CN109169711B - Bactericidal composition containing shenqinmycin and pyriofenone - Google Patents
Bactericidal composition containing shenqinmycin and pyriofenone Download PDFInfo
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- CN109169711B CN109169711B CN201810864687.1A CN201810864687A CN109169711B CN 109169711 B CN109169711 B CN 109169711B CN 201810864687 A CN201810864687 A CN 201810864687A CN 109169711 B CN109169711 B CN 109169711B
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- Prior art keywords
- pyriofenone
- shenqinmycin
- pesticide
- bactericidal composition
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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
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
- A01N63/10—Animals; Substances produced thereby or obtained therefrom
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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
Abstract
The invention discloses a bactericidal composition containing shenqinmycin and pyriofenone, wherein the weight ratio of shenqinmycin to pyriofenone is 1:40-40: 1; the bactericidal composition can be used for preventing and treating diseases of various crops, and is particularly used for preventing and treating downy mildew. The bactericide composition has the advantages of synergism, small environmental pollution, capability of delaying the generation of drug resistance of pathogenic bacteria and the like.
Description
Technical Field
The invention belongs to the technical field of pesticides, and particularly relates to a bactericidal composition containing shenqinmycin and pyriofenone.
Background
The shenqinmycin is an antibiotic secreted by pseudomonas fluorescens through biological culture, has double functions of inhibiting plant pathogenic bacteria in a broad spectrum and promoting plant growth, has the characteristics of broad spectrum and high efficiency, and can effectively prevent and treat blight, gummy stem blight, epidemic disease, banded sclerotial blight, false smut, rice blast, downy mildew, stripe rust, sclerotinia, gibberellic disease, anthracnose, gray mold, scab, leaf spot, bacterial wilt, ulcer disease, ginger blast and soil-borne disease soil treatment on crops such as rice, wheat and vegetables.
Pyriofenone is diaryl ketone bactericide with molecular formula C18H20ClNO5Pyriofenone is effective in controlling powdery mildew of cereals, cucumbers and vegetables. However, Pyriofenone is currently expensive to produce and use, and has a great risk of resistance even when used alone for a long time.
The long-term single use of the bactericide can cause the increase of the drug resistance of pathogenic bacteria, the continuous increase of the dosage and serious environmental pollution. The synergistic bactericidal composition can greatly improve the control effect, reduce the dosage and reduce the cost, can also avoid the generation of resistance of plant pathogenic bacteria and delay the generation speed of the resistance, and is an effective way for solving the problems of the resistance and the cost when the pesticide is used singly. Therefore, the development of the bactericidal composition with the synergistic effect on fungal diseases is of great significance. In the prior art, no report about compounding of shenqinmycin and pyriofenone is provided.
Disclosure of Invention
In order to overcome the defects of large dosage of medicament, serious environmental pollution, high generation speed of germ resistance and the like of the single bactericide, the invention aims to provide the agricultural bactericidal composition which has reasonable components, obvious synergistic effect, good bactericidal effect, low medication cost, difficult generation of drug resistance and safety to crops. The technical scheme provided by the invention is as follows:
a sterilization composition containing shenqinmycin and pyriofenone is prepared by compounding shenqinmycin and pyriofenone as active ingredients.
Preferably, the weight ratio of the shenqinmycin to the pyriofenone is 1:40-40: 1.
Preferably, the weight ratio of the shenqinmycin to the pyriofenone is 1:30-20: 1.
The invention also provides a pesticide preparation containing the bactericidal composition, the weight of the shenqinmycin and the pyriofenone accounts for 5-70% of the total weight of the pesticide preparation, and the balance is auxiliary ingredients, solvents or fillers acceptable in pesticides.
Preferably, the weight of the shenqinmycin and the pyriofenone accounts for 20-60% of the total weight of the pesticide preparation, and the balance is auxiliary ingredients, solvents or fillers acceptable in pesticides.
Preferably, the pesticide preparation is in the dosage form of wettable powder, water dispersible granules, suspending agents, granules or aqueous emulsion and the like.
The adjuvants used in the pesticide preparation of the present invention include solvents, dispersants, emulsifiers, stabilizers, antifreezes, film formers, wetting agents, and the like, and other known substances useful for stabilizing the active ingredients in the preparation and exerting the medicinal effects, are various ingredients commonly used or allowed to be used in the pesticide preparation, are not particularly limited, and the specific ingredients and amounts thereof are determined by simple experiments according to the formulation requirements.
The bactericidal composition is applied to preventing and treating various diseases of crops such as rice, wheat, vegetables, fruit trees and the like, and is particularly suitable for preventing and treating downy mildew, powdery mildew and the like. The compositions of the invention can also be applied in the usual manner, for example by pouring, spraying, spreading, the application rate varying with weather conditions or crop conditions.
Compared with the prior art, the invention has the following beneficial effects:
the invention has reasonable components, good bactericidal effect and low medication cost, has obvious synergistic effect instead of simple superposition of the activities of the components, has good safety to crops and meets the safety requirement of pesticide preparations. The invention has good control effect on the downy mildew of crops.
