JP2015093847A - Honeycomb penetration aid - Google Patents

Abstract

The present invention provides a suitable beehive penetration aid that is blended in a beehive surface treatment agent containing a bee control component and assists the penetration of the bee control component into the beehive. The above-mentioned honeycomb is a saturated hydrocarbon having a surface tension in the range of 23 to 27 mN / m (20 ° C.) and blended in a beehive surface treatment agent containing a bee control component in an amount of 50 w / v% or more. Bee nest penetration aid as a bee control ingredient. The saturated hydrocarbon is preferably a paraffinic hydrocarbon, especially normal paraffin. [Selection figure] None

Description

The present invention relates to a beehive penetration aid.

In recent years, the development of residential land such as hilly areas around the city has increased, and inquiries and complaints regarding bees are increasing among pests. There are about 3000 types of bees known in Japan. Among them, about 20 types of bees have strong bite characteristics, and there are many products for controlling bees such as aerosols, etc. due to the increase in human damage caused by these. Yes.
2. Description of the Related Art Conventionally, a drug having a rapid action is required for controlling bees. For example, in JP-A-1-299202 (Patent Document 1), 2-methyl-4-oxo-3- (2-propynyl) cyclopenta A bee control agent containing 2-enyl chrysanmate as an active ingredient has been proposed. Japanese Patent Application Laid-Open No. 2009-173608 (Patent Document 2) discloses a composition containing metofluthrin and tetramethrin as active ingredients as a bee-controlling composition having a further rapid effect. The control effect is not satisfactory.
By the way, in the removal work of the beehive, there may be a work situation with danger, such as when it is necessary to remove a large number of bees or it is necessary to confront a highly aggressive bee such as a wasp. . Therefore, in order to avoid these dangers, development of a bee nesting control preparation that can be processed in advance in a bee nest or a place where bee nesting is expected has been desired.

Therefore, the inventors of the present application disclosed in Japanese Patent Application No. 2013-167321 (Patent Document 3), a useful bee nesting aerosol agent, that is, “(a) a non-volatile pyrethroid insecticide, (b) bee nesting”. In an aerosol preparation comprising a higher fatty acid ester compound having a boiling point of 180 ° C. or more as a controlling component, and (c) an aerosol stock solution containing a saturated aliphatic hydrocarbon solvent having 12 to 18 carbon atoms, and (d) a propellant. The blending ratio (a) / (b) of the (a) non-volatile pyrethroid insecticide component and the (b) higher fatty acid ester compound having a boiling point of 180 ° C. or higher is 1/5 to 1/50 mass ratio. , An aerosol agent for bee nesting control. Patent Document 3 focuses on the formulation of an aerosol, but as a result of further diligent study, the inventors of the present invention have investigated the surface of the beehive, particularly in the preparation for controlling the surface of the beehive. Based on the research on the structure, it was found that it is important to efficiently infiltrate the drug from the honeycomb surface, and the present invention has been completed.

JP-A-1-299202 JP 2009-173608 A Japanese Patent Application No. 2013-167321

It is an object of the present invention to provide a suitable beehive penetration aid that is blended in a beehive surface treatment agent containing a bee control component and assists the penetration of the bee control component into the beehive.

As a result of intensive studies by the present inventors, the present invention has been found that the following constitution has an excellent effect for achieving the above object.
(1) The bee control component which is a saturated hydrocarbon having a surface tension in the range of 23 to 27 mN / m (20 ° C.) and blended in a beehive surface treatment agent containing a bee control component in an amount of 50 w / v% or more. Beehive penetration aids.
(2) The beehive penetration aid according to (1), wherein the saturated hydrocarbon is a paraffinic hydrocarbon.
(3) The beehive penetration aid according to (2), wherein the paraffinic hydrocarbon is normal paraffin.
(4) The honeycomb penetration aid according to any one of (1) to (3), wherein the beehive surface treatment agent is an aerosol stock solution and a propellant is added thereto to form an aerosol.
(5) The beehive penetration aid according to any one of (1) to (4), wherein the beehive surface treatment agent contains at least one pyrethroid insecticidal component as the bee control component.

The beehive penetration aid of the present invention effectively assists the penetration of the bee control component into the beehive when applying the beehive surface treatment agent containing the bee control component to the beehive. The practicality is extremely high.

