JPH09175903A - Harmful insect-exterminating agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a harmful insect-exterminating agent having a stable adhesiveness with time and capable of applying in high probability to meet harmful insects with the exterminating agent and being eaten sufficient for the effective amount by the harmful insect. SOLUTION: This harmful insect-exterminating agent having adhesiveness contains an effective insecticidal ingredient and, if needed, a harmful insect attractant and is blended with a drying oil such as a sucrose fatty acid ester and a fat and oil and fatty acid such as stearic acid so as to become 7500-30000cP at the normal temperature. The harmful insect-exterminating agent contains <=0.5wt.% sodium chloride to bring the agent to be easily eaten by the harmful insect.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a pest control agent and a pest control method using the same.

[0002]

2. Description of the Related Art Generally, typical examples of pests frequently appearing in human environments include flies, mosquitoes, fleas, mites, cockroaches, ants, and the like. An exterminating agent containing an active ingredient for exterminating these insects. As liquid dosage forms, liquid, solid, and semi-solid (jelly) forms are known.

The liquid pesticide is used by spraying, coating, mixing with an aqueous system, etc., and solid or semi-solid substances are put in a container as necessary to be extinguished indoors or outdoors. Installed and used.

[0004]

However, liquid pesticides have a problem in that, when sprayed or applied, they tend to disperse or peel off over time, resulting in a decrease in efficacy. The place where the pest control agent in the shape of
Usually, it is limited to about ² to 3 places per 5 m ^2, and there is a problem that the probability of pests encountering such a pesticide is low and there is not a sufficient pest control effect.

Further, when such a pesticide is one that attracts and attracts food, there is a problem that it is not easy to increase the installation density in order to sufficiently eat an effective amount (eg, lethal amount). .

Therefore, a first object of the present invention is to solve the above-mentioned problems, to provide a pest control agent with appropriate adhesiveness, to increase the installation density in many places, and to easily apply it. In that state, keep the shape for a certain period,
The pest control agent has a high probability of being eaten by pests.

A second object of the present invention is to solve the above problems and to provide a pest control agent capable of sufficiently eating an effective amount.

[0008]

In order to solve the above-mentioned first problem, in the present invention, an oil or fat or a fatty acid,
Viscosity of dry oil at room temperature is 7500-30000 cP
It was a pest control agent that was blended to give (centipoise).

Alternatively, the pest control agent comprises an insecticidal active ingredient and a pest attractant, and an oil or a fatty acid and a drying oil are mixed so that the viscosity at room temperature is 7500 to 30000 cP.

In order to solve the above-mentioned second problem, the content of sodium chloride in the above-mentioned pest control agent is set to 0.
It was adjusted to 5% by weight or less.

Further, the above pest control agent is contained in a container in which the contents can be extruded, and a predetermined amount is extruded to adhere to the surface to be exterminated.

The above-mentioned pest control agents are used at room temperature (15-25
Since the specified oils and fats are mixed to give a specified viscosity at (° C), it is easy to attach it little by little to the desired part to increase the density of the application part, and the drying oil absorbs oxygen in the air. Since it solidifies after that, it maintains a stable shape over time, and it becomes easy for the pests to eat for a long time.

Further, since the pest-controlling agent in which the content of sodium chloride is adjusted to 0.5% by weight or less makes the eating habits of the pests extremely excellent, it is necessary to sufficiently eat the insecticidal active ingredient to enhance the controlling effect. You can

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The insecticidal active ingredient to be used in the present invention is not particularly limited, since any ingredient effective for exterminating insect pests to be exterminated as described below may be appropriately adopted. Such components can be exemplified.

Examples of the organophosphorus insecticidal active ingredient include phenthion, fenitrothion, diazinon, prothiophos, pyridafenthion, chlorpyrifos, dipterex, dimethoate, and tetrachlorovinphos.

As the carbamate insecticidal active ingredient,
Examples include carbaryl, propoxur, and etiophencarb.

Examples of insect growth inhibitors include diflubenzuron, teflubenzuron, chlorfluazuron, buprofezin, phenoxycarb, methoprene, pyriproxyfen, hydroprene, cyromazine and the like.

As other insecticidal active ingredients, borax,
Examples thereof include boric acid, hydramethylnon, imidacloprid, and fipronil.

