KR101740270B1 - A fast-acting natural insecticidal composition containing plant extract as an active component and manufacturing method of the same - Google Patents

Abstract

The present invention relates to a natural insecticidal composition comprising a plant extract as an active ingredient. More specifically, the present invention relates to a natural insecticidal composition comprising 20.5 to 68.9% by weight of an extract of ginseng, 2.0 to 8.0% by weight of nymph oil, 5.0 to 15.0% The present invention relates to a natural insecticidal composition comprising, by weight, a surfactant in an amount of 2.0 to 8.0% by weight, a surfactant in an amount of 0.1 to 0.5% by weight and water in an amount of 20.0 to 40.0% by weight, The present invention relates to a natural insecticidal composition comprising a plant extract harmless to human body as an active ingredient.
In addition, the present invention provides a method for preparing an oil-in-water emulsion, comprising: (S1) mixing and emulsifying a nematic oil and a surfactant; (S2) adding and stirring a ginseng extract to the mixture prepared in the step (S1) A step S4 of injecting xanthan gum into the mixture prepared in the step S3 and dispersing the mixed gantum into the mixture prepared in the step S3, And stirring the mixture (S5).
Accordingly, the natural insecticidal composition using the plant extract of the present invention can be used for pests that cause enormous damage to the farmhouse, has no weakness, and has a fast insecticidal effect.

Description

TECHNICAL FIELD The present invention relates to a natural insecticidal composition containing a plant extract as an active ingredient and a method for producing the insecticidal composition.

The present invention relates to a natural insecticidal composition comprising a plant extract as an active ingredient. More specifically, the present invention relates to a natural insecticidal composition comprising 20.5 to 68.9% by weight of an extract of ginseng, 2.0 to 8.0% by weight of nymph oil, 5.0 to 15.0% The present invention relates to a natural insecticidal composition comprising, by weight, a surfactant in an amount of 2.0 to 8.0% by weight, a surfactant in an amount of 0.1 to 0.5% by weight and water in an amount of 20.0 to 40.0% by weight, The present invention relates to a natural insecticidal composition comprising a plant extract harmless to human body as an active ingredient.

In the twentieth century, mankind has made efforts to control pests and diseases in order to increase the production of agricultural products, and thus many pesticides have started to be used in agriculture. However, the pesticide itself, which kills the insect pests, was not only insect pests, but also very toxic to crops and even the human body, so proper pesticide selection and effective spraying methods became a problem.

In the 1930s and 40s, insecticidal insecticides such as chrysanthemums and non-insecticides such as Paris greens, arsenic and lead were widely distributed. However, these insecticides are made of natural materials and are expensive, or have a large amount of toxic substances left in crops and soil, and the productivity of the soil has also been remarkably reduced.

Since the 1940s, new insecticides have been found that are less damaging to crops and the human body. During World War II, chemical insecticides have become more widely used throughout the world for the control of pests and diseases, and among the many chemical insecticides Widely used was the insecticide called Dichloro-diphenyl-trichloroethane (DDT), an organic chlorine agent.

DDT has also been used to relieve pests that hurt crops in advanced countries such as the US and farmers have been actively involved in the use of synthetic pesticides, such as DDT, to increase agricultural productivity while reducing the loss of crops caused by pests. Synthetic pesticides have become a common use not only for agriculture but also for killing pests in the gardens and in homes.

Recently, a chemical insecticide similar to DDT has been produced and used. The related art related to this is disclosed in Korean Patent Registration No. 10-1187704, which discloses that insecticidal insecticides containing two compounds selected from the chloronicotinyl insecticide system as active compounds Mixtures and uses of these mixtures for the remediation of animal pests.

Although chemical insecticides similar to those of the prior art have been used to quickly obtain the control effect, chemical insecticides are costly, pollute the soil and destroy the balance of the ecosystem. In addition, when the insecticide is continuously sprayed, There are many difficulties in getting up and controlling pests.

