CN116616299A - Bactericide composition containing saccharide compound and application thereof - Google Patents

Bactericide composition containing saccharide compound and application thereof Download PDF

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Publication number
CN116616299A
CN116616299A CN202310586722.9A CN202310586722A CN116616299A CN 116616299 A CN116616299 A CN 116616299A CN 202310586722 A CN202310586722 A CN 202310586722A CN 116616299 A CN116616299 A CN 116616299A
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China
Prior art keywords
parts
saccharide compound
bactericide composition
hymexazol
metalaxyl
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Pending
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CN202310586722.9A
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Chinese (zh)
Inventor
张世乾
黄金龙
张建锋
杨锟
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Fujian Sino Dashing Bioengineering Co ltd
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Fujian Sino Dashing Bioengineering Co ltd
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Priority to CN202310586722.9A priority Critical patent/CN116616299A/en
Publication of CN116616299A publication Critical patent/CN116616299A/en
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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
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
    • 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
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
    • A01N37/46—N-acyl derivatives
    • 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
    • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P1/00—Disinfectants; Antimicrobial compounds or mixtures 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
    • A01P21/00—Plant growth regulators
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Mycology (AREA)
  • Botany (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention discloses a bactericide composition containing saccharide compounds and application thereof, and belongs to the field of pesticide bactericides. The bactericide composition comprises the following components in parts by weight: 0.1 to 6 parts of metalaxyl, 0.2 to 24 parts of hymexazol, 0.5 to 5 parts of saccharide compound, 1 to 10 parts of wetting agent and 55 to 98.2 parts of dispersion medium. The metalaxyl, the hymexazol and the saccharide compound have synergistic effect, so that the pollution to the underground water can be effectively reduced. The bactericide composition has simple formula and process, does not have organic solvent and dust pollution, and can be used as an energy donor for crops to promote the growth of the crops.

