JP3239255U - pest trap net - Google Patents

Abstract

[PROBLEMS] To provide a method for efficiently controlling pests without using chemically synthesized pesticides, eliminating the scattering of pesticides and thus reducing the load on the natural environment, and allowing operators to safely and labor-savingly control pests. coveted. The present invention provides a pest trapping net that controls pests that invade farmland and facilities without using pesticides. A pest trapping net for enclosing an alley farmland or a cultivation facility for cultivating fruit trees and vegetables, comprising a first net 2 and a second net 3 having an opening 7 on the side of the ground surface 10, which are arranged on the sky side. It has a trap part 6 which is joined at an end part 8, traps insect pests entering from an opening and makes it difficult to escape. [Selection drawing] Fig. 1

Description

The present invention relates to pest control in agriculture.

Pest control is essential for crop cultivation. The main method of pest control at present is the spraying of chemically synthesized pesticides, and pesticides impose a load on the natural environment and physiological and labor loads on sprayers. In addition, there is a high demand for low-cost, reduced-pesticide cultivation or pesticide-free cultivation due to consumers' safety and security orientation. For this reason, the development of a physical control method for controlling pests by reducing the amount of chemically synthesized pesticides used has become an issue.
In response to this, we have proposed and implemented methods such as blowing insect pests away with forced air, attracting pests with an attractant and attracting pests to a trap coated with adhesive, and using a light source to lure pests and kill them with an electric shock. It is
However, the cost of the air blower installed in the facility is high, there is a risk that the use of attractants in sticky traps is inconsistent with safe agriculture, and attracting with attractants or light sources unnecessarily many In addition, the operating costs of the air blower and the continuous purchase of the attractant will be a burden on the producers, and it is considered difficult to spread these technologies widely.

JP 2004-135600 Jitsuzen Showa 61-175978

There is a strong demand for a method for efficiently controlling insect pests without using chemically synthesized pesticides, eliminating the scattering of pesticides and thus reducing the load on the natural environment, and allowing operators to safely and labor-savingly control pests. there is SUMMARY OF THE INVENTION An object of the present invention is to provide a pest trapping net that controls pests that invade farmlands and facilities without using agricultural chemicals.

Therefore, the present invention proposes a first net that encloses alley farmland or a cultivation facility for cultivating fruit trees and vegetables, is stretched vertically from the ground surface, and supports the first net from the ground surface in the sky direction. A second net having an opening at the lower end on the ground surface side and joined to the first net at the upper end, and a weight installed at the opening to extend the second net, and It is a pest trapping net that forms a pest trap part that is joined to the second net at the end on the sky side to trap pests.

Also, in the present invention, the trap portion gradually narrows toward the joint end portion of the first net and the second net to form an acute tip angle, and the trap portion is formed between the first net and the post. It is characterized by having a pressing member laid horizontally.

In addition, the present invention is characterized in that the weight is not fixed and the second net can be freely opened.

Furthermore, the present invention is characterized in that the mesh of the first net is larger than the mesh of the second net.

The pest trapping net according to the present invention physically traps pests in the trap part formed by joining the first net and the second net at the ends on the sky side without using agricultural chemicals, and eventually causes pests to die naturally. It is a product, highly safe, and does not require the producer's labor or cost.

In addition, in the trap section, the connecting end portion of the first net and the second net gradually narrows to form an acute tip angle, and the pressing member is provided horizontally between the first net and the post. , there is an effect that pests that have relatively easily invaded the trap cannot get out of the trap.

In addition, since the weight is not fixed and the second net can be freely opened, the pests caught in the trap eventually dry up and rot, and when the opening is opened by the wind or the like, the dead pests fall out of the net. Since it falls to the ground, the trap part will not be full of pests and there is no need to clean the net.

Furthermore, since the mesh size of the first net is larger than that of the second net, insect pests that have entered the trap are prevented from escaping from the smaller mesh of the first net to the outside of the trap. The hairs and thorns of insect pests can be caught in the mesh to prevent their movement, and the insect pests can be reliably captured in the trap part.

1 is a front view of the pest trap net of the present invention; FIG. 1 is a cross-sectional view of the pest trap net of the present invention; FIG. It is a photograph at the time of installing the pest trapping device of the present invention on the side of an agricultural house and trapping pests.

