JP5330611B1 - Method for suppressing sprouting of tree and sprouting sheet for tree - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of sprout branches to be pruned and reduce the labor and cost required for tree maintenance, and at the same time, sunburn, cold damage, insect damage, and beast that cause decay and withering To provide a method for suppressing the sprouting of a tree that can protect trees from harm, and that can also be applied with a unique decoration by utilizing the silhouette of the tree, and a sheet used therefor.
SOLUTION: With respect to the main trunk S and main branch B of the tree T, the shading rate is 95% or more, the tensile strength is 100N / 5cm or more in the longitudinal direction, 50N / 5cm or more in the transverse direction, and the water permeability is 1.0 × 10 ^-4 cm / A method was adopted in which a breathable sheet 1 made of a fabric having a sec or more and weather resistance of 70% or more is wound in a tension state to cover the surface.
[Selection] Figure 1

Description

  The present invention is an improvement of the method for suppressing the sprouting of trees, more specifically, the number of sprouting branches to be pruned can be reduced to reduce the labor and cost required for the maintenance of the tree, and also the sun and cold damage. The present invention relates to a method for suppressing sprouting of a tree, which can protect a tree from insect damage, animal damage, and the like, and can also decorate the tree with a unique appearance, and a sheet used therefor.

  As is well known, street trees planted on the side of roads and landscaping trees planted in parks and gardens will leave the leaves and leaves look bad if they are left unattended, or die due to illness or damage. It is necessary to maintain the appearance and health by regularly carrying out care (for example, pruning work to cut off unnecessary branches or snow hanging work to prevent branch breakage).

  However, with regard to the above pruning work, it is not only troublesome for an amateur to do, but it can also damage and weaken the tree. On the other hand, if you ask a craftsman with specialized knowledge and skills, you can maintain the tree Cost is high and easy to attach. Therefore, the present inventor has come up with a method of reducing the number of sprout branches by winding a cloth around a tree in order to reduce the labor and cost of pruning work.

  However, since the technique for winding a sheet around a tree is already known for other uses, there is no breakthrough in covering the tree with a cloth itself. For example, in Patent Documents 1 to 3, a coarse cloth wrapped around a tree is used to shield and keep warm, and further impregnated with an insecticide to protect the tree from sunburn, cold damage, and insect damage that cause decay. Techniques to do this are disclosed.

  In addition, in the technique according to Patent Document 4, the tree is protected from physical damage by covering the base portion of the trunk with a net so that the bark is not peeled off by birds and beasts such as wild bears and deers. These techniques are similar to the method of suppressing the emergence of sprout branches that the present inventors have conceived in that the surface of a tree having a different purpose is covered with a cloth (net).

  However, in the above-described prior art, since relatively coarse cloths are used, even if covered with these cloths, new buds sprout from the gaps between the yarns and growth of the buds cannot be suppressed. Incidentally, although the techniques according to Documents 1 to 3 aim at light shielding, it is only necessary to reduce the amount of sunlight irradiation so that there is no need to use a fine cloth.

  In addition, in the techniques according to the above documents 1 to 3, since a relatively low-strength material such as jute yarn is used as the material of the cloth, even if the tree is covered with a fine cloth, the shoots break through the cloth. There is a high possibility that it will sprout. This can be easily understood from the fact that the weedproof sheet that suppresses the growth of weeds is made of a very strong material.

  On the other hand, conventionally, a technique for winding a resin film, not a fabric, around a tree is known (see Patent Documents 5 and 6). However, a sheet made of such a resin film has almost water permeability and air permeability. Therefore, if most of trunks and branches are covered with a sheet, the tissue of the covered part becomes respiratory failure, and there is a risk that the health condition of the tree itself will be significantly impaired.

  Moreover, since the sheet | seat which consists of the said resin film and a nonwoven fabric is lower than a softness | flexibility than a fabric, it is easy to be stiff when winding on a tree. Therefore, not only is it difficult to wind a sheet tightly in contact with a tree, but also the silhouette of tree trunks and branches is beautiful when decorating a tree by winding a sheet with color, pattern, or gloss. It is also difficult to put out.

