JPH07316007A - Method for controlling noxious insect and biting action inducing substance - Google Patents

Abstract

PURPOSE:To provide a method and agent for controlling noxious insect and capable of sufficiently exterminating insects by the application of a small amount of the agent to reduce the control cost and prevent the hygienic problems caused by the use of chemicals. CONSTITUTION:A substance inducing biting action is applied to a part of the body of a noxious insect. An insect free from the substance (non-applied insect) is induced to bite and kill the applied insect. The biting action inducing substance contains at least one kind of active component attachable to at least a part of the body of the noxious insect and inducing a non-applied insect to bite the applied insect and selected from inorganic powder, clay mineral powder, mineral powder, carbonized powder, calcined powder, organic powder, organic material and metal powder. Wax on the body surface of ant is especially effective as the inducing substance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling pests and a substance for inducing biting behavior, and in particular, a method for controlling pests by effectively removing the pests by the biting action by the same pest, and its control method. The present invention relates to a biting behavior inducer applied to the method.

[0002]

2. Description of the Related Art Conventionally, in order to control pests, a chemical such as an insecticide is sprayed to directly kill or weaken the pest, and a chemical such as a repellent which the pest dislikes is sprayed. Are being carried out to prevent such entry. However, the use of such a drug is harmful to the human body and pets, a large amount is required to obtain its effect sufficiently, and the harmfulness becomes large, and it is also a cost problem. .

Among the pests, ants do not directly harm humans and animals, but since they have an adverse effect on their livelihoods, they are controlled, and anticides and the like are used as agents for their control. However, since its toxicity is generally strong, its use is problematic. In research on ant ecology,
If you feed ants with food mixed with diatomaceous earth powder and let them eat diatomaceous earth powder, or if you put ants in a container with diatomaceous earth powder laid below them, diatomaceous earth powder will adhere to the ants. Then, it is reported that the ingested diatomaceous earth powder or the adhered diatomaceous earth powder causes scratches on the ant's digestive organs and body surface, causing water to evaporate from the digestive organs and body surface portion, resulting in death. Has been done. Such ecology is also known for other species of grain pests. In addition, it has long been known that insects, mites, etc. die by being covered with fine powder, and there are reports of lethal effects of finely divided minerals on termites, cockroaches, and mites. It shows the effect of the case of being covered by.

[0004]

[Problems to be solved by the invention] The problem of whether or not ants and other pests could be controlled by using the results of the above-mentioned research on ant ecology was examined. In order to do so, it is necessary to feed ants with diatomaceous earth powder, or to attach ants with diatomaceous earth powder, and in particular it is quite difficult to feed diatomaceous earth powder. Even if it is done, a large amount of diatomaceous earth powder must be sprayed, and it is considered difficult to put it into practical use. It is necessary to develop a method capable of efficiently controlling many pests by using an agent capable of controlling pests sufficiently effectively by using a small amount of a drug or the like. In particular, it is desirable to provide a highly efficient control agent that can be used in the method.

[0005]

Means for Solving the Problems The present inventors have conducted intensive studies as a result of finding out a pest control technique capable of solving the above-mentioned problems, such as a termite,
After applying powder of talc or activated charcoal to individuals with pests,
When a non-applied individual of the same species as the pest was present there, it was found that the non-applied individual bites the applied individual, and its action was analyzed, and the talc and activated carbon powders described above were applied. By attaching to a part of the body of an individual,
It was found that by blocking, converting, or absorbing the signal confirming that the individual is a sibling, the effect of confirming that the individual is a sibling is lost, and the biting behavior of the non-applied individual to the applied individual is induced. The present invention has been completed by clarifying that the powder of talc or activated carbon described above serves as a substance that induces biting behavior. Furthermore, while researching a substance that effectively induces biting behavior against pests, it was found that wax is preferable, and ant body surface wax is particularly excellent as the substance.

