JP5512295B2 - Fly insect trap - Google Patents

Description

  The present invention relates to a flying insect trap for catching flying insects.

  2. Description of the Related Art Conventionally, a flying insect trap for catching flying insects such as flies has been actively developed. In such a flying insect trap, it is important how to attract the flying insect to the trap. In order to improve the attracting effect of flying insects, the attractant is often devised to appeal to the smell of flying insects. In recent years, as a method different from the olfactory attraction, devising the color of the container constituting the trap has been performed (for example, Patent Document 1).

  In the flying insect trap according to Patent Document 1, the container is colored green. It is described that this improves the attractiveness of flying insects visually.

JP 2003-153645 A

  However, the color preference of flying insects is often unclear. Therefore, the visual attraction effect is still under development and there is room for further improvement.

  This invention is made | formed in view of this point, The place made into the objective is to improve the attracting effect of a flying insect with the color of the trap for flying insects.

  The present invention is directed to a flying insect trap for catching flying insects. The flying insect trap is provided with a trap body including a green or blue portion and a black portion.

  According to the above configuration, more flying insects can be attracted to the trap body as compared with the case where the trap body is colored in a single color of green, blue, or black.

  Further, the trap main body may be a container in which an inlet to the inside is formed.

  Furthermore, it is preferable that the peripheral part of the inlet is colored at least one of green, blue and black.

  According to the above configuration, the flying insect attracted to the container by constructing the container including the green or blue portion and the black portion is further attracted to the entrance of the container, and the flying insect is introduced into the container from the entrance. Can be urged to enter.

  Furthermore, it is preferable that the trap body has a boundary line formed by a green or blue portion and a black portion.

  In the trap body, a higher attraction effect can be exhibited when the green or blue portion and the black portion are adjacent to each other than when they are separated from each other.

  According to the present invention, it is possible to dramatically improve the attracting effect of flying insects by configuring the trap body including a green or blue portion and a black portion.

It is a perspective view of the trap for flying insects concerning Embodiment 1 of the present invention. It is a front view of the trap for flying insects. It is a top view of the trap for flying insects. It is sectional drawing in the IV-IV line of FIG. It is sectional drawing in the VV line of FIG. It is a perspective view of the trap for flying insects concerning a modification. It is a longitudinal cross-sectional view of the trap for flying insects which concerns on a modification. 6 is a front view of a flying insect trap according to Embodiment 2. FIG. It is a front view of the trap for flying insects concerning Embodiment 2 which has another color pattern. It is a perspective view of the trap for flying insects concerning a modification. 6 is an explanatory diagram showing test conditions for Test 1. FIG. It is a graph which shows the color preference of Drosophila melanogaster. 6 is a perspective view showing a test piece used in Test 2. FIG. It is a side view of a test piece. 6 is an explanatory diagram showing test conditions for Test 2. FIG. 6 is a graph showing the test results of Test 2. 6 is a graph showing test results of Test 3. 10 is a graph showing test results of Test 4. 10 is a graph showing a test result of Test 5. 10 is a graph showing test results of Test 6. 10 is a graph showing test results of Test 7. It is a top view which shows the test piece used for Test 8, (A) is a black test piece of the whole surface, (B) is a test piece color-coded into black and green, and (C) is a black part. The test piece in which the white strip | belt-shaped part was formed between the green parts is shown. 10 is a graph showing test results of test 8.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Embodiment 1 of the Invention
FIG. 1 is a perspective view of a flying insect trap 1 according to an exemplary embodiment 1 of the present invention, FIG. 2 is a front view of the flying insect trap 1, and FIG. 3 is a plan view of the flying insect trap 1. 4 is a sectional view taken along line IV-IV in FIG. 3, and FIG. 5 is a sectional view taken along line VV in FIG.

  A flying insect trap (hereinafter also simply referred to as “capture device”) 1 includes a lower container 2 and an upper container 3 attached to the lower container 2. The lower container 2 and the upper container 3 constitute a container, that is, a trap body.

  The lower container 2 is a bottomed cylindrical container, and includes a circular bottom wall 21, a cylindrical inner wall 22 standing on the periphery of the bottom wall 21, and a cone that extends downward from the upper end of the inner wall 22. It has an outer wall 23 in the shape of a side surface of the base and a columnar column 24 erected at the center of the bottom wall 21. The lower container 2 opens upward at the upper end of the inner wall 22. On the outer peripheral surface of the outer wall 23, a plurality of vertical grooves 23a, 23a,... Extending along the generatrix of the truncated cone are continuously formed in the circumferential direction. A diameter-reduced portion 24 a having an outer diameter smaller than that of the other portions is provided at the distal end portion of the support column 24. An annular drug-impregnated mat 25 is accommodated in the lower container 2. The drug-impregnated mat 25 is placed on the bottom wall 21 in a state in which a column 24 is passed through a central opening. The drug-impregnated mat 25 is, for example, a nonwoven fabric and is impregnated with an attractant and an insecticide.

