JP2011229467A - Method of killing underground stem of bamboo, and implement for killing underground stem - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of killing underground stems of bamboos and an implement for killing underground stems for preventing growth of bamboo shoots and inhibiting unnecessary proliferation of bamboos.SOLUTION: Through holes 4 are successively formed on septal walls 42 at culm joints 41 of a stub 40 by hammering a skewer-shaped puncture member 2 having a grip 22 at the distal end into the center of the upper end of the bamboo stub 40 exposed on the ground surface G by a hammer 3, and the puncture member 2 is drawn out of the stub 40 by holding the grip 22 by hand. Then, a solution for killing the underground stems 43 is injected into an upper end opening 40a of the bamboo stub 40 to reach the bottom 44 of the bamboo stub 40 through the through holes 4.

Description

  The present invention relates to a method for killing bamboo rhizomes and a tool for killing rhizomes.

Conventionally, in order to prevent overgrowth of bamboo forest, a method of cutting and treating unnecessary bamboo has been employed.
Then, the applicant of this invention has proposed the felling machine which can cut | disconnect bamboo in the position close | similar to the ground (refer patent document 1).

JP 2009-171947 A

  However, bamboo is a plant that grows like a bamboo shoot (筍) through the underground stem that crawls under the ground and grows annually, and in the traditional way of cutting bamboo on the ground, the growth of the underground stem Because of this, it was not possible to suppress the occurrence of bamboo shoots in the following year.

  Therefore, an object of the present invention is to provide a method for killing a rhizome of bamboo and a work tool for killing a rhizome, which prevents the occurrence of bamboo shoots (pupils) and suppresses the growth of unnecessary bamboo.

  In the method of killing bamboo rhizomes according to the present invention, the upper end of the bamboo stump exposed on the ground is struck with a scissor-shaped perforated member having a grip portion at the upper end and driven into it. A through-hole part is formed in the partition part one after another, the grip part is manually grasped, the punching member is pulled out from the stump, and a liquid agent that causes the rhizome to die is injected into the upper end opening of the stump, and the through-hole It is a method of reaching the bottom of the stump through the part.

Moreover, after inject | pouring the said liquid agent, it is the method of covering the said through-hole part by covering with the closure member for waterproofing on the said stump.
Further, the perforating member is driven by the scissors to form a through hole portion having a polygonal cross section or a star shape in the partition wall, and the perforating member is twisted by the hand to enlarge the through hole portion into a circular shape. It is a method of pulling out.
Moreover, the said liquid agent is the method which is sodium chloride aqueous solution.

  Further, the rhizome killing tool according to the present invention includes a skewer-shaped punching member that pierces a stump after cutting bamboo and forms a through-hole portion in a partition wall portion of the bonito, and strikes the punching member to A skewer body portion having a length dimension such that the perforated member reaches the lower portion of the stump, and a grip portion fixed to the base end portion of the skewer body portion. .

Further, the skewer body portion of the perforated member is formed in a polygonal cross section or a star shape.
The scissors are formed with an insertion hole that can accommodate the perforating member from the head part to the grip handle part.

  According to the method for killing bamboo rhizomes of the present invention, the rhizome of bamboo stumps can be reliably killed and growth can be inhibited.

  Moreover, according to the rhizome killing tool of the present invention, the liquid agent can reach the lower part of the cut bamboo stump, and the rhizome can be surely killed to prevent growth.

It is the cross-sectional side view which showed one Embodiment of the rhizome killing method of the bamboo of this invention. It is the cross-sectional side view which showed the rhizome killing method of bamboo. It is the cross-sectional side view which showed the rhizome killing method of bamboo. It is the cross-sectional side view which showed the rhizome killing method of bamboo. It is the perspective view which showed one Embodiment of the rhizome killing tool of this invention. It is principal part sectional drawing which showed an example of the piercing member. It is principal part sectional drawing which showed the other example of the piercing member. It is a simplified plan view for explanation showing a growth suppression zone.

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
First, the rhizome killing tool of the present invention will be described.
As shown in FIGS. 1, 2, and 5, the rhizome-killing tool 1 has a skewer-like shape that pierces the stump 40 after cutting the bamboo and forms the through-hole portion 4 in the partition wall portion 42 of the knot 41. A piercing member 2 and a gutter 3 for hitting the piercing member 2 and driving it into the stump 40 are provided.
The piercing member 2 includes a skewer body 20 having a thin bar shape with a sharpened tip 21 and a length L that reaches the lower portion 44 of the stump 40. The skewer main body 20 has a head 20a for receiving the hammer 3 at the base end 23, and is a round bar (column) having a thickness that is easily gripped by a human hand H near the head 20a. Thus, both end portions 22a and 22b protrude in the left-right direction, and the skewer main body portion 20 and the grip portion 22 forming a cross are fixed.
The hammer 3 is a hammer having a metal head portion 31 and covers the handle portion 32 with a synthetic resin member. An insertion hole 30 is formed in the flange 3 from the head portion 31 to the grip handle portion 32. The insertion hole 30 is an elongated cavity that opens at the center of the upper end of the head portion 31 and can be accommodated by inserting the tip portion 21 to the grip portion 22 of the piercing member 2.