Examples of pests to be exterminated corresponding to such active ingredients are as follows. Examples of flies include a housefly, a housefly, a sandfly, a housefly, a flesh fly, a lobster fly, a black fly, a flesh fly, a flesh fly, a fruit fly, a black fruit fly, a hoverfly, a fly fly, and a fly fly. As ants, Himeari, Irihime,
Black-tailed Ali, Yellow-tailed Dwarf, White-tailed Ant,
The white-tailed ant, the giant ant, the red-footed ant, the black-headed ant, the white-tailed ant, the black-tailed ant and the like can be mentioned. Examples of cockroaches include German cockroaches, Black cockroaches, Yamato cockroaches, American cockroaches, American cockroaches, Black cockroaches, Northern cockroaches, House cockroaches, Greater cockroaches, and Greater cockroaches. Other pests include bees, paper wasps and wasps.

The drying oil used in the present invention may be one having a property of absorbing oxygen in the air and solidifying, and a vegetable oil having an iodine value of 130 or more such as linseed oil which solidifies relatively quickly or an ester type synthetic oil. Drying oil is preferred,
It is also possible to use sesame oil, rapeseed oil, cottonseed oil, soybean oil having an iodine value of about 100 to 130 called semi-drying oil,
Further, a desiccant may be added. Among the ester-type synthetic drying oils, particularly, sucrose fatty acid ester has been used with favorable results.

The fats and oils may be solid or liquid fats and oils at ordinary temperature (15 to 25 ° C.), and may be used by increasing the melting point by hydrogenation (as hardened oil). . As the fatty acid, those having the same physical properties as those of the oil and fat can be used, and examples thereof include palmitic acid and stearic acid.

The pest control agent of the present invention comprises the above-mentioned drying oil and other fats or oils or fatty acids or a mixture thereof at room temperature (15 to 25 ° C.) of 7500 to 30000c.
It is blended so as to have a viscosity of P. Because 7500c
If the viscosity is lower than p, the pesticide will not adhere to the smooth surface made of wood or metal and will flow out from the place where it is applied, which is not preferable, and if it is higher than 30000 cP, the adhesion will worsen and the extrusion performance will deteriorate. This is because it is difficult to extrude the container from the extrusion hole diameter (usually set to about 1.0 to 5.0 mm), which is not preferable. To adjust the viscosity, a powdery material such as starch that does not impair the eating habits of harmful insects may be appropriately mixed.

By the way, the content of sodium chloride in the pest control agent of the present invention is preferably adjusted to 0.5% by weight or less. This is because the content of sodium chloride, which is usually contained in a very small amount in the composition, is obvious from the results of experiments to be described later. Eating habits are reduced,
This is because the active ingredient cannot be incorporated sufficiently into the pest body.

The pest attractant used in the present invention is
Examples include pheromones and the like, which contain a large amount of animal proteins and which are preferably eaten by pests to be exterminated, or which emit an attractive odor.

The edible insect pest attractants include fish-derived substances such as beetle, mackerel and sardine, squid, octopus,
From molluscs such as shellfish, from crustaceans such as krill, shrimp and crabs, from insects such as pupae, from mammals such as beef, chicken and whale meat, skim milk, casein, etc. Examples thereof include those derived from dairy proteins and other well-known pest attractants.

A preferred use form of the pest control agent of the present invention is to fill an extruded tube or a well-known extruded container so that a required amount is adhered to a floor surface, a wall surface, furniture or other surface to be exterminated at small intervals. To do. When it is necessary to prevent accidental ingestion for infants and pets, use a container having an opening through which only the pests to be exterminated can be put in and out so that the pest control agent of the present invention cannot be easily taken out. Is preferred.

An embodiment of a method for exterminating pests when the extruded container is attached to a surface to be exterminated will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, a container capable of extruding a pest control agent is a container for accommodating a medicine made of a material which is smaller and more foldable inside an outer bottle 1 made of a plastic such as polyethylene. The inner bottle 2 is inserted, the periphery thereof is tightened with a cylindrical rubber band 3, and a valve 4 is attached to the rim of the inner bottle 2.

The inner bottle 2 is made of a synthetic resin having high rigidity such as polyethylene terephthalate (PET) so as to have pressure resistance, and is molded, and a vertical fold line (half cut line) is formed on the body portion thereof.
Are formed at intervals in the circumferential direction. By doing so, as shown in FIG. 1, the bottle shape is kept in a state where the pest control agent is press-fitted inside, but as shown in FIG. 3, when the internal pressure is released, it seems that the rubber band 3 is deflated by the tightening force. The pest control agent is pushed out to the outside of the inner bottle 2 by being folded.

