CN1925744A - Method for improving attraction of pest and eating by pest - Google Patents

Abstract

A method of attraction and ingestion improvement for harmful insects, in which with respect to common solid preparations, such as poison bait agents and feed, to be ingested by harmful insects, the harmful insect attracting effect and ingestion quantity can be enhanced easily in a quick acting manner and in which even if such solid preparations are allowed to stand still for a prolonged period of time, they are free from becoming moldy. In the provided method of attraction and ingestion improvement for harmful insects, at the time of application of solid preparations to be ingested by harmful insects, a given amount of liquid, preferably acidic liquid, is fed to the solid preparations.

Description

Methods of improving attraction and feeding of pests

field of invention

The present invention relates to methods of improving the attraction and feeding of pests.

Background of the invention

Controlling pests by chemical and physical methods by attracting pests to be controlled with attractants has been conventionally studied, and practical use has been partially started. For example, poisonous baits for cockroaches and sticky traps for cockroaches are well known. Such attractants may be, for example, dietary attractants such as rice bran, sucrose, syrup, fish meal, polysaccharides, starch, etc. (see, for example, Ikuo Tanaka and 17 persons, "Household harmful insect control", NIPPONKANKYO EISEI CENTER, January 20, ( 2000), p.273-274, 277).

However, only this dietary attractant does not show a sufficient attractant effect, and a method of enhancing the attractant effect is now being studied. For example, an attractant insecticidal device with enhanced attractant effect is known which uses an attractant produced by fermentation which is caused by the establishment of a liquid state due to the injection of large amounts of water into the attractant formulation just before use (e.g., JP-B-6-55096).

However, the attractant insecticidal device described in JP-B-6-55096 involves limitations of attractants, since the attractant is formed by fermentation, and also because such fermentation does not occur quickly, a quick effect cannot be expected, And when allowed to sit for extended periods of time, problematic unsanitary fungal growth can occur.

The present invention has been established in consideration of the above-mentioned circumstances, and an object of the present invention is to provide a method for improving the attracting and feeding of pests, using this method, the attracting effect of pests and solid preparations capable of being ingested by pests, such as common poisonous baits or feed Feed intake can be increased easily and quickly without allowing fungal growth even when left for long periods of time.

Summary of the invention

We tried to solve the above problems, and finally found that after using toxic bait or feed, providing a predetermined volume of liquid is effective for increasing the attracting effect and intake of pests, and fungal growth does not occur even when allowed to stand for a long period of time, thereby The present invention was established. Thus, the present invention has been achieved by the following methods.

(1) A method of improving the attraction and feeding of pests, which comprises, after using a solid preparation that can be ingested by pests, providing a predetermined volume of liquid to the solid preparation.

(2) The method of improving pest attraction and feeding according to (1) above, wherein the liquid is acidic to neutral.

(3) The method of enhancing pest attraction and feeding according to (1) or (2) above, wherein a liquid containing at least one selected from plant paste, fruit paste or malt fermented extract as an attractant is provided.

(4) A liquid for pouring a solid preparation, which is a liquid provided to a solid preparation that can be ingested by pests after using the solid preparation, wherein the liquid is acidic to neutral.

(5) The liquid for pouring into a solid preparation according to (4) above, which contains at least one selected from plant paste, fruit paste, or malt fermented extract as an attractant.

(6) A kit comprising: a solid formulation that can be ingested by pests; and a liquid for pouring the solid formulation according to (4) or (5) above.

Brief description of the drawings

Fig. 1 shows the manner of use of a kit comprising a solid preparation and a liquid for pouring the solid preparation according to the present invention.

In Fig. 1, 1 is a solid preparation container, 2 is an upper cover, 3 is a chassis (body), 4 is a bottom, 5 is a peripheral wall, 6 is an inlet, 7 is a housing cavity (housing), 8 is a solid preparation, 20 is In the liquid container, 22 is an injection nozzle, and 23 is a liquid injection opening.

