JP2008022833A - Method for capturing stored grain insect pest and apparatus for capturing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for efficiently attracting stored grain insect pests and simply capturing the stored grain insect pests and to provide an apparatus therefor. <P>SOLUTION: (1) The method for capturing the stored grain insect pests is characterized as emitting light of a blue light-emitting diode or a white light-emitting diode, attracting the stored grain insect pests and capturing the stored grain insect pests. (2) The method for capturing the stored grain insect pests as described in claim 1 is characterized as capturing the stored grain insect pests with a pressure-sensitive adhesive layer. (3) The apparatus for capturing the stored grain insect pests is equipped with the blue light-emitting diode or the white light-emitting diode and a power source apparatus. (4) A grain trier for capturing the stored grain insect pests is equipped with the blue light-emitting diode or the white light-emitting diode and the power source apparatus. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method and a capturing device for effectively attracting and capturing stored pests.

  As a method for controlling stored grain pests such as Kokuzo, there is a method in which a mat adsorbed with pesticides is placed near the rice being stored and attracted to kill insects (Patent Document 1). Although the method using such a pesticide is a simple method, there is a problem that it does not actively attract wolfberry and is inefficient.

  Insecticidal methods using gas such as fumigants are also known. For example, a method is disclosed in which agricultural products or foods contained in a sealed container are pressurized to 5 to 60 atmospheres, and then rapidly decompressed instantaneously or for 10 minutes to kill cedar elephants and the like (Patent Document 2). Also, when fumigating grains using carbon dioxide, ozone gas is mixed with high-concentration carbon dioxide of 60 vol% or more as an fumigation gas supplied to the fumigation chamber so that the ozone concentration is 150 ppm to 300 ppm. A method of using is also disclosed (Patent Document 3). Furthermore, regarding a fumigation method and a fumigation system, there is disclosed a method and system capable of safely obtaining a high concentration of hydrogen phosphide without fear of ignition and shortening the fumigation time (Patent Document 4). In addition, as a pest control method for exhibits, a pest control method has been proposed in which an exhibit is housed in an airtight container and suffocated by a nitrogen gas to suffocate a pest, such as wolfberry (Patent Document 5). However, such a high pressure pressurization and decompression system, a removal method using carbon dioxide gas, ozone gas, nitrogen gas or a fumigant has problems such as the need for an airtight warehouse and expensive equipment.

As a method for extinguishing pests other than stored grain pests, a method for attracting and capturing pests using light is known. For example, there has been proposed a method for attracting fleas using a light emitting diode having an emission main wavelength of 470 + 20 nm and an apparatus using the method (Patent Document 6). However, this method is a method of extermination of fleas, and a method for capturing a stored grain pest using light has not been known.
JP-A-4-45734 JP 5-130854 A JP-A-9-291007 JP-A-9-291007 JP 2002-272341 A JP 2001-145449 A

  An object of the present invention is to provide a method and an apparatus for attracting stored pests efficiently and capturing them easily.

It is a common experience that stored-grain pests, such as Kokuzo, escape into the dark when exposed to sunlight. However, the present inventors have conducted experiments using various light-emitting diodes, and found that stored grain pests gather for the light of a specific light-emitting diode, and have reached the present invention. That is, the invention according to the present application is an invention described in the following (1) to (4).
(1) A method for capturing stored pests, wherein a blue light emitting diode or a white light emitting diode is caused to emit light to be attracted and captured.
(2) The method for capturing stored pests according to (1), wherein the method is captured by an adhesive layer.
(3) A stored grain pest capturing device including a blue light emitting diode or a white light emitting diode and a power supply device.
(4) A grain stab for storing stored pests provided with a blue light emitting diode or a white light emitting diode and a power supply device.

  By using the present invention, stored pests can be controlled, and when a blue light emitting diode or a white light emitting diode is incorporated in a grain stab, not only the stored pests can be captured but also used for prediction.

  The present invention will be described in detail below. A first aspect of the present invention is a method for capturing stored pests, wherein a blue light emitting diode or a white light emitting diode is caused to emit light to be attracted and captured.

  The “stored grain pest” targeted by the present invention is a pest found in warehouses for storing cereals, food processing factories, rice mills, flour mills, general households, etc., Weevilidae, Weevilidae, Poppycidae, Legumeidae , Leopard beetles, cutworms, beetles, scallops, bark beetles, longhorn beetles, scallops, beetles, beetles, beetles, beetles, beetles, beetles, beetles And moths (Phoenoptera) such as Pyralidae, Kibaga superfamily, Hirosukoga, etc. are exemplified.