In the beehive surface treatment agent used in the present invention, at least one pyrethroid insecticidal component is used as a bee control component.
Here, pyrethroid insecticides include cyfluthrin, phenothrin, ciphenothrin, permethrin, resmethrin, phthalthrin, tralomethrin, bifenthrin, imiprotorin, cypermethrin, etofenprox, empentrin, transfluthrin, methfluthrin, profluthrin, monfluorothrin, Examples include terareslin, allethrin, praretrin, and pyrethrin.
As a treatment agent for bees and beehives, a mixture of cyfluthrin and phthalthrin is preferable in consideration of the need for immediate effect in addition to the long-term control effect.
The amount of the bee control component containing at least one of these pyrethroid insecticides is 0.01 to 3.0 w / v%, preferably 0.1 to 1.0 w / v% in the beehive surface treatment agent. Is appropriate. If it is less than 0.01 w / v%, a sufficient control effect cannot be obtained. On the other hand, if it exceeds 3.0 w / v%, no special merit is obtained. In addition, when the optical component and the geometric isomer based on an asymmetric carbon exist in the acid component and alcohol part of a pyrethroid type compound, of course, each of these and arbitrary mixtures are also included by this invention.

As long as the effects of the present invention are not inhibited, other pest control components can be blended in addition to the pyrethroid insecticides described above. Examples include neonicotinoid insecticides such as dinotefuran, organophosphorus insecticides such as fenitrothion, silicon insecticides such as silafluophene, and carbamate insecticides such as propoxle, but are not limited thereto.

The inventors of the present invention thoroughly observed bee habits and beehive morphology, and proceeded with the development of a beehive surface treatment agent containing a bee control component. As a result, as a beehive surface treatment agent, the bee control component has a good affinity after penetrating from the beehive surface to the lower layer portion, and the penetration state into the inside is appropriate, and this penetration state is We found it important to study suitable beehive penetration aids to adjust and assist.
By the way, the surface structure of the beehive is formed mainly by mixing a material such as wood with saliva secreted by bees and extending it thinly, and saliva accounts for 50% or more of the beehive weight per dry weight. The composition of saliva is similar to sericin, a silkworm cocoon component, and is known to be mainly composed of polar amino acids such as proline and serine.
The present inventors diligently studied the optimum honeycomb nest penetration aid using the beehive in consideration of the affinity with both the woody component and the polar amino acid, and completed the present invention. It has come.

That is, the present invention specifies a saturated hydrocarbon having a surface tension in the range of 23 to 27 mN / m (20 ° C.) as a beehive penetration agent blended with a beehive surface treatment agent containing a bee control component. And 50% w / v or more based on the total amount of the beehive surface treatment agent.
If the surface tension of the saturated hydrocarbon is less than 23 mN / m (20 ° C.), the surface treatment agent may be excessively spread on the surface where the honeycomb surface is smooth, or the saturated carbonization constituting the surface treatment agent. Only hydrogen tends to penetrate excessively from the surface of the honeycomb to the inside. On the other hand, when the surface tension of the saturated hydrocarbon exceeds 27 mN / m (20 ° C.), the permeability as the surface treatment agent is deteriorated and the affinity with the honeycomb component is inferior, so that the effective control effect is obtained. It is difficult to play.

Examples of the saturated hydrocarbon include paraffinic hydrocarbons and naphthenic hydrocarbons. As a result of the test, paraffinic hydrocarbons are preferable, and among normal paraffins and isoparaffins, normal paraffins are preferable in terms of performance. Was recognized. As the normal paraffin, those having 12 to 14 carbon atoms are typical, for example, neothiozole [25.8 mN / m (20 ° C.)] manufactured by Chuo Kasei Co., Ltd., normal paraffin N-12 manufactured by Japan Energy Co., Ltd. [25.4 mN / m (20 ° C.)], Normal Energy N-13 [25.7 mN / m (20 ° C.)] manufactured by Japan Energy, Normal Paraffin N-14 [26 mN / m (25) manufactured by Japan Energy ° C)] and the like.