Korean Patent Registration No. 10-0834965 discloses a natural insecticide for replacing a chemical insecticide, and more particularly, to a natural insecticidal composition comprising a fish extract and a ginseng extract simultaneously, In order to obtain higher activity, the herbal medicine extracts such as spirulina, cinnabar, and human beings are additionally contained as needed, and thus they have excellent control effect against insects of various crops. Especially, for the insect pests such as mites, The present invention relates to a natural insecticidal composition that is not only excellent in controlling effect but also harmless to humans and animals.

The above-mentioned prior art is an environmentally friendly pesticide using a plant extract substituted for a chemical insecticide, which is harmless to the natural environment and the human body. However, since the insect pest control effect is slow, it is disadvantageous to periodically spray the pesticide in order to insect pests .

The prior art for a pest control agent that exhibits a quick pest control effect is disclosed in Korean Patent Laid-Open No. 10-2009-0105484, which relates to a pesticidal composition for pine needle bug larvae, more specifically, The present invention relates to a preparation for controlling pine needle larva larva largely comprising oxymatrine compound prepared from Phellinus linteus rosin and a pyrethrin compound prepared from a pest control method, a method for producing the same, and a method for controlling pine larval larval larvae using the same.

However, the above-mentioned prior art is limited to the control of the pine needle bug larvae, and thus there are limitations in effectively controlling various pests, and the pest control station, which exhibits a quick effect, is prohibited from being used in the current eco-friendly management law.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a method for controlling an insecticide of an agricultural and forestry insect by harmless to the natural environment and human body by using a ginseng extract, nymph oil,

Also, it provides natural insecticide composition for controlling the insect pests such as Bacchae moth, Tobacco spider moth, and cotton aphid, which cause enormous damages to the farmers in the process of planting using the gosam extract, nem oil, There is a purpose in this.

It is another object of the present invention to provide a method for producing a natural insecticidal composition containing a plant extract as an active ingredient.

The present invention relates to a composition comprising 20.5 to 68.9% by weight of a crude extract, 2.0 to 8.0% by weight of nematicide, 5.0 to 15.0% by weight of a crude extract, 2.0 to 8.0% by weight of a lipase extract, 2.0 to 8.0% by weight of a surfactant, And 20.0 to 40.0% by weight of water as an active ingredient.

In addition, the present invention provides a method for preparing an oil-in-water emulsion, comprising: (S1) mixing and emulsifying a nematic oil and a surfactant; (S2) adding and stirring a ginseng extract to the mixture prepared in the step (S1) A step S4 of injecting xanthan gum into the mixture prepared in the step S3 and dispersing the mixed gantum into the mixture prepared in the step S3, And stirring the mixture (S5).

As described above, the present invention has an effect on the control of agricultural and forestry insects harmless to the natural environment and the human body by using the extract of Gosam, Nimrofen, Radish Extract and Leaf Extract.

In addition, the present invention has the effect of controlling the insect pests such as bamboo mites, tobacco spider mites, and cotton aphids, which cause enormous damages to farmers in the process of cultivating plants by using the extracts of Gosam, Nimoo,

In addition, the present invention has an effect of providing a method for producing a natural insecticidal composition containing a plant extract as an active ingredient.

1 is a photograph showing a field test of a natural insecticidal composition according to an embodiment of the present invention.
2 is a photograph of the natural insecticide after 12 hours after spraying according to an embodiment of the present invention.
FIG. 3 is a photograph of the natural insecticide after 36 hours after spraying according to an embodiment of the present invention. FIG.
4 is a flowchart showing a method for producing a natural insecticidal composition containing a plant extract as an active ingredient according to an embodiment of the present invention.

In order to attain the above object, the present invention provides a method for producing a liposome according to the present invention, which comprises 20.5 ~ 68.9% by weight of the extract, 2.5 ~ 8.0% 0.1 to 0.5% by weight of xanthan gum, and 20.0 to 40.0% by weight of water, wherein the natural insecticidal composition contains a plant extract as an active ingredient.

Hereinafter, the present invention will be described in detail.

