Patent Publication Number: US-2022225599-A1

Title: Termite attracting device, installation structure for termite attracting device, and method for installing termite attracting device

Description:
TECHNICAL FIELD 
     The disclosure relates to a termite attracting device, a structure for installing the termite attracting device, and a method for installing the termite attracting device. 
     BACKGROUND ART 
     Conventionally, various kinds of termite control devices and termite extermination devices are provided in order to prevent damages caused by the termites to the foundation and column of a building. 
     For example, the following Patent Literature 1 discloses a control method in which an insecticide is injected into a wood piece having a termite attracting property, the wood piece being decayed by a brown decay fungus, and the wood piece is provided on an ant path. 
     CITATION LIST 
     Patent Literature 
     
         
         PTL 1: Japanese Unexamined Patent Application Publication No.S52-41223 
       
    
     SUMMARY 
     Technical Problem 
     The wood member decayed by the brown decay fungus is expected to have some attraction effects; however, there is a tendency that cellulose is decomposed by the development of basidiomycetes, the strength of the wood member tends to be significantly reduced from the inside, and the termites no longer like the wood member as bait. In addition, since the wood piece is in an exposed condition, it tends to be easily dried and easily affected by wind or the like, and such an environment is repelled by the termites. 
     The present invention is achieved in view of the above-mentioned problems and has an object to provide a termite attracting device capable of effectively attracting the termites, a structure for installing the termite attracting device and a method for installing the termite attracting device. 
     Solution to Problem 
     In order to achieve the above-mentioned object, a termite attracting device of one embodiment of the present invention includes an attracting wood member on the surface of which a soft-rot fungus grows, the soft-rot fungus decaying a wood member with a high moisture content from the surface into black-like color, and a cover member including at least a moisture-impermeable layer, with one wood end face of the attracting wood member exposed, the moisture-impermeable layer covering an outer circumferential face of the attracting wood member and the other wood end face of the attracting wood member 
     In order to achieve the above-mentioned object, a structure for installing the termite attracting device of one embodiment of the present invention is characterized in that the termite attracting device according to one embodiment of the present invention is installed in such a manner that the one wood end face is abutted to an installation target face. 
     In order to achieve the above-mentioned object, a method for installing the termite attracting device according one embodiment of the present invention is characterized in that the termite attracting device according to one embodiment of the present invention is installed in such a manner that the one wood end face of the attracting wood member is abutted to an installation target face with the outer circumferential face and the other wood end face covered with the cover member after immersing the attracting wood member in water. 
     Advantageous Effects of Invention 
     The termite attracting device, a structure for installing the termite attracting device and a method for installing the termite attracting device according to the embodiments of the present invention are constituted as mentioned above, and the termites are effectively attracted. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1A  and  FIG. 1B  diagrammatically illustrate one example of the termite attracting device according to one embodiment of the present invention,  FIG. 1A  is a schematic front view, and  FIG. 1B  is a schematic perspective view. 
         FIG. 2A  to  FIG. 2C  are partially broken schematic front views diagrammatically illustrating one example of the method for installing the termite attracting device according to one embodiment of the present invention. 
         FIG. 3A  and  FIG. 3B  diagrammatically illustrate one example of the structure for installing the termite attracting device according to one embodiment of the present invention,  FIG. 3A  is a schematic plan view, and  FIG. 3B  is a schematic cross-sectional view taken along the arrow X-X in  FIG. 2C . 
         FIG. 4A  is a schematic plan view diagrammatically illustrating one example of the structure for installing the termite attracting device, and  FIG. 4B  is a schematic plan view diagrammatically illustrating one variation of the structure for installing the termite attracting device. 
         FIG. 5A  is a schematic cross-sectional view diagrammatically illustrating one example of the termite attracting device and one example of the structure for installing the termite attracting device corresponding to  FIG. 3B  according to another embodiment of the present invention, and  FIG. 5B  is a schematic flow chart diagrammatically illustrating one example of the method for installing the termite attracting device according to another embodiment of the present invention. 
