CN109497070B - Pesticide composition containing azoxystrobin and boscalid, preparation method and application thereof - Google Patents
Pesticide composition containing azoxystrobin and boscalid, preparation method and application thereof Download PDFInfo
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- CN109497070B CN109497070B CN201811586974.7A CN201811586974A CN109497070B CN 109497070 B CN109497070 B CN 109497070B CN 201811586974 A CN201811586974 A CN 201811586974A CN 109497070 B CN109497070 B CN 109497070B
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- boscalid
- azoxystrobin
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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
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
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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
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
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- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a pesticide composition containing azoxystrobin and boscalid, a preparation method and application thereof, wherein an azoxystrobin raw drug with the mass concentration of 90% and a boscalid raw drug with the mass concentration of 85% are respectively prepared into 1 × 10 by using methanol4Storing the mother liquor of mg/L at a low temperature of 4 ℃; respectively preparing the mother liquor into a liquid medicine containing 40-300 mg/L azoxystrobin and a liquid medicine containing 100-400 mg/L boscalid by using 0.1% of Tween 20; the pesticide liquid containing 40-300 mg/L of azoxystrobin and the pesticide liquid containing 100-400 mg/L of boscalid are mixed in equal volume, and the prepared composition contains 20-150 mg/L of azoxystrobin and 50-200 mg/L of boscalid. The invention can prevent and treat the mildew and rot of tobacco leaves in the baking period, has strong bactericidal activity and is environment-friendly.
Description
Technical Field
The invention relates to the technical field of biology, in particular to a pesticide composition containing azoxystrobin and boscalid, a preparation method of the pesticide composition containing azoxystrobin and boscalid, and application of the pesticide composition containing azoxystrobin and boscalid in preventing and treating rotten diseases of tobacco leaves in a baking period.
Background
Tobacco leaf mildew disease (tobaco pole rot) caused by Rhizopus oryzae Went et al pr. gel is a fungal disease which is easy to appear in the tobacco curing period, mainly occurs in the tobacco leaf yellowing period, usually white hypha appears at the stem base, black spores are quickly generated, and further spread to harm. In the process of baking tobacco leaves in the bulk curing barn, the bulk curing barn has the advantages of small space, high temperature, high humidity and fast air flow, and is beneficial to the occurrence and the popularization of the diseases. The disease has the characteristics of strong explosiveness and harmfulness, the incidence rate is up to 100 percent in serious cases, and the quality of the flue-cured tobacco leaves is reduced, the yield is reduced, and the benefits of tobacco growers are damaged. Rhizopus oryzae (Zygomycota), a Rhizopus (Rhizopus) fungus, which produces large numbers of cystospores during growth. As a plant pathogen, sporangiospores thereof can rapidly spread from an infected flue-curing barn to a peripheral flue-curing barn in the tobacco curing process, so that the tobacco mildew disease is epidemic. The inhibition of the germination of pathogenic bacteria spores is one of the key measures for preventing and treating the mildew and rot disease of tobacco leaves; in addition, the inhibition of the growth of pathogenic bacteria hyphae in leaves is the second key measure for preventing and treating the diseases.
At present, exploratory reports appear on the research on the prevention and treatment of the mildew disease of tobacco leaves. Chinese patent publication No. CN103404962A discloses a method for preventing flue-curing of tobacco leaves during the curing process of tobacco leaves, emphasizing that the wind direction is changed to properly reduce the humidity in the curing barn, but does not suggest a specific operation mode to reduce the humidity in the curing barn. Chinese patent publication No. CN202653141U discloses a wind direction change control system of a flue-cured tobacco curing barn, which emphasizes a regulation method for adjusting the wind direction of a fan among a yellowing period, a color fixing period and a tendon drying period, and further reduces the humidity of the curing barn to reduce the mildew and rot diseases of tobacco leaves in the curing barn. The Chinese invention patent CN102068028A discloses an airflow alternate operation type flue-cured tobacco intensive curing barn curing process, which also prevents and controls the mildew and rot disease of tobacco leaves by enhancing air flow and dehumidifying. Chinese patent publication No. CN106418640A discloses a method for preventing and treating mildew and rot of tobacco leaves during the baking process in an air-lift bulk curing barn, which is also based on the principle of adjusting the air flow speed to achieve the effects of removing moisture and reducing the occurrence of diseases. In a word, the related methods for preventing and controlling the tobacco leaf rotten disease are based on the change of the baking process flow, the tobacco leaf rotten disease is prevented and controlled by reducing the humidity in the baking room, the tobacco leaf baking technology is required to be skilled, and the requirement on the technical level of a baking worker is high. If the operation is improper, the tobacco leaf curing of the full curing barn can be failed, and serious economic loss is caused.
