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Plant extract and chemical pesticide compound pesticide and preparation method of pesticide

A technology of plant extracts and chemical pesticides, which is applied in the field of compound pesticides of plant extracts and chemical pesticides and their preparation, can solve the problems of unfavorable sustainable development of green agriculture, restrictions on popularization and application, and high development costs, and achieves reduction in the use of pesticides. The number of doses, the effect of delaying drug resistance, and reducing residues

Inactive Publication Date: 2012-09-12
NINGXIA UNIVERSITY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] Botanical pesticides have the characteristics of low toxicity, low residue, diverse biological activities, and environmental friendliness, but their development costs are high, their efficacy is low, their efficacy time is short, and their promotion and application are limited.
Chemical pesticides are still the main force in the pesticide market at home and abroad because of their fast-acting properties and ability to effectively kill pests. However, the "3Rs" and "three hazards" caused by them have seriously polluted the environment and agricultural products, and are harmful to human health. It has caused great harm and is not conducive to the sustainable development of green agriculture

Method used

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  • Plant extract and chemical pesticide compound pesticide and preparation method of pesticide
  • Plant extract and chemical pesticide compound pesticide and preparation method of pesticide
  • Plant extract and chemical pesticide compound pesticide and preparation method of pesticide

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Embodiment 1

[0015] 1. Extraction of active ingredients: Niuxinpuzi (Cynanchum komarovii, Asclepiadaceae, Cynanchum plant) whole plants (including roots, stems, leaves, seeds) are dried, crushed, and over 40 Mesh sieve to obtain Niu Xin Pu Zi dry powder.

[0016] Weigh a certain amount of Niu Xin Pu Zi dry powder into a triangular flask, add 95% ethanol with a volume fraction of eight times the weight of the dry powder, extract at room temperature for 24 hours, then sonicate for 40 minutes, and filter to obtain a filtrate. Extract 3 times and combine the 3 filtrates. The obtained extract was transferred to a ground-necked round-bottomed flask, and concentrated under reduced pressure in a water bath with a rotary evaporator, and the solvent (ethanol) was evaporated to obtain an extract of Cynanchum sibiricum for use.

[0017] 2. Preparation of tar alkali solution: Weigh 5g coal tar, add 0.6mol / L NaOH solution to dissolve it, and then use 0.6mol / L NaOH solution to make the volume to 100mL for us...

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Abstract

The invention relates to plant extract and chemical pesticide compound pesticide and a preparation method of the pesticide. The pesticide is characterized by consisting of the following ingredients in parts by weight: 1 part of brunnera extracts, 0.1 to 5 parts of abamectin, 0.1 to 3 parts of cosolvents, 0.1 to 2 parts of emulsifying agents and 0.1 to 4 parts of solvents, wherein the brunnera extracts are brunnera plant herb extracts, the cosolvents are tar base solution, the emulsifying agents are formed by mixing tween 80 and tritonX-100 according to a volume ratio being 2:8 to 8:2, and the solvents are acetone with the volume percentage being 40 to 80 percent. The plant extract and chemical pesticide compound pesticide has the advantages that the effect is obvious, the duration is longer than that of the traditional chemical pesticide, the medication times can be reduced, and the residue is reduced. The content of the chemical pesticide of abamectin in the plant extract and chemical pesticide compound pesticide is lower than the use concentration of the single preparation of the abamectin, and the goals of enhancing the efficiency and reducing the chemical pesticide consumption are reached.

Description

Technical field [0001] The invention relates to a compound pesticide of plant extracts and chemical pesticides and a preparation method thereof. Background technique [0002] Plant-derived pesticides have the characteristics of low toxicity, low residue, diverse biological activity, and environmental friendliness. However, their development costs are high, the efficacy is low, the efficacy time is short, and their promotion and application are limited. Chemical pesticides are still the main force in the domestic and foreign pesticide market due to their fast-acting properties and effective killing of pests. However, the "3R" and "three causes" caused by them have seriously polluted the environment and agricultural products, and are harmful to human health. This has caused great harm and is not conducive to the sustainable development of green agriculture. [0003] The compounding of botanical pesticides and chemical pesticides not only exerts their respective advantages, but also ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/08A01N43/90A01P7/04
Inventor 杨敏丽李建涛剡根姣郝凤霞
Owner NINGXIA UNIVERSITY
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