JP3259864B2 - Pest control method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pest control method using a solid pest control material.

[0002]

2. Description of the Related Art Substances having a pest control function include liquid and solid substances.

Conventionally, in the case of a liquid substance, when the substance is used for pest control, various kinds of machinery and equipment can be used, and an appropriate one can be selected from various kinds of usage methods. Therefore, liquid substances are generally used heavily for pest control.

On the other hand, when a solid substance is used for controlling insect pests, it is only used by a method such as roughly spraying it by hand or the like. When the pesticide is fine, it is difficult to perform the spraying operation, so that the particle size distribution of the sprayed pesticide greatly varies.

[0005] Furthermore, since the method of using the insect-controlling material is limited to spraying, it is less used as a insect-controlling material than a liquid substance.

[0006]

However, solid pest control materials generally tend to maintain a moderate effect for a long period of time as compared with liquid pest control materials.

[0007] Considering the characteristics of the pesticidal material, the use of such a solid pesticidal material can contribute to the reduction of environmental pollution caused by the pesticidal material.

According to the study of the present inventor, among the solid pest control materials, those which mainly exert the pest control effect are fine particles having a particle size smaller than the hair spacing of the pest to be controlled. .

[0009] Therefore, the inventor of the present application has found that, when spraying such a pest-controlling material, it is important to uniformly disperse the fine particles throughout the area to be sprayed in order to secure the pest-controlling function. I noticed.

The present invention has been made based on such a background, and is a method for controlling pests using a solid pest-controlling material, in which the variation in the density of fine particles due to the application of the pest-controlling material is reduced. It is an object of the present invention to provide a product which can reduce the number of insects, stably exhibit a pest control effect, and can be used relatively easily.

[0011]

In order to achieve this object, an invention according to claim 1 is a pest control material comprising fine particles of a pest control material which is a solid substance having an insect repellent effect. The material contains fine particles having a particle size smaller than the hair spacing of the pest to be controlled, and the pesticide is sprayed using a spraying device.

[0012]

According to the first aspect of the present invention, a pest control material comprising fine particles of a pest control material, which is a solid substance having an insect repellent effect, is sprayed to a required site using a spraying device.
It is easy to spray the pesticide relatively uniformly.

[0013] Since the sprayed pest-controlling material contains a fine particle having a particle size smaller than the hair spacing of the pest to be controlled at a probability of approximately a constant probability, the pest-controlling material is used. In the site where is sprayed, the pest control effect can be stably exhibited.

[0014]

Next, an embodiment will be described. First, an outline of the insecticidal mechanism basically expected in the present application will be described with reference to FIGS. 3 to 5, and thereafter, the construction method of the embodiment will be described. explain.

First, the first mechanism will be described with reference to FIG.

FIG. 3 is a schematic plan view of the body surface of the pest, wherein 1 is the pest, 2 is the skin on the body surface of the pest, 3 is the hair of the pest, and 41, 42, 43, and 44 are powdery, for example. Pest control material consisting of zeolite.

The pest 1 takes oxygen into the body through the respiratory tract or the skin 2 and discharges carbon dioxide gas out of the body directly through the skin 2.

A plurality of body hairs 3 are formed on the skin 2 for discharging carbon dioxide gas in this manner.

The hairs 3 are formed at predetermined positions in accordance with the type of the pest 1, and the spacing between the hairs 3 is different, but taking into consideration various pests. If it is standardized schematically, the arrangement of the hairs 3 on the skin 2 of the pest 1 is as shown in FIG.

In addition, pest control materials 41, 42, 43, 44
Although there are naturally various shapes in reality, they are shown as circles in the drawings for simplicity of the following description of the mechanism, and each is different only in the particle size.

The skin 2 on which the body hair 3 is thus formed
The state of adhesion of the insect-controlling materials 41, 42, 43, 44 on the top is as follows.

That is, the pesticidal material 41 has a particle diameter D
₁ is slightly smaller than the spacing dimension P of the body hair 3, but is substantially the same.

