Broad-spectrum oligosaccharide compound bactericide and application thereof

A technology for compounding fungicides and compounding agents, applied in the directions of fungicides, applications, biocides, etc., to achieve the effects of reducing pesticide residues, low price, and wide sources

Inactive Publication Date: 2017-06-09
中科禾一(大连)农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The combination of oligosaccharides and Jinggangmycin as a new type of pesticide for the control of plant diseases has not been reported in literature and patents

Method used

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  • Broad-spectrum oligosaccharide compound bactericide and application thereof
  • Broad-spectrum oligosaccharide compound bactericide and application thereof
  • Broad-spectrum oligosaccharide compound bactericide and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1 Inhibitory effect of sodium alginate oligosaccharide and Jinggangmycin compound preparation on rice sheath blight

[0019] Jinggangmycin original drug was prepared into 5 serial concentrations of 2000, 1000, 500, 250 and 125 μɡ / ml with sterile water. In addition, five series of the same concentration were prepared and 2.5μɡ / ml sodium alginate oligosaccharides were added to form a uniform solution. Prepare 0.625, 1.25, 2.5, 5, 10μɡ / ml sodium alginate oligosaccharide solutions. The mycelial growth inhibition rate of the treatment was measured by the method of inhibiting mycelial growth rate, and the EC was calculated according to the mycelial growth inhibition rate of different concentrations. 50 value.

[0020] Table 1 Toxicity of sodium alginate oligosaccharides combined with Jinggangmycin against rice sheath blight

[0021]

[0022] From the test results, it can be seen that the combination of sodium alginate oligosaccharides and Jinggangmycin has a syn...

Embodiment 2

[0023] Example 2 Field efficacy of sodium alginate oligosaccharide and Jinggangmycin compound preparation on rice sheath blight

[0024] The test was carried out in the paddy field of Xinmin District, Shenyang City, Liaoning Province. The test set up 5 treatments in total, (1) 5.0% Jinggangmycin + 2.5% sodium alginate oligosaccharide 30g / mu; (2) 5.0% Jinggangmycin + 2.5% Sodium alginate oligosaccharide 40g / mu; (3) 5.0% Jinggangmycin+2.5% sodium alginate oligosaccharide 50g / mu; (4) 5.0% Jinggangmycin 50g / mu; (5) clean water control. Each treatment was repeated 3 times. The first time the pesticide was applied at the early stage of rice sheath blight, and then sprayed once every 7-10 days. The incidence of blight was calculated to calculate the control effect.

[0025] Table 2 Control effect of sodium alginate oligosaccharide and Jinggangmycin compound preparation on rice sheath blight

[0026]

[0027]

[0028] The results of the field efficacy test of the compound prep...

Embodiment 3

[0029] Example 3 Inhibitory effect of sodium alginate oligosaccharide and Jinggangmycin compound preparation on tomato early blight, cucumber anthracnose, wheat scab and maize spot

[0030] According to the method of Example 1, sodium alginate oligosaccharides and Jinggangmycin compound preparations have the inhibitory effect on the following nine kinds of bacteria, and the EC is calculated. 50 .

[0031] Table 3 Determination of the inhibitory effect of sodium alginate oligosaccharide and Jinggangmycin compound preparation on nine kinds of pathogenic bacteria

[0032]

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PUM

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Abstract

The invention relates to a bactericide compound containing oligosaccharide. The oligosaccharide contains one or more of sodium alginate oligosaccharide, a derivative of the sodium alginate oligosaccharide, chitin oligosaccharide, a derivative of the chitin oligosaccharide, oligogalacturonide acid and a derivative of the oligogalacturonide acid as well as a broad-spectrum bactericide, namely validamycin. By mixing the two components in different proportions, a soluble compound agent is formed. The use amount of the oligosaccharide and the derivative of the oligosaccharide is 2.5%-10%, the use amount of the validamycin is 1.5%-24%, and 1%-5% of ampholytic particles is added for aiding dissolving and is diluted by 1000 times for use, and an antibacterial effect reaches 45%-95%. A preparation compounded from the oligosaccharide, the derivative of the oligosaccharide and the validamycin can preserve the original properties of high spectrum efficiency, low toxicity, safety and the like of a validamycin bactericide; and furthermore, an oligosaccharide biological pesticide is added, and the use amount of antibiotics is reduced, so that the defensive reaction of crops is increased, the yield of the crops is increased, the quality of agricultural products is improved, the application safety is enhanced, and a novel environment-friendly compound bactericide is developed.

Description

technical field [0001] The invention relates to a compound preparation of oligosaccharide or oligosaccharide derivative and fungicide Jinggangmycin and its application in preventing and treating plant pathogenic bacteria. Background technique [0002] Agriculture is the foundation of human society and economic development. Plant disease is a major factor restricting the sustainable development of agriculture. Plant disease control plays an important role in sustainable agriculture. With the abuse of chemical agricultural preparations, plant pathogens gradually mutate and increase their drug resistance, making them more rampant. Finding safe, efficient and environmentally friendly new pesticides has become a top priority. [0003] Jinggangmycin is an agricultural antibiotic successfully developed in my country in the 1970s with completely independent intellectual property rights. Jinggangmycin is a strong systemic and selective antibiotic fungicide. It is a high-efficiency,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/16A01P1/00A01P3/00
CPCA01N43/16A01N2300/00
Inventor 赵小明王文霞尹恒刘启顺
Owner 中科禾一(大连)农业科技有限公司
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