     
    
    
     DESCRIPTION OF THE EMBODIMENTS 
     The embodiments of the present invention are explained referring to the drawings. 
       FIG. 1  to  FIG. 4  are schematic views illustrating one example of the termite attracting device, one example and one variation of the structure for installing the termite attracting device, and one example of the method for installing the termite attracting device according to the first embodiment. 
     A termite attracting device  1  according to the embodiment, as illustrated in  FIG. 1A ,  FIG. 1B , and  FIG. 3B , has an attracting wood member  10  on the surface of which a soft-rot fungus that decays a wood member with a high moisture content from the surface into black-like color grows. In such a configuration, compared with the wood member which is decayed by a white decay fungus or a brown decay fungus in which cellulose or the like is decomposed by the growth of basidiomycetes and the strength of the wood member tends to be significantly reduced from the inside, the strength of the wood member is less likely reduced and decay into the inside of the wood member tends to be slow. Thus, the hardness preferred by the termites is kept for a long time and such a wood member is easily used as a nest. In addition, since it is difficult for hyphae and caps to grow in the wood member, the path formed in the attracting wood member  10  is restrained from being blocked by the growth of hyphae and caps. 
     The termite attracting device  1  has a cover member  20  including at least a moisture-impermeable layer  21 . With the first wood end faces  12 ,  16  exposed which are faces on one end of the attracting wood member  10 , the moisture-impermeable layer  21  covers outer circumferential faces  14 ,  18  of the attracting wood member  10  and second wood end faces  13 ,  17  which are faces on the other end of the attracting wood member  10 . In such a configuration, when the exposed first wood end faces  12 ,  16  are provided toward an installation target face  3  provided with an ant path  6  as illustrated in  FIG. 3A  and  FIG. 3B , it is difficult for the attracting wood member  10  to be dried, it is difficult for the inside of the termite attracting device  1  to be affected by wind or the like, and the inside of the termite attracting device  1  is kept in highly humid and sealed environment which is preferred by the termites. When the first wood end faces  12 ,  16  are provided toward the installation target face  3 , the antennae of the termites easily touch the wood end faces which are preferred by the termites and the termites are effectively attracted into the termite attracting device  1 . 
     An installation target  2  constituting the installation target face  3  of the termite attracting device  1  can be any members of a building such as a foundation, a pillar, a wall face, and various bases such as a floor base, and a heat insulation material.  FIG. 2  exemplifies a pillar elongated in the vertical direction as the installation target  2 . The installation target face  3  can constitute one side face of the installation target  2  or can be an approximately flat face. The installation target face  3  is preferably provided at a place where the ant path  6  is formed by the termites. 
     The termites to be attracted to the termite attracting device  1  can be so-called soil termites such as Reticulitermes and Coptotermes formosanus, dry-wood termites such as Incisitermes minor and Cryptotermes, or any kinds of termites. 
     The attracting wood member  10  is approximately in the shape of a column. The first wood end faces  12 ,  16  of the attracting wood member  10  are approximately in the shape of a flat face. The figures exemplify that the second wood end faces  13 ,  17  are also approximately in the shape of a flat face. The outer circumferential faces  14 ,  18  of the attracting wood member  10  are in the shape of a curved face around the entire circumference. In the embodiment, the attracting wood member  10  is approximately in the shape of a circular column. As illustrated in  FIG. 1A  and  FIG. 1B , the attracting wood member  10  approximately in the shape of a circular column is constituted with a plurality of attracting wood members, i.e., a first attracting wood member  11  and a second attracting wood member  15 . The first attracting wood member  11  and the second attracting wood member  15  are approximately the same in the dimension along the axial direction, i.e., direction from the first wood end faces  12 ,  16  to the second wood end faces  13 ,  17 . In the embodiment, the first attracting wood member  11  and the second attracting wood member  15  are approximately in the shape of a semicircular column. The figures exemplify that the first attracting wood member  11  and the second attracting wood member  15  are approximately the same in size and shape seen in the axial direction; however, the embodiment is not limited to such an exemplification. 