Therefore, the pest-controlling material 41 can reach the skin 2 of the pest 1 through the space between the body hairs 3.

Then, the insect-controlling material 41 that has reached the skin 2 of the insect pest 1 adheres to the skin 2 due to lipids, moisture, etc. on the skin 2.

As a result, the part of the skin 2 located below the insect-controlling material 41 is prevented from discharging carbon dioxide from its surface. In the case of a pest that takes in oxygen from the skin 2, the pest-controlling material 41 also prevents the uptake of oxygen from the skin 2 at the site.

[0026] Pest control material 42 is the particle size D ₂ is smaller than the pest control material 41, pest control material 43 is even more a particle size than the particle size D ₂ of the pest control material 42 is small.

The pest control materials 42 and 43, which have a smaller particle size than the pest control material 41, are not hindered by the body hair 3 as is apparent from FIG.
And, like the pest control material 41,
It adheres to the skin 2 and hinders the pest 1 from discharging carbon dioxide.

The pest control material 44 is a comparative example in this example, and has a particle diameter D ₄ larger than the interval P of the body hair 3. As is clear from FIG. 3, the pesticidal material 44 having such a particle diameter prevents any of the body hairs 3 from adhering to the pesticidal material. It is not possible to prevent the carbon dioxide gas discharging action or the like.

When the removal of carbon dioxide gas from the skin 2 at that portion is prevented by the attachment of the insect-controlling materials 41, 42, and 43, the respiratory action of the insect pest 1 generally depends on the area of the attached portion. If the function deteriorates and the area of the portion exceeds the allowable range, respiratory failure will occur, and eventually the pest 1 will die.

Therefore, when exterminating pests using such an exterminator, it is extremely important to increase the area of the skin 2 to which the exterminants 41, 42, and 43 are attached. By appropriately selecting the particle size of the material in accordance with the hair spacing P of the pests, insect repellent performance can be exerted through an increase in the attachment area.

Next, the second mechanism will be described with reference to FIG. 4. This second mechanism is limited to the case where the pest to be controlled has an esophagus.

FIG. 4 schematically shows a cross section of the pest at the respiratory tract. In the pest 1 having the respiratory tract, the pest 1
A trachea 4 extending from the inside of the body opens into the skin 2 to form an esophagus 5.

The trachea 4 and the respiratory tract 5 constitute a tracheal system 6 of the pest 1, and the tracheal system 6 has a function as a passage for introducing oxygen taken into the body by the pest 1 into the body. is there.

In the pest 1 having such an esophagus 5, the distance between the hairs 3 in the vicinity of the esophagus 5 is P, and
Let W be the opening dimension (diameter) of.

In FIG. 4, 81, 82, 8
Reference numerals 3 and 84 denote pest control materials made of, for example, powdery zeolite, and these pest control materials 81, 82, and 8 are used.
Although 3,84 actually have various shapes, they are shown as spheres in the drawing, and each of them has only a different particle size as in the description of the first mechanism.

In the vicinity of the respiratory tract 5 of the pest 1, the behavior of the pest control materials 81, 82, 83, 84 differs depending on the particle size. In the following description, the pest control materials 81, 82, 83, 84 will be described.
82 and 83 function as active ingredients, and the pest control material 84 is positioned as a comparative example.

That is, the pesticidal material 81 has a particle size D ₅
Are smaller than the interval P of the body hair 3 and larger than the opening W of the esophagus 5.

Therefore, the pest control material 81 can reach the skin 2 of the pest 1 through the gap between the body hairs 3 and be located on the surface side of the respiratory tract 5. Then, the insect-controlling material 81 that has reached the skin 2 of the insect pest 1 adheres to the skin 2 due to lipids, moisture, and the like on the skin 2, and the spiracle 5 becomes the insect-controlling material 8.
1 and obstructed, and the uptake of oxygen from the respiratory tract 5 is inhibited.