  The upper container 3 has a substantially cylindrical peripheral wall 31 and an upper wall 32 connected to the upper end edge of the peripheral wall 31. The upper container 3 opens downward at the lower end of the peripheral wall 31. The peripheral wall 31 spreads gently downward. The inner diameter of the lower end edge of the peripheral wall 31 is larger than the outer diameter of the upper end edge of the lower container 2. The upper wall 32 is formed in a mortar shape or a funnel shape, and is recessed downward from the upper end edge of the peripheral wall 31 toward the center. A plurality of upper inlets 32a, 32a,... Are formed through the upper wall 32 so as to be spaced apart from each other and arranged in the circumferential direction. The central portion 32b of the upper wall 32 extends downward while being depressed, and is formed in a substantially cylindrical shape. The upper container 3 is attached to the lower container 2 by fitting the lower end of the center part 32 b into the reduced diameter part 24 a of the support column 24 of the lower container 2.

  In a state where the upper container 3 is attached to the lower container 2, a gap is formed between the lower end edge of the peripheral wall 31 of the upper container 3 and the upper end edge of the outer wall 23 of the lower container 2. This gap is formed over the entire circumference of the lower container 2 and the upper container 3. The lower inlet 33 is constituted by this gap. That is, the trap 1 has two upper inlets 32 a, 32 a,... Provided on the upper wall 32 of the upper container 3 and a lower inlet 33 formed between the lower edge of the upper container 3 and the lower container 2. Has a kind of entrance. That is, the flying insect stays on the upper wall 32 of the upper container 3 and then enters the trap 1 from the upper inlet 32a of the upper wall 32 or stops on the outer wall 23 of the lower container 2 and then the outer wall. 23 is climbed up and enters the trap 1 from the lower entrance 33. In the trap 1, flying insects are attracted to the drug-impregnated mat 25 or fly around the trap 1. These upper inlet 32a and lower inlet 33 constitute the inlet.

  In addition, the dimension of the lower inlet 33 changes with flying insects to capture. For example, 3 mm or more and 10 mm or less is preferable for flies and fruit flies, and 10 mm or more and 20 mm or less is preferable for bees. By setting the lower inlet 33 to such a size, flying insects can climb up the outer wall 23 of the lower container 2 and easily enter the trap 1 from the lower inlet 33. On the other hand, for flying insects flying around the trap 1, the size of the lower inlet 33 is too small to jump into the trap 1. In other words, the lower entrance 33 is easy to enter by flying insects and difficult to exit.

  In the trap 1 configured as described above, the lower container 2 is colored black and the upper container 3 is colored green. Here, green means a color corresponding to 1GY to 10BG in the hue of the Munsell system.

  Thus, by coloring the trap 1 in black and green, the attractiveness of flying insects can be improved. In the first place, black and green have a high attractiveness even in a single color. However, by combining these, the attractiveness can be drastically improved compared to the case of a single color.

  Further, the peripheral portions of the upper inlets 32a, 32a,... Are colored green, and the peripheral portions of the lower inlet 33 are colored black (lower container 2) and green (upper container 3). By coloring the peripheral portion of the upper inlet 32a, 32a,... And the peripheral portion of the lower inlet 33 with at least one of black and green, the flying insects that have come to the trap 1 are allowed to enter the upper inlet 32a, 32a,. It can be attracted to the entrance 33 to prompt entry into the trap 1. That is, as described above, flying insects that are located away from the trap 1 are attracted to the trap 1 by coloring the trap 1 in green and black, and in addition, the entrance of the trap 1 is It can be further attracted to the entrance of the trap 1 by coloring with at least one of black and green. Thereby, the capture rate of the trap 1 can be further improved.

  Furthermore, the trap 1 has a boundary line formed by a black portion and a green portion. The presence of this boundary line, that is, a portion where black and green are switched, can further improve the attractiveness of flying insects.

-Modification-
Next, a modified example of the trap will be described with reference to FIGS. FIG. 6 is a perspective view of a flying insect trap according to the modification, and FIG. 7 is a longitudinal sectional view of the flying insect trap according to the modification.

  A trap 201 according to the modification includes a lower container 202 and an upper container 203 attached to the lower container 202. The lower container 202 and the upper container 203 constitute a container, that is, a trap body.

  The lower container 202 is a bottomed cylindrical container, and includes a circular bottom wall 221 and a cylindrical peripheral wall 222 erected on the periphery of the bottom wall 221. The lower container 202 opens upward at the upper end of the peripheral wall 222. A disc-shaped drug-impregnated mat 225 is placed on the bottom wall 221 of the lower container 202. The drug-impregnated mat 225 is, for example, a nonwoven fabric and is impregnated with an attractant and an insecticide.

  The upper container 203 is a lid-like member having a circular shape in plan view, and has a short cylindrical peripheral wall 231 and an upper wall 232 connected to the upper end edge of the peripheral wall 231. The upper container 203 opens downward at the lower end of the peripheral wall 231. The lower end edge of the peripheral wall 231 is fitted into the upper end edge of the peripheral wall 222 of the lower container 202. That is, the upper container 203 is attached to the lower container 202 by fitting the lower end edge of the peripheral wall 231 into the upper end edge of the peripheral wall 222 of the lower container 202. A recessed portion 233 that is recessed toward the lower container 202 is formed at the center of the upper wall 232. The depressed portion 233 has a bottom portion 233 a and a peripheral wall portion 233 b that connects the bottom portion 233 a and the upper wall 232. The bottom portion 233a has a substantially spherical shape with a high central portion and a low peripheral portion. Further, seven inlets 233c, 233c,... Are formed through the bottom 233a. Specifically, one relatively large diameter inlet 233c is formed at the center of the bottom 233a, and six relatively small diameter inlets 233c, 233c,... Are formed so as to surround the large diameter inlet 233c. On the peripheral wall portion 233b, convex portions 233d projecting radially inward of the upper container 203 and concave portions 233e recessed outward in the radial direction are alternately formed in the circumferential direction of the upper container 203. Further, the peripheral wall portion 233b including the convex portion 233d and the concave portion 233e is inclined so as to open outward as it moves upward.

