Formula and preparation method of botanical insecticide

Abstract

The invention discloses a formula and a preparation method of a botanical insecticide. The mosquito-repellent liquid is prepared by mixing vitex negundo, radix stemonae, little pepper, orange peel essential oil, lavender laundry detergent, edible ethanol, maltodextrin and distilled water according to a specific weight percentage. The raw materials are all natural, the vitex negundo elements are selected from fruits, leaves and stems of vitex negundo, the radix stemonae is prepared by processing specific radix stemonae tuberous roots, the pungency degree of the small peppers reaches more than 3000 history Vills, and the orange peel essential oil is extracted from orange peel. The insecticide is natural and environment-friendly, can be quickly decomposed in the natural environment after being used, and reduces negative effects on the ecological environment. The components are diverse and efficient, various natural substances have a synergistic effect, and the insecticidal spectrum is expanded. The composition is high in safety, low in toxicity to human and livestock and less in pesticide residue. The preparation process is scientific, and stable product quality is guaranteed through fine treatment of raw materials, specific sequence mixing and precise control of stirring conditions. Part of the raw materials are wide in source, low in cost, convenient to use and high in cost performance, meet the green and environment-friendly agricultural development concept and have wide application prospects.

Description

Technical Field

[0001] The invention relates to a formula and a preparation method of a botanical insecticide. Background Art

[0002] Pesticide residues have become a significant factor affecting food quality. While traditional synthetic pesticides offer advantages such as high efficiency, broad spectrum, and long-lasting effects, they also suffer from drawbacks such as high toxicity and the development of resistance. Therefore, finding safe and effective alternatives is a pressing need.

[0003] In recent years, with the advancement of science and technology and growing environmental awareness, more and more people have begun to pay attention to the research and development of biopesticides. Currently, biopesticides sold on the market are mainly divided into two categories: one is fungicides based on microorganisms; the other is insecticides based on plant extracts. The latter are highly favored due to their low toxicity and pollution-free properties. However, existing botanical insecticides still have some shortcomings: first, their active ingredient content is low (generally no more than 10%), resulting in unsatisfactory effectiveness; second, most of these products can only control certain specific types of pests and cannot be widely used in agricultural production; third, due to the lack of scientific and reasonable production processes and technical support, these products have high production costs and poor stability.

[0004] Thrips are a common and widespread pest. They frequently infest cucurbits, fruits, vegetables, and flowers. Thrips reproduce rapidly, with overlapping generations. They are prone to developing resistance to chemical pesticides, making their control increasingly difficult. The use of chemical pesticides increases pesticide residues in agricultural products, severely polluting the air and water ecosystems, and impacting human health and safety.

[0005] In order to overcome the defects in the prior art, the present invention is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a formulation and preparation method of a botanical insecticide to solve the problems raised in the above background technology.

[0007] To solve the above technical problems, the present invention provides a technical solution: a botanical insecticide, which is prepared by mixing the following raw materials in percentage by weight: 2%-20% of vitexin; 1%-18% of stemona root; 1%-15% of chili pepper; 2%-24% of orange peel essential oil; 1%-25% of lavender laundry detergent; 2%-30% of edible ethanol; 1%-15% of maltodextrin; and 5%-50% of distilled water.

[0008] Preferably, the vitexin is a natural substance extracted from the fruit, leaves and stems of Vitex negundo and contains volatile oils, flavonoids, iridoid glycosides, lignans and terpenes.

[0009] Preferably, the Stemona radix is ​​made from the tubers of Stemona erecta, Stemona creeping or Stemona anterofolia.

[0010] Preferably, the chili pepper is a chili pepper with a spiciness of 3000 Scoville or above.

[0011] Preferably, the orange peel essential oil is extracted from orange peel.

[0012] The preparation method of the above-mentioned plant-based insecticide includes the following steps: grinding the stemona radix into a powder with a size of more than 200 mesh using a grinder; grinding chili peppers with a spiciness of more than 3000 Scoville degrees using a grinder into a powder with a size of more than 200 mesh; mixing vitexin with distilled water at a ratio of 1:3 for later use; mixing chili powder with distilled water at a ratio of 1:3 for later use; mixing the stemona radix with ethanol at a ratio of 1:4 for later use; pouring the vitexin aqueous solution, the stemona radix solution, the chili pepper aqueous solution, and the maltodextrin aqueous solution into a blender in order, stirring with an interval of about 10 minutes between adding each plant, stirring for 150 minutes, controlling the pH value between 6.5 and 7.5, standing for 120 minutes, and testing. If the product quality meets the standard, it is filled.

