JPH04338309A - Repellent against beasts - Google Patents

Abstract

PURPOSE:To obtain a repellent against beasts, having strongly repelling action on beasts, especially on rabbits, deer, wild boar, having safety to men and beasts free from a disliking feeling. CONSTITUTION:A repellent against beasts comprising at least one perfume selected from n-hexylaldehyde, heptanal, octanal, nonanal, decanal, undecanal, dodecanal, gamma-undecalactone, ethyl methylphenylglycidate, salicylic aldehyde and benzaldehyde as an active ingredient. Since the perfume has low toxicity and fragrance, is widely used as perfume mainly for preparing cosmetic partically admitted as a flavoring agent for foods, the perfume is safe and does not provide people with a disliking feeling. Since the perfume is colorless or light yellow almost close to colorless and a transparent liquid, the perfume will not exert bad influence on color tone, etc., of a material to hold the perfume when the perfume is supported on the material.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to an animal repellent, and more specifically, it relates to an animal repellent, and more specifically, a repellent containing a specific fragrance as an active ingredient.
This product relates to repellents for repelling animals such as rabbits, deer, and wild boars.

0002

[Prior art] Rabbits that inhabit Japan are the Ezo snow hare in Hokkaido, the Tohoku hare in the Tohoku region and the northern part of Japan including northern Kanto, Hokuriku, San'in, Nagano, and Gifu, the Sad hare in Sadogashima, the Okina hare in Oki Island, and the Japanese hare in Japan. The Kyushu hare is distributed from the east coast of Fukushima Prefecture to the lower Kanto region, Shizuoka, Kinki, and the outer regions of Japan, Shikoku, and Kyushu in China, the Amami hare is distributed in Amami Oshima and Tokunoshima, and the domestic rabbit is distributed throughout the country.

[0003] Hares prefer to live in sunny fields and open forests, ranging from coastal windbreak forests to alpine shrub communities. Their main food source is the stems and leaves of herbaceous plants, but when the plants wither in winter, they turn to the terminal buds, bark, leaves, and twigs of trees.

[0004] The economic damage caused by hares is inevitably caused by feeding damage to forest trees due to their habitat. The most frequently damaged plantation trees are larch in Hokkaido, cedar in Tohoku and Honshu on the Sea of Japan side, and cypress in Honshu's Pacific side, Shikoku, and Kyushu. In particular, perhaps due to the high palatability of hares, damage to cypress plantation trees has been rapidly increasing, and this has become a major problem as the price of cypress wood soars.

[0005] The period of occurrence of feeding damage to afforestation trees varies considerably depending on the region, but it mostly occurs during the snowy season. Because they are deprived of vegetation by snowfall, they feed on the trees that are above the snow. For seedlings that are in their current year of planting, the trunk and branches are cut off, and for seedlings that are two years old or older, the bark is peeled off, inhibiting the growth of the tree or causing it to die.

[0006] By the way, according to the Ministry of Agriculture, Forestry and Fisheries' 1999 (February 1999 to January 1990) forest damage occurrence information, damage caused by hares to cedar, cypress, etc. was only reported. It is said that the number is approximately 610,000, and the number is several times that number if unreported items are included.

On the other hand, damage in agriculture is damage to mountain field crops during the growing period. However, it is said that during this period, there is generally an abundance of plants to feed on in the mountains and fields, so the damage is said to be less than that of planted trees.

[0008] Such a phenomenon is observed not only in hares but also in animals such as deer and wild boars, and effective countermeasures are being sought.

[0009] Regarding damage control measures, these animals have a wide range of activity and can cause considerable damage even in small numbers, so controlling them is considered difficult, and various control methods have been devised and implemented since ancient times. ing.

For example, (1) Poisoning It is prohibited under current hunting laws.

(2) Traps, gun traps: There have been various methods of trapping for a long time, but wire traps are the most commonly used. Although it is inexpensive and easy to use, it does require some skill to set up, and requires a license under the Hunting Act. By the way, the capture rate is said to be 5-10% for experts, and 1-2% for the general public.

[0012] Gun hunting: Requires special permission from the prefectural governor, and there are restrictions on the hunting period.

