JPH11349407A - Vermin repelling agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vermin repelling agent containing d-limonene as an active component, exhibiting quick action against hygienic vermin, stored food vermin and agricultural vermin to enable the repelling of the vermin at a low cost and safe to human body. SOLUTION: This vermin repellent contains preferably >=1.5 wt.% of d- limonene as a main component. d-Limonene is present in lemon oil, sweet-orange oil, bergamot oil, lime oil, etc., at high concentration. The vermin repellent can be used in the form of an impregnated sheet material produced by impregnating the agent in a substrate such as filter paper and nonwoven fabric, a molded plastic article such as the collar for animal or pet produced e.g. by kneading the agent in a plastic raw material, a liquid or jelly spraying agent or a sprayable powder agent. The vermin repellent is preferably applied at a rate of 1.5 mg/cm<2> for an agent containing 1.5 wt.% of d-limonene and 16 mg/cm<2> for an agent containing 16 wt.% of d-limonene.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a novel composition of a pesticide against so-called sanitary pests, house pests, industrial pests and other various pests.

[0002]

2. Description of the Related Art With the change of living environment due to urbanization in recent years, various pests which have not been seen in the past have come to live close to humans or become parasitic. Examples of the pests include sanitary pests belonging to various classes such as flies, mosquitoes, cockroaches, fleas, moths and their larvae, ants, mites, and house pests such as termites, stains, igas, and beetle worms. There are also pests that are said to be stored food pests, urban green tract pests such as aphids and scale insects, and industrial pests such as Hirata chatter beetles. For example, recent pet booms such as fleas and mites called sanitary pests have made frequent contact with humans, and the fleas, especially their adults, always parasitize warm-blooded animals such as mammals and suck blood. They can also live as nutrients and transmit infectious diseases. In addition, mites damage stored foods, and indoor dust mites, in particular, cause allergies due to contact with human skin. In addition, as residential areas have developed into rural areas, things that were formerly insect pests, such as chatter beetles, have become urban pests. Therefore,
There is a growing demand for the development of drugs that effectively and safely control such pests.

Heretofore, as the pesticides for various kinds of pests as described above, those containing pyrethroid-based insecticidal components such as exmin, phenothrin and allethrin as the main components have been generally used. Known blends of diethyltramide and the like, and blends of these with a synergist such as pipenyl butoxide have been used. In recent years, products containing essential oils such as hinokitiol have been developed.

[0004]

Generally, among the sanitary pests, fleas, mites, cockroaches, and the like are less susceptible to insecticides than conventional pests such as flies and mosquitoes. However, conventional pesticides cannot exert a sufficient pesticidal effect unless a large amount of the drug is used, and in that case, there is also a problem in terms of safety for humans and livestock when a large amount of the drug is used. Even those containing the above-mentioned essential oils can safely and effectively control various pests such as fleas, and none of them can be used at low cost.

[0005] Therefore, the present invention provides not only conventional flies and mosquitoes but also sanitary pests such as fleas, mites and cockroaches.
It is an object of the present invention to provide a pesticidal agent which can be safely and effectively and promptly and economically controlled against stored food pests and other pests related to agricultural products, and a method for controlling the same.

[0006]

Means for Solving the Problems In order to achieve the above object, the present invention provides the following composition for a pesticide. That is, it is a pesticide containing d-limonene as a main component. d-Limonene is one of monocyclic monoterpenes, and its chemical name is 1,8,9-Menthadiene-1-Methyl-4-iso
Propenylcyolohexene is a colorless or faint yellow transparent liquid substance with a unique odor at room temperature.

[0007] In addition to lemon oil, d-limonene is relatively high in sweet orange oil, bergamot oil, lime oil, petiglen oil and the like, and is also included in peppermint oil, pine oil, hinoki oil, citronella oil and the like. Essential oils obtained from these essential oils by general methods such as fractionation. In addition, it has been proved in so-called aromatherapy (aromatic therapy) that d-limonene has low harm to humans, and on the contrary, its aroma relaxes humans.

[0008] The pesticidal composition according to the present invention effectively exerts the pesticidal effect against the above-mentioned various pests. Therefore, not only flies and mosquitoes but also hygiene such as fleas, mites and cockroaches can be used. Pests and insect pests of crops such as chrysoptera, their adults and their larvae, and their eggs are also effective in controlling insects.
It was confirmed that it exhibited.