The insect-controlling material 82 has a particle diameter D ₆ of the body hair 3
Are slightly smaller than the interval dimension P and the opening dimension W of the esophagus 5.

Therefore, the pest-controlling material 82 reaches the skin 2 of the pest 1 in the same manner as the pest-controlling material 81, but can further enter the trachea 4 from the esophagus 5.

When the insect-controlling material 82 enters the trachea 4,
Since the ventilation area of the trachea 4 is significantly reduced, the uptake of oxygen by the pest 1 is impaired, and the pest control material 82 that has entered does not easily fall off the trachea 4. Will surely die.

In the pest control material 83 having a smaller particle size than the pest control material 82, the body hair 3 hardly hinders the pest control material 83 from reaching the skin 2 of the pest 1. , Gestimon 5 also pest control material 83
Due to their much larger dimensions, the pest control material 83 can penetrate into the trachea 4 with a relatively high probability.

The pesticidal material 83 that has entered the trachea 4 in this way is difficult to close the trachea 4 with the single particles as with the pesticidal material 82, but as described above, Since the insects enter the trachea 4 with a very high probability, a plurality of insect-controlling materials 83 adhere and accumulate, so that the ventilation cross-sectional area of the trachea 4 is reduced and the insect pest 1 is in an oxygen-deficient state.

The pest control material 84 is a comparative example in the case of the pest 1, and its particle size D ₇ is larger than the spacing dimension P of the body hair 3.

In such a case, the pest control material 84 is
As a result, the pest 1 cannot reach the skin 2, so that the obstruction function for the respiratory tract 5 cannot be expected. However, since the spacing dimension P of the body hair 3 and the opening dimension W of the spiracle 5 take different values depending on the type of pest, depending on the type of pest, the pest control material 84 is replaced by the pest control material 81 to 8 described above.
3 can act as the equivalent.

Thus, the pest control materials 81, 82, 83
Adheres to the tracheal system 6 of the pest 1 and hinders the uptake of oxygen from the respiratory tract 5 of the pest 1, so that the pest 1 dies due to lack of oxygen and exerts pest control performance.

Next, a third mechanism will be described with reference to FIG. 5. This third mechanism is a physical mechanism utilizing the humidity control or moisture absorption inherent in a solid substance such as zeolite.

Zeolites include natural zeolites and artificial zeolites. Both zeolites generally have an ion exchange capacity generally larger than 50 meq / 100 g, and are necessary for the third mechanism described below to function. It has humidity control properties and the like.

In general, when a foreign substance adheres to the skin 2 or the body hair 3 of the pest 1, the pest 1 performs a behavior of trying to shake off the foreign substance by itself, and with this behavior, the abrasion 7 occurs on the skin 2 of the pest 1. This causes the body fluid of the pest 1 to ooze into the skin 2.

Therefore, at the site of the abrasion 7 thus formed, the pest control material 5 made of zeolite is used.
When the insects 1 are brought into contact with each other, the body fluid of the insect pest 1 is blown out by the humidity control property or hygroscopicity of the insect pest control material 51, and the insect pest 1 dies by dehydration.

In order for such a mechanism to function, it is necessary for the pest control material 51 to reach the site of the abrasion 7 on the skin 2. In general, it is important that the body hair 3 is present and prevents the insect pest control material 51 from coming into contact with the pest control material 51. is there.

For this reason, the zeolite is made into a powdery form, and the particle size D ₈ of the pest control material 51 made of the powdery zeolite is smaller than the interval dimension P between the body hairs 3 of the pest 1. The probability of contact with the abrasion 7 is increased so that the pest can be reliably killed.

The insect-controlling material 52 has a particle diameter D ₉ larger than the spacing dimension P between the hairs 3, and the insect-controlling material 52 is located at the site of the abrasion 7 due to the presence of the hair 3. 2 illustrates a situation where contact is prevented. In FIG. 5, the pest control materials 51 and 52 are used.
Is displayed as a sphere and only the particle size is different for the same reason as described in the first and second mechanisms.

