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Botanical insecticide for preventing and controlling crop pests and preparation method thereof

A plant-derived insecticide and a technology for crops, which are applied in the field of plant-derived insecticides for preventing and controlling crop pests and the field of preparation thereof, can solve the problems that affect the efficacy of the plant-derived insecticides, the weak emulsification ability of auxiliary agents, and the ineffective persistence. It can achieve high crop systemic and insecticidal activity, not easy to oxidize and volatilize, and good stability.

Inactive Publication Date: 2020-10-30
湖南博隽生物医药有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem that the existing nicotine has weak long-lasting effect and low stability during use, and conventional hydrocarbon surfactant additives have weak emulsifying ability, thus affecting the efficacy of botanical insecticides, only increasing carbon The amount of hydrogen surfactant can be effective technical problems of the efficacy of botanical insecticides

Method used

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  • Botanical insecticide for preventing and controlling crop pests and preparation method thereof
  • Botanical insecticide for preventing and controlling crop pests and preparation method thereof
  • Botanical insecticide for preventing and controlling crop pests and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] A plant-derived insecticide for preventing and controlling crop pests, which is characterized in that it comprises the following components in mass percentage: composite nicotine salt 5%, choline diphosphate / fluorocarbon surfactant 1%, non-ionic surface Active agent 5%, co-solvent 1%, water 88%.

[0038] The preparation method of the compound nicotine salt includes the following steps:

[0039] I. Preparation of organic acid mixture: natural citric acid, natural tartaric acid, glucic acid, natural malic acid and natural quinic acid are mixed uniformly to obtain an organic acid mixture;

[0040] II. Preparation of compound nicotine salt: Put the organic acid mixture obtained in step I into a stirring tank, add propylene glycol and glycerin, mix well, stir and dissolve at 50°C for 20 minutes, then add natural nicotine, stir and react for 4 hours, and cool to At room temperature, compound nicotine salt is obtained.

[0041] In the step I, the molar ratio of natural citric acid, n...

Embodiment 2

[0054] A plant-derived insecticide for preventing and controlling crop pests, which is characterized in that it includes the following components in mass percentages: 8% compound nicotine salt, 1.5% choline diphosphate / fluorocarbon surfactant, non-ionic surface Active agent 6%, co-solvent 2%, water 82.5%.

[0055] The preparation method of the compound nicotine salt includes the following steps:

[0056] I. Preparation of organic acid mixture: natural citric acid, natural tartaric acid, glucic acid, natural malic acid and natural quinic acid are mixed uniformly to obtain an organic acid mixture;

[0057] II. Preparation of compound nicotine salt: Put the organic acid mixture obtained in step I into a stirring tank, add propylene glycol and glycerin, mix well, stir and dissolve at 60°C for 25 minutes, then add natural nicotine, stir and react for 5 hours, and cool to At room temperature, compound nicotine salt is obtained.

[0058] In the step I, the molar ratio of natural citric acid...

Embodiment 3

[0071] A plant-derived insecticide for preventing and controlling crop pests, which is characterized in that it includes the following components in mass percentages: 10% composite nicotine salt, 2% choline diphosphate / fluorocarbon surfactant, and non-ionic surface Active agent 7%, co-solvent 3%, water 78%.

[0072] The preparation method of the compound nicotine salt includes the following steps:

[0073] I. Preparation of organic acid mixture: natural citric acid, natural tartaric acid, glucic acid, natural malic acid and natural quinic acid are mixed uniformly to obtain an organic acid mixture;

[0074] II. Preparation of compound nicotine salt: Put the organic acid mixture obtained in step I into a stirring tank, put in propylene glycol and glycerin, mix well, stir and dissolve at 70°C for 30 minutes, then put in natural nicotine, stir and react for 6 hours, and cool to At room temperature, compound nicotine salt is obtained.

[0075] In the step I, the molar ratio of natural cit...

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Abstract

The invention belongs to the technical field of botanical insecticides, and particularly relates to a botanical insecticide for preventing and controlling crop pests. The botanical insecticide is characterized by being prepared from the following components by mass percentage: 5-15% of a compound nicotine salt, 1-3% of choline diphosphate / fluorocarbon surfactant, 5-10% of a non-ionic surfactant, 1-5% of a cosolvent and 67-88% of water. The invention also provides a botanical insecticide for preventing and controlling crops. The botanical insecticide for preventing and controlling crop pests disclosed by the invention is strong in persistence, good in stability, efficient, safe and small in surfactant usage amount.

Description

Technical field [0001] The invention belongs to the technical field of plant-derived insecticides, and in particular relates to a plant-derived insecticide for preventing and controlling crop pests and a preparation method thereof. Background technique [0002] The use of chemical pesticides on crops is to eliminate or reduce pests and diseases. For more than half a century, people have become accustomed to the use of chemically synthesized pesticides. Chemically synthesized pesticides are widely used all over the world because of their good effects, quick effects, low price and convenient use. However, the use of chemically synthesized pesticides has also brought many well-known problems: food, soil, groundwater, rivers, lakes, oceans, and air are all seriously polluted by chemical residues, and they have side effects on non-target insects and other organisms. Lead to the destruction of the ecosystem. At the same time, the species and number of insects that are resistant to c...

Claims

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Application Information

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IPC IPC(8): A01N43/40A01N57/12A01P7/04C07F9/09C07D401/04
CPCA01N43/40A01N57/12C07D401/04C07F9/091
Inventor 万迎春邓生卫
Owner 湖南博隽生物医药有限公司