CN113115792A - Bactericidal composition containing copper calcium sulfate - Google Patents

Bactericidal composition containing copper calcium sulfate Download PDF

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Publication number
CN113115792A
CN113115792A CN201911400805.4A CN201911400805A CN113115792A CN 113115792 A CN113115792 A CN 113115792A CN 201911400805 A CN201911400805 A CN 201911400805A CN 113115792 A CN113115792 A CN 113115792A
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calcium sulfate
copper
copper calcium
weight ratio
bactericidal composition
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张通
冯塔
曹巧利
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Shaanxi Meibang Pharmaceutical Group Co ltd
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Shaanxi Meibang Pharmaceutical Group Co ltd
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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
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/16—Heavy metals; Compounds thereof
    • A01N59/20—Copper
    • 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
    • A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
    • A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
    • A01N33/18—Nitro compounds
    • A01N33/20—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group
    • 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

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

Abstract

The invention discloses a copper-calcium sulfate-containing bactericidal composition, which contains an active ingredient A and an active ingredient B, wherein the active ingredient A is selected from copper calcium sulfate, and the active ingredient B is selected from any one of the following compositions: kasugamycin and bronopol, wherein the weight ratio of the active component A to the active component B is 1: 1-30: 1. The composition can be used for preventing and treating various diseases of various crops and has good prevention and treatment effects; has the characteristics of wide bactericidal spectrum, small dosage, rain wash resistance and obvious synergy.

