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CN116746585A - Sterilization composition containing pyraclostrobin - Google Patents

Sterilization composition containing pyraclostrobin Download PDF

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Publication number
CN116746585A
CN116746585A CN202310858919.3A CN202310858919A CN116746585A CN 116746585 A CN116746585 A CN 116746585A CN 202310858919 A CN202310858919 A CN 202310858919A CN 116746585 A CN116746585 A CN 116746585A
Authority
CN
China
Prior art keywords
pyraclostrobin
bactericidal composition
late blight
composition containing
fluorothiazole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310858919.3A
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Chinese (zh)
Inventor
段刚峰
王芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Huisheng Agricultural Technology Co ltd
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Beijing Huisheng Agricultural Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Beijing Huisheng Agricultural Technology Co ltd filed Critical Beijing Huisheng Agricultural Technology Co ltd
Priority to CN202310858919.3A priority Critical patent/CN116746585A/en
Publication of CN116746585A publication Critical patent/CN116746585A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N47/00Biocides, 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
    • A01N47/08Biocides, 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
    • A01N47/10Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
    • A01N47/24Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing the groups, or; Thio analogues thereof
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72Biocides, 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
    • A01N43/80Biocides, 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
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01PBIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P3/00Fungicides

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

Abstract

The invention relates to the technical field of pesticides, and provides a sterilization composition which contains active ingredients of oxathiapiprazole ethyl ketone and pyraclostrobin, wherein the weight percentage of the oxathiapiprazole ethyl ketone and the pyraclostrobin is 10:1-1:50. The invention also relates to the bactericidal composition for preventing and treating potato late blight and the like.

