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CN-122004257-A - Insect repellent liquid and preparation method and application thereof

CN122004257ACN 122004257 ACN122004257 ACN 122004257ACN-122004257-A

Abstract

The invention discloses an insect repellent liquid and a preparation method and application thereof, and belongs to the technical field of biological pesticides. The insect repellent liquid is prepared by compounding 5.0% of citral, 10.0% of camellia oil, 8.0% of lemon grass essential oil, 12.0% of cinnamaldehyde, 15.0% of GL-35 and 52.0% of water according to weight percentage. The preparation method comprises the steps of raw material pretreatment, mixing and stirring, emulsification and dispersion, water dilution, filtration and filling, and is carried out at normal temperature and normal pressure in the whole process, and the preparation method is simple in process and controllable in cost. The insect repellent liquid is a biological plant source pesticide, has the characteristics of broad spectrum, high efficiency, no toxicity, no drug resistance, no residue and organic environmental protection, can effectively control various crop pests such as green worms, borers, fruit flies, aphids and the like, has the functions of bacterium removal and disease resistance, is sprayed with water 60-100 times when being used conventionally, meets the control requirements of different crops and growth periods, is convenient to store, is suitable for large-scale agricultural production, and has obvious economic and ecological benefits.

Inventors

  • LV GUORONG

Assignees

  • 吕国荣

Dates

Publication Date
20260512
Application Date
20260128

Claims (7)

  1. 1. An insect repellent liquid is characterized by comprising the following raw materials, by weight, 5.0% of citral, 10.0% of camellia oil, 8.0% of lemon grass essential oil, 12.0% of cinnamaldehyde, 15.0% of GL-35 and 52.0% of water.
  2. 2. The insect repellent liquid according to claim 1, wherein the citral purity is not less than 98%, the camellia oil is cold-pressed primary camellia oil, the active ingredient content of the lemon grass essential oil is not less than 95%, the cinnamaldehyde purity is not less than 99%, the GL-35 is a food-grade nonionic surfactant, and the water is deionized water or purified water.
  3. 3. A method for preparing the insect repellent liquid according to claim 1 or 2, comprising the steps of: (1) Raw material pretreatment, namely respectively detecting the purities of citral, camellia oil, lemon grass essential oil and cinnamaldehyde, placing GL-35 in a dry and ventilated environment for standby; (2) Mixing and stirring, namely sequentially adding citral, camellia oil, lemon grass essential oil and cinnamaldehyde into a stirring container according to weight percentage, and stirring for 15-20 minutes at a rotating speed of 300-500r/min to obtain a mixed oil phase; (3) Emulsifying and dispersing, namely slowly adding GL-35 into the mixed oil phase under continuous stirring, and stirring for 10-15 minutes at the rotating speed of 300-500r/min to form emulsion; (4) Diluting with water, namely keeping stirring, slowly adding the pretreated water into the emulsion at the speed of 50-100ml/min, and after the water addition is completed, raising the rotating speed to 600-800r/min, and continuously stirring for 20-30 min to form a uniform aqueous solution; (5) Filtering and filling, namely filtering the aqueous solution through a 0.22-0.45 mu m precision filter to obtain a finished product, and filling.
  4. 4. The method according to claim 3, wherein the stirring in steps 2, 3 and 4 is carried out at normal temperature and pressure.
  5. 5. The use of the insect repellent according to claim 1 or 2, wherein the insect repellent is a biological plant-derived pesticide for controlling green insects, borers, fruit flies, aphids, lice, red spiders, scale larvae, thrips, tea leafhoppers, and has both bacteria-removing and disease-resistant effects.
  6. 6. The application of the insect repellent according to claim 5, wherein the insect repellent is diluted 60-100 times with water and then sprayed, and the dilution concentration can be adjusted according to different crops, different growth periods and different application modes.
  7. 7. The use according to claim 5, wherein the insect repellent is not suitable for mixing with alkaline fertilizers or pesticides, is used after shaking up when layering occurs, is recommended to be sprayed in the evening of sunny days or according to the law of pest emergence, keeps the height Wen Yulou away, ensures the atomization effect when spraying to enable the liquid medicine to contact the insect bodies, and is stored in a normal-temperature, ventilated and light-resistant environment.

