JP3676094B2 - Annular sustained-release pheromone dispenser and its installation tool - Google Patents

Description

【００５３】
表１から明らかなように、実施例１（末端の融着部分の長さが２ｍｍ）、実施例２（同じく融着部分４ｍｍ）、実施例３（同じく融着部分１０ｍｍ）、比較例３（同じく融着部分２０ｍｍ）、および比較例４（アルミニウム細線入り）のフェロモンディスペンサーは、設置後に落下したものはなかった。防除効果が優れていた（被害率小さい）のは、実施例１、実施例２、実施例３、比較例３および比較例４のフェロモンディスペンサーである。実施例１〜３および比較例１〜３の環状徐放性フェロモンディスペンサーは比較例４より合成性フェロモン液の封入量が多く、設置本数を少なくしているめ、設置時間が短縮した。比較例３の環状徐放性フェロモンディスペンサーは、融着部分が２０ｍｍと大きくふくらんでいるため束や袋から取り出す際にこの部分が引っかかり、取り出しにくく、また環状徐放性フェロモンディスペンサー設置具への取り付けが良くないため、実施例に比べて設置時間が長くなった。
【００５４】
実施例４
高密度ポリエチレンを押し出し成形し、厚さ０．２５ｍｍ、巾１．５ｍｍのウエッブ１５で一体的に連結された各々の内径１．００ｍｍ、壁厚０．５ｍｍである２本のプラスチック細管１２ａおよび１２ｂを作製した。プラスチック細管１２ａおよび１２ｂを巻き取り機で巻き取る際、ウエッブ１５にミシン目状の回転刃２４を押し当て、ウエッブ１５にはミシン目１４が入れられた。各々のプラスチック細管１２ａおよび１２ｂにハマキムシの合成性フェロモンを吸入した後、プラスチック細管１２ａおよび１２ｂを２０ｃｍ間隔でプレス、超音波シールをして封鎖し、その封鎖部分を切断することによって、全長２０ｃｍの本発明の環状徐放性フェロモンディスペンサー１０を得た。この環状徐放性フェロモンディスペンサー１０を設置密度１５０本／１０ａの割合で１ｈａのリンゴ園に均等に設置した。設置作業は、ウエッブ１５のミシン目１４を引き裂くことによって、環状徐放性フェロモンディスペンサー１０を環状にし、図１１に示すようにリンゴの木の枝に環を通すことによって行った。
【００５５】
比較例５
実施例４との比較のため、内径１．００ｍｍ、壁厚０．５ｍｍのプラスチック細管とそのプラスチック細管に並べてアルミニウム線を封入して高密度ポリエチレンを押し出し成形し、チューブを作製した。このチューブにハマキムシの合成性フェロモンを吸入した全長２０ｃｍの従来のフェロモンディスペンサーを得た。この従来のフェロモンディスペンサーは、合成性フェロモンの封入量が本発明の環状徐放性フェロモンディスペンサー１０の半分になっているため、設置密度３００本／１０ａの割合で１ｈａのリンゴ園に均等に設置した。設置作業は、リンゴの木の枝に略逆Ｕ字形に曲げたフェロモンディスペンサーをかけ、一捻りすることによって行った。
【００５６】
その結果、実施例４に示す本発明の環状徐放性フェロモンディスペンサー１０は、設置密度が比較例５に示す従来のフェロモンディスペンサーに較べて１／２であるが、２本のプラスチック細管１２ａおよび１２ｂを有し合成性フェロモンの封入量が２倍であるため、実施例４の防除効果を示す被害率が比較例５と同等の１．４〜１．６％であった。実施例４の環状徐放性フェロモンディスペンサー１０は設置数が少ない上、設置作業が容易であるため、比較例５のフェロモンディスペンサーの設置作業の約半分以下の時間で終了した。
【００５７】
【発明の効果】
以上、説明したように本発明の環状徐放性フェロモンディスペンサーは、高い防除効果を示すとともに、設置作業がやりやすいだけではなく、設置状態を長時間安定に保ち、設置されている樹木を損傷することがない。さらに、包装や運搬に便利な直線の形状であり、金属線等を使用してないのでその回収作業も不要となる。また、本発明の製造方法により、環状徐放性フェロモンディスペンサーは均質なものが連続的に製造され、製造の合理化に役立つ。
【００５８】
本発明の環状徐放性フェロモンディスペンサー設置具を用いることにより、梯子や梯子車または専用フック等を使用することなく環状徐放性フェロモンディスペンサーを果樹等の高所に、容易かつ迅速に設置できるので防除作業時間が大巾に短縮でき、果樹などの生産コストの低減に繋がる。
【図面の簡単な説明】
【図１】本発明を適用する環状徐放性フェロモンディスペンサーの実施例の部分断面斜視図である。
【図２】本発明を適用する環状徐放性フェロモンディスペンサーの実施例の全体正面図である。
【図３】本発明を適用する環状徐放性フェロモンディスペンサーの製造途中を示す斜視図である。
【図４】本発明を適用する環状徐放性フェロモンディスペンサーの加熱加圧融着部分の製造途中を示す拡大斜視図である。
【図５】本発明を適用する別な環状徐放性フェロモンディスペンサーの実施例の全体正面図である。
【図６】本発明を適用する別な環状徐放性フェロモンディスペンサーの実施例の部分拡大断面図である。
【図７】本発明を適用する別な環状徐放性フェロモンディスペンサーのプラスチック細管を成形する実施例の部分斜視図である。
【図８】本発明を適用する環状徐放性フェロモンディスペンサーのウエッブの切り込み（溝）の実施例を示す斜視図である。
【図９】本発明を適用する環状徐放性フェロモンディスペンサーのウエッブの切り込み（ミシン目）の実施例を示す斜視図である。
【図１０】本発明を適用する環状徐放性フェロモンディスペンサーの使用状態の例を示す図である。
【図１１】本発明を適用する環状徐放性フェロモンディスペンサーの使用状態の別な例を示す図である。
【図１２】本発明の環状徐放性フェロモンディスペンサー設置具の要部を示す斜視図である。
【図１３】本発明の環状徐放性フェロモンディスペンサー設置具のフック部にフェロモンディスペンサーを取り付けた状態を示す要部斜視図である。
【図１４】本発明を適用する環状徐放性フェロモンディスペンサー設置具の使用状態の例を示す図である。
【符号の説明】
１は合成性フェロモン液、２ａ・２ｂはプラスチック細管、３は融着末端、４は中央部、５はリール、６は加熱加圧融着部分、７はプラスチック材、８は加熱プレス器、９はカッター、１０は環状徐放性フェロモンディスペンサー、１２ａ・１２ｂはプラスチック細管、１３は封鎖末端、１４は切り込み、１５はウエッブ、１６は中央部、１８は植物、２１・２２は有芯孔、２３はスリット、２４は刃、２５はダイ、２７はシリンダー、３１はワイヤ、３２はフック、３３は棒、３４は延長棒、３５は屈曲点、３６は植物の枝、３７は環状徐放性フェロモンディスペンサー設置具、３８は下端部、Ｌは有効長である。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an annular sustained release pheromone dispenser that disperses synthetic pheromones in the air in order to control insects by disrupting communication with the insects, a method for producing the same, and a pheromone dispenser installation tool.
[0002]
[Prior art]