On the other hand, as isoparaffin, those having 12 to 16 carbon atoms are easy to use. For example, IP solvent 1620 [24 mN / m (23 ° C.)] and IP solvent 2028 [26.1 mN / m (made by Idemitsu Oil Co., Ltd.) 23 ° C.)], Isopar M [25 mN / m (20 ° C.)] manufactured by Exxon Chemical Co., Ltd., Shellsol TK [25 mN / m (20 ° C.)] manufactured by Shell Chemical Co., Ltd., and the like. Not.
Moreover, as a naphthene type hydrocarbon, the naphthesol 160 [24 mN / m (20 degreeC)] by Japan Energy company, naphthesol 200 [27 mN / m (20 degreeC)], etc. are typical.

In addition, while adjusting the liquidity and the effect of the above-mentioned honeycomb nest penetration aid, in order to prevent the progress of nesting for a long period of time, in particular, the viscosity is in the range of 5 to 15 mPa · s (20 ° C.). The solvent is preferably blended in an amount of 2 to 40 w / v% based on the total amount of the honeycomb surface treatment agent.
Preferred examples of such an organic solvent include one or more selected from fatty acid ester solvents and glycol ether solvents. Specifically, isopropyl myristate [6.6 mPa · s (20 ° C. )], Isopropyl palmitate [10 mPa · s (20 ° C.)], butyl stearate [7.7 mPa · s (30 ° C.)], methyl oleate [5.5 mPa · s (25 ° C.)], isobutyl oleate [ 9.0 mPa · s (20 ° C.)], hexyl laurate, isopropyl isostearate, isononyl isononanoate, triethylene glycol monomethyl ether [7.5 mPa · s (20 ° C.)], diethylene glycol monobutyl ether [6.5 mPa · s ( 20 ° C.)], triethylene glycol monobutyl ether [8.1 Pa · s (20 ° C)], ethylene glycol monobenzyl ether [12.0 mPa · s (20 ° C)], butylpropylene diglycol [7.4 mPa · s (20 ° C)], tripropylene glycol monobutyl ether [8. 2 mPa · s (20 ° C.)], but is not limited thereto. Of these, higher fatty acid esters such as isopropyl myristate, isopropyl palmitate, butyl stearate, and isobutyl oleate having a total number of carbon atoms in the range of 15 to 22 are suitable.

If necessary, the honeycomb surface treatment agent used in the present invention may be mixed with water to form an aqueous liquid agent. In this case, a surfactant or solubilizer is appropriately added as necessary. Examples of such surfactants include ethers such as polyoxyethylene alkyl ethers, polyoxyethylene alkyl phenyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene alkylamino ethers, polyethylene glycol Nonionic surfactants such as fatty acid esters, fatty acid esters such as polyoxyethylene sorbitan fatty acid esters, polyoxyethylene glycerin fatty acid esters, polyoxyethylene styrenated phenols, polyalkalolamides of fatty acids, Anionic surfactants such as polyoxyethylene (POE) styryl phenyl ether sulfate, polyoxyethylene (POE) alkyl ether sulfate, and dodecylbenzene sulfate

Honeycomb surface treatment agents further include fungicides, fungicides, antibacterial agents and fungicides for stabilizers, deodorants, antistatic agents, antifoaming agents Of course, fragrances (including bee repellent fragrances), excipients and the like may be appropriately blended. Examples of acaricides include methyl 5-chloro-2-trifluoromethanesulfonamide benzoate, phenyl salicylate, 3-iodo-2-propynyl butyl carbamate, and the like. Examples include 2-mercaptobenzothiazole, 2- (4-thiazolyl) benzimidazole, 5-chloro-2-methyl-4-isothiazolin-3-one, trifolin, 3-methyl-4-isopropylphenol, ortho-phenylphenol, etc. it can.

In the present invention, the beehive surface treatment agent may be used as an aerosol stock solution, and a propellant may be added thereto to form an aerosol form. In this case, it is appropriate that the aerosol agent is composed of 40-80% by volume of aerosol stock solution and 20-60% by volume of propellant. The content of each component described above per honeycomb processing agent is replaced with the content in the aerosol stock solution. For example, saturated hydrocarbon is 50 w / v% as a honeycomb penetration aid in the aerosol stock solution. The above will be blended.
As the propellant, liquefied petroleum gas (LPG), dimethyl ether (DME), compressed gas (nitrogen gas, carbon dioxide gas, nitrous oxide, compressed air, etc.), or a mixed gas thereof is used. The internal pressure of LPG in the case of using an LPG-based propellant is a preferable injection force [20 gf (25 ° C. or higher)] when spray coating described later, a preferable particle diameter of spray particles [10% volume cumulative particle diameter: 20 to 70 [mu] m] and the like, the range of 0.15 to 0.71 MPa (20 [deg.] C.) is common. For example, when adjusting the internal pressure by adding nitrogen gas, 0.15 to 0.71 MPa. Those in the range of 39 MPa (20 ° C.) are suitable.