In the natural insecticidal composition containing the plant extract as an active ingredient, the extract of the extract is preferably 20.5 to 68.9% by weight, more preferably 33.6 to 55.8% by weight based on the total weight of the natural insecticidal composition. If the concentration of the insecticidal compound is less than 20.5% by weight, the insecticidal effect of the insecticide is lowered. If the insecticidal activity exceeds 68.9% by weight, the insecticidal activity of the insecticidal plant is inhibited, There is a problem indicating fatal toxicity.

Gosam is a perennial herb that grows in the legumes and grassy fields, plains, roadsides, sandy soil and sunny loamy soil. It is widely grown in Korea, Japan, China, and Siberia. The ginseng root has a total alkaloid content of 1.1% and contains components such as oxymatrine, martin, sophoranol, anagurine, methylcytidine, baptifoline, sapsocarpine and alomatrine, 13%. Dried roots of ginseng have been used for the treatment of dyspepsia, neuralgia, hepatitis, jaundice, hemorrhoids and the like because of its taste and ginseng efficacy. In the private sector, it is also used as an insecticide by pulverizing stems or leaves.

The nematic oil is preferably 2.0 to 8.0% by weight, more preferably 4.0 to 6.0% by weight based on the total weight of the natural insecticidal composition. When the nematic oil is less than 2.0 wt% based on the total weight of the natural insecticidal composition, there is a problem that the effect of controlling the insect pest is lowered. When the nematicide is more than 6.0 wt%, there arises a problem of inhibiting plant growth Due to its toxicity, excessive input of its ingredient content is restricted by the KFDA's pesticide residue standard.

Azadirachta indica originates from India, Nepal and Myanmar. It is an evergreen tree with a thickness of 2.5m and a height of 10 ~ 20m. It is widely distributed in South Asia, India, Africa, Central and South America. Flowers have white flowers with sweet fragrance and 5 petals. Fruits are olive-like, yellowish-green with a circular green color. It is from 3 to 5 years old that the fruit tree is born, and the most vigorous harvest is possible in the 10 year old tree.

In particular, azadirachtin oil was approved by the US Environmental Protection Agency (EPA) in 1985 as a pesticide, and in 2000, the United Nations designated it as a plant of the 21st century as an alternative to the problem of pest infestation on the planet.

It is preferable that the extract of L. rabbit is from 5.0 to 15.0% by weight, more preferably from 8.0 to 12.0% by weight, based on the total weight of the natural insecticidal composition. If the amount of the extract is less than 8.0% by weight based on the total weight of the natural insecticidal composition, the effect of controlling the effect of the insecticide is insufficient and the medicament should be periodically sprayed. If the extract is more than 12.0% by weight, But the problem of inhibiting the germination of the plant occurs.

The main component of Solanum nigrum extract is toxic to solanine. Solanine, solasonine and solamargine are contained in the whole herb, and the content of solasonine is 0.2% and that of solamargenine is 0.25% (weight ratio to dry herbal medicine). The glycosides contain solasodine. The alkaloid content is highest in fruit and 4.2% in immature fruit. Recent analysis of alkaloid glycosides suggests that solasonine, solamargine, solanine and free solasodine are not included. The whole herb contains saponin which is composed of genin such as diosrenine and ticogenine. In addition, it contains nicotine and a large amount of vitamin A and vitamin C as trace elements. The roots also contain alkaloids and saponins. In agriculture, it is used as an agent for enhancing the effectiveness of Coleoptera in farming units.

The leaf extract is preferably 2.0 to 8.0% by weight, more preferably 4.0 to 6.0% by weight based on the total weight of the natural insecticidal composition. If the content of the leaf extract is less than 4.0% by weight based on the total weight of the natural insecticidal composition, there is a problem in that it can not control the bamboo moth, mosquito larvae and cotton aphid simultaneously. If the leaf extract is more than 6.0% by weight, A problem that can not be solved occurs.

The branch is a mature fruit of Kochia scoparia Scharder, an annual herb of the chenopodiaceae, which contains tannins, flavonoids, coumarin, and saponins. The extract of the leaf extract is used to protect the upper hepatocyte from an experiment in which toxic hepatitis was caused by carbon tetrachloride It was confirmed that there is action, dementia action, glycogen accumulation action and antagonistic action. In addition, the leaf extract also has an insecticidal action against molds. In the present invention, insecticidal effect against insect pests of the present invention was found and used as a constituent component of the present invention.

