CN117044723A - Synergistic composition for preventing and treating mango anthracnose - Google Patents

Synergistic composition for preventing and treating mango anthracnose Download PDF

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Publication number
CN117044723A
CN117044723A CN202310832579.7A CN202310832579A CN117044723A CN 117044723 A CN117044723 A CN 117044723A CN 202310832579 A CN202310832579 A CN 202310832579A CN 117044723 A CN117044723 A CN 117044723A
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compound
prochloraz
mancozeb
enol
synergistic composition
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Inventor
赵英
付海天
黄国弟
唐玉娟
罗燕春
李日旺
张宇
唐莹莹
彭鹏
冉梦阳
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Guangxi Subtropical Crops Research Institute
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Guangxi Subtropical Crops Research Institute
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
    • A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
    • A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
    • A01N43/16—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero atom
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
    • A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
    • A01N47/12—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring
    • A01N47/14—Di-thio analogues thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
    • A01N47/38—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< where at least one nitrogen atom is part of a heterocyclic ring; Thio analogues thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P3/00—Fungicides

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  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Environmental Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Microbiology (AREA)
  • Mycology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention belongs to the technical field of pesticides, and particularly relates to a synergistic composition for preventing and controlling mango anthracnose. The sterilizing synergistic composition is prepared from a compound I and a compound II according to the following ratio of 1-200:200-1, wherein the compound I is aurantiol, and the compound II is prochloraz, isopyrazam or mancozeb. The invention has the advantages that the lime enol is compounded with the prochloraz, the isopyrazam or the mancozeb within a specific mass ratio range, has a synergistic effect on inhibiting pathogenic bacteria of mango anthracnose, and can improve the control effect on the mango anthracnose. On the basis, the application amount of pesticides can be reduced, and the environmental pollution and pesticide residues are reduced. In addition, when the lime enol is compounded with prochloraz, isopyrazam or mancozeb, the occurrence and development of drug resistance of pathogenic bacteria can be delayed, and the risk of drug resistance is reduced.