  In the trap 201 configured as described above, the lower container 202 is colored green and the upper container 203 is colored black. Here, green includes a color corresponding to 1GY to 10BG in the hue of the Munsell system.

  Thus, by coloring the trap 201 in black and green, the attractiveness of flying insects can be improved dramatically.

  That is, a flying insect at a location away from the catcher 201 is attracted to two colors, black and green, when the catcher 201 is visually recognized, and flies to the catcher 201. The flying insect staying in the trap 201 is attracted by the drug-impregnated mat 225 and proceeds to the inlet 233c of the upper container 203. At this time, since the portion around the inlet 233c of the upper container 203 is colored in black, flying insects staying in the trap 201 can be smoothly guided to the inlet 233c. In addition, since the peripheral wall portion 233b of the upper container 203 is inclined so as to open outward as it moves upward, flying insects can easily enter the depressed portion 233. The flying insect that has entered the depressed portion 233 of the upper container 203 moves around in the depressed portion 233, and is eventually attracted by the drug-impregnated mat 225 and enters the trap 201 from the inlet 233c. In the trap 201, flying insects are attracted to the drug-impregnated mat 225 or fly around the trap 201.

  In the trap 1, the lower container 2 is colored black and the upper container 3 is colored green. However, the present invention is not limited to this. Similarly, in the trap 201, the lower container 202 is colored green and the upper container 203 is colored black. However, the present invention is not limited to this. That is, a part colored in black exists in a part of the catchers 1 and 201, and a part colored in green should just exist in another part. For example, the color is not limited to the lower container 2 202 and the upper container 3 203, but the lower container 2 202 is colored black and green, and the upper container 3 203 is colored black and green. Also good. In other words, in the configuration in which the traps 1, 201 are colored black and green, the lower container 2, 202 and the upper container 3, 203, which are separated into different members, are colored in black or green, respectively. However, the present invention is not limited to this. Furthermore, the lower containers 2 and 202 may be colored in an arbitrary color or a plurality of colors, and the upper containers 3 and 203 may be colored in black and green. Thus, any color scheme can be adopted as long as the catchers 1 and 201 include a black portion and a green portion.

  Moreover, the shape of a black part and a green part can also be made into arbitrary shapes. For example, a black or green portion may be formed in a stripe shape or a spot shape.

  Furthermore, the green colored portions of the traps 1, 201 may be colored blue. Here, blue includes colors corresponding to 1BG to 5PB in the hue of the Munsell system. Furthermore, it is preferable to color the color in the range of 1B to 10B in the hue of the Munsell system. That is, the upper container 3 only needs to be colored green to blue (1GY to 5PB (more preferably, 1GY to 10B) in terms of the Munsell system hue).

  In the present embodiment, diurnal flying insects are targeted as flying insects, and specifically, bees, flies (such as house flies, fungi, butterflies, etc.), and flies (Drosophila, Mushroom flies, fleas, etc.).

<< Embodiment 2 of the Invention >>
Next, an exemplary embodiment 2 of the present invention will be described with reference to FIG. FIG. 8 is a front view of the trap 301 according to the second embodiment. The trap 301 is different from the traps 1, 201 according to the first embodiment in that the flying insect is captured by the adhesive layer.

  Specifically, the trap 301 includes a ribbon-like pressure-sensitive adhesive sheet 302 having flexibility. This adhesive sheet 302 constitutes the trap body. For example, the trap 301 is installed in a suspended state in a greenhouse or a factory.

  The adhesive sheet 302 is formed in a rectangular shape. A reinforcing member 303 for strapping is provided at one end in the longitudinal direction of the adhesive sheet 302. In the reinforcing member 303, a through hole for stringing is formed at the center position in the short direction of the adhesive sheet 302. A string 304 is hung on the through hole. The reinforcing member 303 may be omitted if there is no need for reinforcement. In that case, a through hole is formed in the adhesive sheet 302, and a string is hung on the through hole.

  Black and green stripes are drawn on the front and back surfaces of the adhesive sheet 302. Specifically, on the front and back surfaces of the pressure-sensitive adhesive sheet 302, black portions 305 and green portions 306 are alternately drawn in stripes inclined with respect to the longitudinal direction of the pressure-sensitive adhesive sheet 302. In addition, a transparent adhesive layer is provided on the front and back surfaces of the adhesive sheet 302.

  In this way, by coloring the trap 301 in black and green, it is possible to dramatically improve the attractiveness of the flying insects visually. That is, when a flying insect present at a place away from the trap 301 visually recognizes the adhesive sheet 302 of the trap 301, it is attracted to two colors, black and green, and flies to the trap 301 and stays on the adhesive sheet 302. Since the adhesive layer is provided on the surface layer of the adhesive sheet 302, flying insects are captured by the adhesive layer.

