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Compound pesticide for preventing and controlling liberobacter asiaticum and preparation method thereof

A technology of citrus huanglongbing and medicament, which is applied in the field of plant disease prevention and control, can solve problems such as hindering citrus production, difficult fruit farmers' acceptance, citrus huanglongbing infestation, etc., to achieve good prevention and control of huanglongbing, good huanglongbing, and prevention and control of huanglongbing Effect

Active Publication Date: 2016-08-17
PLANT PROTECTION RES INST OF GUANGDONG ACADEMY OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, disease-free seedlings are not resistant to citrus greening disease, so they will still be infected by citrus huanglongbing after a period of time; although digging or cutting down diseased trees can limit the spread of the disease, it directly hinders citrus production and is difficult to be accepted by fruit farmers

Method used

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  • Compound pesticide for preventing and controlling liberobacter asiaticum and preparation method thereof
  • Compound pesticide for preventing and controlling liberobacter asiaticum and preparation method thereof
  • Compound pesticide for preventing and controlling liberobacter asiaticum and preparation method thereof

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preparation example Construction

[0018] The preparation method of the compound medicament is as follows: adding Zhongshengmycin, oxytetracycline hydrochloride, dispersant, and emulsifier into a cone mixer and mixing for 2-6 hours, and adding the mixed material to the jet mill After medium crushing, add it to the cone mixer and mix for 2 hours. After sieving with a 60-mesh standard sieve, add part of deionized water to fully stir and dissolve, and then add antifreeze, penetration enhancer, solubilizer, salicylic acid , α-naphthaleneacetic acid, after fully stirring and dissolving, centrifuge at 12000g for 30 minutes, take the supernatant and add the remaining deionized water to prepare.

[0019] The compound medicament for the prevention and control of Huanglongbing is applied by the method of tree trunk infusion.

[0020] In order to make the content of the present invention easier to understand, the technical solutions of the present invention will be further described below in conjunction with specific embo...

Embodiment 1

[0022] In April 2014, 20 citrus trees suffering from Huanglongbing were randomly selected in the Dafeng citrus field of Guangdong Province. Following the principle of random selection, 10 of them were used as the treatment group, and the trunk infusion method was used to inject drugs (Zhongshengmycin 5g, hydrochloric acid Oxytetracycline 20g, salicylic acid 50mg, α-naphthylacetic acid 200 mg, ethylene glycol 5mL, azone 5 mL, sodium lignosulfonate 5g, sodium dodecylbenzenesulfonate 5g, DMSO 5 mL, deionized water to make up 1000mL), and the other 10 plants were input with clean water as a control, and the application began on April 8, once a month, with each application of 300mL, a total of 4 infusions. Before each spraying, 20 leaf samples from different parts of the two groups of plants were collected for DNA extraction, and real-time fluorescent quantitative PCR was used to measure the changes in the number of Ct values ​​of Huanglongbing. The results are shown in Table 1 and ...

Embodiment 2

[0030] In March 2014, 20 citrus trees suffering from Huanglongbing were randomly selected in Zhongluotan Citrus Field, Baiyun District, Guangzhou City, Guangdong Province. Following the principle of random selection, 10 of them were used as the treatment group, and the trunk infusion method was used to input the medicine (Mesophyte Bacterin 20g, oxytetracycline hydrochloride 5g, salicylic acid 100mg, α-naphthaleneacetic acid 100 mg, ethylene glycol 2mL, azone 2 mL, sodium lignosulfonate 2g, sodium dodecylbenzenesulfonate 2g, DMSO 2 mL, deionized water to make up 1000 mL), and the other 10 plants were input with clean water as a control, and the application began on March 1, once a month, each application was 300 mL, a total of 3 infusions. Before each spraying, 20 leaf samples from different parts of the two groups of plants were collected for DNA extraction, and real-time fluorescent quantitative PCR was used to measure the changes in the number of Ct values ​​of Huanglongbing...

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Abstract

The invention discloses a compound pesticide for preventing and controlling liberobacter asiaticum and a preparation method thereof. According to objective requirements of prevention and control of liberobacter asiaticum, ZhongShengmycin and oxytetracycline hydrochloride are used as sterilization pesticides, salicylic acid is used as an anti-disease regulation agent and alpha-naphthalene acetic acid is used as a rooting accelerant; the materials are reasonably blended, and pesticide application is carried out by adopting a trunk infusion method, so that the advantages of the agents are complementary to each other; and the compound pesticide has the properties of high efficiency, low toxin, safety, economy and multiple functions, and can be used for preventing and controlling liberobacter asiaticum very well.

Description

technical field [0001] The invention belongs to the technical field of plant disease prevention and control, and in particular relates to a compound agent for the prevention and control of citrus huanglongbing and a preparation method thereof. Background technique [0002] Citrus is one of the most important commercial fruits in the world. my country is the main producing country of citrus. The citrus industry plays an important role in the rural society and economy of our country. At present, most of the main citrus producing areas in my country are seriously threatened by citrus Huanglongbing. Eleven of the 19 provinces and districts with citrus cultivation have suffered damage, and the affected area accounts for more than 80% of the total citrus cultivation area, and the output accounts for about 85% of the total output. Among them, 240,000 hectares of orange orchards in Guangdong Province are seriously infected with the disease, and the annual loss is tens of billions, w...

Claims

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Application Information

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IPC IPC(8): A01N47/18A01N37/44A01N37/40A01N37/10A01N25/00A01P1/00
CPCA01N25/00A01N37/10A01N37/40A01N37/44A01N47/18A01N2300/00
Inventor 程保平彭埃天宋晓兵赵弘巍凌金锋陈霞周娟
Owner PLANT PROTECTION RES INST OF GUANGDONG ACADEMY OF AGRI SCI
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