JPH0667364B2 - How to control pests and mites - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention uses a vacuum suction cleaner to collect dust in a dust collecting bag for a vacuum suction cleaner by introducing or sucking a powder containing an insecticide or acaricide into the dust collecting bag. The present invention relates to a method for exterminating insect pests and mites, which is characterized by applying the extermination of insect pests and mites that have been sucked and trapped in.

In recent years, due to changes in the living environment, carpets are laid directly on the concrete floor, as seen in apartment buildings,
Furthermore, as a result of increasing the number of cases in which a tatami mat with high hygroscopicity is laid on concrete and carpet is laid on it, as a result, mites, deer mites, claw mites, lice mites, etc. are generated, which causes discomfort. Is occurring. In particular, leopard mite, which is a priority species of mites in indoor dust and so-called house dust, is mainly inhabited in the carpet and is said to cause inhalation allergic diseases such as childhood asthma and rhinitis, and is attracting attention as a social problem. ing.

In addition, with the increasing number of indoor dogs and cats,
Fleas that have moved from pets to carpets often bite people and cause bite bite, like the ticks.

Conventionally, as a method for exterminating these pests and mites, 1) heating tatami mats and carpets (sun-dried), drying 2) applying insecticides 3) thorough cleaning (for example, using a vacuum suction cleaner with a suction power of 150W) It has been reported that when treating carpet, it takes 5 to 6 minutes / m ² to obtain a sufficient extermination effect), but each method has various drawbacks. It wasn't enough. That is, in the method of 1), it is very troublesome, and in the case of 2), contact poisons such as pyrethroids can exterminate only the pests and mites that come into contact with them, so consider the method of contact with the drug. I need it. In addition, since a drug having a gas effect is used at home, there is a safety problem. Furthermore, not only use labor in the method of thorough cleaning and extermination using the vacuum suction cleaner of 3) (hereinafter referred to as electric vacuum cleaner),
Normally, the dust is not processed until the dust bag of the vacuum cleaner is full, so there is a risk that the sucked pests and mites will be propagated by the dust bag and come out of the vacuum cleaner. Yes (it is said that the dust is processed or the bag is replaced every one month on average in normal use of ordinary households). Further, there is also a problem that dead mortal glands and feces of Dermatophagoides farinae pass through the dust collecting bag and are discharged together with the discharged air to become an asthma allergen.

On the other hand, there are commercially available disposable dust collector bags for electric vacuum cleaners coated with insecticides and acaricides, but pests mixed with dust,
The opportunity for mites to come in contact with insecticides and acaricides is extremely small, and the control effect is poor.

The present inventor, in view of the present situation, as a result of continued intensive research for the purpose of establishing an accurate method for exterminating pests and mites, pests that have been sucked and trapped in a vacuum cleaner dust bag, mites, The present invention has been completed by finding that the method of applying a powder containing an insecticidal and acaricidal agent is suitable for the above purpose and can control pests and mites reliably and effectively.

The dust-collecting bag used in the present invention may be a household or commercial one, for example, paper, cloth, non-woven fabric or porous synthetic resin, regardless of its material and size. The density of the dust collecting bag is not particularly limited as long as it is usually used, and for example, a dust collecting bag made of paper (2 to 4 μm)
Those having a hole diameter that passes through the ones (generally) and those made of cloth (usually having a slightly larger hole diameter than those made of paper) are preferably used. The particle size of the powder used in the present invention is related to the density of the dust collecting bag, but is preferably within a certain range. For example, if it is too small, it will pass through the eyes of the dust bag and sprinkle the powder indoors. On the other hand, if it is too large, the contact effect with pests and mites will be poor, and therefore powders that are used in ordinary pesticides and household medicines and pass 100 mesh (150 μm) to 300 mesh (50 μm) are preferable. If you choose a powder with such a particle size, it will not only excel in the contact effect with pests and mites, but as a result of filling the eyes of the dust collection bag to some extent, the mortality and feces of allergens such as mites will become It offers the advantage of not scattering from the eyes. In addition, 10 mesh (17 mesh
(00 μm) to 100 mesh (150 μm) particle size, the vortex generated in the dust bag during suction operation may cause
Since the fine granules come into close contact with dust, they act extremely efficiently on mites that live in dust insects.

