JP2001114615A - Method for controlling pest - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an excellent method for controlling a pest. SOLUTION: This method for controlling the pest comprises forming the relative flow of air on the surface of an insect repellent obtained by allowing a carrier to carry 2,3,5,6-tetrafluoro-4-methoxymethylbenzyl 3-(2-methyl-1- propenyl)-2,2-dimethylcyclopropanecarboxylate as an active ingredient, to volatilize the active ingredient in the air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for controlling pests, and more particularly to a method for killing pests.

[0002]

SUMMARY OF THE INVENTION The present invention has been made mainly for controlling pests indoors.

[0003]

The present inventors have conducted intensive studies and as a result, have found that 2,3,5,6-tetrafluoro-4-.
Methoxymethylbenzyl 3- (2-methyl-1-propenyl) -2,2-dimethylcyclopropanecarboxylate as an active ingredient by causing a relative air flow on the surface of the insect repellent material held on the carrier. The present inventors have found that the active ingredient volatilizes efficiently in the air, and as a result, an excellent pest control effect can be obtained.

That is, the present invention relates to 2,3,5,6-tetrafluoro-4-methoxymethylbenzyl 3- (2
-Methyl-1-propenyl) -2,2-dimethylcyclopropanecarboxylate (hereinafter, referred to as the present compound)
A method for controlling insect pests, comprising generating a relative air flow on the surface of an insect repellent material, wherein the active ingredient is retained on a carrier as an active ingredient to volatilize the active ingredient.

[0005] Another embodiment of the pest control method according to the present invention is:
A carrier having an insect repellent that can evaporate upon contact with air is provided, and the carrier is moved, thereby forming a flow of air to the carrier.

[0006] The pest control apparatus according to the method of the present invention includes a carrier having an insect repellent which can evaporate upon contact with air, and means for moving the carrier and thereby forming a flow of air to the carrier. .

In another embodiment of the pest control method according to the present invention, the pest control device has a carrier and a motor. The carrier includes an insect repellent that can evaporate upon contact with air, and has a shaft and a specific portion fixedly supported by the shaft and extending substantially radially outward from the shaft. The motor rotates the carrier about the shaft, thereby creating an air flow over the carrier to promote evaporation of the insect repellent.

In another embodiment of the pest control method according to the present invention, the pest control device includes a pest control material that can evaporate upon contact with air. The carrier has a shaft and a blade. The blade is fixedly supported on the shaft and extends substantially radially outward from the shaft. In particular, the blades are oblique to a plane perpendicular to the shaft. Bearings are provided to support the carrier so that the carrier can rotate about the shaft. The device further has a motor and a fan. The fan is drivingly connected to the motor, and the fan rotates to apply airflow to the inclined blades of the blade to rotate the carrier. Thereby, another air flow is formed for the carrier, and the evaporation of the insect repellent material is promoted.

[0009] The carrier may be provided with a plurality of blades arranged at equal intervals around the shaft. Also,
The device may be provided with a permeable member surrounding the carrier.

In another embodiment of the method for controlling pests according to the present invention, the apparatus for controlling pests comprises a carrier containing an insect-controlling material that can be evaporated by contact with air. This carrier is
It has a bearing portion, a horizontal portion extending substantially radially outward from the bearing portion, and a vertical portion extending substantially downward from the horizontal portion. The shaft is rotatably connected to a motor so as to rotate, and is engaged with the bearing portion such that the carrier rotates around the shaft by frictional contact between the bearing portion formed when the shaft rotates and the shaft. . Thereby, a flow of air to the carrier is formed, and the evaporation of the insect repellent material is promoted. The fan is fixedly supported on the shaft and rotates with the shaft to provide another flow of air to the carrier that promotes evaporation of the carrier. This fan may be a centrifugal fan and may be arranged inside the carrier.

