JPH08322448A - Insect catcher - Google Patents

Abstract

PURPOSE: To provide an insect catcher having such specific scheme as to direct the orientation of openings in wind direction at all times, high in insect-attractive efficiency due to efficient diffusion of an attractant inside the catcher, and capable of efficiently catching harmful insects due to its effect reaching far distant places. CONSTITUTION: This insect catcher is obtained by further installing a sail 4 with its longitudinal axis rectangular to the opening surfaces of openings 5 on a catcher equipped with a partition wall 7 with a falling port 8 in between an attracting section 2 having the openings 5 and catching section 3. Because the longitudinal axis of the sail 4 always orients in line with airflow direction, the opening surface rectangular to the longitudinal axis faces on airflow at all times. To catch insects, it is recommended that they are attracted by an attractant volatilized from an attracting agent put into the catching section 3 and the attracted insect are guided via the openings 5 into the inner space of the attracting section 2 and then guided via the falling port 8 into the inner space of the catching section 3 or to the attractant. For the size and shape of the sail 4, when the catcher is e.g. cylindrical with a weight of 300g, the sail may be semicircular with an area of 600cm<2> under a general airflow velocity of 1-5m/s.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an insect trap capable of efficiently trapping harmful insects such as wasps, paper wasps, flies, flies, chafers, and moths.

[0002]

2. Description of the Related Art Conventionally, as a method for catching harmful insects such as hornets, a method has been known in which an attractant is placed in a container, the insect is attracted by an attractant which is volatilized from this, and the insect is caught in the container. ing.

As an example of such a trap, the bee trap disclosed in Japanese Utility Model Publication No. 63-31574 is known. This bee trap is a container having a lateral opening in the upper part, and a neck part is provided in the middle so that the bee once inside cannot return. This bee trap is used with an attractant placed in the lower part of the container, and the bee that was invited by this attractant into the bee trap through the opening is unable to escape due to the neck part, causing starvation or drowning. It is structured to

In the insect trap, in order to improve the insect trapping efficiency, it is important not to let the trapped insects escape and to enhance the insect attracting efficiency. However, the structure of the conventional insect trap has been designed with an emphasis on not letting the trapped insects escape, and increasing the attraction efficiency is mainly due to the composition of the attractant such as adding an attractant such as a pheromone. Depended on.

[0005]

The use of the attractant is extremely effective for attracting insects, but the effective range is the range in which the attractant volatilizes and can be perceived by the insect. In the case of a limited number of insects, the effect of the insect trap was naturally limited. Therefore, there has been a demand for the development of a trap that can broaden the volatilization range of attractants and attract more harmful insects from a wider range and capture them.

[0006]

Means for Solving the Problems The inventors of the present invention have been earnestly researching an insect trap capable of attracting harmful insects from a wide range, and by keeping the direction of the opening always in the wind direction, The attractant inside the trap can be efficiently diffused to increase the attracting efficiency, and if this opening is provided at the front and back and a constant airflow is made to flow between them, the attractant can be more effectively volatilized. I found it. Furthermore, for some harmful insects such as bees, it has been found that the attraction / capture efficiency is further enhanced by coloring part or all of the trap with a color that alerts or warns the insect.

The present invention has been completed on the basis of the above-mentioned findings, and includes an attracting portion having one or two or more openings, a catching portion, and a fall portion that separates the attracting portion and the catching portion and communicates the spaces between them. An insect trap having a partition having a mouth, characterized in that a sail whose front and rear axes are substantially orthogonal to each other is provided on the opening surface of the opening.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail below with reference to the drawings. 1 to 3 are drawings showing one embodiment of the insect trap of the present invention, FIG. 1 is a front view, FIG. 2 is a side view, and FIG.
-A 'shows a cross-sectional view. In the figure, reference numeral 2 is an attracting portion, 3 is a catching portion, and the attracting portion 2 has a sail 4 and an opening 5.

The attracting portion 2 is, as shown in FIG.
1 and the space 11 communicates with the internal space 12 of the capture unit 3 via a drop opening 8 provided in the partition wall 7.

In the insect trap of the present invention, the sail 4
Is installed at an angle such that its front-rear axis is substantially orthogonal to the opening surface of the opening 5. Generally, it is preferable that the opening surface of 5 and the front-rear axis of 4 are 90 °. However, for example, when a plurality of opening portions are provided at one end of the cylindrical surface, it is inevitably deviated from this angle. Therefore, "almost orthogonal" means
This means that the angle may deviate from the angle of 90 ° by about ± 10 to 30 °.

