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Photolysis-resistant pesticide and application thereof

A pesticide and photolysis technology, applied in the field of pesticides, can solve problems such as the improvement of the protective effect of photosensitive pesticides

Inactive Publication Date: 2013-04-17
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such an anti-photolysis pesticide formula may greatly improve the protective effect of photosensitive pesticides

Method used

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  • Photolysis-resistant pesticide and application thereof
  • Photolysis-resistant pesticide and application thereof
  • Photolysis-resistant pesticide and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Abamectin is recrystallized in methanol, and the content of ABa1 (ABa1 refers to one of the two main components in abamectin) before recrystallization is 81% and 84% after recrystallization, and the recrystallization effect on ABa1 content slightly increased. Prepare Abamectin standard methanol solution, ABa1 content is controlled at 100mg / L. The solution was photolyzed under the irradiation of ultraviolet light (a 18w ultraviolet lamp and a 125w sun lamp). The figure below shows the photolysis of abamectin over time.

[0053] see figure 2 , as can be seen from the figure: Abamectin degrades the fastest in the first two hours, and then relatively tends to ease. As can be seen from the figure, under the light conditions of the above-mentioned experimental conditions, the half-life of Abamectin is 2h. It is shorter than the 4-6 hours reported in the literature, because there are two kinds of lights working together. After 6 hours and 8 hours of light, the residual ra...

Embodiment 2

[0055] The abamectin standard solution prepared in Example 1 was added with the same quality (half of the abamectin quality) 56 ultraviolet absorbers or antioxidants listed in Table 1 and Table 2 respectively. Under the same light conditions as in Example 1, the ABa1 content was detected after 6 hours or 8 hours respectively.

[0056] After adding ultraviolet light absorber, no matter be water-soluble or oil-soluble ultraviolet absorber or antioxidant, can make the half-life of abamectin prolong, what have can extend to 24 hours.

Embodiment 3

[0058] The following are formulations A, B and C of 5% avermectin emulsifiable emulsion anti-photolysis pesticides. Formula A is a control sample without anti-photolysis agent, formula B is added water-soluble UV absorber and oil-soluble UV absorber and antioxidant as described in this example, and only oil-soluble UV absorber is added in formula C Agents UVA and UVB.

[0059] 5% Abamectin Cream Formula A:

[0060]

[0061] 5% Abamectin EC formula B (add the anti-photolysis pesticide ingredients described in this example):

[0062]

[0063]

[0064] 5% Abamectin EC formula C (only add oil-soluble anti-photolysis agent):

[0065]

[0066] Get above three kinds of 5% abamectin emulsifiable concentrate formulas and irradiate 8 hours, 16 hours and 24 hours by the light condition in embodiment 1, irradiate 8 hours and 16 hours again with distilled water dilution 50 times, and dilute 100 times with distilled water Post-irradiate for 8 hours. Sampling was performed af...

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Abstract

The invention relates to a photolysis-resistant pesticide and application thereof. The photolysis-resistant pesticide comprises the following components in percentages in weight: 0.1-90 percent photosensitive pesticide active ingredient, 0.2-30 percent water-soluble ultraviolet absorbent, 0.2-20 percent oil-soluble ultraviolet absorbent, 0.2-20 percent antioxidant, 1-20 percent surfactant and 4-95 percent solvent or carrier. According to the photolysis-resistant pesticide, the water-soluble ultraviolet absorbent and the oil-soluble ultraviolet absorbent are adopted for synergistic effect, and simultaneously the antioxidant is added; and therefore, at least 30 percent, even more than 50 percent, ultraviolet light can be absorbed, the photolysis-resistance of the photosensitive pesticide active ingredient can be improved, and the half-life of the pesticide can be prolonged; namely, the exposure durations of pests (bacteria, weeds or mites and the like) under the pesticide atmosphere are increased, the using effect of the pesticide is enhanced, and the use amount of the pesticide is reduced; and the photolysis-resistant pesticide can be used for preventing and controlling various pests and diseases of plants, especially crops.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a photolysis-resistant pesticide and its application. Background technique [0002] The migration, transformation and fate of pesticides in the environment are affected by biological factors and abiotic factors in the environment, among which the photochemical degradation process is particularly important in the abiotic degradation process. The photolysis of pesticides has a significant impact on pesticide residues, efficacy, toxicity and the environment, and the photochemical degradation properties of pesticides have become one of the important indicators for evaluating the ecological and environmental safety of pesticides. Especially in recent decades, the research on the photodegradation of pesticides has progressed rapidly, and the research results of photosensitizers and photoactivated products have shown important application prospects for environmental pollution control...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/22A01N43/90A01N43/70A01N57/14A01N57/16A01N53/08A01N51/00A01N47/40A01N37/50A01P1/00A01P13/00A01P7/02A01P7/04
Inventor 熊东路李谱超曹明章李广泽崔继程蔡贵忠任太军文琴
Owner SHENZHEN NOPOSION AGROCHEM
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