Best Mode for Carrying Out the Invention

The inventive method of enhancing the attraction and feeding of pests is discussed below with reference to a general example, wherein after using a solid preparation, such as a solid toxic bait, a predetermined volume of liquid such as water is poured over almost the entire solid preparation, and then allowed to stand in a certain position . Solid preparations include pastes, jellies and gels.

In the present invention, the provision of the liquid means that the liquid is provided in an amount to expand the solid preparation, and for example, by pouring 1 to 200% by weight, preferably 25 to 100%, of the liquid on top of the solid preparation based on the total amount of the solid preparation. Finish. Usually, 0.05 to 1.5 ml, preferably 0.1 to 0.5 ml of liquid is provided to about 0.5 to 4.5 g of solid formulation. The amount of the liquid provided can be adjusted so that the desired effect is achieved due to the water content of the solid preparation, and this amount is within the preferred range for the solid preparation when measured by the "loss on drying" described in "Japanese Pharmacopoeia" Loss on Drying)" method test, loss on drying is about 40% or less (2g preparation, reduced pressure, 110 ℃, 5 hours). Due to this provision of the liquid, the pest attracting effect and food intake of the solid preparation are enhanced.

When pouring liquids, it is convenient to provide a kit containing a container for the liquid in combination with a solid formulation. Such a container may be, for example, a bottle or a bag, which may contain and release a liquid, and which has a mechanism allowing the release of a metered volume or may have a spout, or may be marked with graduations. It is also convenient to provide the package with perforated lines.

Figure 1 shows a typical kit and how it is used. The kit consists of a solid preparation container 1 containing a solid preparation and a liquid container 20 containing a liquid. The solid preparation container 1 is composed of an upper cover 2 and a chassis 3 . The upper cover 2 is a molded article formed from a transparent material, such as polyvinyl chloride, and the chassis 3 is a molded article formed from a non-transparent material, such as polyvinyl chloride, wherein the upper cover 2 and the chassis 3 have a circumference of the same shape, They are essentially the same size, allowing them to overlap and fix. It is also possible that the sizes of the circumferences differ from each other.

In the center of the bottom 4 of the chassis 3, peripheral walls 5 are provided, for example, at three locations. These peripheral walls 5 are walls formed in a cone shape at the same intervals at three locations, and inlets 6 are provided as notches in three locations, each inlet between two adjacent peripheral walls 5 . In the housing chamber 7 surrounded by the peripheral wall 5, a solid preparation 8 is placed. At the border between the housing chamber 7 and the inlet 6, dikes 9 for avoiding escape of the solid preparation 8 are provided, and grooves 10 are formed at different levels outside these dikes 9 . Each of these grooves 10 is formed to allow easy entry of pests, and is provided at a level lower than the level of the bottom 4 of the chassis 3, so that the saliva secreted by the pests after biting the solid preparation 8 and any saliva produced by the solid preparation 8 Debris is kept within the groove 10, thereby avoiding any contamination around the kit.

On the other hand, the liquid container 20 has a container body 21 to which an injection nozzle 22 is attached, and a liquid injection opening 23 is provided at the tip of the nozzle. The container body 21 provides graduations, and a screw 24 capable of engaging a cap (not shown) is formed on the portion of the injection nozzle 22 on the side of the container body. It is also possible to form bellows in the container part to allow a constant volume to be provided.

The injection nozzle 22 of the liquid container 20 is inserted through the inlet 6 of the solid preparation container 1, and the container body 21 is put into the opening by a finger to supply liquid droplets to the solid preparation 8 through the liquid injection opening.

As a method of supplying a liquid, the above-mentioned pouring method and a liquid supply carrier for supplying an appropriate amount of liquid to a solid preparation can be used. Typically, an absorbent sheet, such as paper or fabric, is placed in contact with the solid formulation to provide the desired volume to the absorbent sheet from an adjacent container containing liquid. Such placement can be accomplished, for example, by encapsulating the solid formulation on the carrier or wrapping the carrier around part of the solid formulation. The shape of the carrier is not limited to a sheet, and may also be any shape capable of supplying a liquid, such as a rod, a wire, a disc, a block, a wick, a bar, and the like.

