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EP-3967139-B1 - INSECT TRAP

EP3967139B1EP 3967139 B1EP3967139 B1EP 3967139B1EP-3967139-B1

Inventors

  • HIROTA, NORIFUMI

Dates

Publication Date
20260506
Application Date
20200120

Claims (10)

  1. An insect trap (100) comprising: an attraction light source (210) that emits light for attracting insects; a mortar-shaped part (160) disposed vertically below the attraction light source (210) and having an aperture whose diameter is narrowed toward vertically downward; a cylindrical part (170) disposed vertically below the mortar-shaped part (160) so as to extend from the mortar-shaped part (160), the cylindrical part (170) extending vertically downward from the bottom portion of the mortar-shaped part (160); a fan (190) that generates an airflow in a direction sucking air from the aperture of the mortar-shaped part (160) into the cylindrical part (170); a long transparent cylindrical part (180) that is disposed vertically below the cylindrical part (170) and transmits light; and a net (310) disposed vertically below the long transparent cylindrical part (180) so as to trap insects, characterized in that the long transparent cylindrical part (180) is made of synthetic resin and is attached below the cylindrical part (170), the long transparent cylindrical part (180) having openings only at its top and bottom, and having a length of 1m or more.
  2. The insect trap (100) according to claim 1, characterized in that an attractant for attracting insects is disposed in the vicinity of the mortar-shaped part (160).
  3. The insect trap (100) according to claim 1 or 2, characterized in that The long transparent cylindrical part (180) is applied with an adhesive (270).
  4. The insect trap (100) according to any one of claims 1 to 3, characterized in that a cylindrical protective net (280) is provided so as to surround the outer circumference of the long transparent cylindrical part (180).
  5. The insect trap (100) according to claim 4, characterized in that An adhesive sheet (285) is provided inside or outside the protective net (280).
  6. The insect trap (100) according to any one of claims 1 to 5, characterized in that the attraction light source (210) has an emission wavelength range of 500 nm or more and 750 nm or less and has a maximum emission peak wavelength in a wavelength range of 540 nm or more and 630 nm or less.
  7. The insect trap (100) according to claim 6, characterized by further comprising an auxiliary light source (220) having a maximum emission peak around an emission wavelength of 565 nm.
  8. The insect trap (100) according to any one of claims 1 to 5, characterized in that the attraction light source (210) has an emission wavelength range of 300 nm or more and 500 nm or less and has a maximum emission peak wavelength in a wavelength range of 340 nm or more and 450 nm or less.
  9. The insect trap (100) according to claim 8, characterized by further comprising an auxiliary light source (220) having a maximum emission peak wavelength in a wavelength range of 340 nm or more and 450 nm or less.
  10. The insect trap (100) according to claim 8 or claim 9, characterized by further comprising an auxiliary light source (220) having a maximum emission peak wavelength in a wavelength range of 540 nm or more and 630 nm or less.

Description

Technical Field The present invention relates to an insect trap for exterminating pests, which is used in farms to reduce feeding damage to cultivated crops caused by pests. Background Art In groves where fruits such as strawberry and peach are grown, or in farms where cultivated crops such as spinach and chrysanthemum, it is necessary to exterminate pests in order to reduce feeding damage to such crops caused by the pests. Thus, for example, pests are attracted using an attraction light source such as a blue fluorescent light and killed by electric stimulation, or pests are sucked in using a blower and trapped. For example, Patent Document 1 (JP 2005-229997A) discloses, as illustrated in FIG. 1 of the document, an insect trap composed of an attraction light source 2, reflective plates 4 and 5, a flying means including an electric motor 6, a fan 7, a white insect net 8, and the like, and a killing and trapping means. In such an insect trap, insects attracted by light from the light source 2 are slipped down by the reflectors 4 and 5 and are sucked in and killed by the blower unit including the motor 6 and fan 7. Finally, the insects thus killed are dropped into the trapping net 8. Patent Document 1: JP 2005-229997A Disclosure of the Invention Problems to be Solved by the Invention Conventional insect trap has such a problem that light from the attraction light source 2 does not reach the area below the refractive plate 5 to reduce a probability that pests at this area are attracted by the attraction light source 2 to be trapped and exterminated. Even when the number of pests that have failed to be trapped is extremely small, some pests are very fast in growing speed and exponentially increase with time, so that a slight reduction in the extermination probability can cause a great damage to crops such as fruits and vegetables. Further, there is a problem for tall crops that cold air tends to remain around the root thereof to cause an increase in the incidence of disease and a reduction in production rates due to difficulty in fruiting around the root. However, there have been developed no insect traps that can solve such problems. Means for Solving the Problems To solve the above problems, an insect trap according to the present invention includes: an attraction light source that emits light for attracting insects; a mortar-shaped part disposed vertically below the attraction light source and having an aperture whose diameter is narrowed toward vertically downward; a cylindrical part disposed vertically below the mortar-shaped part so as to extend from the mortar-shaped part, the cylindrical part extending vertically downward from the bottom portion of the mortar-shaped part; a fan that generates an airflow in a direction sucking air from the aperture of the mortar-shaped part into the cylindrical part; a long transparent cylindrical part that is disposed vertically below the cylindrical part and transmits light; and a net disposed vertically below the long transparent cylindrical part so as to trap insects, characterized in that the long transparent cylindrical part is made of synthetic resin and is attached below the cylindrical part, the long transparent cylindrical part having openings only at its top and bottom, and having a length of 1m or more. In the insect trap according to the present invention, an attractant for attracting insects is disposed in the vicinity of the mortar-shaped part. In the insect trap according to the present invention, the long transparent cylindrical part is applied with an adhesive. In the insect trap according to the present invention, a cylindrical protective net is provided so as to surround the outer circumference of the long transparent cylindrical part. In the insect trap according to the present invention, an adhesive sheet is provided inside or outside the protective net. In the insect trap according to the present invention, the attraction light source has an emission wavelength range of 500 nm or more and 750 nm or less and has a maximum emission peak wavelength in a wavelength range of 540 nm or more and 630 nm or less. The insect trap according to the present invention further includes an auxiliary light source having a maximum emission peak around an emission wavelength of 565 nm. In the insect trap according to the present invention, the attraction light source has an emission wavelength range of 300 nm or more and 500 nm or less and has a maximum emission peak wavelength in a wavelength range of 340 nm or more and 450 nm or less. The insect trap according to the present invention further includes an auxiliary light source having a maximum emission peak wavelength in a wavelength range of 340 nm or more and 450 nm or less. The insect trap according to the present invention further incudes an auxiliary light source having a maximum emission peak wavelength in a wavelength range of 540 nm or more and 630 nm or less. Advantageous Effects of the Invention The insect