ceiling. Moreover, since the pest control net | network 1 covers the whole upper part of the living space 30, and is the shape where the skirt spreads and its area is large, the passage resistance of a wind is small. Moreover, since the area is large, it is difficult to cause clogging.

Further, the air that has entered from the door 13 or the like passes through the living space 30 to the ventilation space 40 and is discharged from the opening 26.

On the other hand, in this embodiment, since the opening 26 is opened, mosquitoes also enter the ventilation space 40 between the ceiling 31 and the pest control net 1. However, since the pest control net 1 carries a drug, few mosquitoes pass through the pest control net 1. Moreover, even if it passes through the pest control net 1, the mosquito is weakened by the influence of the drug and rarely sucks blood.
In particular, the spotted mosquito has the property of stopping on the ceiling after blood sucking, so even if it enters through a door or window and sucks blood, it touches the drug when it stops on the ceiling and weakens. That is, in this embodiment, since there is the pest control net 1 at a position corresponding to the ceiling of the living space 30, when the mosquito stops on the ceiling, it touches the medicine and weakens.
Therefore, the resident is rarely sucked blood, and even if blood is sucked, the mosquito cannot escape from the house and does not spread malaria or the like.

In the above-described embodiment, the central part 50 of the pest control net 1 is attached to the highest main beam 22 and is fixed to the center of the ceiling, but may be fixed to other than the center of the ceiling. For example, in the example shown in FIG. 6, the pest control net 1 is fixed at a plurality of locations across the center of the ceiling, and the pest control net 1 straddles the center of the ceiling.

Next, the chemicals carried on the pest control net 1 will be described. Although it does not specifically limit about a chemical | medical agent, For example, the chemical | medical agent which belongs to an insecticide, a synergist, a repellent, an insect growth inhibitor, or a sterilizing agent can be used. These drugs may be used alone or in combination of two or more.

The insecticide is not particularly limited, and for example, an insecticide belonging to a pyrethroid compound, a carbamate compound, an organophosphorus compound, or a neonicotinoid compound can be used.
Examples of pyrethroid compounds include acrinathrin, allethrin, d-arethrin, dd-arethrin, beta-cyfluthrin, bifenthrin, cycloprotothrin, cythruthrin (cyfluthrin) (Cyhalothrin), cypermethrin, dimethylfluthrin, empentrin, deltamethrin, teraleslin, teflutrin, esfenvalerate, etofenproline, etofenproline. opathrin, fenvalerate, flucitrinate, flufenprox, flumethrin, fluvalinate, fluvalline, profluthrin, fenfenprox , Permethrin, benfurthrin, praletrin, pyrethrin, resmethrin, d-resmethrin, sigma-cypermethrin, silaflufen Tefluthrin, tralomethrin, transfluthrin, tetramethrin, d-tetramethrin, phenothrin, d-phenothrin, cyphenothrin, cyphenothrin. Zeta-cypermethrin, lambda-cyhalothrin, gamma-cyhalothrin, furamethrin, tau-fluvalin (tau-fluvalin) rin), natural pyrethrin and the like.

As the pyrethroid compound, permethrin, deltamethrin, or alpha cypermethrin is preferable.

These pyrethroid compounds can be used alone or in combination of two or more. In addition, some of the above compounds have optical isomers, stereoisomers, geometric isomers, etc., but in the present invention, pyrethroid compounds include active isomers and mixtures thereof. .

Examples of carbamate-based compounds include alaniccarb, bendiocarb, benfuracarb, BPMC, carbaryl (carbary1), carbofuran, carbothofen, carbothofen, carboe (Ethiofencarb), fenobucarb, phenothiocarb, phenoxycarb, furathiocarb, isoprocarb (MIPC), metholcarb, MIPC Bed (methiocarb), NAC, oxamyl (oxamyl), pirimicarb (pirimicarb), propoxur (propoxur: PHC), XMC, thiodicarb (thiodicarb), xylylcarb (xylylcarb), and the like aldicarb (aldicarb).

