JP2002293709A - Plant blight controlling material and method for using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plant blight controlling material using a material which has been mostly neglected for effective use in place of using agrochemicals, and provide a plant blight controlling method by using the material. SOLUTION: The plant blight controlling material contains soy sauce oil as an active component. The plant blight controlling method comprises spraying of the material to the plant or soil. The blight controlling material contains the soy sauce oil in an amount of 0.01-100 vol.% and may further contain a surfactant and other substances. The blight of plant caused by mold or bacteria can be controlled by the controlling material and method.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for controlling plant diseases using soy sauce, and more particularly to a plant disease control material comprising soy sauce as an active ingredient and a plant disease control method using the material. About the method.

[0002]

2. Description of the Related Art Conventionally, control of plant diseases has been carried out mainly by using pesticides using chemical substances. Spraying pesticides involves dangers such as poisoning, and when spraying the same kind of pesticide continuously, the problem of emergence of drug-resistant bacteria arises.
There was also a need to rotate the pesticides used. As described above, when chemical pesticides are used, environmental regulations are strongly regulated and their effects on the human body must be sufficiently considered. On the other hand, when producing soy sauce, soy sauce is by-produced, but at present, the effective use of soy sauce is not sufficiently carried out, and most of the soy sauce is only discarded. Also,
As a new trial, antibacterial properties of oxides of soy sauce have been studied (Jokyo, Vol. 92, No. 10, 719-
724 (1997)), but has not yet been put to practical use. There, they are only examining common bacteria such as Escherichia coli and cannot be applied for the purpose of controlling plant diseases, and of course, have not been applied to other fields.

[0003]

The problem to be solved by the present invention is to achieve safe and secure plant cultivation and agricultural production by using plant pesticides without using chemical pesticides. And means for effectively utilizing resources.

[0004]

Means for Solving the Problems As a result of intensive studies aimed at solving the above-mentioned problems, the present inventor has focused on soy sauce oil which has not yet been sufficiently and effectively used as waste. The present inventors have found that plant diseases can be safely controlled by using the present invention and completed the present invention. That is, according to the first aspect of the present invention, there is provided a plant disease control material comprising soy sauce as an active ingredient. The disease controlling material contains soy sauce oil in an amount of 0.01% by volume to 100% by volume, and may further contain a surfactant. As a surfactant, lecithin is preferred. According to the invention of claim 5, there is provided a method for controlling plant diseases, which comprises spraying a plant disease-controlling material containing soy sauce as an active ingredient on plants. And a method for controlling plant diseases, which comprises irrigating a soil with a plant disease controlling material containing soy sauce as an active ingredient. The disease controlling material contains soy sauce oil in an amount of 0.01% to 100%, and may further contain a surfactant, and the surfactant is preferably lecithin. These methods also control plant diseases caused by fungi or bacteria.

[0005]

The plant disease control material of the present invention contains soy sauce as an active ingredient as described above, and the component contained in the soy sauce has a bactericidal or antagonistic activity against the diseased bacteria, or has an effect on plants. It appears to confer disease resistance, immunity or resistance.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail. The soy sauce oil is an oily product that separates to the liquid surface when moromi made from soybeans, wheat, and salt is pressed after fermentation and ripening in the soy sauce production process. That is, in the soy sauce manufacturing process, during the soy sauce manufacturing process, the matured moromi is squeezed, the obtained raw soy sauce is put into a tank, the oil left on the upper surface is collected by a pump, put into an oil tank, and mixed soy sauce And the like, and are obtained by removing higher fatty acids or ethyl esters thereof. Soy sauce is thus obtained as a by-product and has been almost completely treated as waste, but the present invention makes it possible to use it effectively. The soy sauce used in the present invention may be derived from any soy sauce, and the type thereof is not particularly limited.

Soy sauce can be used as it is (ie, 100% by volume) as a liquid disease controlling agent.
It may be diluted, and can be dissolved or suspended in an aqueous solvent such as water or an oil solvent such as machine oil, dark oil, or xylene, but water is preferable in view of the convenience of handling. Further, a soy sauce oil may be contained in a carrier to form a solid disease control agent. In this case, it can be prepared at the time of use and dissolved or suspended in a solvent.

[0008] The amount of soy sauce oil contained in the plant disease control material of the present invention can be 0.01% by volume to 100% by volume, preferably 0.05% by volume to 10% by volume, particularly preferably Preferably it is 1% by volume to 10% by volume (v / v). If the content is less than 0.01% by volume, the effect of disease control will be low.

