CN103621562B - A kind of bactericidal composition - Google Patents
A kind of bactericidal composition Download PDFInfo
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- CN103621562B CN103621562B CN201210302555.2A CN201210302555A CN103621562B CN 103621562 B CN103621562 B CN 103621562B CN 201210302555 A CN201210302555 A CN 201210302555A CN 103621562 B CN103621562 B CN 103621562B
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Abstract
The invention discloses a kind of bactericidal composition, bactericidal composition containing active components A and active component B, wherein active components A is selected from Fenarimol, active component B is selected from any one compound following: the phonetic phenol of polyoxin, second or its salt, tridemorph, antibiotic in pyrimidine nucleoside class, and the weight ratio of active components A and active component B is 1 ︰ 80 ~ 60 ︰ 1.The multiple diseases of the present composition to harm agricultural production has synergistic effect, and decrease pesticide usage amount, reduce the residual quantity of agricultural chemicals on crop, alleviate environmental pollution, to person poultry safety, Environmental compatibility is good, and disease not easily develops immunity to drugs.
Description
Technical field
The invention belongs to technical field of pesticide, relate to the application of a kind of bactericidal composition on corps diseases.
Background technology
The chloro-α of Fenarimol (fenarimol) chemical name: 2,4'-bis--(pyrimidine radicals-5) benzohydrol, molecular formula: C
17h
12cl
2n
2o, for the broad-spectrum germicide with prevention, therapeutic action of foliage spray.By disturbing the formation of pathogen sterol and ergosterol, thus affect normal development.This medicine can not suppress the sprouting of pathogen spore, but can suppress growth, the growth of pathogen mycelia, causes and can not infect plant tissue.
The phonetic phenol of polyoxin, second or its salt, tridemorph, antibiotic in pyrimidine nucleoside class all belong to conventional bactericide, and be widely used in the disease of crops, wherein the salt of the phonetic phenol of second is bupirimate, and antibiotic in pyrimidine nucleoside class is also called pesticide corrosion 120.
But in the real process of agricultural production, the problem that controlling disease the most easily produces is the generation of disease drug resistance.Different cultivars composition carries out composite, is to prevent and treat the very common method of resistance disease.Heterogeneity is carried out composite, according to practical application effect, judge certain composite be synergy, add and or antagonism.In most cases, the composite effect of sterilization is all additive effect, really has the seldom composite of synergistic effect, especially synergistic effect clearly, very high composite just less of synergy ratio.Study through inventor, find Fenarimol and polyoxin, the phonetic phenol of second or its salt, tridemorph, antibiotic in pyrimidine nucleoside class is composite after can produce good synergistic effect, and not yet open about the relevant report that Fenarimol and polyoxin, the phonetic phenol of second or its salt, tridemorph, antibiotic in pyrimidine nucleoside class are composite.
Summary of the invention
The object of the invention is to propose a kind of to there is synergistic function, use cost is low, preventive effect is good bactericidal composition.
The bactericidal composition that the present invention proposes contains active components A and active component B, active components A and active component B weight ratio are 1 ︰ 80 ~ 60 ︰ 1, described active components A is selected from Fenarimol, active component B is selected from the one in polyoxin, the phonetic phenol of second or its salt, tridemorph, pesticide corrosion 120, and active components A and the preferred weight ratio of active component B are 1 ︰ 60 ~ 40 ︰ 1; The weight ratio being more preferably Fenarimol and polyoxin is 1 ︰ 25 ~ 15 ︰ 1, the weight ratio of Fenarimol and the phonetic phenol of second or its salt is 1 ︰ 30 ~ 10 ︰ 1, the weight ratio of Fenarimol and tridemorph is 1 ︰ 30 ~ 10 ︰ 1, and the weight ratio of Fenarimol and antibiotic in pyrimidine nucleoside class is 1 ︰ 30 ~ 15 ︰ 1; The weight ratio most preferably being Fenarimol and polyoxin is 1 ︰ 10 ~ 1 ︰ 1, the weight ratio of Fenarimol and the phonetic phenol of second or its salt is 1 ︰ 15 ~ 1 ︰ 1, the weight ratio of Fenarimol and tridemorph is 1 ︰ 15 ~ 1 ︰ 4, and the weight ratio of Fenarimol and antibiotic in pyrimidine nucleoside class is 1 ︰ 10 ~ 5 ︰ 1.