FIGS. 1 and 2 show an embodiment of a pest trapping net for enclosing alley farmlands or cultivation facilities for cultivating fruit trees and vegetables. In FIG. 1, the members constituting the net according to the present invention are a first net 2 stretched in the vertical direction from the ground surface, support columns 1 supporting the first net in the sky direction from the ground surface, and the ground surface side. A second net 3 formed with an opening 7 at its lower end and joined to the first net 2 at its upper end; The net 2 and the second net 3 are characterized by forming a trap part 6 for trapping insect pests, which is formed by joining the ends on the sky side.

The first net 2 is a mesh-like net woven with synthetic resin or metal wires, and preferably has a mesh size of 3 to 6 mm. The first net 2 is fixed with fasteners to the pillars 1 fixed to the ground surface, and extends upward to a height of 150 cm to 240 cm above the ground surface. The height at which the first net 2 is laid is determined according to the height of a cultivation facility such as an agricultural greenhouse, and it is desirable to cover the upper edge of the side of the greenhouse.

The second net 3 is a mesh-like net woven with synthetic resin or metal wires, and preferably has a mesh size of 1 to 3 mm. The second net 3 is joined to the first net 2 at its upper end to form a joined end 8, and the gap between the two nets forms a trap 6 for trapping pests. The second net 3 hangs down from the upper end by 50 to 100 cm, and a pipe-shaped weight 4 is attached to the lower end. The joint end 8 between the first net 2 and the second net 3 needs to be gradually narrowed from the opening at the lower end to the upper end to form an acute tip angle. Alternatively, it may be held down with fixtures such as pipes or metal fittings. Further, the pipe-shaped weight 4 attached to the lower end of the second net 3 needs to be in a state in which the weight itself can be freely moved by the wind. is desirable.

It is desirable to combine net materials with different mesh sizes, for example, the first net 2 has a mesh size of 3 to 6 mm and the second net 3 has a mesh size of 1 to 3 mm. In the second net 3 facing the outside of the house or the outside of the alley farmland, this prevents the pests once entering through the opening 7 from escaping through the mesh of the second net 3 and escaping to the outside. This is because in 2, the hair and thorns of insect pests can be caught in the larger mesh and their movement can be hindered. If both the first net 2 and the second net 3 are nets with a mesh size of 1 to 3 mm, the mesh is too fine for larger pests, and they cannot move or turn around in the trap part 6 without being caught by hairs and thorns. end up

In addition, the trap part 6 needs to be open enough to allow pests to enter and close enough to prevent pests from escaping. , a horizontal pressure 9 is applied to both the first net 2 and the second net 3 to create a state in which the vermin that has entered the trap part 6 is difficult to escape. Between the first net 2 and the post 1, the pressure member 5 is horizontally fixed to the post 1 at a position, for example, 20 to 30 cm from the upper end of the first net 2. For example, a circular pipe having a diameter of 15 to 30 mm is fixed to the post 1. method.

In the present invention, moths, grasshoppers, chafers and the like are assumed as pests of crops such as fruits and vegetables. An opening formed between the first net 2 and the second net 3 of the pest trapping net of the present invention for pests flying or walking from the outside and aiming at agricultural products to enter the farmland or facilities. Find 7 and enter it. Since many insect pests have a habit of moving in the direction of the sky when walking, they move from the opening 7 to the trap section 6 formed by overlapping the first net 2 and the second net 3 above. It advances and crosses a slightly difficult line formed by the pressing member 5 inside the trap portion 6 and eventually reaches the joint end 8 between the uppermost first net 2 and the second net 3 . Since many insects have body hairs and thorns on the body surface and upper and lower limbs that are useful when moving through trees, etc., the insect pests that reach the upper end of the trap section 6 try to retreat, These hairs and thorns are caught on the first net 2 and the second net 3, making it impossible to turn downwards and prevent movement. In this way, pests that have invaded the pest trapping net of the present invention are captured by the trap section and die without reaching the inside of the cultivation facility or the crops.

In addition, since the weight 4 at the lower end of the second net 3 is not fixed and can be freely opened, the pests caught in the trap portion 6 eventually dry up and rot, and when the opening 7 is opened by the wind or the like, the insects are removed from the net. Since the pests fall off, the trap part 6 is not filled with pests, and the pest trapping net according to the present invention does not need to be cleaned.