Description

Sterilization composition containing pyraclostrobin
Technical Field
The invention belongs to the technical field of pesticides, and relates to a bactericidal composition containing fluorothiazole pyraclostrobin and pyraclostrobin, which is used for preventing and treating potato late blight and the like.
Background
Fluothiapyr-diethyl ketone is the first piperidinyl thiazole isoxazoline bactericide developed by DuPont, has a unique action site on oomycete pathogenic bacteria, and achieves a bactericidal effect by inhibiting cholesterol oxide binding protein (OSBP). It has effects of preventing, treating and inhibiting spore production for pathogenic bacteria; it has no cross resistance with the existing bactericide, and has excellent prevention effect on downy mildew and epidemic diseases of crops such as melon, vegetable, potato, grape and the like. But the fluorothiazole has single action site, has medium and high level resistance risk and needs to be subjected to resistance management.
Pyraclostrobin is the most novel methoxy acrylic bactericide of Basiff company. Pyraclostrobin inhibits the activity of mitochondrial respiratory chain complex enzyme III (ubiquinone-cytochrome c oxidoreductase ) in pathogenic fungi, so that electrons cannot be transferred from ubiquinone to cytochrome c, and bacterial ATP cannot be normally synthesized, and finally the bacterial cells die due to energy deficiency. It can control most diseases of ascomycetes, basidiomycetes, semi-known fungus, oomycetes, etc. Has strong inhibiting effect on spore germination and mycelium growth in leaves, and has protective and therapeutic activities. Has permeability and local systemic activity, long lasting period and rain wash resistance. Is widely used for preventing and controlling diseases of wheat, rice, peanut, grape, vegetable, potato, banana, lemon, coffee, fruit tree, walnut, tea tree, tobacco, ornamental plant, lawn and other field crops. The compound is not only low in toxicity, safe to non-target organisms, but also safe and friendly to both the user and the environment, and has been classified by the U.S. EPA as a "risk-reducing candidate agent".
There is no report in the prior art about the combined use of fluorothiazole and pyraclostrobin.
Disclosure of Invention
The invention aims to provide a bactericidal composition which has obvious synergistic effect and can delay resistance and reduce the use amount.
In order to solve the problems, the invention adopts the following technical scheme:
the bactericidal composition containing the fluorothiazole and the pyraclostrobin comprises the active ingredients of the fluorothiazole and the pyraclostrobin, and the mass ratio of the fluorothiazole to the pyraclostrobin is 10:1-1:50. Preferably, the mass ratio of the oxathiapiprazole ethyl to the pyraclostrobin is 1:20-1:40. The mass ratio of the more preferable oxathiapiprazole ethyl to the pyraclostrobin is 1:30.
The weight percentage of the active ingredients in the bactericidal composition is 5-80%. The preferred weight percentage of active ingredient is 10-50%.
The bactericidal composition has remarkable effect on preventing and treating potato late blight, and the performance of the bactericidal composition is obviously better than that of a single dose.
The invention has the advantages that: the two components are compounded, the synergistic effect is obvious in a certain range, the dosage can be reduced, and the cost can be reduced; resistance can be delayed; high safety, environmental protection.
Description of the embodiments
The invention is illustrated by the following specific examples, but is by no means limited thereto, in order to make the objects, technical solutions and advantages of the invention more apparent. The percentages in the examples are by weight.
Embodiment 1: indoor toxicity determination test for potato late blight by compounding fluorothiazole pyrithione and pyraclostrobin
Test materials:
potato late blight germPhytophthora infestans) The method comprises the steps of carrying out a first treatment on the surface of the And (5) field collection and identification, and indoor living body culture preservation.
The testing method comprises the following steps:
referring to pesticide indoor biological test criterion bactericide, the inhibition rate of the single agent to be tested on potato late blight is measured by adopting a hypha growth rate method. Under the aseptic operation condition, a sterilized triangular flask (with the calibration quantity of 50 mL) which is calibrated accurately in advance is respectively added with liquid medicines with different concentrations of 2.0 mL by a liquid transfer device, then a culture medium which is melted and cooled to a proper temperature is added into the triangular flask to a calibrated scale mark of 50 mL, and the culture medium is poured into 4 culture dishes (phi 9 cm) in equal quantity after being shaken uniformly, so that a medicine-containing oat plate with corresponding concentration is prepared. Then, the potato late blight bacteria which are cultivated in advance are inoculated in the center of a medicine-containing flat plate by an inoculator by cutting a bacterial cake from the edge of a bacterial colony by a sterilization puncher with phi 5 mm under the aseptic condition, the mycelium surface is upward, a dish cover is covered, and the potato late blight bacteria are placed in a biochemical incubator with the relative humidity of 80% at 22+/-1 ℃ for dark cultivation, and the test result is observed. Stopping the test when the colony grows to the size of 2/3-4/5 of the diameter of the culture dish according to the control group treatment culture dish, measuring the colony growth diameter of the test bacteria by using a crisscross method, and calculating the hypha growth inhibition rate of each treatment concentration on the test strain according to the measurement result.
Hypha growth inhibition (%) = (control colony growth diameter-treated colony growth diameter)/control colony growth diameter×100
Then DPS data processing software is used for calculating test results, and respectively solving virulence regression equations, EC of single test medicament and mixed medicaments with different proportions 50 And EC (EC) 90 And comparing synergistic conditions, and calculating the co-toxicity coefficient (CTC) of the compound medicament mixture according to a grand cloud Pei method. The co-toxicity coefficient (CTC) is calculated as follows:
actual measurement of virulence index (ATI)= (EC of standard pharmaceutical agent 50 EC of test agent 50 ) × 100
Theoretical Toxicity Index (TTI) =toxicity index of agent a x percent of agent a in the mix + toxicity index of agent B x percent of agent B in the mix
Co-toxicity coefficient (CTC) = (ATI/TTI) ×100
According to the division standard of co-toxicity coefficient (CTC), CTC is less than or equal to 80 and is antagonism, CTC 80 is additive, CTC is greater than or equal to 120 and is synergistic.
Toxicity measurement results:
TABLE 1 results of indoor Combined toxicity measurements of Fluothiapyrad-ethyl and pyraclostrobin for potato late blight
Medicament and proportion Toxicity regression equation (Y=) EC 50 (mg/L) EC 90 (mg/L) Co-toxicity coefficient (CTC)
Fluothiazole pyridone (A) 1.7327x+10.6823 0.000525 0.002885 -
Pyraclostrobin (B) 1.6812x+5.5016 0.503105 2.910440 -
A:B(10:1) 1.61x+10.3633 0.000466 0.002916 123.92
A:B(1:1) 1.657x+10.0966 0.000840 0.004984 125.01
A:B(1:10) 1.6973x+8.9837 0.004498 0.025587 127.19
A:B(1:20) 1.5324x+8.205 0.008099 0.055560 133.46
A:B(1:30) 1.7683x+8.4338 0.011433 0.060657 138.15
A:B(1:40) 1.7242x+8.123 0.015442 0.085502 133.92
A:B(1:50) 1.6541x+7.8055 0.020131 0.119854 126.51
As can be seen from Table 1, when the fluzopyr-ethyl ketone and the pyraclostrobin are compounded within the range of 10:1-1:50, the co-toxicity coefficient (CTC) is more than 120, the synergistic effect is shown on potato late blight, and particularly when the mass ratio of the fluzopyr-ethyl ketone to the pyraclostrobin is 1:30, the compounding effect is optimal.
In conclusion, the sterilizing composition of the invention is compounded by the oxathiapiprazole and the pyraclostrobin, has remarkable synergism on potato late blight, expands a sterilizing spectrum, can delay resistance, is safe to crops, can reduce dosage, and is safe to environment.