[0013] Preferably, the raw material ratio of the botanical insecticide is: 6% vitexin; 6% stemona root; 5% chili pepper; 10% orange peel essential oil; 12% lavender laundry detergent; 24% edible ethanol; 4% maltodextrin; and 33% distilled water.

[0014] Preferably, during the stirring process, the stirrer used is a stainless steel stirrer with speed and temperature control functions, the stirring speed is controlled at 50-100 rpm, and the temperature is controlled at 20-30°C.

[0015] Vitexin: Molecular formula: C 20 H 24 O 62, Vitexin is a natural substance extracted from the fruit, leaves, and stems of Vitex negundo. It primarily contains volatile oils, flavonoids, iridoid glycosides, lignans, and terpenes. These volatile oils and terpenes can interfere with the growth, development, and reproduction of pests, and when mixed with other substances, can rapidly kill them.

[0016] Stemona: Molecular formula: C4H6O 31, Molecular weight: 118.093. Stemona is a substance processed from the tuberous roots of Stemona erecta and Stemona creeping. The alkaloids in Stemona inhibit the nerve cells of pests, causing them to fail and die.

[0017] Chili pepper: Molecular formula: C 22 H 26 O5, molecular weight: 370.439. Capsicum annuum is the fruit of a herbaceous plant, rich in chemicals such as capsaicin and capsanthin. Its intensely spicy flavor can quickly kill pests. Its insecticidal effects are particularly potent when combined with vitexin and stemona radix.

[0018] Orange peel essential oil (pesticide adjuvant, penetrant) is extracted from orange peel. Its main components include limonene, lemon balm, citronella oil, etc.

[0019] Lavender laundry detergent (pesticide adjuvant, surfactant).

[0020] Maltodextrin (pesticide adjuvant, stabilizer) is a white or slightly yellowish amorphous powder. It is a polysaccharide food raw material and a low-conversion product between starch and sugar.

[0021] The advantages of the present invention are: natural and environmentally friendly: the main raw materials of the botanical insecticide, such as vitexin, stemona root, chili pepper, and orange peel essential oil, are all derived from natural plants. Vitexin is extracted from the fruit, leaves, and stems of Vitex negundo; stemona root is processed from the tuberous roots of stemona erecta, stemona creeping, or stemona anterophylla; chili pepper is a natural variety with a Scoville spiciness of over 3000; and orange peel essential oil is extracted from orange peel. After use, these natural raw materials can decompose more quickly in the natural environment than chemically synthesized insecticides, reducing pollution to soil, water sources, and air, greatly minimizing the negative impact on the ecological environment, and conforming to the development concept of modern green and environmentally friendly agriculture.

[0022] Diverse and Effective Ingredients: The formula's multiple active ingredients work synergistically. Vitexin contains a variety of natural substances, including volatile oils, flavonoids, iridoid glycosides, lignans, and terpenes. Each of these ingredients possesses varying degrees of insecticidal activity, acting in various ways against pests, such as disrupting their nervous system and respiratory metabolism. Stemona tuberosa and chili peppers also possess unique insecticidal properties that can repel and poison pests. This diverse combination of ingredients broadens the insecticidal spectrum and enhances efficacy, effectively controlling a wide range of common pests.

[0023] Highly safe: Its natural ingredients are less toxic to humans and animals than chemical pesticides. During use, it effectively reduces health risks to applicators and lowers the likelihood of poisoning from accidental ingestion or contact. Furthermore, auxiliary ingredients such as edible ethanol, maltodextrin, and distilled water further enhance product safety. Furthermore, its low insecticide residues can reduce pesticide residues in agricultural products, ensuring food safety and giving consumers greater peace of mind.

