KR20190052979A - Organic agricultural material composition for pest management by using 4 kinds of plant extracts - Google Patents

Abstract

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

Description

TECHNICAL FIELD The present invention relates to an organic agricultural material composition for pest management using four kinds of plant extracts,

This disclosure relates to organic agricultural material compositions for pest management using plant extracts.

As warming has accelerated and international trade has increased in recent years, new outbreak pests such as brown wing hawks, American moths worms, flower cicadas and brown goats are also increasing. It increased by 23% from 9864 in 2014 to 12,156 in 2015, and soared 80% in 2016 to 20,193.

   These exotic pests are caused by various crops such as apple, peach, marine oil, persimmon, chestnut, etc. Damage symptoms are that larvae and adults suck on the stem to weaken the water and cause soot by feces (beeswax), which lowers the merchantability of the crop and, if severe, causes the crop to die.

The control is mainly composed of neonitinoid pesticides because there is no registered environmental control agent, but it is difficult to control the pesticide by spraying pesticides with nearby pesticides. In addition, aerial control using a helicopter is effective, but there is a fear that equipment shortages or damage to neighboring farms may be hindered, which makes it difficult to carry out large-scale joint control.

   The use of chemical pesticides mainly for neonicotinoid pesticides has been used for the control of foreign pests. However, the chemical pesticides have problems such as acidification and contamination of the soil, toxicity to the human body, cause. Due to recent environmental awareness and consumers' preference for eco-friendly foods, interest in eco-friendly farm products that can replace chemical pesticides has been growing, and its use is increasing. Examples of eco-friendly farm products that can replace chemical pesticides include the use of natural pesticides extracted from plants and the use of biological control agents utilizing natural enemies. In the case of exotic pest control using natural extracts, it is often a folk remedy of individual farmers whose effects have not been objectively verified. In addition, some commercial products have been tried by some manufacturers, but there are still many problems to be solved in order to replace chemical pesticides due to limitations of control effect, difficulty of manufacturing method, limited circulation period, etc. . In particular, products with lower control effects can cause secondary problems due to an increase in the number of natural enemies, which is not a desirable control method.

Recently, studies have been made to use environmentally friendly plant extracts with low toxicity for human and livestock as a pest control agent. The patent described on the natural plant extract used as a composition for controlling pests is disclosed in Patent No. 10-0971314 in which a plant essential oil such as bay, caraway seed, cardamon cilone, lemongrass, lime dis 5F, oregano, A natural control agent for a heating pest is disclosed. 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 these references disclose the control of exotic pests using plant extracts.

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

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

According to one embodiment of the present disclosure for achieving the above aspect, the organic agricultural material composition for insect pest management comprises a plant extract mixture comprising a deerish extract, a nim extract, and 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 10 to 60 parts by weight of a deerish extract, 5 to 30 parts by weight of a nim extract, and 10 to 60 parts by weight of a ginseng extract.

According to an exemplary embodiment, the surfactant may be selected from the group consisting of polyoxyethylene sorbitan monolaurate and its phosphate.

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

According to an exemplary embodiment, the weight ratio of plant extract to 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 botanical 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 has a remarkable control effect against foreign pests such as American stag beetles, brown winged lycopods, flower cicadas, and brown feces even in a small amount, have.

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 is a plant extract mixture comprising deurase extract, nim extract, and gossam 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.

The main components of the organic agricultural material composition for insect pest management of the present invention, the deerish extract, the nim extract, and the gossam extract may be oil components.

Deeris is a plant native to Southeast Asia and is used for the control of aphids due to the insecticidal properties of rotenone contained in deer plants and is known to be highly toxic to fish.