Claims (6)

1. The bactericidal composition containing pyraclostrobin is characterized in that the active ingredients comprise fluorothiazole pyraclostrobin and pyraclostrobin, and the mass ratio of the fluorothiazole pyraclostrobin to the pyraclostrobin is 10:1-1:50.
2. The sterilization composition according to claim 1, wherein the mass ratio of the oxathiapiprazole ethyl to the pyraclostrobin is 1:20-1:40.
3. The bactericidal composition of claim 1, wherein the mass ratio of the oxathiapiprolin to the pyraclostrobin is 1:30.
4. A bactericidal composition according to any of claims 1-3, wherein the active ingredient is present in an amount of 5-80% by weight.
5. The bactericidal composition of claim 4, wherein the active ingredient is present in an amount of 10 to 50% by weight.
6. The bactericidal composition according to any one of claims 1 to 5 for controlling potato late blight and the like.
CN202310858919.3A 2023-07-13 2023-07-13 Sterilization composition containing pyraclostrobin Pending CN116746585A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310858919.3A CN116746585A (en) 2023-07-13 2023-07-13 Sterilization composition containing pyraclostrobin

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Application Number Priority Date Filing Date Title
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120034315A1 (en) * 2009-04-22 2012-02-09 E.I. Du Pont De Nemours And Company Solid forms of an azocyclic amide
CN104642360A (en) * 2013-11-19 2015-05-27 陕西汤普森生物科技有限公司 Sterilization composition containing fluorothiazole pyriethanone and methoxyl acrylate
CN104663674A (en) * 2007-10-23 2015-06-03 杜邦公司 Fungicidal Mixtures
CN108450471A (en) * 2018-03-12 2018-08-28 佛山市盈辉作物科学有限公司 A kind of seed coat agent containing fluorine azoles bacterium aniline, pyraclostrobin and fluorine thiazole pyrrole ethyl ketone

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104663674A (en) * 2007-10-23 2015-06-03 杜邦公司 Fungicidal Mixtures
US20120034315A1 (en) * 2009-04-22 2012-02-09 E.I. Du Pont De Nemours And Company Solid forms of an azocyclic amide
CN102459256A (en) * 2009-04-22 2012-05-16 纳幕尔杜邦公司 Solid forms of an azocyclic amide
CN104642360A (en) * 2013-11-19 2015-05-27 陕西汤普森生物科技有限公司 Sterilization composition containing fluorothiazole pyriethanone and methoxyl acrylate
CN107125247A (en) * 2013-11-19 2017-09-05 陕西汤普森生物科技有限公司 A kind of bactericidal composition of fluorine-containing thiazole pyrrole ethyl ketone and methoxy acrylic
CN108450471A (en) * 2018-03-12 2018-08-28 佛山市盈辉作物科学有限公司 A kind of seed coat agent containing fluorine azoles bacterium aniline, pyraclostrobin and fluorine thiazole pyrrole ethyl ketone

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