The bactericidal composition that the present invention proposes is for preventing and treating the purposes of disease on crops, and described crops comprise cereal crops, legume crop, fiber crop, sugar [yielding, melon crop, fruits crop, dry fruit crop, hobby crop, root crop, oil crop, flower crop, medicinal crop, crop, green manure pasture crop; Described disease comprises powdery mildew, scab, epidemic disease, leaf mold, gray mold, downy mildew, spot defoliation, fusarium wilt, rust, graywall, brown spot, damping off, ring spot, banded sclerotial blight, leaf spot, anthracnose, rust.
The weight ratio of active components A, active component B is 1 ︰ 80 ~ 60 ︰ 1.In usual composition, the weight percentage of active component is 0.5% ~ 90% of gross weight, is preferably 5% ~ 80%.According to different preparation types, active component content scope is different.Usually, liquid preparation contains the active substance of by weight 1% ~ 70%, is preferably 5% ~ 50%; Solid pharmaceutical preparation contains the active substance of by weight 5% ~ 80%, is preferably 10% ~ 80%.
At least containing a kind of surfactant in bactericidal composition of the present invention, the dispersion of active component in water when being beneficial to use.Surface-active contents is 5% ~ 30% of total formulation weight amount, and surplus is solid or liquid diluent.
Bactericidal composition of the present invention can by user before use through diluting or directly using.Its preparation can be prepared by common processing method known in those skilled in the art, after mixing with liquid flux or solid carrier by active substance, then add surfactant as one or more in dispersant, stabilizing agent, wetting agent, binding agent, defoamer, disintegrant, antifreeze etc.
Bactericidal composition of the present invention, can be processed into acceptable formulation in any sterilization on demand, wherein more preferably formulation is wetting powder, water dispersible granules, suspending agent, suspension emulsion, aqueous emulsion, microemulsion, microcapsule suspending agent, microcapsule suspension-suspendinagent agent.
Composition comprises following constituent content when making wetting powder: active components A 0.1% ~ 60%, active component B0.1% ~ 80%, dispersant 2% ~ 10%, wetting agent 2% ~ 10%, filler surplus.
Composition comprises following constituent content when making water dispersible granules: active components A 0.1% ~ 60%, active component B0.1% ~ 80%, dispersant 3% ~ 12%, wetting agent 1% ~ 8%, disintegrant 1% ~ 10%, binding agent 0 ~ 8%, filler surplus.
Composition comprises following constituent content when making suspending agent: active components A 0.1% ~ 50%, active component B0.1% ~ 50%, dispersant 2% ~ 10%, wetting agent 2% ~ 10%, defoamer 0.01% ~ 2%, thickener 0 ~ 2%, antifreeze 0 ~ 8%, deionized water add to 100%.
Composition comprises following constituent content when making suspension emulsion: active components A 0.1% ~ 50%, active component B0.1% ~ 50%, dispersant 2% ~ 10%, defoamer 0.01% ~ 2%, solvent 0 ~ 15%, thickener 0 ~ 2%, emulsifier 2% ~ 12%, antifreeze 0 ~ 8%, deionized water add to 100%.
Composition comprises following constituent content when making aqueous emulsion: active components A 0.1% ~ 50%, active component B0.1% ~ 50%, solvent 1% ~ 30%, emulsifier 1% ~ 15%, antifreeze 0 ~ 8%, thickener 0 ~ 2%, defoamer 0.01% ~ 2%, deionized water supply surplus.
Composition comprises following constituent content when making microemulsion: active components A 0.1% ~ 50%, active component B0.1% ~ 50%, solvent 1% ~ 30%, emulsifier 3% ~ 25%, antifreeze 0 ~ 8%, defoamer 0.01% ~ 2%, deionized water supply surplus.
Composition comprises following constituent content when making microcapsule suspending agent: active components A 0.1% ~ 50%, active component B0.1% ~ 50%, macromolecule cyst material 2% ~ 10%, dispersant 1% ~ 10%, organic solvent 1% ~ 10%, emulsifier 1% ~ 7%, defoamer 0.01% ~ 2%, pH adjusting agent 0.01% ~ 5%, deionized water add to 100%.
