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Pesticidal composition and preparation method and application thereof

A technology of insecticidal composition and extract, which is applied in the field of insecticidal composition and its preparation, can solve the problems of poor quick-acting performance, slow drug effect, and low knockdown rate of the root bark extract of Phyllostachys chinensis, and achieve human and animal safety, pharmaceutical High efficacy and long-lasting effect

Active Publication Date: 2017-05-17
河南省科高植物天然产物开发工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of pesticidal composition containing the root bark extract of bitter bark vine root bark extract and wintergreen root extract with good insecticidal effect, low drug cost, no residue, no pollution, safe for humans and animals, and not easy to produce drug resistance. Utilizing the complementary advantages of the two botanical pesticides, it is another object of the present invention to fully improve the defects of the extract of the root bark of Phyllostachys fraternis L.

Method used

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  • Pesticidal composition and preparation method and application thereof
  • Pesticidal composition and preparation method and application thereof
  • Pesticidal composition and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0026] Embodiment 1: 5% bitter wintergreen water emulsion

[0027] A kind of insecticidal composition, is water emulsion, and its percentage by weight is composed of: 4% of bitter bark root bark extract, 1% of wintergreen root extract, 15% of cyclohexanone, 0.5% of sodium benzoate, 0.5% of ethylene glycol, 0.5% of 1,2-butanediol, 3% of Nongru 2201, and the rest is water.

[0028] The preparation method of described pesticidal composition, comprises the following steps:

[0029] 1) The oily phase is obtained by mixing the root bark extract of the bitter vine, the wintergreen root extract and cyclohexanone;

[0030] 2) Mix Nongru 2201, sodium benzoate, ethylene glycol, 1,2-butanediol and 1 / 2 of the amount of water to obtain the aqueous phase;

[0031] 3) Add the water phase to the oil phase and mix, and add the remaining water at the same time to obtain the water emulsion.

[0032] When mixing in step 1) and step 2), stir at a speed of 900 r / min for 20 min; in step 3), stir a...

Embodiment 2

[0034] Embodiment 2: 8% bitter wintergreen water emulsion

[0035] A kind of insecticidal composition, is water emulsion, and its weight percentage is composed of: 6% of bitter bark root bark extract, 2% of wintergreen root extract, 16% of cyclohexanone, 0.8% of sodium benzoate, 0.7% of ethylene glycol, 0.8% of 1,2-butanediol, 3.5% of Nongru 2201, and the rest is water.

[0036] The preparation method of the insecticidal composition is different from Example 1 in that: step 1) and step 2) are mixed at a speed of 800 r / min for 30 min; step 3) is mixed at 10000 r / min Stirring at a high speed of 30 min. When preparing the root bark extract of Phyllostachys chinensis, add ethanol with 3 times the weight of root bark powder of Phyllostachys chinensis, and ultrasonically extract at 60°C for 4 h; ℃ ultrasonic extraction for 5h. All the other are with embodiment 1.

Embodiment 3

[0037] Embodiment 3: 6% bitter wintergreen water emulsion

[0038]A kind of insecticidal composition, is water emulsion, and its percentage by weight is composed of: 4% of bitter bark root bark extract, 2% of wintergreen root extract, 24% of cyclohexanone, 0.7% of sodium benzoate, 0.6% of ethylene glycol, 0.7% of 1,2-butanediol, 3.8% of Nongru 2201, and the rest is water.

[0039] The preparation method of the insecticidal composition is different from Example 1 in that: when mixing in step 1) and step 2), stir at a speed of 1000 r / min for 10 min; in step 3) mix at 12000 r / min Stirring at a high speed of 10 min. When preparing the root bark extract of Phyllostachys chinensis, add ethanol with 5 times the weight of root bark powder of Phyllostachys chinensis, and ultrasonically extract at 80°C for 1 h; ℃ ultrasonic extraction for 3h. All the other are with embodiment 1.

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Abstract

A pesticidal composition comprises a celastrus angulatus root and bark extract and an ilex root extract as active components. A preparation method of the pesticidal composition the following steps: 1) mixing the celastrus angulatus root and bark extract, the ilex root extract and cyclohexanone to obtain an oil phase; 2) mixing a pesticide emulsifier 2201, sodium benzoate, ethylene glycol, 1, 2-butanediol and 1 / 2 of water to obtain a water phase; 3) adding the water phase into the oil phase, mixing, and adding the remaining water to obtain a water emulsion. The pesticidal composition is in form of the water emulsion, takes water as a substrate, and is safe to environment, uninflammable, and convenient to store and transport; compared with a single preparation, the pesticidal composition has the advantages as follows: the pesticidal composition is high in pesticidal effect and long in duration and delays the generation of drug resistance of pests; the pesticidal composition has a very good control effect on resistant aphids and wood louses; active components can be degraded naturally, so that the pesticidal composition has the characteristics of good environmental compatibility, no residue, no pollution, safety, environment friendliness, safety to humans and animals and the like.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to an insecticidal composition containing root bark extract of bitter bark vine and wintergreen root extract, a preparation method and application thereof. Background technique [0002] In recent years, highly toxic and high-residue chemical pesticides have become an important issue that pollutes the ecological environment, endangers food safety and public health. With people's awareness of the hazards of chemical pesticides, developed countries and some developing countries have restricted the use of toxic chemical pesticides. Many countries have formulated countermeasures to reduce the use of chemical pesticides and proposed alternative products for chemical pesticides. China is a big agricultural country, and pesticides play a very important role in my country's agricultural production. Strictly limit the use of chemical pesticides, solve the problem of excessive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/14A01N25/04A01P7/04
Inventor 刘雨晴常霞范毅景炳年于立芹王伟陈飞赵天增董建军
Owner 河南省科高植物天然产物开发工程技术有限公司
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