Pest control by communication disruption is carried out by releasing the synthetic pheromone of the target pest into the atmosphere, disturbing communication between males and females to lower the mating rate, and suppressing the birth of the next generation. Therefore, the pheromone dispenser for releasing the synthetic pheromone is required to have a performance of releasing the synthetic pheromone stably during the generation period of the pest (2 to 6 months).
[0003]
Already commercially available pheromone dispensers, for example, a synthetic pheromone solution is sealed in a plastic container such as a tube type, bag type, bottle type, spiral tube type, etc. It is supposed to dissipate inside. Among these pheromone dispensers, what is said to be a tube type is a plastic tube (thin tube) container, which has a long period of release of synthetic pheromone vapor and a uniform release rate, so it has a control effect. Is the best compared to other types.
[0004]
When using a pheromone dispenser, it is installed so that the vapor of the synthetic pheromone is uniformly dissipated in the plant group, and it is stable and stable over a long period of time without harming or damaging the growth of the plant. It is necessary to keep the installation state.
[0005]
Conventionally, as tube-type pheromone dispensers satisfying such requirements, Japanese Patent Publication No. 61-16361 and Japanese Patent Publication No. 2-63017 have been disclosed in which metal wires such as aluminum are juxtaposed along a tube. Japanese Utility Model Laid-Open No. 62-122801 discloses a tube bent into a ring, and Japanese Utility Model Publication No. 63-722 discloses a bent tube.
[0006]
[Problems to be solved by the invention]
Pheromone dispensers with side-by-side metal wires have excellent shapeability because the tube is bent along with the metal wires, making it easy to install and wrap around plant branches and trunks. Although the state can be maintained, the remaining metal wire after being used is a problem. A pheromone dispenser that is bent into a tube or molded into a ring shape is not only costly for the molding process, but also due to the resiliency of the plastic, the bend grows over a long period of time and falls on the plant branches etc. Sometimes. Moreover, even if many pheromone dispensers are arranged for packaging, the arrangement is bad and bulky, and packaging and distribution costs are high.
[0007]
On the other hand, in order to save the trouble of installing a pheromone dispenser, there is a demand to increase the amount of synthetic pheromone emitted per unit and to reduce the installation density per unit area. The installation density can be reduced by increasing the capacity of the pheromone dispenser tube to increase the amount of the synthetic pheromone solution. However, if the tube length is increased in order to increase the capacity of the tube, it will be an obstacle to the installation work, and it will be difficult to carry out packaging and transportation. Although it is possible to increase the amount of synthetic pheromone encapsulated by increasing the diameter of the tube, in order to obtain the amount of synthetic pheromone diffused according to the amount encapsulated, the tube wall thickness is adjusted to increase the diffusion evaporation rate. There is a need. For this reason, it becomes difficult to form the tube, and the flexibility of the tube is lowered to make it difficult to bend, which makes installation work difficult.
