JPS6265635A - Method for controlling insect of tree - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a method for exterminating pests, such as pine borers, which invade the inside of trees, destroy sap ducts and phloem tubes, and cause the trees to wither. .

[Conventional technology and its problems]

It is common for various trees that grow wild in the mountains or are cultivated in plantations to quickly wither and die due to pests, and this damage spreads.To exterminate these pests, it is necessary to spray chemicals or inject chemicals into the trees. There is no denying that it has some effect.

However, deworming methods using chemicals have many problems, such as chemical damage to humans and livestock, and high cost of extermination, and the scope of deworming is also limited.

[Purpose of the invention]

In order to solve the above problems, a variety of beetles called pine beetles, which are pests of pine trees, feed on the trunks of pine trees.
Focusing on the fact that the pine beetle feeds on the sap conduits or phloem tubes in pine trees, and that the Japanese cedar beetle, which is a pest of cedar, penetrates deep into the tree and creates cavities, we aimed to deworm it with electric shock. do.

[Structure of the invention]

In order to achieve the above object, the present invention provides an electric current of 20 to 40 milliamps and 800 milliamps between the upper and lower ends of the tree trunk.
This is a method of deworming trees by instantaneously passing a high voltage current of 1,500 to 1,500 volts.

[Effect]

When the above-mentioned high-voltage current is passed through a tree, the pests inside the tree are instantly killed by electric shock.

〔Example〕

The drawings show an embodiment of the tree deworming method according to the present invention, in which 1 is a tree and 2 is a device for applying electric shock to the tree.

The electric shock device 2 receives its power from a household power distribution line or a private generator, 3 is an electric wire from these power sources, 4 is a voltage converter interposed in this electric wire, and 5 is a voltage/current regulator. , 6 is a transformer.

The end of the electric wire 3a from the electric shock device 2 is stripped of its insulating jacket and left as a bare wire at the trunk 7 of the tree 1.
Tie it to the end.

The tree itself is grounded, so there is no need to ground it, but if necessary, you can do so by wrapping a bare wire around the base.

The current passed through the tree trunk is 20 to 40 milliamps, 80
A high voltage of 0 to 1,500 volts, preferably 25 milliamps, +000 volts or so.

A few microseconds is sufficient for passing the current.

〔effect〕

Pests that kill trees invade the trunk and breed, so apply 20 to 40 milliamps and 800 to 10 milliamps to the trunk.
By passing a high-voltage current of 500 volts, pests are instantly electrocuted and annihilated.

Also, such high voltage current i! It has the effect that even one sieve does not have any effect on the tree itself.

Furthermore, this Saito method has the effect that it is much easier to work with than conventional chemical spraying or injection.

[Brief explanation of the drawing]

The drawing shows the implementation of the tree gluing method according to the present invention! It is an explanatory diagram showing Mr. i. 1...tree, 7...executive, 2...
... Electric shock device, 3 ... Electric wire from power source, 4 ... Voltage converter, 5 ... Voltage and current regulator, 3a ... Device 2 Electric wire from.

Claims (1)

[Claims] A method for deworming trees, which comprises instantaneously passing a current of 20 to 40 milliamperes and 800 to 1,500 volts between the upper and lower ends of the tree trunk.