CN111657294A - Thiram and sodium dichloroisocyanurate compound sterilization composition and application thereof - Google Patents
Thiram and sodium dichloroisocyanurate compound sterilization composition and application thereof Download PDFInfo
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- CN111657294A CN111657294A CN202010679022.0A CN202010679022A CN111657294A CN 111657294 A CN111657294 A CN 111657294A CN 202010679022 A CN202010679022 A CN 202010679022A CN 111657294 A CN111657294 A CN 111657294A
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- thiram
- sodium dichloroisocyanurate
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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
- 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
- A01N47/26—Oxidation products of dithiocarbamic acid derivatives, e.g. thiuram sulfides
-
- 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
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
-
- 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
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- 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 bactericidal composition containing thiram and sodium dichloroisocyanurate and application thereof, belonging to the technical field of pesticides. The active components of the bactericidal composition are thiram and sodium dichloroisocyanurate, and the thiram and the sodium dichloroisocyanurate are mixed with an auxiliary agent and a filler to prepare water dispersible granules or wettable powder, so that the bactericidal composition has an obvious synergistic effect on prevention and treatment of various plant diseases such as downy mildew, anthracnose, blight and the like, has good safety on crops, meets the safety requirement of pesticide preparations, and can remarkably improve the prevention and treatment effect.
Description
Technical Field
The invention belongs to the technical field of pesticides, and particularly relates to a thiram and sodium dichloroisocyanurate compound sterilization composition and application thereof.
Background
Thiram is a dithiocarbamate bactericidal composition and has the characteristics of low cost, wide bactericidal spectrum, multiple action sites, difficult generation of drug resistance of pathogenic bacteria, continuity and protection. The acute oral half lethal dose LD50 of the thiram raw powder rat is 780-865 mg/kg, and the acute oral LD50 of the mouse is 1500-2000 mg/kg. Is toxic to fish, and bee, and has irritation to human skin and mucosa.
The dichloroisocyanuric acid is a novel systemic bactericidal composition with high efficiency, broad spectrum and strong bactericidal action, and the bactericidal rate reaches 99 percent at 20ppm, so that various bacteria, algae, fungi and germs can be killed. The sodium dichloroisocyanurate has stable chemical property, the reduction of available chlorine does not exceed 1 percent within half a year of storage under a dry condition, and the sodium dichloroisocyanurate is convenient to store and transport, safe and simple to use, low in dosage and long in pesticide effect duration. The action mechanism is as follows: when the microbial fertilizer is sprayed on the surface of crops, hypochlorous acid can be slowly released, and pathogenic bacteria can rapidly die by denaturing mycoprotein, changing membrane permeability, interfering physiological and biochemical processes of an enzyme system, influencing DNA synthesis and the like.
At present, the prevention and control difficulty of diseases such as downy mildew, anthracnose, blight and the like of fruits and vegetables is increasingly high, on one hand, with the change of a planting structure, the planting area of crops such as the fruits and the vegetables is gradually enlarged, the occurrence degree and the occurrence quantity of the diseases are improved, and the prevention and control difficulty is increased; on the other hand, the resistance of pathogenic bacteria is increased year by year under the continuous medicament selection pressure, the control effect of a single medicament is greatly reduced, and the control of plant diseases faces important challenges.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a thiram and sodium dichloroisocyanurate compound sterilization composition and application thereof, which can well prevent and treat downy mildew, anthracnose and blight.
In order to achieve the purpose, the active ingredients of the thiram and sodium dichloroisocyanurate compound sterilization composition provided by the invention are thiram and sodium dichloroisocyanurate.
Further, the weight ratio of the thiram to the sodium dichloroisocyanurate is 1: 1-3: 1.
In order to realize the purpose, the invention also provides a bactericide, which comprises the thiram and sodium dichloroisocyanurate compound bactericidal composition, an auxiliary agent and a filler.
Further, the weight percentages of the components are as follows: the thiram and sodium dichloroisocyanurate compound sterilization composition is 32-80%, the auxiliary agent is 5-30%, and the balance is the filler.
Further, the bactericide is prepared into water-dispersible granules or wettable powder.
Further, the weight percentages of the components are as follows: 32-80% of thiram and sodium dichloroisocyanurate compound sterilization composition, 3-15% of wetting agent, 2-15% of dispersing agent and the balance of filler.
Further, the wetting agent comprises at least one of sodium dodecyl benzene sulfonate, alkylphenol polyoxyethylene, sodium dodecyl sulfate and saponin powder; the dispersant comprises at least one of lignosulfonate, naphthalenesulfonate, polycarboxylate and benzene sulfonate.
Further, the weight percentages of the components are as follows: 32-80% of thiram and sodium dichloroisocyanurate compound sterilization composition, 2-10% of wetting agent, 1-10% of dispersing agent, 1-5% of binder, 1-5% of disintegrating agent and the balance of filler.