Description

Bactericide composition containing saccharide compound and application thereof
Technical Field
The invention relates to the field of pesticide bactericides, in particular to a bactericide composition containing saccharide compounds and application thereof.
Background
The pesticide cannot be directly used, proper auxiliary components such as an emulsifier, a stabilizer, a dispersing agent, a carrier and the like are generally required to be selected according to the properties of the pesticide raw material, the application scene and the like, and high-performance preparations such as a soluble agent, an aqueous emulsion, a suspending agent and the like are produced through scientific and reasonable preparation processing technology so as to improve the application defects of the pesticide raw material, improve the pesticide effect, reduce the toxicity, reduce the pollution, avoid the harm to beneficial organisms, delay the development of pesticide resistance of the pests and further expand the application range of pesticide varieties.
Metalaxyl, CAS number 57837-19-1, chemical name D, L-N- (2, 6-dimethylphenyl) -N- (2' -methoxyacetyl) alanine methyl ester, stable in neutral and acidic medium at room temperature, hydrolyzed DT50 > 200D (ph=1), 115D (ph=9), 12D (ph=10). As a systemic bactericide, the disinfectant has the protection and treatment effects, is rapidly absorbed by roots, stems and leaves of plants, and can be transported to various parts; used for stem and leaf treatment, seed treatment, soil treatment and the like; has control effect on diseases caused by downy mildew, phytophthora and pythium.
Hymexazol, CAS number 10004-44-1, chemical name 5-methyl-1, 2-oxazol-3-ol, stable at room temperature. As systemic bactericide and soil disinfectant, the microbial inoculum is combined with iron and aluminum ions in soil to inhibit spore germination, is absorbed by plant roots and moves in the root systems, and metabolites in plant bodies can improve the physiological activity of crops and promote plant growth, tillering and the like; has control effect on diseases caused by Pythium and fusarium.
CN103190432a discloses a composition of bactericide, which contains a mixture of three active components of hymexazol, metalaxyl and prochloraz, and is used for preventing and treating bakanae disease and damping off of rice in seedling stage; CN112841190a discloses a coating agent for crucifer seeds, a preparation method and a use method thereof, gibberellin, alpha-naphthylacetic acid, hymexazol, metalaxyl-M and basic fuchsin are dissolved in water to prepare a liquid medicine, and the liquid medicine, prepared Sparassis crispa residues and methylcellulose are stirred and mixed to obtain the crucifer seed coating agent. Although the above patent gives the formulation and preparation method of the bactericide or seed coating agent, only physical mixing of the effective components of the pesticide does not provide a synergistic mechanism of the composition.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a bactericide composition containing saccharide compounds and application thereof, and a green sustainable application method is constructed by forming a compound through multiple intermolecular interactions, improving synergistic effect.
In order to solve the technical problems, the invention provides the following technical scheme.
In one aspect, the invention provides a bactericide composition containing saccharide compounds, which comprises the following components in parts by weight:
further, the mass ratio of metalaxyl to hymexazol is 1 (2-5). The ratio of the saccharide compound to the total mass of metalaxyl and hymexazol is 1.1-1.6:1.
Preferably, the saccharide compound is one or more of monosaccharide, disaccharide or polysaccharide. Wherein, monosaccharide generally refers to glucose, fructose and galactose, disaccharide generally refers to sucrose and lactose, and polysaccharide generally refers to chitosan, polyfructose and cellulose.
Preferably, the wetting agent is one or more of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium lignin sulfonate and polyphosphate. The dispersion medium is water.
Preferably, the bactericide composition containing the carbohydrate compound comprises the following components in parts by weight:
on the other hand, the invention also provides an application method of the bactericide composition containing the saccharide compound, namely, the seedling disease is prevented and treated by stem and leaf spraying in the initial stage of disease occurrence, or the soil disinfection seedbed is sprayed by adding water.
Compared with the prior art, the invention has the following beneficial effects:
the molecular structures of metalaxyl and hymexazol are provided with oxygen-containing groups, and on one hand, the molecular structures of the metalaxyl and hymexazol and the sugar polyhydroxy compounds can improve the water solubility of the products through intermolecular hydrogen bonds, pi-pi and other weak interactions; on the other hand, metalaxyl and hymexazol have larger water solubility, have stronger leaching effect, and are equivalent to grafting different saccharide molecules on the surfaces of pesticide molecules through interaction with saccharide compounds, so that the size of the pesticide molecules is increased to a certain extent, the leaching effect of the pesticide can be effectively reduced, and the pesticide is prevented from entering underground water to form pollution; in yet another aspect, the addition of carbohydrate may increase the nutritional content of the crop to some extent. The metalaxyl, the hymexazol and the saccharide compound have synergistic effect, so that the sterilization effect can be effectively improved.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention more apparent, the following detailed description will be made with reference to specific embodiments.
Materials, reagents, and the like used in the examples described below are all commercially available.
The invention provides a bactericide composition containing polysaccharide compounds and application thereof, and specific examples are as follows.
Example 1
The bactericide composition containing the saccharide compound comprises the following components in parts by weight:
0.5 part of metalaxyl, 2.5 parts of hymexazol, 2.5 parts of glucose, 1 part of chitosan, 10 parts of polyphosphate and 83.5 parts of water.
Example 2
The bactericide composition containing the saccharide compound comprises the following components in parts by weight:
0.1 part of metalaxyl, 0.2 part of hymexazol, 0.5 part of chitosan, 1 part of sodium dodecyl sulfate and 98.2 parts of water.
Example 3
The bactericide composition containing the saccharide compound comprises the following components in parts by weight:
6 parts of metalaxyl, 24 parts of hymexazol, 5 parts of sucrose, 10 parts of sodium lignin sulfonate and 55 parts of water.
Example 4
The bactericide composition containing the saccharide compound comprises the following components in parts by weight:
5 parts of metalaxyl, 20 parts of hymexazol, 2.5 parts of lactose, 10 parts of polyphosphate and 62.5 parts of water.
Example 5
The bactericide composition containing the saccharide compound comprises the following components in parts by weight:
0.5 part of metalaxyl, 2.5 parts of hymexazol, 3.5 parts of glucose, 10 parts of polyphosphate and 84.5 parts of water.
Example 6
The bactericide composition containing the saccharide compound comprises the following components in parts by weight:
3 parts of metalaxyl, 15 parts of hymexazol, 4 parts of fructose, 10 parts of sodium dodecyl benzene sulfonate and 68 parts of water.
Example 7
The bactericide composition containing the saccharide compound comprises the following components in parts by weight:
3 parts of metalaxyl, 15 parts of hymexazol, 4 parts of polyfructose, 10 parts of sodium lignin sulfonate and 68 parts of water.
Example 8
The bactericide composition containing the saccharide compound comprises the following components in parts by weight:
0.2 part of metalaxyl, 1 part of hymexazol, 1 part of cellulose, 2 parts of polyphosphate and 95.8 parts of water.
Example 9
The bactericide composition containing the saccharide compound comprises the following components in parts by weight:
10 parts of metalaxyl, 20 parts of hymexazol, 4 parts of galactose, 10 parts of polyphosphate and 56 parts of water.
Example 10
The bactericide composition containing the saccharide compound comprises the following components in parts by weight:
0.5 part of metalaxyl, 2.5 parts of hymexazol, 3.5 parts of chitosan, 10 parts of polyphosphate and 83.5 parts of water.
To further illustrate the beneficial effects of the present invention, comparative examples were constructed as follows.
Comparative example 1
The bactericide composition comprises the following components in parts by weight:
0.5 part of metalaxyl, 2.5 parts of hymexazol, 10 parts of polyphosphate and 87 parts of water.
The appearance, pH, water-solubility, foam retention, heat storage stability and low temperature stability of examples 1 to 10 and comparative example 1 were measured according to HG/T2467.7-2003, pesticide soluble product Standard write Specification, and the results are shown in Table 1.
TABLE 1 determination of physical Properties of Bactericide combinations
According to the relevant standards, the physicochemical indexes of the examples 1-10 and the comparative example 1 meet the standards, and the following method is used for further detection in order to screen more excellent bactericide composition formulas.
Surface tension measurement: the surface tension of the diluted liquid medicine after 1000 times is measured by using a DCAT 21 surface interfacial tension meter and adopting a hanging piece method. The platinum sheet is cleaned by absolute ethyl alcohol and ultrapure water during each measurement, is burned by an alcohol lamp until the platinum sheet turns red, is placed at room temperature and is measured, and the average value is obtained after 5 times of measurement. The experimental temperature is controlled at (298.0 +/-0.2) K, and the humidity is controlled at 65%.
Equilibrium contact angle determination: and 2 mu L of diluted 1000-time liquid medicine is formed by using an OCA 20 contact angle measuring instrument and a microinjector, a workbench is adjusted to enable liquid drops to be in contact with the surface of the polytetrafluoroethylene film, the contact angle of the liquid drops on the surface of the polytetrafluoroethylene film is obtained through SCA20 software treatment, the contact angle at 60s is selected as an equilibrium contact angle in the experimental process, and the average value is obtained after 10 times of measurement each time. The experimental temperature is controlled at (298.0 +/-0.2) K, and the humidity is controlled at 65%.
Adhesion measurement: and (3) fixing 10 mu L of diluted 1000-time liquid medicine on a metal ring by using a DCAT 21 surface interfacial tension meter by using a microinjector, fixing the surface of a polytetrafluoroethylene film on a lifting table, gradually lifting the platform, enabling the solid surface to approach drops infinitely, gradually lowering the platform until solid-liquid separation after the two are contacted, measuring mass change by using an inverted balance to monitor the change process of adhesion, and taking an average value 5 times each time. The experimental temperature is controlled at (298.0 +/-0.2) K, and the humidity is controlled at 65%.
Measurement of deposition amount: spraying the diluted 1000-time liquid medicine on the surface of the polytetrafluoroethylene film (the inclined angle is 45 degrees) by using a WS-18D electric sprayer, and calculating to obtain the deposition amount of the liquid medicine in unit area by measuring the mass change of the polytetrafluoroethylene film before and after spraying, wherein the average value is obtained by measuring 10 times each time.
The results are shown in Table 2.
TABLE 2 determination of interfacial parameters for antimicrobial compositions
As can be seen from table 2, in combination with the measurement of the relevant interfacial parameters, the results show that the adhesion and deposition amounts of the bactericidal composition prepared by adding different amounts of saccharide compounds are different; meanwhile, the adhesion and the deposition amount of the bactericidal composition prepared by adding different types of saccharide compounds are also greatly different.
Meanwhile, the inventor also performs a field efficacy experiment, researches the prevention and treatment effect of the rice damping-off, and specifically comprises the following steps: the backpack type spray is used, the bactericide composition liquid medicines of examples 1-10 and comparative example 1 are used for spraying crops in each block, the blank control group is used for spraying with equal amount of clean water, the bactericide application amount is 15 g/mu, spraying is carried out after each bactericide is diluted 1000 times, the disease condition is investigated respectively 1 day before and 7 days after the pesticide application, and the specific test method is carried out according to pesticide field efficacy test criterion. The control effect was calculated according to the formula, and the results are shown in table 3.
Wherein, the rice damping off is recorded in 6 grades according to the leaf area proportion of the disease spots:
level 0: no disease spots;
stage 1: the area of the disease spots accounts for less than 10-20% of the whole leaf area;
2 stages: the area of the lesion accounts for 21% -40% of the whole leaf area;
3 stages: the area of the lesion accounts for 41% -60% of the whole leaf area;
4 stages: the area of the lesion accounts for 61% -80% of the whole leaf area;
5 stages: the area of the lesion accounts for 81% -100% of the whole leaf area.
And calculating the disease index and the prevention and treatment effect of each treatment according to the investigation data.
TABLE 3 control of damping off of rice by each treatment
Sequence number Index of pre-drug condition Index of disease 7 days after administration Control effect (%)
Example 1 19.95 8.53 80.06
Example 2 20.13 15.33 64.16
Example 3 19.41 9.20 78.48
Example 4 20.14 8.79 79.44
Example 5 20.07 12.57 70.60
Example 6 19.55 10.65 75.10
Example 7 19.87 11.77 72.48
Example 8 20.36 15.63 63.45
Example 9 19.95 14.05 67.15
Example 10 21.08 5.34 87.51
Comparative example 1 20.28 13.92 67.45
Control group 20.41 42.77 —
As can be seen from Table 3, the efficacy of the examples of the present invention was better than that of the control group. During the experiment, each medicament treatment is safe to rice, and no harmful phytotoxicity is generated, wherein the rice in the embodiment of the invention has better growth vigor.
In conclusion, the invention has higher sterilization effect through the synergistic effect of metalaxyl, hymexazol and saccharide compounds, can be used as an energy donor of crops, and promotes the growth of the crops.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims (9)