(3) Undergrowth hunting This method takes advantage of the habit of hares to avoid going out into the open ground, being wary of their natural enemies, and cuts down the undergrowth and removes hiding places, but this method poses problems in terms of workability and labor costs. There is.

(4) Protection of seedlings Enclosing seedlings with brush fences and wire mesh is a reliable method, but in snowy regions the height of the enclosure must be 2 m or more, which poses problems in terms of cost and labor.

[0015] In addition, the method of wrapping seedlings in straw or covering them with netting to prevent feeding damage has been practiced since the Tenmei and Bunsei eras, and is used in some areas, but it reduces the number of seedlings to be planted and reduces labor costs. It has been pointed out that there are problems with its application.

(5) Repellent Conventionally, as a rabbit repellent, emphasis has been placed on a hare repellent, mainly in order to prevent damage to afforestation trees.
Various repellent methods have been devised and implemented since ancient times, such as spraying and applying offal of fish and squid, chicken manure, etc.
All of them lacked practicality.

[0017] Even now, only a few applications such as β-naphthol agents, thiuram agents, and asphalt emulsions are being considered.

[0018]

[Problem to be solved by the invention] As mentioned above, chemical
With regard to physical control methods, apart from the above-mentioned protective fences, the effectiveness from the viewpoint of the senses and physiology of hares, such as their sense of smell, taste, and vision, has not been studied to date. At present, there is no such appropriate method. With the recovery of afforestation projects after the war, the damage caused by hares has increased, and measures to control them have become an urgent issue even to this day.

The object of the present invention is to provide a repellent that repels animals, particularly animals such as rabbits, deer, and wild boars, which mainly cause feeding damage to afforestation trees.

[0020]

[Means for Solving the Problems] In order to solve the above problems, the present inventors conducted extensive research and testing on repellents based on the sense of smell of animals using various fragrances. The present invention was completed based on the discovery that a fragrance distributed in Japan surprisingly has a strong repellent effect on animals, especially rabbits, deer, and wild boars.

[0021]

[Table 1]

[0022] These substances are known compounds, and due to their low toxicity and fragrant properties, they are not only widely used mainly as flavoring agents for cosmetic formulations, but are also partially approved as flavoring agents for foods. It is something.

[0023] The above perfume may be used as it is as the animal repellent of the present invention. However, depending on the intended use, spraying and coating agents such as liquids, powders, granules, aerosols, etc., which are compatible with the intended use, may be prepared in the usual manner using bases and auxiliary agents that are normally used in the formulation. .

[0024] By containing the above-mentioned fragrance, which is an active ingredient, in an amount of 0.5% by weight or more in these preparations, a sufficient repellent action can be exerted.

[0025] This preparation also contains other bird and animal repellents.
They may be used together as appropriate depending on the place of use, conditions of use, etc.

[0026] When the active ingredient of the present invention is used without being formulated into a formulation, since the above-mentioned fragrance is usually a liquid, it may be sprayed or applied directly to the area of use, or may be added to a paint or the like. It can also be used by retaining and retaining fragrance by impregnating or kneading it into materials such as nets, ropes, tapes, cloth, paper, gel-like substances, porous substances, and the like.

[0027] Since the active ingredient of the animal repellent of the present invention is originally used as a perfume, it has a fragrance and does not give a feeling of disgust to humans. Since it is a colorless to almost colorless pale yellow transparent liquid, it will not affect the color tone of the object at all even if it is held in other materials.

The animals to be repelled by the repellent of the present invention include rabbits, deer, wild boars, and other animals that cause harm to afforestation trees, agricultural crops, and the living environment.In particular, rabbits, which have recently become a problem in afforestation areas, are It is valid.

Next, the present invention will be further explained in detail by giving examples of the present invention and test examples showing the effects thereof.

[0030]

[Example] Example 1 Zeolite particles (trade name: Iwamilite ointment manufactured by Iwami Mining Co., Ltd., 1 to 3 mm) were added with the fragrance of the present invention; n-hexylaldehyde, heptanal, octanal, nonanal, decanal, undecanal, dodecanal, γ. -Undecalactone, ethyl methylphenylglycidate, salicylic aldehyde, and benzaldehyde were each added in an amount of 10% by weight and mixed, and the mixture was sealed in a glass bottle for 24 hours to fully adsorb the fragrance to the zeolite particles to obtain a product.

