CN103563955A - Bactericidal composition containing bromuconazole - Google Patents
Bactericidal composition containing bromuconazole Download PDFInfo
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Abstract
The invention discloses a bactericidal composition containing bromuconazole, which contains an active component A and an active component B, wherein the active component A is selected from bromuconazole; the active component B is selected from any one of thiophanate-methyl, carbendazol, polyoxin, pyrimidine nucleoside antibiotics and acibenzolar; and the weight ratio of the active component A to the active component B is 1:80-60:1. The composition disclosed by the invention has higher activity for multiple diseases on multiple crops, and has obvious synergistic action, thereby widening the bactericidal spectrum. The composition has the characteristics of small dosage, rainfall erosion resistance and obvious synergistic action.
Description
Technical field
The invention belongs to technical field of pesticide, relate to the application of a kind of bactericidal composition containing bromuconazole in crop pest.
Technical background
Bromuconazole (bromuconazole) chemical name: 1-((2RS, 4RS; 2RS, 4RS) the bromo-2-(2 of-4-, 4-dichlorophenyl-) tetrahydrofurfuryl)-1H-1,2,4-triazole, bromuconazole can be prevented and treated Ascomycetes, Basidiomycetes and the Fungi Imperfecti pathogen on cereal crop, grape, fruit tree and vegetables effectively.In addition, also effective to Alternaria and Fusarium pathogen.
In the real process of agricultural production, preventing and treating the problem that 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 agricultural chemicals is all additive effect, really has the seldom composite of synergistic effect, especially synergistic effect very obviously, synergy ratio very high composite just still less.Through inventor's research, discovery is mutually composite by bromuconazole and thiophanate-methyl, carbendazim, polyoxin, antibiotic in pyrimidine nucleoside class, Acibenzolar, there is within the specific limits good synergistic effect, and relevant composite about bromuconazole and thiophanate-methyl, carbendazim, polyoxin, antibiotic in pyrimidine nucleoside class, Acibenzolar, there is not yet at present relevant report at home and abroad.
Summary of the invention
The object of the invention is to propose a kind of have synergistic function, use cost is low, preventive effect the is good bactericidal composition containing bromuconazole.
The present invention is achieved through the following technical solutions:
A kind of bactericidal composition containing bromuconazole, contain 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 bromuconazole, and active component B is selected from a kind of in thiophanate-methyl, carbendazim, polyoxin, antibiotic in pyrimidine nucleoside class, Acibenzolar; The preferred weight ratio of active components A and active component B is 1 ︰ 50～50 ︰ 1; More preferably the weight ratio of bromuconazole and thiophanate-methyl is 1: 20～10: 1, the weight ratio of bromuconazole and carbendazim is 1: 20～10: 1, the weight ratio of bromuconazole and polyoxin is 1: 20～20: 1, the weight ratio of bromuconazole and antibiotic in pyrimidine nucleoside class is 1: 20～20: 1, and the weight ratio of bromuconazole and Acibenzolar is 1: 5～20: 1; The weight ratio that most preferably is bromuconazole and thiophanate-methyl is 1: 15～5: 1, the weight ratio of bromuconazole and carbendazim is 1: 15～5: 1, the weight ratio of bromuconazole and polyoxin is 1: 10～10: 1, the weight ratio of bromuconazole and antibiotic in pyrimidine nucleoside class is 1: 10～10: 1, and the weight ratio of bromuconazole and Acibenzolar is 1 ︰ 1～10 ︰ 1.
The described bactericidal composition containing bromuconazole, composition is made wetting powder, water dispersible granules, suspending agent, aqueous emulsion, microemulsion, suspension emulsion, microcapsule suspending agent, microcapsule suspension-suspending agent.
The disease of the described bactericidal composition containing bromuconazole for preventing and treating crop; Described crop comprises cereal crops, legume crop, fiber crop, sugar [yielding, melon crop, fruits crop, dry fruit crop, hobby crop, root crop, oil crop, flowers crop, medicinal crop, raw material crop, green manure pasture crop; Described disease comprises downy mildew, peronospora tabacina, epidemic disease, gray mold, powdery mildew, rice blast, damping off, rust, scab, net blotch, graywall, leaf blight, glume blight, brown spot, black spot, ring spot, anthracnose, spot defoliation, stalk break, stem wilt, damping off, leaf spot, smut, green mould, penicilliosis, rust.
The amount of application when content of active component depends on independent use in bactericidal composition of the present invention, also depends on mixed ratio and the synergistic effect degree of a kind of compound and another kind of compound, and the while is also relevant with target disease.Conventionally in composition, the weight percentage of active component is gross weight 1%～90%, is preferably 5%～80%.According to different preparation types, active component content scope is different.Conventionally, liquid preparation contains 1%～60% active substance by weight, is preferably 5%～50%; Solid pharmaceutical preparation contains 5%～80% active substance by weight, is preferably 10%～80%.