  As shown in FIG. 6, the piercing member 2 has the skewer main body portion 20 formed in a regular hexagonal shape in cross section. The skewer main body 20 has a plurality of edges 24 on the outer peripheral surface. The skewer main body 20 may be appropriately designed and formed in a square shape in cross-section if the circumscribed circle is a substantially true circle and the cross-sectional shape is a polygonal shape having a plurality of edges 24. Alternatively, it may be formed in a star shape (see FIG. 7) having a sharp pointed edge 24.

Next, the bamboo rhizome killing method of the present invention (the method of using the above-mentioned rhizome killing tool) will be described.
As shown in FIG. 1, a skewer-like perforated member 2 having a grip portion 22 at the upper end is struck by a hammer 3 into the center of the upper end of a bamboo stump 40 exposed on the ground G. The through-hole portions 4 are formed one after another in the partition wall portion 42. At this time, the piercing member 2 driven by the flange 3 forms a regular hexagonal (star-shaped) through-hole portion 4 in the partition wall portion 42. The piercing member 2 breaks through the partition wall portion 42 at the sharply sharpened tip portion 21 and reaches the lower portion 44 of the stump 40 without causing cracks in the ridges 41. As the stub 40 becomes deeper from the ground G, the gap between the ridges 41 gradually becomes narrower, and a large force is required to form the through hole 4 in the partition wall 42, but the head 20 a is hit with the ridge 3. Then, the piercing member 2 is driven in until the lower part 44 is reliably reached.
As shown in FIG. 2, the grip portion 22 is grasped with the hand H, the piercing member 2 is pulled out of the stump 40, and the upper end opening 40 a to the lower portion 44 of the stump 40 are communicated. At this time, the piercing member 2 is twisted by the hand H and twisted around the axis N ₁ , and the through hole 4 is enlarged circularly by the edges 24 of the skewer body 20. The through-hole part 4 is formed in the circumscribed circle shape of the skewer main-body part 20 as shown with a dashed-two dotted line in FIG.6 and FIG.7.
The piercing member 2 is pinched by the partition wall portion 42 (through hole portion 4) when driven by the scissors 3 and is difficult to pull out. By expanding the through hole portion 4 in a circular shape, the skewer main body portion 20 and the partition wall The contact area with the portion 42 is reduced, and the drawing becomes easy. Moreover, since the piercing member 2 protrudes both end portions 22a and 22b of the grip portion 22 in the left-right direction, it can be twisted using the lever principle and the through-hole portion 4 can be easily enlarged.

Next, as shown in FIG. 3, the liquid S is injected into the upper end opening 40 a of the stump 40. As the solution S, it is desirable to use a sodium chloride aqueous solution (high concentration) that is nontoxic and does not contaminate the soil. The liquid agent S reaches the lower portion 44 of the stump 40 through the through-hole portion 4. The sodium chloride aqueous solution is preferably a high-concentration solution in which the concentration is increased to a saturated state or close to solubility, and it is also preferable to prepare a high-concentration sodium chloride aqueous solution by heating in advance.
As shown in FIG. 4, after injecting the liquid S, it is preferable to cover the through-hole portion 4 by covering the stump 40 with a waterproof plug member 5. The closing member 5 is made of rubber, synthetic resin, or the like, prevents rainwater from entering the upper end opening 40a of the stump 40 and dilutes the liquid agent S, and suppresses evaporation of the solution of the liquid agent S.
The liquid agent S stays in the stump 40, and is then sucked up from the lower portion 44 by the transpiration action of bamboo to cause the underground stem 43 to die.

As shown in FIG. 8, the rhizome killing method of the present invention is preferably performed for each growth suppression zone 6 having a radius R of 3 m to 5 m. The liquid agent S causes the rhizomes 43 to die over a range where the radius R is 3 m to 5 m with the stump 40 as the center, and the surrounding bamboo is withered. By appropriately performing processing on the stubs 40 of the plurality of growth suppression zones 6..., It is possible to effectively suppress the growth of a wider range of bamboo forests.
Note that the present invention is not limited to the above-described embodiment, and the design can be changed without departing from the gist of the present invention.