The amount of the surfactant is preferably 2.0 to 8.0% by weight, more preferably 3.0 to 7.0% by weight based on the total weight of the natural insecticidal composition. If the amount of the surfactant is less than 2.0% by weight based on the total weight of the natural insecticidal composition, there is a problem that the emulsifying ability is poor. When the amount is more than 8.0% by weight, toxicity of the surfactant appears.

The surfactant is a substance capable of adsorbing on the interface of the mixed substance to reduce the free energy of the interface to facilitate the mixing of the substance. Specific examples thereof include castor oil, ethoxylated polyoxyethylene Decyl monoether (ethoxylated + Polyoxyethylene dodecyl monoether) may be used, but the present invention is not limited thereto.

The amount of xanthan gum is preferably 0.1 to 0.5% by weight, more preferably 0.2 to 0.4% by weight based on the total weight of the natural insecticidal composition. If the content of xanthan gum is less than 0.1% by weight based on the total weight of the natural insecticidal composition, there is a problem that the emulsifying ability is lowered. If the amount of xanthan gum is more than 0.5% by weight, the viscosity increases and the drug becomes sticky.

Xanthomonas Campestris is a natural thickener used to purify carbohydrates, which is obtained by fermentation of carbohydrates using pure Xanthomonas Campestris, a causative organism of cabbage. It is purified, dried and pulverized in isopropyl alcohol. Mannose and sodium, potassium and calcium salts of glucuronic acid, and the like. It is a pale yellow powder which is well soluble in water. The aqueous solution is neutral and does not dissolve in ethanol. Particularly, they are dispersed in cold water and dissolve in hot water. It has excellent heat resistance, and especially in the presence of glacial acetic acid, citric acid and the like, the viscosity is lowered even when heated. The viscosity of natural thickener is lowered when acidic or alkaline substances coexist. Zanthan gum does not decrease in viscosity due to pH and is stable even in the range of pH 2 ~ 13. Xanthan gum has a good viscosity and its viscosity is gradually increased according to the concentration, and it is used as a stabilizer, a thickener, a binder, an emulsifier, a high-setting agent, a foaming agent and the like.

Water is preferably 20.0 to 40.0% by weight, more preferably 25.0 to 35.0% by weight, based on the total weight of the natural insecticidal composition. If the water content is less than 20.0% by weight based on the total weight of the natural insecticidal composition, there is a problem that the concentration of the natural insecticide is increased so that damage to the insect pest benefiting agriculture and forestry occurs. If the water content exceeds 40.0% by weight, And the insecticidal effect is halved, so that it is necessary to spray the medicine periodically.

The method for producing a natural insecticidal composition according to the present invention comprises the steps of (S1) mixing and emulsifying nem oil and a surfactant, (S2) adding a ginseng extract to the mixture prepared in the step (S1) and stirring the mixture, (S4) mixing and dispersing xanthan gum in the mixture prepared in the step (S3), mixing the mixture obtained in the step (S4) into the mixture prepared in the step (S4) And mixing and stirring the mixture and water (S5).

Hereinafter, production examples of each component used in the present invention, production examples of natural insecticidal compositions and comparative examples will be described in detail.

Component Manufacturing example  1> Of ginseng extract  Produce

(1) The ginseng roots were dried to a moisture content of 10% or less and pulverized to 80 mesh.

(2) The crude powder was added to the prepared ground powder at a weight ratio of 1: 3 and immersed for 2 hours to 10 hours to elute the sulfur component.

(3) After the immersion, the extract was concentrated by reflux distillation to prepare the extract. The recovered alcohol can be used again after storage.

Component Manufacturing example  2> Manufacturing of nem oil

(1) dried the seeds.

(2) The seeds were peeled off after peeling, and the shells were removed.

(3) Oil was recovered by compression.

Component Manufacturing example  3> Manufacture of powder of camphor

(1) The plant outpost was dried.

(2) Alcohols were added to dried plants at a weight ratio of 1: 3 and immersed for 12 hours or more.

