KR20190052978A - Organic agricultural material composition for pest management by using 3kinds of plant extracts - Google Patents

Abstract

The present invention relates to an organic agricultural material composition for managing a pest using three plant extracts, which has excellent control effects while using the small amount thereof, comprising: a plant extract mixture including a citronella extract, a neem tree extract, and a shrubby sophora extract; and a surfactant.

Description

[0001] The present invention relates to an organic agricultural material composition for pest management using three kinds of plant extracts,

The present disclosure relates to organic agricultural material compositions for pest management using three plant extracts.

Pest bugs are pests that directly or indirectly cause damage to trees, trees, as well as special crops such as fruit trees, flowers, and ginseng. There are more than 7,000 species of pod bugs in the world and 159 species in Korea. Coccoidea contains 20 families and is divided into two groups: Diaspididae, Coccidae, Pseudococcidae, Eriococcidae, Ischeliaceae, Margarodidae) are common.

Among them, about 2,500 species of pod bugworm are known all over the world. They produce shells with shell-shaped pods in the trees and damage them, and 72 species are recorded in our country.

There are more than 1,200 varieties of wheat beetles worldwide. Some species are causing problems worldwide due to international trade. In Korea, 31 species are known, including Ceroplastes japonicus.

There are about 2,000 species of insect pests in the world, and this species has the characteristic that females wrap their faces. There are 25 known species in Korea including Crisicoccus pini.

There are more than 500 species of pod intervertebrata worldwide, and six species are known in Korea, including Eriococcus lagerstroemiae. There are more than 250 species of Isseeridae in the world and 8 species are known in Korea including Matsucoccus thunbergianae.

The larvae of the pods are most commonly affected by nutrients such as trees, trees, trees and trees, as well as various kinds of flowering and flowering trees. The main species causing damage to our country are: Matsucoccus thunbergianae, Eriococcida lagerstroemiae, Coccidae, belonging to the Margarodidae, Ceroplastes japonicus belonging to the genus Pseudococcidae, Crisicoccus pini belonging to the Pseudococcidae and Planococcus citri.

Intertwine worms cover the body with various types of wax materials (pods) and fix the body to the bark of leaves or leaves of the tree. Since they live in sucking the sap in them, they do not come into direct contact with the body of the worms It is a pest which has a low effect of controlling the medicine and is difficult to control. As a result of abuse of pesticides due to this, the natural enemies are rapidly decreasing due to the abrupt decrease of natural enemies. Especially, the damage to roadside trees and landscaping trees frequently spraying medicines is more serious. In addition, it is a pest which has a high frequency of detection even in the process of quarantine of imported plants because it inhibits photosynthesis and damages the product by generating secondary soot disease due to nectar, virus-mediated and secretory secretion from juvenile.

The control of pod bugs has mainly used chemical control, but it has caused side effects such as danger to human life, environmental risks such as risks to non - target organisms, residual toxicity and ecosystem disturbance, and appearance of resistant individuals. Therefore, it is required to develop a control agent that can replace chemical pesticides to control insect pests.

In recent years, there has been a growing demand from farmers who demand quality agricultural products and produce high-quality safe agricultural products to create added value. As an alternative method to meet this demand, plant extracts have been used as food materials for a long period of time because they are naturally derived materials and can be effectively used for control of insect pests and insects. In addition, plant extracts may exhibit different effects depending on the kind of plant and target insect pests.

The patents disclosed on the natural plant extracts used as compositions for controlling pests have heretofore been disclosed in Korean Patent No. 10-0971314 as plant essential oils such as bay, caraway seed, cardamon ceylon, lemongrass, lime disc 5F, oregano, Natural control agents have been disclosed for heating pests comprising the resulting compounds. EP 10-0679661 discloses an environmentally friendly mite control agent comprising a plant alcohol extract selected from cloves, cinnamon, mustard, horseradish, and the like. Patent No. 10-0596622 discloses a composition for controlling head lice comprising a plant extract such as warmwood oil, peppermint oil, penny royal oil, and spearmint oil as an effective ingredient. None of the above documents disclose the control of the insect pest using plant extracts.

KR 10-0971314 B KR 10-0679661 B KR 10-0596622 B

Accordingly, an aspect of the present disclosure is to provide an organic agricultural material composition for insect pest management that contains a plant extract that can replace chemical pesticides as an insect pest control agent.