  As described above, according to the bamboo rhizome killing method of the present invention, the skewer-like perforated member 2 having the grip portion 22 at the upper end is provided at the upper center of the bamboo stump 40 exposed on the ground G. The through holes 4 are formed one after another in the partition wall 42 of the knot 41 of the stub 40, and the grip 22 is gripped by the hand H and the perforated member 2 is pulled out from the stub 40. Since the liquid S that causes the rhizome 43 to die is injected into the portion 40a and reaches the lower portion 44 of the stump 40 through the through-hole portion 4, the rhizome 43 of the bamboo stump 40 can be surely dead and growth can be prevented. . That is, it is possible to suppress the occurrence of bamboo shoots (cocoons) in the following year and save the labor of cutting bamboo every year.

  In addition, after injecting the liquid agent S, the waterproof plug member 5 is put on the stump 40 so as to close the through-hole portion 4, so that rainwater enters from the upper end opening 40a of the stump 40 and the liquid agent S becomes thin. In addition, the evaporation of the solution S can be suppressed, and the growth of the rhizome 43 can be more reliably prevented.

  Further, the perforation member 2 is driven by the scissors 3 to form a through hole portion 4 having a polygonal cross section or a star shape in the partition wall portion 42, and the perforation member 2 is twisted by the hand H to enlarge the through hole portion 4 in a circular shape. Therefore, it can be easily pulled out with a small force by a human hand H.

  Further, since the solution S is a (high concentration) sodium chloride aqueous solution, it is harmless to the human body, does not cause chemical damage, and is safe without polluting the environment. Moreover, it can be easily prepared at low cost.

  In addition, according to the rhizome killing tool of the present invention, the skewer-like punching member 2 that pierces the stump 40 after cutting the bamboo and forms the through hole portion 4 in the partition wall portion 42 of the bonito 41, and the punching member A skewer main body 20 having a length L so that the perforating member 2 reaches the lower portion 44 of the stump 40, and a skewer main body portion. Since it has the grip part 22 fixed to the base end part 23 of 20, the liquid agent S can reach the lower part 44 of the stump 40, and the rhizome 43 can be surely killed to prevent growth.

  Further, since the skewer main body portion 20 of the piercing member 2 is formed in a polygonal cross section or a star shape in cross section, it can be easily pulled out with a small force by a human hand H.

  Moreover, since the eaves 3 are formed with the insertion hole 30 capable of accommodating the piercing member 2 from the head portion 31 to the grip handle portion 32, the piercing member 2 can be accommodated in the eave 3 and carried around, so that the work efficiency is improved. Does not decrease.

2 Punching member 3 槌 4 Through-hole portion 5 Closing member 20 Skewer body portion 21 Tip portion 22 Grip portion 23 Base end portion 30 Insertion hole portion 31 Head portion 32 Grip handle portion 40 Stump 40 a Upper end opening portion 41 Knot portion 42 Partition portion 43 Rhizome 44 Lower G Ground H Hand S Liquid L Length

Claims (7)

At the center of the upper end of the bamboo stump (40) exposed on the ground (G), a skewer-shaped perforated member (2) having a grip portion (22) at the upper end is struck with a scissors (3) and driven into the above stump ( 40) The through holes (4) are formed one after another in the partition wall (42) of the knot (41), the grip (22) is gripped by hand (H), and the perforated member (2) is Pull out from the stump (40),
The liquid agent (S) for dying the rhizome (43) is injected into the upper end opening (40a) of the stump (40) and allowed to reach the lower part (44) of the stump (40) through the through hole (4). A method for killing the rhizome of bamboo.   The method for killing bamboo rhizomes of bamboo according to claim 1, wherein after the liquid (S) is injected, the through hole (4) is closed by covering the stump (40) with a waterproof plug member (5). .   The punching member (2) is driven by the scissors (3) to form a through-hole part (4) having a polygonal cross section or a star shape in the partition wall part (42), and the punching member (4) is formed by the hand (H). The method for killing bamboo rhizomes according to claim 1 or 2, wherein 2) is twisted and the through hole (4) is enlarged in a circular shape and pulled out.   The method for killing rhizomes of bamboo according to claim 1, 2 or 3, wherein the solution (S) is an aqueous sodium chloride solution. A skewer-shaped punching member (2) that pierces the stump (40) after cutting the bamboo to form a through hole (4) in the partition wall (42) of the bonito (41), and the punching member (2) And a heel (3) for driving into the stump (40)
A skewer body (20) having a length (L) such that the perforated member (2) reaches the tip (21) to the lower part (44) of the stump (40), and the skewer body (20 And a grip portion (22) fixed to the base end portion (23) of the rhizomes.   6. The rhizome-killing tool according to claim 5, wherein the skewer body (20) of the piercing member (2) has a polygonal cross section or a star shape. 7. The rhizome withered as claimed in claim 5 or 6, wherein the ridge (3) is formed with an insertion hole (30) capable of accommodating the piercing member (2) from the head portion (31) to the grip handle portion (32). Killing tool.

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