[0008]
The present invention has been made to solve these problems, and has a shape that is convenient for packaging and transportation without impairing the radiation performance of the conventional tube-type pheromone dispenser. Another object of the present invention is to provide a sustained release pheromone dispenser that maintains its state stably and has no difficulty in treatment after it has been used.
[0009]
In addition, the gaseous sex pheromone released from this pheromone dispenser is heavier than air and diffuses downward, so it is necessary to install the pheromone dispenser at the height of the plant in order to float the sex pheromone in the space where the target pests live. There is. Another object of the present invention is to provide a tool capable of easily and quickly installing a pheromone dispenser at a high place.
[0010]
[Means for Solving the Problems]
An annular sustained-release pheromone dispenser to which the present invention is applied to achieve the above object will be described below with reference to the drawings corresponding to the examples.
[0011]
The cyclic sustained-release pheromone dispenser 10 of the present invention shown in FIG. 1 includes a synthetic pheromone solution 1 enclosed therein, a plurality of plastic thin tubes 2a and 2b that are deformed semi-elastically, and a distal end portion 3 thereof fused. The central part 4 (refer FIG. 2 (B)) is mutually connected, and can open | circulate independently, and can form cyclic | annular space. Three or more plastic capillaries can be arranged to form an annular sustained release pheromone dispenser.
[0012]
  Another annular sustained-release pheromone dispenser 10 of the present invention shown in FIG. 5 is formed by integrally forming a plurality of plastic thin tubes 12a and 12b with a web 15 along the longitudinal direction thereof, and forming a part of the web 15. In the longitudinal direction of plastic tubulesIn the middleA notch 14 for opening is provided, and the synthetic pheromone solution 1 (see FIG. 6) is sealed in each of the plurality of plastic thin tubes 12a and 12b, and both ends 13 of the plastic thin tubes 12a and 12b are connected to each other.FusedIt is sealed off.The ends 13 of the plastic thin tubes 12a and 12b may be sandwiched between plastic materials similar to the plastic thin tubes 12a and 12b, and then melted and sealed.
[0013]
The cut portion 14 of the annular sustained release pheromone dispenser 10 can be formed by forming a groove in the same direction as the longitudinal direction of the plastic thin tubes 12a and 12b as shown in FIG.
[0014]
Similarly, as shown in FIG. 9, the cut portion 14 can be formed by perforation in the same direction as the longitudinal direction of the plastic thin tubes 12a and 12b. Three or more plastic capillaries can be arranged to form an annular sustained release pheromone dispenser.
[0015]
  As shown in FIG. 3, the manufacturing method of the cyclic sustained release pheromone dispenser 10 of the present invention is as follows.Continuously formed by extrusionLong plastic tubules 2a and 2bA synthetic pheromone solution is sucked into the plastic thin tubes 2a and 2b.Side by sideWhispering continuously,Heat-pressure fusion is performed at a constant pitch, and the heat-pressure fusion portion 6 is cut. Specifically, after the plastic thin tubes 2a and 2b are mechanically pulled at a constant pitch, the plastic thin tubes 2a and 2b are pressurized with a pressure of 0.1 to 0.2 MPa, and 200 to 28 with an ultrasonic oscillator of 28 to 32 μm. Oscillate for ~ 600 mmsec, fuse and cut.
[0016]
In this manufacturing method, as shown in FIG. 4, heat-pressure fusion may be performed by sandwiching the heat-pressure fusion portion 6 with a plastic material 7 having the same quality as the plastic thin tubes 2a and 2b.
[0017]
  As shown in FIG. 7, another manufacturing method of the annular sustained release pheromone dispenser 10 of the present invention is provided with a plurality of cored holes 21 and 22 and slits 23 connecting the plurality of cored holes 21 and 22. After the plastic is extruded through the die 25 and a plurality of plastic capillaries 12a and 12b connected by the web 15 formed by the slit 23 are continuously formed, the longitudinal direction of the plastic capillaries 12a and 12b is subsequently formed on a part of the web 15. A cut portion 14 in the same direction is provided, and the synthetic pheromone solution 1 (see FIG. 6) is sealed in each of the plurality of plastic thin tubes 12a and 12b, and then the end 13 of each plastic thin tube 12a and 12b is attached.FusedIt is characterized by sealing.
