TW201601628A - Poison bait for pests - Google Patents

Abstract

The purpose of the present invention is to provide a poison pest bait that pests find appetizing. This poison bait for pests is suitable to centipede control, and contains an insecticidal component and an attractant component. Over time, this solid poison bait absorbs moisture from the atmosphere and the attractant component deliquesces such that the surface of the solid bait becomes covered with the liquefied attractant.

Description

Pest bait

The present invention relates to a bait for pests, and more particularly to a bait for pests suitable for controlling cockroaches.

In the past, in order to control pests such as cockroaches, cockroaches, and ants, there is a method in which pests with high pests and insecticidal components are placed in a place where pests occur, and pests are eaten and prevented.

For example, cockroaches live in grass, sarcophagus, and soil. They use small insects, spiders, crickets, etc. as food. Sometimes they seek food to invade the house or sneak into furniture or shoes. It causes damage to allergic reactions and is therefore the object of prevention and treatment.

In the case of using a bait for controlling cockroaches, it is important to induce cockroaches to fully consume the bait. In order to solve this problem, for example, the following Patent Document 1 discloses an attractant containing at least one of a dry powder containing squid, a dry powder of fish white, and a powder of crab shell, and an attractant and an insecticidal component. Use bait.

Prior technical literature Patent literature

Patent Document 1: Japanese Patent Laid-Open Publication No. 2005-35922

However, even if an attractant is added to the bait, it is due to the hardness of the bait or Softness, size, surface condition, etc., which affect the eating of pests.

In particular, if predatory pests such as cockroaches prey on small insects, it is not possible to place predatory pests as food, and it is difficult for predatory pests to fully consume them.

Accordingly, it is an object of the present invention to provide a bait for pests which is particularly suitable for controlling baits of cockroaches and which has high applicability.

As a result of intensive studies, the present inventors have found that in order to allow the predatory pests of Rugao to fully consume the poison bait, the attracting components contained in the bait agent are deliquescent, and the surface of the poison bait is covered with the deliquescent attracting component. Thereby, the above problems can be solved, and the present invention can be completed.

That is, the present invention is achieved by the following (1) to (2).

(1) A solid-shaped poison bait for pest control, which is suitable for controlling a bait agent of cockroaches, and containing an insecticidal component and an attracting component, and absorbing the moisture in the atmosphere over time to cause deliquescence of the attracting component, thereby forming a surface-forming liquid The state in which the above-mentioned attracting component is covered.

(2) The poison bait for pests according to (1) above, wherein the shortest distance from the surface to the center of gravity of the poison bait is 10 mm or less.

The pest bait agent of the present invention causes the attracting component contained therein to deliquesce and covers the surface of the poison bait with a liquid attracting component. Therefore, the pest in contact with the poison bait is easily regarded as a bait, and the eating property is improved. Can improve the control effect. In particular, it has a high edible property for cockroaches, and it can fully consume insecticidal ingredients, so it is extremely effective for controlling cockroaches.

1A, 1B‧‧‧ poison bait

m‧‧‧The shortest distance from the surface to the center of gravity in the axial direction of the disc-shaped bait

n‧‧‧The shortest distance from the surface to the center of gravity in the axial direction of the cylindrical bait

Fig. 1 (a) and Fig. 1 (b) are photographs showing the state of the pests of the specimens 1 and 2 before being stored in a humidified environment, and Fig. 1 (a) is a pest bait for the specimen 1 Agent, Figure 1 (b) check The pest of the body 2 uses a poison bait.

Fig. 2 (a) and Fig. 2 (b) are photographs showing the state of the pests of the specimens 1 and 2 after being stored in a humidified environment, and Fig. 2 (a) is a pest bait for the specimen 1 The agent (Fig. 2(b) is a poison bait for the pest of the sample 2.

