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CN-122004258-A - Botanical pesticide and preparation method thereof

CN122004258ACN 122004258 ACN122004258 ACN 122004258ACN-122004258-A

Abstract

The invention belongs to the technical field of pesticides, and discloses a botanical pesticide and a preparation method thereof. The pesticide comprises, by weight, 1% -15% of stramonium extract, 5% -40% of keyou-hundred-cinnamaldehyde, 0.1% -10% of doramectin, 2% -20% of polyoxyethylene ether, 3% -30% of lavender liquid laundry, 10% -35% of edible ethanol, 5% -15% of stabilizer and the balance of distilled water, and the preparation method comprises the steps of respectively diluting the stramonium extract, the keyou-hundred-cinnamaldehyde and the doramectin, and then uniformly stirring and mixing all the components at 20-30 ℃. The invention realizes the broad-spectrum efficient control of chewing and piercing-sucking mouthpart pests through multi-component compounding and synergistic effect, the indoor 48-hour correction mortality rate reaches more than 95%, the 72-hour reduction rate in the field exceeds 94%, the quick-acting property and the persistent effect are achieved, the preparation is stable, the preparation is kept uniform in hard water for a long time, and layering precipitation is avoided.

Inventors

  • DAI XING
  • PENG RUNZHI

Assignees

  • 湖南九福生物科技有限公司
  • 戴星
  • 彭润芝

Dates

Publication Date
20260512
Application Date
20260130

Claims (9)

  1. 1. The botanical pesticide is characterized by comprising the following raw materials in percentage by weight: 1-15% of stramonium extract, 5-40% of keyou-hundred cinnamaldehyde, 0.1-10% of doramectin, 2-20% of polyoxyethylene ether, 3-30% of lavender liquid laundry detergent, 10-35% of edible ethanol, 5-15% of stabilizer and the balance of distilled water.
  2. 2. The botanical pesticide as claimed in claim 1, which is characterized by comprising the following raw materials in weight percent: 5% of stramonium extract, 20% of keyou-hundred-cinnamaldehyde, 2% of doramectin, 13% of polyoxyethylene ether, 15% of lavender liquid laundry detergent, 25% of edible ethanol, 10% of stabilizer and the balance of distilled water.
  3. 3. A botanical pesticide as claimed in claim 1 wherein the stabilizer is an APD complex enzyme stabilizer.
  4. 4. The botanical pesticide as claimed in claim 1, wherein the preparation method of the stramonium extract comprises the following steps: S1, raw material treatment Grinding fresh leaves and flowers of Datura into fine powder; S2, free alkaloid Mixing the fine powder with alkaline water to obtain a mixture, and standing for 20 minutes to convert the alkaloid into a free state; s3, filtering and separating Filtering and separating the mixture, discarding the filtrate, and reserving filter residues for standby; S4, ethanol reflux extraction Adding 80% ethanol into the filter residue, and heating and refluxing for 1 hour; S5, cooling Cooling, collecting distillate, adding quicklime, and baking with slow fire to dry to obtain herba Daturae extract.
  5. 5. The botanical insecticide as claimed in claim 4, wherein the aqueous alkali in step S2 is aqueous sodium hydroxide solution having a concentration of 3% and the mass to volume ratio of the fine powder to the aqueous alkali is 1 (18-20) (g/ml).
  6. 6. A method for preparing a botanical pesticide as claimed in claims 1 to 5 which comprises the steps of: (1) Diluting the Datura extract with distilled water according to weight ratio of 1 (1-3) to obtain Datura dilution; (2) Diluting the keyou bai cinnamaldehyde with a first part of edible ethanol to prepare cinnamaldehyde diluent for later use; (3) Diluting doramectin with the rest edible ethanol to obtain doramectin diluent for later use; (4) Sequentially adding the stramonium diluent in the step (1), the cinnamaldehyde diluent in the step (2), the doramectin diluent in the step (3), the polyoxyethylene ether, the lavender liquid detergent, the stabilizer and the residual distilled water into a temperature-controlled stirring barrel, continuously stirring for 2-4 hours at 20-30 ℃, uniformly mixing, and filling to obtain the botanical pesticide.
  7. 7. Use of a botanical pesticide as claimed in claims 1 to 5 in the manufacture of a pesticide formulation.
  8. 8. The use of claim 7, wherein the pesticide formulation comprises one of an emulsifiable concentrate, a wettable powder, a water dispersible granule, an aqueous emulsion or a suspoemulsion suitable for agricultural use.
  9. 9. The use according to claim 7 or 8, wherein the insect is a chewing or piercing-sucking pest.