  The blue light emitting diode used in the present invention is a diode that emits light that feels blue with the naked eye when light is emitted by applying a voltage, for example, a diode that emits blue having a peak wavelength of around 470 nm and a half width of about 30 nm. is there.

  The white light emitting diode used in the present invention is a diode that emits light that feels white with the naked eye when light is emitted by applying voltage. For example, the first peak wavelength is around 460 nm, the half width is about 26 nm, and the second peak. The diode emits white light having a wavelength of around 560 nm.

  The present invention is characterized in that a blue light-emitting diode or a white light-emitting diode emits light to attract and capture stored pests. In the case of a white diode, the same effect as that of a blue light emitting diode is recognized by including blue having a peak wavelength near 460 nm.

  A blue light emitting diode or a white light emitting diode may be used alone, or a plurality of blue light emitting diodes or a white light emitting diode may be provided in combination. By providing a plurality of light emitting diodes, the luminance can be increased and the effect of attracting stored pests can be enhanced.

  A power source is required to cause the blue light emitting diode or the white light emitting diode to emit light. The power source is not particularly limited, and solar cells can be used. Manganese batteries, graphite fluoride / lithium batteries, manganese dioxide / lithium batteries, thionyl chloride / lithium batteries, iron sulfide / lithium batteries, copper oxide / lithium batteries, Batteries such as alkaline dry batteries, air zinc batteries, silver oxide batteries, nickel-based primary batteries, nickel / hydrogen batteries, nickel / cadmium batteries, lithium ion batteries, lead storage batteries, and fuel cells can be installed in the equipment. The device can be easily installed regardless of location. The shape of the battery is not limited, but a button-type small battery is particularly preferable.

  It is necessary to capture stored pests attracted by light emission of blue light emitting diodes or white light emitting diodes, but the method is not particularly limited. For example, there is a method of making a check valve structure that does not come out once entered, a method of providing an adhesive layer and capturing by adhesive force, a method of killing by electric shock, a method of killing by an insecticide, etc. A method of capturing by force is simple and preferable. According to this method, since it is small in size and requires no work such as electrical wiring, it can be installed at any location in the warehouse, and stored grains pests can be captured simply by collecting them after a certain time.

  Examples of the adhesive used in the adhesive layer include natural rubber, synthetic rubber, ethylene-vinyl acetate copolymer, styrene-butadiene block polymer, polyisobutylene, polybutene, and atactic polypropylene. The pressure-sensitive adhesive layer can be provided by using one or more of these pressure-sensitive adhesives, using a solvent, or applying it in a state where the viscosity is lowered by heating.

  An example of a stored grain pest capturing apparatus that provides an adhesive layer and captures it with adhesive force will be described with reference to the drawings. FIG. 1 shows an apparatus of the type installed on the floor surface of a grain storage warehouse or the like, and is intended for stored grain pests that lean on the floor surface. In FIG. 1, a main body 1 of a stored grain pest capturing device is formed of a capturing portion 2 provided inside the device and an intrusion portion 4 having an intrusion port 3. As shown in FIG. 2 which is a cross-sectional view of FIG. 1, an inner layer 5 formed of a transparent or translucent member (transparent plastic or the like) having light transmittance is provided between the capturing portion 2 and the intrusion portion 4. The parts are separated. The light sources 10 and 11 are installed on the inner side with respect to the inner layer 5 of the capturing unit 2, and the light passes through the inner layer 5 and is irradiated to the outside of the entrance 3. Thus, by using the inner layer 5 as a transparent or translucent member, it is possible to irradiate stable light from the inside of the apparatus to the outside without being affected by dust subsidence outside the apparatus. An adhesive sheet holding unit 6 is provided inside the capturing unit 2, and an adhesive sheet 7 is disposed on the upper part. Furthermore, the inner layer 5 is open at the upper part of the capture part 2 and forms a passage 8 through which the invaded stored grain pests pass, and the stored grain pests once captured by the adhesive sheet 7 through the passage 8 pass through the passage again. It is difficult to reverse 8 The adhesive sheet holding part 6 can be easily opened and closed by a hinge structure from the bottom of the main body 1 as shown in FIG.

  There is no restriction on the dimensions of the stored grain pest capture device of FIG. However, the height of the entrance 3 is suitably 2 mm to 10 mm, more preferably 3 mm to 5 mm. If it is 2 mm or less, the irradiation area becomes narrow, so that strong light irradiation from the light sources 10 and 11 to the entrance 3 cannot be expected. On the other hand, if it is 10 mm or more, strong irradiation with light can be expected, but subsidence such as dust at the entrance 3 increases, so that strong irradiation cannot be expected.