Description

Synergistic composition for preventing and treating mango anthracnose
Technical Field
The invention belongs to the technical field of pesticides, and particularly relates to a synergistic composition for preventing and controlling mango anthracnose.
Background
Mango is a tropical fruit with higher economic value, has rich nutrition and unique flavor, and contains rich carbohydrate, sugar, protein, cellulose and trace elements. There are many diseases that affect healthy growth of mango during its production, wherein mango anthracnose caused by colletotrichum gloeosporioides is one of the main diseases of mango. Mango anthracnose is a first large fungus disease of mango, the incidence rate of the mango anthracnose can reach 100% in a high-temperature and high-humidity environment, and the mango industry development is seriously affected.
At present, the control means of mango anthracnose in the production uplink mainly comprises chemical control, such as spraying chemical agents of carbendazim, thiophanate-methyl, prochloraz and the like. With the wide, excessive and unscientific use of the chemical pesticides, the pathogenic bacteria resistance is generated and developed, and then the problems of environmental pollution, food safety and the like are caused. Therefore, it is important to find a safe and efficient agent for preventing and controlling mango anthracnose.
Citrinoenols, also known as: 8- (2-hydroxy-3-methyl-3-butenyl) -7-methoxycoumarin, CAS:1221-43-8, of the formula: c (C) 15 H 16 O 4 The molecular structural formula is as follows
It has been reported that the lime-enol has bactericidal activity. Chinese patent CN201410009288.9 discloses the use of a natural compound agricultural bactericide for crops. In the patent, a structure of Auraptenol is disclosed, and the concentration EC for inhibiting several fungal diseases is disclosed 50 2.84-18.46ppm. Has wide bacteriostasis spectrum and long lasting period, and is an ideal bactericide in agriculture. Compared with general chemical pesticides, the sour orange enol is derived from extracts of natural plants, has the characteristics of low toxicity, no residue, no pollution and no public hazard for various commercial crops such as grains, melons, fruits and vegetables, and is more beneficial to environmental protection.
The compounding of different pesticide components is a convenient way for developing a novel medicament, and no report related to the compounding of the lime enol with prochloraz, isopyrazam or mancozeb is currently seen.
Disclosure of Invention
The invention aims to provide a synergistic composition for preventing and controlling mango anthracnose, and aims to solve the problem.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the sterilizing synergistic composition is prepared from a compound I and a compound II according to the following ratio of 1-200:200-1, wherein the compound I is aurantiol, and the compound II is prochloraz, isopyrazam or mancozeb.
Preferably, when the compound II is prochloraz, the mass ratio of the compound I to the compound II is 1-8:16-1.
Preferably, when the compound II is isopyrazam, the mass ratio of the compound I to the compound II is 1-5:9-1.
Preferably, when the compound II is mancozeb, the mass ratio of the compound I to the compound II is 1-12:7-1.
Preferably, the mass ratio of the compound I to the compound II is 3:1.
the invention also provides application of the bactericidal synergistic composition in prevention and control of mango anthracnose.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention has the advantages that the lime enol is compounded with the prochloraz, the isopyrazam or the mancozeb within a specific mass ratio range, has a synergistic effect on inhibiting pathogenic bacteria of mango anthracnose, and can improve the control effect on the mango anthracnose. On the basis, the application amount of pesticides can be reduced, and the environmental pollution and pesticide residues are reduced.
(2) When the lime enol is compounded with prochloraz, isopyrazam or mancozeb, the occurrence and development of drug resistance of pathogenic bacteria can be delayed, and the risk of drug resistance is reduced.
Detailed Description
The following description of the embodiments of the present invention will be apparent from, and is intended to provide a thorough description of, the embodiments of the present invention, and not a complete description of, the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
Examples: indoor biological Activity assay
1. Test strain: colletotrichum gloosporioides (colletotrichum) isolated from infected mango fruits and stored on PDA medium.
2. Test agent
98% of aurantiol crude drug (Shanghai Yuan Ye Biotechnology Co., ltd.), 95% of prochloraz crude drug (inner Mongolic Lai crop protection Co., ltd.), 92% of isopyrazam crude drug (Lidantong crop protection Co., ltd.), 85% of mancozeb crude drug (Zhengzhou Lidan chemical Co., ltd.)
Dissolving the test agent with dimethyl sulfoxide, diluting with 0.1% Tween-80 aqueous solution to obtain single-agent mother solution, setting multiple groups of ratios, and setting 5 mass concentration gradients for each single-agent mother solution and the ratio mixture according to an equal ratio method.
3. Test method
The hypha growth rate method is adopted. Adding 9mL of pre-melted PDA culture medium into a sterile conical flask, sequentially quantitatively sucking 1mL of liquid medicine from low concentration to high concentration, respectively adding into the conical flask, shaking uniformly, pouring into a culture dish with the diameter of 9cm, preparing a medicine-containing flat plate with the corresponding concentration, setting treatment without medicine as blank control, and setting 5 repetitions for each treatment. Cutting bacterial cakes with the diameter of 5mm at the colony edge of the strain to be tested by using a puncher, respectively inoculating the bacterial cakes to the centers of a medicine-containing flat plate and a blank control flat plate, covering a dish cover, and then placing the bacterial cakes in a constant temperature oven at 25 ℃ for culturing. When the diameter of the blank control colony grows to be two thirds of the diameter of the culture dish, measuring the colony diameter by a crisscross method, and calculating the inhibition rate of different treatments on hypha growth.
4. Data analysis: performing data statistical analysis by DPS software, and linearly regressing with the value of the disinfectant concentration logarithmic value x and the value of the corresponding hypha growth inhibition rate logarithmic value y to obtain a virulence regression equation and the virulence EC of the medicament on the target pathogen 50 Values and co-toxicity coefficients (CTCs) were calculated according to the grand cloud Pei method.
5. Measurement results
The synergy of the agents was evaluated based on the calculated co-toxicity coefficient (CTC), CTC.ltoreq.80 being antagonism, CTC.ltoreq.120 being additive, CTC.ltoreq.120 being synergy, the results being shown in tables 1-3.
TABLE 1 indoor biological Activity determination of Citrullus anthracis by combining Citrull and prochloraz
Medicament name and ratio EC 50 (mg/L) ATI TTI CTC
Citrinin enol 5.72 100.00 -- --
Prochloraz 8.63 66.28 -- --
Citrininenol 1: prochloraz 16 4.19 136.52 68.26 199.98
Citrininenol 1: prochloraz 12 5.31 107.72 68.87 156.40
Citrininenol 1: prochloraz 8 3.39 168.73 70.03 240.95
Citrininenol 1: prochloraz 4 4.42 129.41 73.02 177.22
Citrininenol 1: prochloraz 2 3.93 145.55 77.52 187.75
Citrininenol 1: prochloraz 1 2.97 192.59 83.14 231.65
Citrininenol 2: prochloraz 1 4.92 116.26 88.76 130.98
Citrinoenol 4: prochloraz 1 3.81 150.13 93.26 160.99
Lime-enol 8: prochloraz 1 2.26 253.10 96.25 262.95
As can be seen from Table 1, at 1-8: within the mass range of 16-1, when the lime enol is compounded with prochloraz, the co-toxicity coefficient for inhibiting colletotrichum gloeosporioides is more than 120, and the synergy is shown.
TABLE 2 determination of indoor biological Activity of Citrulli and Pyrazolonamine Complex gum spore anthrax
Medicament name and ratio EC 50 (mg/L) ATI TTI CTC
Citrinin enol 5.72 100.00 -- --
Pyrazolonamid-amine 2.20 260.00 -- --
Citrininenol 1: pyrazolonamide 9 1.64 348.78 244.00 142.94
Citrininenol 1: pyrazolonamide 7 1.31 436.64 240.00 181.93
Citrininenol 1: pyrazolonamide 5 1.82 314.29 233.33 134.69
Citrininenol 1: pyrazolonamide 3 0.97 589.69 220.00 268.04
Citrininenol 1: pyrazolonamide 1 2.49 229.72 180.00 127.62
Lime-enol 3: pyrazolonamide 1 3.18 179.87 140.00 128.48
Lime-enol 5: pyrazolonamide 1 2.72 210.29 126.67 166.02
As can be seen from Table 2, at 1-5: in the mass range of 9-1, when the lime enol and the isopyrazam are compounded, the co-toxicity coefficient for inhibiting colletotrichum gloeosporioides is more than 120, and the synergy is shown.
Table 3 determination of indoor biological Activity of Citrulli and Mancozeb Complex
Medicament name and ratio EC 50 (mg/L) ATI TTI CTC
Citrinin enol 5.72 100.00 -- --
Mancozeb 3.06 186.93 -- --
Citrininenol 1: mancozeb 7 1.26 453.97 176.06 257.85
Citrininenol 1: mancozeb 5 2.71 211.07 172.44 122.40
Citrininenol 1: mancozeb 3 1.07 534.58 165.20 323.60
Citrininenol 1: mancozeb 1 1.50 381.33 143.46 265.80
Lime-enol 3: mancozeb 1 0.68 841.18 121.73 691.01
Lime-enol 5: mancozeb 1 2.37 241.35 114.49 210.81
Citrinin enol 7: mancozeb 1 4.06 140.89 110.87 127.08
Lime-enol 9: mancozeb 1 4.27 133.96 108.69 123.24
Lime-enol 12: mancozeb 1 3.61 158.45 106.69 148.52
As can be seen from Table 3, at 1-12: in the mass range of 7-1, when the lime enol is compounded with the mancozeb, the co-toxicity coefficient for inhibiting colletotrichum gloeosporioides is more than 120, and the synergistic effect is shown; when the mass ratio is 3: in the 1, the co-toxicity coefficient reaches 691.01, and the synergistic effect is most remarkable.
In conclusion, the lime enol is compounded with prochloraz, isopyrazam or mancozeb within a specific mass ratio range, has a synergistic effect on inhibiting pathogenic bacteria of mango anthracnose, and can improve the control effect on the mango anthracnose. On the basis, the application amount of pesticides can be reduced, and the environmental pollution and pesticide residues are reduced.