In another embodiment of the pest control method according to the present invention, the pest control device comprises a rotatable shaft, an arm fixedly supported by the shaft, and extending radially outward from the shaft, and supported by the arm; A carrier containing an insect repellent material that can evaporate by contact with air is provided, and a motor that rotates a shaft to form a flow of air to the carrier to promote evaporation of the insect repellent material. The shaft fixedly supports the blades oblique to a plane perpendicular to the shaft, thereby creating another flow of air to promote evaporation of the carrier.

In another embodiment of the pest control method according to the present invention, the pest control apparatus has a vertical member having first and second ends. The vertical member is fixed at a first end. A horizontal member is connected to the second end of the vertical member so that it can rotate about the second end of the vertical member. The horizontal member also has first and second arms extending in both directions from a second end of the vertical member. Career
An insect repellent material supported on the first arm of the horizontal member and capable of evaporating upon contact with air is included. On the other hand, a counterweight is supported on the second arm of the horizontal member and is balanced with the carrier. The apparatus further comprises means for rotating the horizontal member about the second end of the vertical member to create a flow of air to the carrier. The means for rotating the horizontal member includes a motor provided on the carrier and a propeller drivingly connected to the motor. The counterweight has a battery that supplies electricity to the motor, and an electric circuit that connects between the motor and the battery.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, production examples of the present compound are described.
You. Production Example 4-methoxymethyl-2,3,5,6-tetrafluoro
1.0 g of benzyl alcohol, 0.42 g of pyridine and
And a mixed solution of 10 ml of tetrahydrofuran under ice-cooling.
3- (2-methyl-1-propenyl) -2,2-dimethyl
Lecyclopropanecarboxylic acid chloride ｛stereoisomeric ratio
Rate (1R) -trans form: (1R) -cis form: (1S)
-Trans form: (1S) -cis form = 93.9: 2.5:
3.5: After adding 0.1｝ 0.90 g, the temperature was raised to room temperature
Then, stirring was performed at the same temperature for 8 hours. The reaction solution was added to ice water
and extracted twice with 80 ml of ethyl acetate.
The combined ethyl acetate layer was washed with saturated saline,
After drying over sodium sulfate and concentrated under reduced pressure, the residue
To silica gel column chromatography (developing solvent:
Hexane / ethyl acetate = 50/1),
Methyl-2,3,5,6-tetrafluorobenzyl 3
-(2-methyl-1-propenyl) -2,2-dimethyl
1.40 g of cyclopropanecarboxylate (yield 84
%). ¹ H-NMR (CDCl_Three, TMS internal standard) δ value (pp
m): 1.13 (s, 3H), 1.26 (s, 3H), 1.3
8 (d, 1H), 1.69 (brs, 6H), 2.10
(Dd, 1H), 3.40 (s, 3H), 4.59
(S, 2H), 4.87 (d, 1H), 5.24 (d
d, 2H)

The present compounds exist in optical isomers based on the presence of an asymmetric carbon, regardless of whether they have the R configuration or the S configuration, as long as they have biological activity.
These optical isomers and mixtures in any proportions thereof are encompassed within the scope of the present compounds. In addition, there are geometric isomers based on the presence of the cyclopropane ring, regardless of whether they are in the trans form or the cis form, as long as they have biological activity, these geometric isomers and any ratios thereof Are included within the scope of this compound.

The insect repellent used in the method of the present invention may be prepared, for example, by dissolving the present compound in an organic solvent as necessary.
It can be obtained by impregnating or coating a carrier, or kneading a molten carrier followed by molding.

The carrier used in the method of the present invention can hold the present compound and can volatilize the present compound appropriately by a relative air flow generated on the surface thereof. Examples of such a carrier include a solid carrier, a gelled material obtained by impregnating the carrier with water, and a carrier that can be melted for kneading the present compound.

Specific examples of the carrier include paper, nonwoven fabric, cloth,
Examples include sponge, resin film, polyurethane, sponge, dispersible silica, organic montmorillonite, sodium stearate, and carrageenan. From the viewpoint of high volatilization efficiency and ease of preparation, it is preferable to use a sheet-like carrier made of paper, nonwoven fabric, cloth, sponge or resin film. In addition, the sheet-shaped carrier, if necessary, may be appropriately folded, a part thereof may be bonded or processed into a honeycomb shape, or the surface thereof may be provided with irregularities, so that the surface area with respect to the volume of the carrier is obtained. Can be enlarged.

