CN103563948B - Bactericidal composition containing cyazofamid - Google Patents
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Abstract
The invention relates to a bactericidal composition containing cyazofamid, which comprises a decomposition-resisting factor and a component C, wherein a mass ratio of a component A, namely the cyazofamid to the decomposition-resisting factor to the component C is (3-50):(0.1-5):(3-60). The bactericidal composition is compounded by multiple active components, a matching ratio of the active components is adjusted, and a stabilizing agent is added, so that the compounded bactericidal composition has a more excellent control effect on an oomycetes disease; action mechanisms of the active components in the bactericidal composition are different, so that pesticide toxicity resistance generation can be avoided, and a generation speed of disease pesticide resistance can be postponed; the bactericidal composition can prevent and expand a bactericidal spectrum, can greatly reduce the pesticide consumption and the use cost, is safer to crops, and can reduce environmental pollution.
Description
Technical field
The present invention relates to a kind of bactericidal composition containing cyazofamid, belong to field of pesticide preparation.
Background technology
All the time, due to reasons such as single drug and medicine are decomposed in storage process, cause prevent and treat narrow limits or control efficiency undesirable, disease can not be effectively controlled, and peasant is in order to effective sterilization, needs frequent dispenser, constantly change pharmacy variety, dosage and times for spraying all obviously increase, and have increased the weight of planting cost and the environmental pollution of peasant.
The English common name Cyazofamid of cyazofamid, the chloro-2-cyano group of chemical name 4--5-p-methylphenyl-imidazoles-1-N, N-dimethyl sulfonamide, by a kind of mitochondrial respiratory inhibitor of Japanese Ishihara Sangyo Kaisha, Ltd. Development and Production, acts on the Qi site in cytochrome b cl.Cyazofamid has good prolection, and the lasting period is long, and resistance of rainwater washing against, there is certain interior suction and therapeutic activity, all have activity to all vegetative stages of oomycetes.As CN102626098A discloses a kind of bactericidal composition of pyraclostrobin-containing, comprise pyraclostrobin, cyazofamid, and both weight ratios are 1:0.1-15; The advantages such as it is good that this bactericidal composition has bactericidal effect, and drug cost is low.
When this bactericidal composition occurs for disease, single drug does not cause preventive effect good or easily produce resistance, and medicament in accumulating active ingredient due to illumination, temperature raise cause decompose more, cause and often will improve times for spraying on actual dosage, thus increase composition, aggravation environmental pollution.
Summary of the invention
In order to solve the problem, the invention provides one and having treatment and prevention double effects concurrently, the bactericidal composition containing cyazofamid that easy storage, bactericidal effect are good.
In order to realize object of the present invention, the present invention adopts following technical scheme.
Containing a bactericidal composition for cyazofamid, also comprise anti-factoring and component C; Wherein, the mass ratio of component A cyazofamid and anti-factoring, component C is (3-50): (1-5): (3-60); The mass ratio of preferred ingredient A cyazofamid and anti-factoring, component C is (3-30): (2-4): (3-60); More preferably the mass ratio of component A cyazofamid and anti-factoring, component C is (20-30): 3:(25-50).
In above-mentioned bactericidal composition, described cyazofamid and component C quality sum account for the 5-90% of bactericidal composition gross mass, preferred 5-80%, more preferably 30-80.
Wherein, described anti-factoring be in citric acid, 2,6-di-tert-butyl-4-methy phenols, butylated hydroxy anisole, two ten four carbon alcohols esters or antioxidant DNP one or more.
Described component C is a kind of in pyraclostrobin, fluazinam, dimethomorph, white urea cyanogen, benzene metsulfovax, zoxamide Huo famoxadone; One in preferred pyraclostrobin, fluazinam, white urea cyanogen, dimethomorph.