  Note that the adhesive sheet 302 may be a plate-like member. Moreover, the adhesive sheet 302 is not limited to a rectangular shape, and any shape can be adopted. Further, the color arrangement pattern of the adhesive sheet 302, that is, the color pattern is not limited to the above configuration. For example, as shown in FIG. 9, an adhesive sheet 302 may be formed, and a green polka dot pattern 306 may be formed on a black background 305. Furthermore, the adhesive sheet 302 may include other colors as long as it includes a black portion and a green portion.

-Modification-
Next, a modification of the second embodiment will be described with reference to FIG. The trap 401 according to the modification of the second embodiment is different from the trap 301 in that it is not a suspension type but a placement type.

  Specifically, the trap 401 includes a plate-like adhesive sheet 402. This adhesive sheet 402 constitutes the trap body. For example, the trap 401 is placed on a table or floor in a greenhouse or factory.

  The adhesive sheet 402 is formed in a rectangular shape. The surface of the pressure-sensitive adhesive sheet 402 (the surface facing upward (outward) when placed) is composed of a black portion 403 on one side in the longitudinal direction and a green portion 404 on the other side in the longitudinal direction. ing. In addition, a transparent adhesive layer is provided on the surface layer of the adhesive sheet 402.

  In this way, by coloring the trap 401 in black and green, the attractiveness of flying insects can be greatly improved. That is, when a flying insect present at a place away from the catcher 401 visually recognizes the adhesive sheet 402 of the catcher 401, it is attracted to two colors, black and green, and flies to the catcher 401 and stays on the adhesive sheet 402. Since the adhesive layer is provided on the surface layer of the adhesive sheet 402, flying insects are captured by the adhesive layer.

  The pressure-sensitive adhesive sheet 402 may be a ribbon-like (tape-like) member having flexibility instead of a plate-like shape. The shape of the adhesive sheet 402 is not limited to a rectangular shape, and can be formed in an arbitrary shape. Further, the color arrangement pattern of the adhesive sheet 402, that is, the color pattern is not limited to the above configuration. For example, a color arrangement pattern such as the pressure-sensitive adhesive sheet 302 shown in FIGS. 8 and 9 may be used, and an arbitrary color arrangement pattern can be adopted. Furthermore, as long as the adhesive sheet 402 includes a black portion and a green portion, the adhesive sheet 402 may include other colors.

In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or its use.
<Example>
Next, examples will be described.

-Test 1
First, the color preference of flying insects was investigated under various illumination conditions. Specifically, as shown in FIG. 11, a desk 110 having a height of 70 cm is placed in a test room 100 having a width of 3.7 m, a depth of 3.7 m, and a height of 2.5 m, and test pieces 4 and 4 colored in various colors. Are placed on the desk 110. Two window glasses 120 and 120 are provided on one side wall of the test chamber 100. Sunlight enters the test chamber 100 through the window glasses 120 and 120. The desk 110 is arranged close to the side wall on which the window glasses 120 and 120 are provided. The test piece 4 is impregnated with a transparent plastic plate, 10 cm × 10 cm color drawing paper (New Color R (manufactured by Lintec)) standing upright on the plastic plate, and placed on the plastic plate. It is composed of absorbent cotton (not shown). Blue (4NCR-239 [10B]), orange (4NCR-213 [5YR]), red (4NCR-317 [5R]), yellow (4NCR-108 [5Y]), green (4NCR-321 [5G]), Six types of test pieces 4, 4,... Were prepared using six types of black (4NCR-418) color drawing paper. The symbol in () is the model number of the new color R, and the symbol in [] represents the hue of the Munsell system. Absorbent cotton is impregnated with 1.0 g of apple vinegar (manufactured by Otafuku) as an attractant, and has a size of 1.5 cm × 1.5 cm in plan view.

  As flying insects, adults of Drosophila melanogaster were used. Drosophila melanogaster was collected in Hatsukaichi City, Hiroshima Prefecture in 2008, and a strain that has been bred for generations using Satsuma mandarin is used. The breeding and release tests were performed in a room at 25 ° C.

  Release 100 Drosophila in total from 50 at two locations in the test room 100 at the same time, and count the number of Drosophila melanogaster (ie, invitations) that have settled on the test pieces 4, 4,. did. Moreover, the illumination intensity in the test chamber 100 at this time was measured. During the test, the lighting was not turned on and the natural light was left as it was. Then, on the desk 110, the illuminance was measured using a digital illuminometer (LX1102, manufactured by Tokyo Glass Instrument Co., Ltd.). The illuminance measurement was performed twice immediately before the start of the test and 30 minutes after the start, and the average value was calculated as the illuminance in each test.

  Such a test was performed several times. For each test, the attractant of each test piece 4 was replaced with a new one, and the installation positions of the test pieces 4, 4,. The attracted arguments were summed every 500 lux, and the equivalence of the number of close to each color was tested using Pearson's chi-square method between each illuminance group. SPSS 11.0 for Windows (SPSS Inc., Cary, NC, USA) was used for all statistical analyses.

