Pest damage prevention device and pest damage prevention method with tactile sense as main function

Abstract

To solve such a problem that pest fish, harmful animals, and pest waterfowl exhibit an avoidance response to stimulus sounds, but the effect of the stimulus sounds does not last long and is unsuitable for pest damage prevention.SOLUTION: A pest damage prevention device includes: a sound emission device that emits, at intervals of 20-30 minutes for 30-40 seconds, a low-frequency near 100 Hz and a sound pressure of 90-100 dB being the auditory threshold of marine fish that stimulate the inner ears of harmful animals and pest fish as an auditory stimulus; and a vibration device that provides, at intervals of 20-30 minutes for 30-40 seconds, stimulation near 100 rpm as a tactile stimulus that stimulates the lateral line of pest fish and the vibration sense of harmful animals. The pest damage prevention device and pest damage prevention method are characterized such that they cause a cross-modal effect that modulates the two types of sensory stimuli, and prompt the avoidance behavior in pest fish and harmful animals by simultaneously or alternately providing an interaction of the sensory modalities of the auditory stimulus and the tactile stimulus in the sea or on land.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a pest control device and a pest control method for preventing damage caused by birds (ducks, cormorants, etc.), fish (black porgy, rabbitfish, mullet, etc.), and animals (wild boar, deer, etc.), which have been increasing in number in recent years and are becoming a growing social problem. Examples of such damage include damage to agricultural crops, damage to river fish, cultivated nori thallus, oyster juveniles, clams, large seaweed, and the like, and damage by droppings to residential areas, other buildings, reservoirs, forests, etc., caused by birds, fish, and animals. [Background technology]

[0002] Methods used to protect crops and buildings from damage caused by predatory birds and vermin include reflectors, alarm sounds, flashing lights, and ultrasonic waves, while methods used to exterminate predatory fish include sound waves, flashing lights, and netting enclosures, but these methods are either ineffective against the predatory birds, animals, and fish, or they become accustomed to the stimuli, making it impossible to maintain their attention, and their effectiveness is short-lived.Netting enclosures are not practical due to the high cost of purchase, facility maintenance, and labor required, and the current situation is that no good defense method has been found.

[0003] There is a pest control device that emits alternating high-frequency sounds (100 Hz) and low-frequency sounds (30 Hz) into the water at a sound pressure level (150 dB or more) that is strong enough to scare fish, causing them to take evasive action. However, the high sound pressure causes noise problems, and the device is complex, consumes a lot of electricity, and requires storage by an engine, making it impractical due to the high purchase costs, facility maintenance, and labor burden.

[0004] When using flashing lights, the strong aversion behavior of fish due to the light stimulus is short-term (3 to 10 days) and does not last long.

[0005] The lips have the greatest distribution of touch points that receive tactile sensations, and within the tactile senses, pain and temperature sensations take priority. Therefore, we have devised and commercialized repellent compositions (black porgy repellent bands and duck repellent bands) that utilize TRP (trip channels) (physiology) to strongly activate sensory stimuli using spilanthol, sanshool, methyl anthranilate, allyl isothiocyanate, neem oil, etc., causing a burning sensation and pain, resulting in actual harm. However, unlike farmed fish, methods that increase sensory stimulation are not sufficient for wild fish that are raised in the wild, and if an individual that has not received sensory stimulation occasionally appears, the cooperation and unity of the school will be disrupted, the repellent effect will be weakened, and the fish may be subject to predation damage.

[0006] In addition to the above methods, repellents are also used by farmers to protect their crops. However, most repellents are pesticides and chemicals, which may have adverse effects on the human body and the natural environment. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Patent application 2003-158125 [Patent Document 2] Patent application 2021-130315 [Patent Document 3] Patent application 2021-171993 [Patent Document 4] Problems that the invention of Patent Application No. 2022-98445 aims to solve

[0008] Predatory fish, pests, and waterfowl react to the irritating sound, but the effect does not last long and is not suitable for preventing predation. Predatory fish, pests, and waterfowl generally learn to react to sound threats, and although the fish, pests, and waterfowl initially show evasive behavior when the sound is released, they no longer sense pain due to learning, making it difficult to maintain the repellent effect over the long term.

[0009] The present invention aims to solve the shortcomings of conventional control devices and methods for controlling birds, animals, and fish that damage food by providing a system that uses a repellent composition that strongly activates tactile stimuli using TRP (trip channel) (physiology), causing burning sensations and pain, thereby causing actual harm, and that adds a cross-modal effect of vision, hearing, and touch, thereby maintaining a repellent effect over the long term through the interaction of sensory modalities without causing habituation.