A surfactant can be further added to the plant disease controlling material of the present invention containing soy sauce as an active ingredient. By adding the surfactant, the solubility of soy sauce in the aqueous or oil-based solvent of soy sauce is further increased. Furthermore,
By adding the surfactant, the soy sauce becomes more compatible with the plant, so that the effect of the material on controlling plant diseases is further enhanced. At this time, the amount of the surfactant can be 0.01% by volume to 10% by volume in the plant disease control material, but is preferably 0.03% to 3% by volume, particularly preferably 0.05% by volume. 1% by volume. Although the type of the surfactant is not particularly limited, lecithin, lignin sulfonate, calcium caseinate, gelatin and the like are preferable.

[0010] It is preferable to add a spreading agent to the plant disease control material of the present invention containing soy sauce as an active ingredient. Known spreading agents can be used.
In addition, fertilizers, pesticides, plant growth regulators and the like can be added to the plant disease control material of the present invention containing soy sauce as an active ingredient. When these are added to the plant disease control material of the present invention, the effect of soy sauce oil and the synergistic effect of these effects can be expected to further promote growth and increase the yield. Furthermore, when an agricultural chemical is added, it has the effect of reducing the amount of the agricultural chemical.

By using the plant disease control material of the present invention, plant diseases can be effectively controlled. In this case, the above-mentioned disease controlling material in a liquid form is sprayed on the plant. The term “spraying” as used herein includes directly applying a disease control material (liquid) to a plant. Further, the above-mentioned disease controlling material may be irrigated. If the disease control material is in a solid form, it is dissolved or suspended in a solvent at the time of use. The supply frequency is effective once, as described in the following examples, and may be plural times. It can be appropriately selected depending on the degree of plant disease. Spraying may be performed on the whole plant strain, or may be performed only on a portion where a disease is observed. The time of spraying or irrigation may be before the occurrence of the disease or after the occurrence of the disease as described in the following Examples.

The plant diseases which can be controlled by using the plant disease control material of the present invention containing soy sauce as an active ingredient are plant diseases caused by filamentous fungi, bacteria and the like. And powdery mildew, downy mildew, downy mildew of solanaceous plants, plagues of solanaceous plants,
Ring spot disease, katmon disease, black scab disease, brown malhosi disease, kinkaku disease, susan disease, sukabi disease rice root disease, white leaf blight, plague, leaf blight, cruciferous plants, powdery mildew, downy mildew, etc. Soft rot, tanso disease such as orchids, citrus family, kokuten disease such as rose family, asteraceae,
Examples include kokuhan disease and cappan disease of cucurbits.

[0013]

Hereinafter, the present invention will be described with reference to examples.
The embodiments are not to be construed as limiting the technical scope of the present invention.

Reference Example 1 In a soy sauce manufacturing process, raw soy sauce obtained by pressing aged moromi is put into a tank, and the oil left on the upper surface is collected by a pump, then put into an oil tank, and mixed. The soy sauce was removed to obtain soy sauce.

Example 1 Test for Control of Powdery Mildew on Cucumber (1) Cucumber varieties "four-leaf" were raised in a glass greenhouse using a 1 / 5000a Wagner pot to cause powdery mildew.
This was used as a sample for the spray test. To 1 part by volume of the soy sauce oil obtained as described above, a spreading agent (trade name “Mix Power” manufactured by Tomonoaglica Co., Ltd., component names: polyoxyethylene alkyl phenyl ether, polyoxyethylene alkyl ether) was added to 0.1 part by volume. Add 1 part by volume and add water to 99 parts
A volume part was added and stirred to prepare a plant disease controlling material.
This material was sprayed on the whole plant regardless of the presence or absence of powdery mildew symptoms. In the control group, a solution obtained by adding 0.1 part by volume of the same spreading agent to 100 parts by volume of ion-exchanged water was sprayed on the whole strain.

After the spraying treatment, the state of the leaf surface was observed after 6 days and 12 days, and the evaluation of the lesion was evaluated for 11 leaves from the 5th to 15th leaves at the same growth stage for each leaf. A score of 0 was assigned for "No spots", 1 for "small", 2 for "mild", 3 for "medium", 4 for "severe", and 5 for "burst", and the evaluation value was given. The integrated value of was regarded as a lesion.
Table 1 shows the results.

