JP5084009B2 - Plant pest control method - Google Patents

Description

  The present invention relates to a plant pest control method for controlling plants such as agricultural crops, flower trees and fruit trees from pests such as pests that feed on plants and pests parasitic on plants.

As a method for controlling pests of plants such as agricultural crops, as disclosed in Patent Document 1, it is common to spray a pest control agent on plants from the nozzle of a power sprayer.
Further, Patent Document 2 discloses an aerosol container in which a container such as a can is filled with contents (medicine, solvent, etc.) together with a propellant and ejected (sprayed) by the pressure of the propellant.
Further, in Patent Document 3, a drug carrier carrying a pest control component and a blower are provided in a container, and air containing the pest control component is brought into contact with the drug carrier by driving the blower. A blower-type pest control device that diffuses into the air is disclosed.

Japanese Utility Model Publication No. 58-73367 JP-A-8-196954 Japanese Patent Laid-Open No. 11-169051

Since the method of spraying a pest control agent on a plant with a power sprayer as described in Patent Document 1 sprays the pest control agent on the whole plant, the pest control agent is scattered around the plant. You must work very carefully, taking into account the impact on the surrounding environment.
In addition, since a large-scale power sprayer is used, it is difficult to handle, and the cost is high, which is not preferable as a pest control method performed by a general person in a home garden.

From the above, it is conceivable to use the aerosol container disclosed in Patent Document 2 to eject the contents toward the pests adhering to the plant to control the pests.
Since this aerosol container is simple and can be used everywhere, the pest control method using the aerosol container has a preferable aspect as a pest control method performed by a general person in a home garden or the like.
However, the aerosol container ejects the contents as fine particles at high speed, so if it is ejected from the vicinity of a pest adhering to the plant, the pest is blown away by the contents, so it is separated from the pest adhering to the plant. Since the contents are ejected from the position toward the pests so that the pests are not blown away by the contents, only a part of the ejected contents are blown to the pests, and most of the rest is scattered around , Pest control efficiency is poor.
In addition, since most of the contents ejected as fine particles are scattered around as described above, it is necessary to work carefully in consideration of the influence on the surrounding environment such as the human body.

In the above-mentioned air blow-type pest control device disclosed in Patent Document 3, the particles of the pest control component contained in the air released into the air are finer than the particles of the contents ejected from the aerosol container. It is. That is, the pest control component is diffused into the air as fine particles.
For this reason, since the pest control component diffused in the air by the blower-type pest control device floats and dilutes in the air (in the atmosphere), there is little influence on the surrounding environment such as the human body.
Therefore, it is preferable to carry out plant pest control using this blower-type pest control device, because the work can be performed without considering the influence on the surrounding environment such as the human body.

  However, since the above-mentioned blast-type pest control device is a fine particle of the pest control component released in the air, it is difficult to adhere to the pest and, as described above, it is lost due to floating and dilution in the air. In addition, the amount of the pest control component released into the air is very small (especially when the blower is driven by a battery as the power source, the amount of the pest control component released into the air is more due to its effective usage time. Therefore, if this blower-type pest control device is used for a pest control method that blows and controls pests adhering to a plant, the pest control efficiency is poor and a sufficient pest control effect is obtained. I can't.

  The present invention has been made in view of the foregoing, and an object of the present invention is to provide a method for controlling pests in plants, which uses a blower-type pest control apparatus, has good pest control efficiency, and provides a sufficient pest control effect. Is to provide.