The pesticidal composition according to the present invention is used as an impregnated sheet material obtained by impregnating a base material such as filter paper or nonwoven fabric, or for an animal which has been incorporated in a synthetic resin raw material in advance by kneading. It can be used as a resin molded product such as a collar or a pet collar, as a liquid or jelly-like spray, or as a powder that can be sprayed. In addition, as a liquid spray,
For example, it can be formulated in a diluted state by blending it in a desodium benzoate-denatured alcohol solution, and as a jelly spray, for example, an organic solvent such as alcohol or a surfactant can be used. It can be formulated by using an aqueous solution. As the powder, for example, precipitated calcium carbonate can be used as an excipient, and a stabilizer such as a sorbitan fatty acid ester can be added to the excipient.

Further, according to the above-mentioned sheet material, it can be used as a laying material or an enclosing material. In the method for controlling pests according to the present invention, the above-mentioned spray agent and powder agent are directly used. The method can be performed by spraying on a target object or a target animal.

[0011] The pesticidal composition prepared as described above is not limited differently depending on the target pest and usage, but is preferably in a dilution concentration range of 1.5% by weight or more. More preferably, it can be used in the range of 5% by weight to 16% by weight. When the content is 1.5% by weight or more, the effective control effect can be obtained, and when it is 5% by weight or more, a more rapid effect can be obtained. In addition, when the use concentration exceeds 16% by weight, the previous amount is effectively sufficient, so that it becomes economically negative.

In the method for controlling pests according to the present invention, the agent containing 1.5% by weight of d-limonene is substantially about 1.5 mg / cm ² , and the agent containing about 16% by weight is substantially about 1.5 mg / cm ² . An amount acting on a specific surface at a quantitative ratio of 16 mg / cm ² is advantageous in that it can be used effectively and economically without any adverse effect.

[0013]

[Example] [Test Example 1] (Effect on adult flea) (a) Test insect Cat flea adult (1 after emergence)
(B) d-limonene agent (d-limonene content 90% or more)
Was dissolved in acetone so as to have a predetermined concentration shown in Table 1 to obtain a drug solution. (C) A filter paper (diameter 9 cm, Toyo Filter Paper No. 1) was spread in a petri dish, and 0.64 ml of the above-mentioned drug solution was dropped and impregnated on the filter paper on the filter paper surface on average with a pipette. Thereafter, 15 test insects described above were released and sealed with a Ciron film. (D) This was allowed to stand under environmental conditions of a temperature of 25 ° C. and a humidity of 60% RH, and the number of dead insects after 24 hours of the above treatment was counted, and this was repeated three times, and the mortality was calculated from the average value. The results are shown in Table 1. In addition, the case where the filter paper was not impregnated with any chemical was defined as a blank (shown as “BL” in Table 1 and the same in the following tables).

[0014]

[Table 1]

From the results shown in Table 1, it can be seen that the pesticidal composition containing d-limonene as a main component is excellent in controlling flea adults in comparison with blanks.
The effect varies depending on the concentration of the used solution, and it is confirmed that if the used concentration is 1.5% by weight or more, the effect that the mortality rate exceeds 50% can be obtained. It is also found that 3.0% by weight or more is extremely effective against flea adults.

[Test Example 2] (Effect on Flea Larvae) (a) Test Insect Cat flea larva (1 after hatching)
(2 days old) (b) A drug solution was obtained by dissolving a d-limonene agent (containing 90% or more of d-limonene) in 10% denatonium benzoate-denatured alcohol to a predetermined concentration shown in Table 3. (C) 20 test insects were released on a filter paper surface provided in the same manner as in Test Example 1, and 0.64 ml of the above-mentioned drug solution was dropped on the filter paper surface with a pipette on average.
This was left under environmental conditions of a temperature of 25 ° C. and a humidity of 60% RH, and the number of dead cat flea larvae was counted. This was repeated three times, and the mortality was obtained from the average value.

[0017]

[Table 2]

From the results shown in Table 2, it is confirmed that the pesticide containing d-limonene as a main component has an effective control effect on fleas larvae in comparison with a blank. It can also be seen that when the concentration is 5.0% by weight or more, a rapid effect can be obtained in the extermination.

[Test Example 3] (Hatch-inhibiting effect on flea eggs) (a) Eggs to be tested
(2 days) (b) A drug solution was obtained by dissolving a d-limonene agent (containing 90% or more of d-limonene) in 10% denatonium benzoate-modified alcohol so as to have a predetermined concentration shown in Table 3. (C) 20 test eggs were placed on the filter paper that was set up as in Test Example 1.
Then, 0.64 ml of the above-mentioned drug solution was dropped and impregnated on the filter paper with a pipette on average. This was allowed to stand under environmental conditions of a temperature of 25 ° C. and a humidity of 60% RH. The number of eggs hatched on the 4th day after the treatment was counted, and this was repeated three times.
It was shown to.

