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Botanical insecticide and preparation method thereof

A plant-derived insecticide and emulsifier technology, which is applied in the field of plant-derived insecticides and their preparation, can solve the problems of unsatisfactory control effect, lack of widespread promotion, and little killing effect, and is convenient for industrial production. , Improve the insecticidal rate and low production cost

Pending Publication Date: 2019-12-20
钱坚明 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing botanical insecticides on the market are not ideal for the control of common plant pests such as leaf beetles, moths, aphids, and leafhoppers. They are only effective against one or two common plant pests, and have little effect on other plant pests. The spectrum is poor, the control effect is not good, the duration is short, and it cannot be widely promoted

Method used

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  • Botanical insecticide and preparation method thereof
  • Botanical insecticide and preparation method thereof
  • Botanical insecticide and preparation method thereof

Examples

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Effect test

Embodiment 1

[0078] A plant-derived insecticide, comprising the following raw materials by weight: 65 g of toosendanin stock solution, 2.2 g of croton oil stock solution, 5 g of limonene stock solution, 8 g of dimethyl sulfoxide, 5 g of silicone surfactant, and 0.4 g of plant emulsifier.

[0079] Wherein, the mass fraction of toosendanin in the toosendanin stock solution in this example is 1-1.5%, the mass fraction of crotonoleic acid in the croton oil stock solution in this example is 1.5-2%, and the mass fraction of limonene in the limonene stock solution in this example The score is 98%. , the purity of dimethyl sulfoxide in this example is 98%, and the silicone surfactant in this example is SilwetL77.

[0080] The preparation method of above-mentioned botanical insecticide comprises the following steps:

[0081] S1. Weighing toosendanin stock solution, croton oil stock solution, limonene stock solution, dimethyl sulfoxide, silicone surfactant, plant emulsifier in the amount of the abo...

Embodiment 2

[0085] A plant-derived insecticide, comprising the following raw materials by weight: 76g of toosendanin stock solution, 5g of croton oil stock solution, 7g of limonene stock solution, 12g of dimethyl sulfoxide, 9g of silicone surfactant, and 00.8g of plant emulsifier.

[0086] Wherein, the mass fraction of toosendanin in the toosendanin stock solution in this example is 1-1.5%, the mass fraction of crotonoleic acid in the croton oil stock solution in this example is 1.5-2%, and the mass fraction of limonene in the limonene stock solution in this example The fraction is 98%, the purity of dimethyl sulfoxide in this example is 98%, and the silicone surfactant in this example is SilwetL77.

[0087] The preparation method of above-mentioned botanical insecticide comprises the following steps:

[0088] S1. Weighing toosendanin stock solution, croton oil stock solution, limonene stock solution, dimethyl sulfoxide, silicone surfactant, plant emulsifier in the amount of the above for...

Embodiment 3

[0092] A plant-derived insecticide, comprising the following raw materials by weight: 70 g of toosendanin stock solution, 4.1 g of croton oil stock solution, 7 g of limonene stock solution, 12 g of dimethyl sulfoxide, 8 g of organic silicon surfactant, and 0.6 g of plant emulsifier.

[0093] Wherein, the mass fraction of limonene in the limonene stock solution in this example is 98%, the purity of dimethyl sulfoxide in this example is 98%, and the silicone surfactant in this example is Silwet L77.

[0094] Toosendanin stock solution in the present embodiment is prepared by the following method:

[0095] S1. Take 1 kg of Toosendan powder and 10L of 75% alcohol, put it into an ultrasonic extraction pot for extraction, separate the alcohol liquid after the extraction is completed, filter the liquid, and separate the solid and liquid to obtain the alcohol liquid;

[0096] Among them, the extraction time is 1 hour, the wavelength / frequency of ultrasonic waves is 28Hz, the power is ...

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Abstract

The invention discloses botanical insecticide and a preparation method thereof. The botanical insecticide comprises the following raw materials in parts by weight: 65 to 76 parts of toosendanin original liquid, 2 to 5.2 parts of croton oil original liquid, 4.5 to 7 parts of limonene original liquid, 8 to 13 parts of dimethyl sulfoxide, 4.5 to 10 parts of organic silicon surfactant and 0.4 to 0.8 part of plant emulsifier. The preparation method comprises the following steps: S1, weighing the toosendanin original liquid, the croton oil original liquid, the limonene original liquid, the dimethylsulfoxide, the organic silicon surfactant and the plant emulsifier according to the formula quantity; S2, adding the toosendanin original liquid, the croton oil original liquid and the limonene original liquid weighed in the step S1 into an emulsifying machine, slowly adding the organic silicon surfactant and the plant emulsifier in the emulsification process, and stirring and emulsifying for 15 to 30 minutes to obtain the botanical insecticide. The botanical insecticide provided by the invention has efficient broad-spectrum insecticidal and antibacterial effects, significant insecticidal effect and low toxicity, can be naturally degraded and avoids residue.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a botanical pesticide and a preparation method thereof. Background technique [0002] The use of chemical pesticides on food crops and economic crops is to eliminate or reduce pests and diseases and increase crop yields. 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 effect, quick effect, low price and convenient use. However, the use of chemically synthesized pesticides has also brought many well-known problems: food, soil, groundwater, rivers and lakes, oceans, and air are all severely polluted by chemical residues, and 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 chemically synthesized pesti...

Claims

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Application Information

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IPC IPC(8): A01N65/18A01N43/90A01N27/00A01P7/02A01P7/04
CPCA01N27/00A01N43/90A01N65/00A01N65/18
Inventor 钱坚明
Owner 钱坚明
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