[0024] Scientific preparation process: During the preparation process, the raw materials are carefully processed. Grinding the stemonae and chili peppers into powders with a mesh size of 200 or more can increase their contact area with other ingredients, making the reaction more complete and the effective ingredients better able to dissolve and exert their effects. In the mixing step, the vitexin aqueous solution, stemonae solution, chili pepper aqueous solution, maltodextrin aqueous solution, etc. are added in a specific order, with an interval of about 10 minutes between each plant material, and stirring for 150 minutes. This orderly and sufficient stirring process helps to evenly mix the various ingredients and form a stable system. At the same time, the pH value is controlled between 6.5-7.5. The appropriate pH environment is conducive to maintaining the stability and activity of the various ingredients. In addition, a stainless steel mixer with speed and temperature control functions is used during the stirring process. The stirring speed is controlled at 50-100 rpm and the temperature is controlled at 20-30°C. The precise temperature and speed control avoids the inactivation of ingredients or deterioration of product quality due to excessive stirring or inappropriate temperature, ensuring the stability and consistency of product quality.

[0025] Economical and practical: Some ingredients in the formula, such as chili peppers and orange peel (used to extract orange peel essential oil), are widely available and relatively inexpensive. Furthermore, through a scientifically optimized formulation, production costs are reduced while ensuring effective insecticide control. Furthermore, the insecticide is easy to use and requires only conventional pesticide application methods, eliminating the need for specialized equipment and techniques. It offers a high cost-effectiveness.

[0026] Replacing chemical pesticides with plant-based pesticides can effectively kill pests, reduce pesticide costs, and improve the quality and yield of agricultural products. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is the molecular structure diagram of vitexin.

[0028] Figure 2 It is a diagram of the molecular structure of 100 parts.

[0029] Figure 3 This is the molecular structure diagram of chili pepper. DETAILED DESCRIPTION

[0030] For the purpose of the following detailed description, it should be understood that the present invention may adopt various alternative variations and step sequences, unless expressly provided otherwise. In addition, except in any operating examples, or when otherwise indicated, all numerals representing the amount of the components used in the specification and claims should be understood to be modified by the term "about" in all cases. Therefore, unless otherwise indicated, the numerical parameters set forth in the following specification and the appended claims are approximate values ​​that vary according to the desired performance to be obtained by the present invention. At least, it is not intended to limit the application of the doctrine of equivalents to the scope of the claims, and each numerical parameter should at least be interpreted according to the number of reported significant figures and by applying ordinary rounding techniques.

[0031] Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the invention are approximations, the numerical values ​​set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contains certain errors necessarily resulting from the standard deviation found in their respective testing measurements.

[0032] Furthermore, it should be understood that any numerical range recited herein is intended to include all subranges subsumed therein. For example, a range of "1 to 10" is intended to include all subranges between (and including) the recited minimum value of 1 and the recited maximum value of 10, i.e., having a minimum value equal to or greater than 1 and a maximum value equal to or less than 10.

[0033] Example 1: 8 grams of vitexin were added to 24 grams of water and stirred thoroughly for later use; 8 grams of stemona root were added to 32 grams of edible ethanol and stirred thoroughly for later use; 12 grams of orange peel essential oil, 12 grams of lavender laundry detergent, and 4 grams of maltodextrin were added to a glass and stirred. The mixture was stirred for 150 minutes and then allowed to stand for 60 minutes. Around 6:00 PM, a thrips killing test was conducted in the field. The mixture was diluted with 500 times the water and sprayed on beans in the field. Inspection at 8:00 AM the next day showed a 56% thrips mortality rate.

[0034] Example 2: 10 grams of Stemona tuberosa were added to 40 grams of ethanol and stirred thoroughly. 6 grams of chili powder were added to 18 grams of water and stirred thoroughly. 10 grams of orange peel essential oil and 12 grams of lavender laundry detergent were added. 4 grams of maltodextrin were added to a glass and stirred sequentially. After stirring for 150 minutes, the mixture was allowed to stand for 60 minutes. The insecticide was then tested for insecticidal activity. The mixture was diluted with 500 times the water and evenly sprayed on thrips, a pest in the field. The mortality rate of the thrips was 77%.

[0035] Example 3: Take 6 grams of vitexin, add 18 grams of water, and stir thoroughly. Take 6 grams of Stemona tuberosa powder, add 24 grams of edible ethanol, and stir thoroughly. Take 5 grams of chili powder, add 15 grams of water, and stir thoroughly. Take 10 grams of orange peel essential oil, 12 grams of lavender laundry detergent, and 4 grams of maltodextrin. Add the above ingredients to a glass and stir. After stirring for 150 minutes, let it stand for 60 minutes. Then, test the insecticide. Add 500 times the water and evenly spray the mixture on the thrips pest on the beans in the field. The next morning, the results of the inspection showed a 98% mortality rate of the thrips pest.

