JPH0899811A - Method for controlling fossorial animal - Google Patents

Abstract

PURPOSE: To provide a method for controlling an animal having a habit to dig a hole in the ground. CONSTITUTION: A suffocating gas is introduced into a hole dug by an animal having a habit to dig a hole in the ground. The suffocating gas is preferably a gas having a density comparable to or heavier than air, especially nitrogen gas or carbon dioxide gas.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for exterminating animals capable of digging holes in the ground such as moles, field mice, snakes and frogs. More specifically, the present invention provides a method capable of surely eradicating a digging animal by using a cheap raw material and a simple means.

[0002]

2. Description of the Related Art Animals such as moles and field mice not only damage agricultural products and mediate infectious diseases, but also have the habit of digging tunnels in the ground like a maze. These tunnels destroy the green of the golf course, weaken the embankment of the river, reduce the water retention of the land and the strength of the ground, and in some cases, this may cause water damage.

[0003]

[Problems to be Solved by the Invention] The green of a golf course is managed with great care so that the green can be maintained even in the winter, and when a tunnel can be formed in such a place, the construction management is carried out as desired. Various measures have been taken so far because soil rises on the green, turf is not gathered, and the value as a golf course sharply decreases. For example, a trapping device such as a traverser was installed, or a drug was introduced into the hole as soon as it was found to exterminate the animals inside or block the entrance of the hole. However, the tunnel has a deep upper part that is connected in all directions, and it was difficult to exert an extermination effect on the entire tunnel.
Also, there was a lack of certainty in catching animals that do not know when they will come out.

Furthermore, when a large amount of rain falls on such a land, rainwater is not only absorbed by the land surface on the ground but also flows into the cavities in the ground, and the entire land collapses including water. It will be in an easy state. Therefore, for example, if there is a tunnel cavity on the bank of the riverbank or on the slope of a sloping land, if it exceeds a certain limit, the sloping ground itself will collapse and cause a landslide, which may cause a disaster and cause problems in river management or slope management. Therefore, until now, it was said that revetment work was done to make the riverbank a concrete wall to make it difficult for animals to live in it, or to check the bank and take measures to block the hole, but the temporary effect However, it was not a decisive method, and a simple and reliable method was sought.

The inventors of the present invention have noticed that there is a tunnel in the ground prepared by animals having burrowing habits, which is usually lower than the ground surface, and does not interact much with the air on the ground. . If suffocating gas is introduced into this hole to fill the hole and suffocate the animals, these animals can be exterminated as a result. If the gas is heavier than air, the introduced gas will automatically flow through the holes downwards and downwards, gradually filling the cavity from the bottom and not easily expelled. Even if the gas weighs as much as air, the introduced gas in the ground has little interaction with the outside air, so it stays in the tunnel for a long time and suffocates the animals in the hole. I was able to get rid of.

[0006]

SUMMARY OF THE INVENTION Therefore, the present invention provides a digging animal in the ground by introducing a gas for suffocating the digging animal into a hole dug by an animal having a digging habit. It provides an extermination law. It is preferable that the gas is equal to or heavier than air, and nitrogen gas or carbon dioxide gas is particularly preferable.

The hole for introducing the gas may be a hole, a rodent, a snake, or any other hole formed by any of mammals, amphibians and reptiles. These holes can be found by observing the surface carefully, because the soil on the ground surface is soft and raised, or holes are open. Gas can be introduced as soon as the entrance of the hole is discovered. Regardless of the shape of the tunnel-like cavity in the ground, gas flows into and fills the tunnel, so regardless of the depth or shape of the tunnel, suffocating burrowing animals can be performed from the ground with a simple method. Can be made.

The gas which can be used in the present invention may be any gas as long as it has an asphyxiation property, and examples thereof include nitrogen gas, propane gas, butane gas and carbon dioxide gas. A gas equivalent to or heavier than air (specific gravity 29) is preferable, and examples of such a gas include, for example, nitrogen gas (specific gravity 28),
Propane gas (specific gravity 44), butane gas (specific gravity 58),
Carbon dioxide gas (specific gravity 44), hydrogen sulfide gas (specific gravity 34), hydrogen chloride gas (specific gravity 36.5), sulfurous acid gas (specific gravity 64)
However, nitrogen gas and carbon dioxide gas are most preferable from the viewpoints that a gas that is not harmful to humans is preferable, and that it is easily available, inexpensive, and easy to handle. Even if there is some by-product mixed in the nitrogen gas or carbon dioxide during the production, it can be used as it is as long as it is not a harmful substance.

When introducing the gas into the hole, it is only necessary to discharge the gas toward the inside of the hole. Insert the inlet slightly to the inside from the inlet and release the gas. The released gas automatically flows into the labyrinth-like hole, and in the case of gas heavier than air, the bottom is preferentially filled into the ground. In any case, since the contact with the external gas is small, the introduced gas stays in the tunnel for a long time and suffocates and kills the animals that live in the tunnel.

[0010]

【Example】

Example 1 A new and soft raised portion of soil was found on the green of a golf course, a portion of the soil was removed, and the tunnel hole was exposed to the ground. In the hole of this tunnel, the hose tip of the nitrogen gas cylinder was directed inward from the inlet of the hole, and nitrogen gas was discharged to fill the hole sufficiently.

Even after one month has passed since the release, new soil did not rise on the green, and the animals dug in the tunnel are considered dead. Example 2 A hose tip of a liquefied carbon dioxide gas cylinder was slightly inserted from the hole entrance toward the entrance of the Mole's tunnel hole in the middle of the bank on the riverbank, and carbon dioxide gas was sufficiently discharged until it was filled. After 7 days, carbon dioxide gas was released in the same manner. Two months after the last release, there was no evidence of new tunnel holes.

[0012]

EFFECTS OF THE INVENTION By introducing a choking gas, which is easily available and inexpensive, into the hole, preferably a gas equivalent to air or heavier than air, it is possible to exterminate burrowing animals in the ground simply and efficiently. it can. It is particularly effective for maintaining the green on the golf course.

Claims (3)

[Claims] 1. A method of exterminating an underground digging animal by introducing a gas for suffocating the digging animal into a hole dug by an animal having a digging habit. 2. The extermination method according to claim 1, wherein the gas is a gas equal to or heavier than air. 3. The extermination method according to claim 2, wherein the gas is nitrogen gas or carbon dioxide gas.