Description

Bactericidal composition containing copper calcium sulfate
Technical Field
The invention belongs to the technical field of pesticides, and relates to application of a copper calcium sulfate-containing bactericidal composition to crop diseases.
Technical Field
Copper calcium sulfate (copper calcium sulfate) is a broad-spectrum protective bactericide and is widely applied to fungal diseases on fruit trees and vegetables.
Kasugamycin (kasugamycin) chemical name: [ 5-amino-2-methyl-6- (2,3,4,5, 6-carbonylcyclohexyloxo) pyran-3-ylamino-a-iminoacetic acid ], molecular formula: C14H25N3O9, kasugamycin is an agricultural antibiotic, has strong systemic property, mainly interferes with the metabolic esterase system of amino acid, thereby influencing the synthesis of protein, inhibiting the extension of hypha and causing cell granulation, but has no influence on spore germination.
Bronopol (Bronopol), which is mainly used for controlling diseases caused by various plant pathogenic bacteria; can be used for preventing and treating rice bakanae disease, cotton black arm disease and bacterial wilt.
Disclosure of Invention
The single preparation of copper calcium sulfate, bronopol and kasugamycin can bring the problems of resistance generation, drug effect reduction and the like after long-term use.
A bactericidal composition contains an active ingredient A and an active ingredient B, and is characterized in that: the weight ratio of the active component A to the active component B is 1: 1-30: 1, the active component A is selected from copper calcium sulfate, the active component B is selected from one of bronopol and kasugamycin, and the preferred weight ratio of the active component A to the active component B is 1: 1-20: 1; more preferably, the weight ratio of the copper calcium sulfate to the bronopol is 1: 1-9: 1, the weight ratio of the copper calcium sulfate to the kasugamycin is 10: 1-20: 1, the most preferably the weight ratio of the copper calcium sulfate to the bronopol is 6: 1, and the weight ratio of the copper calcium sulfate to the kasugamycin is 19: 1.
The bactericidal composition is used for preventing and treating diseases on cereal crops, fruit trees, vegetables and ornamental plants.
The diseases comprise: canker, bakanae disease, fusarium wilt, bacterial angular leaf spot, downy mildew, rice blast, early blight, scab, banded sclerotial blight, gray mold, rust disease, epidemic disease, brown spot, alternaria leaf spot, leaf mold, soft rot, false smut, damping off, leaf blight, black spot, anthracnose, brown spot and late blight.
The weight ratio of the active component A to the active component B is 1: 1-30: 1. The active ingredient is generally present in the composition in an amount of from 0.5% to 90% by weight, preferably from 5% to 80% by weight, based on the total weight of the composition. The range of active ingredient content will vary from formulation to formulation. Generally, liquid formulations contain from 0.5% to 70% by weight of active substance, preferably from 5% to 50%; the solid preparation contains 5-80% by weight of active substance, preferably 10-80%.
The bactericidal composition contains at least one surfactant to facilitate dispersion of the active ingredients in water during application. The content of the surfactant accounts for 5 to 30 percent of the total weight of the preparation, and the balance is solid or liquid diluent.
The surfactants selected for use in the germicidal compositions of the present invention are well known to those skilled in the art: can be selected from one or more of dispersing agent, wetting agent, binder or defoaming agent. Depending on the dosage form, the preparation may further contain a disintegrant, an anti-freeze agent, etc., which are known to those skilled in the art.
The germicidal composition of the present invention may be diluted by the user prior to use or used directly. The formulation can be prepared by conventional processing methods known to those skilled in the art, i.e., mixing the active substance with a liquid solvent or a solid carrier, followed by the addition of one or more surfactants such as dispersants, stabilizers, wetting agents, binders, defoamers, and the like.
The bactericidal composition can be processed into any formulation acceptable for pesticides according to the requirement, wherein the preferred formulation is as follows: wettable powder, water dispersible granules, suspending agents, aqueous emulsion, microemulsion, microcapsule suspending agents, microcapsule suspension-suspending agents, suspoemulsion and granules.
The composition comprises the following components in percentage by weight when prepared into wettable powder: 0.1-80% of active ingredient A, 0.1-30% of active ingredient B, 2-10% of dispersing agent, 2-10% of wetting agent and the balance of filler.
When the composition is prepared into water dispersible granules, the composition comprises the following components in percentage by weight: 0.1-80% of active ingredient A, 0.1-30% of active ingredient B, 3-12% of dispersing agent, 1-8% of wetting agent, 1-10% of disintegrating agent, 0-4% of binding agent and the balance of filler.
The composition is prepared into a suspending agent and comprises the following components in percentage by weight: 0.1-50% of active ingredient A, 0.1-20% of active ingredient B, 2-10% of dispersing agent, 2-10% of wetting agent, 0.01-2% of defoaming agent, 0.05-2% of thickening agent, 0-8% of antifreeze agent and 100% of deionized water.
When the composition is prepared into an aqueous emulsion, the composition comprises the following components in percentage by weight: 0.1-50% of active ingredient A, 0.1-20% of active ingredient B, 0-30% of solvent, 1-15% of emulsifier, 0-8% of antifreeze agent, 0.05-2% of thickening agent, 0.01-2% of defoaming agent and the balance of deionized water.
The composition comprises the following components in percentage by weight when prepared into microemulsion: 0.1-50% of active ingredient A, 0.1-20% of active ingredient B, 0-30% of solvent, 3-20% of emulsifier, 0-8% of antifreeze agent, 0.05-2% of thickening agent, 0.01-2% of defoaming agent, 0-4% of stabilizer and the balance of deionized water.
When the composition is prepared into a microcapsule suspending agent, the composition comprises the following components in percentage by weight: 0.1-50% of active ingredient A, 0.1-20% of active ingredient B, 2-10% of polymer capsule wall material, 1-10% of dispersant, 0-10% of solvent, 1-7% of emulsifier, 0.01-5% of pH regulator and 100% of deionized water.
The wettable powder has the main technical indexes that:
Figure BDA0002347401480000041
the water dispersible granule has the main technical indexes that:
Figure BDA0002347401480000042
the suspending agent of the invention has the main technical indexes that:
Figure BDA0002347401480000043
the aqueous emulsion of the invention has the main technical indexes that:
Figure BDA0002347401480000044
Figure BDA0002347401480000051
the microemulsion of the invention has the main technical indexes that:
Figure BDA0002347401480000052
the microcapsule suspending agent of the invention has the main technical indexes that:
Figure BDA0002347401480000053