Still further, the wetting agent comprises at least one of sodium dodecyl benzene sulfonate, alkylphenol ethoxylates, sodium dodecyl sulfate and Chinese honeylocust powder; the dispersant comprises at least one of lignosulfonate, naphthalenesulfonate, polycarboxylate and benzene sulfonate; the binder comprises at least one or more of maltodextrin, lactose and starch; the disintegrating agent comprises at least one of urea, ammonium sulfate, pyrrolidone and sodium carboxymethyl starch; the filler is at least one of light calcium, kaolin, bentonite and corn starch.
In order to realize the purpose, the invention also provides the application of the bactericide in preventing and treating plant downy mildew, anthracnose and blight.
The invention has the beneficial effects that:
1) compared with a single agent, the bactericidal composition has obvious synergistic action on various plant diseases such as downy mildew, anthracnose, blight and the like, and can obviously improve the control effect, and experiments show that the control effect of the bactericidal composition on cucumber anthracnose diseases can reach 98.84 percent to the maximum, the single control effect of 50 percent thiram wettable powder is 81.38 percent, and the single control effect of 40 percent sodium dichloroisocyanurate wettable powder is 71.16 percent, so that the thiram and sodium dichloroisocyanurate are compounded to have synergistic action;
2) the bactericidal composition can replace part of high-toxicity bactericidal compositions, thereby reducing the dosage and reducing the environmental pollution and the pesticide residue of agricultural products.
Detailed Description
The technical solution and effects of the present invention will be further explained with reference to specific embodiments. It should be understood that the following examples are only for illustrating and explaining the present invention and are not intended to limit the scope of the present invention.
In the following examples, the pharmaceutical agents and raw materials are not specifically described, and are derived from commercially available conventional products or products obtained by conventional methods.
Example 1
60% thiram-sodium dichloroisocyanurate water dispersible granule
Taking 30g thiram, 30g sodium dichloroisocyanurate, 6g sodium dodecyl sulfate, 6g lignosulfonate, 4g lactose, 5g ammonium sulfate and 19g corn starch, uniformly mixing, and carrying out ultramicro airflow crushing to obtain 650-mesh fine powder; and adding water into the fine powder, kneading, granulating, and drying for 1 hour at the temperature of 70 ℃ to obtain the 60% thiram-sodium dichloroisocyanurate water dispersible granule.
Example 2
50% thiram-sodium dichloroisocyanurate water dispersible granule
Taking 30g of thiram raw drug, 20g of sodium dichloroisocyanurate raw drug, 4g of alkylphenol polyoxyethylene, 6g of naphthalenesulfonate, 5g of maltodextrin, 2g of ammonium sulfate, 3g of urea and 30g of corn starch, uniformly mixing, and carrying out ultramicro airflow pulverization to obtain 650-mesh fine powder; and adding water into the fine powder, kneading, granulating, and drying at 70 ℃ for 1 hour to obtain the 50% thiram-sodium dichloroisocyanurate water dispersible granule.
Example 3
72% thiram-sodium dichloroisocyanurate water dispersible granule
Taking 48g thiram, 24g sodium dichloroisocyanurate, 4g sodium dodecyl sulfate, 4g lignosulfonate, 4g maltodextrin, 4g pyrrolidone and 12g corn starch, uniformly mixing, and carrying out ultramicro airflow crushing to obtain 650-mesh fine powder; and adding water into the fine powder, kneading, granulating, and drying for 1 hour at the temperature of 70 ℃ to obtain the 72% thiram-sodium dichloroisocyanurate water dispersible granule.
Example 4
64% thiram-sodium dichloroisocyanurate wettable powder
48g of thiram, 16g of sodium dichloroisocyanurate, 6g of sodium dodecyl benzene sulfonate, 10g of lignosulfonate and 20g of light calcium are taken, mixed uniformly and subjected to ultramicro airflow pulverization to obtain 650-mesh fine powder, namely 64% thiram-sodium dichloroisocyanurate wettable powder.
Example 5
80% thiram-sodium dichloroisocyanurate wettable powder
40g of thiram raw drug, 40g of sodium dichloroisocyanurate raw drug, 5g of Chinese honeylocust fruit powder, 8g of lignosulfonate and 7g of light calcium are uniformly mixed and subjected to ultramicro airflow pulverization to obtain 650-mesh fine powder, namely 80% thiram-sodium dichloroisocyanurate wettable powder.
Example 6
32% thiram-sodium dichloroisocyanurate wettable powder
20g of thiram, 12g of sodium dichloroisocyanurate, 8g of sodium dodecyl benzene sulfonate, 4g of lignosulfonate, 6g of naphthalenesulfonate and 50g of light calcium are taken, mixed uniformly and subjected to superfine airflow crushing to obtain 650-mesh fine powder, namely 32% thiram-sodium dichloroisocyanurate wettable powder.