In bactericidal composition of the present invention, at least contain a kind of surfactant, the dispersion of active component in water while being beneficial to use.Surface-active contents is 2%～30% of total formulation weight amount, and surplus is solid or liquid diluent.
The selected surfactant of bactericidal composition of the present invention is known in those skilled in the art: can be selected from one or more in dispersant, wetting agent, thickener or defoamer.According to different dosage form, in preparation, can also contain stabilizing agent known in those skilled in the art, antifreeze etc.
The bactericidal composition of invention can be by user before use through dilution or directly use.Its preparation can be prepared by processing method known in those skilled in the art, after being about to active component and mixing with liquid flux or solid carrier, then adds surfactant as one or more in dispersant, stabilizing agent, wetting agent, binding agent, defoamer etc.
When making wetting powder, composition comprises following component and content: active components A 0.5% ~ 60%, active component B 0.5% ~ 80%, dispersant 1% ~ 12%, wetting agent 1% ~ 8%, filler surplus.
When making water dispersible granules, composition comprises following component and content: active components A 0.5% ~ 60%, active component B 0.5% ~ 80%, dispersant 1% ~ 12%, wetting agent 1% ~ 8%, disintegrant 1% ~ 10%, binding agent 0 ~ 8%, filler surplus.
When making suspending agent, composition comprises following component and content: active components A 0.5% ~ 50%, active component B 0.5% ~ 50%, dispersant 1% ~ 10%, wetting agent 1% ~ 10%, defoamer 0.01% ~ 2%, thickener 0 ~ 2%, antifreeze 0 ~ 8%, deionized water add to 100%.
When making aqueous emulsion, composition comprises following component and content: active components A 0.5% ~ 50%, active component B 0.5% ~ 50%, solvent 1% ~ 20%, emulsifier 1% ~ 12%, antifreeze 0 ~ 8%, defoamer 0.01% ~ 2%, thickener 0 ~ 2%, deionized water add to 100%.
When making microemulsion, composition comprises following component and content: active components A 0.5% ~ 50%, active component B 0.5% ~ 50%, emulsifier 3% ~ 25%, solvent 1% ~ 10%, antifreeze 0 ~ 8%, defoamer 0.01% ~ 2%, deionized water add to 100%.
When making suspension emulsion, composition comprises following component and content: active components A 0.5% ~ 50%, active component B 0.5% ~ 50%, emulsifier 1% ~ 10%, dispersant 1% ~ 10%, solvent 1% ~ 20%, defoamer 0.01% ~ 2%, thickener 0 ~ 2%, antifreeze 0 ~ 8%, deionized water add to 100%.
When making microcapsule suspending agent, composition comprises following component and content: active components A 0.5% ~ 50%, active component B 0.5% ~ 50%, macromolecule cyst material 1% ~ 10%, dispersant 2% ~ 10%, solvent 1% ~ 10%, emulsifier 1% ~ 7%, pH adjusting agent 0.01% ~ 5%, defoamer 0.01% ~ 2%, deionized water add to 100%.
When making microcapsule suspension-suspending agent, composition comprises following component and content: active components A 0.5% ~ 50%, active component B 0.5% ~ 50%, macromolecule cyst material 1% ~ 12%, dispersant 1% ~ 12%, wetting agent 1% ~ 8%, solvent 1% ~ 15%, emulsifier 1% ~ 8%, 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:
Aqueous emulsion the key technical indexes of the present invention:
Microemulsion the key technical indexes of the present invention:
Suspension emulsion the key technical indexes of the present invention:
Microcapsule suspending agent the key technical indexes of the present invention:
Microcapsule suspension-suspending agent the key technical indexes of the present invention:
The invention has the advantages that:
(1) present composition has good synergy and lasting effect within the specific limits, and preventive effect is higher than single dose; (2) agricultural chemicals dosage reduces, and reduces the residual quantity of agricultural chemicals on crop, alleviates environmental pollution; (3) expanded fungicidal spectrum, multiple diseases has been had to greater activity as downy mildew, peronospora tabacina, epidemic disease, gray mold, powdery mildew, rice blast, damping off, rust, scab, net blotch, graywall, leaf blight, glume blight, brown spot, black spot, ring spot, anthracnose, spot defoliation, stalk break, stem wilt, damping off, leaf spot, smut, green mould, penicilliosis, rust.
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 1～13 wetting powder
Bromuconazole, active component B, dispersant, wetting agent, filler are mixed, in mixed cylinder, mix, after airslide disintegrating mill is pulverized, mix again, can be made into wetting powder product of the present invention.Specifically in Table 1,2.