The present invention was able to solve the above problems by the following means. (1) By applying a biting behavior-inducing substance to pests,
Inducing bite behavior in the non-application animals of the pest to cause death
A method for controlling harmful insects, which comprises controlling the applied harmful insects. (2) An inorganic powder, a clay mineral powder, which is capable of adhering the biting behavior-inducing substance to at least a part of the body of a pest, and has an action of inducing a biting behavior of an individual to whom the pest is not applied Mineral powder, carbonized powder, fired powder, organic powder,
The method for controlling pests according to item (1), which is at least one selected from organic materials and metal powders. (3) An inorganic powder, a clay mineral powder, a mineral powder, a carbonized powder, which can be attached to at least a part of the body of the pest and has a function of inducing a bite behavior of the non-applied individual to which the pest is not applied A bite-behavior-inducing substance comprising at least one selected from powder, organic powder, organic material and metal powder as an active ingredient. (4) A pest biting behavior-inducing substance, which comprises wax as an active ingredient. (5) A pest biting behavior inducing substance comprising an ant body wax as an active ingredient.

The present invention applies a biting behavior-inducing substance to a pest so that another individual who is a sibling of the pest and has not been applied (non-application individual) induces biting behavior toward the application individual. A method for controlling pests, which is characterized by controlling the above-mentioned individual by dying, and inorganic powder, clay mineral powder, mineral powder, carbonized powder, calcined powder, organic powder, organic material that can adhere to the body of the pest. The present invention relates to a stabbing behavior inducing substance, which comprises at least one selected from wood and metal powder as an active ingredient. In the present invention, the biting behavior-inducing substance is a generic term for substances that induce the biting behavior of non-application individuals of the pest by blocking, converting, or absorbing a signal that confirms that they are siblings. It is a thing. As the inorganic powder, alumina, titanium oxide, boric acid, zinc, oxides and non-oxides of other metals, calcium carbonate, sodium bicarbonate, natural zeolite, artificial zeolite, shirasu, fly ash, silicic anhydride, fine powder Silica gel and the like.

Examples of the clay mineral powder include zeolite, bentonite, clay and talc. Examples of the carbonized powder include activated carbon and wood ash. Examples of the calcined powder include vitreous volcanic rock calcined powder, vitreous volcanic ash calcined powder, porcelain powder, pottery powder, and other ceramic powder. Organic materials include gel, sol and solid surfactants at room temperature,
Examples thereof include soap, wax, wax, other oils and fats, plastic powder, synthetic resin powder (thread), grain powder such as soybean, non-woven fabric powder, fragrance (natural / synthetic / prepared), and pigment.

Of the above-mentioned organic materials, wax is preferably used. There are various kinds of waxes, and these appear to induce pest-causing behavior in other non-applied individuals by covering the surface of the pest body, but the mechanism is not clear. In the case of ants, body surface wax is effective. Among them, termite body surface wax is particularly preferred as a substance that gives excellent effects, and a substance having a chemical structure similar to that of the substance forming the wax also has the same action. Since the termite body surface wax is a mixture of hydrocarbons having a carbon number of 26 to 30, and the Yamato termite body surface wax is a mixture of hydrocarbons having a carbon number of 23 to 28, a mixture of such hydrocarbons is used in the present invention. Is included in the above-mentioned body surface wax. To give but one example of the composition of the mixture of such hydrocarbons, for _{example, n-C 26: 14.63%} , n-C 27: 7.32%,
_{n-C 28: 60.98%,} n-C 30: 17.01% of those _{and, n-C 23: 15.56%} , n-C 25: 62.22
%, N-C _28: is 22.22%. Examples of the organic powder include soybeans, corn, kinako, coffee beans, other starches, plants, seeds and the like. Examples of the metal powder include iron, zinc, copper, aluminum and silver. You may use it in combination of at least 1 type or more of the above.

The pests targeted by the present invention include:
The ant family of Hymenoptera, Vespidae; the termite family of the order Termite can be exemplified. Specific examples thereof include ant family, ant family antler, house ant, black ant, black ant, luriari, etc., vespid family, cross wasp, yellow hornet, crocodile wasp, etc. . In the present invention, the method of applying the biting behavior-inducing substance to the pest is not particularly limited, and any method can be adopted as long as it can be applied to a part of the body surface / leg of the pest. As a specific example of the application method, for example, by dissolving the inducing substance in a suitable solvent, emulsifying and dispersing using a dispersant, a solubilizer, or as an aerosol agent, or sprinkled on bait, The powder may be applied as it is to the pest by spraying or spraying it onto the path of the pest, or by placing the powder directly on the path of the pest so that the powder can adhere to the body surface of the pest.