1st invention provides the air blower 11 and the chemical | medical agent support body 12 in the apparatus main body 10, and the air containing the pest control component which the chemical | medical agent support body 12 carry | supported by driving the air blower 11 in the air from the discharge port 13 A method in which an operator has a blow-type pest control apparatus 1 to be released and an air receiving member 2 having a recess 2a by hand, and controls a part of a plant.
An operator holds the blower-type pest control apparatus 1 and the air receiving member 2 by hand, and the blower-type pest control apparatus 1 is disposed on one side of the pest control part 3a which is a part of the plant 3, and the discharge port 13 is the pest control. Provided toward the portion 3a, the air receiving member 2 is provided on the other side of the pest control portion 3a, the concave portion 2a is provided toward the pest control portion 3a and the discharge port 13, and in this state, the blower type pest control device 1, air containing a pest control component is blown to the pest control portion 3a, the air blown to the pest control portion 3a is retained in the recess 2a of the air receiving member 2, and the blow type pest control device a pest control method of the plant, characterized in that the control of pests of the periphery of the pest control portion 3a by blowing air containing from 1 to pest control component by enclosing air containing the insect controlling component.

  As a pest control apparatus used for this plant pest control method, a gripping portion 17 is provided in the apparatus main body 10 of the blower-type pest control apparatus 1, and the air receiving member 2 can be moved in the air blowing direction to the apparatus main body 10. And it is preferable that it is attached so that its orientation can be changed.

  If this pest control apparatus is used, one worker can work by holding the gripping part 17 with one hand, and the distance between the apparatus main body 10 and the air receiving member 2 can be adjusted, and the direction of the air receiving member 2 can be adjusted. Can control the pests of plants of different sizes.

  Further, a nozzle 18 is attached to the apparatus main body 10 of the blower-type pest control apparatus 1 of the above-described pest control apparatus so as to communicate with the discharge port 13, and air containing a pest control component released from the discharge port 13 is supplied by the nozzle 18. It is preferable to be able to spray intensively.

  If it does in this way, it will adhere to the plant 3, and since the said air can be sprayed intensively toward a pest etc., the effect of pest control will become more excellent.

In the second invention, a blower 11 and a drug carrier 12 are provided in the apparatus main body 10, and air containing a pest control component carried by the drug carrier 12 is driven into the air from the discharge port 13 by driving the blower 11. A method for controlling a plant by using a blower-type pest control apparatus 1 to be released,
The nozzle 18 and the air receiving member 2 provided in the blower-type pest control apparatus 1 surround the pest control portion 3a of the plant 3 and air containing a pest control component released from the blower-type pest control apparatus 1 in that state. Is sprayed on the pest control part 3a as an arc-shaped flow by the nozzle 18, and the air flows along the recess 2a of the air receiving member 2 and circulates to the nozzle 18, thereby causing the pest control part of the plant 3 to flow. It is a plant pest control method characterized by controlling pests by retaining the air as a swirling flow around 3a.

  As a pest control apparatus used for this pest control method, a gripping portion 17 is provided in the apparatus main body 10 of the blower-type pest control apparatus 1, and a nozzle 18 communicating with the discharge port 13 is attached to the apparatus main body 10. The air receiving member 2 is rotatably attached to the tip of the nozzle 18 so as to approach and separate from the nozzle 18, the outer peripheral side plate 18 a of the nozzle 18 has an arc shape, and the bottom surface of the recess 2 a of the air receiving member 2 has an arc shape. These are preferred.

If this pest control apparatus is used, one worker can work with the gripping part 17 with one hand.
If the air receiving member 2 is rotated to a position separated from the nozzle 18, the operation of positioning the nozzle 18 and the air receiving member 2 on both sides of the pest control portion 3 a of the plant 3 is easy.
And the circumference | surroundings of the pest control part 3a of the plant 3 can be enclosed by rotating the air receiving member 2 to the position close to the nozzle 18. FIG.

According to a third aspect of the present invention, a blower 11 and a drug carrier 12 are provided in the apparatus body 10, and air containing a pest control component carried by the drug carrier 12 is driven into the air from the discharge port 13 by driving the blower 11. An operator has a blower-type pest control apparatus 1 to be released by hand, and controls a part of a plant by pest control,
The apparatus body 10 includes a substantially C-shaped outer peripheral side plate 18a, an inner peripheral side plate 18b, and a pair of end face plates 18c, and an inlet 18d, an outlet 18e, and a bottom surface 18- As the air containing the pest control component flowing into the inlet 18d from the discharge port 13 flows through the nozzle 18 having a shape 1 along the outer peripheral side plate 18a, a swirl flow is formed in the space 18-1. Provided to stay ,
An operator holds the blower-type pest control apparatus 1 by hand and brings the outlet 18e of the nozzle 18 close to the pest control part 3a which is a part of the plant 3 so that the air touches the pest control part 3a. A pest control method for plants characterized by controlling pests.