[0010] This invention focuses on the fact that touch (somatic sensation) stimulates emotions (temporary, sudden emotional movements), which in turn influences the visual and auditory sensory modalities in unexpected ways through a mixture of sensations in the brain. In addition to using a repellent composition that strongly activates tactile stimuli using TRP (trip channel) (physiology), causing a burning sensation or pain and actually causing harm, the invention is characterized by adding the cross-modal effect of tactile stimuli (vibration) to auditory stimuli, causing predatory fish and pests to take evasive action without becoming accustomed to the stimuli.

[0011] In addition to the above, a predator control device and a predator control method are also provided which use two types of devices simultaneously or alternately in the sea or on land to stimulate pest and predatory fish simultaneously or alternately, causing predatory fish and predatory fish to take evasive action, by using a sound emission device that emits low frequencies of around 100 Hz as an auditory stimulus to stimulate the inner ears of pests and predatory fish, and a sound pressure of 90 to 100 dB, which is the hearing threshold of saltwater fish, for 30 to 40 seconds at 20 to 30 minute intervals, and a vibration device that vibrates at around 100 rpm for 30 to 40 seconds at 20 to 30 minute intervals as a tactile stimulus to stimulate the lateral line of predatory fish and the vibratory sense of pests. When used in combination with a yellow or pink repellent compound that utilizes TRP (Trip Channels) (physiology), which strongly activates sensory stimuli in predatory fish and harmful animals, causing them to feel a burning sensation and pain, and actually harming them, the sense of touch (vibration) stimulates emotions (temporary, sudden emotional movements), and in an unexpected way, the sensory mix in the brain influences and interacts with the sensory modalities of hearing and vision, causing predatory fish and harmful animals to take evasive action without becoming accustomed to the substance. The pink duck repellent band stimulates visual sensitivity, and because waterfowl mainly obtain various information from vibrations from the water surface using sensory organs in the lateral line system similar to those of fish, tactile stimuli (vibrations) are given simultaneously or alternately on the sea surface at around 100 rpm for 30-40 seconds at 20-30 minute intervals. In addition, when used in combination with the duck repellent band, which applies TRP (Trip Channel) (physiology), which strongly activates sensory stimuli in predatory waterfowl, causing them to feel a burning sensation and pain, and actually harming them, the tactile sensation (vibrations) stimulates emotions (temporary, sudden emotional movements), and the mixture of sensations in the brain influences and interacts with the visual and auditory sensory modalities in unexpected ways, causing the predatory waterfowl to take evasive action without becoming accustomed to them. Effects of the invention

[0012] The present invention combines a predator prevention device that creates a cross-modal effect by simultaneously or alternately applying auditory, visual, and tactile stimuli to predatory fish, pests, and predatory waterfowl, with a repellent composition that applies TRP (trip channel) (physiology), which strongly activates sensory stimuli, causing burning sensations and pain and actually harming them. This causes the sensory mixing in the brain to affect and interact with the visual and auditory sensory modalities in unexpected ways, allowing the deterrent effect to last for a long period of time. BEST MODE FOR CARRYING OUT THE INVENTION

[0013] Next, the present invention will be described with reference to examples.