The size (area) and shape of the sail 4 to be installed may be appropriately determined according to the weight of the trap and the strength of the air flow. For example, when the trap is a cylindrical type of about 300 g, under a general air flow with a wind speed of 1 to 5 m,
A semi-circular shape with an area of about 60 cm ² will provide a sufficient effect.

The mounting position of the sail 4 is not limited to the upper part of the insect trap 1 as shown in FIGS. 1 to 3, but may be any position such as the side surface or the lower part, and a plurality of sails can be attached. . Further, the sail may be integrally molded with the main body, or may be in a separable and removable state. Further, the shape thereof is not limited to the plate shape, and the cross section thereof may be a wedge shape or a streamline shape.

On the other hand, in the insect trap of the present invention, the opening portion 5 provided in the attracting portion 2 may be provided on only one side, but it is provided as a pair on the front and rear surfaces of the attracting portion 2 so that the air flow can pass through. Is more preferable. The size (inner diameter) of the opening 5 can be determined according to the type of insect.
For example, in the case of a wasp, the opening 5 is 25 to 37 m.
About m is preferable.

The partition wall 7 provided between the attracting section 2 and the catching section 3 plays a role of guiding insects to the catching section 3 through the drop opening 8 and not letting the insects once caught escape. is there. Therefore, the partition wall 7 may have a flat plate shape, but it is more preferable that the partition wall 7 has a shape projecting toward the capture unit 2 side at the drop port 8. Specifically, in addition to the shape as shown in FIG. 3, a funnel shape as shown in FIG.

The size (inner diameter) of the drop port 8 varies depending on the kind of insect, but it is preferable that the size is such that the insect cannot fly and pass. For example, in the case of a hornet, it is preferable that the diameter of the drop port is about 23 to 35 mm.

Further, the trapping portion 3 is a portion for injecting an attractant 9 into the lower part thereof and attracting / capturing insects by an attractant which volatilizes from this. That is, the insect attracted by the attractant that volatilizes from the attractant enters the internal space 11 of the attractor 3 through the opening 5 and is trapped in the internal space 12 of the catcher 3 or the attractant 9 through the drop opening 8. To be done.

The attractant 9 injected into the trap 3 can be prepared by using an attractant such as a pheromone or a fermented liquid depending on the type of insect to be trapped. In addition to the attractant, the attractant liquid 9 may contain an insecticidal component or the like, if necessary.

In the trap of the present invention, the attracting part 2 and the trapping part 3 may be molded integrally, but in consideration of the replacement of the attractant 9 and the removal of insect carcass, it is convenient to mold them separately. is there. For example, in the insect trap shown in FIGS. 1 to 3, the attracting part 2, the sail 4 and the partition wall 7 are integrally formed, and the catching part 2 is molded separably and can be coupled by screwing. Further, in some cases, the capturing unit 3 may be divided into two or more.
Furthermore, it is more convenient if the capture unit 3 is partially or entirely transparent or semi-transparent so that the capture state inside can be observed.

FIG. 5 is a view showing another embodiment of the insect trap of the present invention. In this embodiment, two openings 5 are present at one end in pairs with the openings at the other end, and both opening surfaces are orthogonal to the front-rear axis of the sail 4. The partition wall 7 has a funnel shape and projects toward the capture unit 3 side. In the insect trap of this aspect, since the opening is large, it is possible to volatilize a larger amount of attractant, and high trapping efficiency can be obtained.

When the insect trap of the present invention is used for certain insects, a part or all of the insect trap is colored with an insect warning color or a caution color (hereinafter referred to as "attracting color"). If it is set, the attraction efficiency is increased as a result of being attracted not only by the attractant but also by the visual sense.
In particular, it is more preferable to partially color the entire attracting portion or the periphery of the opening as shown in FIG.

The attracting color must be selected according to the type of insect. For example, in the case of the hornet, it is well known that it is attracted to black, but since it is considered that it cannot distinguish a color with a long wavelength and distinguish it from black, orange, vermilion of long-wavelength visible light other than black, A color such as brown or red is preferable.

The coloring method is not particularly limited, and for example, a colored material can be used, or it can be colored with a paint or a color tape.

As a general mode of use of the insect trap of the present invention, for example, a mode in which the insect trap is used by being hung on a branch of a tree or an eaves with good ventilation can be mentioned. However, if a rotating plate or the like is attached to the bottom of the device, it can be installed on the ground or the like.

[0024]

The insect trap according to the present invention utilizes the fact that the front-rear axis of the sail 4 is always oriented in the direction of the air flow, and the opening surface of the opening 5 which is orthogonal to the front-back axis always faces the air flow.