     The figures exemplify that a hollow portion penetrating in the axial direction is provided on the axial center approximately in the shape of a circular column, the axial center being formed by abutting the first attracting wood member  11  to the second attracting wood member  15 . In such a configuration, the surface area of the first attracting wood member  11  and the second attracting wood member  15  increases. However, such a hollow portion is not always required. 
     The figures exemplify that the attracting wood member  10  constituted by the first attracting wood member  11  and the second attracting wood member  15  is in the shape of a perfect circle seen in the axial direction and the attracting wood member  10  has the same diameter entirely along the axial direction; however, the embodiment is not limited to such an exemplification. For example, the attracting wood member  10  can be in the shape of an ellipse or approximately in the shape of a polygon seen in the axial direction, and further the attracting wood member  10  can be gradually tapered toward one direction in the axial direction or has a large diameter portion and a small diameter portion in the midway in the axial direction. Further, the attracting wood member  10  can be formed in various shapes. 
     The dimension in the axial direction and outer diameter of the attracting wood member  10  can be suitably set depending on the installation location and the size of the installation target face  3 , or in view of operability, installability, attractivity of the termites, and nesting ability. For example, the dimension of the attracting wood member  10  along the axial direction can be approximately from 50 mm to 300 mm, preferably approximately from 100 mm to 200 mm. The outer diameter of the attracting wood member  10  can be approximately from 30 mm to 150 mm, preferably approximately from 50 mm to 100 mm. 
     The attracting wood member  10  is a non-repellant wood member that the termites do not repel. Such a non-repellant wood member includes pine, cedar, cherry wood, willow, and aspen, and can be other wood. 
     The soft-rot fungus which grows on the surface of the attracting wood member  10  decays the wood member with high moisture content, which has difficulty to be decayed by the brown decay fungus or the white decay fungus, from the surface. The soft-rot fungus can be the one which decays the wood member having a moisture content, i.e., a dry basis moisture content, of equal to or larger than 100%, or the one which generally lives in soil. Such a soft-rot fungus can be the one which has lower decomposition power than the white decay fungus or the brown decay fungus and which requires one year or longer to decay the wood member from the surface to the inside, or the core, of the wood member having the outer diameter mentioned above. 
     The attracting wood member  10  can be the one on which surface the soft-rot fungus grows by immersing the wood member with a high moisture content in water containing the soft-rot fungus. The attracting wood member  10  can be the one on which surface the soft-rot fungus grows by immersing the wood member in water to become the attracting wood member  10  and the decayed wood member obtained in fields and mountains which is decayed by the soft-rot fungus in one container or storage bag. The attracting wood member  10  can be obtained by immersing in the above-mentioned water for several months. The embodiments to obtain the attracting wood member  10  on which surface the soft-rot fungus grows as mentioned above can include many variations. 
     The cover member  20  includes a light shielding layer  24  in the embodiment. In such a configuration, even when the termite attracting device  1  is provided at a bright place, it is difficult for light which is repelled by the termites to enter the termite attracting device  1  and the inside of the termite attracting device  1  has environment to attract the termites. 
     The light shielding layer  24  can also function as the moisture-impermeable layer  21  and can also be used as the moisture-impermeable layer  21 ; however, the light shielding layer  24  is separately provided from the moisture-impermeable layer  21  in the embodiment. 
     The moisture-impermeable layer  21  is configured so as not to pass moisture or is configured to have difficulty in passing moisture. The moisture-impermeable layer  21  is preferably an air-impermeable layer which does not pass air or has difficulty in passing air in addition to moisture. 