the microcapsule suspension-suspending agent has the main technical indexes that:
Figure BDA0002347401480000054
the suspending agent of the invention has the main technical indexes that:
Figure BDA0002347401480000055
the invention has the advantages that:
(1) after the copper calcium sulfate, the bronopol and the kasugamycin are compounded, the composition has obvious synergy and lasting effect; (2) the bactericidal composition has special effects on canker, powdery mildew, downy mildew, early blight, scab, banded sclerotial blight, gray mold, rust disease, epidemic disease, brown spot, alternaria leaf spot, leaf mold, blight, soft rot, bacterial angular leaf spot, rice blast, false smut, damping off, leaf blight, black spot, anthracnose, brown spot, late blight and the like of cereal crops, fruit trees, vegetables and ornamental plants; (3) the dosage of the pesticide is reduced, the residual quantity of the pesticide on crops is reduced, and the environmental pollution is reduced; (4) the coating is safe to human and livestock and has good environmental compatibility; the preparation has high adhesion and rain wash resistance.
Detailed Description
The invention will be further illustrated with reference to the following examples, in which the percentages are by weight, but the invention is not limited thereto.
Application embodiment 1
Examples 1 to 6 wettable powders
The wettable powder product of the invention can be prepared by mixing the copper calcium sulfate, the effective component B, the dispersant, the wetting agent and the filler, uniformly mixing in a mixing tank, crushing by a jet mill and uniformly mixing. See table 1 for details.
TABLE 1 EXAMPLES 1-6 compositions and amounts
Figure BDA0002347401480000061
Figure BDA0002347401480000071
Examples 7-12 Water dispersible granules
And (3) carrying out air flow crushing on the copper calcium sulfate, the effective component B, the dispersing agent, the wetting agent, the binder, the disintegrating agent and the filler to obtain the required particle size, thus obtaining the granulating material. And (3) quantitatively feeding the material into a fluidized bed granulation dryer, and granulating and drying to obtain the water dispersible granule product. See table 2 for details.
TABLE 2 examples 7-12 compositions and amounts
Figure BDA0002347401480000072
Examples 13-18 suspending agents
Uniformly shearing and mixing a dispersing agent, a wetting agent, a defoaming agent, a thickening agent and an antifreeze agent at a high speed, adding copper calcium sulfate and an active ingredient B, and complementing the balance with deionized water, and ball-milling in a ball mill for 2-3 hours to ensure that the particle size of particles is below 5 mu m, thereby preparing the suspending agent product. See table 3 for details.
TABLE 3 examples 13-18 compositions and amounts
Figure BDA0002347401480000073
Figure BDA0002347401480000081
Example 19 to 24 emulsion in water
Adding copper calcium sulfate, effective component B, solvent and emulsifier together to dissolve into uniform oil phase; mixing deionized water, an antifreeze agent, a thickening agent and a defoaming agent together to form a uniform water phase. And adding the water phase into the oil phase under high-speed stirring to obtain the aqueous emulsion product. See table 4 for details.
TABLE 4 examples 19-24 compositions and amounts
Figure BDA0002347401480000082
Examples 25 to 28 microcapsule suspensions
Mixing copper calcium sulfate, an active ingredient B, a high polymer capsule wall material and a solvent to dissolve the mixture into a uniform oil phase, adding the oil phase into an aqueous phase solution containing an emulsifier, a pH regulator, a dispersant and a defoaming agent under a shearing condition, complementing the balance with deionized water, and reacting the two materials at an oil-water interface to form a high polymer capsule wall to prepare a microcapsule suspending agent product with the composition well dispersed. See table 5 for details.
TABLE 5 examples 25-28 compositions and amounts
Figure BDA0002347401480000091
The active ingredients B in tables 1-5 are exchanged with bronopol and kasugamycin, and a new preparation can be prepared.
The second application example is implemented: and (3) carrying out indoor toxicity determination on the citrus canker by compounding copper calcium sulfate, bronopol and kasugamycin.
The test medicament is provided by Shaanxi Meibang pharmaceutical industry group GmbH.
And (3) experimental design: the effective inhibition concentration range of the original drugs of copper calcium sulfate and bronopol and the mixture of the original drugs of copper calcium sulfate and bronopol with different proportions is determined by a preliminary test.
The embodiment of the invention adopts a method combining indoor toxicity measurement and field test. Firstly, determining the Synergistic Ratio (SR) of two medicaments compounded according to a certain proportion by indoor toxicity measurement, wherein the SR is less than 0.5 for antagonism, the SR is more than or equal to 0.5 and less than or equal to 1.5 for addition, and the SR is more than 1.5 for synergism, and then carrying out field test on the basis.
The indoor toxicity of the crop diseases is measured by compounding the copper calcium sulfate and the active component B. After the effective inhibition concentration range of each medicament is determined by pre-test, each medicament is treated with 5 doses according to the content of effective components, and clear water is used for comparison. Referring to 'indoor pesticide bioassay test standard bactericide', a flat plate colony counting method is adopted to prepare raw copper calcium sulfate, bronopol and kasugamycin with different concentration gradients for later use. Each drug was treated with 5 concentrations, repeated 4 times, and the mean value was taken for calculation. After 24h, the colony number of each culture dish is investigated, and the colony number growth inhibition rate of each treatment concentration on the test target bacteria is calculated.
Figure BDA0002347401480000101
And calculating the synergistic coefficient of the mixture by using a Wadley method, and evaluating the combined action type. The experimental results are as follows:
TABLE 6 analysis table of toxicity measurement results of copper calcium sulfate, bronopol and their combination on citrus canker
Figure BDA0002347401480000102
As shown in Table 6, the ratio of copper calcium sulfate to bronopol is 30:1 to 1:1, the synergy ratio SR is more than 1.5, which shows that the synergy is shown when the copper calcium sulfate and the bronopol are mixed in the range of 30:1 to 1:1, especially when the mixture ratio of the copper calcium sulfate to the bronopol is 1:1 to 20:1, the synergistic effect is obvious, the synergistic ratio is more than 1.6, and when the ratio of the two is 1:1 to 9: when the weight ratio of the copper calcium sulfate to the bronopol is 6: 1, the synergy is particularly obvious, the synergy ratio is more than 1.7, wherein the synergy ratio SR is the largest when the weight ratio of the copper calcium sulfate to the bronopol is 6: 1, and the synergy is most obvious. Experiments show that when the ratio of the copper calcium sulfate to the bronopol is 20:1, 15:1 and 12: 1. 9: 1. 8: 1. 7: 1. 6: 1. 5: 1. 4: 1. 3: 1. 2: 1. 1: the synergistic effect on other powdery mildew, downy mildew, early blight, scab, banded sclerotial blight, gray mold, rust disease, epidemic disease, brown spot, alternaria leaf spot, leaf mold, blight, soft rot, bacterial angular leaf spot, rice blast, false smut, damping off, leaf blight, black spot, anthracnose, brown spot and late blight is obvious at 1 hour, and the synergistic ratio is more than 1.5.
