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Chitosan oligosaccharide composition for resisting citrus canker disease as well as application and method thereof

A composition and technology of chitosan oligosaccharide are applied in the field of agricultural chemistry to achieve the effect of no pesticide residues and improved effect

Active Publication Date: 2012-03-07
HAINAN ZHENGYE ZHONGNONG HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are no pesticides and scientific and effective control methods that are both environmentally friendly and effective in preventing and treating citrus canker.

Method used

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  • Chitosan oligosaccharide composition for resisting citrus canker disease as well as application and method thereof
  • Chitosan oligosaccharide composition for resisting citrus canker disease as well as application and method thereof
  • Chitosan oligosaccharide composition for resisting citrus canker disease as well as application and method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026]Dilute the 5% chitosan oligosaccharide solution with water to the corresponding application concentration, the concentration is calculated according to the weight percentage concentration, and is calculated in ppm (parts per million) concentration in the result record, and 50ppm represents the weight percentage in the result record below The concentration is 0.005%. Water treatment was used as a control. Treat the citrus plants with the diluted solution in stages according to the requirements, the treatment method is spraying treatment with chitosan oligosaccharide aqueous solution, and the interval time of spraying treatment is 15 days. Each process is observed and detected by 20 citrus plants that can bear fruit, and the percentage of leaves of the diseased spots of each citrus diseased plant is counted respectively. Generally, a branch of a tree is used as an object of observation, as long as it produces If the characteristics of canker disease are found, the plants ...

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Abstract

The invention relates to a chitosan oligosaccharide composition for resisting a citrus canker disease as well as application and a method thereof, and in particular relates to a pesticide composition for resisting a citrus canker disease. The pesticide composition comprises chitosan oligosaccharide, wherein the weight percentage of chitosan oligosaccharide is 0.004%-0.015% of the weight of the pesticide composition. The invention also provides application of the pesticide composition containing chitosan oligosaccharide for preventing and treating the citrus canker disease. The pesticide composition containing chitosan oligosaccharide is characterized in that the weight percentage of chitosan oligosaccharide in the pesticide composition containing chitosan oligosaccharide is 0.004%-0.015%.By using the composition provided by the invention, the important problem of resisting the citrus canker disease is solved, especially, after the pesticide composition containing chitosan oligosaccharide is used for treating seeds and plants of citrus, the citrus canker disease is resisted, crops are not damaged, and no pesticide is remained.

Description

technical field [0001] The invention belongs to the field of agricultural chemistry, and in particular relates to a control composition and a control method for citrus canker, in particular to a chitosan oligosaccharide composition for resisting citrus canker and its use and method. Background technique [0002] Citrus is the world's largest fruit, and the citrus industry is the main pillar industry in southern China's rural areas. It plays an extremely important role in the adjustment of agricultural industry structure, farmers' poverty alleviation and ecological environment protection. Citrus canker is a major quarantine disease affecting citrus production in the world. It can harm dozens of Rutaceae plants. The pathogenic bacteria is the pathogenic variety of Xanthomonas citrus. The fungus can infect citrus leaves, branches, prickles, trunks and fruits, causing leaf and fruit canker spots, resulting in obvious decline in tree vigor; in severe cases, it will cause a large ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/16A01P3/00A01G13/00A01G7/06
Inventor 张善学陆红霞张余胜陈丁丁肖斌杜丽芬徐俊光
Owner HAINAN ZHENGYE ZHONGNONG HIGH TECH
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