The amount of the present compound retained on the carrier of the insect repellent material may vary depending on its use, use scene, use period and the like, but is generally about 0.01 to 100 g, preferably 0.1 to 100 g. Degree, more preferably 0.1 to 10 g
It is about.

By generating a relative air flow on the surface of the insect repellent material, the present compound held on the carrier of the insect repellent material is volatilized in the air, and thus the compound thus volatilized exhibits an effect of controlling insect pests. Is done.

Here, the term "relative air flow" refers to the air flow generated by the relative movement between the insect repellent and the air. More specifically, when the insect repellent material is fixed, the air may be blown using a blowing means to generate a relative air flow on the surface of the insect repellent material. Alternatively, the relative movement of air may be created by moving the insect repellent itself in the air,
These methods may be combined.

As the blowing means, typically, a means utilizing a blowing device such as a small electric fan is used.

As a method of moving the insect repellent itself, for example, a windmill or propeller-like insect repellent holding the compound is rotated, a mobile holding the compound is swirled, or the compound is held. Or a method of rotating the formed slit-shaped rotating body.

In the method of the present invention, the relative velocity of the air flow on the surface of the insect repellent material is determined so that the compound retained on the carrier of the insect repellent material volatilizes in such an amount that a sufficient insect-controlling effect can be exhibited. Speed which is usually sufficient for
It is about 1 to 10 m / sec.

The insect repellent is arranged so that the wind passes through it, for example, so that the surface of the insect repellent is parallel to the direction of air blowing by the air blowing means. In carrying out the method of the present invention, an insect repellent material is disposed, for example, inside a tubular body having both ends opened, and the insect repellent material is provided at one opening of the tubular body. The air can be blown using the installed blowing means. Examples of such a cylindrical body include a cylindrical body having a circular cross section, or a polygonal shape such as a triangle, a square, and a hexagon. Examples of the material include a resin and cardboard. Can be. Specific examples of such resins include polyethylene; polypropylene; ethylene-vinyl acetate copolymer, ethylene-methyl (meth) acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-vinyl acetate-methyl (meth) acrylate Copolymers such as copolymers of ethylene and a monomer having a polar group; and synthetic resins such as chlorine-containing synthetic resins such as polyvinyl chloride and polyvinylidene chloride. Further, the cylindrical body may be provided with an inner surface projection, a slit, a gripping means, and a holding means for arranging and fixing the insect repellent material. Further, the portion where the insect repellent material is provided in the cylindrical body may be configured as a detachable cassette. Further, the tubular body may be divided into upper and lower parts so that the upper part can be opened and closed in order to facilitate the arrangement of the insect repellent material.

In the method of the present invention, in order to obtain a stable and long-lasting excellent pest control effect, the following formula is used: a × b / c wherein a is the surface area of the carrier (m ² ), and b is the insect repellent material. Relative velocity of air flow (m / sec) at the surface of the surface of the substrate, c represents the amount (g) of the compound retained on the carrier].
It is preferably set to be in the range of 01 to 10, and more preferably to be set in the range of 0.01 to 1.

Examples of pests that can be controlled by the method of the present invention include various pests and mite such as arthropods, for example, sanitary pests such as flies, mosquitoes, cockroaches, wood pests, and food pests.

[0027]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the present invention is limited thereto.