Chemical control is the most economical and effective main measure in a plurality of control methods for controlling plant diseases. Therefore, an efficient and safe pesticide combination is found, and the pesticide combination is used for the parts (petioles) with diseases easily caused by tobacco leaves in various airflow type bulk curing barn, is used for preventing and treating the rotten diseases of the cured tobacco leaves, can ensure the safety of the tobacco leaves, improve the yield and quality of the tobacco leaves, reduce the economic loss of tobacco growers, has wide application space, and is also the requirement of the safe and sustainable development of the tobacco.
Disclosure of Invention
The invention aims to overcome the defects and provide the pesticide composition containing the azoxystrobin and the boscalid, which can prevent and treat the mildew and rot disease of tobacco leaves in the baking period, has strong bactericidal activity, is environment-friendly and has low cost.
The invention also aims to provide a preparation method of the pesticide composition containing azoxystrobin and boscalid.
The invention also aims to provide application of the pesticide composition containing azoxystrobin and boscalid in preventing and treating rotten diseases of tobacco leaves in the baking period.
The invention relates to a pesticide composition containing azoxystrobin and boscalid, wherein the pesticide composition comprises the following components in parts by weight: the azoxystrobin content is 20-150 mg/L, and the boscalid content is 50-200 mg/L.
The pesticide composition containing azoxystrobin and boscalid comprises the following components in parts by weight: preferably, the azoxystrobin is 40-100 mg/L, and the boscalid is 60-150 mg/L.
The pesticide composition containing azoxystrobin and boscalid comprises the following components in parts by weight: the azoxystrobin is a pesticide raw material with the mass concentration of 90%, and the boscalid is a pesticide raw material with the mass concentration of 85%.
The preparation method of the pesticide composition containing azoxystrobin and boscalid comprises the following steps:
(1) respectively preparing an azoxystrobin raw drug with the mass concentration of 90% and a boscalid raw drug with the mass concentration of 85% into 1 × 10 by using methanol4Preserving the mother liquor of mg/L at a low temperature of 4 ℃ for later use;
(2) respectively preparing the mother liquor into a liquid medicine containing 40-300 mg/L azoxystrobin and a liquid medicine containing 100-400 mg/L boscalid by using 0.1% of Tween 20;
(3) the pesticide liquid containing 40-300 mg/L of azoxystrobin and the pesticide liquid containing 100-400 mg/L of boscalid are mixed in equal volume, and the prepared composition contains 20-150 mg/L of azoxystrobin and 50-200 mg/L of boscalid.
The pesticide composition containing azoxystrobin and boscalid is used for preventing and treating the mildew and rot disease of tobacco leaves in the baking period.
Compared with the prior art, the invention has obvious beneficial effects, and the technical scheme can show that: in the invention, azoxystrobin and boscalid are respectively prepared into mother liquor by using methanol, and are diluted by using sterile water containing 0.1% of Tween 20 when in use. The composition can be sprayed directly to the tobacco petiole after picking, or sprayed to the petiole after binding rod and before going to kang, or sprayed directly to the petiole after going to kang. Aiming at the action site of the target fungus of the tobacco leaf rotten disease, the invention inhibits the infection of pathogenic bacteria, inhibits the generation and the germination of pathogenic bacteria spores and reduces the re-infection circulation times of the diseases. The azoxystrobin and the boscalid do not generate chemical reaction, so that the synergistic or additive effect is obvious, the sterilizing effect is obviously improved compared with that of a single agent, the medicine cost can be reduced, and the environmental pollution is reduced; can reduce the potential drug resistance risk of pathogenic bacteria to the azoxystrobin and the boscalid, and has the effect of treating other pathogenic bacteria causing the tobacco mildew disease. The in vivo test shows that the composition of the azoxystrobin and the boscalid has good control effect on the rotten disease of the flue-cured tobacco leaves, and can be used for the disinfection treatment of the surrounding environment of a curing barn. The control effect of the tobacco rot disease is better than the disinfection effect of the single action of the azoxystrobin and the single action of the boscalid.
Detailed Description
Example 1
A preparation method of a pesticide composition containing azoxystrobin and boscalid comprises the following steps:
(1) respectively preparing azoxystrobin with the mass concentration of 90% and boscalid with the mass concentration of 85% into 1 × 10 by using methanol4Preserving the mother liquor of mg/L at a low temperature of 4 ℃ for later use;
(2) respectively preparing the mother liquor into a liquid medicine containing azoxystrobin 120mg/L and a liquid medicine containing boscalid 180mg/L by using 0.1% of tween 20;
(3) the azoxystrobin liquid medicine and the boscalid liquid medicine are mixed in equal volume, and the prepared composition contains 60mg/L azoxystrobin and 90mg/L boscalid.