     The moisture-impermeable layer  21  includes an end-face covering portion  22  to cover the second wood end faces  13 ,  17  of the attracting wood member  10  and an outer-circumference covering portion  23  to cover the outer circumferential faces  14 ,  18  of the attracting wood member  10 . The moisture-impermeable layer  21  and the outer circumferential faces  14 ,  18  of the attracting wood member  10  can be provided so as to have a slight gap (about 1 mm to 3 mm) therebetween or in a closely contacted manner so as to have a gap less than 1 mm therebetween. 
     The moisture-impermeable layer  21  is transparent. The transparent degree of the moisture-impermeable layer  21  is sufficient as long as the inside of the termite attracting device  1  is visually recognized or existence of the termites is confirmed through the moisture-impermeable layer  21 . The moisture-impermeable layer  21  can be colored transparent or semitransparent. 
     The moisture-impermeable layer  21  can be made from, for example, a transparent synthetic resin material such as polyvinylidene chloride, polyethylene terephthalate, polycarbonate, or acrylic resin. The moisture-impermeable layer  21  can be in the form of a film. In such a case, part of or the entire of the end-face covering portion  22  and the outer-circumference covering portion  23  which constitute the moisture-impermeable layer  21  can be formed in a plurality of layers. The moisture-impermeable layer  21  can be in the shape of a bottomed tubular container opening in one direction in which the tubular outer-circumference covering portion  23  is provided in a series toward one direction in the axial direction from the outer circumferential edge portion of the end-face covering portion  22  in the form of a sheet or a plate. Further, the moisture-impermeable layer  21  can be configured in various manners. The gap formed between the outer-circumference covering portion  23  of the moisture-impermeable layer  21  and the outer circumferential faces  14 ,  18  of the attracting wood member  10  can be filled with a transparent gel material or the like which is not repelled by the termites. 
     The light shielding layer  24  is configured not to allow transmission of light or is configured to have difficulty in transmitting light. The light shielding layer  24  is provided on the outer circumferential side of the moisture-impermeable layer  21  in the embodiment. As illustrated in  FIG. 4A , the light shielding layer  24  includes an opening  28  through which the inside of the termite attracting device  1  is visually recognized and a lid portion  27  to open or close the opening  28  when the termite attracting device  1  is installed. In such a configuration, the inside of the termite attracting device  1  is confirmed without removing the termite attracting device  1  from the installation target  2 . The light shielding layer  24  is provided on the outer circumferential side of the transparent moisture-impermeable layer  21 , so that it is difficult for outside air or the like to enter the termite attracting device  1  when the inside of the termite attracting device  1  is checked. Therefore, even when the termites exist in the termite attracting device  1 , it is difficult for such a configuration to impart stress to the termites and restrains the termites from being cautious. 
     The light shielding layer  24  has an end-face covering portion  25  provided so as to cover the outside of the end-face covering portion  22  of the moisture-impermeable layer  21 , i.e., the outside of the attracting wood member  10  in the axial direction, and an outer-circumference covering portion  26  provided so as to cover the outer circumference of the outer-circumference covering portion  23  of the moisture-impermeable layer  21 . The light shielding layer  24  and the moisture-impermeable layer  21  can have a slight gap (about 1 mm to 3 mm) therebetween or can be in a closely contacted manner so as to have a gap less than 1 mm therebetween. 
     The light shielding layer  24  can be made of a metallic material such as aluminum or a synthetic resin material containing pigments with high light shielding ability. The light shielding layer  24  can be in the form of a film, i.e., a foil, and, for example, can be made from an aluminum foil. In such a case, similar to the above, part of or the entire of the end-face covering portion  25  and the outer-circumference covering portion  26  which constitute the light shielding layer  24  can be formed in a plurality of layers. 