An advantage common to the first to third mechanisms described above is that unlike the conventional insecticide using a chemical pesticide, a highly toxic chemical substance is evaporated at a high concentration in a space where the pests are to be controlled. Pests can be controlled without the use of chemical pesticides on humans and animals, thereby avoiding environmental pollution and without the pests becoming increasingly resistant to the physical properties of powdered solids. Therefore, it is possible to exterminate pests over a long period of time.

The pest-controlling material 8 of the embodiment utilizing such first to third insecticidal mechanisms is obtained by crushing natural zeolite as a pest-controlling material into fine particles having a required particle size. When the ion exchange capacity of this natural zeolite is measured in accordance with the zeolite test method of the Ordinance for Enhancing Ground Force, it is 130 to 170 meq / 100 g, indicating that the natural zeolite has sufficiently large hygroscopicity or humidity control.

The pest-controlling material 8 of this embodiment includes the pest-controlling materials 41, 42, 43, 44, 81, 82, 83, and 8 described in the first to third insecticidal mechanisms.
4, 51, 52 are included.

That is, the particle size distribution of the insect-controlling material 8 is as shown in FIG. 6 (a), and the fine particles having a particle size of 60 μm or less occupy 40% by weight. The reason why attention is paid to fine particles having a particle size of 60 μm or less will be described later.

When the particle shape of the insect-controlling material 8 is observed with a microscope, for example, as shown in FIG. 7, each of the insect-controlling materials 8 is formed in a non-spherical and generally polyhedral shape. Most have a pointed end (hereinafter, pointed end) 24 as shown in FIG.

The pest control material used as the pest control material 8 is not only natural zeolite but also artificial zeolite obtained by boiling fly ash recovered from flue gas of a pulverized coal boiler with an aqueous sodium hydroxide solution. And artificially produced synthetic zeolites.

In addition to these zeolites, solids having an appropriate hygroscopicity or humidity control, such as sepiolite, silica gel, bentonite, talc, silicic anhydride, diatomaceous earth, clay, coral (fossil coral sand), etc. Substances can also be used as pest control materials.

It is also possible to use a mixture of two or more of the above-mentioned zeolites and solid substances.

The fine pest control material 8 obtained by using any of these may be used by mixing a solid substance such as fine powdery shirasu (volcanic ash), fly ash, calcium carbonate and the like. .

Since these do not have hygroscopicity or humidity control as a pest-controlling material, the third insecticidal mechanism cannot be expected, but the first and second insecticidal mechanisms can be expected. Pest control materials 8
Corresponds to.

Shirasu and calcium carbonate have a large number of sharp points 24 in their grain shape, which promotes the formation of abrasions 7 on the skin 2 of the pest 1
When used by mixing with a solid substance such as zeolite or the above-mentioned sepiolite, the third insecticidal mechanism is strengthened. It goes without saying that the material used as an additive for such a purpose is not limited to shirasu.

Further, an agent having a weak medicinal effect such as boric acid may be mixed and added to the insect-controlling material 8 formed of the above-described insect-controlling material. In this case, the insecticidal mechanism described above simultaneously acts on the pest together with the medicinal effect of the drug, so that even if the medicinal effect is weaker than before, the insecticidal effect is sufficiently exhibited.

The powdered pest-controlling material 8 is used, for example, by spraying it using a sprayer 11 shown in FIG.

The sprayer 11 has a blower chamber 13 in which a fan 12 is driven by an engine (not shown) to rotate in the direction of arrow A in the figure. Above the blower chamber 13, the powdered pest control material is provided. And a tank 14 for storing the same. A large number of through holes 15 are formed at the bottom of the tank 14 in contact with the blower chamber 13, and the insect-controlling material 8 stored in the tank 14 is supplied to the blower chamber 13 through these through holes 15. It is supposed to be.