Description

Insect repellent liquid and preparation method and application thereof Technical Field The invention relates to the technical field of biological pesticides, in particular to an insect repellent liquid and a preparation method and application thereof. Background In agricultural production, pest infestation is one of the important factors affecting crop yield and quality. At present, most of widely used insect repellent products in the market are chemical synthetic pesticides, and the pesticides can play a role in killing and expelling insects to a certain extent, but the long-term use of the pesticides can bring a plurality of defects that firstly, the insect repellent effect of the pesticides is gradually reduced due to the fact that insect resistance is easily generated, the dosage of the pesticides is required to be increased or the varieties of the pesticides are required to be changed continuously, environmental pollution is further aggravated, secondly, the chemical pesticides have certain toxicity, residues of the chemical pesticides can be accumulated on the surfaces of crops and soil, enter human bodies through food chains and harm the health of the human bodies, thirdly, the use of the chemical pesticides can damage ecological balance, and beneficial organisms are damaged while killing the insect pests, so that the stability of a farmland ecological system is affected. In order to solve the problems, the biological plant source pesticide gradually becomes a research hot spot in the pesticide field due to the advantages of broad spectrum, high efficiency, no toxicity, no residue, difficult generation of drug resistance and the like. The botanical pesticide is prepared from active ingredients extracted from roots, stems, leaves, flowers, fruits and the like of plants, and the active ingredients are mostly natural compounds, so that the botanical pesticide is environment-friendly and relatively safe to human bodies and beneficial organisms. At present, the existing plant-source insect-repellent products have the problems of single component, limited insect-repellent range, unstable insect-repellent effect and the like, and are difficult to meet the comprehensive control demands on various pests in agricultural production. For example, part of plant-derived insect repellent liquid has control effect only on certain specific pests, has poor control effect on various common pests such as green worms, borers, fruit flies, aphids and the like, and also has the problems of unreasonable component proportion, complex preparation process and the like in the preparation process of part of products, so that the stability of the products is poor, and the duration of the drug effect is short. Therefore, the invention provides the botanical insect repellent liquid which has good synergistic effect of components, wide insect repellent range, stable effect and simple preparation. Disclosure of Invention Aiming at the problems of environmental pollution, human health hazard, easy drug resistance of pests, limited pest expelling range, unstable effect and the like of the prior plant source pest expelling products in the chemical pesticide in the prior art, the invention provides the pest expelling liquid and the preparation method and the application thereof. The insect repellent liquid is compounded by adopting various plant source active ingredients and is supplemented with an environment-friendly auxiliary agent, has the characteristics of broad spectrum, high efficiency, no toxicity, no drug resistance, no residue, organic environment protection, can effectively control various crop pests, has the functions of bacterium removal and disease resistance, is simple in preparation method, controllable in cost and suitable for large-scale agricultural production application. In order to achieve the aim of the invention, the invention adopts the following technical scheme: An insect repellent liquid comprises, by weight, citral 5.0%, camellia oil 10.0%, lemon grass essential oil 8.0%, cinnamaldehyde 12.0%, GL-35.0%, and water 52.0%. Further, the citral purity is more than or equal to 98%, the camellia oil is cold-pressed primary camellia oil, the active ingredient content of the lemon grass essential oil is more than or equal to 95%, the cinnamaldehyde purity is more than or equal to 99%, GL-35 is a food-grade nonionic surfactant, and the water is deionized water or purified water. A preparation method of an insect repellent liquid, which comprises the following steps: (1) Raw material pretreatment, namely respectively detecting the purities of citral, camellia oil, lemon grass essential oil and cinnamaldehyde, placing GL-35 in a dry and ventilated environment for standby; (2) Mixing and stirring, namely sequentially adding citral, camellia oil, lemon grass essential oil and cinnamaldehyde into a stirring container according to weight percentage, and stirring for 15-20 minutes at a rotating speed of 300-500r/min to obtai