In the fourth aspect of the invention , the blower 11 and the drug carrier 12 are provided in the apparatus main body 10, and the air containing the pest control component carried by the drug carrier 12 is driven into the air from the discharge port 13 by driving the blower 11. An operator has a blower-type pest control apparatus 1 to be released by hand, and controls a part of a plant by pest control,
The apparatus main body 10 has a one-side nozzle 18-2 and an other-side nozzle 18-3 that can be freely opened and closed, and a nozzle that forms a space by closing the one-side nozzle 18-2 and the other-side nozzle 18-3. 18 is provided so that air containing a pest control component from the discharge port 13 is blown into the space portion,
The operator holds the blow type pest control apparatus 1 by hand, and the one side nozzle 18-2 and the other side nozzle 18-3 are opened around the pest control part 3a which is a part of the plant 3. In this state, by closing the one-side nozzle 18-2 and the other-side nozzle 28-3, the substantially entire circumference of the pest control portion 3a is surrounded by the space portion of the nozzle 18,
The plant pest control method is characterized by controlling pests by blowing air containing a pest control component from the blower-type pest control apparatus 1 into the space of the nozzle 18 .

According to 1st, 2nd, 3rd, 4th invention, the air containing the pest control component discharge | released from the ventilation type pest control apparatus 1 can contact the pest control part 3a of the plant 3 for a long time. Is possible.
Therefore, the pest control efficiency is good using the blower-type pest control apparatus, and a sufficient pest control effect is obtained.

A first embodiment of the present invention will be described.
In this embodiment, the air containing the pest control component blown to the pest control part of the plant is retained near the pest control part so that the periphery of the pest control part of the plant is surrounded by the air described above. This is a pest control method.
Specifically, as shown in FIG. 1, the operator has the blower-type pest control apparatus 1 with one hand and the air receiving member 2 with the other hand, and the blower-type pest control apparatus 1 and the air receiving member. 2 is opposed to both sides of the pest control part 3a of the plant 3. That is, the blower-type pest control apparatus 1 and the air receiving member 2 serve as a pest control apparatus.
The pest control part 3a is a part to which an adult pest 4 is attached, a part to which a pest 4 larva or egg is attached, and the like.

The blower-type pest control apparatus 1 is provided with a blower 11 and a drug carrier 12 carrying a pest control component on the apparatus main body 10, and air is brought into contact with the drug carrier 12 by driving the blower 11. The air containing the pest control component is released into the air.
The air receiving member 2 has a recess 2a. Although this recessed part 2a is hemispherical shape, this recessed part 2a should just be a shape in which air stays in the inside, and is not limited to hemispherical shape.

In the above-described state, air containing a pest control component (hereinafter simply referred to as air) is blown from the blower-type pest control apparatus 1 toward the above-described pest control portion 3a as indicated by an arrow a.
The air passes through the pest control part 3a of the plant 3 and enters the recess 2a of the air receiving member 2, and rebounds in the recess 2a and collides with the entering air. By repeating this, the air is received by the air. It stays in the recess 2 a of the member 2.
If this continues for a predetermined time or more, the air blown from the blower-type pest control apparatus 1 as shown by the arrow a and the air staying in the recess 2a of the air receiving member 2 collide, and the plant 3 The pest control portion 3a is surrounded by air containing a pest control component.

  Therefore, since the air containing a pest control component continues to contact the pest 4 for a long time, the pest control efficiency is good and a sufficient pest control effect is obtained.

