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Method for identifying citrus tristeza virus in field

A citrus huanglongbing, field technology, applied in fertilization methods, inorganic fertilizers, nitrogen fertilizers, etc., can solve problems such as losses, achieve the effects of reducing losses, avoiding the number of supplementary seedlings, and reducing production costs

Inactive Publication Date: 2016-06-22
广西壮族自治区农业科学院园艺研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, in many places, it is often judged whether a plant is infected with Huanglongbing in the field according to the shape of the tree and the color of the leaves (mottled, yellowing). plain, etc.) plants were also dug out, resulting in irreparable part of the loss

Method used

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  • Method for identifying citrus tristeza virus in field
  • Method for identifying citrus tristeza virus in field
  • Method for identifying citrus tristeza virus in field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for screening citrus greening disease in the field, comprising the following steps:

[0028] (1) The test sites are Lipu County and Xilin County, Guangxi (Xiping Township, Xilin County: 105°17′E, 24°19′N, 730m above sea level; Xiuren Town, Lipu County: 110°15′E, 24°N 25' above sea level 200m) Before digging out suspected Huanglong disease trees, lightly cut old diseased branches, then dig a 20cm wide x 30cm deep ditch along the drip line of the diseased tree crown, evenly sprinkle 0.7kg of fertilizer per plant, and bury the soil; in winter Fertilize once in clearing the garden, once after the second physiological fruit drop; the fertilizer includes the following components by weight: 80 parts of ammonium nitrate, 1 part of polyamino acid, 1 part of zinc sodium salt of ethylenediaminetetraacetic acid, ethylene diamine tetraacetic acid 1 part of magnesium sodium salt of amine tetraacetate, 0.15 part of iron sodium salt of EDTA, 0.10 part of manganese sodium salt ...

Embodiment 2

[0032] A method for screening citrus greening disease in the field, comprising the following steps:

[0033] (1) The test site is Longzhou County, Guangxi (106°52' east longitude, 22°22' north latitude, 263m above sea level). Before digging out the suspected Huanglong disease tree, lightly cut old diseased branches, then dig a 20cm x 30cm deep ditch along the drip line of the diseased tree crown, evenly sprinkle 1.5kg of fertilizer per plant, and bury it back with soil; clear the garden and fertilize once in winter. The fertilizer described includes the following components in parts by weight: 80 parts of ammonium phosphorus nitrate, 1 part of polyamino acid, 1 part of zinc sodium salt of edetate, 1 part of magnesium sodium salt of edetate, iron ethylenediaminetetraacetate 0.15 parts of sodium salt, 0.10 parts of edetate manganese sodium salt, 0.10 parts of indole butyric acid, 0.05 parts of carbendazim and 0.1 part of hymexazol; At the beginning of January; the second physio...

Embodiment 3

[0037] A method for screening citrus greening disease in the field, comprising the following steps:

[0038] (1) The test site is the test base of the Institute of Horticulture, Academy of Agricultural Sciences, Guangxi Zhuang Autonomous Region (108°14' east longitude, 22°51' north latitude, 96m above sea level). Before digging out the suspected huanglongbing tree, lightly cut old diseased branches, then dig a 20cm x 30cm deep ditch along the drip line of the diseased tree crown, evenly sprinkle 3kg of fertilizer per plant, and bury it back with soil. Fertilize the garden once in winter. The fertilizer includes the following components in parts by weight: 80 parts of ammonium nitrate, 1 part of polyamino acid, 1 part of ethylenediaminetetraacetic acid zinc sodium salt, 1 part of ethylenediaminetetraacetic acid magnesium sodium salt, ethylenediaminetetraacetic acid 0.15 part of iron sodium salt, 0.10 part of manganese sodium salt of edetate, 0.10 part of indole butyric acid, 0...

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Abstract

The invention belongs to the technical field of fruit tree plant disease and insect pest identification, and particularly relates to a method for identifying citrus tristeza virus in a field. The method for identifying citrus tristeza virus in the field comprises the following steps that 1, before a suspected tree suffering from citrus tristeza virus is felled or excavated, old and sick branches are gently pruned, annular ditching and fertilizer application are performed two times along a crown water drip line, burying and earthing are performed, orchard cleaning and fertilizer application are performed one time in winter, and fertilizer application is performed one time after second-time physiological fruit dropping; 2, the colors of tip leaves of three batches in spring, summer and winter are observed after fertilizer application; 3, when fruits are ripened at the end of the year, and shapes and colors of fruits are observed. The method for identifying citrus tristeza virus in advance during root fertilizer application is adopted for replacing an existing method for uniformly pruning all suspected trees suffering from citrus tristeza virus, and the method has the advantages of being safe, simple and low in cost.

Description

technical field [0001] The invention belongs to the technical field of fruit tree cultivation, and in particular relates to a method for identifying citrus greening disease in the field. Background technique [0002] Citrus Huanglongbing is a devastating disease of citrus production in the world. It is caused by a Gram-negative bacterium limited to the phloem and can infect a variety of Rutaceae plants, including Citrus, Citrus, Aurantium and Murata. . At present, the disease is mainly distributed in nearly 50 countries and regions in Asia, Africa, Oceania, South America and North America, and 11 of China's 19 citrus producing provinces (municipalities, autonomous regions) have been affected by the disease, seriously restricting citrus production. healthy development of the industry. Symptoms of trees suspected of Huanglongbing include mottled leaves, uniform yellowing of leaves, red-nosed fruit, green fruit (not turning color), and tree vigor decline. Damage to the roots...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00A01C21/00C05G3/00
CPCA01C21/005A01G17/005C05C11/00C05G3/00C05D5/00C05D9/00C05G1/00
Inventor 黄宏明王茜廖惠红陈香玲陈东奎刘要鑫李果果赵小龙张兰黄其椿赵洪涛欧智涛
Owner 广西壮族自治区农业科学院园艺研究所
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