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Dictamnus dasycarpus vegetable acaricide and preparation method thereof

A technology of white fresh skin and acaricide, which is applied in the field of acaricide and its preparation, can solve the problems of few reports of pesticide products of botanical acaricide, achieve significant acaricide effect, simple and easy extraction, chemical Effectiveness of pesticides

Inactive Publication Date: 2010-07-07
BEIJING UNIV OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research objects of botanical pesticides are mainly insects, and there are few studies on mites; in the current domestic research of the same type, many botanical insecticide products have come out, but the pesticide products of botanical acaricides have not been reported. less

Method used

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  • Dictamnus dasycarpus vegetable acaricide and preparation method thereof
  • Dictamnus dasycarpus vegetable acaricide and preparation method thereof
  • Dictamnus dasycarpus vegetable acaricide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Wash the whole plant of St. Chinensis, dry in the shade in a ventilated place, and pass through a 40-60 mesh sieve after grinding; put the crushed plant powder into a multifunctional extraction tank, and extract with petroleum ether with 5 times the volume of the plant powder. Collect the petroleum ether extract phase, concentrate under reduced pressure to obtain the extract; take 18 kg of the extract and add 70 kg of toluene, add it to a mixing kettle with a stirrer and a thermometer, mix for 1.5 hours at 50 ° C, add Tween (polysorbate) 5kg, 6-vinyl decanal 4kg, sodium lauryl sulfate 5kg, benzylphenol polyoxyethylene ether 3kg, mix homogeneously, obtain the whole plant extract of Nuxychia chinensis acaricide emulsifiable concentrate.

Embodiment 2

[0070] As in the method of Example 1, the fresh bark extract acaricide emulsifiable concentrate was prepared.

Embodiment 3

[0072] Wash the whole plant of St. Chinensis, dry it at 45°C, grind it and pass it through a 60-mesh sieve; put the crushed plant powder into a multifunctional extraction tank, extract with 4 times the volume of chloroform, and collect the chloroform for extraction. phase, concentrated under reduced pressure to obtain the extract; take 14kg of the extract, add 65kg of xylene, add it to a mixing kettle with a stirrer and a thermometer, mix for 3 hours at 60°C, add 3.5kg of polyethylene glycol, tea saponin 4kg, p-octylphenol polyoxyethylene ether 2.5kg, azone 2.5kg, mix homogeneously, obtain the whole plant extract of Nuxychia chinensis acaricide emulsifiable concentrate.

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Abstract

The invention relates to a vegetable acaricide suitable for controlling pest mites on cash crops of fruit trees, vegetables and the like and a preparation method and application thereof. The acaricide is prepared by adding a surface active agent, an emulsifying agent, a penetrating agent, a synergist and the like to the effective parts of Dictamnus dasycarpus. The acaricide has the characteristics of high efficiency, low toxicity, low residual and the like and is harmonious with the environment.

Description

[0001] The patent application of the present invention is a divisional application, the original application number is 200710178864.2, the application date is December 6, 2007, and the invention name is Nuxychnium or Dictica vegetal acaricide and its preparation method. technical field [0002] The invention relates to a pesticide and a preparation method thereof, in particular to an acaricide and a preparation method thereof. Background technique [0003] Herbivorous mites are important harmful mites in agricultural production. Due to their strong drug resistance, they cause serious losses to agricultural production and are difficult to control. The negative effects of chemical control are well known. At present, the research objects of botanical pesticides are mainly insects, and there are few studies on mites; in the current domestic research of the same type, many botanical insecticide products have come out, but the pesticide products of botanical acaricides have not be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/36A01P7/02
Inventor 王有年师光禄王燕苏学友
Owner BEIJING UNIV OF AGRI
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