Moreover, since the ventilation type pest control apparatus 1 and the air receiving member 2 are separate members and can be set in any direction, both can be confronted with each other according to the shape, size, etc. of the plant.
For example, as shown in FIG. 2, when the plant 3 is thick, the blower-type pest control device 1 and the air receiving member 2 can be disposed facing each other along the surface of the plant 3.
The blower-type pest control apparatus 1 and the air receiving member 2 may be operated by different workers.

Next, a specific shape of the blower-type pest control apparatus 1 will be described.
As shown in FIGS. 3 and 4, the apparatus main body 10 has a blower housing chamber 10 a and a medicine housing chamber 10 b, the blower housing chamber 10 a opens to the outside through the discharge port 13, and the medicine housing chamber through the communication port 14. 10b.
The cover 15 forming the medicine storage chamber 10 b is detachable and has a suction port 16.
The blower 11 rotates a fan 11b with a motor 11a.
A drug carrier 12 is stored in the drug storage chamber 10b.
A gripping portion 17 such as a round bar is attached to the apparatus main body 10.
A nozzle 18 is provided in the apparatus main body 10 so as to communicate with the discharge port 13, and the air discharged from the discharge port 13 flows into the nozzle 18, concentrates at the nozzle 18, and blows toward the pest 4. It can be turned on.
A battery accommodating chamber 10c is formed in the apparatus main body 10, and a battery 19 is accommodated in the battery accommodating chamber 10c. The motor 11a is driven by using the battery 19 as a power source.

  The air receiving member 2 is provided with a gripping portion 2b, for example, a round bar, and can be operated with the gripping portion 2b. The grip portion 2b is not limited to a round bar. For example, the battery housing chamber 10c of the device main body 10 may be elongated and a part of the device main body 10 may be used as a grip portion.

  The nozzle 18 is tapered and has a shape in which air containing a pest control component is concentrated and blown to one place. However, the shape of the nozzle 18 is not limited to the above, and may be various shapes. it can. Further, air can be blown from the discharge port 13 without providing the nozzle 18.

In the above-described embodiment, the blower-type pest control apparatus 1 and the air receiving member 2 are separated, but the air receiver 2 may be integrated with the blower-type pest control apparatus 1. In this way, one worker can work with one hand.
For example, the air receiving member 2 is attached to the blower-type pest control apparatus 1 so that it can be moved in the air blowing direction and its direction can be changed.

Specifically, as shown in FIGS. 5 and 6, one end of the fixture 20 is movably attached to the apparatus main body 10. For example, a long hole 21 is formed in one end portion 20 a of the fixture 20, and a bolt, for example, a bolt 22 with a butterfly is screwed and attached to the apparatus main body 10 from the long hole 21.
The other end 20b of the fixture 20 is projected forward from the nozzle 18, and the air receiving member 2 is swingably attached to the other end 20b. For example, the bolt 23 fixed to the air receiving member 2 is inserted into a hole (not shown) formed in the other end 20 b of the fixture 20, and the wing nut 24 is screwed into the bolt 23.

If it does in this way, the air receiving member 2 will move to the direction which approaches the nozzle 18, and the direction which leaves | separates by moving the one end part 20a of the fixture 20 along the long hole 21 with respect to the bolt 22 with a butterfly. Then, the interval between the two is adjusted so as to match the size of the plant 3.
Moreover, the direction with respect to the nozzle 18 can be changed by rotating the air receiving member 2 around the bolt 23 by loosening the wing nut 24.
Therefore, pest control of plants with different sizes can be achieved.
Further, the attachment position of the attachment 20 may be attached to the upper surface or the lower surface in addition to the side surface of the apparatus main body 10.