Test Example 1 0.5 cm × 69 c having a surface area of 0.0138 m ²
An mx 0.5 cm piece of honeycomb structured paper was rolled from one end to produce a spiral material 5.5 cm in diameter and 0.5 cm in width. Acetone solution of 150 mg of 2,3,5,6-tetrafluoro-4-methoxymethylbenzyl 3- (2-methyl-1-propenyl) -2,2-dimethylcyclopropanecarboxylate was uniformly applied to the material. Thereafter, acetone was air-dried to prepare a test insect repellent material 1 (having a surface area of 0.0138 m ² ) shown in FIGS. 1 and 2. The thus-prepared insect repellent is vertically blown by the wind sent from the lower electric fan onto an upper part of a metal cylinder having an inner diameter of 6.5 cm and a length of 8 cm on which an electric fan is installed below. And a test device. The insecticidal test was performed as follows. First, the diameter 4
A Culex mosquito (Culex) in a glass tube 12 cm high and 12 cm high
(pipiens pallens) were released, and two glass tubes with both ends closed by a nylon net were prepared. These glass tubes were placed in a plastic cylindrical cover having a diameter of 18 cm and a height of 30 cm.
A metal cylinder having a height of 0 cm and a height of 80 cm was installed. The test device was installed at the bottom of the metal cylinder, and the fan of the device was driven for 10 minutes to blow air at 1.5 m / sec. Five minutes later, the number of mosquitoes that had knocked down was counted, and the knockdown rate was calculated. Table 1 shows the results.

[0029]

[Table 1] The present compound shows an excellent pest control effect in the method of the present invention.

Next, an example of a specific embodiment of the pest control apparatus used in the present invention will be described below with reference to the drawings. FIG. 3 shows a pest control apparatus 1, which is designated by the reference numeral 20 as a whole. The pest control device 20 has a cylindrical vertical housing 21. The housing 21 is opened at its upper end opening 22 and its bottom is closed by a partition wall 23 fixed to the housing 21. The partition wall 23 supports a drive mechanism 24 indicated by reference numeral 24. The drive mechanism 24 has a case 25 fixed to the partition wall 23. This case 25 is a vertical shaft 2
6 is rotatably supported about a longitudinal axis 27 of the shaft 26. The case 25 houses a motor 28 that is drivingly connected to a vertical shaft 26.
When the motor 28 is driven, the vertical shaft 26 rotates about the longitudinal axis 27. Motor 2
8 is preferably connected to the shaft 26 via a suitable speed reduction mechanism (for example, a known pulley and belt mechanism or a gear mechanism). The motor 28 is electrically connected to a power supply such as a battery 29. In this embodiment, the battery 29 is detachably provided below the partition wall 23, but the battery 29 may be provided above the partition wall 23. In any case, battery 29 should be positioned so that it can be easily replaced with a new battery. The motor 28 and the battery 29 should be connected via a manual switch 30 suitably provided in the vertical housing 21 so that the battery 29 supplies a predetermined voltage to the motor 28 when the switch 30 is turned on. .
Note that a commercial power supply can be used instead of the battery 29.

The vertical shaft 26 includes a plurality of blades 32.
(Ie, a propeller). Blade 32
Extend from the upper part of the vertical shaft 26 radially outward at an equal angle. In the present embodiment, four blades 32 are provided, but the present invention is not limited thereto. Each blade 32 is inclined with respect to an imaginary plane perpendicular to the vertical shaft 26 extending in the vertical direction (Z direction) (that is, the XY plane in FIG. 3). Therefore, when the vertical shaft 26 and the blade 32 rotate in a direction indicated by reference numeral 33, the blade 32 forms an air flow indicated by an arrow 34 toward the upper opening 22 of the housing 21. The housing 21 has a plurality of notches (that is, the air introduction section 3).
5) should be formed so that sufficient air is sucked into the inside of the housing 21 from the outside. Air inlet 35
Is preferably formed below the blade 32. Another air introduction part may be formed in the partition wall 23. In this case, an additional air inlet should be formed in the part of the housing 21 located below the partition 23.

A support member indicated generally by reference numeral 36 is provided in the upper opening 22 of the housing 21. This carrying member 36
Has a bearing cylindrical portion 37 extending in the vertical direction. The bearing cylindrical portion 37 is fixedly supported at the center of the opening 22 in the housing 21 by using a plurality of bridges 38 extending between the inner surface of the housing 21 and the outer surface of the bearing cylinder 37. Although the four bridges are provided at equal angles, the number is not limited as long as the bearing cylinder 37 is stably supported.