As the active ingredient of the powder used in the present invention, phenothrin, permethrin, resmethrin, cyphenothrin,
Cypermethrin, fenpropasulin, pyrethrin,
Pyrethroid compounds such as allethrin, tetramethrin, flamethrin, empentrin, fenvalerate (including optical and geometrical isomers or mixtures thereof), IBTA, S-421, Reisen 384, piperonyl butoxide, cinepyrine 222, cinepyrine 500 Examples include pyrethroid synergists such as, and organophosphorus insecticides such as fenitrothion, diazinon, propaphos, and pyridafenthion, and carbamate insecticides such as carbaryl, tumaside, and meovar. One or two of these The above can be used in combination.
Furthermore, it is of course possible to use it in combination with a bactericide, a fungicide, etc. as a multipurpose composition. These active ingredients are usually 0.
A powder can be prepared by mixing with a carrier so as to contain 1 to 10% by weight (hereinafter,% represents% by weight). In addition,
As the carrier, for example, clay, talc, kaolin or the like can be used, and if necessary, white carbon or the like may be mixed to improve sliding.

The applied amount of the powder used in the present invention is appropriately determined depending on the type and content% of the active ingredient contained in the powder, the capacity of the dust bag of the vacuum cleaner to be used, the application conditions and the like. For example, when the present invention is applied to a household vacuum cleaner, the amount of dust is generally 30 to 70 g / m ² per surface area of the dust collection bag, although it depends on the type of active ingredient contained in the dust and content%. Appropriate and sufficient control effect is obtained. That is, when the amount of powder is less than the above range, the disinfecting effect is low because of poor contact between the drug and harmful insects and mites, while when the amount is too large, the dust bag is clogged and the suction force is reduced. For household use, the dust collecting bag generally has a surface area of 0.1 to 0.2 m ² , and therefore, the amount of the powder for one-time powder is preferably 5 to 20 g. Therefore, if an appropriate amount of dust powder of 5 to 20 g is packaged with paper or plastic film, a fixed amount of dust can be applied once every time the dust bag is replaced, which is easy to use and extremely practical. . The dust is introduced into the dust collecting bag of the vacuum cleaner by charging or suctioning. As the latter suction method, it is possible to apply an appropriate amount of dust on the whole or part of the carpet or tatami to be cleaned, and suck with a pest, mites and dust with a vacuum cleaner. . It should be noted that it is of course possible to suck dust appropriately from the dust storage bag or container to make it evenly adhere to the surface of the dust bag and then clean it to suck pests, mites and dust. .

INDUSTRIAL APPLICABILITY The driving method of the present invention can be applied to various scenes such as carpets, rugs, tatami mats, boards, and the like. It is extremely effective in exterminating wool insects such as cuticle beetles, sanitary insects such as flies, mosquitoes, goblin, fleas, bed bugs, house dust mites, and stored-grain insects such as foxtail, beetles, and wasps, and the growth of insects and mites. It is a highly effective exterminating agent regardless of the stage.

Hereinafter, the present invention will be described in more detail with reference to Examples.
The present invention is not limited to the following examples unless it exceeds the gist.

Test example Extermination effect test As shown in Fig. 3, National vacuum cleaner (product number
AMC-P1; Paper dust bag with suction power of 150 W (Fig. 2)
After pouring 5 g of powder containing 1.0% phenothrin on a surface area of 0.14 m ² ), the powder was instantly and uniformly attached to the inner wall of the dust collecting bag by suction. Subsequently, a medium containing about 5360 Dermatophagoides farinae was put in the dust bag and sucked for 2 minutes, and then 3
It was kept under the conditions of a temperature of 25 ° C. and a relative humidity of 75% for a day. After that, the dust bag was cut open to collect mites, which were separated by the saturated saline floating method to count the number of living mites. As a control, fenitrothion was applied to the surface in advance (0.3 g / m ² )
The paper dust bag was used.