JP 49-31655 A JP-A-3-56222 JP-A-2-300102 JP 2004-229564 A JP 2000-342085 A Japanese Patent Laid-Open No. 10-276655

  The present invention has been made in view of the problems as described above, and its purpose is to reduce the number of sprout branches to be pruned and reduce the labor and cost required for tree maintenance. In addition, it is possible to protect trees from sunburn, cold damage, insect damage, beast damage, etc. that cause decay and withering, and it is also possible to make unique decorations utilizing the silhouette of trees It is providing the sprouting suppression method and the sheet | seat used for it.

  Means employed by the present inventor for solving the above-described problems will be described with reference to the accompanying drawings.

That is, the present invention is a method for suppressing the sprouting of a tree that suppresses the emergence of new shoots from the side surface or cut surface of the main trunk S or main branch B of the tree T,
With respect to the main trunk S and main branch B of the tree T, the shading rate is 95% or more, the tensile strength is 100N / 5cm or more in the longitudinal direction, 50N / 5cm or more in the transverse direction, and the hydraulic conductivity is 1.0 × 10 ⁻⁴ cm / sec or more. And it is characterized in that the breathable sheet 1 made of a fabric having a weather resistance of 70% or more is wound in a tension state to cover the surface. The breathable sheet 1 is preferably a multi-woven fabric with a low light shielding rate and a high tensile strength.

  Furthermore, with respect to the breathable sheet 1, it is preferable to use a sheet having a tensile strength of 500 N / 5 cm or more in the longitudinal direction and 300 N / 5 cm or more in the transverse direction in order to obtain a sufficient effect, ideally 1500 N in the longitudinal direction. Use / 5cm or more, lateral 1000N / 5cm or more.

  The “light shielding rate” is a value measured according to the JISL1055A method. The “tensile strength” is a value obtained by measuring the strength in the longitudinal direction and the transverse direction in accordance with JISL1096 and converting it to a width of 5 cm. In addition, the “water permeability coefficient” is a value measured according to JIS A1218. The “weather resistance” is a value measured according to JIS A1415.

  Further, in the present specification, the above “main trunk” is used as a term indicating the trunk that forms the skeleton of the tree T, and the “main branch” is a branch that branches off from the main trunk and that is not particularly cut off by pruning. Used as a term to indicate.

  On the other hand, regarding the fixing means of the breathable sheet 1, the wound sheet end is fixed by the weather-resistant adhesive tape 2 so that the sheet does not come off even if left for a long time while being wound around the tree T. Is desirable.

  Further, when the air-permeable sheet 1 is wound around the tree T, the surface of the tree T is cleaned and a disinfectant / insecticide is sprayed on the cleaned tree T surface, thereby preventing the occurrence of diseases and insect damage. Similarly, if a resin coating material is applied to the main trunk S or main branch B of the tree T before winding the breathable sheet, disease infection can be prevented.

  Furthermore, the glossiness of the surface of the breathable sheet 1 is set to 30% or more at a measurement angle of 60 °, or the surface color of the breathable sheet 1 is set to a bright color with a Munsell value of 7.0 or more, or the breathability. By including a glossy color such as silver or gold in the surface color of the sheet 1, it is possible to increase the light reflectivity and obtain an insect repellent effect in which aphids and the like do not easily stick.

  In the present invention, a fabric having a high tensile strength is used for the sheet covering the tree, and the sheet is tightly wound around the main trunk, main branch, and cut of the tree, thereby eliminating the problem that the shoots sprout through the sheet. Therefore, it is possible to suppress the growth of shoots and reduce the number of sprout branches to be pruned.

  In addition, since the sheet | seat which coat | covers the said tree uses the fine cloth (high thread density) with a high light-shielding rate, there is no worry that a sprout will sprout from the clearance gap between threads. Moreover, since the direct sunlight is almost blocked by the coated sheet, photosynthesis is not actively performed around the shoots hidden on the surface of the tree.

  Moreover, in the present invention, since the fabric having water permeability and air permeability is used for the covering sheet, there is no problem that the breathing function of the trunk and branches is impaired by the covering sheet. Further, since the coated sheet of the present invention has excellent weather resistance, even if it is left outdoors for a long period of time, the tensile strength is not significantly lowered and the above effects are not lost.

  In addition, the covering sheet can prevent sunburn and cold damage of trees, and also helps to prevent insect damage and beast damage. On the other hand, if a sheet with high designability is wrapped around a tree, the tree can be decorated with a unique appearance, and a particularly flexible fabric can be wrapped beautifully without breaking the silhouette of the tree, It can be decorated with a nice appearance.