     When the light shielding layer  24  is made of an aluminum foil or the like, part of which is easily peeled off and covered again, the opening  28  can be formed by peeling off part of the aluminum foil or the peeled portion is formed as the lid portion  27 . The figures exemplify that part of the outer-circumference covering portion  26  of the light shielding layer  24  is peeled off in a cantilever manner to form the lid portion  27  and the opening  28  is provided; however, the embodiment is not limited to such an exemplification. The lid portion  27  is not limited to be freely opened or closed like a hinged door without peeling off the part thereof relative to the outer-circumference covering portion  26 , and can be detachable to the outer-circumference covering portion  26 . 
     The light shielding layer  24  can be in the shape of a bottomed tubular container opening in one direction in which the tubular outer-circumference covering portion  26  is provided in a series toward one direction in the axial direction from the outer circumferential edge portion of the end-face covering portion  25  in the form of a sheet or a plate, in place of the above-mentioned embodiment. In such a case, for example, the lid portion  27  for opening or closing the opening  28  provided for part of the outer-circumference covering portion  26  can be separately provided. Also in such a case, the lid portion  27  can be provided for the outer-circumferential covering portion  26  slidably or rotatably, or detachably. Further, the light shielding layer  24  can have various configurations. The cover member  20  is not limited to one with the moisture-impermeable layer  21  and the light shielding layer  24  which are separately provided, and the light shielding layer  24  can be also used as the moisture-impermeable layer  21 . When the installation position of the termite attracting device  1  is dark, the cover member  20  can be configured not to include the light shielding layer  24 . Further, the cover member  20  can have various configurations. A cover portion to detachably cover the first wood end faces  12 ,  16  side can be provided in order not to dry the attracting wood member  10  in the process of commodity circulation of the termite attracting device  1 . 
     The termite attracting device  1  configured as mentioned above can be installed to be mentioned below, for example. 
     After immersing the attracting wood member  10  in water, with the outer circumferential faces  14 ,  18  and the second wood end faces  13 ,  17  covered by the cover member  20 , the first wood end faces  12 ,  16  of the attracting wood member  10  can be abutted to the installation target face  3 , referring to step S 100  and step S 103  in  FIG. 5B . In such a configuration, the attracting wood member  10  effectively has a high moisture content and the inside of the installed termite attracting device  1  is effectively made in a highly humid atmosphere. The time for immersing the attracting wood member  10  in water can be about several minutes, about several hours, or about several days. In place of an embodiment in which the attracting wood member  10  is immersed in water, the attracting wood member  10  can be sprayed with water by a suitable spraying device, or the attracting wood member  10  can be installed in a covered condition with the cover member  20  without supplying water before installation since the original wood member has a high moisture content as mentioned above. 
     The termite attracting device  1  installed as mentioned above is configured such that the first wood end faces  12 ,  16  abut to the installation target face  3 . 
     Before installing the termite attracting device  1  as mentioned above, part of the ant path  6  is removed as illustrated in  FIG. 2A  and  FIG. 2B , and the termite attracting device  1  can be installed so as to cross the first end portion  7  and the second end portion  8  on the removed side as illustrated in  FIG. 2C . In such a configuration, the antennae of the termites which pass the ant path  6  and come out the removed portion are effectively made to contact with the first wood end faces  12 ,  16  of the attracting wood member  10 . The dimension of the removed ant path  6  can be smaller than that of the inner diameter of the cover member  20  in such a manner that the first end portion  7  and the second end portion  8  on the removed side are housed in the cover member  20 . 
     When the attracting wood member  10  is overlapped on the first end portion  7  and the second end portion  8  of the ant path  6 , as illustrated in  FIG. 3B , a slight gap can be formed between the first wood end faces  12 ,  16  of the attracting wood member  10  and the installation target face  3 , the gap can be equal to or less than 3 mm, or preferably equal to or less than 2 mm. A concave portion to receive the first end portion  7  and the second end portion  8  of the ant path  6  can be provided for the first wood end faces  12 ,  16  of the attracting wood member  10  so as to make it difficult to form such a gap. 