Fig. 3(a) is a photograph showing a state in which a pest of a sample 1 stored in a humidified environment is placed on a poison bait, and a schematic view thereof, and Fig. 3(b) shows a recovered wipe. Photograph of the state of the cloth and its pattern diagram.

Fig. 4(a) is a photograph showing a state in which a pest of a sample 2 stored in a humidified environment is placed on a poison bait, and a schematic view thereof, and Fig. 4(b) shows a recovered wipe. Photograph of the state of the cloth and its pattern diagram.

Fig. 5 (a) and Fig. 5 (b) are schematic views showing the form of the poison bait for pests of the present invention.

Hereinafter, embodiments of the present invention will be described in detail. Here, the description will be made in detail as an example of a preferred object, but it is not excluded to be applied to other pests such as aphids, ball worms, horses, pelicans, ants, and the like.

The poison bait for pests of the present invention (hereinafter referred to as "toxic bait") is characterized in that it contains an insecticidal component and an attracting component, and absorbs moisture in the atmosphere over time to cause deliquescence of the attracting component, thereby forming a surface which becomes liquid. The state of the lure component. Since the surface of the bait agent is covered with a liquid to form a wet state, the pest is easy to eat. Among them, as long as the predatory pests such as cockroaches touch the moisture-containing attracting component (liquid substance), the poison bait is recognized as food and the eating behavior is adopted, so that it is particularly effective for use, and is effective. Prevention and treatment.

Further, the "tidal solution" is a phenomenon in which a substance absorbs moisture in the atmosphere and becomes an aqueous solution. In the present invention, the attracting component in the poison bait has a deliquescent property.

The insecticidal component to be used in the present invention is not particularly limited as long as it has an insecticidal effect on pests, and examples thereof include, for example, chlorpyrifos, dansone, marathon, strontium pine, phenylpyrazine, phoxim, Organophosphorus compounds such as Taosson; urethane-based compounds such as Carbaryl, Propoxur, Nanet, and Sulfuric acid; Yalene, Lenin, Furamethrin, Phthalthrin, fentanin, Phenothrin, cyprodin, pirfenin, Prallethrin, empenthrin, tetrafluthrin Pyrethroid-based compounds such as Transfluthrin), Metofluthrin, and Profluthrin; Metoxadiazone, etc. a bisazole compound; a phenylpyrazole compound such as fenpini; boric acid, borax, Hydramethylnon, dinotefuran, epredamine, and the like. These insecticidal components may be used singly or in combination of two or more.

The amount of the insecticidal component can be appropriately set in consideration of the force price as long as it does not prevent the surface of the poison bait from being surrounded by the liquid by deliquescent of the attracting component. Specifically, it is preferably contained in the bait agent in an amount of 0.1% by weight or more, more preferably 0.5% by weight or more. Further, the upper limit is preferably less than 30% by weight.

The attracting component used in the present invention can select a component which is pest-loving, and has the property of absorbing moisture in the atmosphere and deliquescent as described above. For example, glucose, fructose, galactose, maltose, sucrose, dextrin, granulated sugar, brown sugar, and the like; alanine, glycine, lysine, aspartic acid, glutamic acid, etc. Amino acid and the like. These attracting components may be used alone or in combination of two or more.

The attracting component may be contained in a liquid in the air after being placed in a desired place in the house or outside the house, and may be oozing to the surface of the poison bait, and only according to the shape of the bait agent, The size can be set appropriately.

In the present invention, in order to allow the deliquescent attracting component to exude to the surface of the poison bait, it is related to the shortest distance from the surface to the center of gravity of the poison bait. Furthermore, the center of gravity of the poison bait is not only the center of weight on the axis of the bait, but also the geometric center on the axis.

In the present invention, it is preferred to form the poison bait so that the shortest distance from the surface to the center of gravity of the poison bait is 10 mm or less. By the shortest distance from the surface to the center of gravity of the bait When the distance is 10 mm or less, it is not only an attracting component close to the surface portion of the bait agent, but the internal attracting component also adsorbs moisture in the air to be liquidified, and thus easily exudes to the surface of the poison bait.