[0014] For this invention, we commissioned a biodegradable plastic tape manufacturer and distributor to create the following: a duck repellent band, 2.8 mm in diameter, 0.1 mm thick, pink, with enough buoyancy to float on the surface of the water, containing 0.5% methyl anthranilate as a repellent and 0.5% nettle extract as an attractant; a black porgy repellent band, 2.0 mm in diameter, 0.2 mm thick, yellow (an attractant color), with enough specific gravity to hang down in the water, containing 0.5% sanshool and 0.5% nettle extract as an attractant; and a pest repellent band, 2.8 mm in diameter, 0.1 mm thick, pink, containing 0.5% neem oil and 0.5% ethyl hexanoate as an attractant. We also commissioned an electronics manufacturer to prepare a low-frequency predator control device that emits low-frequency sounds of around 100 Hz to stimulate the inner ears of predatory fish and pests, and a sound pressure of 90-100 dB, the hearing threshold of saltwater fish, for 30 seconds at 20-minute intervals, and a vibration predator control device that, for the first time, vibrates at around 100 rpm for 30 seconds at 20-minute intervals as a tactile stimulus to stimulate the lateral line of predatory fish, the lateral line system of predatory waterfowl, and the vibratory sense of pests. These two types of predator control devices are small, inexpensive devices that can operate continuously for approximately three months on two D-size batteries, and we had two of each made. Furthermore, black porgy repellent bands and duck repellent bands, which utilize TRP (Trip Channel) (physiology) to strongly activate tactile stimuli in predatory fish and waterfowl, causing them to feel a burning sensation and pain, resulting in actual damage, have been shown to have a long-term repellent effect and are already being used by seaweed farmers and lotus root growers who have installed net enclosures across the country.However, it is difficult to say that net enclosures and repellent bands alone are sufficient for wild fish growing in the wild; if an individual enters through a floating gap in the net or an individual that has not received the tactile stimuli occasionally appears, the cooperation and unity of the school may be disrupted, the repellent effect may be weakened, and the fish may suffer predation damage. For this reason, we asked a seaweed farmer who had not installed enclosure nets to install a feeding damage prevention device that could emit low-frequency sounds around 100 Hz and sound pressures of 90 to 100 dB, the hearing threshold of marine fish, for 30 seconds every 20 minutes as auditory stimuli for black porgy.The speakers were suspended horizontally in the ocean at 50 m intervals at a depth of 1 m.In addition, for the first time, a feeding damage prevention device was used that vibrated at around 100 rpm for 30 seconds every 20 minutes as a tactile stimulus.The vibrators were suspended in the ocean at 50 m intervals with the vibrators facing downward, providing both auditory and tactile stimuli simultaneously.Pink duck repellent bands stimulated the visual sensitivity of predatory waterbirds, and because waterbirds (ducks and cormorants) use lateral line sensory organs similar to those of fish to obtain various information from vibrations from the water surface, for the first time, a predatory waterbird prevention device was used to vibrate at around 100 rpm for 30 seconds at 20-minute intervals. The vibrators were floated on the sea surface at 50m intervals, facing downwards, and tactile stimuli were given simultaneously or mutually. Yellow black porgy repellent bands, which applied TRP (trip channel physiology) to actually harm the fish simultaneously or mutually with these sensory stimuli, were suspended in the sea, and pink duck repellent bands were floated on the surface of the sea as a visual stimulus, providing interactive stimulation. The repellent effects of black porgy and ducks were tested simultaneously for several months, and no significant repellent effect was observed when simultaneous visual and auditory stimuli were used previously. However, in this test, the sense of touch (vibration) stimulated emotions (temporary, sudden emotional movements), and the mixing of sensations in the brain influenced and acted on the visual and auditory sensory modalities in an unexpected way, which is thought to have allowed attention to be maintained to the stimuli over the long term without causing habituation.

[0015] Since wild boars and deer are pests and obtain various information through tactile stimuli that stimulate the vibratory sense of their noses and feet, we inserted predator prevention devices into the ground at 30m intervals, which could vibrate at around 100 rpm for 30 seconds every 20 minutes. Similarly, we installed predator prevention devices 1m above ground at 30m intervals, which emitted low-frequency sounds around 100 Hz and sound pressure of 90-100 dB for 30 seconds every 20 minutes as auditory stimuli. Tactile and auditory stimuli were given simultaneously or alternately. At the same time, pink pest repellent vans that utilize TRP (Trip Channel) (physiology) were stretched 1m above ground around the fields to provide visual stimulation. When the repellent effect was tested on wild boars and deer for several months, a significant repellent effect was observed. It is believed that the sense of touch (vibration) stimulates emotions (temporary, sudden emotional movements), and through a mixture of sensations in the brain, it affects and acts on the sensory modalities of vision and hearing in an unexpected way, allowing the animals to maintain their attention to the stimulus without becoming habituated over the long term.

Claims

1. A predator control device and method for preventing predatory behavior, characterized in that the device and method simultaneously or alternately apply the interaction of the sensory modalities of auditory and tactile stimuli underwater or on land using a sound emission device that emits low frequencies of around 100 Hz to stimulate the inner ears of pests and predatory fish, and a sound pressure of 90 to 100 dB, which is the hearing threshold of saltwater fish, for 30 to 40 seconds at 20 to 30 minute intervals as auditory stimuli, and a vibration device that emits stimuli of around 100 rpm for 30 to 40 seconds at 20 to 30 minute intervals as tactile stimuli to stimulate the lateral line of predatory fish and the vibratory sense of pests, thereby causing a cross-modal effect that modulates the two types of sensory stimuli and causes predatory fish and pests to take evasive action.

2. A vibrating device is suspended in water that stimulates visual sensitivity with pink tape and simultaneously stimulates the lateral line system of predatory waterfowl at a speed of around 100 rpm for 30 to 40 seconds at 20 to 30 minute intervals as a tactile stimulus, thereby stimulating the lateral line system of predatory waterfowl. By simultaneously or alternately providing an interaction between the sensory modalities of visual and tactile stimuli, a cross-modal effect is created that modulates the two types of sensory stimuli, causing the predatory waterfowl to take evasive action. This is characterized by the above-mentioned predatory damage prevention device and method.

3. A method for preventing pest damage, characterized by inducing repellent behavior by using a repellent composition that utilizes TRP (trip channel) (physiology) that strongly activates sensory stimuli and causes actual damage using spilanthol, sanshool, methyl anthranilate, allyl isothiocyanate, neem oil, etc., in addition to the cross-modal effect of claims 1 and 2.