TABLE 7 analysis table of toxicity measurement results of copper calcium sulfate, kasugamycin and their combination on citrus canker
Figure BDA0002347401480000111
As can be seen from Table 7, the ratio of copper calcium sulfate to kasugamycin is 30:1 to 1:1, the synergy ratio SR is more than 1.5, which shows that the synergy is shown when the copper calcium sulphate and the kasugamycin are mixed within the range of 30:1 to 1:1, particularly when the mixture ratio of the copper calcium sulphate to the kasugamycin is 10: 1 to 20:1, the synergistic effect is obvious, the synergistic ratio is more than 1.6, wherein the maximum synergistic ratio SR is realized when the weight ratio of the copper calcium sulfate to the bronopol is 19: 1, and the synergistic effect is most obvious.
Experiments show that when the ratio of the copper calcium sulfate to the kasugamycin is 30:1, 25:1 and 20: 1. 19: 1. 15: 1. 10: 1. the synergistic effect is obvious when the ratio of the effective components to the powdery mildew is 5:1 and the ratio of the effective components to the powdery mildew to the early blight to the scab to the sheath blight to the gray mold to the rust disease to the scab to the brown spot to the leaf mold to the early blight to the soft rot to the bacterial angular leaf spot to the rice blast to the rice false smut to the bacterial blight to the leaf blight to the soft rot to the bacterial angular leaf spot to the rice blast to the rice false smut to the rice, the damping off to the rice, the leaf blight to the.
Drug effect test for preventing and treating citrus canker by compounding copper calcium sulfate and active ingredient B in application embodiment
The experiment is arranged in suburbs in Hanzhong province in Shaanxi province, the test medicament is provided by Shaanxi American nation pharmaceutical industry group GmbH, and the control medicament is 77% copper calcium sulfate wettable powder (purchased from market), 20% bronopol wettable powder (purchased from market) and 2% kasugamycin wettable powder (purchased from market). Spraying 3 times at an interval of about 10 days at the initial stage of citrus canker disease, wherein the average liquid medicine amount per tree is 4L. Calculating the disease index and the prevention and treatment effect according to the item 103 in the pesticide field efficacy test criterion (II), wherein the experimental results are as follows:
TABLE 8 efficacy test of copper calcium sulfate and active ingredient B for preventing and treating citrus canker
Figure BDA0002347401480000121
As can be seen from the table 8, after the copper calcium sulfate, the bronopol and the kasugamycin are compounded, the citrus canker can be effectively prevented and treated, the prevention and treatment effects are superior to those of a single agent, and the lasting time is long; has no adverse effect on target crops in the application range of the test.
Pesticide effect test for preventing and treating rice bakanae disease by compounding copper calcium sulfate and active ingredient B in application example
The experiment is arranged in suburbs in Hanzhong province in Shaanxi province, the test medicament is provided by Shaanxi American nation pharmaceutical industry group GmbH, and the control medicament is 77% copper calcium sulfate wettable powder (purchased from market), 20% bronopol wettable powder (purchased from market) and 2% kasugamycin wettable powder (purchased from market). Spraying for 2 times at the initial stage of the rice bakanae disease, wherein the interval is about 7 days, disease indexes are investigated and control effects are calculated 7 days, 14 days and 30 days after the pesticide application, and the experimental results are as follows:
TABLE 9 test of the efficacy of copper calcium sulfate and active ingredient B in preventing and treating bakanae disease of rice
Figure BDA0002347401480000131
As can be seen from Table 9, the copper calcium sulfate, the bronopol and the kasugamycin can effectively prevent and treat the rice bakanae disease after being compounded, the prevention and treatment effect is superior to that of a single agent, the lasting time is long, and the compound has a certain prevention effect on rice sheath blight; has no adverse effect on target crops in the application range of the test.
Application example pharmaceutical effect test for preventing and treating cucumber fusarium wilt by compounding copper calcium sulfate pentahydrate and active ingredient B
The experiment is arranged in the suburb of Xian city in Shaanxi province, the test medicament is provided by Shaanxi American nation pharmaceutical industry group GmbH, and the control medicament is 77% copper calcium sulphate wettable powder (purchased from market), 20% bronopol wettable powder (purchased from market) and 2% kasugamycin wettable powder (purchased from market).
According to the national standard field efficacy experiment guideline (II), 17980.113-2004, before the onset of cucumber fusarium wilt, the disease condition of cucumber fusarium wilt is investigated, the drug is applied for the first time at the initial stage of disease condition, and is applied once every 10 days for 2 times. And (5) investigating disease indexes 7 days and 14 days after the second application and calculating prevention effects. The experimental results are shown below:
TABLE 10 efficacy test of copper calcium sulfate and active ingredient B for preventing and treating cucumber fusarium wilt
Figure BDA0002347401480000141
As can be seen from Table 10, the combination of the copper calcium sulfate, the bronopol and the kasugamycin can effectively prevent and treat the cucumber fusarium wilt, the prevention and treatment effects are superior to those of a single agent, and the compound has certain prevention and treatment effects on cucumber downy mildew and cucumber bacterial angular leaf spot and long lasting time; has no adverse effect on target crops in the application range of the test.
Tests in different places across the country show that the control effects of the copper calcium sulfate, the bronopol and the kasugamycin on common diseases of various crops such as canker, bakanae disease, blight, bacterial angular leaf spot, downy mildew, rice blast, early blight, scab, banded sclerotial blight, gray mold, rust disease, epidemic disease, brown spot, alternaria leaf spot, leaf mold, soft rot, false smut, rhizoctonia rot, leaf blight, black spot, anthracnose, brown spot, late blight and the like are all more than 95 percent, the control effects are superior to those of a single agent, and the synergistic effect is obvious.