  Furthermore, by winding the covering sheet around the wound of the tree like a bandage, the growth of the callus can be stabilized and the wound can be covered with the resin quickly, so that the physiological action of the tree can be promoted. In addition, even when pests adhere to the surface of the covering sheet or an epiphytic plant is generated, these can be removed simply by replacing the covering sheet, so that it is possible to easily prevent diseases.

  Before winding the cover sheet on the tree, create the current state (injury presence / absence or tree vigor), past progress, environmental condition of the cycle, etc. as a field chart, after winding the cover sheet It is desirable to be able to check whether the progress of this is good.

  Therefore, according to the present invention, it is possible to greatly reduce the labor and cost of the pruning work required for the maintenance of trees, and to use it for the decoration of street trees and landscaping trees for a novel and impressive landscape. Since it is possible to provide a technique for suppressing the emergence of new trees that can be produced, the practical utility value of the present invention is very high.

It is a state explanatory drawing showing the state of the tree after winding the sheet | seat in Example 1 of this invention. It is an expanded sectional view showing the structure of the air permeable sheet in Example 1 of the present invention. It is a state explanatory drawing showing the state of the tree under construction in Example 1 of the present invention.

“Example 1”
A first embodiment of the present invention will be described with reference to FIGS. In the figure, what is indicated by reference numeral 1 is a breathable sheet made of fabric, and what is indicated by reference numeral 2 is an adhesive tape.

[Breathable sheet]
First, as shown in FIG. 1, a fabric excellent in light-shielding property, strength, water permeability, and weather resistance is prepared as a breathable sheet 1 used by being wound around the main trunk S or main branch B of the tree T. In this example, the breathable sheet 1 has a mass per unit area of 185 g / m ² , a light shielding ratio of 99.9%, a tensile strength of 1800 N / 5 cm (900 N / 25 mm) in the vertical direction, and 1200 N / 5 cm (600 N) in the horizontal direction. / 25 mm), a water permeability of 1.0 × 10 ⁻³ cm / sec, and a fabric having a weather resistance of 70%.

  In this embodiment, a polyester woven fabric having a double woven structure having a high yarn density and excellent light-shielding properties and tensile strength is used for the breathable sheet 1, and further, as shown in FIG. The black light 11 in which carbon powder is kneaded into the back side (or front side) and the center of the yarn constituting the structure is used to further improve the light shielding property of the fabric.

  Furthermore, in this example, in order to improve the weather resistance of the fabric used as the breathable sheet 1, an ultraviolet absorber (benzotriazole type, benzophenone type, etc.) is included. Further, the above fabric is impregnated with a flame retardant or insect repellent other than the ultraviolet absorber, thereby adding a fire and insect repellent function.

  On the other hand, the color pattern of the breathable sheet 1 is a surface color close to the color of the bark. Further, in this embodiment, the permeable sheet 1 is made of a woven fabric having a satin structure on the surface side to give gloss to the surface of the permeable sheet 1. Of course, if necessary, the surface of the breathable sheet 1 can be patterned by printing or embroidery.

[Adhesive tape]
Next, as shown in FIG. 3, when the breathable sheet 1 is wound around the tree T, an adhesive tape 2 for fixing the sheet end is prepared. In this embodiment, the adhesive tape 2 is excellent in weather resistance, and the color pattern is matched to the breathable sheet 1. In addition, this sticking tape 2 is used also when closing the clearance gap between the air permeable sheets 1.

[Construction method]
Next, the construction procedure of the present embodiment using the construction material will be described. First, as a preparation stage, pruning of main branches B, sub-main branches, side branches and the like of the tree T and removal of dead branches are performed. At this time, it is desirable to perform pruning by flash cutting (or a method close thereto) so that the surface of the tree is not largely uneven due to the knot-like branch marks.

  After the pruning, the surface of the tree is washed with a high-pressure washing machine or a brush to remove deposits such as moss. Thereafter, in order to prevent infection of the disease, a resin coating material is applied to the main trunk or main branch of the tree. Further, a disinfectant / insecticide is sprayed on the cleaned surface of the tree T with a sprayer to take measures against diseases and insect damage.