  As shown in FIG. 3, the pressure-sensitive adhesive sheet 7 can be easily removed and replaced while being fixed to the pressure-sensitive adhesive sheet holding unit 6. Therefore, by fixing the adhesive sheet 7 in which the stored grain pests are captured together with the adhesive sheet holding part 6 and bringing it back, it becomes possible to stably identify the stored grain pests even after the replacement, so that not only the capture but also the prediction Leads to.

  The number of the entrances 3 may be one or more with respect to the apparatus, and is not particularly limited, but is preferably installed in two directions as shown in FIG. The light sources 10 and 11 may have a structure suspended from the ceiling of the capture unit 2, and a plurality of the light sources 10 and 11 may be arranged in parallel to the inner layer 5 of the capture unit 2. The light sources 10 and 11 are devices composed of a blue light emitting diode or a white light emitting diode and a button battery.

  The light sources 10 and 11 pass through the inner layer 5 and are irradiated with light toward the entrance 3. The surface of the inner layer 5 to which light is irradiated is formed of a transparent or translucent member having optical transparency, and further, a corrugated plate, a honeycomb, and a lens whose inner surface, outer surface side, or both surfaces diffuse light It can be formed from a structure or the like.

  Moreover, the stored grain pest capturing apparatus provided with the blue light emitting diode or the white light emitting diode and the power supply device can also be used for sashimi. A cereal stab is a device used to predict stored pests in grains such as brown rice contained in containers, packaging, silos, etc. This is a device for determining whether or not there is a stored grain pest. In a normal grain stab, a stored grain pest is detected if it happens to be stabbed, but a stored grain pest located at a distance is not detected. The stored grain pest capturing sashimi provided with the blue light emitting diode or the white light emitting diode and the power supply device of the present invention is more accurately inspected because the stored pest is attracted and enters the stab from other than the part where it is embedded. be able to.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a grain stab for capturing stored pests according to the present invention will be described with reference to the drawings. The main body 21 of the stored grain pest capturing apparatus of FIG. 4 includes a capturing portion 22 and an intruding portion 24 having a large number of intrusion holes 23. As shown in FIG. 5, the capturing portion 22 and the intruding portion 24 are screwed. It is connected by the structure etc., and can be removed easily. As shown in FIG. 6, which is a cross-sectional view of FIG. 4, a light source 30 is attached to the inside of the capture unit 22, and stored grain pests that have entered through the intrusion hole 23 are provided between the capture unit 22 and the intrusion unit 24. It passes through the passage 25 and is captured by the capture unit 22.

  The capture part 22 has an acute-angled conical shape and is also a tip part that pierces into the grain. Although there is no restriction | limiting about the dimension of a stored grain pest capturing apparatus, The length of the main body 21 of the grain stab which added the capture part 22 and the penetration | invasion part 24 is 200-700 mm, and 300-500 mm is preferable. If the length is less than 200 mm, sufficient capture cannot be expected. On the other hand, when it exceeds 700 mm, it is difficult to pierce the grain. The intrusion portion 24 has a cylindrical shape and a diameter of 5 to 50 mm, and 20 to 40 mm is particularly preferable. If the diameter is less than 5 mm, bending due to insufficient strength occurs, and there is a risk of remaining in the grain and becoming a foreign substance. On the other hand, when the diameter exceeds 50 mm, it is difficult to pierce the grain by human power. The length and diameter can be appropriately selected depending on the application to be used. For example, the length and the diameter are increased in the case of a deep container such as a flexible container.

  A large number of intrusion holes 23 are provided on the side surface of the intrusion portion 24. Similar to the number and arrangement of the entry holes 23, the shape is not particularly limited, such as a circle, an ellipse, or a rectangle. However, the size of the intrusion hole 23 needs to be a size through which stored grain pests can pass, and it is preferable that the size of the entry hole 23 is difficult. When the grain is rice, the size of the intrusion hole 23 is usually 3 mm or less, and preferably about 1.7 mm to 2.5 mm. On the other hand, in the case of wheat, the size of the penetration hole 23 is usually 5 mm or less, and preferably about 1.7 to 3.0 mm.

  The passage 25 has a funnel-like structure with a mouth narrowing toward the capture unit 22, and serves as a path connecting the capture unit 22 and the intrusion unit 24. Furthermore, by providing the ratchet structure 26 on the catching part 22 side, it becomes difficult for the stored pests that have once entered the catching part 22 through the passage 25 to reverse the course 25.