Composition comprises following constituent content when making microcapsule suspension-suspendinagent agent: active components A 0.1% ~ 50%, active component B0.1% ~ 50%, macromolecule cyst material 2% ~ 10%, dispersant 1% ~ 12%, wetting agent 1% ~ 8%, organic solvent 1% ~ 15%, emulsifier 1% ~ 6%, defoamer 0.01% ~ 2%, thickener 0 ~ 2%, pH adjusting agent 0.01% ~ 5%, deionized water add to 100%;
Wetting powder the key technical indexes of the present invention:
Water dispersible granules the key technical indexes of the present invention:
Suspending agent the key technical indexes of the present invention:
Suspension emulsion the key technical indexes of the present invention:
Aqueous emulsion the key technical indexes of the present invention:
Microemulsion the key technical indexes of the present invention:
Microcapsule suspending agent the key technical indexes of the present invention:
Microcapsule suspension-suspendinagent agent the key technical indexes of the present invention:
The invention has the advantages that:
(1) Fenarimol and polyoxin, the phonetic phenol of second or its salt, tridemorph, pesticide corrosion 120 composite after, there is obvious synergy and lasting effect; (2) all greater activity is had to the disease on cereal crops, legume crop, fiber crop, sugar [yielding, melon crop, fruits crop, dry fruit crop, hobby crop, root crop, oil crop, flower crop, medicinal crop, crop, green manure pasture crop; (3) decrease pesticide usage amount, reduce the residual quantity of agricultural chemicals on crop, alleviate environmental pollution; (4) to person poultry safety, Environmental compatibility is good; And preparation adhesion strength strengthens, resistance of rainwater washing against.
Embodiment
Below in conjunction with embodiment to further instruction of the present invention, the percentage in embodiment is all weight percentage, but the present invention is not limited thereto.
Application Example one
Embodiment 1 ~ 10 wetting powder
Fenarimol, active component B, dispersant, wetting agent, filler are mixed in mixed cylinder, mixes again after airslide disintegrating mill is pulverized, wetting powder product of the present invention can be obtained, specifically in table 1.
The each component of table 1 embodiment 1 ~ 10 and weight portion
Embodiment 11 ~ 20 water dispersible granules
Fenarimol, active component B, dispersant, wetting agent, disintegrant, filler etc. are obtained together the particle diameter needed through air-flow crushing, then add other auxiliary agents such as binding agent (can add and can not add), obtain granulation materials.Item is quantitatively sent in fluidized bed granulating dryer through granulating and after drying, water dispersible granules product of the present invention can being obtained, specifically in table 2.
The each component of table 2 embodiment 11 ~ 20 and weight portion
Embodiment 21 ~ 30 suspending agent
By dispersant, wetting agent, defoamer, thickener (can add and can not add), antifreeze (can add and can not add), mix through high speed shear, add Fenarimol, active component B, ball milling 2 ~ 3 hours in ball mill, make diameter of particle all below 5 μm, surplus deionized water is supplied, and can obtain suspending agent product of the present invention, specifically in table 3.
The each component of table 3 embodiment 21 ~ 30 and weight portion
Polyoxin, the phonetic phenol of second or its salt, tridemorph, pesticide corrosion 120 in table 1 ~ 3 are exchanged, can novel formulation be obtained.
Embodiment 31 ~ 38 suspension emulsion
Dispersant, defoamer, thickener (can add and can not add), antifreeze (can add and can not add) are mixed through high speed shear, add Fenarimol, ball milling 2 ~ 3 hours in ball mill, make diameter of particle all below 5 μm, obtained Fenarimol suspending agent, then by phonetic for second phenol or its salt or tridemorph, solvent (can add and can not add), emulsifier and the direct emulsification of various auxiliary agent high speed agitators in suspending agent, surplus deionized water is supplied, obtained suspension emulsion product of the present invention, specifically in table 4,5.
The each component of table 4 embodiment 31 ~ 34 and weight portion
The each component of table 5 embodiment 35 ~ 38 and weight portion
In showing, the phonetic phenol of second or its salt, tridemorph exchange, and can obtain novel formulation.
Embodiment 39 ~ 48 aqueous emulsion
Fenarimol, active component B, solvent, emulsifier are added together, make to be dissolved into homogeneous oil phase; Deionized water, antifreeze (can add and can not add), thickener (can add and can not add), defoamer are mixed, becomes homogeneous aqueous phase.Under high velocity agitation, aqueous phase is added oil phase, surplus deionized water is supplied; Aqueous emulsion product of the present invention can be obtained, specifically in table 6.