Description

Botanical pesticide and preparation method thereof Technical Field The invention relates to the technical field of pesticides, in particular to a botanical pesticide and a preparation method thereof. Background In current agricultural production, the proportion of chemically synthesized pesticides is up to 95%, and long-term mass application has raised serious environmental and health problems. The pesticide residue easily causes that the heavy metals in air and water areas exceed the standard, so that the agricultural ecological balance is destroyed, the quality of agricultural products is reduced, high-pesticide-residue crops are not favored by the market, and potential risks are brought to the health of consumers. In addition, the unreasonable use of chemical pesticides also leads to increasingly enhanced drug resistance of pests, forcing farmers to continuously increase the drug application dosage, forming a vicious circle with increased drug application dosage and stronger drug resistance, and further aggravating environmental pressure and production cost. Meanwhile, the existing biological and plant-source pesticide has the advantages of environmental friendliness and low residue, but short plates with poor insecticidal effect and unstable control effect are commonly existed, so that the requirements of farmers on efficient control of plant diseases and insect pests are difficult to meet, and the agricultural yield and income are directly influenced. In addition, the traditional pesticide also has the problem of narrow insecticidal spectrum, most can only aim at single type of oral pests, cannot give consideration to the comprehensive control of multiple types of pests, and increases the medication cost and complexity of peasants. Therefore, the development of a botanical pesticide which has the characteristics of safety, no toxicity, high insecticidal efficiency, broad spectrum adaptation, low cost and no pesticide residue becomes an urgent need in the current agricultural field. Disclosure of Invention In view of the above, the invention provides a botanical pesticide and a preparation method thereof, which aim to solve the problems that the existing chemical pesticide pollutes the environment, pesticide residues exceed standards, and the traditional botanical pesticide has poor insecticidal effect and narrow insecticidal spectrum, and realize safe and efficient agricultural pest control. The technical scheme provided by the invention is as follows: In a first aspect, the application provides a botanical insecticide, which is prepared from the following raw materials in percentage by weight: 1-15% of stramonium extract, 5-40% of keyou-hundred cinnamaldehyde, 0.1-10% of doramectin, 2-20% of polyoxyethylene ether, 3-30% of lavender liquid laundry detergent, 10-35% of edible ethanol, 5-15% of stabilizer and the balance of distilled water. Further, a botanical insecticide consists of the following raw materials in percentage by weight: 5% of stramonium extract, 20% of keyou-hundred-cinnamaldehyde, 2% of doramectin, 13% of polyoxyethylene ether, 15% of lavender liquid laundry detergent, 25% of edible ethanol, 10% of stabilizer and the balance of distilled water. Further, the preparation method of the stramonium extract comprises the following steps: S1, raw material treatment Grinding fresh leaves and flowers of Datura into fine powder; S2, free alkaloid Mixing the fine powder with alkaline water to obtain a mixture, and standing for 20 minutes to convert the alkaloid into a free state; s3, filtering and separating Filtering and separating the mixture, discarding the filtrate, and reserving filter residues for standby; S4, ethanol reflux extraction Adding 80% ethanol into the filter residue, and heating and refluxing for 1 hour; S5, cooling Cooling, collecting distillate, adding quicklime, and baking with slow fire to dry to obtain herba Daturae extract. In the step S2, the alkaline water is sodium hydroxide aqueous solution with the concentration of 3 percent, and the mass volume ratio of the fine powder to the alkaline water is 1 (18-20) (g/ml). Further, the stabilizer is an APD complex enzyme stabilizer. In a second aspect, the present application provides a method for preparing a botanical insecticide as described above, comprising the steps of: (1) Diluting the Datura extract with distilled water according to weight ratio of 1 (1-3) to obtain Datura flower diluent; (2) Diluting the keyou bai cinnamaldehyde with a first part of edible ethanol to prepare cinnamaldehyde diluent for later use; (3) Diluting doramectin with the rest edible ethanol to obtain doramectin diluent for later use; (4) Sequentially adding the stramonium diluent in the step (1), the cinnamaldehyde diluent in the step (2), the doramectin diluent in the step (3), the polyoxyethylene ether, the lavender liquid detergent, the stabilizer and the residual distilled water into a temperature-controlled stirring barrel, continuously stirri