Detailed Description
The following detailed description of specific embodiments of the present invention is provided in conjunction with examples, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Example 1 determination of indoor toxicity of shenqinmycin and pyriofenone combination to cucumber downy mildew
Test subjects: cucumber downy mildew
The test adopts a cucumber downy mildew pot culture measuring method, on the basis of a preparation test, 2 cucumber seedlings with the same true leaf period and growth vigor are selected, oil marker pens are used for writing label numbers, the label numbers are inserted into pots of the potted cucumber seedlings, the cucumber seedlings are sequentially discharged, a leaf surface spraying method is adopted, the reagent is sprayed on the leaves of the cucumber seedlings, and after spraying treatment, the test material is inoculated in a fume hood or a greenhouse after being dried in the shade for 24 hours. Culturing in greenhouse for 7 days, investigating preventing and treating effect, calculating preventing and treating effect according to disease index, performing statistical analysis by DPS data processing software, calculating EC50 of each drug, and calculating co-toxicity coefficient (CTC) according to Sun cloud Peel method. The specific measurement results are shown in Table 1.
When the CTC is less than or equal to 80, the composition shows antagonism, when the CTC is more than 80 and less than 120, the composition shows additive action, and when the CTC is more than or equal to 120, the composition shows synergistic action.
Observed virulence index (ATI) ═ standard agent EC 50/test agent EC50 × 100
Theoretical virulence index (TTI) ═ A percent virulence index × of agent(s) and + B percent virulence index × of agent(s)
The cotoxicity coefficient (CTC) ═ × 100 [ measured virulence index (ATI)/theoretical virulence index (TTI) of the mixture ].
TABLE 1 determination of virulence of shenqinmycin and pyriofenone against cucumber downy mildew
As can be seen from Table 1, the combination of shenqinmycin and pyriofenone can be effectively used for preventing and treating cucumber downy mildew, and particularly, when the ratio of shenqinmycin to pyriofenone is in the range of 1:3-20:1, the composition has a synergistic effect on cucumber downy mildew, and the CTC value is more than 120. Preferably, the ratio of the shenqinmycin to the pyriofenone is 1:10, 1:1 and 5:1, and the synergistic effect is obvious.
Example 2 formulation example formulation
Preparation 1: 33% aqueous emulsion of shenqinmycin-pyriofenone
Preparation 2: 40% shenqinmycin pyriofenone suspension
Preparation 3: 65% wettable powder of shenqinmycin-pyriofenone
Preparation 4: 50% shenqinmycin-pyriofenone water dispersible granule
Example 3 field control of shenqinmycin and pyriofenone against grape downy mildew
Test subjects: downy mildew of grape
The test method comprises the following steps: each cell area was 66.7m2, repeated 3 times; the pesticide effect method for investigation before pesticide application and investigation after prevention and treatment comprises the following steps: randomly sampling 5 points in the test treatment area, grading the disease condition according to the relevant standards of the national field test, and calculating the control effect.
Test agents:
TABLE 2 field control of shenqinmycin and pyriofenone against grape downy mildew
As can be seen from Table 2, the shenqinmycin and the pyriofenone have good control effects on the grape downy mildew, the control effect of the composition is obviously superior to that of a single agent, and the medicament is safe to crops.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (4)
1. The bactericidal composition containing shenqinmycin and pyriofenone is characterized in that: the shenqinmycin and pyriofenone compound preparation is prepared by compounding effective components of shenqinmycin and pyriofenone, wherein the weight ratio of the shenqinmycin to the pyriofenone is 1:30-20: 1.
2. A pesticidal formulation comprising the fungicidal composition of claim 1, characterized in that: the weight of the shenqinmycin and the pyriofenone accounts for 5 to 70 percent of the total weight of the pesticide preparation, and the balance is auxiliary ingredients, auxiliary agents, solvents or fillers acceptable in pesticides.
3. The pesticide formulation according to claim 2, characterized in that: the weight of the shenqinmycin and the pyriofenone accounts for 20-60% of the total weight of the pesticide preparation, and the balance is auxiliary ingredients, such as auxiliary agents, solvents or fillers acceptable in pesticides.
4. The pesticide formulation according to claim 3, characterized in that: the pesticide preparation is in the dosage forms of wettable powder, water dispersible granules, suspending agents, granules or aqueous emulsion and the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810864687.1A CN109169711B (en) | 2018-08-01 | 2018-08-01 | Bactericidal composition containing shenqinmycin and pyriofenone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810864687.1A CN109169711B (en) | 2018-08-01 | 2018-08-01 | Bactericidal composition containing shenqinmycin and pyriofenone |
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| Publication Number | Publication Date |
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| CN109169711A CN109169711A (en) | 2019-01-11 |
| CN109169711B true CN109169711B (en) | 2020-08-07 |
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| CN201810864687.1A Active CN109169711B (en) | 2018-08-01 | 2018-08-01 | Bactericidal composition containing shenqinmycin and pyriofenone |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107094776A (en) * | 2017-05-06 | 2017-08-29 | 北京科发伟业农药技术中心 | Bactericidal composition containing isotianil |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107094776A (en) * | 2017-05-06 | 2017-08-29 | 北京科发伟业农药技术中心 | Bactericidal composition containing isotianil |
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Effective date of registration: 20220126 Address after: 264400 north of Jiulong road and east of Wenchang Road, Wendeng District, Weihai City, Shandong Province Patentee after: Shandong Genyuan Biotechnology Co.,Ltd. Address before: 266000 Qingdao University of Science & Technology, 53 Zhengzhou Road, Shibei District, Qingdao, Shandong Patentee before: QINGDAO University OF SCIENCE AND TECHNOLOGY |
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Address after: 264400 north of Jiulong road and east of Wenchang Road, Wendeng District, Weihai City, Shandong Province Patentee after: Shandong Genyuan New Materials Co.,Ltd. Address before: 264400 north of Jiulong road and east of Wenchang Road, Wendeng District, Weihai City, Shandong Province Patentee before: Shandong Genyuan Biotechnology Co.,Ltd. |