The amount of the above substance applied to pests is
It may be attached to at least a part of the body of the pest, and may be attached to the entire body surface / leg. Specific application rate is 100 g / m ² or more, preferably 150 g
/ M ² or more, but the amount may vary depending on the type of substance used. Although the upper limit amount is not so good that it is better, it may be appropriately set according to the situation in view of environmental problems and cost. It is preferable that the particles of the above substance are fine powders, and the average particle size of the particles is 300 μm or less, preferably 60 μm.
m or less. The lower limit need not be particularly limited,
The smaller the particle size, the higher the cost, and the effect does not increase accordingly. Therefore, it is preferable to limit it to a practical range. In the present invention, if necessary, various drugs,
Additives and substances that impart an electrostatic charge and have adhesion performance can be blended.

[0012]

In accordance with the present invention, the biting behavior-inducing substance is attached to a part of the body of the pest to induce the biting action in an individual to which the substance does not attach and attack the individual to which the substance is attached. By doing so, the individual or population of the pest can be controlled very effectively, and in the case of a pest that forms a colony, the attacked side of the siblings consumes or kills body fluids or physical strength. , It is expected that the delicate individual habitat balance within the colony will be disrupted, leading to the collapse of the colony. The amount of adhesion of the substance to the pest is sufficient if the substance is allowed to walk on fine powder and adhere to the abdomen or the like, and it is not necessary to cover the whole body.

In the case of ants, the body surface of the ants is covered with wax, which secretes substances for sibling recognition. According to the present invention, by attaching the fine powder to the body surface of an ant, the body surface is covered and it becomes impossible to recognize whether or not it is a sibling. The soldier ant decides that the sibling (applied individual) in the above state is different and attacks. If the fine powder is adsorptive, it absorbs the cognitive components and makes it odorless, and if it is odorous such as organic matter, it cannot be recognized as a sibling and is judged to be a different species and attacks. In other words, due to the effects of masking, etc., it cannot be judged as a compatriot, and the soldier ant attacks. In this case, not only the body surface wax of ants but also a mixture of hydrocarbons composed of a substance having the same chemical structure as the substance constituting the wax has the same function, and therefore, these are also included in the body surface wax. is there.

[0014]

[Examples] Next, examples of the present invention and test examples are described below.
The method for producing the aerosol, the wettable powder and the emulsion will be described in more detail. Example 1 Various preparations were obtained by a conventional method using the bite-behavior-inducing substances shown in Table 1 below. In the table, POE means polyoxyethylene.

[0015]

[Table 1]

Example 2 2.5 g of carnauba wax which was solid at room temperature, 0.5 g of an emulsifying dispersant [Tokushiru (manufactured by Tokuyama Soda), Nikkor MYS-25 (Nikko Chemicals)] and 47 g of water were mixed and stirred to obtain an emulsion. This was stored in an appropriate container as it was to obtain the emulsion-type bite-behavior-inducing substance of the present invention. Test Example 1 A fine ant, a work ant after treatment with liquid paraffin (Yes termite) was put in a petri dish having a diameter of 3 cm, and an untreated soldier ant (Yes termite) was released, and the soldier ant bites the worker ant after 2-3 minutes. About one hour later, the worker ant died. On the other hand, when one untreated worker ant and one soldier ant were released to a new petri dish with a diameter of 3 cm, no biting behavior of the soldier ant was observed. Even when quina powder was used instead of fine powder or liquid paraffin, the biting behavior was induced in non-applied individuals, and extremely high control activity was obtained.

Example 3 A behavior of a termite soldier ant against a termite termite worker ant was investigated by applying a suspension of a Yamato termite body surface wax to the termite termite worker ant and adding a termite termite soldier ant to the termite termite worker ant. The bioassay method for that purpose was performed as follows. (Bioassay method) A fixed amount of a sample (body surface wax or hydrocarbon) and a 2% ethylene glycol methyl ether aqueous solution are placed in a small container, heated to 50 ° C., and treated in an ultrasonic cleaner for 30 minutes. Place 1 μl of suspension on the back of termite workers. After that, at room temperature for 15 minutes, put in a small petri dish with a diameter of 3 cm, and at the same time put termite soldier ants for observation. The results of the action are shown in Table 2.