The solid preparation according to the present invention can also be an attractant, feed, etc. in addition to being a toxic bait.

In addition to water, the liquid according to the present invention can also be an oily component or a mixture of water and oily components, and the liquid containing various attractants can be used to achieve the improvement of attractant effect and food intake. The oily component may be, for example, vegetable oils such as corn oil, sesame oil, salad oil, etc., and animal oils such as lard, tallow, fish oil, etc., and mixtures thereof. Attractants can be, for example, sugars such as maltose, sorbitol, dextrin, xylitol, granulated sugar, etc., animal oils, such as tallow, fish oil, egg butter, etc., extracts, such as beef extract, onion extract, seafood Food extracts, oyster extracts, chicken extracts, etc., malt fermented extracts, such as malt extracts, beer, brewing yeast, plant pastes, such as potato paste, onion paste, carrot paste, tomato paste, onion paste, etc., Fruit paste, such as apple paste, orange paste, banana paste, etc., seeds, such as black sesame, roasted sesame, etc. Any of these may be used alone or in combination of two or more. Among the ingredients listed above, vegetable pastes, fruit pastes, and malt fermented extracts can give significant results. In addition to the ingredients listed above, a variety of meat and seafood pastes can be used.

If the pH of the liquid is adjusted at acidic to neutral pH, preferably about 2 to 7, by adding buffer substances such as citric acid, phosphoric acid, boric acid, lactic acid and their salts, then the liquid does not occur even when left for a long period of time Fungal growth. Among the above-listed buffer substances, buffer substances having an antifungal effect, such as boric acid, can be used more effectively.

It is also acceptable to use a combination of antifungal agents if desired.

The liquids according to the invention can be made viscous with thickeners such as xanthan gum, gellan gum, guar gum, carrageenan, locust bean gum, tara gum ), tamarind gum, Danish agar, carboxymethyl cellulose, starch, etc. Generally, it is preferred to adjust the viscosity of the liquid at 1000 to 3000 cPs/25°C. As a result, sufficient adhesion is achieved after pouring it onto the solid formulation, thereby avoiding any spillage to the surroundings or any leakage. In addition, adjusting the viscosity within the range indicated above prevents the liquid from drying out, thereby allowing the pest attracting effect to be maintained for a long period of time. The thickener may be added in an amount of 0.1 to 10% by weight based on the total amount of the liquid. When sugar is contained, in addition to using a thickener, viscosity adjustment can also be achieved by heating.

Additionally, if desired, the liquid may contain synthetic pyrethrin compounds such as natural pyrethrins, pralethrin, imidarin, tetramethrin, allethrin, transfluthrin, resmethrin, phenylether Permethrin, phenetrin, d, d-T99-cyphenothrin, permethrin, cypermethrin, etofenproxil, cyfluthrin, deltamethrin, bifenthrin, permethrin, formazan Cyanothrin, pyrethrin, metofluthrin, profluthrin, S-1864 (SUMITOMO KAGAKU KOGYO), etc.; organophosphorus compounds, such as dichlorvos; carbamate compounds, such as propoxur, etc. ; oxadiazol compounds, such as oxadiazol, etc.; sulfonamide compounds, such as amidoflumet, etc.; nicotinoid compounds, such as dinotefuran, clothhianidin, nitramine Pyridine, acetamiprid, imidacloprid, etc.; pyrazole compounds, such as fipronil, etc.; insecticidal essences, such as menthol, benzyl alcohol, etc.; boron compounds, such as boric acid, borax, etc.; Fenazole, chlorphenapyr, emamectin, thiamethoxam, azinone, isopropylmethylphenol, etc.; antifungal preservatives such as benzyl ammonium benzoate, p- Hydroxybenzoate, boric acid, potassium sorbitan, sodium benzoate, etc.; antioxidants, such as BHT, BHA, etc.; UV absorbers, such as benzotriazole compounds, triazine compounds, etc.; pseudofeeding preventive agents, Such as capsicum extract, acetylated sucrose, benzyl ammonium benzoate, capsicum gum, etc.; colorants, such as Yellow#4, caramel color, etc.; pigments, such as carbon black, titanium, etc.; Preservatives, such as sodium sorbitan, sodium benzoate, etc.