Examples of the organophosphorus compounds include acephate, aluminum phosphide, butathiofos, cadusafos, chlorethoxyphos, chlorfenvinphos (ch1orfenphosphlophos) ), Chlorpyrifos-methyl, Cyanophos (CYAP), Diazinon, DCIP (Dichlorodipropionether), Dichlorfenthion (ECP), Dichlorvos (D: Chlopyrifos-methyl) Methoate, dimethylvinphos, disulfoton, EPN, ethion, ethoprofos, etrimfos, fenthion (MPP), nitrothion (f) fothiazate
), Formothion, hydrogen phosphide, isofenphos, isoxathion, malathion, mesulfenfos, DMTP, DMTP naled: BRP), oxydeprofos (ESP), parathion, phosalone, phosmet (PMP), pirimiphos-methy1 (pyridifention phosphine) lphos), phentoate (PAP), profenofos, propopafos, prothiofos, pyrachlorfos, salithion, phosprotete, sulprofotete Examples include tetrachlorbinphos, terbufos, thiomethon, trichlorphon (DEP), bamidithion, folate, and cadusafos.

Examples of neonicotinoid compounds include imidacloprid (imidac1oprid), nitenpyram, acetamiprid, thiamethoxam, thiacloprid, and diotefurin.

Examples of synergists include α- [2- (2-butoxyethoxy) ethoxy] -4,5-methylenedioxy-2-propyltoluene [piperonylbutoxide (PBO)], N- (2-ethylhexyl) -1 -Isopropyl-4-methylbicyclo (2,2,2) oct-5-ene-2,3-dicarboximide [Sinepirine 500], butyl stearate, bis- (2,3,3,3-tetrachloropropyl) ) Ether [S-421], N- (2-ethylhexyl) bicyclo [2.2.1] hept-5-ene-2,3-dicarboximide [MGK264] and the like. In particular, piperonyl butoxide (PBO) is preferable.

An example of a repellent is diethyl toluamide (DEET).

Examples of insect growth inhibitors include pyriproxyfen, metoprene, hydroprene, phenoxycanoleb, etoxazole, chlorfluazuron, fluazuron, triazuron, novallon, hexaflumuron, diflubenzuron, cyromazine, flufenoxuron, teflubenzuron, Triflumuron, flucycloxuron, hydroprene, lufenuron, nobiflumuron, bistrifluron and the like can be mentioned. In particular, pyriproxyfen and metoprene are preferable.

Examples of fertility agents include pyriproxyfen and metoprene.

In addition, when “Olyset Net” (registered trademark of Sumitomo Chemical Co., Ltd.) manufactured by Sumitomo Chemical Co., Ltd. is used as the pest control net 1, once the pest control net 1 is installed, the pest control effect can be maintained for more than 5 years. Therefore, it is preferable. Therefore, infection can be prevented continuously. Moreover, the control cost per year can be significantly reduced.

In the embodiment described above, the house 10 having the eave (opening 26) has been described as an example, but the present invention can be applied to a building having another structure.
For example, the present invention can also be applied to a house (not shown) in which holes and gaps having a predetermined shape are provided in the outer wall portion and the roof portion.
Moreover, although the thing provided with the roof part 12 of the tin-fired was illustrated as an example of the house 10, the building in this invention is not limited to the house provided with the roof part 12 of the tin-fired. For example, it may be a house that has a roof made of board, grass, or concrete or brick.
The same applies to the wall, and a wall having a known structure such as a plate wall, a brick wall, or concrete can be applied.

Further, the structure of the roof itself is not limited, and may be a roof having an inclination only on one side or a roof having no inclination.
7 and 8 show an example in which the present invention is applied to a house 70 having a roof portion (land roof) having no slope. In the following embodiments, the same members as those in the previous embodiment are denoted by the same reference numerals, and redundant description is omitted.

The house 70 is a building where people live, and is composed of an outer wall 11 and a roof portion 71 as shown in FIG.
As shown in FIG. 7, the outer wall 11 surrounds four sides, and a door 13 is provided in part. The outer wall 11 employed in this embodiment is provided with a rectangular ventilation opening 72 at the top as shown in FIG.

The roof portion 71 is made of concrete and is a land roof having no inclination.
The roof portion 71 is supported by the outer wall 11.

In the house 70, the area surrounded by the outer wall 11 becomes the living space 30. Further, the inner surface side of the roof portion 71 is the ceiling 31.