In the present invention, the beehive surface treatment agent is also used in places where it is difficult to reach such as the attic and under the eaves, so that the spray force when sprayed onto a target surface 20 cm away is set to 20 gf (25 ° C.) or more. It is preferable. In consideration of adhesion to a woody object, it is appropriate that the 10% particle diameter of the spray particles is set to 20 to 70 μm, preferably 25 to 60 μm (25 ° C.).
In addition, what is necessary is just to select shapes, such as a valve | bulb, a nozzle hole, and a nozzle, suitably for the container filled with an aerosol agent according to the use scene, a use purpose, etc.

The beehive surface treatment agent used in the present invention thus obtained includes beehives in each growth stage, surrounding areas where bees enter and exit, and places where nesting is likely to occur, such as attics, eaves, under roof tiles, trees What is necessary is just to process to the space | gap of a branch, a tree, etc. In addition, when spraying an aerosol agent, about 50-250 mL / m < ² > is suitable as a standard. And according to the present invention, the effect of the bee nest penetration auxiliary agent was used to effectively remove the bees in the nest for 1 to 3 months, and the bee nesting behavior was suppressed, and further, the removal was avoided. Bees can be prevented from returning to the nest, so it is extremely practical.

Examples of the bees that are the subject of the present invention include, but are not limited to, phthalmon wasps, tuna wasps, wasps, wasps, hornets, hornets, giant hornets, kiros wasps, chiros wasps, and the like.
In addition, based on the pyrethroid insecticidal ingredients blended in the beehive surface treatment agent, various insects such as flying insects such as mosquitoes, chironomids, house flies, butterflies and fruit flies such as Drosophila, cockroaches and ants In addition, it has an excellent insecticidal effect and can be applied in a wide range.

Next, based on specific examples, the honeycomb penetration aid of the present invention will be described in more detail.

The pyrethroid insecticidal components cyfluthrin 0.33 w / v% and d-T80-phthalthrin 0.09 w / v% were used as bee control components, and isopropyl myristate [viscosity: 6.6 mPa · s (20 ° C.)] 5 0.0% w / v% and normal paraffin [product name: neothiozole, surface tension: 25.8 mN / m (20 ° C.)] as a beehive penetration agent remaining amount (94.58 w / v%) ) To prepare an aerosol stock solution (honeycomb surface treatment agent).
350 mL of this aerosol stock solution is placed in an aerosol container, and 150 mL (aerosol stock solution / propellant ratio: 70/30) containing liquefied petroleum gas as a propellant and a small amount of nitrogen gas added for internal pressure adjustment is pressure-filled. The aerosol agent used in was obtained.
This aerosol agent had an injection force of 46 gf (25 ° C.) when applied to a target surface 20 cm away, and a 10% volume cumulative particle diameter of spray particles was 41 μm (25 ° C.).

About 200 mL of this aerosol was sprayed aiming at the mid-stage nest of the hornet wasp under the eaves of a detached wooden house. The aerosol spray solution was found to have a moderate affinity with the lower layer after penetrating from the surface of the nest, and to quickly kill the hornet wasp in the nest. In addition, the bees that escaped the extermination did not return to the nest, and the nesting behavior of the hornet wasps did not progress for more than two months.

In order to investigate that the surface tension of the beehive penetration aid is related to the permeability from the beehive surface and the affinity with the inner part, the following test was conducted.
(Penetration and affinity test methods)
Cellulose filter paper having a width of 1 cm and a length of 15 cm was prepared, and 1 cm wide and 1 cm long beetle beehives were stacked at a position 5 cm to 6 cm from the lower end, and the upper and lower ends thereof were fixed with staples. Thereafter, the filter paper portion overlapping the nest surface was excised, and a test piece connected in the order of filter paper-nest fragment-filter paper was produced.
10 mL (about 2 cm in height) of each honeycomb's nest penetration aid was placed in a test tube having a diameter of 2.5 cm, and the test piece was inserted into this solution. Using the lower end 4 cm of the test piece as a starting point, the time until the liquid surface reached the position of the lower end 7 cm from this position was measured and used as an indicator of permeability and affinity. The test was also conducted on a test piece made of only cellulose filter paper without fixing the honeycomb fragment. The test results are shown in Table 1.