Test Example 1 a) Repellent of the present invention in Example 1 b) Test method A domestic rabbit (black, weight approximately 2 kg) was tamed with test food in a cage measuring 90 cm in width x 60 cm in depth x 43 cm in height.
g) One male and one female each were used.

[0032] As a treatment area, pelleted feed (trade name: (
A mixture of 200 g of the repellent from Example 1 (Rabbit Food manufactured by Easter Pet Co., Ltd.) and 20 g of the repellent from Example 1 above, and a mixture of 200 g of pelleted feed and 20 g of zeolite grains for the untreated group were placed in feeding boxes, and each was placed at the front of the cage. They were placed on both ends, and a water container was placed on each end, allowing them to feed freely for one day.

One day later, the remaining amount of pelleted feed in the treated and untreated areas was weighed, and the repellency rate was calculated as the reciprocal of the feeding ratio of the treated area to the untreated area.

[0034] The following fragrances: α-amylcinnamaldehyde, anisaldehyde, cyclamenaldehyde,
Cuminaldehyde, vanillin, ethylvanillin, heliotropin, citronellal, iso-eugenol, eugenol, methyleugenol,
Cinnamyl alcohol, geraniol, geranyl acetate, citronellyl acetate, cinnamyl acetate, terpinyl acetate, cidronellol, thymol, α-terpineol, phenylethyl alcohol, and benzyl alcohol were used as comparative examples.

c) Results The results were as shown in Table 2 below.

[0036]

[Table 2]

[0037] All of the repellents of the present invention have a repellency rate of 70%.
Thus, its remarkable effectiveness was confirmed.

Example 2 Perfume of the present invention: n-hexylaldehyde, heptanal, octanal, nonanal, decanal, undecanal, dodecanal, γ-undecalactone, ethyl methylphenylglycidate, salicylic aldehyde and benzaldehyde, each with 0 A .5% by weight ethanol solution was used as a product.

Test Example 2 a) Repellent of the present invention of Example 2 b) Test method Using the cage of Example 1, one female and one female of domestic rabbits (white, weighing about 2 kg) previously tamed with test food were used. there was.

[0040] The repellent of Example 2 above was sufficiently sprayed on the lateral branch leaves of a one-year-old cypress seedling, and after being left to dry for 2 hours, 1 to 2 c.
It was cut into pieces with a length of m, and 100 g of the pieces were placed in a stainless steel basket with a diameter of 20 cm and a depth of 10 cm to prepare a treatment area. In addition, as a control, 100 g of untreated cypress pieces were placed in another basket as an untreated group. Next, place the baskets of both groups at both ends of the cage opening, and add 200 g of pelleted feed.
The animals were provided with a water container and allowed to eat freely for one day.

One day later, the weight of the cypress strips in the treated and untreated areas was measured to calculate the amount of food eaten, and the repellency rate was calculated as the reciprocal of the feeding ratio of the treated area to the untreated area.

[0042] Separately, 100 g of cypress pieces were placed in another cage and placed outside the cage to correct the increase and loss of cypress due to moisture absorption or drying.

c) Results The results were as shown in Table 3 below.

[0044]

[Table 3]

[0045]

Effects of the Invention The animal repellent of the present invention uses as an active ingredient a low-toxic, fragrant fragrance material that is widely used as a flavoring agent in cosmetics and also as a flavoring agent in foods, and is effective against humans and humans. It is safe for animals, has no aversion to humans, and has an extremely significant repellent effect.

[0046] This is an extremely useful invention for preventing animal pollution in recent years, especially animals such as rabbits in forests and agricultural lands.

Claims (1)

[Claims] Claim 1: At least one selected from the group consisting of n-hexylaldehyde, heptanal, octanal, nonanal, decanal, undecanal, dodecanal, γ-undecalactone, ethyl methylphenylglycidate, salicylic aldehyde, and benzaldehyde. A beast repellent characterized by containing one type of fragrance as an active ingredient.