CN115769817B - Composition containing metrafenone - Google Patents

Composition containing metrafenone Download PDF

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Publication number
CN115769817B
CN115769817B CN202211560130.1A CN202211560130A CN115769817B CN 115769817 B CN115769817 B CN 115769817B CN 202211560130 A CN202211560130 A CN 202211560130A CN 115769817 B CN115769817 B CN 115769817B
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metrafenone
composition containing
moss
citrus
disease
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CN115769817A (en
Inventor
劳水兵
刘丽辉
邓铁军
周其峰
罗丽红
李慧玲
莫仁甫
覃国新
何洁
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Guangxi Zhuang Nationality Autonomous Region Academy of Agricultural Sciences
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Guangxi Zhuang Nationality Autonomous Region Academy of Agricultural Sciences
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Abstract

The invention belongs to the technical field of pesticides, and particularly relates to a composition containing metrafenone. The active ingredients of the composition containing the metrafenone are compounded by two elements of the metrafenone and methyl or ethyl hydroxybenzoate. After being compounded with the methyl hydroxybenzoate or the ethyl hydroxybenzoate, the metrafenone and the preparation method of the invention have a synergistic effect on the citrus moss pathogenic algae species fictive chlorella within a certain mass ratio range, and can improve the control effect on the citrus moss.

Description

Composition containing metrafenone
Technical Field
The invention belongs to the technical field of pesticides, and particularly relates to a composition containing metrafenone.
Background
In citrus orchards, it is often seen that trunks, branches, leaves and fruits, even on the ground, are covered with a layer of green "clothes", which is moss disease, the etiological agent of which is the genus fictive chlorella of the family Chlorophyta (Apatococclus lobatus). Moss is mainly damaged in the middle and lower parts of the crown, and the whole plant is damaged when serious, so that photosynthesis of the tree body and appearance and quality of fruits are seriously affected. The production is usually controlled by adopting bactericides such as mancozeb, difenoconazole, iprodione or ethylicin, and the like, and the pathogenic substances have drug resistance with long-term use of the medicines, so that the control effect is not ideal.
Benzonum is a novel bactericide of benzophenone developed by Basoff company and has the chemical name: (3-bromo-6-methoxy-2-methylphenyl) - (2, 3, 4-trimethoxy-6-methylphenyl) methanone having the structural formula:
the metrafenone is registered in a plurality of countries from 2003, has the functions of protecting, treating, eradicating and inhibiting spore production of various powdery mildew, and can strongly inhibit the germination of pathogenic bacteria spores at low concentration, and the action mechanism of the metrafenone is different from that of the currently known commercial bactericides. The research shows that the metrafenone has a certain control effect on pathogenic algae of citrus moss.
The parabens, namely the parabens, comprise methyl paraben, ethyl paraben, propyl paraben and the like, and are widely used as preservatives in daily chemical products such as foods, beverages, cosmetics, furniture, leather and the like. The parabens have a wide range of antibacterial effects on mold, yeast and bacteria, and particularly have the strongest effects on mold and yeast, and inhibit the development of mold, yeast and bacteria by acting on the activities of respiratory and electron transfer enzyme systems of microbial cells and destroying the cell membrane structures of the microorganisms.
The inventor researches that the compounding of different chemical pesticides is one of the common methods for developing new pesticides, and the inventor discovers that when the metrafenone and the methyl hydroxybenzoate or the ethyl hydroxybenzoate are compounded according to a certain mass ratio, the compound has obvious synergistic effect on the prevention and treatment of citrus moss disease pathogenic algae species fictive chlorella (Apatococclus lobatus), and no related report is found at present.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a composition containing metrafenone, which can improve the control of citrus moss and delay the generation of drug resistance of pathogenic algae compared with single dose.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the active ingredients of the composition containing the metrafenone are compounded by two elements of the metrafenone and methyl or ethyl hydroxybenzoate.
Preferably, the mass ratio of the metrafenone to the methylparaben is 1-10:5-1.
Preferably, the mass ratio of the metrafenone to the methylparaben is 8:1.
preferably, the mass ratio of the metrafenone to the ethylparaben is 1-9:15-1.
A second object of the present invention is to provide the use of the above composition for controlling citrus moss.
Compared with the prior art, the invention has the following beneficial effects:
after being compounded with the methyl hydroxybenzoate or the ethyl hydroxybenzoate, the metrafenone and the preparation method of the invention have a synergistic effect on the citrus moss pathogenic algae species fictive chlorella within a certain mass ratio range, and can improve the control effect on the citrus moss.
Detailed Description
The following detailed description of specific embodiments of the invention is, but it should be understood that the invention is not limited to specific embodiments.
Medicine effect in field: after the metrafenone is compounded, the control effect on citrus moss disease is achieved
1. Test agent
98% of metrafenone original drug, 99.5% of methyl hydroxybenzoate original drug and 99% of ethyl hydroxybenzoate original drug are all sold in the market.
Dissolving original dimethyl sulfoxide, diluting with 0.1% Tween-80 solution, and making into mother solution. And (3) setting a plurality of groups of proportions, and diluting each single-dose mother solution and each proportion mixed solution by using 0.1% Tween-80 until the mass concentration of the active ingredients is 50mg/L for later use.
2. Test method (refer to pesticide field efficacy test criterion (II) GB/T17980.98-2004: bactericide for preventing and controlling mango anthracnose).
In the Nanfeng orange orchard of the Guangxi Liuzhou Kangan county, the orange trees with consistent growth vigor, plant depression and common occurrence of orange moss disease are selected, and the identified pathogen is algae of the Chlorella genus of Chlorophyta.
The experiment set up multiple treatments, 3 replicates each, 2 fruit trees each. And (3) carrying out full-plant spraying test medicaments on all the treated citrus trees by adopting a spraying method in the moss disease occurrence period, so as to uniformly spray the front and back sides of citrus branches and leaves without dropping liquid medicine, and setting the spraying of equal amount of clear water as a blank control.
The test was run for 3 total disease surveys: the 1 st investigation is the investigation before the first application, and the common attack of the district plants is investigated; the 2 nd investigation was a 7d investigation after the first application; the 3 rd investigation was a 14d after the first administration investigation. 5 directions in the north and south of the east are investigated for each tree, 10 leaves are investigated for each direction, the total leaves and the leaf numbers of all stages of diseases are recorded and investigated, and the disease index and the prevention and treatment effect of each treatment are calculated.
3. Leaf disease classification table
See table 1.
TABLE 1 leaf disease Condition grading Table
Progression of illness state Leaf spot area
0 Leaf blade without disease spot
1 The area of the disease spots accounts for less than 10 percent of the area of the blade
3 The area of the disease spots occupies 11 of the leaf area-25%
5 The area of the disease spots accounts for 26-50% of the area of the leaf blade
7 The area of the disease spots accounts for 51-75% of the area of the leaf blade
9 The area of the disease spots accounts for more than 75 percent of the area of the blade
4. Calculation formula
5. Test results
See tables 2-3.
TABLE 2 prevention and treatment effects of metrafenone and methyl paraben on citrus moss diseases
From table 2, it can be seen that after 7d of the drug application, the metrafenone, the methylparaben and the different proportions of the metrafenone and the methylparaben gradually show a certain control effect on the citrus moss disease, and the control effect after 14d of the drug application is better than that after 7 d. When the medicine is applied for 14d, the prevention effect of the compound treatment of the metrafenone and the methyl paraben is 70.11-86.15%, and when the mass ratio of the metrafenone to the methyl paraben is 8:1, the prevention effect reaches the maximum; the prevention effect of the independent treatment of the metrafenone and the ethylparaben is lower than 86.15%.
TABLE 3 prevention and treatment effects of combination of metrafenone and ethylparaben on citrus moss disease
From table 3, it can be seen that after 7d of the drug application, the treatment of the metrafenone, the ethylparaben and the different proportions of the metrafenone and the ethylparaben gradually shows a certain control effect on the citrus moss disease, and the control effect after 14d of the drug application is better than that after 7 d. When the medicine is applied for 14d, the prevention effect of the compound treatment of the metrafenone and the ethylparaben is between 64.77 and 83.09 percent, and the prevention effect of the independent treatment of the metrafenone and the ethylparaben is lower than 64.77 percent.
In conclusion, after the metrafenone and the methyl hydroxybenzoate or the ethyl hydroxybenzoate are compounded, the synergistic effect is achieved on the citrus moss pathogenic algae species fictive chlorella within a certain mass ratio range, and the control effect on the citrus moss can be improved.