As shown in FIG. 2, the valve 4 for adjusting the amount of extrusion has a structure improved from a known aerosol valve, and a lid 5 made of metal for fixing the edges of the inner bottle 2 and the outer bottle 1 together. Inside, the flange 6a of the cylindrical body box 6 is pressed and locked to the ring 7. Then, in the valve box 6, a side hole 8 communicating with the inside of the inner bottle 2 is formed, and a cylindrical movable valve 10 having a valve hole 9 is inserted, and this is vertically moved by an elastic force of a coil spring 11. It is held slidably, and is normally (non-used) held at a position where the side hole 8 and the valve hole 9 do not coincide with each other.

The movable valve 10 is in airtight sliding contact with the inner surface of the valve box 6 and is retained (not shown), and an outflow passage 12 communicating with the valve hole 9 thereof communicates with a nozzle 14 of a cap 13. There is.

In such a container, when the cap 13 is pushed against the elastic force of the coil spring 11, the side hole 8 and the valve hole 9 of the valve 4 communicate with each other, so that the internal pressure is released and the tightening force of the rubber band 3 is applied. The pest control agent is extruded from the deformed inner bottle 2 so that a desired amount can be easily attached to a surface to be controlled such as a floor surface or a wall surface.

[0033]

【Example】

[Examples 1 to 9 and Comparative Examples 1 to 8] The materials shown in Table 1 or Table 2 were mixed all at once to produce a pest control agent.

[0034]

[Table 1]

[0035]

[Table 2]

In order to investigate the physical properties and the exterminating effect of the obtained Examples and Comparative Examples, the following tests A to
F was performed.

(A) Viscosity The viscosities (cP) of Examples 1, 4 to 9 and Comparative Examples 7 and 8 were measured with a B-type viscometer to determine the rotor number.
Table 4 shows the results obtained under the conditions of 4, rotation speed of 6 rpm and liquid temperature of 20 ° C.

(B) Ease of Extrusion Examples 1, 4 to 9 and Comparative Examples 7 and 8 were manufactured using a nozzle diameter of 1 mm,
Alternatively, it was investigated whether it was possible or impossible to extrude by filling the container shown in FIGS. The results were evaluated in two grades, that is, acceptable and unacceptable, and are also shown in Table 3.

(C) Adhesion Test For Examples 1, 4 to 9 and Comparative Examples 7 and 8, 3.0 g of each was adhered to a vertical glass surface, and 20 ° C., relative humidity (RH) 20%, or It was stored in a stationary state under the conditions of 40 ° C. and RH 90%, and the adhesion state after 1 day, 3 days and 7 days of storage was evaluated according to the following criteria. That is, good adhesion:
◯ mark, poor adhesion (spontaneous peeling): There were two levels of x mark, and the results are also shown in Table 3.

[0040]

[Table 3]

As is clear from the results shown in Table 3, Comparative Example 7 having a viscosity less than the predetermined range (7500 to 30000 cP)
Could not adhere to the glass surface for a predetermined period. Further, in Comparative Example 8 in which the viscosity exceeded the predetermined range, the extrudability was poor and it could not be easily applied. On the other hand, Examples 1, 4 to 9 satisfying the predetermined viscosity condition also had good extrusion performance and maintained the adhered state for at least 7 days even under the condition of high temperature and high humidity.

(D) Attracting / Eating Property Test 50 adult German cockroaches were released into a test container (30 cm in diameter, 15 cm in depth), and the pest control agent of Example 1 was
Example 2 or Example 3 in which 0.1% by weight or 0.5% by weight of NaCl was added, and Comparative Example 1 in which 1.0% by weight, 3.0% by weight or 5.0% by weight of NaCl was added, 3.0 g of 2 and 3 were placed side by side, and attracting and eating properties were compared, and the results are shown in Table 4. The evaluation criteria are as follows. ++: Extremely strong attracting and eating ability ++: Strongly attracting and eating ability +: Inviting and eating ability ±: Slightly attracting and eating ability −: Almost no attracting and eating ability

[0043]

[Table 4]

As is clear from the results shown in Table 4, about 0.
Examples 1 to 3 containing 5% by weight or less of NaCl (the addition amount is 0 in Example 1, but a small amount of NaCl is contained in bonito powder etc.) have extremely strong inducing and eating habits. Indicated. However, in Comparative Examples 1 to 3 in which 1 to 5% by weight of NaCl was blended in an amount exceeding 0.5% by weight, the triggering and eating properties were not sufficient.