A method of installing the pest trapping net according to the present invention in an agricultural house will be described below. Agricultural greenhouses generally consist of a rectangular parallelepiped frame covering the farmland, and vinyl or netting as a cover. However, since pests can enter through cracks in vinyl or nets, even agricultural greenhouses can be damaged by pests.
Therefore, a first net 2 having a height of, for example, 2.4 m is stretched around the side of the agricultural house, and fixed with a pipe or the like so as not to move with the column 1 of the house as a base. Next, in order to construct the trap portion 6, a pressing member 5 such as a pipe is laid horizontally between the first net 2 and the post 1 and at a position about 20 cm from the upper end of the first net 2, for example. Further, a second net 3 having a width of, for example, 0.5 m is overlapped with the first net 2 and fixed so as to be joined to the upper end of the first net 2 using a fixture. A joint end 8 of the first net 2 and the second net 3 is fixed by a pipe or the like so as to be pressed against the side of the agricultural house, forming a dead end for pests that have invaded between the first net 2 and the second net 3. . The lower end of the second net 3 can be freely opened, and a pipe or the like is attached to the lower end of the second net 3 to form a weight 4, which is hung downward so that the second net 3 is not fanned by the wind.

FIG. 3 is a photograph of the pest trapping device of the present invention installed on the side of an agricultural house to trap pests. A first net 2 and a second net 3 are stretched on the wall surface of an agricultural house by utilizing a column 1 of the greenhouse, and a pressing member 5 using a pipe is installed between the column 1 and the first net 2. there is The joint ends of the first net 2 and the second net 3 are formed by extending a metal rail horizontally over the post 1 in advance and pressing the two nets from the outside with a cover spring. Pests that have entered through the opening at the lower end of the second net 3 are trapped in the trap part 6. - 特許庁Insects are immobilized around the pressing member 5 as well as near the joint end 8 .

Next, a method for installing the pest trapping net according to the present invention in a cultivation alley farmland will be described below. The present invention works effectively not only for agricultural greenhouses but also for outdoor cultivation farmlands.
For example, about 150 to 200 cm of pillars 1 are erected at equal intervals around the open-field cultivation farmland, and a first net 2 of about 150 to 200 cm wide is stretched around the pillars 1, and the pillars 1 are used as the foundation. Secure it with fasteners so that it does not move. Next, in order to construct the trap portion 6, a pressing member 5 such as a pipe is laid horizontally between the first net 2 and the post 1 at a position about 20 cm from the upper end of the first net 2, for example. Furthermore, a second net 3 having a width of, for example, 50 cm is overlapped with the first net 2 and fixed so as to join with the upper end of the first net 2 . The joint end 8 of the first net 2 and the second net 3 sandwiches both nets, such as two pipes, and fixes them to the upper end of the support column 1. It is necessary to form a dead end. The lower end of the second net can be freely opened, and a pipe or the like is attached to the lower end of the second net 3 to form a weight 4, which is hung downward so that the second net 3 is not fanned by the wind.
In the case of open-field cultivation, the sky above the farmland is open, and pests can easily enter even if the pest trapping net according to the present invention is installed. Since many of them fly at low altitudes, even a pest trap net with a height of about 150 to 200 cm, for example, exhibits a considerable trapping effect.

Reference Signs List 1 Support column 2 First net 3 Second net 4 Weight 5 Pressing member 6 Trap portion 7 Opening portion 8 . . . Joining end portion 9 of the first net and the second net . . . Direction of pressure 10 applied to the first net and the second net by the pressing member .

Claims (4)

A first net that encloses an alley farmland or a cultivation facility for cultivating fruit trees and vegetables and extends vertically from the ground surface, supports that support the first net from the ground surface toward the sky, and an opening at the lower end of the ground surface side. a second net having a portion joined at an upper end to the first net; and a weight placed in the opening for stretching the second net, the first net and the second net is joined at the end on the sky side to form a trap part for catching insect pests. The trap section gradually narrows to form a sharp tip angle toward the joining end of the first net and the second net, and between the first net and the post to form the trap section. 2. A pest trapping net according to claim 1, comprising a pressing member laid horizontally. 3. A pest trapping net according to claim 1 or 2, wherein said weight is not fixed and said second net is freely openable. A pest trapping net according to any one of claims 1 to 3, wherein the mesh of said first net is larger than that of said second net.

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