[0018]
Examples of the material of the plastic thin tubes 2a and 2b, 12a and 12b, and the web 15 include, for example, low density polyethylene, high density polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, and ethylene-acrylic acid ester copolymer. Polymer, polyvinyl acetate, polyvinyl chloride resin, polystyrene, polyamide resin, polymethyl methacrylate, polycarbonate, polyvinyl alcohol, polyvinylidene chloride, polybutylene, methyl methacrylate-styrene copolymer, methyl pentene resin, ionomer, polyacetal, acetic acid Examples include cellulose, cellulose acetate butyrate, polyvinylidene fluoride and silicon resin thermoplastics. Also, at least one dicarboxylic acid selected from oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, sebacic acid, fumaric acid and maleic acid, ethylene glycol, propylene glycol, butanediol, pentanediol, A condensation polymer with at least one polyol selected from hexanediol, octanediol and decanediol, or at least one condensation polymer selected from lactic acid, hydroxyvaleric acid, hydroxycaproic acid and hydroxycapric acid, Alternatively, a polycaprolactone aliphatic polyester-based thermoplastic can also be used. The plastic material 7 sandwiching the heat and pressure fused portion 6 is completely fused by adopting the same material as that used for the plastic thin tube from among these plastic materials. In order to improve processability, lubricants, plasticizers, stabilizers, pigments and fillers may be added to these plastics.
[0019]
By continuous processing such as extrusion molding of the above plastic material, the inner diameter is 0.4-2 mm, more preferably 0.6-1.6 mm, and the wall thickness is 0.2-1.5 mm, more preferably A long plastic capillary of 0.3 to 0.8 mm is formed. Plastic tubes 2a and 2b, 12a and 12b are narrower in inner diameter than this range, and are difficult to mold, and it is not easy to suck a synthetic pheromone solution into the tubes. On the other hand, tubules with an inner diameter larger than this range can absorb a large amount of synthetic pheromone solution, but considering the amount of synthetic pheromone required for communication disturbance and the installation density of the cyclic sustained-release pheromone dispenser. The capacity becomes excessive and the synthetic pheromone solution is wasted. The wall thickness of the plastic capillaries 2a and 2b, 12a and 12b influences the diffusion evaporation rate of the synthetic pheromone as well as the selection of the plastic material. When the wall thickness is thinner than the above range, it is extremely difficult to form a thin tube. When the wall thickness is thicker than the above range, the diffusion rate of the synthetic pheromone becomes too slow, and the diffusion is too suppressed, and it is difficult to form a thin tube.
[0020]
The effective length L of the cyclic sustained-release pheromone dispenser 10 is 100 to 500 mm, and more preferably 100 to 400 mm. Below this range, the diameter of the ring formed by opening the central parts 4 and 16 is too small, making it difficult to work through the branches of plants, etc. Conversely, above this range, cyclic sustained-release pheromone dispensers are usually used. It is too long to target plants cultivated in the field, making it difficult to transport and losing its usefulness.
[0021]
The length of the fused portion of the end portions 3 and 13 of the annular sustained release pheromone dispenser 10 is 2 to 15 mm, and 3 to 10 mm is particularly preferable. If it is below this range, the fusion is insufficient and the two plastic capillaries 2a and 2b, or the two plastic capillaries 12a and 12b are separated and passed through the branches of the plant etc. May fall off. Being within this range is an unnecessarily long length from the viewpoint of fusion, and on the contrary, the overall length becomes too long, making it difficult to carry. In addition, as shown in FIG. 4, when the heat-pressure fusion part 6 is sandwiched between the plastic materials 7 having the same quality as the plastic thin tubes 2a and 2b and the heat-pressure fusion part is fused, the end parts 3 and 13 are strongly fused. It will be something.
[0022]
The web 15 connecting the plastic thin tubes 12a and 12b shown in FIG. 7 has a thickness that is 1/2 times to 1/20 times the outer diameter of the plastic thin tubes, in particular, 1/4 times to 1/10 times. The width is preferably 2 to 1/5 times the outer diameter of the plastic thin tube, and particularly preferably 1 to 1/4 times. If it is too thick, the surface area of the outer periphery of the plastic thin tubes 12a and 12b that comes into contact with the air is relatively reduced, the amount of the synthetic pheromone diffused is reduced, and the economy is inferior. On the other hand, if the thickness is too thin, the plastic thin tubes are separated from each other and an inconvenience of not forming an annular shape occurs. On the other hand, if the width of the web 15 is too large, it is not only wasteful but also difficult to perform the installation work. If it is too small, it becomes difficult to cut a groove for forming the cut portion 14 and to make a perforation.
[0023]
As shown in FIG. 12, the annular sustained release pheromone dispenser installation tool 37 of the present invention is a wire having hooks 32 at both upper ends for attaching and detaching the opened annular sustained release pheromone dispenser 10 (see FIG. 13). A lower end 38 is attached to the tip of the rod 33.
[0024]
The wire is preferably bent in a Y shape and connected to the rod 33. The shape of the hook 32 is preferably a spiral shape, a U shape or a V shape.
[0025]
The wire 31 and the hook 32 are preferably made of materials having appropriate elasticity, resilience, and repulsion. Specifically, it is selected from piano wire, synthetic resin wire, composite wire of synthetic resin and metal wire, and metal wire having the above performance. The lower end 38 of the wire is attached to an appropriate length of SUS, synthetic resin, fiber reinforced plastic, metal pipe or bamboo or wooden stick 33. The bar 33 may be connected to an extendable bar 34 that can expand and contract according to the height of the plant to be controlled.