In bactericidal composition of the present invention, except component A cyazofamid, anti-factoring, component C, wetting dispersing agent, thickener, carrier, antifreeze, filler, emulsifier, cosolvent etc. can also be added, be mixed with aqueous emulsion, aqueous suspension agent, suspension emulsion, water dispersant, suspending agent, wetting powder, microemulsion, oil-suspending agent, ultra low volume spraying agent, microcapsule suspending agent, film-spreading oil solution, fumicants, dispersible agent and thermal fog further.
For water dispersant of the present invention, except principle active component, alternative adds dispersant, wetting agent and filler; Wherein said dispersant is selected from polycarboxylate, lignosulfonates, sodium alkyl benzene sulfonate or fatty alcohol-polyoxyethylene ether; Wetting agent is selected from lauryl sodium sulfate or Nekal BX; Filler is selected from the one in diatomite, kaolin, white carbon, precipitated calcium carbonate, talcum powder.
Water dispersant of the present invention by weight, contains: cyazofamid 25-35 part, anti-factoring 2-4 part, component C40-60 part, and dispersant 0.5-2 part, wetting agent 0.1-1 part, filler complements to 100 parts.
For wetting powder of the present invention, except principle active component, alternative adds dispersant, wetting agent and filler.Wherein dispersant is selected from polycarboxylate, lignosulfonates or naphthalene sulfonate; Wetting agent be selected from lauryl sodium sulfate, alkylsulfonate or naphthalene sulfonate one or more; Filler be selected from ammonium sulfate, urea, kaolin, white carbon or precipitated calcium carbonate one or more.
Wetting powder of the present invention by weight, contains: cyazofamid 3-8 part, anti-factoring 2-4 part, component C20-30 part, and wetting agent 1-3 part, dispersant 5-10 part, filler complements to 100 parts.
For suspending agent of the present invention, except principle active component, alternative adds Ricinate, thickener, antifreezing agent and carrier.Wherein wetting dispersing agent is selected from one or more in methyl naphthalene sulfonate formaldehyde condensate, polyoxyethylene groups alkyl aryl ether, alkylbenzenesulfonate, alkylnaphthalene sulfonate; Thickener be selected from xanthans, aluminium-magnesium silicate, polyvinyl alcohol, bentonite, white carbon or starch one or more; Antifreezing agent to be selected from ethylene glycol, glycerine, glycerine, urea or sodium chloride one or more; Carrier is selected from bentonite.
Suspending agent of the present invention by weight, contains: cyazofamid 15-30 part, anti-factoring 2-4 part, component C3-5 part, wetting dispersing agent 8-15 part, thickener 0.5-2 part, and antifreeze 0.5-2 part, bentonite 0.5-2 part, water complements to 100 parts.
Microemulsion of the present invention, except principle active component, alternative adds solvent, cosolvent, emulsifier.Wherein, solvent is selected from 1-METHYLPYRROLIDONE; Cosolvent is selected from isopropyl alcohol; Emulsifier is selected from agriculture breast 500# or/and agriculture breast 1601#.
Microemulsion of the present invention by weight, contains: cyazofamid 3-6 part, anti-factoring 2-4 part, component C 5-15 part, and solvent 8-15 part, emulsifier 5-15 part, water complements to 100 parts.
The present invention measures screening by large number of biological, surprisingly find that cyazofamid (component A) is composite with certain proportion with a kind of (component C) in pyraclostrobin, fluazinam, dimethomorph, white urea cyanogen, benzene metsulfovax, zoxamide Huo famoxadone with anti-factoring (B component), plant Oomycete disease control is had significant synergies, because the mechanism of action of wherein active ingredient is different, be conducive to avoiding poisoning to produce resistance, and delay the generation speed of disease drug resistance.Use bactericidal composition of the present invention to play prevent and expand fungicidal spectrum simultaneously, greatly reduce usage amount and the use cost of agricultural chemicals, safer to crops, reduce environmental pollution.
Embodiment
Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Embodiment 1
24% cyazofamid pyraclostrobin suspending agent formula is as follows:
The ratio of each components such as active component, anti-factoring, wetting dispersing agent, thickener, carrier and water in formula is mixed, after grinding and/or high speed shear, obtains 24% cyazofamid pyraclostrobin suspending agent.For downy mildew of garpe field trial.