The bearing cylinder 37 supports an insect repellent carrier (carrier) indicated by a reference numeral 39. Career 39
Is entirely or partially formed of a supporting material including the above-described insect repellent material. The carrier 39 has a shaft 40.
The shaft 40 is sized to have an outer diameter slightly smaller than the inner diameter of the bearing cylinder 37 so that the carrier 39 can be easily removed from the bearing cylinder 37 and the shaft 40
It can rotate freely in the room. Shaft 4
The inner surface of the bearing cylinder 37 is made of a low friction material (e.g., to minimize the frictional force generated between the opposed surfaces of the shaft 40 and the bearing cylinder 37) so that the bearing cylinder 0 can rotate smoothly. , Polytetrafluoroethylene).

The shaft 40 supports a plurality of blades 41 (ie, propellers) that extend radially outward from the upper portion of the shaft 40 at equal angles. Four blades 4
Although 1 is provided on the shaft 40, the present invention is not limited thereto. Each blade 41 in FIG.
It is inclined with respect to a horizontal plane perpendicular to the vertical axis 40 (that is, the XY plane). Therefore, when the blades 41 receive the flow of air 34, they apply a rotational force to the carrier 39 in the direction indicated by reference numeral 42. Also, the carrier 39 is in dynamic contact with the air, which helps the insect repellent to evaporate and diffuse into the air.

For security, the carrier 39 is preferably protected by a breathable net or mesh 43. The mesh 43 is formed in a dome shape.
It is preferable to leave a predetermined space between the mesh 43 and the rotating blade 41 so as not to hinder the rotation of No. 9. More preferably, the dome-shaped mesh 43 is provided with a ring 44 made of an elastic metal or resin at the peripheral edge of the bottom so that it can be easily mounted on the upper part of the housing 21.
The mesh size of the mesh 43 must be determined so as not to prevent the evaporated insect repellent from diffusing into the air.

The operation will be described. When the switch 30 is turned on, the motor 28 is started to rotate the vertical shaft 26 and the blade 32 in the direction of reference numeral 33. As a result, an upward air flow 34 is formed in the housing 21. The formed air flow 34 contacts the surface of the blade 41 on the carrier 39 and urges the blade 41 to rotate the carrier 39 in the direction of reference numeral 42. The air flow 34 promotes evaporation of the insect repellent. In addition, the rotation of the carrier 39, especially the blade 41, generates an air flow 45 on the surface of the carrier 39, which promotes the evaporation of the insect repellent on the carrier.

The vaporized insect repellent is diffused into the air through the protective mesh 43 by the air flows 34 and 45. When all or most of the insect repellent in the carrier has evaporated, the mesh 43 is removed and a new carrier 39 is replaced with an old one.

FIGS. 4 and 5 show a pest control device 2 (symbol 50). Pest control device 50
Has a truncated conical housing 51. Housing 5
1 has a motor 52 fixed inside and a battery 53 detachably provided inside. The motor 52 and the battery 53 are
It is electrically connected via a manual switch 54 provided on the housing 51. When the switch 54 is turned on, a predetermined voltage is supplied from the battery 53 to the motor 52. As in the first embodiment, the housing 51 should be designed and configured so that the battery 53 can be easily attached and detached. A commercial power supply can be used instead of the battery 53.

As best shown in FIG.
1 has a vertical shaft 55. The vertical shaft 55
It extends along a vertical axis 56 and is rotatably supported about the vertical axis 56. The vertical shaft 55 is drivingly connected to the motor 52, and when the motor 52 is activated, the vertical shaft 55 rotates around a vertical axis 56 in a direction indicated by an arrow 57. As described in the above embodiment, a suitable speed reduction mechanism such as a pulley and a belt is connected to the motor 5.
2 and the vertical shaft 55.