That is, in the blower chamber 13, an airflow B is generated in the direction of the arrow with the rotation of the fan 12. Some airflow B ₁
The diverted to the tank 14 side, it has a powdery pest control material 8 stored in the tank 14 through the through hole 15 so as to stir at its air flow B ₁ a.

Therefore, the insect-controlling material 8 containing the fine particles having an extremely small particle size as described above moves as a whole in the tank 14, thereby stably passing through the through-holes 15 with a substantially constant particle size distribution. The air is supplied to the blower chamber 13.

In the blower chamber 13, a guide passage 17 is formed below the tank 14 for receiving the insect-controlling material 8 dropped from the through-hole 15 and guiding it to the spray nozzle 16 side. since the continuously transported towards the spraying nozzle 16 to the guide passage 17 by the air flow B ₁ of said portion,
The pest control material 8 is transferred while maintaining the particle size distribution supplied from the through holes 15.

The spray nozzle 1 in the guide passage 17
When the insect-controlling material 8 reaches the end on the 6th side, the fan 12
Is mixed into the rest of the air flow B ₂ generated by pest control material 8 is sprayed together with the air flow to the outside from the spray nozzle 16 after this.

As described above, when the insect-controlling material 8 is sprayed by the spraying machine 11, the air flow is maintained while the particle size distribution of the insect-controlling material 8 stored in the tank 14 is maintained substantially as described above. Can be sprayed on the surface of the pest-controlling material 8, thereby avoiding a variation in particle size distribution as in the case of manually disposing the pest-controlling material 8. Can stably exert its pest control effect.

In the above description, a power-type sprayer 11 has been described as an example. However, the same effects as described above can be expected by using a manual sprayer or an aerial sprayer using a helicopter or the like. it can.

The insect pest-controlling material 8 may be simply sprayed directly onto the site to be sprayed using the sprayer 11 as described above. It may be sprayed directly on insects.

Further, prior to spraying of the insect-controlling material 8 by the sprayer 11, a thin binder layer 34 is previously formed on a portion to be sprayed by using, for example, a sprayer, and the thin binder layer 34 is formed thereon before the binder layer 34 is cured. The pest control material 8 may be sprayed to form the pest control coating 33 on the surface of the portion to be sprayed.

As described above, the formation of the insect-controlling coating 33 can prevent the insect-controlling material 8 from being scattered after being sprayed, so that the insect-controlling effect at the site where the insect-controlling material 8 is sprayed can be maintained for a long time. Can be maintained.

For example, when the site to be sprayed is the surface of the plate material 31, the pest-controlling coating 33 formed as described above is schematically shown in FIG.

That is, the pesticidal coating 33 formed on one side of the plate 31 is made of the fine pest-controlling material 8,
It is composed of a thin binder layer 34, and the insect-controlling material 8 is deposited on the surface of the binder layer 34 at a required density. In this embodiment, the binder layer 34 is made of synthetic vinyl acetate glue, but other suitable materials such as an emulsion type or aqueous solution type adhesive can be used.

The pest-controlling material 8 thus held on the surface of the plate material 31 by the binder layer 34 is, for example, 0.3 kgf / c.
It is held with a weak adhesive force of m ² or less, and the pest control material 8 can be detached by the movement of the pest 1.

In this embodiment, as described above, the pest control material 8 contains fine particles having a particle size of 60 μm or less, because termites 1 are considered as the pests 1 to be controlled. is there.

That is, in the first to third insecticidal mechanisms described above, the hair 3 formed on the skin 2 of the pest 1
Irrespective of the presence of the insect, it is important to ensure that the insect-controlling material 8 reaches the skin 2 of the insect pest 1 in order to exert sufficient insect-controlling performance.

For this reason, since the target pest 1 in this embodiment is termite and the spacing P between the body hairs 3 is 60 μm, the pest-controlling material 8 having a particle size of 60 μm or less is contained in the pest-controlling coating 33. The probability of the termites reaching the skin 2 on the body surface of the termites is increased by the pest-controlling material 8 of fine particles having a particle size of 60 μm or less, and the termites 1 as the pests 1 are surely killed.