The organic agricultural material composition for insect pest management according to one embodiment of the present disclosure for achieving the above viewpoint may include a citronella extract, a nim extract, a plant extract mixture including a ginseng extract, and a surfactant.

According to an exemplary embodiment, the composition may comprise 50-90 parts by weight of a plant extract mixture and 10-50 parts by weight of a surfactant.

According to an exemplary embodiment, the plant extract mixture may contain 2 to 60 parts by weight of citronella extract, 5 to 30 parts by weight of nim extract and 10 to 60 parts by weight of extract of gossypium.

According to an exemplary embodiment, the surfactant may be selected from the group consisting of polyoxyethylene dodecyl monoether, isopropyl alcohol and phosphates thereof.

According to an exemplary embodiment, the composition may further comprise castor oil.

According to an exemplary embodiment, the blend weight ratio of the botanical extract mixture: castor oil may be from 1: 1 to 4: 1.

According to an exemplary embodiment, the composition may further comprise a wood vinegar solution.

According to an exemplary embodiment, the blend weight ratio of the plant extract mixture to the wood vinegar may be 1: 1 to 4: 1.

According to an exemplary embodiment, the composition may be in the form of a granule, an emulsion, a wettable powder, or a liquid.

The organic agricultural material composition for insect pest management according to one embodiment of the present disclosure can be used as a pesticide controlling agent instead of chemical pesticide. In particular, the organic pesticide-based organic agricultural material has an excellent control effect even when using a small amount of pod bug which is difficult to control.

Before describing this disclosure in more detail, it is to be understood that the phraseology or words used in the present specification and claims should not be construed in a conventional or dictionary sense, Should be construed in light of the meaning and concept consistent with the technical idea of the present disclosure, on the basis that it can be properly defined. Therefore, the constitution of the embodiment described in the present specification is merely a preferred example of the present disclosure, and not all of the technical ideas of the present disclosure are described. Therefore, various equivalents and variations And the like.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present disclosure will be described in detail so that those skilled in the art can easily carry out the present disclosure. Moreover, in the description of the present disclosure, a detailed description of related art which may unnecessarily obscure the gist of the present disclosure is omitted.

As used in this disclosure, the term " organic agricultural material " means a product made from materials or materials that are acceptable materials that can be used in the production, manufacture, processing, or handling of organic agricultural products.

The organic agricultural material composition for pest management according to one embodiment of the present disclosure may include a citronella extract, a nim extract, a plant extract mixture including a ginseng extract, and a surfactant.

In one embodiment, the organic agricultural material composition for pest control may comprise 50 to 90 parts by weight of the plant extract mixture and 10 to 50 parts by weight of the surfactant.

The weight used in this disclosure means the weight ratio. For example, the mixing of 2 parts by weight of B with respect to 1 part by weight of A means that further mixing of components other than A and B also maintains a 1: 2 weight ratio of A: B in the mixture.

Citronella extract, nimple extract, and gossam extract, which are major components of the organic agricultural material composition for pest management of the present disclosure, may be an oil component.

Citronell lives in the tropics. It extracts essential oils and is used as a source of fragrance and cosmetics. The main ingredient of citronella extract is geraniol. It is known that citronella oil blocks access to insects and mosquitoes, so this disclosure utilizes this insecticidal function.

Gosam is flavored and has the effect of ginseng, so it is prescribed for indigestion, neuralgia, hepatitis, jaundice and hemorrhoids. In the private sector, it is also used as an insecticide by dying stem or leaf. The pharmacological effects include leukopenia treatment and anti-radioactivity action, increase in coronary blood flow, cardiac muscle strengthening, hypoglycemic action, antitumor, antibacterial and immunosuppressive action, and this insecticidal function is also utilized in the present disclosure. The major component of the ginseng extract is matrine.