Test method: by 24% cyazofamid pyraclostrobin suspending agent by 2500 times of thin up sprayings.Two contrast medicament same methods use, and diluted concentration is respectively 15% cyazofamid suspending agent 2000 times and 250 grams per liter pyraclostrobin missible oil 2000 times.7 days and 15 days difference investigation prevention effects after medicine.
Result of the test: after 24% cyazofamid pyraclostrobin suspending agent medicine, the preventive effect of 7 days and 15 days is respectively 89.6%, 88.2%.After contrast medicament 15% cyazofamid suspending agent and 250 grams per liter pyraclostrobin missible oil medicines, the preventive effect of 7 days and 15 days is respectively 84.9%, 83.2% and 81.4%, 80.6%.Cyazofamid and the composite rear synergistic effect of pyraclostrobin are obvious, to the preventive effect of downy mildew of garpe significantly better than single dose.
Embodiment 2
30% cyazofamid fluazinam suspending agent
The ratio of each components such as active component, anti-factoring, wetting dispersing agent, thickener, carrier and water in formula is mixed, after grinding and/or high speed shear, obtains 30% cyazofamid fluazinam suspending agent.For downy mildew of garpe field trial.
Test method: by 30% cyazofamid fluazinam suspending agent by 15 grams/acre of thin up sprayings, two contrast medicament same methods use, diluted concentration is respectively 15% cyazofamid suspending agent 2000 times and 500 grams per liter fluazinam suspending agents 30 milliliters/mu, 7 days and 15 days investigation prevention effects after medicine.
Result of the test: after 30% cyazofamid fluazinam suspending agent medicine, the preventive effect of 7 days and 15 days is respectively 87.2%, 86.2%, after contrast medicament 15% cyazofamid suspending agent and 500 grams per liter fluazinam suspending agent medicines, the preventive effect of 7 days and 15 days is respectively 82.1%, 80.3% and 72.3%, 71.7%.Cyazofamid and the composite rear synergistic effect of fluazinam are obvious, to the preventive effect of downy mildew of garpe significantly better than single dose.
Embodiment 3
60% cyazofamid frost urea cyanogen water dispersible granules
Active component, anti-factoring, wetting agent and the filler ratio in formula is mixed, becomes wetting powder through air-flow crushing, then add a certain amount of water mixing extruding and make material.60% cyazofamid frost urea cyanogen water dispersible granules is obtained after drying screening.For tomato late blight field trial.
Test method: by the 5000 times of thin up sprayings of 60% cyazofamid frost urea cyanogen water dispersible granules, contrast medicament, use with same method, diluted concentration is respectively 20% cyazofamid water dispersible granules 2000 times, 20% white urea cyanogen water dispersible granules 1000 times.7 days and 15 days difference investigation prevention effects after medicine.
Result of the test: after 60% cyazofamid frost urea cyanogen water dispersible granules medicine, the control efficiency of 7 days and 15 days is respectively 97.9%, 97.5%.After contrast medicament medicine, the preventive effect of 7 days and 15 days is respectively 85.7%, 85.5% and 85.4%, 74.8%.Cyazofamid and the composite rear synergistic effect of white urea cyanogen are obvious, to the preventive effect of tomato late blight significantly better than single dose.
Embodiment 4
50% cyazofamid dimethomorph suspending agent
The ratio of each components such as active component, anti-factoring, wetting dispersing agent, thickener, carrier and water in formula is mixed, after grinding and/or high speed shear, obtains 50% cyazofamid dimethomorph suspending agent.For potato late blight field trial.
Test method: by 50% cyazofamid dimethomorph suspending agent by 1000 times of thin up sprayings, contrast medicament same method uses, and diluted concentration is respectively 8% cyazofamid suspending agent 1000 times and 40% dimethomorph suspending agent 500 times.7 days and 15 days difference investigation prevention effects after medicine.