  Then, the strip-shaped breathable sheet 1 is tightly wound around the trunk S and the main branch B of the tree T that has been pruned, and the end of the breathable sheet 1 is further attached with the adhesive tape 2. Secure firmly. At this time, the front end side of the main branch S that does not need to suppress sprouting is in an exposed state without being covered with the breathable sheet 1.

  Finally, it is checked whether there is a gap between the wound breathable sheets 1. If there is a gap, the gap is closed with the adhesive tape 2 to complete the construction. Thereby, the sprout of the sprout from the part coat | covered with the air permeable sheet 1 can be suppressed, and also the external appearance of the tree T can be decorated with the air permeable sheet 1 wound utilizing the silhouette of the tree T. Further, if the breathable sheet 1 is wound up to the base of the twig at the tip as in this embodiment, the generation of thick branches can be suppressed, so that the effect of reducing the tree T can also be obtained.

  Further, in this example, the use of the green air-permeable sheet 1 having a glossiness of 30% or more at a measurement angle of 60 ° on the surface of the air-permeable sheet 1 provided an insect-repellent effect that makes it difficult for aphids to come close to the surface ( (Sustained effect after half a year has also been verified). In addition, in order to obtain an insect-repellent effect, use a breathable sheet 1 whose surface color is Munsell value close to white with a brightness of 7.0 or more, or use a breathable sheet 1 whose surface color includes gloss such as silver or gold. Also good.

“Example 2”
A second embodiment of the present invention will be described below. In Example 2, a fabric having a two-layer structure in which a breathable sheet 1 was laminated with a polypropylene woven fabric and a polyester nonwoven fabric was used. The physical properties of the breathable sheet 1 are as follows: mass per unit area is 160g / m ² , thickness is 1.1mm, tensile strength is 800N / 5cm in the vertical direction, 500N / 5cm in the horizontal direction, light shielding rate is 99.5%, water permeability Is 2.8 × 10 ⁻² cm / sec or more. And even when the said air permeable sheet 1 of a present Example was wound around a tree, the effect which suppresses the sprout of a sprout was acquired.

“Example 3”
Example 3 of the present invention will be described below. In Example 3, a fabric having a three-layer structure in which a polypropylene woven fabric was sandwiched between a breathable sheet 1 and a polyester nonwoven fabric was used. The physical properties of the breathable sheet 1 are as follows: mass per unit area: 270 g / m ² , thickness: 1.2 mm, tensile strength: 600 N / 5 cm in the vertical direction, 400 N / 5 cm in the horizontal direction, 99.5% light shielding rate, water permeability Is 2.8 × 10 ⁻² cm / sec or more. And even when the said air permeable sheet 1 of a present Example was wound around a tree, the effect which suppresses the sprout of a sprout was acquired.

Example 4
Embodiment 4 of the present invention will be described below. In Example 4, a fabric made of a polylactic acid long fiber nonwoven fabric was used for the breathable sheet 1. The physical properties of the breathable sheet 1 are as follows: mass per unit area is 100g / m ² , thickness is 0.4mm, tensile strength is 160N / 5cm in the vertical direction, 70N / 5cm in the horizontal direction, light shielding rate is 99.5%, water permeability Is 2.8 × 10 ⁻² cm / sec or more. And even when the said air permeable sheet 1 of a present Example was wound around a tree, the effect which suppresses the sprout of a sprout was acquired.

The present invention is generally configured as described above. However, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the claims. For example, Regarding the physical properties of the breathable sheet 1, the light shielding rate is 95% or more (preferably 99% or more), the tensile strength is 100N / 5cm or more in the longitudinal direction, 50N / 5cm or more in the transverse direction, and the water permeability is 1.0 × 10 ^-4 cm / It suffices to have sec or more and weather resistance of 70% or more, and the degree of stretchability can be freely adjusted.

  Moreover, regarding the structure of the fabric used for the air-permeable sheet 1, plain weave, twill weave, satin weave, and the like can be adopted, but it is preferable to adopt satin weave having a high structure density in terms of light shielding properties. As for the multi-woven structure, it is also possible to adopt a fabric having a triple woven structure or higher which has a light shielding property and tensile strength higher than that of the double woven structure.

  In addition, as a material for the fabric of the air-permeable sheet 1, not only polyester but also other synthetic fibers such as polyamide and polypropylene can be adopted, and the thickness of the yarn is a single yarn fineness of 0.5 to 4 dtex. A multifilament of 77 to 330 dtex is preferable. Further, as the functional material impregnated into the air-permeable sheet 1, an antifungal agent or the like can be employed.