Neem Tree (Azadirchta indica A.Juss) is a semi-evergreen arboreous tree of the Meliaceae, which grows in subtropical and tropical regions, 60% of which is inhabited in India. 2-3 months White flowers bloom, green flowers that run after the flowers are yellow in July and August, the birds are enjoying their favorite. Since then, seeds of this tree have been oiled and fed to livestock to fertilize the soil, and the oil has been used as an insecticide. In addition, the nimble bark is cold, wrinkled, astringent, fatigue, cold, fever, lack of appetite is good when used in the treatment of wounds and thirst. The fruit of the tree is bitter, and it is used as a hemorrhoid medicine, insect repellent. Mr. Taste is also used as an insecticide and has a detoxifying effect. 45% of the oil is extracted from the oil. It is a bitter oil with a similar odor of garlic and sulfur. It is rich in fatty acids and contains vitamin E and essential amino acids. The main ingredient, azadirachtin, Growth, and reproduction, and is being used effectively as a pesticide.

In the present disclosure, plant extracts can be obtained using various extraction methods known in the art, such as leaves of plants, fruits of plants, seeds of plant seeds or plant stem. For example, alcohol extraction may be performed after extracting hot water, alcohol extraction may be performed while warming to a predetermined temperature, or alcohol extraction may be used, followed by heating and concentration. In the present disclosure, a method of extracting with heat is used, but the present invention is not limited thereto. In one embodiment, the water to plant may be mixed in a weight ratio of 1: 1 to 3: 1, followed by extraction for 1 to 48 hours with heat of at least 100 < 0 > C being applied. Preferably, water to plant is mixed at a weight ratio of 1: 1 to 2: 1 and then extracted at 100 to 120 캜 for 5 to 6 hours. Steam and oil molecules generated by applying heat can be passed through a cooler to obtain a liquid extract. Plant extracts are decomposed very quickly by ultraviolet rays or microorganisms to produce a metabolic pathway, so there is little damage to the environment and human body due to the residual drug.

In one embodiment, the mixture weight ratio of citronella extract: nimex extract: gossam extract may be 2 to 60: 5 to 30: 10 to 60, preferably 10: 50: 10 to 30 : May be between 10 and 50. When mixed at the above mixing ratio, the composition according to the present disclosure exhibits excellent insecticidal activity against insect pests of insects of various crops, exhibits low toxicity against fishes and shoots, has a rapid decomposition and no residue, And an organic agricultural material composition for environmentally friendly pest control having a purging action.

In one embodiment, the organic agricultural material composition for pest management comprises a plant extract mixture to a surfactant in a ratio of 1: 9 to 9: 1, such as 1: 9 to 5: 5, 2: 8 to 8: : 7 to 7: 3. If the mixing weight ratio of the surfactant / plant extract mixture is less than 1/9, the emulsifying ability may deteriorate. If the mixing weight ratio is more than 9/1, the surfactant may be toxic.

Surfactant is a substance that adsorbs at the interface of the mixed material to reduce the free energy of the interface to facilitate the mixing of the material. The surfactant is an anionic surfactant, a cationic surfactant, a nonionic surfactant, A surfactant, and a surfactant. For example, polyoxyethylene dodecyl monoether, isopropyl alcohol, and phosphates thereof, but is not limited thereto.

The organic composition for insect pest management may be mixed with water that is 100 to 2,000 times, 500 to 2,000 times, or 1,000 to 2,000 times larger than the volume of the composition, and the diluted composition may be sprayed onto the plant. For example, it can be evenly distributed throughout the leaf surface of the plant.

Hereinafter, the present disclosure will be described in more detail by way of examples, but the following examples do not limit the scope of the present disclosure.

≪ Example 1 > Selection of a plant extract having a high insecticidal activity against an insect worm

 A 1.5 wt% agar medium was plated on a 50 mm x 15 mm breeding dish. The cabbage leaf was cut into 50 mm in diameter, placed on a breeding dish, and inoculated with a third instar larva. 10 ~ 15 per repetition, 5 repetition treatment. After inoculation, the plant extract (test drug) extracted from various plants using the extraction method of the present disclosure was sprayed 2 to 3 times (8 to 10 ml). 24 hours and 48 hours after spraying, insecticidal water was irradiated, and the results are shown in Table 1.