[0020]

[Table 3]

From the results shown in Table 3, it is confirmed that the pesticide containing d-limonene as a main component is effective in suppressing hatching of flea eggs in comparison with a blank. In addition, it can be seen that when the concentration of the use solution is 5.0% by weight or more, a sufficient effect for suppressing hatching can be obtained.

Test Example 4 (Effects on Adult Mites) (a) Test Insects Adult mite of Dermatophagoides farinae, Dermatophagoides farinae and Stag beetle mite cultivated in a continuous breeding of our company (b) A drug solution was prepared in the same manner as in Test Example 3. (C) 50 test insects were put on a filter paper surface which was set up in the same manner as in Test Example 1, and then 0.64 ml of a drug solution was dropped and impregnated on the filter paper surface on average with a pipette. The opening of the petri dish was closed with a 200-mesh netted ring through which ticks did not pass. Temperature 25
C. and 60% humidity, and after the treatment,
The number of dead insects at the time was counted, and this was repeated three times, and the mortality was calculated from the average value and shown in Table 4.

[0023]

[Table 4]

From the results shown in Table 4, it can be confirmed that the pesticide containing d-limonene as a main component exerts an effective control effect on mites as compared with a blank. In particular, the concentration of the used solution is 5.0% by weight.
It can be seen that the effect is sufficient in the case described above.

[Test Example 5] (Effects on knot moth larvae) (a) Test insects
(B) A drug solution was prepared in the same manner as in Test Example 3. (C) Thirty test insects were put on a filter paper surface which was set up in the same manner as in Test Example 1, and 0.64 ml of a drug solution was then dripped and impregnated on the filter paper surface with a pipette on average. This was left under environmental conditions of a temperature of 25 ° C. and a humidity of 60% RH, and after the treatment, the number of dead insects from 5 minutes to 1440 minutes (24 hours) was counted. And the results are shown in Table 5.

[0026]

[Table 5]

From the results shown in Table 5, it can be confirmed that the pesticidal composition containing d-limonene as a main component exerts an effective controlling effect on the moth larvae in comparison with a blank. In particular, when the concentration of the use solution is 8.0% by weight or more, a rapid effect on the extermination effect is confirmed. From 5.0% by weight or more, it is expected that the rapid effect is exhibited. You.

[Test Example 6] (Effect on Pleurotus plicatilis) (a) Test Insects The larvae of Pleurotus plicatilis cultivated continuously by the Company (b) A drug solution was prepared in the same manner as in Test Example 3. (C) Thirty test insects were put on a filter paper surface which was set up in the same manner as in Test Example 1, and 0.64 ml of a drug solution was then dripped and impregnated on the filter paper surface with a pipette on average. This was left under environmental conditions of a temperature of 25 ° C. and a humidity of 60% RH, and after the treatment, the number of dead insects from 5 minutes to 1440 minutes (24 hours) was counted, and this was repeated three times. The rates were determined and are shown in Table 6.

[0029]

[Table 6]

From the results shown in Table 6, it can be confirmed that the pesticidal composition containing d-limonene as a main component exerts an effective controlling effect on Pleurotus terrestris in comparison with a blank. In particular, when the concentration of the working solution is 4.
When the content is 0% by weight or more, it is confirmed that a quick-acting effect is exhibited for the extermination effect.

Test Example 7 (Effects on Beetles) (a) Test Insects A drug solution was prepared in the same manner as in Test Example 3 (B). (C) Thirty test insects were respectively placed on the filter paper surface each set up in the same manner as in Test Example 1, and then 0.64 ml of the drug solution was dropped and impregnated on each of these filter paper surfaces on average with a pipette. Was. These at a temperature of 25 ° C,
It was left under an environment condition of 60% RH in humidity, and after the treatment, the number of dead insects was counted from 5 minutes to 1440 minutes (24 hours), and this was repeated three times, and the mortality was calculated from the average value. 7 is shown.

[0032]

[Table 7]

From the results shown in Table 7, it can be confirmed that the pesticidal composition containing d-limonene as a main component exerts an effective controlling effect on the helminth beetle and the beetle beetle in comparison with the blank. . It can also be seen that this effect is very large and immediate.

[Test Example 8] (Effects on Cockroaches) (a) Test insects Male and female adults of the German cockroach, German cockroach cockroaches, and black cockroach larvae (5 to 6 ages) that have been continuously bred by our company. A drug solution was prepared as in Example 3. (C) 30 test insects were separately placed on the filter paper surface respectively set up in the same manner as in Test Example 1, and then 0.64 ml of the drug solution was dropped and impregnated on these filter paper surfaces on average with a pipette. I let it. These were left under environmental conditions of a temperature of 25 ° C. and a humidity of 60% RH, and after 5 minutes from the treatment,
The number of dead insects at 1440 minutes (24 hours) was counted, and this was repeated three times, and the mortality was calculated from the average value and shown in Table 8.