The each component of table 6 embodiment 39 ~ 48 and weight portion
Polyoxin, the phonetic phenol of second or its salt, tridemorph, pesticide corrosion 120 in table 6 are exchanged, can novel formulation be obtained.
Embodiment 49 ~ 51 microemulsion
Fenarimol, active component B, solvent, emulsifier, antifreeze (can add and can not add), defoamer are fully mixed into the oil phase of homogeneous transparent, under agitation slowly add deionized water, form WO emulsion, again through agitating heating, make it rapid phase inversion and become oil-in-water type, be chilled to room temperature to make it to reach balance, after filtration, surplus deionized water is supplied; Microemulsion product of the present invention can be obtained, specifically in table 7.
The each component of table 7 embodiment 49 ~ 51 and weight portion
Embodiment 52,53 microcapsule suspending agent
By Fenarimol, active component B, macromolecule cyst material, solvent, make to be dissolved into homogeneous oil phase, in a shear condition, oil phase is joined in the aqueous phase solution containing emulsifier, pH adjusting agent, dispersant, surplus deionized water is supplied, bi-material reacts at oil-water interfaces, forms macromolecule cyst wall, makes the finely disseminated microcapsule suspending agent product of the present composition.Specifically in table 8.
Table 8 embodiment 52,53 each component and weight portion
Embodiment 54,55 microcapsule suspension-suspendinagent agent
By phonetic for second phenol or its salt or tridemorph, macromolecule cyst material, solvent, make to be dissolved into homogeneous oil phase, oil phase is joined in a shear condition in the aqueous phase solution containing emulsifier, pH adjusting agent, make finely disseminated microcapsule suspending agent.Dispersant, wetting agent, defoamer, thickener (can add and can not add) are mixed through high speed shear, add Fenarimol, ball milling 2 ~ 3 hours in ball mill, make diameter of particle all below 5 μm, obtained suspending agent, then join in the aqueous phase solution of micro-capsule suspension by suspending agent, deionized water supplies surplus, make the finely disseminated microcapsule suspension-suspendinagent agent product of the present composition, specifically in table 9.
Table 9 embodiment 54,55 each component and weight portion
The embodiment of the present invention is the method adopting Toxicity Determination and field trial to combine.First pass through Toxicity Determination, synergy ratio (SR) after clear and definite two kinds of medicaments are composite by a certain percentage, SR < 0.5 is antagonism, 0.5≤SR≤1.5 are summation action, SR > 1.5 is synergistic effect, on this basis, then carry out field trial.
Test method: determine that after the effective inhibition concentration scope of each medicament, medicament establishes 5 dosage process respectively by active constituent content through prerun, if clear water contrast.Carry out with reference to " farm-chemical indoor determination test rule bactericide ", adopt mycelial growth rate method to measure medicament to the virulence of crop germ.Measure colony diameter by right-angled intersection method after 72h, calculate each process net growth, mycelial growth inhibition rate.
Net growth (mm)=measurement colony diameter-5
Mycelial growth inhibition rate is converted into probit value (y), liquor strength (μ g/mL) converts logarithm value (x) to, try to achieve virulence regression equation (y=a+bx) with method of least squares, and calculate the EC of often kind of medicament thus
50value.Calculate two medicament different ratio synergies ratio (SR) according to Wadley method, SR < 0.5 is antagonism, and 0.5≤SR≤1.5 are summation action simultaneously, and SR > 1.5 is synergistic effect.Computing formula is as follows:
Wherein: a, b are respectively active components A and the ratio of active component B shared by combination;
A is Fenarimol;
B choosing is to the one in polyoxin, the phonetic phenol of second or its salt, tridemorph, pesticide corrosion 120.
Application Example two:
For examination disease: apple peels and cores
Test medicine provides by Shaanxi Meibang Pesticide Co., Ltd..
Experimental scheme: through effective inhibition concentration scope of preliminary experiment determination Fenarimol and the former medicine of polyoxin and the two different ratio mixture.