Next, a second embodiment of the present invention will be described.
This embodiment is a pest control method in which air containing a pest control component released from the blower-type pest control apparatus 1 is retained as a swirling flow around the pest control portion 3a of the plant 3.
Specifically, as shown in FIG. 7, the air receiving member 2 and the nozzle 18 surround the pest control portion 3a of the plant 3, and the nozzle 18 is connected to the outer peripheral side plate 18a, the inner peripheral side plate 18b, and a pair of end faces. A plate 18c is provided, and an interval between the outer peripheral side plate 18a and the inner peripheral side plate 18b is gradually increased from the inlet 18d toward the outlet 18e, and the opening width of the outlet 18e is set to the plant 3 or the pest control part 3a. Larger than. The outer peripheral side plate 18a is curved in an arc shape, and the air containing the pest control component released from the blower-type pest control apparatus 1 is arcuately directed toward the pest control part 3a of the plant 3 along the outer peripheral side plate 18a. To be sprayed as a flow of.
And the air which bounced from the air receiving member 2 is made to flow into the part near the inner peripheral side plate 18b in the outflow port 18e of the nozzle 18. FIG.
In this case, it is preferable to provide an arc-shaped guide plate 18f near the inner peripheral side plate 18b of the outlet 18e of the nozzle 18 so that the air bounced from the air receiving member 2 flows smoothly.

In this way, the air flows along the nozzle 18 along the arc as indicated by the arrow b, and the air that rebounds upon hitting the recess 2a of the air receiving member 2 flows again as an arc due to the air flow indicated by the arrow b. Therefore, the air continues to flow as a swirl flow and stays in the space surrounded by the nozzle 18 and the air receiving member 2.
Therefore, as shown in FIG. 7, by enclosing the nozzle 18 and the air receiving member 2 on both sides of the pest control portion 3a of the plant 3 so as to face each other, a sufficient control effect can be obtained with good pest control efficiency.

In this case, the concave portion 2a of the air receiving member 2 may be spherical, but the bottom plate 2c is preferably arcuate and the pair of end surface plates 2d are preferably flat. That is, by making the bottom surface into an arc shape, the air that has flowed in flows along the bottom surface as described above, so that it tends to stay as a swirling flow.
Moreover, it is preferable to form a notch 2e in the pair of end face plates 2d so that the notch 2e can be provided close to the plant 3.

In this case, the air receiving member 2 can be provided integrally with the nozzle 18 so that one operator can work with one hand.
For example, the air receiving member 2 can be rotatably attached to the nozzle 18.
Specifically, as shown in FIG. 8, the air receiving member 2 is rotatably attached to the tip end portion of the outer peripheral side plate 18 a of the nozzle 18 by a hinge 25.
Then, the air receiving member 2 is rotated to a position away from the outlet 18e of the nozzle 18 as indicated by the phantom line in FIG. 8, and in this state, the air receiving member 2 and the nozzle 18 are disposed on both sides of the pest control portion 3a of the plant 3. Is disposed.
Thereafter, the air receiving member 2 is surrounded by the nozzle 18 and the air receiving member 2 around the pest control portion 3a of the plant 3 as a position close to the outlet 18e of the nozzle 18 as indicated by a solid line in FIG.

Next, a third embodiment of the present invention will be described.
In this embodiment, the air containing the pest control component released from the blower-type pest control apparatus 1 is retained as a swirling flow, and the region where the swirling flow is retained is This is a pest control method that is located in the pest control portion 3a.
For example, the nozzle 18 has a shape in which air containing a pest control component stays in a swirling flow, and the vicinity of the outlet 18 e of the nozzle 18 faces the pest control portion 3 a of the plant 3. Then, the air staying in the swirl flow is brought into contact with the pest control part 3a.

Specifically, as shown in FIG. 9, the nozzle 18 has a shape having a narrow inflow port 18d and a wide outflow port 18e by an outer peripheral side plate 18a, an inner peripheral side plate 18b, and a pair of end face plates 18c, and the outer peripheral side plate The air discharged from the blower-type pest control apparatus 1 with the nozzle 18 having a substantially C shape and the bottom surface having a substantially C-shaped space 18-1 flows along the outer peripheral side plate 18 a, so that the space 18- 1 so that it stays as a swirling flow.
Increasing the width of the outlet 18e of the nozzle 18 and confronting the pest control portion 3a of the plant 3 with the pest control component 3a contains a pest control component that stays as a swirling flow in the space 18-1. The air to be in contact with the pest control part 3a of the plant 3 is made to touch.
Further, a notch recess 18g is formed in the outlet 18e portion of the pair of end face plates 18c so that the space 18-1 can be brought close to the pest control portion 3a of the plant 3.