     The figures exemplify that part of the ant path  6  is formed on the installation target  2 ; however, the embodiment is not limited to such an exemplification. The figures exemplify that the termite attracting device  1  is installed so as to coincide the approximate axial center of the attracting wood member  10  with the place where the ant path  6  was provided; however, the embodiment is not limited to such an exemplification. 
     As illustrated in  FIG. 3A  and  FIG. 3B , a paste-like sealing member  9  can be adhered to the installation target face  3  along the circumferential edge portion on the opening side so as to seal the opening side of the cover member  20 . Such an installation achieves a configuration that the paste-like sealing member  9  adheres to the installation target face  3  along the circumferential edge portion on the opening side so as to seal the opening side of the cover member  20 . In such a configuration, the sealing degree in the termite attracting device  1  is improved by a simple configuration. When the termite attracting device  1  is configured to be fixed to the installation target face  3  by the sealing member  9 , compared with a configuration in which the termite attracting device  1  is fixed with screws or nails, the termite attracting device  1  is easily installed and positioning is facilitated. 
     The sealing member  9  is moisture impermeable and has a light shielding effect. The sealing member  9  can be non-dry and a so-called seal putty. In such a configuration, adherence is easily and relatively surely executed with hands depending on the installation target face  3  and the outer circumferential shape of the termite attracting device  1 . And the termite attracting device  1  is removed in a relatively easy manner. 
     The sealing member  9  can contain a termite proofing agent so as not to be fed by the termites. The sealing member to seal the opening side of the cover member  20  can be a suitable sealing tape such as an adhesive tape, or a sealing member, i.e., a calking member, which is discharged by a calking gun, in place of the paste-like sealing member  9 . Further, without providing such a sealing member, the termite attracting device  1  can be fixed to the installation target face  3  with screws or nails in a closely contacted manner. 
     Although  FIG. 3A ,  FIG. 3B  and  FIG. 4A  exemplify that the termite attracting device  1  is installed for the installation target face  3  of which width is larger than the outer diameter of termite attracting device  1 ; the termite attracting device  1  can be installed for an installation target face  3 A of which width is smaller than the outer diameter of the termite attracting device  1  as illustrated in  FIG. 4B .  FIG. 4B  exemplifies that the termite attracting device  1  is installed along an internal corner portion of the installation target face  3 A of an installation target  2 A and an adjacent face  5  provided so as to be orthogonal to the installation target face  3 A. In such a case, it can be configured such that part of the first wood end faces  12 ,  16  of the attracting wood member  10  is abutted so as to be positioned corresponding to the ant path  6  of the installation target face  3 A and a sealing member  9 A is provided so as to cover the other region of the first wood end faces  12 ,  16  which are not abutted to the installation target face  3 A. The figure exemplifies that the sealing member  9 A is provided so as to adhere also to the other face  4  of the installation target  2 A orthogonal to the installation target face  3 A. 
     The other region of the first wood end faces  12 ,  16  which is not abutted to the installation target face  3 A can be configured to be covered by other sealing members, a lid portion, or the like. 
     The installation embodiment of the termite attracting device  1  is not limited to the embodiments mentioned above and various embodiments are applicable depending on the shape of the installation target faces  3 ,  3 A and the installation position where the ant path  6  is provided. A plurality of termite attracting devices  1  can be provided at intervals along the longitudinal direction of the ant path  6 . 
     Next explained are another embodiment of the termite attracting device, the structure for installing the termite attracting device, and the method for installing the termite attracting device according to one aspect of the present invention, referring to  FIG. 5 . 
     In the following embodiment, the difference from the embodiment explained above is mainly explained, the similar configurations are allotted with the same reference numerals and their explanations are omitted or briefly explained. The effect which is similar to those of the embodiments mentioned above is omitted or simply explained. 
       FIG. 5A  and  FIG. 5B  are schematic views illustrating one example of the termite attracting device according to the second embodiment, one example of the structure for installing the termite attracting device, and one example of the method for installing the termite attracting device. 