  The light source 30 is attached to the inside of the capture part 22 as shown in FIG. The light source 30 is a device composed of a blue light emitting diode or a white light emitting diode and a button battery.

  The passage 25 is made of a transparent or translucent member (transparent plastic or the like) having a light transmission property, and the light irradiated from the light source 30 is transmitted into the intrusion portion 24. Therefore, stored grain pests that have entered the intrusion portion 24 through the intrusion hole 23 are attracted to the capture portion 22. Furthermore, by making the surface of the passage 25 into a corrugated plate, a honeycomb, a lens structure or the like, light can be further diffused. Similarly, the intrusion portion 23 may be a transparent or translucent member. On the other hand, light may be diffused into the intrusion portion 24 by forming the inner surface of the intrusion portion 24 into a convex and concave mirror surface structure. In addition, the capture unit 22 may be a transparent or translucent member, and the surface thereof may be a corrugated plate, a honeycomb, or a lens structure.

Hereinafter, based on an Example and a comparative example, this invention is demonstrated in detail.
(Example 1)
The relationship between the emission wavelength range of light-emitting diodes and the attractiveness rate of wolfberry was investigated.
As shown in FIG. 7, a cylindrical attracting device 34 (length 150 mm × inner diameter 8 mm) composed of an open end 31 and a closed end 33 having a light emitting diode 32 was prepared. The attracting device emits light by a 3V button type battery (not shown), and the light does not leak from the cylindrical portion 35 and is emitted to the outside only from the open end 31. Sealable test device 36 (width 370 mm × depth 295 mm × height 120 mm) shown in FIG. 8 that houses four types of light emitting diodes of blue, yellow, red and green, which have greatly different emission wavelength ranges, and an attracting device without light emitting diodes. Was maintained at 25 ° C., 300 kokuzo elephants were released, the number of heads collected after 1 hour was observed, and the value when the total number of heads of each attracting device was 100 was taken as the attraction rate. As a result, as shown in Table 1, the attracting rate of Kokuzo in the attracting device equipped with the blue light emitting diode of the present invention was 76% of the total, which was significantly higher than the attracting rate in the other attracting devices of the comparative example. Has been shown to be attracted very strongly to the light of blue light emitting diodes.

(Examples 2-3)
Further, the same test as in Example 1 was performed using three types of blue, white and green, which are relatively close in emission wavelength range, four types of light emitting diodes including ultraviolet rays, and an attracting device without the light emitting diodes. As shown in Table 2, the attracting rate of wolfberry in the attracting device equipped with the blue light emitting diode of the present invention was 51% of the whole, which was higher than that of other attracting devices. Has been shown to be attracted very strongly to the light of blue light emitting diodes. In addition, in the attracting device equipped with the white light emitting diode, the attracting rate was as high as 30% of the whole, and thus it was shown that Kokuzo is strongly attracted to the light of the white light emitting diode.

  The stored grain pest capturing method of the present invention is used as a stored grain pest capturing apparatus, for example, on a floor surface along an inner wall of a factory or a warehouse. Furthermore, by applying it to cereals, it is used, for example, for predicting the occurrence status of flexible insects used for storing grains and stored pests inside silos.

It is a perspective view of the stored grain pest capturing apparatus which is 1 aspect of this invention. It is sectional drawing of the stored grain pest capturing apparatus of FIG. It is the perspective view which rotated the stored grain pest capturing apparatus of FIG. 1 90 degree | times. It is a side view of the grain stab which is 1 aspect of this invention. FIG. 5 is an exploded view of the grain stab of FIG. 4. It is a longitudinal cross-sectional view of the grain stab of FIG. It is an attracting apparatus sectional drawing. FIG. 3 is an arrangement drawing of an attracting device in a test device.

Explanation of symbols

1: Body 2: Capture unit 3: Intrusion port 4: Intrusion unit 5: Inner layer 6: Adhesive sheet holding unit 7: Adhesive sheet 8: Passage 10, 11: Light source 21: Main unit 22: Capture unit 23: Intrusion hole 24: Intrusion Part 25: Passage 26: Mouse-back structure 30: Light source 31: Open end 32: Light emitting diode 33: Closed end 34: Attracting device 35: Tubular part 36: Test device

Claims (4)

  A method for capturing stored pests, wherein a blue light-emitting diode or a white light-emitting diode is caused to emit light to be attracted and captured.   2. The stored grain pest capturing method according to claim 1, wherein the trapping is performed by an adhesive layer.   A storage insect pest capturing device comprising a blue light emitting diode or a white light emitting diode and a power supply device.   A cereal stab for storing stored pests with a blue or white light emitting diode and a power supply.

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