[0017]

[Table 1]

At 12 days after the spraying treatment, the number of lesions on the strain in the control plot increased and the powdery mildew spread, but the number of lesions on the test plot decreased. It was observed. From this result, it was found that the soy sauce applied to the test plot had a sufficient powdery mildew control effect. From the results, it was found that the effect of soy sauce which inhibits the spread of powdery mildew was maintained for a long period of time.

Example 2 Cucumber powdery mildew control test (2) 100 g of lecithin was dissolved in 1 liter of soy sauce obtained as described above. To 1 part by volume of this soy sauce, a spreading agent (trade name "Mix Power" manufactured by Tomonoaglica Co., Ltd., component names: polyoxyethylene alkylphenyl ether, polyoxyethylene alkyl ether) was added in an amount of 0.
After adding 1 part by volume, 98.9 parts by volume of water was added and stirred to prepare a plant disease controlling material. As a control, a solution was prepared by adding 0.1 part by volume of the same spreading agent as 99.9 parts by volume of ion-exchanged water to 1 part by volume of soy sauce in which 100 g of lecithin was dissolved.

A cucumber variety "four leaf" is raised in a glass greenhouse using a 1 / 5000a Wagner pot to cause powdery mildew, and the third to seventh leaves of the third to seventh leaves at the same growth stage are grown.
This material was sprayed on each leaf. Seven days after spraying, the evaluation of lesions on each of the five leaves that were sprayed was evaluated as “no lesions observed”, 0 for “small”, 2 for “mild”, 3 for “moderate”, and 3 for “moderate”. Six levels of evaluation were performed, with "severity" being 4 and "bursts" being 5, and the integrated value of the evaluation values was regarded as a lesion. Table 2 shows the results.

[0021]

[Table 2]

From the results, it was found that 1000
For 1% soy sauce oil containing ppm lecithin, the integrated value of the excellent udo evaluation values was regarded as the lesion level. Table 3 shows the test results.

From the results, it was shown that even when soy sauce oil was added with a liquid compound fertilizer commonly used for foliar application and sprayed, it had an effect of controlling powdery mildew. Also,
Test plot 1 without lecithin and Test plot 2 with lecithin
In comparison with the above, it was found that the disease control effect was further enhanced by containing the surfactant lecithin. In addition, comparing the test plot 1 containing no liquid composite fertilizer with the test plot 2 containing the liquid composite fertilizer, the disease control effect was somewhat increased when the liquid mixed fertilizer was included, and both the liquid composite fertilizer and the surfactant It was found that both effects greatly enhanced the disease control effect.

[0027]

According to the first to eleventh aspects of the present invention, a plant disease control material comprising soy sauce oil as an active ingredient or a plant disease control using such a disease control material is used. Even if pesticides are not used, the disease can be safely and safely controlled by soy sauce oil, and waste of resources can be eliminated by effectively using soy sauce which has not been effectively used until now.
According to the third, fourth, eighth, and ninth aspects of the present invention, a disease control material having a higher disease control effect or a method for controlling a disease can be obtained by including a surfactant substance.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masami Yoneyama 5-511 Namiki, Tsuchiura-shi, Ibaraki Prefecture Chikarin Katakura Co., Ltd. Tsukuba Research Institute (72) Inventor Masatoshi Ichikawa 3-chome Doai-Minami, Hasaki-cho, Kashima-gun, Ibaraki Prefecture 14-7 F term (reference) 4H011 AA01 AA03 BA05 BB21 BB22 BC17 BC19 DA13 DD03 DD04 DF05 DH03

Claims (10)

[Claims] 1. A plant disease control material comprising soy sauce as an active ingredient. 2. The plant disease control material according to claim 1, comprising soy sauce oil in an amount of 0.01% to 100% by volume. 3. The plant disease control material according to claim 1, further comprising a surfactant. 4. The plant disease control material according to claim 3, wherein the surfactant is lecithin. 5. A method for controlling plant diseases, comprising spraying a plant disease-controlling material containing soy sauce oil as an active ingredient onto the plants. 6. A method for controlling plant diseases, comprising irrigating a soil with a plant disease controlling material containing soy sauce as an active ingredient. 7. The method according to claim 5, wherein a disease control material containing 0.01% to 100% by volume of soy sauce is used. 8. The method according to claim 5, wherein a disease control material further containing a surfactant is used. 9. The method according to claim 8, wherein said surfactant is lecithin. 10. The method for controlling plant diseases according to any one of claims 5 to 10, wherein the method controls plant diseases caused by filamentous fungi or bacteria.