Toxicity test result
Table 10 Fenarimol and the composite toxicity test analysis of results table to apple peels and cores of polyoxin
As shown in Table 10, Fenarimol and polyoxin proportioning are all greater than 1.5 when 1 ︰ 80 ~ 60 ︰ 1 to the synergy ratio SR of apple peels and cores, both explanations mixture in 1 ︰ 80 ~ 60 ︰ 1 scope all shows synergistic effect, when the proportioning of Fenarimol and polyoxin is at 1 ︰ 25 ~ 15 ︰ 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.20.Testing through applicant the optimum ratio finding Fenarimol and polyoxin is 15:1,5:1,1:1,1:2,1:3,1:4,1:5,1:6,1:7,1:8,1:9,1:10,1:12,1:15,1:20,1:25, especially when Fenarimol and polyoxin weight ratio are 1:5, synergy ratio is maximum, and synergistic effect is the most obvious.
Application Example three
For examination disease: powdery mildew of cucumber
Test medicine provides by Shaanxi Meibang Pesticide Co., Ltd..
Experimental scheme: through effective inhibition concentration scope of preliminary experiment determination Fenarimol and the phonetic phenol of second or the former medicine of its salt and the two different ratio mixture.
Table 11 Fenarimol and the phonetic phenol of second or the composite toxicity test analysis of results table to powdery mildew of cucumber of its salt
As shown in Table 11, Fenarimol and the phonetic phenol of second or its salt proportioning are all greater than 1.5 when 1 ︰ 80 ~ 60 ︰ 1 to the synergy ratio SR of powdery mildew of cucumber, both explanations mixture in 1 ︰ 80 ~ 60 ︰ 1 scope all shows synergistic effect, when the proportioning of Fenarimol and the phonetic phenol of second or its salt is at 1 ︰ 30 ~ 10 ︰ 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.20.Testing through applicant the optimum ratio finding Fenarimol and the phonetic phenol of second or its salt is 10:1,5:1,1:1,1:3,1:5,1:6,1:7,1:8,1:9,1:10,1:11,1:12,1:13,1:14,1:15,1:16,1:20,1:25,1:30, especially when Fenarimol and the phonetic phenol of second or its salt weight ratio are 1:7, synergy ratio is maximum, and synergistic effect is the most obvious.
Application Example four
For examination disease: sigatoka
Test medicine provides by Shaanxi Meibang Pesticide Co., Ltd..
Experimental scheme: through effective inhibition concentration scope of preliminary experiment determination Fenarimol and the former medicine of tridemorph and the two different ratio mixture.
Table 12 Fenarimol and the composite toxicity test analysis of results table to sigatoka of tridemorph
As shown in Table 12, Fenarimol and tridemorph proportioning are all greater than 1.5 when 1 ︰ 80 ~ 60 ︰ 1 to the synergy ratio SR of sigatoka, both explanations mixture in 1 ︰ 80 ~ 60 ︰ 1 scope all shows synergistic effect, when the proportioning of Fenarimol and tridemorph is at 1 ︰ 30 ~ 10 ︰ 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.25.Testing through applicant the optimum ratio finding Fenarimol and tridemorph is 10:1,5:1,1:1,1:3,1:5,1:6,1:7,1:8,1:9,1:10,1:11,1:12,1:13,1:14,1:15,1:16,1:20,1:25,1:30, especially when Fenarimol and tridemorph weight ratio are 1:9, synergy ratio is maximum, and synergistic effect is the most obvious.
Application Example five
For examination disease: grape powdery mildew
Test medicine provides by Shaanxi Meibang Pesticide Co., Ltd..
Experimental scheme: through effective inhibition concentration scope of preliminary experiment determination Fenarimol and the former medicine of pesticide corrosion 120 and the two different ratio mixture.
Table 13 Fenarimol and the composite toxicity test analysis of results table to grape powdery mildew of pesticide corrosion 120
As shown in Table 13, Fenarimol and pesticide corrosion 120 proportioning are all greater than 1.5 when 1 ︰ 80 ~ 60 ︰ 1 to the synergy ratio SR of grape powdery mildew, both explanations mixture in 1 ︰ 80 ~ 60 ︰ 1 scope all shows synergistic effect, when the proportioning of Fenarimol and pesticide corrosion 120 is at 1 ︰ 30 ~ 15 ︰ 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.20.Testing through applicant the optimum ratio finding Fenarimol and pesticide corrosion 120 is 15:1,10:1,8:1,6:1,5:1,4:1,3:1,2:1,1:1,1:2,1:3,1:4,1:5,1:8,1:10,1:15,1:20,1:25,1:30, especially when Fenarimol and pesticide corrosion 120 weight ratio are 1:2, synergy ratio is maximum, and synergistic effect is the most obvious.