Claims (8)

1. The bactericidal composition containing the copper calcium sulfate contains an active ingredient A and an active ingredient B, and is characterized in that: the weight ratio of the active component A to the active component B is 1: 1-30: 1, wherein the active component A is selected from copper calcium sulfate, and the active component B is selected from one of kasugamycin and bronopol.
2. The bactericidal composition containing calcium copper sulfate according to claim 1, wherein: the weight ratio of the active component A to the active component B is 1: 1-20: 1.
3. The bactericidal composition containing calcium copper sulfate according to claim 2, wherein:
the weight ratio of the copper calcium sulfate to the bronopol is 1: 1-9: 1;
the weight ratio of the copper calcium sulfate to the kasugamycin is 10: 1-20: 1.
4. The bactericidal composition containing copper calcium sulfate according to claim 3, wherein:
the weight ratio of copper calcium sulfate to bronopol is 6: 1;
the weight ratio of copper calcium sulfate to kasugamycin is 19: 1.
5. The bactericidal composition containing calcium copper sulfate according to any one of claims 1 to 4, characterized in that: the composition can be prepared into wettable powder, water dispersible granules, suspending agents, suspoemulsion, aqueous emulsion, water aqua, microemulsion, microcapsule suspending agents and microcapsule suspension-suspending agents.
6. The use of the copper calcium sulfate-containing bactericidal composition according to claim 5 for controlling diseases on crops.
7. The use according to claim 6, wherein said diseases comprise: canker, bakanae disease, fusarium wilt, bacterial angular leaf spot, downy mildew, rice blast, early blight, scab, banded sclerotial blight, gray mold, rust disease, epidemic disease, brown spot, alternaria leaf spot, leaf mold, soft rot, false smut, damping off, leaf blight, black spot, anthracnose, brown spot and late blight.
8. Use according to claim 7, characterized in that the fungicidal composition is used for the control of citrus canker.
CN201911400805.4A 2019-12-30 2019-12-30 Bactericidal composition containing copper calcium sulfate Pending CN113115792A (en)

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Application publication date: 20210716