[0026]
The length from the hook 32 to the bending point 35 of the wire is 1/6 times to 2/6 times the circumference of the annular pheromone dispenser to be installed, and the Y-shaped angle is 40 ° to 120 °, particularly 60 °. A range of ° to 100 ° is preferred. If this length or angle is out of the above range, the pheromone dispenser becomes difficult to spread in a ring shape, and it is difficult to install it on a plant.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 3, the annular sustained-release pheromone dispenser of the present invention is manufactured starting from a process of continuously molding an infinitely long plastic capillary by continuous processing such as extrusion. The plastic thin tubes 2a and 2b are cut to an appropriate length, and the synthetic pheromone solution is sucked by a suction pump and wound on a reel 5. The two thin plastic tubes 2a and 2b are arranged side by side and continuously rolled out, and are fused to the desired length, that is, the effective length L of the pheromone dispenser (see FIG. 1) by the heating press 8. The two are joined at that portion, and the inside of the tube is sealed. Next, the center of the heat-pressed fusion part 6 formed in this way is cut with a cutter 9 to complete the annular sustained-release pheromone dispenser 10 shown in FIG.
[0028]
Another annular sustained release pheromone dispenser of the present invention is made starting from the process of continuously molding infinite length integral plastic tubules 12a and 12b as shown in FIG. After the molten plastic is extruded through a die 25 attached to a cylinder 27 of an extruder (not shown), parallel plastic capillaries 12a and 12b having the web 15 are cooled and cooled. After making perforated cuts, wind up with infinite length according to the molding process. After cutting it into an appropriate length and filling the plastic tubules 12a and 12b with the synthetic pheromone solution 1, the plastic tubules 12a and 12b are respectively sealed with a fixed size, and the sealed central position together with the web 15 is sealed. Separate.
[0029]
As a result, the two plastic capillaries 12a and 12b in which the synthetic pheromone solution 1 is sealed and the end 13 is sealed are integrated by the web 15 as shown in FIG. The annular sustained-release pheromone dispenser 10 in which the cut portion 14 is provided in the center portion of the web 15 is completed.
[0030]
The method of using the annular sustained release pheromone dispenser 10 shown in FIG. 2 will be described in more detail. As shown in FIG. 1 and FIG. 2, the pheromone dispenser 10 has two plastic thin tubes 2a and 2b in which a synthetic pheromone liquid 1 is sealed, and its end portion 3 (corresponding to the heat-pressure fusion portion 6) is arranged. They are fused and connected to each other, and the central portions 4 are independent of each other. Since the plastic thin tubes 2a and 2b are made of a semi-elastically deformable material, an annular space is formed by pulling the central portion 4 outward as shown by an arrow as shown in FIG. The plastic thin tubes 2a and 2b are hung on the hook 32 of the annular sustained-release pheromone dispenser installation tool, and in the annular space, as shown in FIG. 10 and FIG. Through, the annular sustained release pheromone dispenser 10 is installed.
[0031]
In this annular sustained-release pheromone dispenser 10, the two plastic capillaries 2 a and 2 b in which the synthetic pheromone liquid 1 is sealed are arranged, so that the diffusion permeation amount of the synthetic pheromone is doubled. Therefore, the installation density can be halved as compared with the conventional pheromone dispenser, and the installation work time can be shortened.
[0032]
The expanded ring of the cyclic sustained-release pheromone dispenser 10 tries to recover by elasticity, moderately suppresses the twigs that are passed through, and adapts and deforms without damaging the cultivated plants and without hindering the growth. The installation state can be maintained stably over a period.
[0033]
In such an installation state, the synthetic pheromone diffused and transmitted through the walls of the plastic thin tubes 2a and 2b of the annular sustained-release pheromone dispenser is gradually diffused into the atmosphere as a vapor, so that the concentration of the sex pheromone in the atmosphere Rises, disrupts the communication between the male and female pests, and suppresses the birth of the next generation.
[0034]
The cyclic sustained-release pheromone dispenser shown in FIG. 5 is used in the same manner as that shown in FIG.
[0035]
Next, the cyclic | annular sustained release pheromone dispenser installation tool of this invention is demonstrated in detail based on FIGS.
[0036]
As shown in FIG. 12, the annular sustained-release pheromone dispenser installation tool of the present invention has a metal wire 31 bent in a Y-shape at a middle point 35 and hooks 32 on both ends of the wire on which the pheromone dispenser can be attached and detached. Have. The lower end 38 of the wire is attached to the tip of the rod 33 by welding or binding. The bar 33 may be connected to a telescopic extension bar 34.
[0037]
The sustained-release pheromone dispenser 10 has a notch opened (see FIG. 2 (B)), and as shown in FIG. 13, the two thin plastic tubes 2a and 2b of the annular sustained-release pheromone dispenser 10 are each a pheromone dispenser. Hang on the hook 32 of the installation tool. As shown in FIG. 14, the branch 36 is passed through the annular space of the pheromone dispenser 10. When the installation tool is pulled downward, the pheromone dispenser 10 is detached from the hook portion 32 and installed at a predetermined position.
