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Chitosan oligosaccharide containing composition used for killing nematodes and application and method thereof

A technology of chitosan oligosaccharide and composition, applied in the field of agricultural chemistry, can solve the problems of phytotoxicity, less nematicides, food safety, etc., and achieve the effect of improving the effect

Inactive Publication Date: 2012-03-28
HAINAN ZHENGYE ZHONGNONG HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The development of nematicides is less, and the range of options is small. Most of the existing varieties are faced with high cost, high toxicity, high residue, unsatisfactory control effect, and even phytotoxicity, environmental pollution, ecological damage, Land decline, food security and many other issues
From the perspective of the scientific development concept, the long-term use of chemical nematodes is contradictory to the sustainable development of agriculture, which makes the chemical control of root-knot nematodes face great difficulties

Method used

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  • Chitosan oligosaccharide containing composition used for killing nematodes and application and method thereof

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Embodiment 1

[0018] The 5wt% chitosan oligosaccharide solution is diluted with water to the corresponding application concentration respectively, and the concentration is calculated according to the weight percent concentration, and is calculated in ppm (parts per million) concentration in the result record, and 50ppm represents the weight percent in the result record below The concentration is 0.005%. Water treatment was used as a control. The diluted solution was used to treat cucumbers in the early stage of nematode onset in stages according to requirements, and the interval of spraying treatment was 7 days. Each treatment was observed and detected through 3 test fields (100 square meters), and the disease progression of nematodes in each test field was counted respectively. The timing of applying the chitosan oligosaccharide solution to treat nematodes is that the number of plants with insect populations eaten by nematodes accounts for 3±0.25% of the total number of cucumber plants. ...

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Abstract

The invention relates to a chitosan oligosaccharide containing composition used for killing nematodes and application and a method thereof. The invention specifically provides a pesticide composition used for killing nematodes. The pesticide composition contains chitosan oligosaccharide, wherein the chitosan oligosaccharide accounts for 0.045-0.011% of the pesticide composition by weight. The invention also provides application of the pesticide composition containing chitosan oligosaccharide in controlling nematodes and the method for controlling nematodes by applying the composition containing chitosan oligosaccharide. The composition, application and the method have the following beneficial effects: the important problem of killing nematodes is solved; and in particular, the pesticide composition containing chitosan oligosaccharide not only kills nematodes but also can not cause chemical injury on the crops and does not have pesticide residues after treating the crops suffering from nematodiasis, thus realizing environment-friendly control of nematodes.

Description

technical field [0001] The invention belongs to the field of agricultural chemistry, and in particular relates to a nematode control composition and a control method, in particular to a chitosan oligosaccharide composition for killing nematodes and its application and method. Background technique [0002] Plant parasitic nematodes harm a variety of plants, ranging from lower mosses, ferns, algae, fungi to higher gymnosperms and angiosperms. As far as the parasitic part is concerned, it can be parasitic in plant roots, young shoots, stems, leaves, flowers, seeds and fruits. In actual production, nematodes interact with certain fungi, bacteria, and viruses to cause compound infections. Therefore, to some extent, nematodes have dual or even multiple pathogenic significance. Plant-parasitic nematodes cost the world agricultural production approximately $100 billion annually. The loss caused by nematode damage in my country is as high as 23.3 billion yuan. [0003] There are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/16A01P5/00A01G13/00
Inventor 张善学陆红霞卢远倩侯华民蓝亿亿
Owner HAINAN ZHENGYE ZHONGNONG HIGH TECH
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