(3) After the immersion, the volume was concentrated to 1/3 by reflux distillation. The recovered alcohol can be used again.

(4) After filtration, the filtrate was lyophilized to prepare a lobster powder.

Component Manufacturing example  4> Manufacture of branch powder

(1) The owner was washed after washing.

(2) The dried branches were crushed.

(3) Alcohol was added to the crushed leaf paper at a weight ratio of 1: 3 to concentrate the leaf extract.

(4) The concentrated leaf extract was filtered and spray-dried to produce a leaf powder.

≪ Preparation method of natural insecticidal composition >

The production methods of the natural insecticidal compositions of the present invention were prepared by mixing the content ratios of the compositions shown in the following Table 1 to Production Examples 1 to 3 of the natural insecticidal compositions.

division Example 1 (% by weight) Gosam extract 20.5 to 68.9 Nem oil 2.0 to 8.0 Radish Extract 5.0 to 15.0 Branch extract 2.0 to 8.0 Surfactants 2.0 to 8.0 Xanthan gum 0.1 to 0.5 water 20.0 to 40.0

< Example  1 > natural insecticidal composition Manufacturing example  One

Production Example 1 of the natural insecticidal composition of the present invention was prepared by mixing at the following composition ratios.

(S1) 5.0 wt% of nematic oil and 4.0 wt% of surfactant were mixed and emulsified.

(S2) To the mixture prepared in the step (S1), 45.0% by weight of the extract was added and stirred.

(S3) 10.0% by weight of Lycopersiconazole extract and 5.0% by weight of Dibusa extract were mixed.

(S4) 0.3 wt% of xanthan gum was added to the mixture prepared in the step (S3) and dispersed.

(S5) 30.7% by weight of the mixture prepared in the step (S4) and water were added to the mixture prepared in the step (S2) and stirred to prepare the natural insecticidal composition of the present invention.

< Example  2 > Manufacturing example  2

Production Example 2 of the natural insecticidal composition of the present invention was prepared by mixing at the composition ratio described below.

(S1) 2.0% by weight of oil and 2.0% by weight of a surfactant were mixed and emulsified.

(S2) To the mixture prepared in the step (S1), 68.9% by weight of the extract was added and stirred.

(S3) 5.0% by weight of Radix extract and 2.0% by weight of Radix extract were mixed.

(S4) 0.1 wt% of xanthan gum was added to the mixture prepared in the step (S3) and dispersed.

(S5) 20.0 wt% of the mixture prepared in the step (S4) and 20.0 wt% of water were added to the mixture prepared in the step (S2) and stirred to prepare the natural insecticidal composition of the present invention.

< Example  3 > Manufacturing example  3

Production Example 3 of the natural insecticidal composition of the present invention was prepared by mixing at the composition ratio described below.

(S1) 8.0% by weight of nematic oil and 8.0% by weight of a surfactant were mixed and emulsified.

(S2) 20.5% by weight of the extract was added to the mixture prepared in the step (S1) and stirred.

(S3) 15.0% by weight of Radix sativa L. extract and 8.0% by weight of Dibutan extract were mixed.

(S4) 0.5 wt% of xanthan gum was added to the mixture prepared in the step (S3) and dispersed.

(S5) 40.0% by weight of the mixture prepared in the step (S4) and water were added to the mixture prepared in the step (S2) and stirred to prepare the natural insecticidal composition of the present invention.

< Comparative Example  1> Comparison of natural insecticide compositions Manufacturing example  One

Comparative Preparation Example 1 of the natural insecticidal composition of the present invention was prepared by mixing with the following composition ratio.

(A1) 5.0% by weight of oil and 5.0% by weight of a surfactant were mixed and emulsified.

(A2) To the mixture prepared in the step (A1), 50.0% by weight of the extract was added and stirred.

(A3) 0.3 wt% of xanthan gum was added to the mixture prepared in the step (A2) and dispersed.

(A4) 39.7% by weight of water was added to the mixture prepared in the step (A3) and stirred to prepare Comparative Preparation Example 1 of a natural insecticidal composition.