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 deerish extract to nematode extract is in the range of 10 to 60: 5 to 30:10 to 60, preferably 10:40 to 10:30, 10 to 50 days. When mixed at the above mixing weights, the composition according to the present disclosure exhibits excellent insecticidal activity against outbreak pests such as American pest, flower cicada, brown-winged lycopodidae, and brown fescue among the pests of various crops, Toxicity and decomposition is fast and there is no residue. Therefore, it can be usefully used as an organic agricultural material composition for environment-friendly pest control with environmental preservation and purification 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 sorbitan monolaurate 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 plant extracts having high insecticidal activity against foreign pests

Using the extraction method of the present disclosure, the plant extract was extracted from various kinds of plants, and a composition was prepared by mixing about 160 g of the plant extract and about 40 g of polyoxyethylene sorbitan monolaurate. The composition was diluted 1,000-fold in water to prepare a medicament.

<Experimental Example 1>

Brown winged lice

After inoculating the eggplant and brown winged larvae collected in each sealed container (SPL insect breeding box: 72w x 72l x 100h mm), the prepared medicines were sprayed directly. The insecticidal rate was examined visually until 5 days after the treatment.

Brown

Each of the insect breeding cages (72w x 72l x 100h mm) was directly sprayed with the prepared grapefruit and brown feces. The insecticidal rate was examined visually up to 48 hours.

Flower cicada

After spraying 5 grapevines collected from each SPL insect breeding dish (100 d x 40 h mm) and 5 adult caterpillars, the prepared medicines were sprayed directly. The insecticidal rate was examined visually until 5 days after the treatment.

American beetle

Inoculation of 30 grains of grapevines collected from each insect breeding cage (72w x 72l x 100h mm) and 30 adult American insect adults was sprayed directly. The insecticidal rate was examined visually until 5 days after the treatment.

The results of the insecticidal rate are shown in Table 1.

Selection of plant extracts with high insecticidal activity against four kinds of agricultural pests Test agent Average insecticidal rate (%) American beetle Brown winged lice Flower cicada Brown Insecticide extract 4% 76.67 80.00 84.45 86.67 Deris extract 40% 70.00 73.33 77.78 76.67 Nymph extract 100% 43.33 43.33 48.89 50.00 Sabadila extract 100% 53.33 53.33 51.11 56.67 Citronella oil 3% 43.33 46.67 48.89 50.00 Eucalyptus 3% 46.67 43.33 51.11 43.33 However, 70.00 66.67 71.11 73.33 Castor oil 20% 33.33 36.67 42.22 43.33 Wood vinegar 20% 36.67 36.67 40.00 43.33 No treatment 0.00 0.00 0.00 0.00

From the results shown in Table 1, four kinds of antimicrobial extracts, deerish extract, nimex extract and ginseng extract, which are expected to have an agricultural pest control effect, were selected. The insect repellent extract comprises Pyrethrin I and Pyrethrin II in an amount of 20 to 70% by weight, the Deeris extract contains 3 to 12% by weight of insecticidal active ingredients, the Nimex extract contains Azadirachtin in an amount of 0.1 to 10% by weight %, And the gossam extract can contain 0.1 ~ 2 wt% of Matrine, a insecticidally active ingredient. Among them, the insect repellent extract was excluded from the composition of the present composition because of its high toxicity to fish.

In the following Examples and Comparative Examples, polyoxyethylene sorbitan monolaurate was used as a surfactant.

&Lt; Example 2 >

A mixture of three plant extracts having a mixture weight ratio of deeris extract: nimus extract: gosam extract = 20:20:45 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.

&Lt; Comparative Example 1 &

A mixture of three species of plant extracts having a mixture weight ratio of. And extract: nematode extract: 1: 5: 15 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.

&Lt; Comparative Example 2 &

A mixture of three plant extracts having a blend weight ratio of the insect repellent extract: nematode: Bacillus thuringiensis = 1: 3: 3 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.

&Lt; Comparative Example 3 &

A mixture of three plant extracts having a mixture weight ratio of the insect repellent extract: Deer's extract: Oak extract = 1:20:10 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.

<Experimental Example 2>

The organic agricultural material compositions for pest management of Example 2 were diluted 1,000-fold in water to prepare a test agent. The compositions of Comparative Examples 1 and 2 were diluted 1,000 times in water to prepare a test agent, and the composition of Comparative Example 3 was diluted 750 times in water to prepare a test agent. The insecticidal effects of the above test agents were tested against the American pest insects, flower cicadas and brown winged lycopers, which are agricultural pests.