An insecticide in an amount of about 0.01 to 90% by weight, an antioxidant in an amount of about 0.01 to 1% by weight, and an ultraviolet absorber in an amount of about 0.01 to 1% by weight can be incorporated based on the total amount of the liquid of the present invention agent, a pseudo-feeding preventive agent in an amount of about 0.01 to 1% by weight.

The inventive method of improving the attraction and feeding of pests can be used for a variety of pests, and it can rapidly improve the attracting and feeding especially in cockroaches such as German cockroaches (Blattella germanica) and smoke-colored cockroaches (Periplaneta fuliginosa). Typically, a relative increase in food intake was achieved within 60 minutes when compared to food intake of the solid formulation alone.

Although preferred liquids are exemplified below, they do not limit the invention.

(Liquid 1)

Malt fermented extract 50.00% by weight

Powdered sugar 10.00% by weight

Reduced dextrin 20.00% by weight

Xanthan gum 0.30% by weight

Boric acid 2.00% by weight

Benzyl ammonium benzoate 0.01% by weight

Water The remainder

Total 100.00% by weight

(liquid 2)

Onion Extract 50.00% by weight

Liquid sugar 20.00% by weight

Powdered sugar 10.00% by weight

Xanthan gum 0.10% by weight

Boric acid 2.00% by weight

Benzyl ammonium benzoate 0.01% by weight

Water The remainder

Total 100.00% by weight

(liquid 3)

Brewer's yeast 25.00% by weight

Liquid sugar 20.00% by weight

Powdered sugar 10.00% by weight

Reduced dextrin 25.00% by weight

Xanthan gum 0.10% by weight

Boric acid 2.00% by weight

Benzyl ammonium benzoate 0.01% by weight

Water The remainder

Total 100.00% by weight

(liquid 4)

Malt ferment extract 25.00% by weight

Maltose 25.00% by weight

Powdered sugar 10.00% by weight

Reduced dextrin 20.00% by weight

Gum Arabic 0.10% by weight

Water The remainder

Total 100.00% by weight

(liquid 5)

Maltose 25.00% by weight

Powdered sugar 20.00% by weight

Liquid sugar 35.00% by weight

Xanthan gum 0.10% by weight

Starch 3.00% by weight

Water The remainder

Total 100.00% by weight

(Liquid 6)

Vegetable paste 30.00% by weight

(onion paste: potato paste = 1:2)

Malt ferment extract 20.00% by weight

Granulated sugar 12.00% by weight

Salad oil 1.50% by weight

Potassium sorbitan 0.10% by weight

Chilli flavor 0.50% by weight

Caramel coloring 1.00% by weight

Water The remainder

Total 100.00% by weight

Example

The present invention is further described in the following examples, which are not intended to limit the present invention.

(experiment 1)

In a drum having a diameter of 1 m, 150 German cockroaches (50 adults and 100 larvae) were charged and acclimatized for 48 hours. During this time period, feed and water are placed to ensure no starvation. Afterwards, feed and water were removed from the bucket, and one piece each of the test formulations shown in Table 1 was placed in the center of the adhesive (9 cm x 6 cm) to form a trap. The resulting 4 traps were then placed in buckets at a time, and 24 hours later, German cockroaches captured in each trap were counted to compare the attracting effect. The test was repeated twice and the totals are also shown in Table 1. The commercially available poisonous bait used was 2 g of EARTH GOKIBURI HOUSAN DANGO CONCGOKIN-JAM (manufactured by EARTH CHEMICAL). The pH of the water used in this test was about 7.6.