< Comparative Example  2> Comparison of natural insecticide compositions Manufacturing example  2

Comparative Preparation Example 2 of the natural insecticidal composition of the present invention was prepared by mixing with the following composition ratio.

(B1) 20.0% by weight of Radish Extract and 20.0% by weight of Radix Extract were mixed.

(B2) 5.0% by weight of a surfactant was added to the mixture prepared in the step (B1) and emulsified.

(B3) 0.3 wt% of xanthan gum was added to the mixture prepared in the step (B2) and dispersed.

(B4) 54.7% by weight of water was added to the mixture prepared in the step (B3) and stirred to prepare Comparative Preparation Example 2 of a natural insecticidal composition.

&Lt; Effect of phytotoxic insecticides,

Using the natural insecticidal composition of the present invention, a pharmacological and phytotoxic test was carried out on bacuptail moth larvae, tobacco budworm larvae and cotton aphids. The survey method was investigated as shown in Table 2 below.

Target pest division Investigation method Number of repeats Investigation method Caterpillar moth Drug efficacy test Life burden survey Episode 2 After 12 hours and 36 hours after drug treatment, Weak test Survey 3rd time Weakness after 3, 5, and 7 days of drug treatment Tobacco larvae larvae Drug efficacy test Life burden survey Episode 2 After 12 hours and 36 hours after drug treatment, Weak test Survey 3rd time Weakness after 3, 5, and 7 days of drug treatment Cotton aphid Drug efficacy test Life burden survey Episode 2 After 12 hours and 36 hours after drug treatment, Weak test Survey 3rd time Weakness after 3, 5, and 7 days of drug treatment

< Experimental Example  1> Natural insecticidal Laboratory test  result

< Experimental Example  1-1> Cabbage Moth  Caterpillar Of laboratory tests  Insecticidal effect Composition Dilution concentration Before processing
Live appendix Elapsed time ( Live appendix ) The final control
(After 36 hours /%) After 12 hours After 36 hours Comparative Preparation Example 1 500 times 20 10 6 70.0 1,000 times 20 12 8 60.0 Comparative Production Example 2 500 times 20 15 14 30.0 1,000 times 20 16 15 25.0 Example 1 500 times 20 3 0 100.0 1,000 times 20 5 One 95.0 Example 2 500 times 20 6 One 95.0 1,000 times 20 8 3 85.0 Example 3 500 times 20 4 0 100.0 1,000 times 20 6 One 95.0

< Experimental Example  1-2> Smoking room  Caterpillar Of laboratory tests  Insecticidal effect Composition Dilution concentration Before processing
Live appendix Elapsed time ( Live appendix ) The final control
(After 36 hours /%) After 12 hours After 36 hours Comparative Preparation Example 1 500 times 20 15 13 35.0 1,000 times 20 17 16 20.0 Comparative Production Example 2 500 times 20 18 15 25.0 1,000 times 20 19 16 20.0 Example 1 500 times 20 13 5 75.0 1,000 times 20 15 7 65.0 Example 2 500 times 20 14 6 70.0 1,000 times 20 17 8 60.0 Example 3 500 times 20 14 5 75.0 1,000 times 20 16 7 60.0

< Experimental Example  1-3> Of cotton aphids Of laboratory tests  Insecticidal effect Composition Dilution concentration Before processing
Live appendix Elapsed time ( Live appendix ) The final control
(After 36 hours /%) After 12 hours After 36 hours Comparative Preparation Example 1 500 times 50 30 18 64.0 1,000 times 50 42 26 48.0 Comparative Production Example 2 500 times 50 17 6 88.0 1,000 times 50 19 9 82.0 Example 1 500 times 50 0 0 100.0 1,000 times 50 0 0 100.0 Example 2 500 times 50 3 One 98.0 1,000 times 50 5 2 96.0 Example 3 500 times 50 0 0 100.0 1,000 times 50 2 0 100.0

< Experimental Example  2> Field test results of natural insecticides

< Experimental Example  2-1> Cabbage Moth  Insecticidal effect of field test of larvae (dilution concentration 1,000 times / after 36 hours elapsed / 3 times) Composition Density before processing (grains / sphere) Live appendix Final control (%) 1 time Episode 2 3rd time Average Example 1 51 3 5 4 4.0 92.2 Comparative Preparation Example 1 45 19 21 21 20.3 54.9