Result of the test: after 50% cyazofamid dimethomorph suspending agent medicine, the control efficiency of 7 days and 15 days is respectively 91.5%, 89.7%.After contrast medicament medicine, the preventive effect of 7 days and 15 days is respectively 80.9%, 80.5% and 86.1%, 83.3%.Cyazofamid and the composite rear synergistic effect of dimethomorph are obvious, to the preventive effect of potato late blight significantly better than single dose.
Test example 1
Biologicall test: with cyazofamid, anti-factoring for fixing additive, respectively with pyraclostrobin, fluazinam, the composite toxicity test to downy mildew of garpe of dimethomorph.
Subjects: downy mildew of garpe germ.
This experiment adopts pot-culture method, at greenhouse pot culture grape seedling to the 2-3 leaf phase, foliar spray process is carried out by designer drug agent dose, Plasmopara viticola is inoculated after 24 hours, and moisturizing is cultivated in incubator, the investigation result when the blank of not dispenser is fully fallen ill, calculates control efficiency with disease index, carry out statistical analysis with DPS data processing software, calculate the EC of each medicament
50, adopt Sun Yun abundant method to calculate co-toxicity coefficient (CTC) and evaluate mixed effect, when CTC is greater than 120, mixture has synergistic effect, is antagonisms, between 80-120, has summation action when being less than 80.
The EC of toxicity index TI (B)=standard agent A
50the EC of/B agent
50× 100
The EC of actual measurement toxicity index ATI (AB)=A
50the EC of/AB
50× 100
Theoretical toxicity index TTI (AB)=TI(A) percentage composition+TI(B of × A in mixture) percentage composition of × B in mixture
Co-toxicity coefficient (CTC)=ATI (AB)/TTI (AB) × 100
Toxicity test result is see table 1-table 3.
Table 1 cyazofamid and the composite Toxicity Determination result to downy mildew of garpe of pyraclostrobin
Result of the test shows, cyazofamid and pyraclostrobin is composite prevents and treats downy mildew of garpe, when proportioning is between (50: 1)-(1: 50), co-toxicity coefficient is all more than 131.1, there is synergistic effect, and time between (10:1)-(1: 20), co-toxicity coefficient is all higher than 170.1, synergistic effect is more obvious.
Table 2 cyazofamid and the composite Toxicity Determination result to downy mildew of garpe of fluazinam
Result of the test shows, cyazofamid and fluazinam is composite prevents and treats downy mildew of garpe, when proportioning is between (50: 1)-(1: 50), co-toxicity coefficient, all more than 144.9, has synergistic effect, and time between (10: 1)-(1: 20), co-toxicity coefficient is all higher than 197.9, and synergistic effect is more obvious.
Table 3 cyazofamid and the composite Toxicity Determination result to downy mildew of garpe of dimethomorph
Result of the test shows, cyazofamid and dimethomorph is composite prevents and treats downy mildew of garpe, when proportioning is between (50: 1)-(1: 50), co-toxicity coefficient is all more than 144.9, there is synergistic effect, and time between (10: 1)-(1: 20), co-toxicity coefficient is all higher than 179.1, synergistic effect is more obvious.
Test example 2
Biologicall test: with cyazofamid, anti-factoring for fixing additive, respectively with white urea cyanogen, benzene metsulfovax, the composite toxicity test to tomato late blight of zoxamide Huo famoxadone.Subjects: tomato late blight germ.
Test adopts pot-culture method.Tomato is potted plant is cultured to 2-4 sheet leaf period, numbers for subsequent use.Test is cultivated with pathogen on suitable medium, after sporangium to be generated, with sterile water, sporangium is washed down, filter with double gauze, make 1 × 105 sporangium/mL sporangia suspension.According to agent activity, according to agent activity, 5-7 series mass concentration is set.Liquid is evenly sprayed in blade face to all wetting, treat that liquid natural air drying is for subsequent use.Often process 3 basins, repeat for 4 times, and establish the process only containing solvent and surfactant not containing active ingredient to make blank.After chemicals treatment 24h, on tomato leaf, evenly spray inoculation with crops sprayer.After inoculation, at temperature 18-20 DEG C, cultivate 7 days under the condition of relative moisture more than 90%.Add up the lesion area on every strain tomato leaf, and calculate disease index and control efficiency.Toxicity test result is see table 4-table 7.