The pest control net 1 of this embodiment is installed in a house 70 as shown in FIG. 8 and covers the entire upper surface of the living space 30.
That is, the pest control net 1 is the same as that of the previous embodiment, and is a single flat net or a net sewn in a certain shape, and a part thereof is suspended from the ceiling 31 and installed. .
More specifically, as shown in FIG. 8, the central portion 50 of the pest control net 1 is suspended from the ceiling 31 by a hanging string 51. Further, the vicinity of the side portion 33 of the pest control net 1 is fixed to a position below the opening 72 by the pin 36 on the inner surface side of the outer wall 11.
These intermediate portions are suspended from a support beam 23 of the frame portion 20 by a suspension string 52.

Since the central part is on the ceiling side and the peripheral part is on the inner surface side of the outer wall 11, the pest control net 1 in this embodiment covers the entire upper surface of the living space 30.
That is, the pest control net 1 has a ceiling covering portion 45 that covers the entire upper surface of the living space 30. The peripheral portion is a hanging portion 46 that hangs down along the inner surface of the outer wall 11.
Further, since the pest control net 1 is suspended from the ceiling 31, there is a ventilation space 40 between the ceiling 31 and the pest control net 1. The average height of the ventilation space 40 is 20 cm or more. Further, an average desirable range of the ventilation space 40 is 20 cm to 150 cm. The gap 40 is opened indoors to the outdoors by an opening 72 provided in the outer wall 11.
That is, in this embodiment, the pest control net 1 does not directly cover the opening 72. Therefore, in this embodiment, the opening 72 is in an open state.

Also in the pest control net 1 of this embodiment, the house 70 can take in the wind indoors from the opening 72 because the opening 72 is open.

On the other hand, in this embodiment, since the opening 72 for ventilation is opened, the mosquito also enters the ventilation space 40 between the ceiling 31 and the pest control net 1. However, since the pest control net 1 carries a drug, there are few mosquitoes that pass through the net of the pest control net 1. Moreover, even if it passes through the pest control net 1, the mosquito is weakened by the influence of the drug and rarely sucks blood.

FIG. 9 shows still another embodiment of the present invention, and shows an example in which the pest control net 1 is installed in a house having another ventilation opening 75 instead of the opening 26 described above. Yes. The position of the opening 75 is below the position of the opening 26 in FIG. In this embodiment, the central part 50 of the pest control net 1 is suspended from the ceiling 31 by a hanging metal fitting 51. Further, the vicinity of the side portion 33 of the pest control net 1 is fixed to the inner surface side of the outer wall 11 by pins 36a and 36b. The pin 36 a is located above the opening 75, and the pin 36 b is located below the opening 75.
In this embodiment, the ventilation opening 75 is covered with a hanging portion 46 that hangs down along the inner surface of the outer wall 11.

In the embodiment described above, the present invention has been described by taking a house in which a person lives as an example, but the pest control net of the present invention can also be installed in a livestock shed.

In the above-described embodiment, the ceiling (the upper surface of the living space) is configured as a part of the roof portion, but the ceiling may be configured by another member independent of the roof portion.

The present invention may be implemented in combination with other pest control techniques. Examples of other pest control techniques include insecticide-treated mosquito nets, indoor residue spraying methods, wall lining methods, and the like.

In the above-described embodiment, the pest control net 1 is installed such that a gap of 20 cm or more is formed between the ceiling covering part 45 and the ceiling 31 on average.
As a method of making the distance between the ceiling and the ceiling covering portion 45 an average of 20 cm or more, the length of the string is adjusted when the net is suspended from the ceiling using a string, or the inside of the wall surface is vertical from the ceiling. For example, fixing the peripheral part of the net at a position that is 20 cm or more away in average in the direction.
In the present invention, the pest control net 1 directly fixes a part of the net to the ceiling as long as the distance between the net and the ceiling in a portion substantially parallel to the ceiling is 20 cm or more on average. You may install in a house.