The vertical shaft 55 fixedly holds a centrifugal fan indicated by reference numeral 58. As best shown in FIG. 5, centrifugal fan 58 has an upper circular plate 59 and a bottom ring plate 60 spaced a predetermined distance from upper circular plate 59. The upper circular plate 59 and the ring plate 60 preferably have substantially the same outer diameter. A plurality of fins 61 are provided between the upper circular plate 59 and the bottom ring plate 60. These fins 61 fixedly connect the upper plate 59 and the bottom plate 60. Each fin 61 is oriented obliquely to the radial direction of the circular plate 59, and when the centrifugal fan 58 rotates about the axis extending vertically in the center of the circular plate 59, the inside surrounded by the fin 61 is rotated. The air in the space 62 is sucked and blown radially outward. The blown air is indicated by an arrow 63 in FIG. The upper circular plate 59 has a through hole 64 formed at the center of the plate. The through-hole 64 has a vertical axis 55
, So that the fan 58 can rotate based on the rotation of the vertical shaft 55. The vertical shaft 55 protrudes from the upper circular plate 59 by a predetermined length.

The device 50 further has a carrier indicated by reference numeral 65. The carrier 65 is entirely or partially formed of a carrier material including the above-described insect repellent material, and has a circular plate 66.
And a cylindrical vertical wall 67 (that is, a skirt portion) extending downward from the peripheral edge of the circular plate 66. The circular plate 66 and the vertical wall 67 are sized to have an inner diameter larger than the outer diameter of the centrifugal fan 58 so that the carrier 65 surrounds and covers the centrifugal fan 58 in the operating state shown in FIG. The vertical wall 67 has a plurality of openings 68. Each opening 68 is rectangular, but may have other shapes. The upper circular plate 66 has a cylindrical bearing 69 at the center of the bottom surface. The cylindrical bearing 69 is provided on the vertical shaft 55.
Has an inner diameter slightly larger than the outer diameter of the upper protrusion.
As a result, the vertical shaft 55 receives the cylindrical bearing 69 of the carrier 65 so that the carrier 65 can rotate around the vertical shaft 55. Also, the vertical shaft 5
5 rotates, the frictional force generated between the opposed surfaces of the vertical shaft 55 and the cylindrical bearing portion 69 causes the carrier 65 to rotate.
Rotate about the vertical shaft 55 in the same direction.

The operation will be described. When the switch 54 is turned on, the motor 52 is started by the voltage supplied from the battery 53, and rotates the vertical shaft 55 in the direction of the arrow 57. As a result, a frictional force is generated at the contact portion between the vertical shaft 55 and the cylindrical bearing portion 69, and the carrier 65 rotates in the same direction. As the carrier 65 rotates, the surface of the carrier is in dynamic contact with air. That is, the air flow 70 is
It is formed on the surface of the carrier 65. This air flow 70 promotes the evaporation of the insect repellent and diffuses it into the air. The rotation of the vertical shaft 55 is also transmitted to the fan 58. When the fan 58 rotates in the direction of the arrow 57, it sucks air from the space 62 and blows the air obliquely outward toward the vertical wall 67 of the carrier. This promotes evaporation of the insect repellent. The insect repellent thus evaporated then diffuses into the air.

FIG. 6 shows a pest control apparatus 3 indicated by a reference numeral 80. The device 80 has a base housing 81 in the shape of a rectangular box. Housing 81
Has a motor 82 fixed inside and a battery 83 detachably provided inside. The motor 82 and the battery 83
It is electrically connected via a manual switch 84 provided on the housing 81. When the switch 84 is turned on,
A predetermined voltage is supplied from the battery 83 to the motor 82. As with the pest control device 1, the housing 81
Should be designed and configured such that the battery 83 can be easily attached and detached. Further, a commercial power supply may be used instead of the battery.