  In the apparatus shown in FIG. 9, since the distance between the apparatus main body 10 and the outlet 18e portion of the nozzle 18 is narrow, the above-mentioned distance is determined by making the outer peripheral side plate 18a and the inner peripheral side plate 18b closer to the apparatus main body 10 linear. May be widened.

Next, a fourth embodiment of the present invention will be described.
In this embodiment, a space part that surrounds almost the entire circumference of the pest control part 3a of the plant 3 is formed, and air containing a pest control component is blown into the space part from the blower-type pest control apparatus 1 to control the pests. Is the method.
For example, as shown in FIG. 10 , the nozzle 18 is configured such that the one-side nozzle 18-2 and the other-side nozzle 18-3 can be opened and closed, and the one-side nozzle 18-2 and the other-side nozzle 18-3 are shown in FIG. As shown by the solid line, it is positioned around the pest control part 3a of the plant 3 in the open state, and the one side nozzle 18-2 and the other side nozzle 18-3 are closed as shown by the phantom line in FIG. The pest control part 3a of the plant 3 is surrounded by the nozzle 18 to form a space part that surrounds almost the entire circumference thereof.
In this state, air containing a pest control component is blown into the space.

The one-side nozzle 18-2 and the other-side nozzle 18-3 may be swingably attached to the apparatus main body 10 so as to be openable and closable. The one-side nozzle 18-2 is fixed to the apparatus main body 10, and the one-side nozzle The other nozzle 18-3 may be swingably attached to 18-2 so that it can be opened and closed.
In addition, in embodiment shown in FIG. 10 , the notch part 18-4 is formed in the front end edge of the one side nozzle 18-2 and the other side nozzle 18-3, and the branch of the plant 3 is formed in this pair of notch parts 18-4. Is inserted so as to surround the leaf portion (pest control portion 3a).

  Moreover, as a control apparatus which implements this control method, as shown in FIG.7, FIG.8, the nozzle 18 and the air receiving member 2 are used, and the outlet 18e of the nozzle 18 and the opening part of the recessed part 2a of the air receiving member 2 are used. It may be the same size. In this case, the shape of the outer peripheral side plate 18a of the nozzle 18 and the shape of the recess 2a of the air receiving member 2 may be whatever.

The fan 11b in each of the above embodiments is a sirocco fan, but may be an axial fan, a propeller fan, or the like.
Moreover, although the medicine carrier 12 is provided on the suction side of the fan 11b, it may be provided on the discharge side.

Insect control components used in the present invention include insecticides, acaricides, repellents, insect growth control agents, insecticides (essential oils, fragrances, solvents, etc.) that volatilize under conditions such as room temperature ventilation. Can be mentioned.
For example, when used for the purpose of insecticide, various volatile insecticides conventionally used, particularly pyrethroid insecticides are preferably used because of their high safety.

It is front explanatory drawing which shows the 1st Embodiment of this invention. It is a top view when a plant is thick. It is a top view of a ventilation type pest control apparatus. It is AA sectional drawing of FIG. It is a front view of a pest control apparatus. It is a top view of a pest control apparatus. It is transverse cross-sectional explanatory drawing which shows the 2nd Embodiment of this invention. It is a cross-sectional view of a pest control apparatus. It is a cross-sectional explanatory drawing which shows the 3rd Embodiment of this invention. It is front explanatory drawing which shows the 4th Embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Air blow type pest control apparatus, 2 ... Air receiving member, 2a ... Concave part, 3 ... Plant, 3a ... Pest control part, 4 ... Pest, 10 ... Main body of apparatus, 11 ... Blower, 12 ... Drug carrier, 13 ... Exhalation Outlet, 17 ... gripping part, 18 ... nozzle, 18a ... outer peripheral side plate, 18e ... outlet, 20 ... fixture, 30 ... bag-like object, 31 ... space part.