[0036] Example 4:

[0037] Take 10 grams of vitexin and add 30 grams of water, stirring thoroughly. Take 4 grams of stemona root and add 16 grams of ethanol, stirring thoroughly. Take 8 grams of orange peel essential oil, 15 grams of lavender laundry detergent, and 6 grams of maltodextrin. Add these ingredients to a glass, stirring for 150 minutes, then let it sit for 60 minutes. At 5:00 PM, conduct a field aphid control test. Dilute the solution 400 times with water and spray it on cabbage plants. Check at 9:00 AM the next day, and the aphid mortality rate is 62%.

[0038] Embodiment 5:

[0039] Take 12 grams of Stemona tuberosa and add 48 grams of ethanol, stirring thoroughly. Add 8 grams of chili powder to 24 grams of water and stirring thoroughly. Add 14 grams of orange peel essential oil, 10 grams of lavender laundry detergent, and 3 grams of maltodextrin to a glass and stir. After stirring for 150 minutes, let the mixture stand for 60 minutes. Then, test the insecticide. Add 600 times the water concentration and evenly spray the mixture on cucumbers in the field against the whitefly pest. Check at 7 a.m. the next day, and the whitefly mortality rate is 80%.

[0040] Example 6:

[0041] Take 4 grams of vitexin and add 12 grams of water, stirring thoroughly. Take 8 grams of Stemona tuberosa powder and add 32 grams of ethanol, stirring thoroughly. Take 3 grams of chili powder and add 9 grams of water, stirring thoroughly. Add 6 grams of orange peel essential oil, 18 grams of lavender laundry detergent, and 5 grams of maltodextrin to a glass and stir. After stirring for 150 minutes, let the mixture stand for 60 minutes. Then, test the insecticide. Add 450 times the water concentration and evenly spray the mixture on eggplants grown in the field against the cotton bollworm pest. The next morning, the results showed a 75% mortality rate for the cotton bollworm.

[0042] Embodiment seven:

[0043] Take 12 grams of vitexin and add 36 grams of water, stirring thoroughly. Take 6 grams of Stemona tuberosa and add 24 grams of ethanol, stirring thoroughly. Take 16 grams of orange peel essential oil, 8 grams of lavender laundry detergent, and 2 grams of maltodextrin. Add these ingredients to a glass and stir. Stir for 150 minutes, then let it sit for 60 minutes. At 4:00 PM, conduct a field test to kill cabbage ants. Dilute the solution 550 times with water and spray it on cabbage. Check at 10:00 AM the next day, and the ants mortality rate is 85%.

[0044] Embodiment 8:

[0045] Take 14 grams of Stemona tuberosa and add 56 grams of ethanol, stirring thoroughly. Add 10 grams of chili powder to 30 grams of water and stirring thoroughly. Add 18 grams of orange peel essential oil, 6 grams of lavender laundry detergent, and 7 grams of maltodextrin to a glass and stir. After stirring for 150 minutes, let the mixture stand for 60 minutes. Then, test the insecticide. Add 500 times the water concentration and evenly spray the mixture on tomato plants in the field against the leafminer pest. Check at 8 a.m. the next day, and the leafminer mortality rate is 90%.

[0046] Comparative Example 1: Chemical Pesticide Control Group

[0047] A common commercially available chemical thrips insecticide was diluted and used according to the recommended dosage in the product instructions. This chemical insecticide, which primarily contains synthetic substances such as lambda-cyhalothrin, works by inhibiting sodium ion channels in the insect's nervous system, leading to excessive excitement and death.

[0048] Comparative Example 2: Single Raw Material Control Group

[0049] Only vitexin was used for the insecticidal experiment. Take 8 grams of vitexin, add 24 grams of water, stir well, and dilute it 500 times with water. Then, spray it on the pest thrips on beans in the field at around 6 pm. The experimental environment and operation are the same as in Example 1. Although vitexin has certain insecticidal activity, a single ingredient may not be able to fully address the various defense mechanisms of pests.

[0050] Comparative Example 3: Simple raw material mixed control group

[0051] Take 8 grams of vitexin, 8 grams of stemona root, and 6 grams of capsicum, directly mix them and add 500 times of water, without going through a complicated preparation process, and spray them on the pest thrips on beans in the field at around 6 pm. The experimental environment and operation are the same as in Example 1. This simple mixing may not allow the raw materials to fully exert their synergistic effect.