[0035]

[Table 8]

From the results shown in Table 8, it was confirmed that the pesticidal composition containing d-limonene as a main component exerts an effective controlling effect on adult cockroaches such as German cockroaches and larvae in comparison with blanks. can do. In particular, it can be seen that the effect is immediate and extremely high.

Example 1 Pests present on various floors in the present living environment were controlled experimentally as follows using the pesticide of the present invention as follows. As the floor material, a floor mat made of vinyl chloride resin (a circular plane having a diameter of 6 cm), a punch carpet made of polyethylene (a circular plane having a diameter of 6 cm), a plywood made of wood (a rectangular plane having a size of 5 cm × 5 cm) and rush Tatami table (5
cm × 5 cm rectangular plane).

[0038] In order to carry out this extermination, 30 cat flea larvae (1 to 2 days after hatching) that have been continuously bred by our company are first mounted on the surface of each flooring material, and then 10 larvae are placed on these flooring surfaces. % In a solution of denatonium benzoate denatured alcohol
-Drug solutions prepared so that limonene was 5.0% by weight and 16% by weight, respectively, were uniformly sprayed. In this case, the spray amount of the drug solution is 5. when d-limonene from the drug solution is 5.0% by weight on each floor.
0 mg / cm ² spray rate, or 16% by weight
This is the amount that gives a spraying rate of mg / cm ² .

Each of these was used in the spring (average temperature 25 ° C,
Leave under environmental conditions (average humidity 60% RH)
Between 1 minute and 1440 minutes, the number of dead insects was counted, and the mortality was determined and is shown in Table 7.

[0040]

[Table 9]

From the results shown in Table 9, it was confirmed that, according to d-limonene, an effective and quick effect was obtained on fleas even on various flooring surfaces in comparison with blanks. .

Example 2 Cat flea eggs (spawning 1-2
30) were dispersed and placed, and the same drug solution as in Example 1 was sprayed on these flooring surfaces in the same amount. Each of them was allowed to stand for four days under environmental conditions in the spring (average temperature 25 ° C., average humidity 60% RH), and the mortality was calculated and shown in Table 8.

[0043]

[Table 10]

From the results shown in Table 10, it was confirmed that d-limonene exhibited an effective hatching-inhibiting effect on flea eggs on various flooring surfaces as compared with blanks. did. It was also confirmed that increasing the content of d-limonene in the drug solution can sufficiently exert its inhibitory action.

Example 3 Cats were infested with 30 adult cat flea adults (1 day old after emergence), which had been continuously bred by our company, as a test plot, and left for 24 hours. Thereafter, a drug solution in which a d-limonene agent was dissolved in a 10% denatonium-denatured alcohol solution was spray-sprayed on the body surface of each cat at a rate of 8 ml per 1 kg of the body weight of the cat, and the sprayed portion was brushed and then sprayed. Air dried. The cat was equipped with an Elizabeth collar to avoid grooming. Each cat treated in this manner was allowed to stand under the environmental conditions of spring (average temperature 25 ° C., average humidity 60% RH), and after 24 hours and 48 hours after the treatment, the number of parasitoid fleas was counted. The insect rates were determined and are shown in Table 9. In addition, the average value in Table 9 is the value of the mortality calculated as the average value of three cats.

[0046]

[Table 11]

From the results shown in Table 11, it can be confirmed that d-limonene can effectively control fleas parasitic on animals in comparison with blanks. Also, it can be seen that the eradication action can be effectively exhibited by increasing the concentration of the use solution.

[0048]

Since the present invention is configured as described above, the following effects are exhibited.

Since the pest control agent of the present invention contains d-limonene as a main component, it is possible to effectively control various pests that adhere to modern human life.

According to the method for controlling pests according to the present invention, the pesticidal composition according to the present invention is sprayed directly onto an animal to be controlled or an area where the pests are present, or by direct dripping. The extermination action can be obtained effectively. At this time, it is harmless to humans at the concentration used, and is expected to have an effect of aroma therapy.

Further, d-limonene itself is extremely inexpensive as compared with other conventional oils such as pinene, hinoki oil and other essential oils, and other synthetic agents such as exmin. There are advantages available.

Claims (4)

[Claims] 1. A pest control agent containing d-limonene as a main component. 2. The pesticidal composition according to claim 1, wherein the content of d-limonene is 1.5% by weight or more. 3. A method for controlling pests, comprising directly contacting the pesticide according to claim 1 or 2 with a target pest. 4. The pest control method according to claim 3, wherein the pest control agent according to claim 1 or 2 is sprayed.