Claims (6)

1. The bactericidal synergistic composition is characterized in that the bactericidal synergistic composition is prepared from a compound I and a compound II according to the proportion of 1-200:200-1, wherein the compound I is aurantiol, and the compound II is prochloraz, isopyrazam or mancozeb.
2. The bactericidal synergistic composition as claimed in claim 1, wherein when the compound II is prochloraz, the mass ratio of the compound I to the compound II is 1-8:16-1.
3. The bactericidal synergistic composition as claimed in claim 1, wherein when the compound II is isopyrazam, the mass ratio of the compound I to the compound II is 1-5:9-1.
4. The bactericidal synergistic composition as claimed in claim 1, wherein, when the compound II is mancozeb, the mass ratio of the compound I to the compound II is 1-12:7-1.
5. The bactericidal synergistic composition as claimed in claim 4, wherein the mass ratio of the compound I to the compound II is 3:1.
6. use of the bactericidal synergistic composition of any one of claims 1-5 for controlling mango anthracnose.
CN202310832579.7A 2023-07-08 2023-07-08 Synergistic composition for preventing and treating mango anthracnose Pending CN117044723A (en)

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CN202310832579.7A CN117044723A (en) 2023-07-08 2023-07-08 Synergistic composition for preventing and treating mango anthracnose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310832579.7A CN117044723A (en) 2023-07-08 2023-07-08 Synergistic composition for preventing and treating mango anthracnose

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