[0038]
When the wire is bent in a Y shape, the pheromone dispenser can be prevented from coming off the hook 32 by touching the branches and leaves of the plant when the annular sustained release pheromone dispenser is passed through the tree branch.
[0039]
By using the installation tool of the present invention, the cyclic sustained-release pheromone dispenser can be easily and quickly attached to a high place, so that the cost required for pest control is significantly reduced.
[0040]
Examples of the present invention will be described in detail below, but the present invention is not limited thereto.
[0041]
Examples 1-3 show the Example of the cyclic | annular sustained release pheromone dispenser shown in FIG. 2 which applies this invention. Example 4 shows an example of another cyclic sustained-release pheromone dispenser shown in FIG. 5 to which the present invention is applied. Comparative Examples 1 to 5 show examples of pheromone dispensers to which the present invention is not applied.
[0042]
Example 1
High-density polyethylene was extruded to produce a plastic thin tube 2 having an inner diameter of 0.84 mm and a wall thickness of 0.35 mm. The synthetic pheromone solution 1 of a caterpillar was inhaled into this plastic thin tube 2. Two plastic thin tubes 2 were aligned and heat-pressed with a mold 8 having a length of 4 mm at a pitch interval of 204 mm and fused, and the fused portion 6 was cut to obtain an annular sustained-release pheromone dispenser 10. The cyclic sustained-release pheromone dispenser of Example 1 has an effective length L = 200 mm and a total length of 204 mm. Since the amount of the synthetic pheromone solution encapsulated is about 80 mg per capillary tube, it is about 160 mg per circular sustained-release pheromone dispenser with two capillary tubes.
[0043]
Example 2
A cyclic sustained-release pheromone dispenser was obtained in the same manner as in Example 1 except that two plastic capillaries containing a synthetic pheromone solution were heat-pressed and fused with a mold having a length of 8 mm at a pitch interval of 208 mm. . The cyclic sustained-release pheromone dispenser of Example 2 is the same as the cyclic sustained-release pheromone dispenser of Example 1 except that the length of the fused portion at the end is 4 mm and the total length is 208 m. .
[0044]
Example 3
Similarly, the same cyclic sustained-release pheromone dispenser as in Example 1 was obtained except that the length of the fused portion at the end was 10 mm and the total length was 220 mm.
[0045]
Comparative Example 1
A cyclic sustained-release pheromone dispenser was obtained in the same manner as in Example 1 except that two plastic capillaries containing a synthetic pheromone solution were heat-pressed and fused with a mold having a length of 1 mm at a pitch interval of 201 mm. . The cyclic pheromone dispenser of Comparative Example 1 is the same as the cyclic sustained release pheromone dispenser of Example 1 except that the length of the fused portion at the end is 0.5 mm and the total length is 201 mm.
[0046]
Comparative Example 2
Similarly, the same cyclic sustained-release pheromone dispenser as in Example 1 was obtained except that the length of the fused portion at the end was 1 mm and the total length was 202 mm.
[0047]
Comparative Example 3
Similarly, the same cyclic sustained-release pheromone dispenser as in Example 1 was obtained except that the length of the fused portion at the end was 20 mm and the total length was 240 mm.
[0048]
Comparative Example 4
A tube in which aluminum fine wires are juxtaposed adjacent to a plastic thin tube having an inner diameter of 0.84 mm and a wall thickness of 0.35 mm was manufactured by extrusion molding of high-density polyethylene. A synthetic bean beetle synthetic pheromone solution was inhaled into this thin plastic tube, and was heat-pressed and fused with a mold having a length of 8 mm at a pitch interval of 208 mm, and the fused portion was cut to obtain a pheromone dispenser. The pheromone dispenser of Comparative Example 4 has an effective length L = 200 mm, a terminal fused portion length of 4 mm, and a total length of 208 mm. The amount of the synthetic pheromone solution encapsulated is about 80 mg.
[0049]
As an experimental field, 8 fields of 1 ha apple orchards with similar conditions were secured. In 6 of those fields, the cyclic sustained-release pheromone dispensers of Examples 1 to 3 and Comparative Examples 1 to 3 were 250 / ha at a height of 2.5 to 3.0 m above the ground and 500 / ha as expected. A total of 750 lines / ha was evenly arranged. The installation tool of the present invention was used for installation at a high place. In another field, the pheromone dispenser of Comparative Example 4 is evenly arranged at a height of 2.5 to 3.0 m above the ground at 500 lines / ha and 1000 lines / ha as planned. did. The installation tool of the present invention was used for installation at a high place. Furthermore, no pheromone dispenser was installed in the remaining 1 field for comparison. In addition, only the pheromone dispenser of Comparative Example 4 halves the amount of the synthetic pheromone solution compared to the cyclic pheromone dispenser 10 of the other examples, and doubles the installation density in order to make the amount of the synthetic pheromone diffused the same. did.
