JP2001017054A - Automatic count type pheromone trap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic count type pheromone trap capable of catching and accurately counting a larger number of insect pests. SOLUTION: This pheromone trap is equipped with an insect pest guide hole at the upper part of a peripheral wall, a ceiling plate 2 at the top, an insect pest catching means of a container provided with a water shallow vessel 3 at the bottom, an insect pest attracting means by a pheromone attached to the ceiling plate and a counting means provided with photoelectric sensors 4 and 5 fixed to the insect pest guide hole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic counting method for attracting and catching flying pests flying on paddy fields, fields, tea fields, turf, fruit trees, etc. where agricultural crops are cultivated, and automatically counting the number of catches. It is related to pheromone traps.

[0002]

2. Description of the Related Art A social environment has become necessary in which a minimum amount of agricultural chemicals must be applied in consideration of human safety and the environment. For that purpose, it has become necessary to grasp the occurrence of the pests accurately and quickly and to spray the insects efficiently. Investigations have traditionally been conducted to determine the occurrence of pests, and all of these methods capture and visually count pests, basins, sticking, electric shock,
They were captured by live capture. 62-
No. 94781, Japanese Utility Model Application Laid-Open No. 62-149970,
JP-A-62-149971, JP-A-62-149.
JP-A-972, JP-A-62-149973, JP-B-4-62695, JP-A-5-15285, JP-A-5-15286 and the like surely capture a flying pest. Although the shape of such various containers has been considered, the count of the captured pests has been performed by human eyes. Recently,
Examples of the automatic counting method include those described in JP-A-7-289137, JP-A-11-155458, and the like.

The problem is how to efficiently capture the pests that have been attracted and fly.
The method using a pressure-sensitive adhesive plate disclosed in JP-A-62695 can be efficiently captured, and has been adopted in pest control sites and the like in various parts of Japan.
However, the number of pests flying daily is 1000-200
There are days when there are more than zero animals, in which case the sticky surface is immediately covered by pests and subsequent pests escape. Observation of the tea pest, P. japonicus, limited the capture of 300-400 heads. In addition, there is also a problem that the cost is increased because the adhesive plate, which is a consumable item, needs to be replaced in a short time.

[0004]

In the automatic counting type pheromone trap, Japanese Unexamined Patent Publication Nos. Hei 7-289137 and Hei 11-155458 both use a natural fall method for capturing. The pests that have gathered on the pheromone will fly away after a few minutes to tens of minutes,
Enter the inside of the jar-shaped container provided at the bottom, kill the insects with the insecticide gas, drop the funnel and put it in an empty container, or enter the jar-shaped container and drop the funnel naturally. Then, there is a system that is adsorbed on the basin. However, both of them tried to fly away and stuck around the jaw-shaped container, and many flew off without falling into the funnel, and the number of captured fish was small. Therefore, capturing more is the first challenge.

[0005] Next, a method for automatically and more accurately counting the number of pests captured is required.
In Japanese Patent No. 9137, after dropping, a method is employed in which the first chamber is killed with insecticidal gas and further dropped. A sensor is provided in the funnel in the process, and electronic counting is performed. In Japanese Patent Application Laid-Open No. H11-155458, two-stage upper and lower photoelectric sensors are installed in a funnel part in the course of a natural fall, and a factor that wanders and disturbs the count is removed to improve the accuracy of the count. Extremely accurate counting became possible. But,
Both of these two automatic counting systems count the pests that pass through the jaw-shaped container and fall down the funnel. A second object of the present invention is to accurately count pests that enter a device without a funnel as described above and wander freely.

[0006]

The present invention employs the following means in order to solve the above-mentioned problems. (1) A pest guiding port at the upper part of the peripheral wall, a pest capturing means of a container provided with a ceiling plate at the upper part, and a basin at the lower part, a means for attracting pests by pheromones provided on the ceiling plate, and a pest guiding port And a counting means provided with a photoelectric sensor installed in the camera. (2) The interval of the counting by the counting means in (1) can be adjusted in advance.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS By means of the above (1), pests are attracted and captured, and the number is automatically counted. By means of the above (2), the number of pests captured in the above (1) can be grasped more accurately.

[0008]

EXAMPLE A basin stored in a container is used as a means for catching insects, and a small amount of neutral detergent is poured into water. The surface of the pest has oils and fats, and even if it crashes with water, it will not swim and sink, but this basin containing neutral detergent will not escape if the pest touches only a little water and if it moves, It sinks as it moves, and it sinks roughly after 5 to 10 minutes. The basin has a limited number of catches like a conventional adhesive plate,
The size of the container can be sufficient for catching 0 to 3000 horses. In the present embodiment, approximately 50 mm × 232 mm ×
A container of about 3.4 liters of 297 mm is used. The container is filled with about 2.5 liters of water, and 2-3 cc of a neutral detergent used in ordinary households. To prevent summer decay,
Add a preservative.

A pheromone is used as a means for attracting pests, and a pheromone agent is attached to the ceiling plate. The guide port provided on the peripheral wall of the container is provided at two places before and after, so that a pheromone smell can be easily released by air flow. In the present embodiment, there are two front and rear guide ports, but the guide ports may be open in three directions and four directions.
Pests fly away after sniffing the pheromone for a while, but always touch the water when the water surface is near. (There is almost no pest that has reached the pheromone agent and escaped again to the outside of the container.) In this embodiment, the distance between the water surface, the ceiling, and the pheromone is about 50 mm. This distance needs to be adjusted depending on the type of pest.
m to 200 mm is good.

