JPH0570305A - Bird repellent - Google Patents

Abstract

PURPOSE:To provide a repellent effective for repelling birds, especially doves and crows living in the area similar to doves and harmful for the environment of the human habitat. CONSTITUTION:The objective agent contains, as active component, at least one kind of perfume selected from the group of n-hexylaldehyde, heptanal, octanal, nonanal, decanal, undecanal, dodecanal, gamma-undecalactone, methylphenylglycidic acid ethyl ester and gamma-nonalactone which are commercially available as a name of aldehyde C. An agent containing >=2.5wt.% of the perfume as the active component exhibits strong repelling action against doves and crows living in town. The perfume may be used as it is or in the form of liquid, powder, granule, aerosol, microencapsulated scattering agent, coating agent, etc., corresponding to the application object, by the use of conventional preparation base, assistant, etc.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a bird repellent, especially,
The present invention relates to a repellent for harmful birds such as pigeons and crows suitable for use in urban areas.

[0002]

2. Description of the Related Art Pigeons, crows, etc. that live in Japan are evenly distributed in rural areas, fishing villages, and urban areas, causing food damage of agricultural products, pollution of the residential environment in urban areas, and various control methods. Has been done.

For example, in arable land, a method of covering the crops with a net or tape to prevent birds from approaching,
There are methods of raising alertness to birds using sound, light, models, etc., methods of capturing and shooting with a capture tool, a hunting gun, and methods of killing or evading with chemicals.

However, many of them are subject to legal restrictions, or have problems in workability and cost. Therefore, at present, a simple repellent that can be used even in urban areas is widely demanded, and its practical application becomes an urgent issue. ing.

[0005] Conventionally, Japanese Patent Publication No. 57-25521 has been used as an active ingredient of bird repellents using only aroma.
Japanese Patent Application Laid-Open No. 2-113836, Japanese Patent Application Laid-Open No. 3-1
No. 70403 and the like disclose only methylnonylketone, methylphenylketone, green leaf aldehyde, green leaf alcohol, cinnamon aldehyde, cinnamon alcohol, rose type floral fragrance, musk-like aroma and the like.

[0006]

In the recent tendency of urbanization, many birds have narrowed their habitat distribution areas and their populations have decreased, but pigeons, crows, etc. are in a human-made environment. It tends to adapt, expand the distribution range, and increase the number.

[0007] For example, it is often the case that kawarabato leave the control of humans and become wild and become doves, and are often fed by people at parks, shrines, etc.
It is rare for an example to be so familiar with humans.

This is because in addition to the fact that after the war the pigeons were legally treated as if they were "protective birds" and that they were cherished as "symbols of peace," in addition to the abundant food that accompanies high economic growth. Circumstances and construction rush provided a good feeding ground and "roost", and the number has recently increased sharply.

As a result, pigeons have been particularly highlighted as birds that cause various harmful effects even in urban areas, and have become a serious problem called "pigeon pollution". Condominiums, balconies, roads, buildings, etc.
Contamination of factories and warehouses is a cause of concern for residents and workers.

[0010] However, most conventional bird repellents are intended to prevent feeding damage by birds in farmland by utilizing their taste, smell and hue, and the use of these repellents in urban areas is Color, odor, toxicity of the repellent itself,
It is not possible to use it immediately because it is too sticky.

The present invention has been completed in order to solve the drawbacks of the conventional bird repellents, and in particular, pigeons and crows exhibiting a habitat distribution similar to that of pigeons, which are harmful to the human environment, are effective. The purpose of the present invention is to provide a repellent that can be eliminated altogether.

[0012]

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention has been tested and tested with various fragrances on a bird odor repellent, and was distributed under the alias Aldehyde C in Table 1 below. Surprisingly, it was discovered that the existing fragrance has a strong repellent effect on birds, especially pigeons and crows inhabiting the city, and it has been completed.

That is, the bird repellent of the present invention comprises n-hexylaldehyde, heptanal, octanal, nonanal, decanal, undecanal, dodecanal,
It is characterized in that at least one perfume selected from the group consisting of γ-undecalactone, ethyl methylphenylglycidate and γ-nonalactone is used as an active ingredient.

Table 1 shows the characteristics of these active ingredients and aroma. In the table, parentheses show the aliases of distribution.

[0015]

[Table 1]

These fragrances are well-known compounds, and because of their low toxicity and fragrance, they are widely used not only as a fragrance for compounding cosmetics but also as a flavoring agent for foods. There is something.

