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The Application of Drugs Containing dca in Improving the Disease Resistance of Pine Trees

A disease resistance, pine tree technology, applied in the direction of application, biocide, animal repellent, etc., can solve the problems of high cost, poor control effect, environmental pollution, etc.

Active Publication Date: 2021-02-09
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of environmental pollution, high cost and poor control effect of existing pine wood nematode control methods, and to provide the application of DCA-containing medicaments in improving the disease resistance of pine trees

Method used

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  • The Application of Drugs Containing dca in Improving the Disease Resistance of Pine Trees
  • The Application of Drugs Containing dca in Improving the Disease Resistance of Pine Trees
  • The Application of Drugs Containing dca in Improving the Disease Resistance of Pine Trees

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specific Embodiment approach 1

[0007] Specific embodiment one: the application of DCA-containing medicament in improving the disease resistance of pine trees in this embodiment.

[0008] In this embodiment, the relative molecular mass of DCA is 206.022, and the molecular formula is:

[0009]

[0010] In this embodiment, it is found that after pretreatment with DCA-containing medicament (10-200 μM), the onset time of the treatment group is later than that of the control group, and the number of nematodes survived is 70.0%±7.0% of the number of nematodes survived in the control group. It indicated that the pretreatment of the chemical agent played an important role in delaying the onset of black pine and inhibiting the survival of B. xylophilus. The research and use of the agent can increase the resistance of black pine to pine xylophilus by 30.0%±7.0%, thereby interfering with the survival of the nematode and playing a vital role in controlling the colonization of the pine xylophilus.

specific Embodiment approach 2

[0011] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the preparation method of the medicament containing DCA is to dissolve the DCA reagent in dimethyl sulfoxide (DMSO) to prepare the DCA stock solution, and then use deionized water to prepare the working liquid. Others are the same as the first embodiment.

specific Embodiment approach 3

[0012] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the concentration of the working solution is 10-200 μM. Others are the same as those in Embodiment 1 or 2.

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Abstract

Application of medicament containing DCA in improving disease resistance of pine trees, the invention relates to application of medicament containing DCA in improving disease resistance of pine trees. The invention relates to the application of exogenous chemical agent 3,5-dichloroanthranilic acid (3,5-Dichloroanthranilic Acid, DCA) to induce the improvement of the resistance of black pine to pine xylophilus. The invention can improve the resistance of the black pine to 30.0%±7.0% of the pine wood nematode, thereby disturbing the survival of the pine wood nematode and playing a crucial role in controlling the colonization of the pine wood nematode. The invention is applied to the field of pine wood nematode control.

Description

technical field [0001] The invention relates to the application of DCA-containing medicament in improving the disease resistance of pine trees. Background technique [0002] Pine has become an important tree species for mountain afforestation and landscaping due to its drought resistance, barren resistance and strong adaptability, and has important ecological effects and economic value. Pine wood nematode (Bursaphelenchus xylophilus) infects pine trees, causes pine trees to wilt and die, and harms pine forests in Jiangsu, Zhejiang, Anhui and Guangdong in my country. The disease has even spread to the relatively cold Northeast region, and there is still a tendency to expand beyond its suitable habitat area, seriously threatening the health of forests and pine forest resources in my country. The control of pine wood nematode is urgent. [0003] However, most of the control methods so far, such as chemical control and mechanical control, cannot be cured and have disadvantages...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N37/44A01P21/00
CPCA01N37/44
Inventor 王峰王佳楠陈俏丽李丹蕾曹景鑫
Owner NORTHEAST FORESTRY UNIVERSITY
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