[0050]
The installation work of the cyclic sustained-release pheromone dispensers of Examples 1 to 3 and Comparative Examples 1 to 3 was performed by expanding the central part of the cyclic sustained-release pheromone dispenser into a ring shape, and as shown in FIG. This was done by passing a ring through the branch. The pheromone dispenser of Comparative Example 4 was installed by applying a pheromone dispenser bent in a substantially inverted U shape to an apple tree branch and twisting it.
[0051]
Two months after the installation of the pheromone dispenser, the drop rate of the dispenser and the damage rate due to the beetles were investigated in each field. The damage rate is expressed as a percentage of the number of leaves in which 1000 leaves were randomly selected from each field, and the damage caused by caterpillars was observed. The results are shown in Table 1. In addition, describe the time required for the installation work of the pheromone dispenser.
[0052]
[Table 1]

[0053]
As is apparent from Table 1, Example 1 (the length of the fused portion at the end is 2 mm), Example 2 (also the fused portion 4 mm), Example 3 (also the fused portion 10 mm), and Comparative Example 3 ( Similarly, none of the pheromone dispensers of the fusion part 20 mm) and Comparative Example 4 (with aluminum fine wire) dropped after installation. The pheromone dispensers of Example 1, Example 2, Example 3, Comparative Example 3 and Comparative Example 4 were excellent in controlling effect (small damage rate). The cyclic sustained release pheromone dispensers of Examples 1 to 3 and Comparative Examples 1 to 3 had a larger amount of synthetic pheromone solution than Comparative Example 4, and the number of installations was reduced, so that the installation time was shortened. The annular sustained-release pheromone dispenser of Comparative Example 3 has a large fused portion of 20 mm, so this portion is caught when taken out from a bundle or bag, and is difficult to remove, and is attached to the annular sustained-release pheromone dispenser installation tool. Is not good, so the installation time is longer than in the example.
[0054]
Example 4
Two plastic capillaries 12a and 12b each having an inner diameter of 1.00 mm and a wall thickness of 0.5 mm, which are formed by extruding high-density polyethylene and integrally connected by a web 15 having a thickness of 0.25 mm and a width of 1.5 mm. Was made. When the plastic thin tubes 12a and 12b were wound with a winder, a perforated rotary blade 24 was pressed against the web 15, and the web 15 was provided with a perforation 14. After inhaling the caterpillar synthetic pheromone into each of the plastic tubules 12a and 12b, the plastic tubules 12a and 12b are pressed at intervals of 20 cm, sealed with an ultrasonic seal, and the sealed portion is cut to give a total length of 20 cm. The cyclic sustained release pheromone dispenser 10 of the present invention was obtained. This cyclic sustained-release pheromone dispenser 10 was evenly installed in a 1-ha apple orchard at an installation density of 150 pieces / 10a. The installation work was performed by tearing the perforation 14 of the web 15 to make the annular sustained-release pheromone dispenser 10 annular and passing the ring through the branches of the apple tree as shown in FIG.
[0055]
Comparative Example 5
For comparison with Example 4, a plastic thin tube having an inner diameter of 1.00 mm and a wall thickness of 0.5 mm and an aluminum wire were sealed in the plastic thin tube, and high-density polyethylene was extruded to produce a tube. A conventional pheromone dispenser having a total length of 20 cm was obtained by inhaling a caterpillar synthetic pheromone into this tube. Since this conventional pheromone dispenser has half the amount of synthetic pheromone enclosed in the cyclic sustained-release pheromone dispenser 10 of the present invention, it is evenly installed in an apple orchard of 1 ha at an installation density of 300 / 10a. . The installation work was performed by applying a pheromone dispenser bent in a substantially inverted U shape to the apple tree branch and twisting it.
[0056]
As a result, the annular sustained-release pheromone dispenser 10 of the present invention shown in Example 4 has a setting density of 1/2 that of the conventional pheromone dispenser shown in Comparative Example 5, but the two plastic capillaries 12a and 12b. Since the amount of the synthetic pheromone encapsulated was twice, the damage rate showing the control effect of Example 4 was 1.4 to 1.6%, equivalent to Comparative Example 5. Since the cyclic sustained-release pheromone dispenser 10 of Example 4 has a small number of installations and is easy to install, it was completed in about half or less of the installation work of the pheromone dispenser of Comparative Example 5.
[0057]
【The invention's effect】
As described above, the annular sustained-release pheromone dispenser of the present invention exhibits a high control effect and not only facilitates installation work but also keeps the installation state stable for a long time and damages the installed trees. There is nothing. Furthermore, it is a straight line shape that is convenient for packaging and transportation, and since no metal wire or the like is used, the recovery operation is also unnecessary. In addition, according to the production method of the present invention, a uniform cyclic sustained-release pheromone dispenser is continuously produced, which is useful for rationalization of production.
[0058]
By using the annular sustained release pheromone dispenser installation tool of the present invention, the annular sustained release pheromone dispenser can be easily and quickly installed at a high place such as a fruit tree without using a ladder, a ladder car or a dedicated hook. The control work time can be greatly shortened, leading to a reduction in production costs for fruit trees and the like.