As a result of the test, in the filter paper test piece which does not fix the honeycomb nest fragment, the difference in the arrival time was not recognized regardless of the surface tension of the beehive penetration aid, but the nest fragment fixation was actually applied. In the case of a filter paper test piece, it was confirmed that a honeycomb nest penetration aid having a surface tension in the range of 23 to 27 mN / m exhibits appropriate permeability and affinity.
On the other hand, in the case of n-octane having a surface tension of less than 23 mN / m, only n-octane penetrates excessively from the surface of the beehive to the inside, while the IP solvent exceeds 27 mN / m (20 ° C.). 2835 and isononyl isononanoate and butylpropylene diglycol, which are not equivalent to saturated hydrocarbons even within the range of 23 to 27 mN / m, are poorly permeable as a beehive surface treatment agent and are used as a beehive material. The affinity with the ingredients was poor, suggesting that it was difficult to achieve an effective control effect by itself.

In accordance with Example 1, various beehive surface treatment aerosols shown in Table 2 were prepared and subjected to the following tests.
(Honey nest surface treatment method)
Various test aerosols were treated on the nests at the initial stage when the hornet wasps began nesting behavior, and after a predetermined period of time, the bee extermination status and nesting progress were observed. The test results are shown in Table 3 based on the following criteria.
・ Exclusion status after 1 week: Most adults, moths and larvae in the nest were eliminated; ○, part of the nest was eliminated; Δ, only adults outside the nest to which the spray solution had adhered were eliminated;
-Progression of nesting after one month: Nesting has hardly progressed; ○, slightly advanced; Δ, greatly advanced; ×.

As a result of the test, the honeycomb penetration aid of the present invention, that is, a saturated hydrocarbon having a surface tension in the range of 23 to 27 mN / m (20 ° C.) is 50 w in the honeycomb treatment agent containing the honeycomb control component. / V% or more, both in the control of the nest of adults, pupae and larvae, and in the suppression of nesting behavior, in order to appropriately adjust the penetration and compatibility of the bee control component from the beehive surface to the inside of the beehive It was confirmed that an effective control effect was exhibited in Of the saturated hydrocarbons, paraffinic hydrocarbons, especially normal paraffins are preferred, and in order to suppress nesting behavior over a long period of time, along with the honeycomb nest penetration aid of the present invention, the viscosity is 5-15 mPa · It was preferable to use an organic solvent in the range of s (20 ° C.) in combination.
On the other hand, saturated hydrocarbons with surface tensions outside the range of 23 to 27 mN / m (20 ° C.) and ester or glycol ether solvents were used even within the range of 23 to 27 mN / m (20 ° C.). Comparative Examples 1 to 3 were found to be particularly inferior in terms of the extermination effect due to improper permeability and affinity. Further, as is clear from Comparative Example 4, it was necessary that the honeycomb nest penetration aid of the present invention was added to the beehive surface treatment agent in an amount of 50 w / v% or more.
Furthermore, since the test results of Example 2 and Example 3 correlate well, it is clear that the surface tension of the solvent is a useful index for studying the penetration aid constituting the beehive surface treatment agent. became.

The beehive penetration aid of the present invention can be used for the purpose of controlling a wide range of pests other than bees.

Claims (5)

The bee that is a saturated hydrocarbon having a surface tension in the range of 23 to 27 mN / m (20 ° C.) and blended in a beehive surface treatment agent containing a bee control component in an amount of 50 w / v% or more. Honeycomb penetration aid as a control ingredient. 2. The beehive penetration aid according to claim 1, wherein the saturated hydrocarbon is a paraffinic hydrocarbon. The beehive penetration aid according to claim 2, wherein the paraffinic hydrocarbon is normal paraffin. The honeycomb nest penetration aid according to any one of claims 1 to 3, wherein the beehive surface treatment agent is an aerosol stock solution, and a propellant is added thereto to form an aerosol form. The beehive surface penetration agent according to any one of claims 1 to 4, wherein the beehive surface treatment agent contains at least one pyrethroid insecticidal component as the bee control component.