  FIG. 12 shows the result (Drawing ratio of Drosophila melanogaster). There was a significant difference under each illuminance (a different alphabet on the right side of the graph indicates a significant difference). Of the numbers on the right side of each graph, the value of n indicates the number of tests, the denominator of the fraction indicates the total number of Drosophila melanogaster subjected to the test, and the numerator of the fraction approaches one of the test pieces 4. Shows the total number of Drosophila melanogaster. As can be seen from FIG. 12, black exhibits a high attraction effect under any illuminance conditions. In particular, at high illuminance, many Drosophila melanogaster are attracted. Green also exhibits a certain degree of attracting effect under any illuminance conditions. Above 1500 lux, most Drosophila melanogaster leans against the black or green specimens 4,4. Orange, yellow, and red show a certain degree of attracting effect under an environment of less than 1500 lux, but hardly show an attracting effect under an environment of 1500 lux or more. Blue shows an attractive effect to some extent under an environment of less than 1500 lux, and shows an attractive effect, albeit a little, even under an environment of 1500 lux or more and less than 2000 lux. Taken together, black and green are considered to exert the effect of attracting Drosophila melanogaster over a wide illuminance range. Furthermore, blue is also considered to exert the effect of attracting Drosophila melanogaster in a wider illuminance range than orange, yellow and red.

-Test 2-
Next, we investigated the attracting effect of flying insects when another color was combined with black, which has a high attracting effect. Specifically, a white shoji paper 130 of 55 cm × 28 cm as shown in FIG. 15 is placed on the desk 110 of the test room 100, and two test pieces 5 a and 5 b ( When the two test pieces are not distinguished, they are simply referred to as “test piece 5”). As shown in FIGS. 13 and 14, the test piece 5 has a circular pedestal 51 with a radius of 5 cm, a semicircular vertical wall 52 with a radius of 5 cm, standing at a position passing through the center of the pedestal 51, and an attractant. It has absorbent cotton 53 that is impregnated and placed on the pedestal 51. The absorbent cotton 53 is impregnated with 1.0 g of apple cider vinegar (manufactured by Otafuku Co., Ltd.) as an attractant, as in Test 1, and has a size of 1.5 cm × 1.5 cm in plan view. Test piece 5 was made of the same color paper as in Test 1. One test piece 5a was made of black color paper, and the other test piece 5b was made of green color paper. Then, the test was performed by changing the color pattern of the other test piece 5b in various ways. Specifically, as the test piece 5b, those prepared only with color papers of each color of white, yellow, red, blue and green, and each color of white, yellow, red, blue and green and black A total of 10 types were produced, including those in combination. A test piece 5b in which black, white, yellow, red, blue, and green are combined with each other is formed of black color drawing paper in which one semicircle portion divided by the vertical wall 52 of the pedestal 51 is formed on the other side. The semicircular portion is formed of any one of white, yellow, red, blue and green color paper. Further, a surface of the vertical wall 52 adjacent to the black portion of the pedestal 51 is formed of black color drawing paper, and a portion of the vertical wall 52 of any one of white, yellow, red, blue and green of the pedestal 51 is formed. The surface adjacent to the pedestal 51 is formed of color drawing paper of the same color as the pedestal 51. That is, the vertical wall 52 is formed by pasting black color image paper and any one of white, yellow, red, blue, and green color image paper. The test pieces 5a and 5b configured as described above are placed at a substantially central position of the shoji paper 130 with an interval of 40 cm.

  As flying insects, the same adult Drosophila melanogaster as in Test 1 was used. Then, 100 Drosophila in total, 50 from each of the two locations in the test room 100, are released at the same time, and the number of Drosophila melanogaster (that is, invitations) that have settled on the test pieces 5a and 5b is counted 30 minutes after the start. did. Further, the illuminance in the test chamber 100 at this time was constant at about 2000 lux. The measurement of illuminance is the same as in Test 1.

  Such a test was performed by fixing the test piece 5a and changing the type of the test piece 5b. In each test, the attractant of the test pieces 5a and 5b was replaced with a new one, and the test was performed. In each test, the number of Drosophila melanogaster leaning on the black test piece 5a was defined as 100, and the ratio of the number of Drosophila melanogaster leaning on the other test piece 5b was calculated. The test was performed six times for each test piece 5b, and the average of them was used as the argument ratio of the test piece 5b.

  The result is shown in FIG. As can be seen from FIG. 16, in the monochromatic test piece, the black test piece has a higher attracting effect than white, yellow, red, blue or green.

  For test pieces that combine black and other colors, the combination of black and white, black and yellow, and black and red is more attractive than the single color test pieces of white, yellow, and red. Although the effect is improved, the attraction effect is reduced compared to the black single-color test piece. That is, when black is combined with white, yellow, or red, it can be seen that an attraction effect between the attraction effect of the black test piece and the attraction effect of the white, yellow, or red test piece is exhibited.

  On the other hand, the combination of black and green and black and blue improves the attracting effect compared to the single color test of green and blue, and the attracting effect is much better than the black specimen. It has improved. That is, from the results of white, yellow, and red, it is expected that when black and green or blue are combined, an attraction effect is obtained between the black test piece and the green or blue test piece. However, contrary to expectation, when black and green or blue were combined, the attraction effect beyond the attraction effect of the black-colored test piece was exhibited.