Example 2
A preparation method of a pesticide composition containing azoxystrobin and boscalid comprises the following steps:
(1) respectively preparing an azoxystrobin raw drug with the mass concentration of 90% and a boscalid raw drug with the mass concentration of 85% into 1 × 10 by using methanol4And storing the mother liquor of mg/L at a low temperature of 4 ℃ for later use.
(2) And respectively preparing the mother liquor into a liquid medicine containing azoxystrobin 150mg/L and a liquid medicine containing boscalid 100mg/L by using 0.1% of Tween 20.
(3) The azoxystrobin liquid medicine and the boscalid liquid medicine are mixed in equal volume, and the prepared composition contains 75mg/L azoxystrobin and 50mg/L boscalid.
Example 3
A preparation method of a pesticide composition containing azoxystrobin and boscalid comprises the following steps:
(1) respectively preparing an azoxystrobin raw drug with the mass concentration of 90% and a boscalid raw drug with the mass concentration of 85% into 1 × 10 by using methanol4And storing the mother liquor of mg/L at a low temperature of 4 ℃ for later use.
(2) And respectively preparing the mother liquor into a liquid medicine containing azoxystrobin at 80mg/L and a liquid medicine containing boscalid at 200mg/L by using 0.1% of Tween 20.
(3) The azoxystrobin liquid medicine and the boscalid liquid medicine are mixed in equal volume, and the prepared composition contains 40mg/L azoxystrobin and 100mg/L boscalid.
Test example: test of pesticide composition of azoxystrobin and boscalid prepared in examples 1 to 3 for controlling rotten disease of flue-cured tobacco leaves
Collecting mature tobacco leaves (Yunyan 87), binding the tobacco leaves according to a normal baking procedure, and isolating the tobacco leaves by adopting a plastic film to expose the petiole part.
Treating a pesticide composition containing azoxystrobin and boscalid: the liquid medicine of the composition in the embodiment is uniformly sprayed to the tobacco leaf stalks bound with the rods by a sprayer, and the liquid medicine is dried and then put on a kang for baking in a normal procedure.
And (4) comparison treatment: spraying clear water uniformly to the tobacco petioles bound with the rods by using a sprayer, airing, putting into a kang, and baking in a normal procedure.
After baking, investigating the influence of each treatment on the occurrence of the mildew and rot disease of the tobacco leaves, measuring the length of disease spots at the leaf stalks, counting the disease incidence, and calculating the disease control effect of each treatment of the medicament composition according to the length of the disease spots.
The test result of the tobacco leaf rotten disease prevention effect shows that the pesticide composition containing azoxystrobin and boscalid can well prevent and treat the rotten disease of the baked tobacco leaves, and the disease prevention and treatment effect reaches over 94.03 percent.
TABLE 1 control of mildew disease of flue-cured tobacco by pesticidal compositions of examples 1-3
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the present invention without departing from the technical spirit of the present invention.
Claims (1)
1. Application of a pesticide composition containing azoxystrobin and boscalid in preventing and treating rotten diseases of tobacco leaves in a baking period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811586974.7A CN109497070B (en) | 2018-12-25 | 2018-12-25 | Pesticide composition containing azoxystrobin and boscalid, preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811586974.7A CN109497070B (en) | 2018-12-25 | 2018-12-25 | Pesticide composition containing azoxystrobin and boscalid, preparation method and application thereof |
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| Publication Number | Publication Date |
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| CN109497070A CN109497070A (en) | 2019-03-22 |
| CN109497070B true CN109497070B (en) | 2021-04-02 |
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| CN201811586974.7A Active CN109497070B (en) | 2018-12-25 | 2018-12-25 | Pesticide composition containing azoxystrobin and boscalid, preparation method and application thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107771815A (en) * | 2016-08-29 | 2018-03-09 | 南京华洲药业有限公司 | A kind of bactericidal composition and its application containing Boscalid and Fluoxastrobin |
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- 2018-12-25 CN CN201811586974.7A patent/CN109497070B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107771815A (en) * | 2016-08-29 | 2018-03-09 | 南京华洲药业有限公司 | A kind of bactericidal composition and its application containing Boscalid and Fluoxastrobin |
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| CN109497070A (en) | 2019-03-22 |
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