Through test find: Fenarimol and active component B composite after have obvious synergistic effect to the control of the powdery mildew in various crop, scab, epidemic disease, leaf mold, gray mold, downy mildew, spot defoliation, fusarium wilt, rust, graywall, brown spot, damping off, ring spot, banded sclerotial blight, leaf spot, anthracnose, rust, synergy ratio SR is all greater than 1.5.
Effect experiment part: test medicine is researched and developed by Shaanxi Meibang Pesticide Co., Ltd., provided, contrast medicament 6% Fenarimol wetting powder (autogamy), 10% Wettable polyoxin powder (commercial), 25% second phonetic phenol suspending agent (autogamy), 95% tridemorph finish (autogamy), 2% pesticide corrosion 120 aqua (commercial).
Application Example hexachloro-benzene ancymidol and active component B and compositely prevent and treat the powdery mildew of cucumber test of pesticide effectiveness
This test arrangement is at Xian District, Shanxi Province suburban area, and investigation powdery mildew of cucumber disease index before medicine, in the dispenser of disease initial stage of origination, 5 days, 10 days, 20 days investigation disease indexes after dispenser also calculate preventive effect.Result of the test is as follows:
Table 14 Fenarimol and active component B and compositely prevent and treat the powdery mildew of cucumber test of pesticide effectiveness
As can be seen from Table 14, Fenarimol and active component B composite after effectively can prevent and treat powdery mildew of cucumber, through applicant test find Fenarimol and active component B composite after also can effectively prevent and treat cucumber downy mildew, gray mold, control efficiency is all higher than 95%, be better than the preventive effect of single dose, and the preventive effect phase is long, in test scope of medication, target crop is had no adverse effects.
Application Example seven Fenarimol and active component B and the composite control tomato blight test of pesticide effectiveness thereof
This test arrangement is at Xian District, Shanxi Province suburban area, and the sick disease index of investigation tomato before medicine, in the dispenser of disease initial stage of origination, 7 days, 15 days, 30 days investigation disease indexes after dispenser also calculate preventive effect.Result of the test is as follows:
Table 15 Fenarimol and active component B and the composite control tomato blight test of pesticide effectiveness thereof
As can be seen from Table 15, Fenarimol and active component B composite after effectively can prevent and treat tomato blight, through applicant test find Fenarimol and active component B composite after also effectively can prevent and treat cladosporium leaf and fruit mould of tomato, control efficiency is all higher than 96%, be better than the preventive effect of single dose, and the preventive effect phase is long, in test scope of medication, target crop is had no adverse effects.
Application Example eight Fenarimol and active component B and the composite control wheat powdery mildew test of pesticide effectiveness thereof
This test arrangement is in Weinan City Pucheng County, Shaanxi Province, and investigation wheat powdery mildew disease index before medicine, in the dispenser of disease initial stage of origination, 5 days, 15 days, 30 days investigation disease indexes after dispenser also calculate preventive effect.Result of the test is as follows:
Table 16 Fenarimol and active component B and the composite control wheat powdery mildew test of pesticide effectiveness thereof
As can be seen from Table 16, Fenarimol and active component B and composite control wheat powdery mildew thereof, through applicant test find Fenarimol and active component B composite after also can effectively prevent and treat wheat rust, banded sclerotial blight, control efficiency is all higher than 96%, be better than the preventive effect of single dose, and the preventive effect phase is long, in test scope of medication, target crop is had no adverse effects.
Application Example nine Fenarimol and active component B and the composite control apple peels and cores test of pesticide effectiveness thereof
This test arrangement is at Xianyang, Shanxi province suburban area, and investigation apple peels and cores disease index before medicine, in the dispenser of disease initial stage of origination, 7 days, 15 days, 30 days investigation disease indexes after dispenser also calculate preventive effect.Result of the test is as follows:
Table 17 Fenarimol and active component B and the composite control apple peels and cores test of pesticide effectiveness thereof
As can be seen from Table 17, Fenarimol and active component B composite after can effectively preventing and treating apple-tree spot defoliation, through applicant test find Fenarimol and active component B composite after also can effectively prevent and treat ring rot of apple, brown spot, control efficiency is all higher than 95%, be better than the preventive effect of single dose, and the preventive effect phase is long, in test scope of medication, target crop is had no adverse effects.