Claims (3)

1. The composition containing the metrafenone is characterized in that the active ingredients of the composition are compounded by metrafenone and methyl or ethyl hydroxybenzoate in a binary manner; the mass ratio of the metrafenone to the methylparaben is 2-8:1, a step of; the mass ratio of the metrafenone to the ethylparaben is 1-9:10-1.
2. The composition according to claim 1, wherein the mass ratio of metrafenone and methylparaben is 8:1.
3. use of a composition according to any one of claims 1-2 for controlling citrus moss.
CN202211560130.1A 2022-12-07 2022-12-07 Composition containing metrafenone Active CN115769817B (en)

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CN115769817B true CN115769817B (en) 2024-04-05

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101766217A (en) * 2009-01-07 2010-07-07 蒋娟 Quince preservative
CN103814898A (en) * 2014-03-07 2014-05-28 海南正业中农高科股份有限公司 Composition containing oligosaccharide and metrafenone
CN103858872A (en) * 2014-03-15 2014-06-18 海南正业中农高科股份有限公司 Metrafenone-containing pesticide composition
CN109329322A (en) * 2018-09-03 2019-02-15 新昌县田野泉养殖技术开发有限公司 The preparation method for the fungicide that can be purified water
EP3824733A1 (en) * 2019-11-19 2021-05-26 Minafin sprl Preservative agrochemical compositions
CN114145305A (en) * 2021-12-24 2022-03-08 广西壮族自治区农业科学院 Composition for preventing and treating citrus moss

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101766217A (en) * 2009-01-07 2010-07-07 蒋娟 Quince preservative
CN103814898A (en) * 2014-03-07 2014-05-28 海南正业中农高科股份有限公司 Composition containing oligosaccharide and metrafenone
CN103858872A (en) * 2014-03-15 2014-06-18 海南正业中农高科股份有限公司 Metrafenone-containing pesticide composition
CN109329322A (en) * 2018-09-03 2019-02-15 新昌县田野泉养殖技术开发有限公司 The preparation method for the fungicide that can be purified water
EP3824733A1 (en) * 2019-11-19 2021-05-26 Minafin sprl Preservative agrochemical compositions
CN114145305A (en) * 2021-12-24 2022-03-08 广西壮族自治区农业科学院 Composition for preventing and treating citrus moss

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