JPS5843050B2 - How to prevent and exterminate pests using foam - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for exterminating pests such as termites, cockroaches, etc. that occur in separated spaces, such as under floors, drains, etc.
In particular, the present invention provides a method suitable for completely preventing and exterminating termites that occur on foundations under floors or at the bottom of columns.

Pests such as termites are likely to infest woody parts such as the foundations under floors or the bottoms of columns, and they are particularly harmful to houses located in damp areas.

In order to remove termites, people have traditionally applied or sprayed exterminators under floors, but it is extremely difficult to apply or spray exterminators to every corner of the floor. Not only is the process difficult and time-consuming, but there is also concern that it may cause chemical damage to the workers themselves.

The drawbacks of these conventional methods are particularly noticeable in ready-made houses, etc., where the floors are low and wood chips and the like are scattered under the floors.

Therefore, even if it appears that the insects have been exterminated temporarily, extermination operations often have to be carried out again and again.

In order to completely prevent and exterminate termites, the exterminator should be applied to the entire surface of not only areas that have been damaged by insects, but also areas that are susceptible to insect damage, as well as scattered pieces of wood, so that it penetrates into the inside and is effective against termites. No residual toxicity shall be left behind.

The inventors of the present invention obtained the present invention as a result of their efforts to bring the pesticide into contact with the entire surface of the material within the partitioned space without worrying about chemical damage to the human body and with good workability.

Now, the development of chemical fire extinguishing in recent years has led to the rapid development of foaming technology.

Foam extinguishing with chemical extinguishing agents is accomplished by rapidly covering the burning material with foam and isolating it from air.

In this case, the size of the foam and the amount of foam generated can be adjusted quite freely depending on the composition of the extinguishing agent and the type of foam generator.

The present invention applies this technology to pest control.

The pest control liquid used in the present invention is an aqueous emulsion or solution containing a foaming agent, an emulsifier, a pest control agent, etc.
Used diluted with water.

The foaming agent may be of any kind as long as it is used for foam fire extinguishing agents, preferably one that itself has excellent permeability and foam stability, but it may be used in combination with penetrants, foam stabilizers, etc. Good too.

Further, as a pesticide, chlordane or the like may be used alone or together with a preservative.

In the present invention, it is necessary to foam the foam as quickly as possible using a high expansion generator to fill the space.

In this way, the bubbles will spread to every corner of the divided space, so after the bubbles break naturally, the liquid that formed the bubbles will adhere uniformly to the entire surface, allowing it to penetrate sequentially and completely exterminate termites. , soil treatment is also complete and preventive.

During this work, the worker does not need to go under the floor, the process can be done in a short time, and the pesticide is not scattered outside, making it sanitary and safe.

Although the above describes the prevention and extermination of termites under floors, the present invention is not limited thereto, and can also be applied to the prevention and extermination of termites in other general structures (temporarily divided as the case may be) or sewers, etc. Of course, it can be applied to.

Examples are shown below. Example Height: 45cr using square timbers and boards that have been damaged by termites
I made an underfloor model corresponding to a 6-tatami mat, or 4-and-a-half tatami mats, and scattered pieces of wood that had been damaged by termites in the same way.

In this space, the following composition is contained: 3% solution containing blowing agent higher alcohol sulfate ester salt, etc. Solvent phthyl glycol ether 3% Emulsifier polyoxyethylene nonylphenol 4% Ruelal insecticide chlordane 2% Preservative TBP 3% water
The remaining liquid was made and foamed at high speed to fill the underfloor model with foam.

The amount of liquid required at that time was 451, and the processing time was 2 minutes and 30 seconds.

After treatment, the model was dismantled and inspected for termites, but none were found alive.

Claims (1)

[Claims] 1. A method for preventing and exterminating pests, etc., characterized by foaming a pest exterminating solution containing a foaming agent, an emulsifier, and an exterminating agent at high speed and filling a divided space.