[0052] The comparison table of the embodiment and the comparative example is as follows Table 1

[0053] Table 1

[0054]

[0055]

[0056] Data Analysis

[0057] Analysis of insecticide effect

[0058] In terms of initial insecticide efficacy, the chemical insecticide Comparative Example 1 achieved a high initial mortality rate against thrips, reaching 90%. However, over time, pests developed resistance, and the effectiveness declined significantly. While some initial data for the botanical insecticides in Examples 1 to 3 were lower than those of the chemical insecticides, as the experiment progressed, the mortality rate against thrips reached 98%, as in Example 3. Furthermore, with long-term use, pests were less likely to develop resistance.

[0059] Comparing the single-ingredient Comparative Example 2 with the simple mixture of ingredients in Comparative Example 3, the botanical insecticide examples, through their scientific proportions and preparation processes, achieve a synergistic effect among the various ingredients, resulting in significantly superior insecticidal efficacy compared to treatments using either a single ingredient or a simple mixture. For example, the thrips mortality rate in Comparative Example 2, treated with vitexin alone, was only 30%, while the mortality rate in Comparative Example 3, treated with the simple mixture, was 40%, significantly lower than the efficacy of the botanical insecticide examples.

[0060] Environmental analysis

[0061] After using the chemical pesticide in comparative example 1, soil microbial activity was suppressed, and chemical residues were detected in surrounding water sources, causing significant negative impacts on the ecological environment. However, after using the botanical pesticides in each example, soil microbial activity was slightly increased, and the water quality of surrounding water sources remained unchanged, demonstrating their natural and environmental advantages.

[0062] Use Security Analysis

[0063] The chemical pesticide comparative example 1 caused the applicator to experience mild dizziness, nausea, and other discomfort symptoms, indicating that it is somewhat toxic to humans and animals. However, the applicators of the botanical pesticides in the examples showed no discomfort, indicating that they are less toxic to humans and animals and are highly safe to use.

[0064] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A botanical insecticide, characterized in that: The invention is prepared by mixing the following raw materials in percentage by weight: 2%-20% of vitexin; 1%-18% of stemona root; 1%-15% of chili pepper; 2%-24% of orange peel essential oil; 1%-25% of lavender laundry detergent; 2%-30% of edible ethanol; 1%-15% of maltodextrin; and 5%-50% of distilled water.

2. The botanical insecticide according to claim 1, characterized in that The vitexin is a natural substance extracted from the fruit, leaves and stems of Vitex negundo and contains volatile oils, flavonoids, iridoid glycosides, lignans and terpenes.

3. The botanical insecticide according to claim 1, characterized in that The Stemona radix is ​​made from the tubers of the erect Stemona radix, creeping Stemona radix or opposite-leaf Stemona radix.

4. The botanical insecticide according to claim 1, characterized in that The chili peppers are chili peppers with a spiciness of 3000 Scoville or more.

5. The botanical insecticide according to claim 1, characterized in that The orange peel essential oil is extracted from orange peel.

6. A method for preparing the botanical insecticide according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: grinding the stemonae into powder with a size of more than 200 meshes using a grinder; grinding chili peppers with a spiciness of more than 3000 Scoville degrees using a grinder into powder with a size of more than 200 meshes; mixing vitexin with distilled water at a ratio of 1:3 for later use; mixing chili powder with distilled water at a ratio of 1:3 for later use; mixing the stemonae with ethanol at a ratio of 1:4 for later use; and pouring the vitexin aqueous solution, the stemonae solution, the chili pepper aqueous solution, and the maltodextrin aqueous solution into a blender in order, stirring them, with an interval of about 10 minutes between adding each plant, stirring for 150 minutes, controlling the pH value between 6.5 and 7.5, standing for 120 minutes, and testing. If the product meets the quality standards, it will be packaged.

7. The preparation method according to claim 6, characterized in that The raw material ratio of the botanical insecticide is: 6% of vitexin; 6% of stemona root; 5% of chili pepper; 10% of orange peel essential oil; 12% of lavender laundry detergent; 24% of edible ethanol; 4% of maltodextrin; and 33% of distilled water.

8. The preparation method according to claim 7, characterized in that During the stirring process, the mixer used is a stainless steel mixer with speed regulation and temperature control functions. The stirring speed is controlled at 50-100 rpm and the temperature is controlled at 20-30°C.

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