  Furthermore, the means for fixing the end of the breathable sheet 1 wound around the tree T is not necessarily fixed by sticking the adhesive tape 2, for example, it is fixed by a hook-and-loop fastener, a fastening pin, an adhesive or the like. You can also

  Further, when a single tree T is covered with the breathable sheet 1, it is easy to check the health condition after the construction by dividing the tree T into a plurality of breathable sheets 1, 1,. Further, even when insects or the like adhere to the breathable sheet 1, only the part needs to be removed and replaced, so that the replacement cost can be reduced.

  On the other hand, regarding the method of winding the breathable sheet 1 without any gap, a method of winding a palm rope (which may be made of polyethylene or polypropylene) from the breathable sheet 1 around the main trunk or the like at intervals of 20 to 30 cm is adopted. It is also possible to apply an adhesive to the back surface of the breathable sheet 1 and stick the overlapped portion of the wound breathable sheet 1, both of which belong to the technical scope of the present invention.

  In recent years, the maintenance cost of trees planted in street trees, parks, gardens, orchards has become a major burden on local governments and garden owners. Recently, the dense atmosphere of mossy trees reminiscent of ancient Japanese wabi and rust has become difficult for young people to accept, and the demand for landscaping trees has decreased.

  Under such circumstances, the method of suppressing the sprouting of the tree of the present invention can not only greatly reduce the pruning cost required for the maintenance of the tree, but also the hygienic and familiarity of the appearance of the tree that is easily accepted by young people, And since it is a useful technique that can be decorated in a unique atmosphere, its industrial utility value is very high.

1 Breathable sheet
11 Black thread 2 Adhesive tape T Tree S Main trunk B Main branch

Claims (9)

A method for suppressing sprouting of a tree that suppresses the emergence of new shoots from the side or cut of the main trunk (S) or main branch (B) of the tree (T),
For the main trunk (S) and main branch (B) of the tree (T), the light shielding rate is 95% or more, the tensile strength is 100N / 5cm or more in the longitudinal direction, 50N / 5cm or more in the transverse direction, and the water permeability is 1.0 × 10. ^A method for suppressing sprouting of a tree, characterized by covering a surface of a breathable sheet (1) made of a fabric having a weather resistance of 70% or more and ^-4 cm / sec.   The method according to claim 1, wherein a fabric having a multi-woven structure is used for the breathable sheet (1).   When wrapping the breathable sheet (1) around the required part of the tree (T), the surface of the tree (T) is washed, and further, a disinfectant and insecticide are sprayed on the cleaned tree (T) surface. The method for suppressing sprouting of trees according to claim 1 or 2.   The resin coating material is applied to the cut end of the main trunk (S) or main branch (B) of the tree (T) when the breathable sheet is wound around the required part of the tree (T). A method for suppressing sprouting of a tree according to any one of the above.   The tree according to any one of claims 1 to 4, wherein an end of the breathable sheet (1) wound around the tree (T) is fixed by a weather-resistant adhesive tape (2). Sprouting suppression method.   The method according to any one of claims 1 to 5, wherein the breathable sheet (1) has a tensile strength of 500 N / 5 cm or more in the longitudinal direction and 300 N / 5 cm or more in the transverse direction.   The method according to claim 6, wherein the breathable sheet (1) has a tensile strength of 1500N / 5cm or more in the longitudinal direction and 1000N / 5cm or more in the transverse direction.   Breathable sheet (1) The surface gloss is 30% or more at a measurement angle of 60 °, the surface color is a bright color with a Munsell value of 7.0 or more, or the surface color is silver or gold, etc. The method for suppressing the sprouting of trees according to any one of claims 1 to 7, wherein any condition of whether a color having metallic luster is included is satisfied. A sprouting sheet for a tree that is wound around a main trunk (S) or main branch (B) of a tree (T) in a tensioned state and used to suppress the emergence of new shoots from the side or cut surface of the covered part. ,
It consists of a fabric with a light shielding rate of 95% or more, a tensile strength of 100N / 5cm or more in the longitudinal direction, 50N / 5cm or more in the transverse direction, a water permeability of 1.0 × 10 ^-4 cm / sec or more, and a weather resistance of 70% or more. A sprouting sheet for trees characterized by that.