A botanical insecticide

A plant-derived insecticide and seed technology, applied in the field of pesticides, can solve the problems of narrow insecticidal spectrum, and achieve the effects of long-lasting effect, environmental safety and stable quality

Active Publication Date: 2016-06-29
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

But its described bitter vine root bark extract refers specifically to bitter bark vine, and Vitex chrysantha seed extract refers to natural vitexin. Although the two are compounded, they have a good control effect on piercing and sucking pests, but there are still killing effects. Narrow Spectrum Problems

Method used

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  • A botanical insecticide
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A plant-derived insecticide, which is an emulsifiable concentrate preparation, and the weight percentage of each component is: active ingredient (weight ratio of bitter bark vine seeds and Vitex chinensis seeds: 3:1), cosolvent (dimethyl sulfoxide) 5% %, emulsifier (Nongru 2201) 3%, penetrant (organic silicon) 1%, solvent (turpentine) 87%.

[0027] The preparation method is as follows: first dissolve the active ingredient with a solvent, then add other raw materials and mix evenly to obtain the emulsifiable concentrate.

[0028] Wherein, the extraction method of active ingredient is:

[0029] 1) Pulverize the seeds of Phyllostachys chinensis and the seeds of Vitex chinensis with a traditional Chinese medicine pulverizer, and cross a 60-mesh sieve;

[0030] 2) Put the sieved traditional Chinese medicine powder into a traditional Chinese medicine extraction kettle, add 3 times the weight of xylene, and extract at 60-80°C for 3 hours;

[0031] 3) Concentrate the extract ...

Embodiment 2

[0033] A plant-derived insecticidal emulsifiable concentrate, the weight percentage of each component is: active ingredient (weight ratio of bitter bark vine seeds and Vitex japonica seeds: 2:1), cosolvent (dimethyl sulfoxide) 7%, emulsifier (Nongru T-40) 3.5%, penetrant (Azone) 2%, solvent (turpentine) 80%.

[0034] The preparation method is the same as that in Example 1, except that in step 2) of the extraction method of the active ingredient, 4 times the weight of xylene of the sieved traditional Chinese medicine powder is added, and the extraction is carried out at 60-80° C. for 2 hours.

Embodiment 3

[0036] A plant-derived insecticidal emulsifiable concentrate, the weight percentage of each component is: active ingredient (weight ratio of bitter bark vine seed and Vitex japonica seed 1:1), cosolvent (ethylene glycol) 12%, emulsifier (pesticide Milk 1601 and T-60, weight ratio 1:1) 8%, penetrant (organic silicon) 3.5%, solvent (turpentine) 66.5%.

[0037] The preparation method is the same as that in Example 1, except that in step 2) of the extraction method of the active ingredient, 5 times the weight of xylene of the sieved traditional Chinese medicine powder is added, and the extraction is carried out at 60-80° C. for 2.5 hours.

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Abstract

The invention discloses a botanical insecticide, and belongs to the technical field of pesticides. The activity component of the botanical insecticide is a xylene extract of angled bittersweet seeds and five-leaved chaste tree seeds. The botanical insecticide is a preferable emulsifiable concentrate preparation, and comprises the following components in weight percent: 4-12% of active ingredient, 5-15% of a cosolvent, 3-10% of an emulsifying agent, 1-5% of a penetrant and the balance of a solvent. The botanical insecticide disclosed by the invention is high in pesticide effect, long in lasting time, capable of delaying the production of pest resistance to the insecticide, stable in quality, resistant in storage and safe to environment, and has good preventing and controlling effects on tea geometrid and cabbage caterpillars.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a botanical insecticide which uses the seeds of phalaetum and Vitex chinensis as raw materials. Background technique [0002] my country is a country with a large population and a shortage of arable land. Increasing grain production and farmers' income has always been the main goal of agricultural production. However, for agricultural production, the loss caused by crop diseases, insect pests and weeds can reach up to 70%, and 40% of the loss can be recovered through the correct use of pesticides. It can be seen that the use of pesticides to control diseases, insect pests and weeds is a necessary technical measure to reduce the production of agricultural products. As we all know, chemical pesticides have a good control effect on plant diseases and insect pests, but the environmental pollution caused by chemical pesticides and the harm to ecological balance are una...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/14A01N25/04A01P7/04
Inventor 刘雨晴董建军赵天增范毅景炳年郭唯于立芹李飞飞王伟陈飞
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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