Application of a plant source light stabilizer in pesticides

A light stabilizer and biological source pesticide technology, applied in the field of pesticides, can solve problems that have not been applied to light stabilizers, and achieve the effect of delaying photolysis

Active Publication Date: 2018-08-21
INT CENT FOR BAMBOO & RATTAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These studies or patents only point out that there is a synergistic phenomenon in bamboo and wood vinegar, but they have not been clarified and applied from the perspective of light stabilizers.

Method used

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  • Application of a plant source light stabilizer in pesticides
  • Application of a plant source light stabilizer in pesticides
  • Application of a plant source light stabilizer in pesticides

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: the influence of bamboo vinegar liquid on the photolysis of thiamethoxam in water

[0014] The bamboo vinegar liquid described in the present embodiment is that the purchased bamboo vinegar stock solution is heated and vacuum-distilled in the laboratory, and the distilled liquid is collected. Taking the insecticide thiamethoxam as the pesticide to be tested, bamboo vinegar solutions of different dilutions were added to the aqueous solution of thiamethoxam, under simulated sunlight (xenon lamp, 300-800nm) and ultraviolet light (high pressure mercury lamp, 300w) The photolysis half-life of thiamethoxam in aqueous solution was detected by high performance liquid chromatography.

[0015] Table 1 Effects of different dilutions of bamboo vinegar on the photolysis of thiamethoxam under simulated sunlight (the initial concentration of thiamethoxam in the reaction solution is 30mg / L)

[0016]

[0017] It can be seen from Table 1 that under simulated sunlight, t...

Embodiment 2

[0025] Embodiment 2: the influence of wood vinegar on the photolysis of thiamethoxam in water

[0026] The wood vinegar described in this embodiment is the wood vinegar distillate purchased from the market, and the insecticide thiamethoxam is used as the pesticide for testing, and the wood vinegar of different dilution multiples is added to the aqueous solution of thiamethoxam , under the irradiation of a high-pressure mercury lamp, the photolysis half-life of thiamethoxam in aqueous solution was detected by high performance liquid chromatography.

[0027] Table 4 Effects of different dilution ratios of wood vinegar on the photolysis of thiamethoxam under a high-pressure mercury lamp light source (the initial concentration of thiamethoxam in the reaction solution is 30mg / L)

[0028]

[0029] As can be seen from Table 4, after adding wood vinegar in the aqueous solution of thiamethoxam, the photolysis half-life of thiamethoxam is extended, and when thiamethoxam is mixed with...

Embodiment 3

[0030] Embodiment 3: the influence of bamboo vinegar liquid on the photolysis of azadirachtin a in water

[0031] The bamboo vinegar liquid described in the present embodiment is that the purchased bamboo vinegar stock solution is heated and distilled in the laboratory, and the distilled liquid is collected. Taking the biological source insecticide azadirachtin a as the pesticide to be tested, bamboo vinegar solutions of different dilution multiples were added to the aqueous solution of azadirachtin a, and under the irradiation of ultraviolet light (high pressure mercury lamp, 300w), with high-efficiency liquid The photolysis half-life of azadirachtin a in aqueous solution was detected by phase chromatography.

[0032] Table 5 Effects of different dilutions of bamboo vinegar on the photolysis of azadirachtin a under high-pressure mercury lamp light source (the initial concentration of azadirachtin a in the reaction solution is 5mg / L)

[0033]

[0034] It can be seen from T...

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Abstract

The invention relates to an application of a botanical photostabilizer in pesticides and belongs to the technical field of the pesticides. The botanical photostabilizer is prepared from bamboo-wood vinegar liquid and belongs to the technical field of the pesticides. The botanical photostabilizer provided by the invention is prepared through diluting the bamboo-wood vinegar liquid or distillate thereof or the like with water by 30 to 600 times; after dilution, the bamboo-wood vinegar liquid has photostabilizer actions on both chemical pesticides and biogenic pesticides which is verified by indoor ultraviolet and simulated sunlight photodecomposition experiments. The independently-researched-and-developed bamboo-wood-vinegar-liquid botanical photostabilizer can be applied to the chemical pesticides and the biogenic pesticides, the half life of photodecomposition of the pesticides can be prolonged remarkably, and the photodecomposition of the pesticides is decelerated effectively. Compared with the prior art, the botanical photostabilizer provided by the invention is derived from plant materials, has the characteristics of good compatibility, safety, high efficiency, good optical quenching effect and the like and can be used for providing an effective photo-stabilizing action on biological pesticides or the chemical pesticides which are prone to photodecomposition, so that the application prospect is broad.

Description

technical field [0001] The invention belongs to the technical field of pesticides, in particular to a light stabilizer for pesticides. Background technique [0002] Bamboo and wood vinegar refers to raw materials such as bamboo, wood, and its processing residues or fruit shells, which are pyrolyzed under high temperature conditions to form a mixture containing acids, phenols, aldehydes, ketones and esters. A mixture of smoky, tan liquid that is light yellow or colorless after distillation. According to literature reports, bamboo and wood vinegar have the effects of regulating plant growth, inhibiting bacteria, killing insects, resisting oxidation, improving soil fertility, etc., and can be used in fields such as daily chemicals, health products, feed, beverages, medicine, and agriculture. . In addition, many scholars have carried out synergistic research on bamboo and wood vinegar. But further in-depth search shows: also there is no patent publication that bamboo and wood...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/44A01N51/00A01N61/00A01N43/90A01P7/04
CPCA01N43/90A01N51/00A01N61/00A01N65/00A01N65/44A01N2300/00
Inventor 王进宋丽岳永德汤锋
Owner INT CENT FOR BAMBOO & RATTAN
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