Table 4 cyazofamid and the composite Toxicity Determination result to tomato late blight of white urea cyanogen
Result of the test shows, cyazofamid and the composite control tomato late blight of white urea cyanogen, when proportioning is between (50: 1)-(1: 50), co-toxicity coefficient, all more than 142.9, has synergistic effect, and time between (10: 1)-(1: 20), co-toxicity coefficient is all higher than 189.4, and synergistic effect is more obvious.
Table 5 cyazofamid and the composite Toxicity Determination result to tomato late blight of benzene metsulfovax
Result of the test shows, cyazofamid and the composite control tomato late blight of benzene metsulfovax, when proportioning is between (50: 1)-(1: 50), co-toxicity coefficient is all more than 153.1, there is synergistic effect, and time between (10: 1)-(1: 20), co-toxicity coefficient is all higher than 206.4, synergistic effect is more obvious.
Table 6 cyazofamid and the composite Toxicity Determination result to tomato late blight of zoxamide
Result of the test shows, cyazofamid and the composite control tomato late blight of zoxamide, when proportioning is between (50: 1)-(1: 50), co-toxicity coefficient is all more than 133.7, there is synergistic effect, and time between (10: 1)-(1: 20), co-toxicity coefficient is all higher than 192.5, synergistic effect is more obvious.
Table 7 cyazofamid is Yu the composite Toxicity Determination result to tomato late blight of famoxadone
Result of the test shows, cyazofamid is Yu the composite control tomato late blight of famoxadone, when proportioning is between (50: 1)-(1: 50), co-toxicity coefficient is all more than 138.2, there is synergistic effect, and time between (10: 1)-(1: 20), co-toxicity coefficient is all higher than 200.4, synergistic effect is more obvious.
Bactericidal composition of the present invention can be prepared into the aqueous emulsion of applicable agricultural use, aqueous suspension agent, suspension emulsion, water dispersible granules, dry suspending agent, wetting powder, microemulsion, oil-suspending agent, ultra low volume spraying agent, microcapsule suspending agent, film-spreading oil solution, fumicants, dispersible agent or thermal fog by known method.Be described with specific embodiment below, in formula, percentage is mass percent.In active component present specification middle finger cyazofamid (A), anti-factoring (B) and pyraclostrobin, fluazinam, dimethomorph, white urea cyanogen, benzene metsulfovax, zoxamide Huo famoxadone, (C) is a kind of, below repeats no more.
Although above with general explanation, embodiment and test, the present invention is described in detail, and on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.
Claims (1)
1., containing a bactericidal composition for cyazofamid, it is characterized in that, be made up of the component of following mass percent:
Described anti-factoring be in citric acid, 2,6-di-tert-butyl-4-methy phenols, butylated hydroxy anisole, two ten four carbon alcohols esters or antioxidant DNP one or more.
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Families Citing this family (5)
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| CN103858911A (en) * | 2014-03-14 | 2014-06-18 | 曹荣成 | Compounded fungicidal composition containing cyazofamid and cymoxanil |
| CN104351207A (en) * | 2014-11-07 | 2015-02-18 | 江苏丰登作物保护股份有限公司 | Cyazofamid and famoxadone containing bactericidal composition and application thereof |
| CN106942211A (en) * | 2017-04-12 | 2017-07-14 | 江苏金凤凰农化有限公司 | A kind of composition and application process that downy mildew of garpe is treated based on guaiacol |
| CN107006487A (en) * | 2017-05-30 | 2017-08-04 | 兴农药业（中国）有限公司 | The composition pesticide of Yi Zhong famoxadones and cyazofamid |
| CN114642210B (en) * | 2021-04-06 | 2024-05-28 | 山东统防生物科技有限公司 | Suspending agent containing methoxy carbamate and cyazofamid and application thereof |
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