Furthermore, the shorter the shortest distance from the surface to the center of gravity of the bait agent, the more easily the attracting component oozes out to the surface of the poison bait, so that if it is a poison bait having a small particle size, the content of the attracting component can be reduced. Therefore, the content of the attracting component in the poison bait can be adjusted according to the shortest distance from the surface to the center of gravity of the bait agent.

Specifically, when the shortest distance from the surface to the center of gravity of the poison bait is less than 2 mm, it is preferable to contain 40% by weight or more of the attracting component in the poison bait based on the weight before deliquescence, and the shortest distance is 2 mm. When it is less than 2.5 mm, it is preferable to contain 60% by weight or more of the attracting component, and when the shortest distance is 2.5 mm or more and less than 6 mm, it is preferable to contain the attracting component by 70% by weight or more at the shortest distance. When it is 6 mm or more, it is preferable to contain 80% by weight or more of the attracting component. Moreover, in order to fully exert the effect of the present invention, it is preferable to set the shortest distance to 10 mm or less.

The form of the poison bait is not particularly limited as long as it is a solid shape, and may be appropriately set. For example, a pellet shape, a powder shape, a column shape, a disk shape, a block shape, a block shape, a paste form, etc. are mentioned. As shown in Fig. 5 (a), when the bait 1A is a disk-shaped preparation, the length of the poisoning bait from the surface to the center of gravity in the axial direction X is set to the shortest distance m, and the amount of the attracting component is appropriately adjusted. As shown in FIG. 5(b), when the poison bait 1B is a long-axis cylindrical preparation, the length from the surface to the center of gravity of the direction in which the poison bait is orthogonal to the axial direction Y (relative to the axial direction) The radius length of the cut surface of Y is set to the shortest distance n, and the amount of the attracting component can be appropriately adjusted.

As described above, by adjusting the content of the attracting component according to the shortest distance from the surface to the center of gravity of the poison bait, the attracting component can be sufficiently made liquid by deliquescence, and the poison bait can be recognized as a pest by the pest. The surface is covered with a liquid. When the content of the attractant component is insufficient, the surface of the poison bait cannot be sufficiently covered with the liquid material, which is insufficient It is not good for the pest to recognize it as food.

In the poisoning bait of the present invention, the attracting component absorbs moisture in the air and deliquesces, so that the surface of the poisoning bait can be kept in a wet state according to changes in humidity of the natural environment or the like. Further, by including a specific amount or more of the attracting component from the surface to the center of gravity of the poison bait as described above, the surface of the poison bait can be covered with a liquid material in a low-humidity environment such as nighttime or winter.

Further, in the case where the target pest is a cockroach, since the cockroach is a nocturnal property, it is preferable to adjust the blending amount of the attracting component so that the deliquescent state can be maintained for one night (for example, 12 to 16 hours).

In the bait agent of the present invention, in addition to the above-described deliquescent attracting component and insecticidal component, various known components may be blended as needed. Examples of other components include an excipient, an antioxidant, a preservative, an anti-feeding agent, a solvent, and the like.

Examples of the excipient include white carbon, diatomaceous earth, crystalline cellulose, clay, kaolin, talc, bentonite, cerium oxide, carboxymethyl cellulose, paraffin, polyethylene glycol, styrene resin, and poly Oxygen resin, etc.

Examples of the antioxidant include erythorbic acid, sodium erythorbate, dibutylhydroxytoluene, dl-α-tocopherol, butyl hydroxyanisole, and propyl gallate.

Examples of the preservative include benzoic acid, sodium benzoate, benzyl benzoate, benzyl salicylate, salicylic acid, sorbic acid, potassium sorbate, dehydroacetic acid, sodium dehydroacetate, and p-hydroxybenzoic acid. Ester, calcium propionate, sodium propionate, cetylpyridinium chloride, and the like.