Claims (4)

The apparatus main body 10 is provided with a blower 11 and a drug carrier 12, and the blower 11 is driven to release air containing a pest control component carried by the drug carrier 12 from the discharge port 13 into the air. A method in which a worker holds the device 1 and the air receiving member 2 having the recess 2a by hand, and controls a part of the plant by pests,
An operator holds the blower-type pest control apparatus 1 and the air receiving member 2 by hand, and the blower-type pest control apparatus 1 is disposed on one side of the pest control part 3a which is a part of the plant 3, and the discharge port 13 is the pest control. Provided toward the portion 3a, the air receiving member 2 is provided on the other side of the pest control portion 3a, the concave portion 2a is provided toward the pest control portion 3a and the discharge port 13, and in this state, the blower type pest control device 1, air containing a pest control component is blown to the pest control portion 3a, the air blown to the pest control portion 3a is retained in the recess 2a of the air receiving member 2, and the blow type pest control device pest control method of the plant, characterized in that the control of pests by enclosing the periphery of the pest control portion 3a with air containing the pest control component by blowing air containing the insect controlling component at 1. The apparatus main body 10 is provided with a blower 11 and a drug carrier 12, and the blower 11 is driven to release air containing a pest control component carried by the drug carrier 12 from the discharge port 13 into the air. A method for controlling a pest using a device 1, comprising:
The nozzle 18 and the air receiving member 2 provided in the blower-type pest control apparatus 1 surround the pest control portion 3a of the plant 3 and air containing a pest control component released from the blower-type pest control apparatus 1 in that state. Is sprayed on the pest control part 3a as an arc-shaped flow by the nozzle 18, and the air flows along the recess 2a of the air receiving member 2 and circulates to the nozzle 18, thereby causing the pest control part of the plant 3 to flow. A pest control method for plants, comprising controlling the pests by retaining the air as a swirling flow around 3a. The apparatus main body 10 is provided with a blower 11 and a drug carrier 12, and the blower 11 is driven to release air containing a pest control component carried by the drug carrier 12 from the discharge port 13 into the air. A method in which an operator holds the device 1 by hand and controls a part of a plant by pests,
The apparatus body 10 includes a substantially C-shaped outer peripheral side plate 18a, an inner peripheral side plate 18b, and a pair of end face plates 18c, and an inlet 18d, an outlet 18e, and a bottom surface 18- As the air containing the pest control component flowing into the inlet 18d from the discharge port 13 flows through the nozzle 18 having a shape 1 along the outer peripheral side plate 18a, a swirl flow is formed in the space 18-1. Provided to stay ,
An operator holds the blower-type pest control apparatus 1 by hand and brings the outlet 18e of the nozzle 18 close to the pest control part 3a which is a part of the plant 3 so that the air touches the pest control part 3a. A pest control method for plants, characterized by controlling pests. The apparatus main body 10 is provided with a blower 11 and a drug carrier 12, and the blower 11 is driven to release air containing a pest control component carried by the drug carrier 12 from the discharge port 13 into the air. A method in which an operator holds the device 1 by hand and controls a part of a plant by pests,
The apparatus main body 10 has a one-side nozzle 18-2 and an other-side nozzle 18-3 that can be freely opened and closed, and a nozzle that forms a space by closing the one-side nozzle 18-2 and the other-side nozzle 18-3. 18 is provided so that air containing a pest control component from the discharge port 13 is blown into the space portion,
The operator holds the blow type pest control apparatus 1 by hand, and the one side nozzle 18-2 and the other side nozzle 18-3 are opened around the pest control part 3a which is a part of the plant 3. In this state, by closing the one-side nozzle 18-2 and the other-side nozzle 28-3, the substantially entire circumference of the pest control portion 3a is surrounded by the space portion of the nozzle 18,
A plant pest control method, comprising: controlling a pest by blowing air containing a pest control component from the blower-type pest control apparatus 1 into the space of the nozzle 18 .

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