     In the embodiment, as illustrated in  FIG. 5A , a storage space  29  for storing an expellant  19  containing a slow acting termiticidal agent is provided in a termite attracting device  1 A. In such a configuration, when the termite attracting device  1 A is installed with the expellant  19  housed in the storage space  29 , the termites are effectively attracted, so that the termites are effectively made to take in the expellant  19 . 
     In the embodiment, an attracting wood member  10 A is constituted by only one (the second attracting wood member  15  in the figures) of the first attracting wood member  11  and the second attracting wood member  15  constituting the attracting wood member  10  of the termite attracting device  1  of the first embodiment, and the residual space covered by the cover member  20  constitutes the storage space  29 . The storage space  29  opens in one direction along the axial direction of the termite attracting device  1 A and is defined by the cover member  20  and the second attracting wood member  15 . In place of such an embodiment, the above-mentioned hollow portion can constitute the storage space  29  to store the expellant  19 , and the storage space  29  can be configured in various manners. 
     The expellant  19  can be bait containing a termiticidal component with slow acting property; thus a worker ant reached the termite attracting device  1  takes the expellant  19 , returns to a nest without dying immediately, and shares the expellant  19  to be taken in other termites. The expellant  19  can be produced in such a manner that growth inhibitor impeding molting of the termites such as bistrifluron and Nova Furmron is injected or impregnated as an effective component, into a cellusic base material as bait material such as a wood member and paper or is mixed with wood flour. Such expellant  19  can be a commercially available one as a so-called bait agent. The expellant  19  is preferably filled in the storage space  29  via a slight gap mentioned above with the cover member  20  and the second attracting wood member  15  defining the storage space  29  or so as to closely contact with the cover member  20  and the second attracting wood member  15 . The expellant  19  is preferably filled in the storage space  29  via a slight gap mentioned above with the installation target face  3  or so as to closely contact with the installation target  3 . The expellant  19  can be constituted in various manners. 
     The termite attracting device  1 A as configured above can be installed to be mentioned below as illustrated in  FIG. 5B . 
     Similar to the above-mentioned first embodiment, the attracting wood member  10 A (the second attracting wood member  15 ) is immersed in water (step S 100 ). Then, the expellant  19  and the attracting wood member  10 A can be housed in the cover member  20  with the expellant  19  attached with water containing the above-mentioned soft-rot fungus, and the first wood end face  16  of the attracting wood member  10 A can be abutted to the installation target face  3  (steps S 101  to S 103 ). In such a configuration, the soft-rot fungus which attracts the termites is attached on the expellant  19 , so that the termites are effectively attracted to take the expellant  19 . 
     For attaching water containing the soft-rot fungus to the expellant  19 , the expellant  19  can be immersed in water containing the soft-rot fungus or water containing the soft-rot fungus can be sprayed to the expellant  19 . The expellant  19  is not always required to be attached with water containing the soft-fungus. The expellant  19  and the attracting wood member  10 A can be simultaneously housed in the cover member  20 , or one of them can be housed at first and the other can be housed later. 
     Like the first embodiment mentioned above, the paste-like sealing member  9  can adhere to the installation target face  3  along the circumferential edge portion on the opening side so as to seal the opening side of the cover member  20 . 
     The termite attracting devices  1 ,  1 A, the structure for installing the termite attracting device, and the method for installing the termite attracting device explained in above-mentioned each embodiment are only one example and many variations are applicable. 
     REFERENCE SIGNS LIST 
       1 ,  1 A termite attracting device 
       10 ,  10 A attracting wood member 
       12 ,  16  first wood end face (one wood end face) 
       13 ,  17  second wood end face (the other wood end face) 
       14 ,  18  outer circumferential face 
       19  expellant 
       20  cover member 
       21  moisture-impermeable layer 
       24  light shielding layer 
       27  lid portion 
       28  opening 
       29  storage space 
       3 ,  3 A installation target face 
       9 ,  9 A seal member