-Test 3-
Subsequently, for the combination of black and green and black and blue, the effect of attracting flying insects when the hue of green or blue was changed was investigated. Specifically, as in Test 2, a plurality of types of test pieces 5 as shown in FIGS. The test piece produced the test piece 5a of black one color, and the test piece 5b which combined green or blue and black. Similarly to the test piece 2, the test piece 5b is configured such that half of the pedestal 51 is black and the other half is green or blue, and one surface of the vertical wall 52 is black and the other surface is green or blue. ing. Moreover, the test piece 5b produced the various test pieces from which the hue of green or blue differs. Specifically, half (5Y), yellow-green (1GY), green (5G), blue-green (10BG), blue (5B), blue (10B), blue-violet (10PB) color image paper is used for half of the test piece. The test piece 5b produced in step 1 was prepared. The symbol in parentheses represents the hue of the Munsell system. Similarly to the test 2, the test piece 5 is provided with absorbent cotton impregnated with 1.0 g of cider vinegar (manufactured by Otafuku). Then, as in Test 2, a 55 cm × 28 cm white shoji paper 130 as shown in FIG. 15 is placed on the desk 110 in the test room 100, and two tests are performed on the shoji paper 130. A piece was placed. One test piece is fixed with a test piece 5a composed of one black color, and the other test piece is yellow (5Y), yellow-green (1GY), blue-green (10BG), blue (5B), blue (10B ), A test sample 5b in which any one of blue purple (10PB) and black were combined was variously tested. For each test, the test piece was replaced with a new one.

  As flying insects, the same adult Drosophila melanogaster as in Test 1 was used. Then, 100 Drosophila in total, 50 from each of the two locations in the test room 100, are released at the same time, and the number of Drosophila melanogaster (that is, invitations) that have settled on the test pieces 5a and 5b is counted 30 minutes after the start. did. Further, the illuminance in the test chamber 100 at this time was constant at about 550 lux. The measurement of illuminance is the same as in Test 1.

  In each test, the number of Drosophila melanogaster leaning on the black test piece 5a was defined as 100, and the ratio of the number of Drosophila melanogaster leaning on the other test piece 5b was calculated. The test was performed six times for each test piece 5b, and the average of them was used as the argument ratio of the test piece 5b.

  The result is shown in FIG. In FIG. 17, the hue name of the Munsell system corresponding to the hue name is shown. As can be seen from FIG. 17, it is not limited to 5G or 10B, and even if it is a combination of 1GY (yellowish green), 10BG (blue green) or 5B (blue) and black, it is higher than a black single-color test piece. It can be seen that it has an attractive effect. That is, a green color including 1GY to 10BG (in other words, green) or a blue color including 1B to 10B (preferably 5B to 10B) (in other words, blue) By combining with black, the attracting effect of flying insects can be dramatically improved. In the Munsell system, green and blue are adjacent to each other and the hue changes continuously. Therefore, the attracting effect of flying insects can be drastically improved by combining any color in the range from green to blue, that is, 1GY to 10B and black.

-Test 4-
Therefore, not the test piece but the trap 1 was colored and the effect of attracting flying insects was examined. Specifically, the upper container 3 is colored black, and the lower container 2 is prepared with five types of traps 1 colored white, green (5GY), orange (5YR), red (5R) and black, respectively. An attraction test for Drosophila melanogaster was conducted. The symbol in () represents the hue of the Munsell system. The drug-impregnated mat 25 was impregnated with 18.5 g of red vinegar (manufactured by Otafuku). Two traps 1 and 1 were placed on the desk 110 of the test chamber 100 similar to the test 1, and the test was performed. One catcher 1 is fixed with the upper container 3 colored black and the lower container 2 colored white, and the other catcher 1 with the upper container 3 black and the lower container 2 green, orange, red The test was carried out by changing the color of each of the black colors. The illuminance was about 2000 lux. The method for measuring the illuminance is the same as in Test 1.

  As flying insects, the same adult Drosophila melanogaster as in Test 1 was used. Then, a total of 100 Drosophila shoots were released simultaneously from two locations in the test room 100, and the number of Drosophila melanogaster captured in the traps 1, 1 after 30 minutes (ie, the number of captures) was counted.

  Such a test was performed by changing the type of the other trap. For each test, the test was conducted by replacing the drug-impregnated mat 25 of the traps 1 and 1 with a new one. In each test, assuming that the number of Drosophila melanogaster captured by the black and white trap 1 was 100, the ratio of the number of Drosophila melanogaster captured by the other trap 1 was calculated. The black and green traps were tested 8 times, the black and orange traps 4 times, the black and red traps 2 times, and the black and black traps 2 times. Each test result was averaged to obtain the capture number ratio of each trap to the black and white trap.

  The result is shown in FIG. As can be seen from FIG. 18, only the black and green traps have a higher capture ratio than the black and black traps, that is, the black traps. Thus, the same result as the test piece was obtained not in the test piece but in the actual trap.

-Test 5-
Next, it was investigated which of the lower container 2 and the upper container 3 of the trap 1 is preferably colored black or green. Specifically, both the lower container 2 and the upper container 3 are black catchers 1, the lower container 2 is green (5GY), the upper container 3 is black catcher 1, the lower container 2 is black, and the upper container 3 is green. A (5GY) trap 1 was prepared. The symbol in () represents the hue of the Munsell system. The drug-impregnated mat 25 was impregnated with 18.5 g of red vinegar (manufactured by Otafuku). Two traps 1 and 1 were placed on the desk 110 of the test chamber 100 similar to the test 1, and the test was performed. One catcher 1 is fixed with both the lower container 2 and the upper container 3 being black, and the other catcher 1 is such that the lower container 2 is green and the upper container 3 is black and the lower container 2 is black. Then, the test was conducted by changing the upper container 3 with a green one. The illuminance was about 550 lux. The method for measuring the illuminance is the same as in Test 1.