Next, tests conducted to confirm the effects of the present invention will be described.
[Test Example 1]
In an area where malaria is prevalent, three standard houses are selected, and two of them have the number of meshes (number of holes) of 75 per square inch according to the method described in Manufacturing Example 1 of Patent Document 1. The insect-proof nets created so as to be individual were installed so as to cover the entire ceiling of the house as in the above-described embodiment (Example 1 and Example 2). The remaining one did not process the ceiling-mounted net (Comparative Example 1). All three conventional pest control methods such as insecticide-treated mosquito nets were continued. The size of the house was about 5.5m in length, about 6m in width, and about 3.5m in height. In Example 1 and Example 2, adult mosquitoes that had entered the house before and after the installation of the pest control net 1 and after 8, 31, 110 days from the installation were collected with an insect tube. The collection was carried out by 3 expert investigators over 20 minutes. The results are shown in Table 1.

From this result, it can be understood that the pest control net 1 of the present example has an effect of significantly reducing the number of mosquitoes.

[Test Example 2]
A certain area where malaria is prevalent is divided into 8 blocks, and 4 blocks are randomly selected therefrom, and the above-mentioned pest control net 1 is installed in all the houses in the block. The remaining four blocks apply only conventional pest control methods such as insecticide-treated mosquito nets. 1 year and 2 years after installation, the population of Anopheles lucidum will be investigated. Also, survey the population's malaria infection rate. As a result, it is confirmed that the number of pests in the house is lower and the malaria infection rate of the residents is lower in the block to which the ceiling-installed net is applied than in the block to which the ceiling is not applied.

1 Pest control net 2 Thread 3 Opening (mesh)
10,70 House (Building)
DESCRIPTION OF SYMBOLS 11 Outer wall 12 Roof part 15 Pillar 16 Earth wall part 20 Frame part 21 Iron part 26,72,75 Opening part 30 Living space 31 Ceiling 33 Side part 36,36a, 36b Pin 40 Ventilation space 45 Ceiling covering part 46 Hanging part 51, 52 Suspension 71 Roof

Claims (16)

A building having a wall part and a roof part and having a human livelihood living space in which at least one of humans and livestock enters, is installed on the entire upper surface of the human livelihood living space, and A pest control net having an average space of 20 centimeters or more in between, and the pest control net is loaded with a chemical that damages the pest, and the number of meshes per square inch is Pest control net that is 300 or less. The pest control net according to claim 1, wherein the number of meshes per square inch is 50 to 140. The pest control net according to claim 1 or 2, wherein the pest control net is installed in a building having a ventilated opening at the top of the wall. The pest control net is attached to the central part of the upper surface of the human livelihood space, the central part is attached to the inside of the wall part, and between the central part and the peripheral part is fixed or suspended on each part of the upper surface of the human livelihood space The pest control net according to any one of claims 1 to 3, wherein the pest control net is lowered. The drug carried on the pest control net includes one or more selected from the group consisting of insecticides, repellents, insect growth control agents, and infertility agents. The pest control net described in 1. The insect pest control net according to claim 5, wherein the chemical carried on the pest control net further contains a synergist. The pest control net according to claim 5 or 6, wherein the insecticide comprises one or more selected from the group consisting of a pyrethroid compound, a carbamate compound, an organophosphorus compound, and a neonicotinoid compound. . The pest control net according to any one of claims 5 to 7, wherein the synergist is piperonyl butoxide. The pest control net according to any one of claims 5 to 7, wherein the repellent is diethyl toluamide. The pest control net according to any one of claims 5 to 7, wherein the insect growth control agent or sterilizing agent is pyriproxyfen or metoprene. The pest control net according to claim 1, wherein a material of the net is a resin. The pest control net according to any one of claims 1 to 11, wherein the drug is kneaded into a net material. The pest control net according to any one of claims 1 to 11, wherein the drug is coated on a net material. The pest control net according to any one of claims 1 to 11, wherein the drug is kneaded into a net material and the drug is coated. It includes installing the pest control net according to any one of claims 1 to 14 in a building having a wall portion and a roof portion and having a human livelihood space in which at least one of humans and livestock enters. , Pest control methods to protect people or livestock. The pest control net according to any one of claims 1 to 14, wherein the pest control net is installed in a building having a wall portion and a roof portion and having a human livelihood space in which at least one of humans and livestock enters. It is fixed in such a way that the whole upper surface of the human livelihood space in the building is covered and an air ventilation space of 20 cm or more is provided between the upper surface of the human livelihood space on average. A method for installing a pest control net, including hanging and fixing the vicinity of the peripheral edge to a wall.

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