[Brief description of the drawings]
FIG. 1 is a partial sectional perspective view of an embodiment of an annular sustained release pheromone dispenser to which the present invention is applied.
FIG. 2 is an overall front view of an embodiment of an annular sustained release pheromone dispenser to which the present invention is applied.
FIG. 3 is a perspective view showing an intermediate process of the annular sustained release pheromone dispenser to which the present invention is applied.
FIG. 4 is an enlarged perspective view showing a process in the middle of manufacturing a heat and pressure fused part of an annular sustained release pheromone dispenser to which the present invention is applied.
FIG. 5 is an overall front view of another embodiment of an annular sustained-release pheromone dispenser to which the present invention is applied.
FIG. 6 is a partially enlarged cross-sectional view of another embodiment of an annular sustained release pheromone dispenser to which the present invention is applied.
FIG. 7 is a partial perspective view of an embodiment of molding a plastic capillary of another annular sustained release pheromone dispenser to which the present invention is applied.
FIG. 8 is a perspective view showing an embodiment of a web cut (groove) of an annular sustained-release pheromone dispenser to which the present invention is applied.
FIG. 9 is a perspective view showing an embodiment of a web cut (perforation) of an annular sustained-release pheromone dispenser to which the present invention is applied.
FIG. 10 is a diagram showing an example of a usage state of an annular sustained release pheromone dispenser to which the present invention is applied.
FIG. 11 is a diagram showing another example of the usage state of the cyclic sustained-release pheromone dispenser to which the present invention is applied.
FIG. 12 is a perspective view showing a main part of the annular sustained release pheromone dispenser installation tool of the present invention.
FIG. 13 is a perspective view of a main part showing a state in which the pheromone dispenser is attached to the hook part of the annular sustained release pheromone dispenser installation tool of the present invention.
FIG. 14 is a view showing an example of a usage state of an annular sustained release pheromone dispenser installation tool to which the present invention is applied.
[Explanation of symbols]
1 is a synthetic pheromone solution, 2a and 2b are plastic capillaries, 3 is a fusion end, 4 is a central portion, 5 is a reel, 6 is a heat and pressure fusion portion, 7 is a plastic material, 8 is a heating press, 9 Is a cutter, 10 is an annular sustained-release pheromone dispenser, 12a and 12b are plastic capillaries, 13 is a closed end, 14 is a notch, 15 is a web, 16 is a central part, 18 is a plant, 21 and 22 are cored holes, 23 Is a slit, 24 is a blade, 25 is a die, 27 is a cylinder, 31 is a wire, 32 is a hook, 33 is a rod, 34 is an extension rod, 35 is a bending point, 36 is a plant branch, 37 is an annular sustained release pheromone A dispenser installation tool, 38 is a lower end portion, and L is an effective length.

Claims (6)

A plurality of plastic tubules are connected by a web along the longitudinal direction and integrally formed of plastic, and a cut portion for opening at a central portion in the longitudinal direction of the plastic tubule is provided in a part of the web. An annular sustained-release pheromone dispenser characterized in that a synthetic pheromone solution is sealed in each of the plastic tubules, and the ends of each plastic tubule are fused and sealed. The annular sustained-release pheromone dispenser according to claim 1 , wherein the cut portion is a groove in the same direction as the longitudinal direction of the plastic thin tube. The annular sustained-release pheromone dispenser according to claim 1 , wherein the cut portion is a perforation in the same direction as the longitudinal direction of the plastic thin tube. Plastic is extruded through a die provided with a plurality of cored holes and slits connecting the cored holes, and a plurality of plastic thin tubes connected by a web formed by the slits are continuously formed, A cut portion in the same direction as the longitudinal direction of the plastic tubule is provided in a part of the web, and a synthetic pheromone solution is sealed in each of the plurality of plastic tubules, and then the end of each plastic tubule is fused and sealed. A process for producing a cyclic sustained-release pheromone dispenser characterized by The method for producing an annular sustained-release pheromone dispenser according to claim 4, wherein an end of each plastic thin tube is sandwiched between plastic materials having the same quality as the plastic thin tube and melted and sealed. Synthetic pheromone liquid is enclosed, a plurality of semi-elastically deformable plastic tubules are arranged, the end portions thereof are fused and connected to each other, and the central portions are independently opened to form an annular space. An open, sustained-release pheromone dispenser;
A plurality of plastic thin tubes are connected by a web along the longitudinal direction thereof, and are integrally formed of plastic, and a cut portion for opening the plastic thin tubes in the longitudinal direction of the plastic thin tube is provided in a part of the web. An open annular sustained release pheromone dispenser in which each of the capillaries is filled with a synthetic pheromone solution and the ends of each plastic capillaries are sealed ;
An annular sustained-release pheromone dispenser installation tool, wherein lower ends of wires having hooks for attaching / detaching either of them are attached to the tip of a rod.

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