That is, referring to FIG. 3, since the opening surfaces 5a and 5b, which are substantially orthogonal to the longitudinal axis of 4, always face the air flow, regardless of the wind direction, they flow into the inner space of the attracting portion 2 through the opening 5a. The maximum air flow is. Then, the attractant that volatilizes from the attractant 9 is sucked into the inner space 11 of the 2 through the dropping port 8 and flows out from the opening 5b to the outside together with the air flow, so that the attractant is effectively volatilized and harmful insects Can be effectively attracted.

When part or all of the trap is colored with an attracting color such as a warning color or a reminder color, the attractive effect of sight is combined with the attracting substance to further enhance the attracting / capturing efficiency.

Next, the results of an insect trap test of the insect trap of the present invention will be shown.

Test Example 1 Sail installation effect test: colorless and transparent cylindrical plastic hornet trap (volume 750 m) as shown in FIGS.
l; opening area 7 cm ² ; drop opening area 7 cm ² ; sail area 75 cm ² ) 3 pieces each prepared by winding a red color tape with a width of 2 cm around the opening (invention products 1 to 3) were prepared. . On the other hand, as a control, the same plastic wasp trap 3 as the product of the present invention except that the sail is not attached.
Books were used (Comparative products 1-3). 100ml of the attractant solution prepared by mixing honey, sugar and sake at a ratio of 1: 2: 7 was put in each catcher, and a square beeyard (bee bee rearing office) with a length of 20 meters on each side was prepared. Three clothes hanging at each location were hung for three days, and the effect of attraction with or without a sail was compared. In addition,
The locations were rotated every four days so that the locations of the installations were not uneven, the number of wasps captured at that time was counted, and the same amount of attractant liquid was replaced in all the containers. The results are shown in Table 1.

[0029]

From this test example, it is clear that the wasp trap of the present invention having a sail has a significantly higher attraction effect than the comparative product having no sail.

Test Example 2 Induction color test: Seven hornet traps made of colorless transparent cylindrical plastic without sail used in Test Example 1 were prepared,
Around these 6 openings, color tapes (red, orange, yellow, green, purple, white) of different colors each having a width of 2 cm were wound. The remaining one was used as a control without winding the tape. In each trap, 100 ml of the same attractant liquid as that used in Test Example 1 was placed, and placed on 7 bee breeding boxes in a square bee farm of 20 m square each, and packed with gum tape to prevent it from falling over. The pumice block was adhered and fixed, and the attraction effect was compared for 20 days. The locations were rotated every 4 days so that the installation locations were not uneven, the number of wasps captured at that time was counted, and the same amount of attractant liquid was replaced in all the containers. Table 2 shows the results.

[0032]

From this test example, for hornets,
It was revealed that the attractive effect was higher in the order of red, green, and orange.

[0034]

INDUSTRIAL APPLICABILITY The insect trap of the present invention has a high attracting efficiency and has an attractive effect over a relatively long distance, so that it efficiently traps various harmful insects such as wasps, paper wasps, flies, flies, scarabs, and moths. Is what you can do.

[Brief description of drawings]

FIG. 1 is a front view of an insect trap of the present invention.

FIG. 2 is a side view of the insect trap of the present invention.

FIG. 3 is a sectional view of the insect trap of the present invention.

FIG. 4 is a drawing showing shapes of a partition wall and a drop port that can be used in the insect trap of the present invention.

FIG. 5 is a view showing another embodiment of the insect trap of the present invention.

[Explanation of symbols]

 1 ……… Insect trap 6 ……… Coloring part 2 ……… Attracting part 7 ……… Partition wall 3 ……… Capture part 8 ……… Falling port 4 ……… Sale 9 ……… Attractant 5 ……… Opening part 10 ……… Hanging hole and more Up

Claims (7)

[Claims] 1. An insect trap having an attracting part having one or two or more openings, a catching part, and a partition having a drop opening for communicating the spaces between the attracting part and the catching part. An insect trap characterized in that a sail whose front and rear axes are substantially orthogonal to each other is provided on the opening surface of the portion. 2. The insect trap according to claim 1, wherein the sail is provided above the attracting portion. 3. The insect trap according to claim 1, wherein the openings are provided in pairs along the front-rear axis of the sail. 4. The insect trap according to any one of claims 1 to 3, wherein a drop opening portion of the partition wall projects toward the trap portion. 5. The insect trap according to claim 4, wherein a drop opening portion of the partition wall projects in a funnel shape toward the trap portion. 6. The insect trap according to claim 1, wherein a part or all of the attracting portion is colored with an insect attracting color. 7. The insect trap according to claim 6, wherein the insect is a wasp and the attracting color is orange, vermilion, brown, red or black.