(E) Practical test of attractiveness / edibleness The practicality of attractiveness / edibleness was examined in a restaurant kitchen where the German cockroach inhabits. That is, Examples 4, 5,
8g and 1g of each of the pesticides of Comparative Examples 4 and 5 were filled in an accidental food prevention container, and then juxtaposed in a place where many German cockroaches inhabit for 5 days, depending on the degree of contamination of the accidental food prevention container. The invasion frequency (attractability) was examined, and the eating habit was examined from the remaining amount of each pesticide. These ratings are:
The results were shown in Table 5, with the same criteria as those in Table 4 being used for the 5-grade evaluation. In addition, the said test was repeated 3 times, changing the place in the said restaurant kitchen, and the result was averaged and evaluated.

[0046]

[Table 5]

As is clear from the results shown in Table 5, it contains an animal pest attractant which is preferred by German cockroaches, and N
Examples 4 and 5 in which the aCl content is 0.5% by weight or less
And 8 also showed extremely strong attracting and eating habits against German cockroaches in the restaurant kitchen, while 0.5% by weight in Comparative Example 4 and fish soy powder containing no animal pest attractant. In Comparative Example 5 containing a large amount of NaCl that exceeds, none of them had sufficient attracting and eating properties.

(F) Exterminating effect on ants A nest of squirrel ants is formed in a rectangular box container (depth is arbitrary) of 12 cm × 25 cm, and 35 cm × 145 cm of continuous 35 cm × 145 cm is formed in such nesting area through a pipe. Using a breeding container for ants with a rectangular box-shaped container as a feeding section, the extermination effect on ants was examined. That is, Example 9 or Comparative Example 6 was installed in two places of 0.2 g each in the foraging section. Further, as a control feed, the same amount of artificial feed (kneaded product of powder feed and sugar) was placed in the feed section, and the habitation state of the ant was observed. The evaluation criteria are the following four levels, and the results are shown in Table 6.
It was shown to. ++: Live ants cannot be confirmed (strong extermination effect) +: Very few live ants can be confirmed ±: Ant activity can be confirmed −: No extermination effect is observed

[0049]

[Table 6]

As is clear from the results shown in Table 6, in Example 9 containing the animal pest attractant which is preferred by the ant ant, the exterminating effect appears from 3 days after the administration, and the nest disappears almost completely after 4 days. Although the extermination effect was shown, the activity of ants was confirmed even after 5 days in Comparative Example 6 containing no animal pest attractant, and the extermination effect was not sufficient.

[0051]

As described above, the present invention provides a pest control agent containing a predetermined oil or fat or fatty acid and a drying oil so as to have a predetermined viscosity at room temperature. It has the advantage that it can be attached and becomes stable over time, and that it can be applied with a high probability that harmful insects will encounter the pesticide.

Further, the pest control agent in which the content of sodium chloride is adjusted to 0.5% by weight or less has the above-mentioned advantages and also has an extremely good eating property, so that an effective amount can be sufficiently eaten. It also has the advantage of being extremely effective in combating cockroaches.

Further, in the extermination method in which the pest control agent is contained in a container capable of extruding the content and a predetermined amount is extruded and adhered to the surface to be disinfected, the pest control agent of the present invention is added in small amounts at appropriate intervals. There is an advantage that it can be applied easily.

[Brief description of the drawings]

FIG. 1 is a sectional view of a container using a pest control agent.

2 is an enlarged cross-sectional view of the valve of the container of FIG.

FIG. 3 is a partial sectional view illustrating a deformed state of an inner bottle.

[Explanation of symbols]

 1 Outer Bottle 2 Inner Bottle 3 Rubber Band 4 Valve 5 Lid 6 Valve Box 6a Flange 7 Ring 8 Side Hole 9 Valve Hole 10 Movable Valve 11 Coil Spring 12 Outflow Path 13 Cap 14 Nozzle

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display area A01N 57/12 A01N 57/12 Z 57/14 57/14 DC 57/16 103 57/16 103B 103C 57/20 57/20 C 59/14 59/14

Claims (5)

[Claims] 1. A viscosity of an oil or fat or fatty acid containing a pesticidal active ingredient and a drying oil at room temperature of 7500 to 30000.
A pest control agent formulated so as to have cP. 2. An insecticidal active ingredient and a pest attractant are contained,
Viscosity of oil or fat and fatty acid and drying oil at room temperature is 750
A pest control agent which is compounded so as to be 0 to 30,000 cP. 3. The pest control agent according to claim 1, wherein the drying oil is sucrose fatty acid ester. 4. The content of sodium chloride is 0.5% by weight.
The pest control agent according to any one of claims 1 to 3, which is the following. 5. The container according to claim 1, wherein the container is capable of extruding the content.
Item 5. A pest control method in which the pest control agent according to any one of items 1 to 4 is contained, and a predetermined amount is extruded to adhere to the surface to be controlled.