  As flying insects, the same adult Drosophila melanogaster as in Test 1 was used. Then, a total of 100 Drosophila shoots were released simultaneously from two locations in the test room 100, and the number of Drosophila melanogaster captured in the traps 1, 1 after 30 minutes (ie, the number of captures) was counted.

  Such a test was performed by changing the type of the other trap. For each test, the test was conducted by replacing the drug-impregnated mat 25 of the traps 1 and 1 with a new one. In each test, the number of Drosophila trapped in the other trap 1 is calculated by setting the number of Drosophila trapped in the black trap 1 in both the lower container 2 and the upper container 3 as 100. did. By performing the test eight times for each trap 1 and averaging them, both the lower container 2 and the upper container 3 have a capture ratio of each trap to the black trap.

  The result is shown in FIG. As can be seen from FIG. 19, it can be seen that the capture ratio does not change regardless of which of the lower container 2 and the upper container 3 is black and which is green.

-Test 6
Subsequently, the difference in the attracting effect between the portions colored in black and green was examined. Specifically, the trap 201 was colored in various patterns using black and green. Specifically, the catcher 201 colored in black, the catcher 201 colored in green (5G), and one area when divided vertically into black and the other as green (5G) A colored catcher 201, a lower container 202 black and an upper container 203 colored green (5G); a lower container 202 green (5G) and an upper container 203 colored black; The five types of traps 201 were prepared. The symbol in () represents the hue of the Munsell system. The drug impregnated mat 225 was impregnated with 18.5 g of red vinegar (manufactured by Otafuku). A table 110 was placed at one of the four corners of the test chamber 100 similar to that in Test 1, and two traps 201 and 201 were placed on the table 110 for testing. One catcher 201 was fixed with a catcher 201 colored in black, and the other catcher 201 was tested with the remaining four kinds of catchers 201. In each test, the test was performed by replacing the drug impregnated mat 225 of the traps 201 and 201 with a new one. The illuminance was about 550 lux. The method for measuring the illuminance is the same as in Test 1.

  As flying insects, the same adult Drosophila melanogaster as in Test 1 was used. Then, release 100 Drosophila from the corner of the test room 100 where the desk 110 is placed, and the number of Drosophila captured by the traps 201 and 201 30 minutes after the start (ie, The number of captures was counted.

  In each test, assuming that the number of Drosophila melanogaster captured by the black-colored trap 201 was 100, the ratio of the number of Drosophila melanogaster captured by the other trap 201 was calculated. The test was performed 6 times for each trap 201, and the results were averaged to obtain the ratio of the number of traps of each trap to the trap of black.

  The result is shown in FIG. As can be seen from FIG. 20, the catcher 201 colored with black and green shows a higher attracting effect than the catcher 201 with a single color regardless of the coloring pattern. Further, it can be seen that the attracting effect is the same regardless of which of the lower container 202 and the upper container 203 is colored green and which is colored black. In the upper container 203, inlets 233c, 233c,... Are formed. That is, it can be seen that the attracting effect is substantially the same regardless of whether the peripheral portions of the inlets 233c, 233c,. Furthermore, it can be seen that the attracting effect is higher when the catcher 201 is color-coded in the left and right directions than in the black and green colors. This is considered to be because the upper container 203 in which the inlets 233c, 233c,... Are formed is colored black and green. That is, when the peripheral portion of the entrances 233c, 233c,... Is colored in black or green, the flying insects are more effective up to the entrances 233c, 233c,. It can be attracted and the capture rate can be improved.

-Test 7-
Next, the difference in the attracting effect when the trap 201 was colored with black, green, and other third colors was examined. Specifically, the black-colored capture device 201 and the lower container 202 are colored in red (5R), and one area divided into the vertical half of the upper container 203 is black, and the other area is colored green (5G). There are three types: a container 201 and a trap 201 which is divided into one half of the lower half of the lower container 202 in black and the other in green (5G) and the upper container 203 in red (5R). A trap 201 was prepared. The symbol in () represents the hue of the Munsell system. The drug impregnated mat 225 was impregnated with 18.5 g of red vinegar (manufactured by Otafuku). A table 110 was placed at one of the four corners of the test chamber 100 similar to that in Test 1, and two traps 201 and 201 were placed on the table 110 for testing. One catcher 201 was fixed by a catcher 201 colored in black, and the other catcher 201 was tested by changing the remaining two kinds of catchers 201. In each test, the test was performed by replacing the drug impregnated mat 225 of the traps 201 and 201 with a new one. The illuminance was about 550 lux. The method for measuring the illuminance is the same as in Test 1.

  As flying insects, the same adult Drosophila melanogaster as in Test 1 was used. Then, release 100 Drosophila from the corner of the test room 100 where the desk 110 was placed, and the number of Drosophila captured by the traps 201 and 201 30 minutes after the start (ie, The number of captures was counted.