When the insect pests emerged properly from the pavement of the facility, the preliminary density was investigated, and the test agent was sprayed and the control agent was examined after 3 and 7 days. Tests were carried out in vineyards constructed according to common practice. No pesticides were sprayed on the test pavement before and after the test period, and the planting distance was 4.0 × 5.0m. The drug treatments were tested in three complete iterations. The area per test area was 20 m2. Table 2 shows the results on day 3 after the drug treatment, and Table 3 shows the results on day 7 after the drug treatment.

Control effect of Organic agricultural material composition for pest management after 3 days Test agent main ingredient Dilution multiples and
usage Control after 3 days of treatment (%) American beetle Brown winged lice Flower cicada Example 2 Deerish extract 20%
+ Nymph extract 20%
+ Ginseng extract 45% 1,000 times
(20 ml / 20 L) 82.8 82.2 44.6 Comparative Example 1 Pest control extract 3%
+ Nymph extract 15%
+ Ginseng extract 45% 1,000 times
(20 ml / 20 L) 67.0 90.7 84.6 Comparative Example 2 Pest control extract 3%
+ Nymph extract 10%
+ BT 1 ^* 10 ² 1,000 times
(20 ml / 20 L) 70.7 83.7 93.8 Comparative Example 3 Pest control extract 3%
+ Deerish extract 60%
+ Oak extract 30% 750 times
(30 ml / 20 L) 85.7 89.9 85.4 No treatment - - - - -

Control effect of organic agricultural material composition for pest management 7 days after treatment Test agent main ingredient Dilution multiples and
usage Control after 7 days treatment (%) American beetle Brown winged lice Flower cicada Example 2 Deerish extract 20%
+ Nymph extract 20%
+ Ginseng extract 45% 1,000 times
(20 ml / 20 L) 83.3 83.7 62.8 Comparative Example 1 Pest control extract 3%
+ Nymph extract 15%
+ Ginseng extract 45% 1,000 times
(20 ml / 20 L) 65.3 92.7 84.3 Comparative Example 2 Pest control extract 3%
+ Nymph extract 10%
+ BT 1 ^* 10 ² 1,000 times
(20 ml / 20 L) 77.5 87.8 94.2 Comparative Example 3 Pest control extract 3%
+ Deerish extract 60%
+ Oak extract 30% 750 times
(30 ml / 20 L) 87.5 96.0 86.7 No treatment - -  - -  -

As a result of the test for controlling the effect of the flower cicada, Comparative Example 1, Comparative Example 2 and Comparative Example 3 showed a control effect of 84.0% or more at the third treatment, whereas Example 2 showed a low control effect at 44.6%. The pest control extract was excluded from the composition components of the present disclosure because of its high toxicity to fish.

The results of the test for the effect of controlling the chemical composition of the American pest insecticide Example 2 and Comparative Example 3 showed a control effect of 82.8% or more at the third day of the treatment and 67.0% and 70.7% of Comparative Example 1 and Comparative Example 2, respectively.

The control effect of the brown wing flounder drug control was 82.2% or more on the 3rd day after the treatment, and 83.7% or more of the test drug was on the 7th day. In particular, Comparative Example 1 and Comparative Example 3 showed a high control efficacy of 92.7% and 96.0%, respectively, whereas Comparative Examples 1, 2 and 3 compositions were judged to be highly toxic to fish toxicity among organic toxins for registration of organic agricultural materials It was excluded from commercialization.

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 a deerish extract, a nim extract, and a rosemary 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 10 to 60 parts by weight of a deerish extract, 5 to 30 parts by weight of a nim extract, and 10 to 60 parts by weight of a ginseng extract. The method according to claim 1,
Wherein the surfactant is at least one selected from the group consisting of polyoxyethylene sorbitan monolaurate and its phosphate. 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. 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.