1. The bactericide composition containing the saccharide compound is characterized by comprising the following components in parts by weight:
2. the carbohydrate-containing bactericide composition according to claim 1, wherein the mass ratio of metalaxyl to hymexazol is 1 (2-5).
3. The bactericide composition containing a saccharide compound according to claim 2, characterized in that the ratio of the saccharide compound to the total mass of metalaxyl and hymexazol is 1.1 to 1.6:1.
4. A biocide composition containing a saccharide compound according to claim 3, wherein the saccharide compound is one or more of monosaccharides, disaccharides and polysaccharides.
5. The saccharide compound containing fungicide composition according to claim 4, wherein the monosaccharide is one or more of glucose, fructose and galactose; the disaccharide is sucrose and/or lactose; the polysaccharide is one or more of chitosan, polyfructose and cellulose.
6. The carbohydrate-containing sterilant composition according to claim 5, wherein the wetting agent is one or more of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium lignin sulfonate and polyphosphate.
7. The saccharide compound-containing bactericide composition according to claim 6, wherein the dispersion medium is water.
8. The bactericide composition containing a saccharide compound according to claim 7, characterized by comprising the following components in parts by weight:
9. use of the saccharide-containing fungicide composition according to any one of claims 1 to 8, characterized in that the seedling disease is controlled by using stem and leaf spraying or soil disinfection seedbed by adding water in the early stage of disease.
CN202310586722.9A 2023-05-24 2023-05-24 Bactericide composition containing saccharide compound and application thereof Pending CN116616299A (en)

Priority Applications (1)

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CN202310586722.9A CN116616299A (en) 2023-05-24 2023-05-24 Bactericide composition containing saccharide compound and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310586722.9A CN116616299A (en) 2023-05-24 2023-05-24 Bactericide composition containing saccharide compound and application thereof

Publications (1)

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Country Status (1)

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