Selection of plant extracts with high insecticidal activity against intertwine worms Test agent Before drug treatment
density Insecticide rate (%) Average
Insecticide rate
(%) I repeat II iteration Repeat III Repeat IV Ⅴ iteration Citronella extract 60% ^{* 1} 10 60 70 60 70 70 66.00 Derris extract 2% 10 70 60 60 70 60 64.00 Nem extract 0.3% 10 40 20 20 40 40 32.00 Sabadilla extract 100% 10 40 40 50 60 50 48.00 Insecticide extract 4% 10 20.0 30.0 50.0 30.0 30.0 32.00 100% 10 10.0 20.0 10.0 30.0 30.0 20.00 Osthole 2% 10 10.0 0.0 0.0 0.0 0.0 2.00 Nicotine 2% 10 10.0 20.0 20.0 50.0 50.0 30.00 Toosendanin 0.5% 10 0.0 0.0 30.0 0.0 20.0 10.00 Stemonein 0.5% 10 0.0 0.0 0.0 0.0 0.0 0.00 Tymol 2% 10 10.0 0.0 0.0 10.0 0.0 4.00 Jojoba oil 10% 10 0.0 0.0 10.0 0.0 0.0 2.00 Karenza oil 5% 10 0.0 10.0 0.0 0.0 0.0 2.00 Wood vinegar 20% 10 0.0 10.0 10.0 10.0 0.0 6.00 No treatment 10 0.0 0.0 0.0 0.0 0.0 0.00

* 1: represents the weight percentage of the main component contained in the plant extract. Depending on the content of the main component, the plant extract may have various effects such as insecticidal effect, insect inducing effect, or avoiding effect.

From Table 1, five plant extracts with high insecticidal activity against intergrowth worms, namely Citronella extract, Deris extract, Nimex extract, Sabadilla extract and Gossam extract, were selected as plant extracts for controlling insect pests. In Example 2 and Comparative Examples 2 to 6, an organic agricultural material composition for pest management was prepared by mixing the selected plant extract mixture with a surfactant. Polyoxyethylene dodecyl monoether was used as a surfactant.

≪ Example 2 >

A mixture of three plant extracts having a weight ratio of citronella extract: nimex extract: gossam extract = 10: 17: 8.5 was prepared. An organic agricultural composition for pest management was prepared by mixing 160 g of a mixture of three kinds of plant extracts and 40 g of a surfactant.

≪ Comparative Example 1 &

A mixture of three plant extracts of Sabadilla extract: nimus extract: nimex extract = 1: 8: 4 was prepared. An organic agricultural composition for pest management was prepared by mixing 160 g of a mixture of three kinds of plant extracts and 40 g of a surfactant.

≪ Comparative Example 2 &

A mixture of four plant extracts of Sabadilla extract: Citronella extract: Nimex extract: Cinnamon extract = 1: 1: 1: 0.05 was prepared. An organic agricultural composition for pest management was prepared by mixing 160 g of a mixture of four plant extracts and 40 g of a surfactant.

≪ Comparative Example 3 &

A mixture of four plant extracts having a weight ratio of Sabadilla extract: Citronella extract: nimus extract: Deris extract = 1: 2.5: 1: 1 was prepared. An organic agricultural composition for pest management was prepared by mixing 160 g of a mixture of four plant extracts and 40 g of a surfactant.

≪ Comparative Example 4 &

A mixture of three plant extracts having a weight ratio of deeris extract: Citronella extract: nimex extract = 4: 6: 1 was prepared. An organic agricultural composition for pest management was prepared by mixing 160 g of a mixture of three kinds of plant extracts and 40 g of a surfactant.

≪ Comparative Example 5 &

A mixture of 5 species of plant extracts was prepared with the weight ratio of Pseudomonas spp.: Gossam extract: Nimex extract: Girasol extract + Oak tree extract = 3: 17: 5: An organic agricultural composition for pest management was prepared by mixing 160 g of a mixture of five plant extracts and 40 g of a surfactant.

≪ Comparative Example 6 >

A mixture of 5 species of plant extracts was prepared which had a mixture weight ratio of deer's extract: gocham extract: nim extract: alpha-spinasterol + oak extract = 20: 17: 5: An organic agricultural composition for pest management was prepared by mixing 160 g of a mixture of five plant extracts and 40 g of a surfactant.

<Experimental Example 1>

The composition of Example 2 and Comparative Examples 1 to 3 was diluted 1,000-fold in water. The insecticidal effect of the diluted composition on the insect pest was examined. The results are shown in Table 2.