Examples of the anti-ingestion agent include: denatonium Benzoate, capsicum, and the like.

Examples of the solvent include water; alcohols such as isopropyl alcohol, ethanol, and glycerin; glycols such as propylene glycol and ethylene glycol; and paraffin waxes.

In addition, perfumes, colorants, pH adjusters, and the like may also be used as needed.

Further, in the present invention, it is also possible to use it within a range that does not impair the effects of the invention. Other deceptive ingredients of deliquescent nature, such as: worm powder, corn starch, bee larvae, beef, eggs, krill, prawn, cheese, meat, fish, starch, wheat flour, wheat bran, beans Rice bran, seeds, cottonseed, coconut oil, olive oil, meat oil, fish oil, sesame oil, etc.

As a preparation method of the poisoning bait of the present invention, a known method can be employed, and examples thereof include a method of mixing a raw material component, a method of tableting, a granulation method, and the like.

The bait agent of the present invention is preferably packaged and stored in such a manner that its surface is in a dry state when it is not in use and is in a deliquescent state at the time of use. By setting the non-use state to a dry state, the operability at the time of circulation or storage can be improved. In order to keep the poisoning bait of the present invention in a dry state when it is not in use, for example, it is preferable to store the inside of the container, the bag, etc., which is airtight, together with a desiccant such as silicone, before using the bait, and to maintain the humidity. Very low state.

In the present invention, the inducing component is deliquescent when used, and the deliquescent state of the surface of the poison bait covered by the liquid can be visually confirmed. In addition, a pulp wiping cloth (for example, "Kimwipe S-200" manufactured by Nippon Paper Crecia Co., Ltd.) can be brought into contact with the attractant component in a liquid state for about 5 seconds without applying a load. Confirmed by the phenomenon of the surface of the pulp wiping cloth.

Example

Hereinafter, the present invention will be further illustrated by the following test examples, but the present invention is not limited to the following examples.

<Time test of poison bait>

With respect to 100 parts by weight of the bait base shown in Table 1, 4.5 parts by weight of water and 3 parts by weight of ethanol were added and kneaded, and formed into a columnar shape having a diameter of about 5 mm and a length of about 10 mm as shown in Fig. 5 (b). Poison bait (sample 1, 2). Then, about 1 g of each of the obtained poison baits was stored under the conditions of 20 to 23 ° C and a humidity of 100% for 72 hours.

The state of the newly formed poison bait is shown in Fig. 1 (a) and Fig. 1 (b), and the poison after storage The state of the bait is shown in Fig. 2 (a) and Fig. 2 (b). Fig. 1 (a) and Fig. 2 (a) show the poisoning bait of the specimen 1, and Fig. 1 (b) and Fig. 2 (b) show the bait of the specimen 2.

2(a) and 2(b), it can be seen that the poisoning bait of the sample 1 absorbs the moisture in the atmosphere over time during storage to cause the attracting component to deliquesce, and the surface is formed to be covered by the above-mentioned attracting component which becomes liquid. State. On the other hand, the poisoning bait of the sample 2 did not cause deliquescence of the attracting component, and almost no change in shape was observed before and after storage.

<Humidity confirmation of poison bait>

According to the following formula, about 1 g of the poisoning baits of the specimens 1 and 2 were obtained and the weight-increasing magnification was stored for 72 hours under the conditions of 20 to 23 ° C and a humidity of 100%. Each test piece was tested twice for each sample, and the average value was obtained. The results are shown in Table 2.