The housing 81 holds a vertical shaft 85. The vertical shaft 85 extends along a vertical axis 86 and is rotatable about the vertical axis 86.
The vertical shaft 85 is drivingly connected to a motor 82,
When the motor 82 is driven, the vertical shaft 85 rotates about the vertical axis 86 in the direction indicated by the arrow 87. As described in the above embodiment, a suitable speed reduction mechanism such as a pulley and a belt may be provided between the motor 82 and the vertical shaft 85.

The vertical shaft 85 is connected to the vertical shaft 8.
It supports a plurality of arms 88 extending at an equal angle from 5 radially outward. In this embodiment, four arms 88 are provided, but the present invention is not limited thereto. Each arm 88 supports a cylindrical body 89. This cylindrical body 89 has openings 91 and 92 at both ends, and its longitudinal axis 90 is oriented horizontally. Carrier 9
Numeral 3 is entirely or partially formed of the above-described insect repellent material, and is disposed in each cylindrical body 89.

The carrier 93 includes one or more carrier members (see FIG. 7) containing an insect repellent material. The support member includes the above-described insect repellent material and is indicated by an arrow 94, and includes a plurality of cylindrical members 95 having different diameters and arranged concentrically about a shaft 96. Each cylindrical member 95 is fixedly connected to adjacent cylindrical members by a connecting member 97 extending in a zigzag manner therebetween, whereby a large number of openings 98 are provided between the cylindrical member 95 and the connecting member 97. Are formed. The carrier 93 connects the shaft 96 with the openings 91 and 92.
Are inserted into the cylindrical body 89 so as to be detachable, and when the cylindrical body 89 rotates in the direction indicated by the arrow 87, the carrier 9
3 at the opening 98 a dynamic air contact occurs on the surfaces of the members 95 and 97; That is, an air flow is formed on the surfaces of the members 95 and 97.

Although the support member 94 is formed of a plurality of cylindrical members having different sizes, the support member 94 may be formed of a spiral member and a connecting member extending in a zigzag manner between adjacent portions of the spiral member. Alternatively, the support member may have a honeycomb structure.

The vertical shaft 85 supports a plurality of blades 99 (ie, propellers). The blades extend from the vertical shaft 85 radially outward at an equal angle. In the present embodiment, three blades 99 are provided, but the present invention is not limited thereto. Each blade 99
Is inclined with respect to the horizontal plane of FIG. 6 (i.e., the XY plane) so that when the vertical shaft rotates in the direction of arrow 87, an air flow 101 is formed toward the cylinder 89. .

The operation will be described. When the switch 84 is turned on, the motor 82 is started by the voltage supplied from the battery 83 to rotate the vertical shaft 85 and the cylindrical body 89 in the direction of the arrow 87. As a result, the insect-carrying material supporting member 9 in the cylindrical body 89 is formed.
4 make dynamic contact with air. Specifically, FIG.
An air flow, indicated by zero, is formed against the surfaces of members 95 and 97. This air flow 100 promotes the evaporation of the insect repellent. Then, the evaporated insect repellent material diffuses into the air. Also, the blade 99 rotates with the vertical shaft 85 to form another air flow 101, which promotes the diffusion of the evaporated insect repellent into the air.

Although the blade 99 is provided in this embodiment, it may be removed from the device 80. Also in this case, the insect repellent is effectively evaporated by the air flow 100 on the surfaces of the members 95 and 97.

FIG. 8 shows a pest control device 4 (indicated by reference numeral 110). The device 110 has a vertical shaft 111 having an upper end 112 and a lower end 113. The upper end 112 is connected to an appropriate fixed part such as a ceiling. On the other hand, the lower end portion 113 has a connecting member 114, which is connected rotatably about a longitudinal axis 115 of the vertical shaft 111. Connecting member 114
Holds a horizontal shaft 116 that extends in both directions. One end of the horizontal shaft 116 detachably supports a carrier indicated by reference numeral 117. The carrier 117 has, for example, an appearance resembling an airplane, and is entirely or partially formed of a carrier material including the above-described insect repellent material. Carrier 11
7 has a motor 118 provided inside. Motor 11
Eight output shafts 119 support a plurality of propellers 120. The other end of the horizontal shaft 116 is a counterweight
(That is, a battery holder 121), and a battery 122 is detachably provided in the battery holder 121.
Battery 122 is electrically connected to motor 118 via an electrical circuit located on horizontal shaft 116. This electric circuit includes a manual switch 123 provided on the battery holder 121.