Including the number of dead mites, almost all the number of mites in the medium were recovered.

As is clear from the test results, the extermination effect of Dermatophagoides farinae by the method of the present invention was extremely excellent, while a sufficient extermination effect was not obtained only by using the dust bag coated with the drug.

Example 1 A plastic film-made packaging (Fig. 1) containing 10 g of a clay powder containing 0.5% of phenothrin as an active ingredient (particle size; 95% or more passes 300 mesh) was crushed, and a vacuum cleaner made by National ( (Part number AMC93K) The powder was put into a paper dust bag (surface area: 0.14 m ² ) (powder application amount;
71 g / m ² ). After suctioning for a while to spread the dust powder thinly on the dust collecting bag, a carpet of 6 tatami mats in which the Dermatophagoides farinae propagated was cleaned for 10 minutes. After repeated cleaning for one month in a normal life pattern, the habitat rate of Dermatophagoides farinae which was sucked into the dust bag together with dust was 0%. Further, the habitat density of Dermatophagoides farinae on the carpet was 5% or less before application of the extermination method of the present invention.

Example 2 5 g of a clay powder containing 1.5% of fenitrothion as an active ingredient (particle size: 95% or more passed 300 mesh) was distributed to several places between 6 tatami mats in which the acarid mite was propagated. After attaching a paper dust bag (surface area: 0.15m ² ) to a Toshiba electric vacuum cleaner (product number VPF-2), clean the 6 tatami mats over 5 minutes, and dust, mite, etc. along with the dusted powder. Was sucked into a dust bag (powder application amount: 33 g / m ² ). Five days later, when the life and death of Acarina pallidum in the dust bag was observed, most of them were dead.

Example 3 A paper dust bag containing 5 g of a clay powder containing 1.0% phenothrin as an active ingredient (particle size: 50% passes 300 mesh, 50% 30 to 60 mesh) was crushed, and the cat flea The powder was sprayed on a carpet of a large number of 2 tatami mats.
After attaching a paper dust bag (surface area; 0.14 m ² ) to a Hitachi vacuum cleaner (product number CVF110T), the carpet was cleaned for 5 minutes, and after 3 days, the dust trapped on the carpet and dust bag When the fleas in the inside were examined, it was 0%
Met.

Example 4 50 g of talc powder containing 1.0% of diazinon as an active ingredient (particle size; 98% or more passes 300 mesh) was put into a cloth dust bag (surface area 1.0 m ² ) of a vacuum cleaner for business use (powder application) 50g / m ² ). I attached the dust bag to the vacuum cleaner and cleaned the carpet in the hotel lobby with a size of 50m ² over 40 minutes.

Three days later, when the dust in the dust bag was observed, all of the trapped pests and mites, such as German cockroach larvae, bed bugs, mosquitoes, bryophytes, or mites, leopard mites, and lice mites were all dead.

[Brief description of drawings]

FIG. 1 is a perspective view of a dust-absorbing sachet that is preferably used in the present invention, FIG. 2 is a perspective view of a paper dust bag, and FIG. FIG. 3 is a perspective view of the electric vacuum cleaner showing a part of the interior thereof in a see-through manner. In the figure 1 …… Plastic film sachet 2 …… Seal bag seal part 3 …… Notch for breaking bag 4 …… Powder agent 5 …… Paper dust bag 6 …… White cardboard, 7 …… White cardboard hole 8 …… Vacuum cleaner body 9 …… Filter 10 …… Suction hose

Claims (1)

[Claims] 1. A dust collecting bag for a vacuum suction cleaner containing an insecticide and acaricide, and 50% or more of the total amount has a particle size of 10 to 150 μm.
Pests that have been sucked and trapped in the dust-collecting bag by using a vacuum suction cleaner by charging or sucking a powder in the range of
A method for controlling pests and mites, which comprises applying the powder to mites.