Table 1 Test formulations and results test preparation Number of cockroaches caught 1. Commercially available poisonous bait swollen by pouring 2ml of water 106 2. Make the commercial toxic bait liquid by mixing with 2ml water 61 3. Commercially available toxic baits 45 4. 2ml of water contained in the container 14

As shown in Table 1, Test Formulation 1 performed according to the method of the present invention showed a significantly improved attractant effect on German cockroaches.

(experiment 2)

100 German cockroaches, water and cover were placed in a test bucket (39cm x 29cm, height: 18cm) and acclimatized for 24 hours. The test formulations shown in Table 2 were then lined up and food intake (mg) was measured after 24 hours. The test was repeated twice and the average values are shown in Table 2. The commercially available poisonous bait used was 2 g of EARTH GOKIBURI HOUSANDANGO CONC GOKIN-JAM (manufactured by EARTH CHEMICAL). The pH of the water used in this test was about 7.6, and the pH of the 25% aqueous solution of the malt extract was about 4.6.

Table 2 Test formulations and results test preparation food intake 5. Commercially available poisonous bait swollen by pouring 1ml of water 387 6. Commercially available toxic bait swollen by pouring 1ml of a 25% aqueous solution of malt extract 552 7. Commercially available toxic baits twenty one

As shown in Table 2, test formulations 5 and 6 performed according to the method of the invention showed an increased attractant effect on German cockroaches at increased food intake.

(Experiment 3)

50 German cockroach adults, water and cover were placed in a test bucket (39 cm x 29 cm, height: 18 cm) and acclimatized for 24 hours. Commercially available poisonous baits swollen by pouring 0.1-0.3 g/block of the liquid 6 shown above dropwise, about 2 to 3 g of solid feed (ORIENTAL YEAST) and solid feed only were lined up and cumulative inducements were counted after 1, 3, 5, 10, 15, 20 and 30 minutes. The test was repeated 5 times and the total count was expressed as the cumulative number of inducements. The results are shown in Table 3.

(experiment 4)

A test similar to Experiment 3 was carried out with 30 adult cockroaches. The results are shown in Table 3.

Table 3 Cumulative number of lured German cockroaches 1 minute 3 minutes 5 minutes 10 minutes 15 minutes 20 minutes 30 minutes pour solution 3 57 145 186 218 237 247 no pour solution 0 26 61 85 103 120 124

Cumulative number of lured smoky cockroaches 1 minute 3 minutes 5 minutes 10 minutes 15 minutes 20 minutes 30 minutes pour solution 2 14 30 48 58 64 68 no pour solution 1 8 14 30 35 41 46

As shown in Table 3, the application of the method of the present invention allowed the cumulative number of attractants to increase by about 1.5 to 2 times, indicating an increased attractant effect.

Industrial applicability

According to the method for improving the attracting and feeding of pests of the present invention, the pest attracting effect and feeding amount of solid preparations capable of being ingested by pests, such as common poisonous baits or feeds, can be easily and quickly improved. Furthermore, there was no fungal growth even after standing for a long period of time.

Claims (6)

CLAIMS 1. A method of improving the attraction and feeding of pests, which comprises, after using a solid preparation that can be ingested by pests, providing a predetermined volume of liquid to the solid preparation. 2. The method of improving the attraction and feeding of pests according to claim 1, wherein said liquid is acidic to neutral. 3. The method for improving the attraction and feeding of pests according to claim 1 or 2, wherein a liquid containing at least one selected from plant paste, fruit paste or malt fermented extract as an attractant is provided. 4. A liquid for pouring a solid preparation, which is a liquid provided to a solid preparation that can be ingested by pests after using the solid preparation, wherein the liquid is acidic to neutral. 5. The liquid for pouring into a solid preparation according to claim 4, comprising at least one selected from plant paste, fruit paste, or malt fermented extract as an attractant. 6. A kit comprising: a solid formulation that can be ingested by pests; and a liquid for pouring the solid formulation according to claim 4 or 5.