Method for reducing root-knot nematode disease of tobacco

A technology for tobacco root-knot nematodes and diseases, applied in the field of biological control of agricultural and forestry pests, to achieve the effects of improved control effects, simple operation, and strong practicability

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Problems solved by technology

[0007] The purpose of the present invention is to solve the defects of chemical control of tobacco root-knot nematode disease in the prior art, and to provide a method for reducing the occurrence of tobacco root-knot nematode disease in tobacco fields with good control effect

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  • Method for reducing root-knot nematode disease of tobacco
  • Method for reducing root-knot nematode disease of tobacco
  • Method for reducing root-knot nematode disease of tobacco

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Embodiment Construction

[0018] In the following, it will be explained in detail in conjunction with the embodiments.

[0019] The method for reducing the occurrence of tobacco root-knot nematode disease of the present invention, the method comprises the following contents:

[0020] In the technical research and development base of Yunnan Luye Biocontrol Technology Co., Ltd., the local tobacco transplanting period is mid-to-late April, and the tobacco leaf harvest ends in late August.

[0021] On September 6, two tobacco plots with soil physical and chemical structures roughly the same as the occurrence of tobacco root-knot nematode were selected. One of them covers an area of ​​23 mu, with sun and hemp in rotation; the other has an area of ​​13 mu, of which 5 mu is cropped with corn and 8 mu is not cropped. Treatment: No crop rotation treatment A: 2 mu of tobacco stalks and other residues were removed from the tobacco field; no crop rotation treatment B: 2 mu of tobacco stalks and other residues were...

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Abstract

The invention discloses a method for reducing the root-knot nematode disease of tobacco. After tobacco leaves are harvested, janapan is planted one time or two times in a crop rotation mode. After the tobacco leaves are harvested, the janapan is planted one time in the crop rotation mode from September to December of the current year or from February to April of the next year. According to the method, the janapan is used for reducing the root-knot nematode disease of the tobacco for the first time. Operation is easy, practicability is high, the control effect on the root-knot nematode disease of the tobacco is improved, and the occurrence of the root-knot nematode disease of tobacco fields is reduced.

Description

technical field [0001] The invention belongs to the technical field of biological prevention and control of agricultural and forestry pests, and in particular relates to a method for reducing the occurrence of tobacco root-knot nematode diseases by cropping sun and hemp in tobacco field rotation. Background technique [0002] Root-knot nematode is a highly specialized omnivorous plant pathogenic nematode. Root-knot nematode is an important disease of various agricultural and forestry plants such as vegetables, fruits, traditional Chinese medicine, flowers, tobacco, and fruit trees. The pathogenic nematodes are in the soil, or the larvae, adults and galls attached to the seed roots are the primary source of infection in the next year. The roots damaged by nematodes are prone to wounds, which can induce compound infection of root pathogenic fungi and bacteria, aggravating the damage. [0003] Root-knot nematodes overwinter in the soil as 2nd instar larvae and eggs. The livin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00
CPCA01G22/00
Inventor 张瑞平余伟信俊峰闫芳芳曾庆宾任伟杨建春杨军伟
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