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Prevention and control method for huanglongbing of rutaceae plants and iodine-containing composition

A plant and rue technology, applied in the directions of botanical equipment and methods, chemicals for biological control, pest control, etc., to achieve significant effects, prevention and control of drug failure and loss, and environmental safety.

Active Publication Date: 2022-04-26
ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on plant disease control

Method used

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  • Prevention and control method for huanglongbing of rutaceae plants and iodine-containing composition
  • Prevention and control method for huanglongbing of rutaceae plants and iodine-containing composition
  • Prevention and control method for huanglongbing of rutaceae plants and iodine-containing composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Example 1. Pressure perfusion device

[0062] The structure of the pressure perfusion device used in each embodiment of the present invention is as follows: figure 1 As shown in the figure, it is mainly composed of a pressure-resistant bottle 1 and a catheter 2. The bottle mouth of the pressure-resistant bottle 1 is provided with a control valve 3. The outlet of the control valve 3 is connected to one end of the catheter 2, and the other end of the infusion tube 2 is provided with There is an injection head 4, and the injection head 4 can be inserted into the tree hole on the tree trunk to input the liquid in the pressure-resistant bottle 1 into the tree.

Embodiment 2

[0063] Example 2. Field prevention and control of mildly diseased trees

[0064] 1. Test setup

[0065] Test site: A navel orange orchard in Huangsha Village, Yeping Township, Ruijin City, Ganzhou

[0066] Test time: July 2019-April 2020

[0067] Test varieties: Newhall navel oranges, 6-8 years old

[0068] Test agent and dosage: the iodine-containing composition is composed of 10 parts by weight of chitosan iodine, 5 parts by weight of potassium iodide, 5 parts by weight of potassium iodate, 10 parts by weight of dimethyl sulfoxide, and 70 parts by weight of water, and is divided into two pressure perfusion. , 30mL per plant.

[0069] Mild tree selection: First, according to the following citrus Huanglongbing disease classification standards, the Huanglongbing disease trees are divided into 5 disease grades.

[0070] Level 1: There are 5 to 6 leaves on the tree showing mottled yellowing symptoms;

[0071] Grade 2: Mottled yellowing symptoms appear on some side branches o...

Embodiment 3

[0094] Embodiment 3, to the field control of severe disease tree

[0095] 1. Test setup

[0096] Test site: A navel orange orchard in Lianjiang Village, Shazhouba Town, Ruijin City, Ganzhou

[0097] Test time: July-August 2019

[0098] Test varieties: Newhall navel oranges, 5-6 years old

[0099] Test agent and application times: the iodine-containing composition is composed of 10 parts by weight of amino acid iodine, 10 parts by weight of potassium iodide, 5 parts by weight of iodine iodide, 5 parts by weight of dimethyl sulfoxide, and 70 parts by weight of water; application times: 1 time, Dosage of medicament: 100mL, quantitatively diluted to 2000mL, and poured into two 2000mL pressure bottles on average.

[0100] Severe tree selection: According to the disease grading standard in Example 2, select 5 severe huanglongbing trees (denoted as No. 6 tree, No. 7 tree, No. 8 tree, No. 9 tree, No. 10 tree) with a disease condition of grade 4-5. ) to carry out pathogen eliminati...

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Abstract

The present invention "prevention and control method and iodine-containing composition for Huanglongbing of Rutaceae plants" belongs to plant disease control technology, comprising the following steps: drilling: drilling an infusion hole on the trunk of a plant, and the infusion hole is as deep as the xylem of the trunk; Pathogen eradication: each infusion hole is equipped with a pressure perfusion device, and the medicine is poured into the tree, and the medicine is directly conducted in the tree through systemic absorption to form an internal circulation prevention and control system; the medicine is under the action of gas pressure and tree transpiration tension Into the tree body, the active ingredient of the agent used is an iodine-containing composition. The present invention aims at Rutaceae Huanglongbing and other parasitic diseases of woody plants, and quickly transports the medicine to various parts of the tree body through pressure perfusion within 12 hours, which can completely remove the pathogen and cause little damage to the plant, and is not easy to produce drug resistance , the tree body recovers quickly, is not affected by climatic conditions, does not pollute the environment, is safe and ecological, and is easy to implement in the three provinces.

Description

technical field [0001] The invention belongs to the technology for preventing and controlling plant diseases, and in particular relates to a method for preventing and controlling huanglongbing of Rutaceae plants and an iodine-containing composition Background technique [0002] Citrus Huanglongbing is the most devastating infectious disease in citrus production in the world. It is caused by a Gram-negative bacteria that is confined to the phloem and can infect many species including citrus, aurantium, kumquat and jiuli. Rutaceae plants. Citrus Huanglongbing has occurred in more than 40 countries in Asia, Africa, North America, South America and Oceania, causing huge losses to the citrus industry around the world. The pathogenic bacterium of Huanglongbing is a Gram-negative bacterium that is exclusively parasitic on the phloem of citrus trees. It only grows in sieve tube cells, and there is no effective technique for in vitro culture, which hinders the research on the infect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G17/00A01G13/00A01G7/06A01N59/12A01N43/16A01P1/00A01P21/00
CPCA01G17/005A01G13/00A01G7/06A01N59/12A01N43/16
Inventor 胡雪芳王士奎孙昊李旭锐
Owner ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI
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