In the bird repellent of the present invention, the above fragrance may be used as it is as a repellent. However, depending on the object to be used, it is prepared by using a base material, an auxiliary agent or the like which is usually used for the preparation, such as a liquid agent, a powder agent, a granule agent, an aerosol agent, a spray agent by a microencapsulation method or a coating agent.

The above-mentioned fragrance contained in these preparations as an active ingredient exhibits a sufficient repellent action when the amount is 2.5% by weight or more.

In addition, other avian and animal repellents are included in this formulation.
They can also be used in combination depending on the place of use, conditions of use, etc.

When the active ingredient in the present invention is used without being formulated, the above fragrance is usually a liquid,
It may be sprayed or applied as it is to the place of use, or may be added to a paint or the like for use. Further, it can also be used by holding and aromatizing it by a holding and aromatizing means such as impregnation or kneading into a material such as net, rope, tape, cloth, paper, gel-like substance, porous substance and the like.

The repellent of the present invention is intended for repelling birds that cause harm to the human living environment, and is particularly effective against pigeons and crows in urban areas.

[0022]

Since the active ingredient of the bird repellent of the present invention is originally used as a fragrance for cosmetics, it has an aroma and does not give aversion to humans, and
Since it is a colorless or almost colorless transparent liquid with a pale yellow color, even if it is held by another substance, it does not affect the color tone of the object to be held at all.

[0023]

【Example】

Example 1 Commercially available untreated "rice pop candy (pop rice)" was used as a bait, to which the flavor of the present invention; n-hexylaldehyde,
Heptanal, octanal, nonanal, decanal, undecanal, dodecanal, γ-undecalactone, ethyl methylphenylglycidate and γ-nonalactone are uniformly perfumed at 2.5, 5 and 10% by weight, respectively, and repellent product And

In order to know the effective state of the repellent, the commercialized repellent was tested in the following manner.

That is, a large A park where doves are scattered and dwelling is selected as a test site for each group, and the test site is changed for each repellent and the test is divided over several days in order to avoid "learning" of pigeons. I went. The number of pigeons at each point is around 30.

First, untreated pop rice was sprayed on the ground for each repellent, and after it was confirmed that the pigeons had ingested, then the repellent was sprayed, and the pigeons were ingested and their behavior was observed. did.

The cinnamaldehyde and cyclamenaldehyde fragrances, which are not the repellent active ingredients of the present invention, were used as comparative examples and tested simultaneously.

The results of the test are shown in Table 2. A description of the test results in the table is given in Table 3.

The repellents of the present invention against dove have a large effect, and their remarkable effectiveness was confirmed.

[0030]

[Table 2]

[0031]

[Table 3]

Example 2 N-hexylaldehyde, heptanal, octanal, nonanal, decanal, undecanal, dodecanal, γ-undecalactone, ethyl methylphenylglycidate and γ-nonalactone were added at 10% by weight each. The product was an ethanol solution.

The park B, in which the carrion crow was settled, was selected as the test site, and the test site was changed and the test was divided into several days in order to avoid "learning" of crows. The number of crows at each point is around 10.

First, about 200 g of chopped chicken for each repellent is placed on the ground, and after confirming that the crows eat from a distance, then the chicken is placed again and the ring-shaped repellent is placed on the ground around the chicken. Was hand-sprayed, and the presence or absence of feeding and behavior of crows were observed again from a distance.

The cinnamaldehyde and cyclamenaldehyde fragrances were simultaneously used as comparative examples.

The test results are shown in Table 4, and Table 5 is a description thereof.

[0037]

[Table 4]

[0038]

[Table 5]

The repellents of the present invention against crows were all highly effective, and their remarkable effectiveness was confirmed.

[0040]

The bird repellent of the present invention has the following effects.

(1) A low-toxic and fragrant fragrance material that is widely used as a flavoring agent for cosmetics and is also partially approved as a flavoring agent for foods is used as an active ingredient, and is suitable for humans and birds. It is safe, has no dislike for people, and has a very remarkable repellent effect.

(2) In particular, it is extremely useful for preventing pollution of birds such as pigeons and crows in and around urban areas.

(3) Although there are some differences in the effect, no bird is specified and the bird has a repellent effect on all birds.

Claims (2)

[Claims] 1. At least one selected from the group consisting of n-hexylaldehyde, heptanal, octanal, nonanal, decanal, undecanal, dodecanal, γ-undecalactone, ethyl methylphenylglycidate and γ-nonalactone. A bird repellent containing fragrance as an active ingredient. 2. The bird repellent according to claim 1, which contains 2.5% by weight or more of a fragrance as an active ingredient.