Application Example ten Fenarimol and active component B and the composite control pear scab test of pesticide effectiveness thereof
This test arrangement is at Xianyang, Shanxi province suburban area, and investigation pear scab disease index before medicine, in the dispenser of disease initial stage of origination, 10 days, 20 days, 45 days investigation disease indexes after dispenser also calculate preventive effect.Result of the test is as follows:
Table 18 Fenarimol and active component B and the composite control pear scab test of pesticide effectiveness thereof
As can be seen from Table 18, Fenarimol and active component B composite after effectively can prevent and treat pear scab, through applicant test find Fenarimol and active component B composite after also can effectively prevent and treat pear tree graywall, control efficiency is all higher than 96%, be better than the preventive effect of single dose, and the preventive effect phase is long, in test scope of medication, target crop is had no adverse effects.
After draw through tests different local throughout the country, Fenarimol and polyoxin, the phonetic phenol of second or its salt, tridemorph, the composite rear preventive effect to Common Diseases such as the powdery mildew in various crop, scab, epidemic disease, leaf mold, gray mold, downy mildew, spot defoliation, fusarium wilt, rust, graywall, brown spot, damping off, ring spot, banded sclerotial blight, leaf spot, anthracnose, rust of pesticide corrosion 120 are all more than 95%, be better than single dose preventive effect, synergistic effect is obvious.
Claims (6)
1. a bactericidal composition, active ingredient is active components A and active component B, it is characterized in that: active components A and active component B weight ratio are 1 ︰ 80 ~ 60 ︰ 1, and described active components A is selected from Fenarimol, and active component B is selected from polyoxin.
2. bactericidal composition according to claim 1, is characterized in that: the weight ratio of active components A and active component B is 1 ︰ 60 ~ 40 ︰ 1.
3. bactericidal composition according to claim 2, is characterized in that: the weight ratio of Fenarimol and polyoxin is 1 ︰ 25 ~ 15 ︰ 1.
4. bactericidal composition according to any one of claim 1 to 3, is characterized in that: composition makes wetting powder, water dispersible granules, suspending agent, suspension emulsion, aqueous emulsion, microemulsion, microcapsule suspending agent, microcapsule suspension-suspendinagent agent.
5. bactericidal composition according to claim 4 is for preventing and treating the purposes of disease on crops.
6. purposes according to claim 5, it is characterized in that, described disease is powdery mildew, scab, epidemic disease, leaf mold, gray mold, downy mildew, spot defoliation, fusarium wilt, rust, graywall, brown spot, damping off, ring spot, banded sclerotial blight, leaf spot, anthracnose, rust.
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| CN105851058A (en) * | 2015-01-21 | 2016-08-17 | 陕西汤普森生物科技有限公司 | Sterilization composition containing captan and copper preparation |
| CN106070337B (en) * | 2016-06-21 | 2018-11-30 | 江苏丘陵地区镇江农业科学研究所 | The fungicide and its application of antibiotic containing pyridimine nucleosides and cyprodinil |
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| CN102067851A (en) * | 2011-01-20 | 2011-05-25 | 陕西美邦农药有限公司 | Antibacterial composition containing polyoxin and methoxyacrylate compound |
| CN102067873A (en) * | 2011-02-19 | 2011-05-25 | 陕西美邦农药有限公司 | Bactericidal composition containing polyoxin and triazole compound |
| CN102138563A (en) * | 2011-02-16 | 2011-08-03 | 陕西美邦农药有限公司 | Antibacterial composition containing polyoxin |
-
2012
- 2012-08-23 CN CN201210302555.2A patent/CN103621562B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999031985A1 (en) * | 1997-12-18 | 1999-07-01 | Basf Aktiengesellschaft | Fungicide mixtures based on pyridine amides and fenarimol |
| CN101496514A (en) * | 2008-01-28 | 2009-08-05 | 北京绿色农华植保科技有限责任公司 | Method for preparing polyoxin B wettable powder |
| CN102067851A (en) * | 2011-01-20 | 2011-05-25 | 陕西美邦农药有限公司 | Antibacterial composition containing polyoxin and methoxyacrylate compound |
| CN102138563A (en) * | 2011-02-16 | 2011-08-03 | 陕西美邦农药有限公司 | Antibacterial composition containing polyoxin |
| CN102067873A (en) * | 2011-02-19 | 2011-05-25 | 陕西美邦农药有限公司 | Bactericidal composition containing polyoxin and triazole compound |
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| CN103621562A (en) | 2014-03-12 |
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