  In each test, assuming that the number of Drosophila melanogaster captured by the black-colored trap 201 was 100, the ratio of the number of Drosophila melanogaster captured by the other trap 201 was calculated. The test was performed 6 times for each trap 201, and the results were averaged to obtain the ratio of the number of traps of each trap to the trap of black.

  The result is shown in FIG. As can be seen from FIG. 21, even when the catcher 201 is colored with black and green and the third color other than that, the catcher 201 shows a higher attraction effect than the catcher 201 with a single color black. Recognize. However, it can be seen that the attraction effect is higher when the upper container 203 is colored with black and green than when the upper container 203 is colored with the third color. This is probably because the upper container 203 has inlets 233c, 233c,..., And the peripheral portions of these inlets 233c, 233c,. Alternatively, the flying insects usually fly above the trap 201, and the upper container 203 is easier to visually recognize for these flying insects than the lower container 202. Therefore, it is considered that the effect of attracting flying insects is improved by coloring the upper container 203 with black and green.

-Test 8-
Next, we investigated the difference in attracting effect depending on the degree of approach between the black part and the green part of the trap. Specifically, circular test pieces 6A, 6B, and 6C having a radius of 5 cm as shown in FIG. 22 were prepared. The test piece 6A is composed of only the black portion 6a. The test piece 6B includes a semicircular black portion 6a and a semicircular green (5G) portion 6b. The test piece 6C is formed of a semicircular black portion 6a and a semicircular green (5G) portion 6b, and a strip-shaped white portion 6d along the boundary line between the black portion 6a and the green portion 6b. Is formed. In addition, the symbol in () represents the hue of the Munsell system. That is, the test piece 6B has a boundary line 6c formed by the black portion 6a and the green portion 6b (that is, the black portion 6a is present in one region across the boundary line 6c, and the other On the other hand, the test piece 6C has no boundary line formed by the black portion 6a and the green portion 6b (that is, the black portion 6a and the white portion 6b are present in the white area 6b). There is only a boundary line formed by the part 6d and a boundary line formed by the green part 6b and the white part 6d). Further, for the test piece 6C, three types of test pieces were prepared in which the width of the strip-shaped white portion 6d was changed to 1 mm, 5 mm, and 10 mm. Absorbent cotton impregnated with 1.0 g of apple vinegar (manufactured by Otafuku) similar to Test 2 was placed on the test pieces 6A, 6B, 6C. The desk 110 was placed near the side wall provided with the window glasses 120 and 120 in the same test room 100 as in the test 1, and two test pieces were placed on the desk 110 for testing. One test piece was fixed with a test piece 6A made of black color paper, and the other test piece was changed with the remaining four types of test pieces 6B and 6C. For each test, the absorbent cotton was replaced with a new one and tested. The illuminance was about 550 lux. The method for measuring the illuminance is the same as in Test 1.

  As flying insects, the same adult Drosophila melanogaster as in Test 1 was used. Then, a total of 100 Drosophila melanogaster was released simultaneously from two places in the test room 100, and the number of Drosophila melanogaster (that is, attracting arguments) that had settled on the test piece was counted 30 minutes after the start.

  In each test, the number of Drosophila melanogaster leaning on the black-colored test piece 6A was defined as 100, and the ratio of the number of Drosophila melanogaster leaning on the other test piece 6B, 6C was calculated. The test was performed six times for each of the test pieces 6B and 6C, and these were averaged to obtain an induction ratio of the test pieces 6B and 6C.

  The result is shown in FIG. As can be seen from FIG. 23, even in the test piece in which the strip-shaped white portion 6d exists (that is, the boundary line formed by the black portion 6a and the green portion 6b does not exist), the test piece is black and green. It can be seen that, as long as it is colored, it has a higher attracting effect than the black specimen. However, it can be seen that the attracting effect is higher when the width of the band-shaped white portion 6d is narrower. And it turns out that the test piece 6B in which the boundary line 6c formed by the black part 6a and the green part 6b exists shows the best attraction effect.

  In addition, since the same result has come out regardless of whether it is a test piece or the trap 1 from the result of the tests 2 and 4, even if it is the traps 301 and 401 with different configurations, the same as the tests 1 to 8 It is considered to be a result.

  As described above, the present invention is useful for a flying insect trap for catching flying insects.

1,201 Flying insect trap 2,202 Lower container (container, trap body)
3,203 Upper container (container, trap body)
32a Upper entrance (entrance)
33 Lower entrance (entrance)
233c Entrance 6a Black part 6b Green part 6c Boundary lines 302, 402 Adhesive sheet (capturer body)

Claims (5)

A flying insect trap that catches flying insects,
Trap for flying insects with a trap body including a part and a black part of the blue color. The flying insect trap according to claim 1,
The trap body is a trap for flying insects, which is a container in which an entrance to the inside is formed. The flying insect trap according to claim 2,
Peripheral portion of the inlet trap for flying insects that are colored in at least one blue and black. The flying insect trap according to any one of claims 1 to 3,
Said trap body, trap for flying insects that have boundaries formed by the parts and the black parts of the blue color. A flying insect trap that catches flying insects,
  Equipped with a trap body,
  The trap body has at least a portion in which an entrance into the trap body is formed;
  The part where the entrance is formed is a trap for a flying insect including a green or blue part and a black part.

Images