The pest-controlling material having a particle diameter of more than 60 μm in the pest-controlling coating 33 has the same function as the above-mentioned pest-controlling material for other kinds of pests having a larger hair spacing P than termites. Demonstrate.

When a material having moisture control properties, such as the above-mentioned zeolite, is used as the insect-controlling material of the insect-controlling material 8, the insect-controlling material having a particle size of more than 60 μm is located in the immediate vicinity of the plate 31. The function of adjusting the humidity in the installation space to the drying side to reduce the vitality of the pest 1 is exhibited.

Since the insect-controlling material 8 is detachable as described above, when termites are present on the plate 31, the operation removes the insect-controlling material 8 held on the plate 31. The first to third insecticidal mechanisms function by the separated insect-controlling material 8 to kill termites.

When the adhesive force of the binder is appropriately adjusted, for example, when the adhesive force of the insect-controlling material 8 is set to 0.2 kgf / cm ² or less, the frequency of detachment due to the movement of the insect 1 is further increased, and the probability of the insect-killing mechanism is increased. Increase. Further, such a pest control coating 33 can also be formed by spraying the pest control material 8 with a sprayer 11 while spraying the binder material with a sprayer or the like, and has the same effect as described above. Obtainable.

As described above, each of the above-described insecticidal mechanisms physically depends on the relationship between the particle size of the insect-controlling material 8, the interval P between the body hairs 3 of the insect-controlling insect 1 and the opening W of the esophagus 5. Therefore, it can be used for various pests.

That is, examples of pests that can be targeted for control include, for example, other termites and house mites, such as the mites of the crab, house dust mites, the mites of the house dust mites, and the cockroaches, cockroaches, mosquitoes, flies, and fleas. , Lice, leaf beetle, beetles, beetles, scrophulariid beetle, saw palmetto beetle, scutellaria beetle, weevil weevil, adzuki beetle, beetle beetle beetle, beetle beetle, squirrel, midge beetle, stink bug, stink bug Sand flies,
Nikameiga, Planthopper, Blackleaf leafhopper, Himekogane,
Japanese beetles, beetles, scale insects, spider mites, aphids, conifers, beetles, beetles, pine beetles, pine beetles, bark beetles, scarab beetles, squirrel beetles, and shore beetles.

Among the above-mentioned insect pests, house dust mites such as dust mites and mites do not have a respiratory tract and take up oxygen from the skin 2, so that the second mechanism does not function. In addition, natural zeolite adhering to the skin by the first mechanism is exterminated by inhibiting not only the emission of carbon dioxide but also the uptake of oxygen, and is reliably exterminated by dehydration from abrasion by the third mechanism. can do.

When the above-mentioned pests different from termites are targeted, as is apparent from the first to third mechanisms described above, the pests are determined in accordance with the distance P between the hairs of the targeted pests and the like. Since the particle size of the active ingredient of the pesticide is determined, it is preferable to appropriately adjust the particle size distribution of the pesticide to be used. Hair spacing P
It is efficient to separate only those having a smaller particle size and use this as a pest control material.

For example, in the case where a house mite, the claw mite, is used as a pest to be controlled, the spacing between the hairs is approximately 30 μm.

In this case, for example, when the pest-controlling material 8 having a particle size distribution shown in FIG. 6A is used, a material having a weight percentage of approximately less than 30% functions as an active ingredient capable of reaching the skin of the mites.

However, since the opening dimension W of the esophagus of the sick mite is approximately 1 μm,
The active ingredients that can function as the pest control materials 82 and 83 are extremely small.

Therefore, in this case, as shown in FIG. 6 (b), for example, the particle size distribution of the pesticidal material 8 to be used is increased by increasing the content of fine particles having a particle diameter of 30 μm or less to, for example, 70%. Preferably, this allows the pest control material 82,
The active ingredient that can function as 83 also increases.