[0018]

[Table 2]

Example 4 A suspension of a termite body surface wax was applied to a Yamato termite worker ant, and a Yamato termite soldier ant was added to the Yamato termite worker ant, and the behavior of the Yamato termite soldier ant against the Yamato termite worker ant. investigated. The result of the action is shown in Table 3.

[0020]

[Table 3]

Example 5 The following standard hydrocarbon mixture (I) was used as a hydrocarbon mixture similar to termite body surface wax, and its suspension 1 was used.
A microliter (containing 0.01 mg) was applied to a Yamato termite worker ant, and the Yamato termite soldier ant was put together with the Yamato termite worker ant to investigate the behavior of the Yamato termite soldier ant against the Yamato termite worker ant. [Standard hydrocarbon mixture (I) Composition of] _{n-C 26: 14.63%,} n-C 27: 7.
_{32% n-C 28: 60.98} % n-C 30: 17.
01% The result of the action is shown in Table 4.

[0022]

[Table 4]

Example 6 The following standard hydrocarbon mixture (II) was used as a hydrocarbon mixture similar to termite body surface wax, and its suspension 1 was used.
The microliter (containing 0.01 mg) was applied to the termite worker ant, and the termite soldier ant was also put in the termite worker ant to investigate the behavior of the termite worker ant against the termite worker ant. [Standard hydrocarbon mixture (II) of the composition] _{n-C 23: 15.56%,} n-C 25: 62.
22% n-C ₂₈ : 22.22% The results of the action are shown in Table 5.

[0024]

[Table 5]

Example 7 Trichocene (hydrocarbon mixture having 23 carbon atoms) was used as a hydrocarbon mixture similar to termite wax, and 1 μL (containing 0.01 mg) of the suspension was applied to a termite worker. I put a termite soldier ant in the termite worker ant together and investigated the behavior of the termite soldier ant against the termite worker ant. The result of that action is the sixth
As shown in the table.

[0026]

[Table 6]

Example 8 Triacontane (hydrocarbon mixture having 30 carbon atoms) was used as a hydrocarbon mixture similar to termite body surface wax, and 1 μl (containing 0.01 mg) of the suspension was applied to Yamato termite workers. Then, Yamato termite soldier ants were put in the Yamato termite worker ants together, and the behavior of the Yamato termite soldier ants against the Yamato termite worker ants was investigated. The result of the action is shown in Table 7.

[0028]

[Table 7]

[0029]

As described above, according to the present invention, when there is an individual to which a biting behavior inducing substance is applied, an individual who does not apply the biting action induces a biting behavior and bites the individual to which the above is applied to die. By doing so, the target pest can be controlled extremely effectively. For example, in the case of ants, an individual having the substance attached to the body undergoes a biting behavior by another individual when returning to the nest, and therefore has a wide range of effects. Further, in the present invention, it may be used so that it adheres to a part of the body of the pest, and since it does not require a large amount of the drug such that the pest is directly killed, its cost is low and it causes phytotoxicity. There are few problems.

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Claims (5)

[Claims] 1. A pest insect characterized by applying a stab biting action inducing substance to a pest to induce a stab biting action to an individual to whom the pest has not been applied to cause death and to control the pest to be applied. Control method. 2. An inorganic powder or a clay mineral, wherein the biting behavior-inducing substance is capable of adhering to at least a part of the body of a pest, and has an action of inducing a biting behavior of an individual to whom the pest is not applied. The pest control method according to claim 1, which is at least one selected from powders, mineral powders, carbonized powders, calcined powders, organic powders, organic materials, and metal powders. 3. An inorganic powder, a clay mineral powder, which is capable of adhering to at least a part of the body of a pest, and has an action of inducing a biting behavior of an individual to whom the pest is not applied,
A stabbing behavior-inducing substance, which comprises at least one selected from mineral powder, carbonized powder, calcined powder, organic powder, organic material and metal powder as an active ingredient. 4. A pest biting behavior-inducing substance comprising wax as an active ingredient. 5. A pest biting behavior inducing substance comprising an ant body surface wax as an active ingredient.