Weight gain due to moisture absorption = weight of bait after storage / weight of bait before storage

According to the results of Table 2, the weight gain ratios due to moisture absorption after storage of the poisons of the sample 1 and the sample 2 were not the same, and there was no significant difference. Figure 2 (a) and Figure 2 (b) As shown in the figure, the poison bait of the sample 1 is in a state in which the surface is covered with the liquid material after storage, whereas the poisonous bait of the sample 2 has almost no change, and it can be considered that the sample 1 absorbs the atmosphere over time. The moisture of the attractant component is deliquescent and oozes out to the surface of the poison bait. In contrast, the sample 2 is a poison bait which absorbs moisture as a whole and absorbs moisture into the poison bait.

<Surface test confirmation test of poison bait>

The smear of the specimens 1 and 2 after the above-mentioned storage was cut into a short strip-shaped cloth ("Kimwipe S-200" manufactured by Nippon Paper Crecia Co., Ltd.) of 1 cm width without applying a load. Place on the bait and place for 5 seconds. Thereafter, the wipe was recovered to visually confirm the surface state of the wipe. The results of the sample 1 are shown in Fig. 3 (a) and Fig. 3 (b), and the results of the sample 2 are shown in Fig. 4 (a) and Fig. 4 (b).

The toxic bait of the sample 1 after storage is as shown in Fig. 3(a), and immediately after contact with the cloth, the surface of the toxic bait is covered with a liquid-like attracting component, that is, absorbed by the cloth, as shown in Fig. 3(b). It is shown that the surface of the cloth which is recovered after 5 seconds is also attached to a part of the poison bait together with the attracting component which becomes liquid. On the other hand, regarding the poison bait of the sample 2, as shown in Figs. 4(a) and 4(b), no substance adhered to the surface of the wipe.

From this, it is also known that the surface state of the poisoning bait of the specimen 1 changes with time.

<edible test 1>

The edible properties of the cockroaches were evaluated using the toxic baits of the samples 1 and 2 after storage.

For the first time, a small squid (Scolopendra subspinipes mutilans) with a body length of about 20 cm was placed in a cage of about 1 g (30 cm in length, 50 cm in width, and 40 cm in depth) after the storage of the specimens 1 and 2. Whether to use poison bait when contacting bait. The test was repeated 5 times.

As a result of the test, in the case of using the poison bait of the sample 1, it was confirmed that all the cockroaches were eaten with the poison bait, and in the case of using the poison bait of the sample 2, although all the cockroaches were close to the toxic bait, But did not eat poison bait.

<edible test 2>

With respect to 100 parts by weight of the bait base of Table 3, 4.5 parts by weight of water and 3 parts by weight of ethanol were added and kneaded, and formed into a columnar shape having a diameter of about 5 mm and a length of about 10 mm as shown in Fig. 5 (b). Poison bait (sample 3~5). Then, about 1 g of each of the obtained poison baits was stored under the conditions of 20 to 23 ° C and a humidity of 100% for 72 hours.

Each of the specimens after storage was visually observed to be in a deliquescent state, and the surface of the poison bait was evaluated as "○" by the liquid material covering, and the "X" was evaluated when the deliquescent state could not be confirmed.

The poisoning bait of the specimens 3 to 5 is confirmed to absorb the moisture in the atmosphere over time to cause the attracting component to deliquesce, and the surface is covered with the attracting component which becomes liquid. The results are shown in Table 3.

Then, for the samples 3 to 5, the edible properties of the cockroaches were evaluated before and after storage.

Place one body of about 1g of cage (length 30cm, width 50cm, depth 40cm) before storage and 3~5 of specimens, and place one less than 20cm of thorns in the body for the first time. Whether the bait is used when the bait is used. The person who has eaten is evaluated as "○", and the person who has not eaten is evaluated as "x". The test was repeated 5 times. Moreover, the lethality rate of each sample was also determined. The results are shown in Table 4.

According to the results of Table 4, in the poison bait which has a minimum distance of 2.5 mm from the surface to the center of gravity, if it is a poison bait before storage, the samples 3 to 5 have not confirmed the consumption of the cockroach. However, in the state after the preservation, the poisoning bait of the sample 3 to 5 is an edible rate of 60% or more, and all of them are killed after eating. In particular, the specimen 3 after storage was confirmed to have died by eating all the cockroaches.