< Experimental Example  2-2> Smoking room  Insecticidal effect of field test of larvae (dilution concentration 1,000 times / after 36 hours elapsed / 3 times) Composition Density before processing (grains / sphere) Live appendix Final control (%) 1 time Episode 2 3rd time Average Example 1 31 9 12 8 9.7 68.7 Comparative Preparation Example 1 27 21 25 22 22.7 15.9

< Experimental Example  2-3> Of cotton aphids  Insecticidal effect of field test (dilution concentration 1,000 times / after 36 hours of elapsed time / 3 times) Composition Density before processing (grains / sphere) Live appendix Final control (%) 1 time Episode 2 3rd time Average Example 1 101 2 5 3 3.3 96.7 Comparative Preparation Example 1 123 87 81 79 82.3 33.1

< Experimental Example  3> Weak test (cabbage) process Test crop Weak degree (0 ~ 5) Remarks Standard amount (1,000 times) Dose (500 times) Example 1 cabbage 0 0 No Weak Example 2 cabbage 0 0 No Weak Example 3 cabbage 0 0 No Weak

As described above, the present invention is only one embodiment for the natural insecticidal composition containing the plant extract as an active ingredient and the method for producing the same, and the present invention is not limited to the above embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. .

Claims (11)

A natural insecticidal composition comprising, as an active ingredient, a plant extract, which is characterized in that it is composed of a ginseng extract, a nematic oil, an extract of Zygomycetin, a lipase extract, a surfactant, a xanthan gum, and water. The method according to claim 1,
Wherein the extract is selected from the group consisting of 20.5 to 68.9% by weight of ginseng extract, 2.0 to 8.0% by weight of nematic oil, 5.0 to 15.0% To 40.0% by weight of a plant extract as an active ingredient. The method according to claim 1,
Wherein the extract is from 33.6 to 55.8% by weight. The method according to claim 1,
Wherein the nematic oil comprises 4.0 to 6.0% by weight of the nematic oil. The method according to claim 1,
Wherein the extract is from 8.0 to 12.0% by weight. The method according to claim 1,
Wherein the leaf extract comprises 4.0 to 6.0% by weight of a plant extract. The method according to claim 1,
Wherein the surfactant is contained in an amount of 3.0 to 7.0% by weight. The method according to claim 1,
Wherein the xanthan gum is contained in an amount of 0.2 to 0.4% by weight. (S1) mixing and emulsifying nematic oil and a surfactant;
A step (S2) of adding the gossam extract to the mixture prepared in the step (S1) and stirring the mixture;
A step (S3) of mixing the leaf extract and the leaf extract;
(S4) adding and dispersing xanthan gum to the mixture prepared in the step (S3);
And a step (S5) of adding the mixture prepared in the step (S4) and water to the mixture prepared in the step (S2) and stirring the mixture (S5). Gt; 10. The method of claim 9,
(S1) mixing and emulsifying 2.0 to 8.0% by weight of nematic oil and 2.0 to 8.0% by weight of a surfactant;
Adding (Step S2) 20.5 ~ 68.9% by weight of the extract of Gossam gum extract to the mixture prepared in the step (S1) and stirring the mixture;
(S3) mixing 5.0 to 15.0% by weight of the extract of L. rabbit and 2.0 to 8.0% by weight of the extract of L. japonica;
(S4) adding and dispersing 0.1 to 0.5% by weight of xanthan gum to the mixture prepared in the step (S3);
And a step (S5) of adding the mixture prepared in the step (S4) and 20.0 to 40.0% by weight of water to the mixture prepared in the step (S2) and stirring the mixture. &Lt; / RTI &gt; 11. The method according to claim 9 or 10,
Wherein the surfactant is one or a mixture of two or more selected from castor oil, ethoxylated polyoxyethylene dodecyl monoether (ethoxylated + Polyoxyethylene dodecyl monoether) as an active ingredient, &Lt; / RTI &gt;

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