JPH0551302A - Method for expelling week in golf course with acetic acids - Google Patents

Abstract

PURPOSE:To simply and effectively expel weeds growing in lawn of golf course by common application operation without using an agricultural chemical such as a herbicide harmful to environments and human body and without depending upon weeding with hand. CONSTITUTION:An acetic acid or the like is brought into contact with weeds growing in a golf course, such as curried yellow wood sorrel, Hydrocotyle sibthorpioides Lam. or Erigeron philadelphicus. L. to expel the weeds. Since sufficiently herbicidal effects are obtained by the common application operation same as the herbicide aplication without using a herbicide by this method, the method neither has bad effects on environmental pollution and workers nor requires attachment of protecting mask, gloves, clothes, etc., and application operation can be lightened. Since the acetic acid has no toxicity, the amount of acetic acid applied can be freely controlled according to the state of growing of weed. Acetic acid treated as a chemical agent is not necessarily required as the acetic acid, even readily and inexpensively obtainable edible vinegar provides sufficiently herbicidal effects.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the control of weeds generated on the lawn of a golf course by spraying acetic acid.

[0002]

2. Description of the Related Art Heretofore, the methods for exterminating weeds on golf courses have been mainly by spraying herbicides and manual weeding. However, in recent years, environmental pollution due to spraying pesticides on golf courses and the effects on the human body have become a problem, and weeding work has been performed with reduced or no pesticides.

[0003]

However, the player's desire to play golf on the beautiful lawn remains unchanged. Therefore, if the weeding work is to be performed without using the herbicide, the weeding must be done by hand, so that the burden on the worker is further increased.

The present invention has been made in consideration of the above circumstances, does not use pesticides, is not harmful to the environment and the human body like pesticides, is easy to handle, and is applied as before. The purpose is to obtain the herbicidal effect by work.

[0005]

Means for Solving the Problems As a result of studies to achieve the above object, the present inventors have found that the object can be achieved by the following results of the implementation, and have arrived at the present invention.

[0006]

Example 1 An example of the present invention for controlling weeds growing on grass is described below. Note that the target weeds are weed communities mainly composed of grass species that frequently appear in fairways and roughs of golf courses, such as Oxalis, Cedmegussa, and Halzion.

Table 1 shows the dilution ratio of acetic acid when the present invention was carried out, and was set so as to be applied to the surface spraying on the grass.

[0008]

[Table 1] Treatment area 90% Acetic acid Diluted water volume No. ml / m ² ml / m ² 1 0.0 100.0 2 1.0 〃 3 2.0 〃 4 4.0 〃

[0009]

[Table 2] After treatment day number treated plot No. 1 4 6 11 16 21 27 1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 2.3 4.0 3.7 2.3 1.3 0.0 0.0 3 7.7 9.0 8.0 4.7 2.7 0.3 0.0 4 9.0 9.0 8.7 6.7 3.7 1.7 0.3 Note): The number in the table is an index showing the degree of leaf withering, and is evaluated in 11 levels from 0 to 10, and the larger the number, the greater the degree of leaf withering.

Table 2 shows changes in the degree of leaf death of weeds for each treatment group. Treatment groups No. 3 and No. 4
The leaves showed signs of wilting within a few hours after spraying, and on the next day, the leaves had a significantly high degree of wilting, and the leaves were almost dead until about 1 week later, when they started to regenerate gradually. Further, in treated area No. 2, weeds did not die as much as in treated areas No. 3 and No. 4, and although the number of days until complete recovery was short, a similar tendency was shown.

Thus, even without using a herbicide, weeds can be sufficiently killed by using 2.0 ml of 90% acetic acid per square meter and 4.0 ml of acetic acid diluted to 4.0 ml.

[0012]

[Example 2] Next, an example of the extermination of the present invention using acetic acid and edible vinegar against one grass clam, which is one of the highly damaging weeds on the golf course, is shown below. Table 3
Is the dilution ratio of the example of the present invention, and 90% acetic acid and edible vinegar were set so that the component amounts were equal.

[0013]

[Table 3] Treatment area 90% acetic acid Edible vinegar Diluted water amount Ingredient amount No. ml ml ml / m ² g / m ² 1 0.0 0.0 100.0 0.0 2 1.0 ─ 〃 0.9 3 2.0 ─ 〃 1.8 4 4.0 ─ 〃 3.6 5 ─ 20.0 〃 0.9 6 ─ 40.0 〃 1.8 7 ─ 80.0 〃 3.6

[0014]

[Table 4]  Days after processing  Treatment area No. 0 1 6 11 18 23 28 1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 1.3 3.3 2.3 1.3 0.3 0.0 0.0 3 5.3 5.3 6.7 6.3 4.7 3.3 1.0 0.0 4 8.0 9.0 8.7 8.0 7.7 5.0 1.7 5 2.0 3.0 2.7 1.7 0.7 0.0 0.0 6 4.3 5.3 3.3 2.7 1.3 0.3 0.0 7 7.3 8.3 8.0 7.0 6.3 4.7 1.0   Note): The numbers in the table are indicators of the degree of leaf withering, starting from 0.
11-level evaluation from 10 to 10, with larger numbers withering leaves
It is assumed that the degree of

Table 4 shows the change in leaf withering degree of Pleurotus cornucopiae according to each treatment. The change in leaf withering degree showed almost the same tendency as in Example 1, and the treatment groups No. 3, 4 ，
Nos. 6 and 7 showed signs of leaf wilting within a few hours after spraying, and on the next day, already high leaf wilting degree was observed.
It was remarkable in 4 and 7. In addition, the treated plots Nos. 3 and 6 and the treated plots Nos. 4 and 7 showed almost the same degree of leaf withering.

As described above, according to the present invention, it has been confirmed that, if the amount of acetic acid components is the same, almost the same effect can be obtained by using edible vinegar.

[0017]

As described above, according to the present invention, when weeds are exterminated, it is possible to obtain a sufficient herbicidal effect in the same usual spraying operation as the spraying of herbicides without using a pesticide. Not only is there no environmental pollution or toxicity to workers, etc., but it is not necessary to wear protective masks, gloves, clothes, etc. at the time of spraying, which leads to a reduction in spraying work.

Further, since it is not toxic as described above, it is possible to freely control the amount of acetic acid components and the amount of sprinkling depending on the condition of weed overgrowth, and in some cases, herbicidal auxiliary agents such as spreading agents and penetrants. By adding
It is possible to obtain a herbicidal effect higher than the test result.

Further, the present invention is characterized in that edible vinegar, which can be easily and inexpensively used for foods, can obtain a sufficient herbicidal effect, even if acetic acid, which is treated as a chemical, is not used, as long as its component amounts are correct. is there.

Claims (1)

[Claims] 1. A method for exterminating a weed on a golf course, which comprises bringing acetic acid into contact with a weed generated on a lawn of a golf course.