In order to verify the actual effect of the fungicidal composition of the present invention, the following experiments are performed.
1. Experimental data
8 experimental groups and 1 control group are set in the experiment, wherein the experimental groups 1-6 are respectively from examples 1-6, the experimental group 7 is 50% thiram wettable powder of the bactericidal composition, the experimental group 8 is 40% sodium dichloroisocyanurate wettable powder of the bactericidal composition, and the control group is clear water;
2. experimental methods
Respectively treating strawberries, watermelons and cucumbers by adopting the experimental group 1-8 bactericidal composition and the control component;
3. statistics of results
After 21 days of application, the disease incidence of the crops treated by the experimental group and the control group is investigated, and the relative control effect is calculated according to the disease incidence index of the control area, and the results are respectively shown in tables 1, 2 and 3, wherein ga.i/ha is the gram of the pesticide active ingredient used per hectare.
TABLE 1 prevention and treatment Effect of strawberry disease
TABLE 2 prevention and treatment Effect of watermelon disease
TABLE 3 control Effect of cucumber diseases
As can be seen from the above tables 1-3, the thiram and the sodium dichloroisocyanurate are compounded, so that the thiram and the sodium dichloroisocyanurate have a synergistic effect, the prevention and control rate of downy mildew, anthracnose and blight is improved, an unexpected effect is obtained, and the thiram can be popularized and used; the bactericidal composition has less dosage and can replace part of the high-toxicity bactericidal composition, thereby reducing the environmental pollution and the pesticide residue of agricultural products. Therefore, the bactericidal composition has obvious synergistic effect on the prevention and treatment of various plant diseases such as downy mildew, anthracnose, blight and the like, and can obviously improve the prevention and treatment effect.
Example indoor virulence assay:
1. test agent
Thiram and sodium dichloroisocyanurate.
2. Test method
According to the standard method NY/T1156.2-2006 for biological detection, quantitative medicaments are added into the set concentration to prepare toxic culture media containing different doses and non-toxic culture media containing no medicaments. Then, a certain amount of cucumber downy mildew spore suspension is added into each culture medium respectively, and the mixture is placed in a shake incubator to be cultured for 96 hours in dark vibration at the temperature of 25 +/-1 ℃.
Measuring absorbance values of different treatments after culturing for 96 hours, taking a blank control of 3% checking liquid culture solution without inoculating bacteria as a reference, comparing with the control treatment without inoculating bacteria and adding liquid medicine to obtain relative bacteriostasis rate, and calculating EC of the compound agent and single agent according to the bacteriostasis rate50The value is obtained. The co-toxicity coefficients of the six combinations in the examples were calculated by Sun-johnson virulence index calculation.
3. Analysis of results
The synergistic effect of the mixed medicaments is evaluated according to a Sun-johnson virulence index calculation method by referring to a biological test standard method NY/T1156.6-2006, namely that the cotoxicity coefficient CTC is less than or equal to 80 and is antagonistic, the CTC is more than 80 and less than 120 and is additive, and the CTC is more than or equal to 120 and is synergistic.
The theoretical virulence index of the mixture is equal to the virulence index of the medicament A multiplied by 100 percent of the medicament A in the mixture and the virulence index of the medicament B multiplied by 100 percent of the medicament B in the mixture
TABLE 4 toxicity test results of Fridamite and sodium dichloroisocyanurate mixture for cucumber downy mildew
And (4) conclusion: examples 1-6 Folbimel was compounded with sodium dichloroisocyanurate (30: 30, 30: 20, 48: 24, 48: 16, 40: 40 and 20: 12) with co-toxicity coefficients of 129.45, 134.39, 138.84, 133.47, 132.56 and 125.32, respectively. 6 proportions of thiram and sodium dichloroisocyanurate (30: 30, 30: 20, 48: 24, 48: 16, 40: 40 and 20: 12)) are adopted, the cotoxicity coefficient is greater than 120, and the synergistic effect is achieved. Wherein both are measured at 48: 24 the synergistic effect is most obvious.
Evaluation: cucumber downy mildew is an important disease in cucumber production, and chemical agent control is the most economic and effective means at present. The mixture of thiram and sodium dichloroisocyanurate has excellent cucumber downy mildew inhibiting effect, obvious synergistic effect and low toxicity. Therefore, the thiram and the sodium dichloroisocyanurate are a better mixed combination.
Those of ordinary skill in the art will understand that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The thiram and sodium dichloroisocyanurate compound sterilization composition is characterized in that active ingredients of the sterilization composition are thiram and sodium dichloroisocyanurate.