Even if the content ratio of the fine particles having a particle size of 30 μm or less is increased in this manner, the insecticidal mechanism against insects such as termites having a larger hair spacing P than the sick mite does not cause any trouble. Further, since the body hair 3 is prevented from hindering the insect pest-controlling material 8 from coming into contact with the skin 2 on the body surface, a reliable insecticidal effect can be expected.

[0096]

As described above, according to the first aspect of the present invention, a pesticidal material composed of fine particles of a pesticidal material, which is a solid substance having an insect repellent effect, is applied to a required portion by using a spraying device. Since it is sprayed, it is easy to spray the pest control material relatively uniformly.

Since the sprayed pest-controlling material contains a fine particle having a particle size smaller than the hair spacing of the pest to be controlled at a substantially constant rate, the pest-controlling material is stochastically contained. In the site where is sprayed, the pest control effect can be stably exhibited.

[Brief description of the drawings]

FIG. 1 is a sectional view of a sprayer used for a pest control method.

FIG. 2 is a schematic diagram of a construction example of a pest control method.

FIG. 3 is an explanatory diagram of a first insecticidal mechanism.

FIG. 4 is an explanatory diagram of a second insecticidal mechanism.

FIG. 5 is an explanatory diagram of a third insecticidal mechanism.

FIGS. 6 (a) and (b) are particle size distribution diagrams of a pest control material, respectively.

FIG. 7 is a grain shape sketch of a pest control material viewed with a microscope.

FIG. 8 is an explanatory diagram of a shape of a pest control material.

[Explanation of symbols]

P Hair spacing D _{1 to} D ₈ Particle size 1 Pest 3 Body hair 8 Pest control material 11 Sprayer (sprayer) 14 Tank 24 Pointed end 33 Pest control coating 34 Binder layer

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-250308 (JP, A) JP-A-1-256217 (JP, A) JP-A-2-169506 (JP, A) JP-A 52-1982 54031 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01N 25/12 A01N 25/02 A01N 25/24 A01N 61/00

Claims (8)

(57) [Claims] 1. A pest control material comprising fine particles of a pest control material which is a solid substance having an insect repellent effect, wherein the pest control material is effective at fine particles having a particle size smaller than the hair spacing of the pest to be controlled. pest control method characterized by shall the components, sprayed with spraying devices of this pest control material. 2. The method for controlling pests according to claim 1,
A method for controlling pests, comprising using one or more of a group of solid substances consisting of artificial zeolite, natural zeolite, sepiolite, silica gel, bentonite, talc, silicic anhydride, and diatomaceous earth as the pest controlling material. 3. The method for controlling pests according to claim 1, wherein
A method for controlling pests, wherein one or more of a group of solid substances consisting of shirasu, clay, calcium carbonate, fly ash, and coral is used as the pest control material. 4. The pest control method according to any one of claims 1 to 3, wherein the pest control material has a polyhedral shape and a pointed portion is formed on a surface thereof. 5. The method for controlling pests according to claim 2, wherein
A method for controlling pests, characterized in that a fine solid material of substantially the same size as the pest control material, the shape of which is formed into a polyhedral shape and a tip is formed on the surface, is added to the pest control material. . 6. The pest control method according to any one of claims 1 to 5, wherein an agent having an insecticidal effect is added to the pest control material. 7. The pest control method according to any one of claims 1 to 6, wherein a binder layer is formed in advance at a site where the pest is to be controlled prior to the application of the pest control material, and before the binder layer is cured, A method for controlling pests, comprising spraying a pest control material on the surface of the binder layer to form a pest control coating. 8. The pest control method according to any one of claims 1 to 6, wherein at the time of spraying the pest control material by the spraying device, simultaneously spraying a binder,
A pest control method comprising forming a pest control coating on a site where pest control is to be performed.