<edible test 3>

With respect to 100 parts by weight of the bait base of Table 5, 4.5 parts by weight of water and 3 parts by weight of ethanol were added and kneaded, and formed into a columnar shape having a diameter of about 2 mm and a length of about 5 mm as shown in Fig. 5 (b). Poison bait (sample 6~10). Then, about 0.5 g of each of the obtained poison baits was stored at 20 to 23 ° C and a humidity of 100% for 48 hours.

Each specimen after storage was visually confirmed, and the surface state of the poison bait was observed in the same manner as in <Edible Test 2> described above.

The poison bait of the specimens 6 to 8 is confirmed to absorb the moisture in the atmosphere over time to cause the attracting component to deliquesce, and the surface is covered with the attracting component which becomes liquid, but the poison bait of the specimens 9 and 10 is not confirmed after storage. The phenomenon of deliquescence.

Further, the weight increase ratio due to moisture absorption of the poison bait was determined by the above formula. The results are summarized in Table 6.

Then, with respect to the samples 6 to 10, the edible properties of the cockroaches were evaluated in the same manner as in the above-mentioned <edible test 2>, and the lethality was determined. Further, the bait agent is used in an amount of about 0.5 g. The results are shown in Table 7.

According to the results of Table 7, it can be seen that in the bait agent with the shortest distance from the surface to the center of gravity of 1 mm, the poisonous baits of the samples 6 to 8 were not confirmed to be eaten before storage, but were 100% in the state after storage. The rate of consumption, after eating, all died. On the other hand, the poison baits of the specimens 9 and 10 were hardly eaten in the state after storage, and it was considered that they were not regarded as bait.

<Food Test 4>

With respect to 100 parts by weight of the bait base described in Table 8, 4.5 parts by weight of water and 3 parts by weight of ethanol were added and kneaded, and the ingot was in the form of a disk having a diameter of about 20 mm and a thickness of about 20 mm as shown in Fig. 5 (a). , get bait (samples 11~13). Then, about 5 to 8 g of each of the obtained poison baits was stored at 20 to 23 ° C and a humidity of 100% for 48 hours.

Each of the specimens after storage was visually observed, and the surface state of the poison bait was observed in the same manner as in the above-mentioned <Edible Test 2>.

The poisoning bait of the specimens 11 and 12 is confirmed to absorb the moisture in the atmosphere over time to cause the attracting component to deliquesce, and the surface is covered with the attracting component which becomes liquid, but the poison bait of the specimen 13 is not confirmed to be deliquescent after storage. phenomenon.

Further, the weight increase ratio due to moisture absorption of the poison bait was determined by the above formula. The results are summarized in Table 9.

Then, with respect to the samples 11 to 13, the edible properties of the cockroaches were evaluated in the same manner as in the above-mentioned <edible test 2>, and the lethality was determined. Furthermore, the bait was used in an amount of about 5 to 8 g, and the test was repeated 6 times. The results are shown in Table 10.

According to the results of Table 10, in the bait agent having a shortest distance from the surface to the center of gravity of 10 mm, the samples 11 and 12 containing 80% by weight or more of the attracting component were in a deliquescent state, and the stored bait agent improved the edible properties of the cockroach.

The present invention has been described in detail above with reference to the specific embodiments thereof. It is understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The present application is based on Japanese Patent Application No. 2013-253645, filed on Dec.

Claims (2)

The utility model relates to a poison bait for a solid shape, which is suitable for controlling a bait agent for cockroaches, and contains an insecticidal component and an attracting component, and absorbs moisture in the atmosphere over time to deliquesce the attracting component, thereby forming a surface which becomes liquid. The state of the lure component. The pest of claim 1 is a poison bait, wherein the shortest distance from the surface to the center of gravity of the poison bait is 10 mm or less.