2. The thiram and sodium dichloroisocyanurate compound sterilization composition as claimed in claim 1, wherein the weight ratio of the thiram to the sodium dichloroisocyanurate is 1: 1-3: 1.
3. A bactericide, which is characterized by comprising the thiram and sodium dichloroisocyanurate compound bactericidal composition as defined in claim 1 or 2, an auxiliary agent and a filler.
4. The bactericide as claimed in claim 3, which comprises the following components in percentage by weight: the thiram and sodium dichloroisocyanurate compound sterilization composition is 32-80%, the auxiliary agent is 5-30%, and the balance is the filler.
5. The bactericide as claimed in claim 3 or 4, which is prepared as an aqueous dispersion granule or wettable powder.
6. The bactericide as claimed in claim 3 or 4, wherein the constituents are, by weight: 32-80% of thiram and sodium dichloroisocyanurate compound sterilization composition, 3-15% of wetting agent, 2-15% of dispersing agent and the balance of filler.
7. The bactericide as claimed in claim 6, wherein the wetting agent comprises at least one of sodium dodecylbenzenesulfonate, alkylphenol ethoxylates, sodium dodecylsulfate, and powdered saponin; the dispersant comprises at least one of lignosulfonate, naphthalenesulfonate, polycarboxylate and benzene sulfonate.
8. The bactericide as claimed in claim 3 or 4, wherein the constituents are, by weight: 32-80% of thiram and sodium dichloroisocyanurate compound sterilization composition, 2-10% of wetting agent, 1-10% of dispersing agent, 1-5% of binder, 1-5% of disintegrating agent and the balance of filler.
9. The bactericide as claimed in claim 8, wherein the wetting agent comprises at least one of sodium dodecylbenzenesulfonate, alkylphenol ethoxylates, sodium dodecylsulfate, and powdered saponin; the dispersant comprises at least one of lignosulfonate, naphthalenesulfonate, polycarboxylate and benzene sulfonate; the binder comprises at least one or more of maltodextrin, lactose and starch; the disintegrating agent comprises at least one of urea, ammonium sulfate, pyrrolidone and sodium carboxymethyl starch; the filler is at least one of light calcium, kaolin, bentonite and corn starch.
10. The use of the fungicide according to claim 3 for the control of plant downy mildew, anthracnose, blight.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010679022.0A CN111657294A (en) | 2020-07-15 | 2020-07-15 | Thiram and sodium dichloroisocyanurate compound sterilization composition and application thereof |
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| CN202010679022.0A CN111657294A (en) | 2020-07-15 | 2020-07-15 | Thiram and sodium dichloroisocyanurate compound sterilization composition and application thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114904A (en) * | 1994-06-01 | 1996-01-17 | 山西省运城地区化学工业设计研究所奇星实验厂 | Disinfecting germicide |
| CN1228920A (en) * | 1999-01-25 | 1999-09-22 | 王玉亭 | Agricultural chemicals containing sodium dichloroisoyanurate soluble powder |
| CN101103728A (en) * | 2007-08-17 | 2008-01-16 | 王安林 | Agricultural sterilizing and disinfecting composition, preparation method and application thereof |
| CN105052989A (en) * | 2015-08-10 | 2015-11-18 | 呼伦贝尔生态产业技术研究院 | Bactericidal agent for edible funguses |
| CN110810401A (en) * | 2019-12-02 | 2020-02-21 | 贵州大学 | Dimethomorph and thiram bactericide, and preparation method and application thereof |
| CN110999916A (en) * | 2019-12-27 | 2020-04-14 | 利民化学有限责任公司 | Compound bactericide and application thereof |
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2020
- 2020-07-15 CN CN202010679022.0A patent/CN111657294A/en active Pending
Patent Citations (6)
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| CN1114904A (en) * | 1994-06-01 | 1996-01-17 | 山西省运城地区化学工业设计研究所奇星实验厂 | Disinfecting germicide |
| CN1228920A (en) * | 1999-01-25 | 1999-09-22 | 王玉亭 | Agricultural chemicals containing sodium dichloroisoyanurate soluble powder |
| CN101103728A (en) * | 2007-08-17 | 2008-01-16 | 王安林 | Agricultural sterilizing and disinfecting composition, preparation method and application thereof |
| CN105052989A (en) * | 2015-08-10 | 2015-11-18 | 呼伦贝尔生态产业技术研究院 | Bactericidal agent for edible funguses |
| CN110810401A (en) * | 2019-12-02 | 2020-02-21 | 贵州大学 | Dimethomorph and thiram bactericide, and preparation method and application thereof |
| CN110999916A (en) * | 2019-12-27 | 2020-04-14 | 利民化学有限责任公司 | Compound bactericide and application thereof |
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| Title |
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Application publication date: 20200915 |