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Novel insecticidal composition and preparation method and application thereof

An insecticidal composition and a new technology, applied in the field of pesticides, can solve the problems of poor quick-acting, slow medicinal effect, low knockdown rate and the like of the root bark extract of B. Effect

Active Publication Date: 2017-05-24
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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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a kind of pesticidal composition that has good insecticidal effect, low drug cost, no residue, no pollution, safe for humans and animals, and not easy to produce drug resistance. The combined synergistic effect of two botanical pesticides can fully improve the defects of the root bark extract of Phyllostachys chinensis, such as poor quick effect, slow drug effect, and low knockdown rate. It is another purpose of the present invention to provide its preparation method and application at the same time

Method used

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  • Novel insecticidal composition and preparation method and application thereof
  • Novel insecticidal composition and preparation method and application thereof
  • Novel insecticidal composition and preparation method and application thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: Preparation of 9% bitter pepper water emulsion

[0029] A new type of insecticidal composition is a water emulsion, and its weight percentage is composed of: 8% of bitter bark root bark extract, 1% of Zanthoxylum bungeanum extract, 18% of solvent cyclohexanone, 0.6% of preservative sodium benzoate, antifreeze B 0.7% glycol, 1.6% synergist synergist, 0.6% stabilizer 1,2-butanediol, 3% emulsifier Nongru 2201 and the rest of water.

[0030] The preparation method of described novel insecticidal composition comprises the following steps:

[0031] 1) Mix the active ingredient with cyclohexanone to obtain an oil phase mixture;

[0032] 2) Mix Nongru 2201, sodium benzoate, ethylene glycol, butanoic ether, 1,2-butanediol and 1 / 2 of the amount of water to obtain a water phase mixture;

[0033] 3) Add the water phase mixture obtained in step 2) to the oil phase mixture obtained in step 1) and mix, and at the same time add the remaining water to form an oil-in-wate...

Embodiment 2

[0036] Embodiment 2: 10% bitter pepper water emulsion

[0037] A new type of insecticidal composition is an emulsion in water, and its weight percentage is composed of: 8% of the root bark extract of Phyllostachys chinensis, 2% of the Zanthoxylum bungeanum extract, 27% of the solvent cyclohexanone, and 0.8% of the preservative sodium benzoate , antifreeze ethylene glycol is 0.7%, synergist synergist 1.5%, stabilizer 1,2-butanediol is 0.6%, emulsifier Nongru 2201 is 2.5% and the balance is water.

[0038] The preparation method of the novel insecticidal composition differs 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 Stir at a high speed of r / min for 30 min.

[0039] When preparing the root bark extract of Phyllostachys chinensis, add ethanol three times the weight of the root bark powder of Phyllostachys chinensis, and ultrasonically extract at 60°C for 4h; when preparing the pepper extract: add methanol t...

Embodiment 3

[0040] Embodiment 3: 12% bitter pepper water emulsion

[0041] A new type of insecticidal composition is a water emulsion, and its weight percentage is composed of: 8% of the root bark extract of Phyllostachys chinensis, 4% of the pepper extract, 24% of the solvent cyclohexanone, and 1% of the preservative sodium benzoate , antifreeze ethylene glycol is 1%, synergist synergist 3%, stabilizer 1,2-butanediol is 0.6%, emulsifier Nongru 2201 is 5% and the balance is water.

[0042] The preparation method of the novel insecticidal composition differs from Example 1 in that: step 1) and step 2) are mixed at a speed of 1000 r / min for 10 min; step 3) is mixed at 12000 Stir at a high speed of r / min for 10 min.

[0043] The preparation of the root bark extract of the bitter vine: adding ethanol 5 times the weight of the root bark powder of the bitter vine, ultrasonically extracting at 80°C for 1h; the preparation of the pepper extract: adding methanol 6 times the weight of the pepper pow...

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Abstract

The invention provides a novel insecticidal composition which comprises the active ingredients of a celastrus angulatus root extract and a Chinese prickly ash extract. The preparation method comprises the following steps of (1) mixing the active ingredients with cyclohexanone to obtain an oil-phase mixture; (2) mixing a pesticide emulsifier 2201, sodium benzoate, ethylene glycol, piperonyl butoxide, 1,2-butanediol and 1 / 2 of water to obtain a water-phase mixture; and (3) adding the water-phase mixture obtained in the step (2) into the oil-phase mixture obtained in the step (1), and simultaneously supplementing the balance of water to form an oil-in-water type insecticidal water emulsion. Water is taken as a matrix, so that the preparation is safe to the environment, not easy to combust and convenient to store and transport; compared with a single agent, the novel insecticidal composition has the advantages of high pesticide effect and long lasting period and the pest resistance to insecticides is delayed; the novel insecticidal composition has good prevention and treatment effects on resistant aphids and phylloxera; and the active ingredients can be degraded in nature, so that the insecticidal composition has the characteristics of being good in environmental compatibility, free of residue, free of pollution, safe, environment-friendly and safe to people and animals.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a novel insecticidal composition containing bitter bark root bark extract and Zanthoxylum bungeanum extract, as well as its preparation method and application. 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 exc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/36A01P7/00A01P7/04
CPCA01N65/00A01N65/36A01N2300/00Y02A50/30
Inventor 刘雨晴范毅常霞于立芹景炳年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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