In order to avoid malfunction of the photoelectric sensor due to rain falling in rainy weather, irradiating external light, flying dust, etc.
In this embodiment, an eave is provided at the guide port. It is advisable to increase the size of the eaves, but if the eaves are made too large, the pests will stay on the eaves for a long time and escape without being adsorbed on the water surface. Further, it is preferable that the eaves can be vertically slid in accordance with the weather or the kind of the pest.

As the counting means, a portion after the photoelectric sensor and a portion before the photoelectric sensor are installed on the left and right or up and down of the guide port provided on the peripheral wall of the container. In this embodiment, the guide port has a height of 25 mm. Although this height depends on the size of the photoelectric sensor to be used, the photoelectric sensor covers the entire entrance so that pests cannot escape. It is also possible to make the height of the guide port wider than the photoelectric sensor, and to insert a baffle above and below only the sensor part to narrow the insect passage range.

In the counting method, every time a vermin blocks the optical axis between the left and right light emitters and the light receiver, a signal is captured and counted. However, it is often wandering around the optical axis, and it is extremely difficult to accurately count. A control circuit in which a pair of photoelectric sensors is interrupted, and even if the same sensor is interrupted again, the circuit is ignored for several seconds and is not counted. The time of several seconds can be freely adjusted in advance (several seconds to several tens of seconds depending on the type of pest). If the gap between the actual number of captures and the electron count is large, adjusting this time will increase the accuracy. Pests that pass near the optical axis and approach the pheromone agent rarely return again, and most of the pests stick to the basin. Also,
The number of flying birds is also several tens of seconds apart, and several birds do not fly in one second. Therefore, by adjusting this time depending on the type of pest, a more accurate number of catches can be obtained.
For example, the time period of 3 seconds to 15 seconds is provided in the chanokokakumonhamaki.

In this embodiment, a pheromone agent for Lepidoptera anemone, a major insect pest of tea, was attached. Pests that have been disturbed in the vicinity fly one by one from the leeward, stay at various places of the device, and eventually crawl up to the top of the device with the pheromone attached. Not all of the flying objects reach the vicinity of the basin, some of them fly away, and some of them fly again. However, the movement after coming to the vicinity of the basin is roughly classified into two types. About 70 to 80% of the whole that reaches the pheromone by connecting the first ceiling, climbs up the second slope. About 20% are counted across the optical axis. The former is accurately counted across the sensor optical axis on the way. Some of the latter are captured directly by touching the water before reaching the pheromone, while others wander around the optical axis and eventually reach the pheromone via the ceiling. Anything that reaches the pheromone is captured by touching the surface of the water at the moment it flies off after a while, varying in time. Once the pheromone has been reached, almost everything is captured on the surface of the water.

As an experiment, the apparatus of the present invention was installed in a tea garden using a pheromone agent for Lepidoptera anemone, a major insect pest of tea, and used as a machine A. FIG.
A conventional natural fall system such as
It is set 0 m apart, and this is designated as Aircraft-B. FIG.
It is the observation data of the area from June 25 to July 5 of the year. The extent to which pests other than those attracted by the pheromone were introduced was also investigated. The pests intended for Aircraft-A are the visual counts of the pests for the purpose of attraction (in this experiment, Anopheles japonicus). Insects other than
Is the visual count captured. The total number of aircraft B caught is the number including insects for purposes other than attracting. These numbers are also greatly influenced by the weather. The measured value is 3 for the total number of aircraft B caught.
The total number of Aircraft-A was 1103 out of 46, which was 3.18 times more than that of the conventional equipment. The Aircraft-A electronic count is 14 for the Aircraft-A total 1103.
It is 31 and 1.29 times. The next count interval is adjusted by this numerical value. (In the case of this experiment, make it slightly longer.)

[0015]

According to the device of the present invention, counting is performed across the photoelectric sensor, and if the photoelectric sensor enters the inside of the container, it can be almost certainly captured. The capture rate has been significantly improved compared to the conventional natural fall method. The solution was to capture more. In addition, by adjusting the counting interval, even if the pest continues to fly near the photoelectric sensor, the error between the captured number and the electronic count is small, and the count can be made almost accurately. It is simple and inexpensive as a device for capturing a large amount and counting accurately.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present embodiment.

FIG. 2 is a front view of the embodiment.

FIG. 3 is a left side view of the embodiment.

FIG. 4 is a conceptual diagram of a conventional example.

FIG. 5 is a diagram showing the number of captured Anemone brassicae in Makinohara tea garden in Shizuoka Prefecture.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Attracting pheromone agent 2 Ceiling board 3 Basin container 4 After photoelectric sensor 5 Before photoelectric sensor 6 Count control part 7 Pest 8 Eave 9 Slope 10 Guide port 11 Machine frame 12 Jago-shaped container 13 Funnel part 14 Photoelectric sensor

Claims (2)

[Claims] 1. A pest guiding means in a container provided with a pest guiding port in an upper part of a peripheral wall, a ceiling plate in an upper part, and a basin in a lower part, and a means of attracting pests by a pheromone provided in the ceiling plate,
An automatic counting pheromone trap, characterized by comprising counting means provided with a photoelectric sensor installed at a pest guide port. 2. The counting interval by the counting means is
2. The automatic counting pheromone trap according to claim 1, wherein the pheromone trap is automatically adjustable.