The operation will be described. When the switch 123 is turned on, a predetermined voltage is supplied from the battery 122 to the motor 118 via the power supply line, and the motor 118 is started to rotate the output shaft 119 and the propeller 120. The rotation of the propeller 120 generates a propulsive force, which causes the carrier 117 to rotate together with the battery holder 121 in the direction indicated by the arrow 124. As a result, the carrier 117 is in dynamic contact with the air, ie, a flow of air is formed on the surface of the carrier 117, which promotes the evaporation of the insect repellent. The evaporated insect repellent material is diffused by the air turbuled by the carrier 117 and the battery holder 121.

From the above, it can be understood that the object of the present invention is achieved and other advantages are obtained.

Since various modifications can be made to the above-described configuration without departing from the scope of the present invention, all the matters described above or shown in the accompanying drawings are for explanation and restrictive purposes. It should be understood that it is not meaningful.

[0055]

According to the method of the present invention, the insect repellent material evaporates effectively and is diffused by the flow of air formed by the movement of the carrier, so that an excellent pest control effect can be obtained without using a heat source. .

[Brief description of the drawings]

FIG. 1 is a top view of an insect repellent used in an insecticidal test of Test Example 1.

FIG. 2 is a perspective view of the insect-controlling material shown in FIG.

FIG. 3 is an exploded perspective view of a pest control device 1 which is one embodiment of the pest control device.

FIG. 4 is a perspective view of a pest control device 2 which is one embodiment of the pest control device.

FIG. 5 is an exploded perspective view of a centrifugal fan and a carrier of the pest control apparatus shown in FIG.

FIG. 6 is a perspective view of a pest control device 3 which is one embodiment of the pest control device.

FIG. 7 is a perspective view of an insect-controlling material carrier incorporated in the pest control apparatus shown in FIG. 6;

FIG. 8 is a perspective view of a pest control device 4 which is one embodiment of the pest control device.

[Explanation of symbols]

20 ... pest control device, 26 ... vertical shaft, 28 ... motor, 29 ... battery, 32 ... blade, 34 ... air flow,
37 ... bearing cylindrical part, 39 ... carrier, 40 ... shaft,
41: blade, 43: mesh.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A01N 25/34 A01N 25/34 Z 53/00 506Z

Claims (7)

[Claims] 1. A carrier comprising 2,3,5,6-tetrafluoro-4-methoxymethylbenzyl 3- (2-methyl-1-propenyl) -2,2-dimethylcyclopropanecarboxylate as an active ingredient. A method for controlling insect pests, characterized in that a relative air flow is generated on the surface of an insect repellent material, and the active ingredient is volatilized in the air. 2. The pest control method according to claim 1, wherein a relative air flow is generated by blowing air to the insect repellent material using a blowing means. 3. Moving the insect repellent material in the air,
The method of controlling pests according to claim 1, wherein a relative air flow is generated. 4. An insect repellent is blown using a blowing means, and
The pest control method according to claim 1, wherein a relative air flow is generated by moving the insect-controlling material in the air. 5. The pest control according to claim 2, wherein the insect repellent material is disposed inside the tubular body having both ends opened, and the blower is provided at one opening of the tubular body. Method. 6. formula: a × b / c [wherein, a is the surface area of the support (m ^2), b is the relative air flow in the surface of the protectant Speed (m / s), c is the carrier Represents the amount (g) of the active ingredient held in
The pest control method according to any one of claims 1 to 5, which is within a range of 01 to 10. 7. The method for controlling pests according to claim 1, wherein the carrier is paper, non-woven fabric, cloth or resin film.