Insecticidal effect on organic agricultural material composition for pest insect pest management Test agent Test agent Dilution drainage and usage Average insecticidal rate (%) Example 2 Citronella extract 20%
+ Syrup extract 34%
+ Ginseng extract 17% 1,000 times
(20 ml / 20 L) 72.0 Comparative Example 1 Citronella extract 40%
+ Nymph extract 20%
+ Sabadilla extract 5% 1,000 times
(20 ml / 20 L) 54.0 Comparative Example 2 Citronella extract 16%
+ Nymph extract 20%
+ Cinnamon extract 1%
+ Sabadilla extract 5% 1,000 times
(20 ml / 20 L) 56.0 Comparative Example 3 Citronella extract 40%
+ Nymph extract 20%
+ Derris extract 30%
+ Sabadilla extract 5% 1,000 times
(20 ml / 20 L) 62.0 No treatment - - 0.0

As shown in Table 2, after 3 days from the application of the diluted solution, Example 2 showed a control effect of 72.0% or more, whereas Comparative Examples 1, 2, and 3 showed a low control efficacy of 62% or less.

<Experimental Example 2>

The compositions of Example 2 and Comparative Examples 4 to 6 were each diluted 1,000-fold in water. When the insect pests grew properly in the grapes grown in the pavement of the facility, the preliminary density was examined, and the diluent was sprayed and the control agent was examined after 20 days. Tests were carried out in vineyards constructed according to general practice. No pesticides were sprayed on the test pavement before and after the test period, and the planting distance was 3.0 X 5.0 m. The drug treatments were tested in three complete iterations. The area per test area was 15 m2. Table 3 shows the results on the 20th day after the drug treatment.

Organic agricultural material composition control for insect pest insect control after 20 days Test agent Test agent Dilution drainage and usage Control after 20 days treatment (%) Example 2 Citronella extract 20%
+ Syrup extract 34%
+ Ginseng extract 17% 1,000 times
(20 ml / 20 L) 63.6 Comparative Example 4 Citronella extract 20%
+ Nymph extract 10%
+ Deerish extract 40% 1,000 times
(20 ml / 20 L) 54.3 Comparative Example 5 Pest control extract 6%
+ Nymph extract 10%
+ Ginseng extract 34%
+ Gilasol extract + oak tree extract 40% 1,000 times
(20 ml / 20 L) 57.5 Comparative Example 6 However,
+ Nymph extract 20%
+ Deerish extract 40%
+ α-spinasterol + oak extract 6% 1,000 times
(20 ml / 20 L) 66.8 No treatment - - -

As a result of the test, the test agent showed a control effect of 54.3% or more on the powdery mildew worms in the vineyard, and 63.6% and 66.8% in Example 2 and Comparative Example 6, respectively.

The control effect of Comparative Example 6 was the highest for the powdery mildew worms, but Comparative Example 6 was excluded from the toxicity test for the acute fish toxicity to the third grade or higher.

Although the present disclosure has been described in detail with reference to specific embodiments thereof, it should be understood that the present disclosure is not intended to be limited thereto and that various changes and modifications may be made by those skilled in the art, It is obvious that it can be modified or improved.

All such modifications and variations are intended to fall within the scope of this disclosure, and the specific scope of protection of this disclosure will be apparent from the claims that follow.

Claims (9)

A plant extract mixture comprising citronella extract, nimple extract, and gossam extract; And
An organic agricultural material composition for pest management comprising a surfactant. The method according to claim 1,
Wherein the composition comprises 50-90 parts by weight of a plant extract mixture and 10-50 parts by weight of a surfactant. The method according to claim 1,
Wherein the plant extract mixture comprises 2 to 60 parts by weight of Citronella extract, 5 to 30 parts by weight of nim extract and 8 to 60 parts by weight of extract of Gossam bush. The method according to claim 1,
Wherein the surfactant is at least one selected from the group consisting of polyoxyethylene dodecyl monoether, isopropyl alcohol and phosphates thereof. The method according to claim 1,
Wherein the composition further comprises castor oil. The method of claim 5,
Wherein the weight ratio of the plant extract mixture to the castor oil is 1: 1 to 4: 1. The method according to claim 1,
Wherein the composition further comprises a vinegar liquid. The method of claim 7,
Wherein the weight ratio of the plant extract mixture to the wood vinegar is 1: 1 to 4: 1. The method according to any one of claims 1 to 8,
Wherein the composition is in the form of a granule, an emulsion, a wetting agent, or a liquid.