Table 1 embodiment 1～6 each component and content
Table 2 embodiment 7～13 each component and content
Embodiment 14～26 water dispersible granules
Bromuconazole, active component B, dispersant, wetting agent, disintegrant, filler etc. are obtained to the particle diameter needing through air-flow crushing together, then add other auxiliary agents such as binding agent (can add and can not add), obtain the materials of granulating.By item quantitatively send in fluidized bed granulation dryer through granulation and dry after, can make water dispersible granules product of the present invention, specifically in Table 3,4.
Table 3 embodiment 14～19 each component and content
Table 4 embodiment 20～26 each component and content
Embodiment 27～39 suspending agents
By dispersant, wetting agent, defoamer, thickener (can add and can not add), antifreeze (can add and can not add), through high speed shear, mix, add bromuconazole, active component B, in ball mill, ball milling is 2 ~ 3 hours, make diameter of particle all below 5 μ m, surplus is supplied by deionized water, can make suspending agent product of the present invention, specifically in Table 5,6.
Table 5 embodiment 27～32 each component and content
Table 6 embodiment 33～39 each component and content
Embodiment 40～48 aqueous emulsions
Bromuconazole, active component B, solvent, emulsifier are added together, make to be dissolved into even oil phase; Deionized water, antifreeze (can add and can not add), thickener (can add and can not add), defoamer are mixed, become homogeneous water.Under high-speed stirred, water is added to oil phase, make aqueous emulsion product of the present invention.Specifically in Table 7,8.
Table 7 embodiment 40～43 each component and content
Table 8 embodiment 44～48 each component and content
Thiophanate-methyl, carbendazim, polyoxin, antibiotic in pyrimidine nucleoside class, Acibenzolar in table 1 ~ 8 are exchanged, can make novel formulation.
Embodiment 49～51 microemulsions
Bromuconazole, active component B are dissolved in the homogenizer that solvent is housed, by emulsifier, antifreeze (can add and can not add), defoamer, join in the homogenizer that above-mentioned solution is housed, surplus gives strong mixing and homogenize after supplying by deionized water, finally obtain the as clear as crystal microemulsion product of the present invention of outward appearance.Specifically in Table 9.
Table 9 embodiment 49～51 each component and content
Embodiment 52～56 suspension emulsions
Dispersant, defoamer, thickener (can add and can not add), antifreeze (can add and can not add) are mixed through high speed shear, add active component B, in ball mill, ball milling is 2 ~ 3 hours, make diameter of particle all below 5 μ m, make active component B suspending agent, then by bromuconazole, emulsifier, solvent and various auxiliary agent with the direct emulsification of high speed agitator in suspending agent, make suspension emulsion product of the present invention.Specifically in Table 10.
Table 10 embodiment 52～56 each component and content
In showing, thiophanate-methyl, carbendazim, Acibenzolar exchange, and can make novel formulation.
Embodiment 57～59 microcapsule suspending agents
By bromuconazole, active component B, macromolecule cyst material, solvent, make to be dissolved into even oil phase, under shearing condition, oil phase is joined in the aqueous phase solution that contains emulsifier, pH adjusting agent, dispersant, defoamer, surplus is supplied by deionized water, 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 11.
Table 11 embodiment 57～59 each component and content
Embodiment 60～62 microcapsule suspensions-suspending agent
By bromuconazole, macromolecule cyst material, solvent, make to be dissolved into even oil phase, oil phase is joined in the aqueous phase solution that contains emulsifier, pH adjusting agent under shearing condition, make finely disseminated microcapsule suspending agent.Dispersant, wetting agent, defoamer, thickener (can add and can not add) are mixed through high speed shear, add active component B, in ball mill, ball milling is 2 ~ 3 hours, make diameter of particle all below 5 μ m, make suspending agent, then suspending agent is joined in the aqueous phase solution of micro-capsule suspension, deionized water is supplied surplus, makes the finely disseminated microcapsule suspension-suspending agent of present composition product.Specifically in Table 12.
Table 12 embodiment 60～62 each component and content
In table 12, active component B is thiophanate-methyl, carbendazim, Acibenzolar.
The embodiment of the present invention is the method that adopts Toxicity Determination and field trial to combine.First by Toxicity Determination, the 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 carries out field trial.
Test method: after the effective inhibition concentration scope of each medicament is determined in prerun, medicament is established respectively 5 dosage by active constituent content and processed, and establishes clear water contrast.With reference to < < farm-chemical indoor determination test rule bactericide > >, carry out, adopt mycelial growth rate method to measure the virulence of medicament to crop germ.After 72h, by right-angled intersection method, measure colony diameter, calculate and respectively process net growth, mycelial growth inhibition rate.
Net growth (mm)=measurement colony diameter-5
Mycelial growth inhibition rate is converted into probit value (y), and liquor strength (μ g/mL) converts logarithm value to (x), with method of least squares, tries to achieve virulence regression equation (y=a+bx), and calculates thus the EC of every kind of medicament
50value.According to Wadley method, calculate the different proportioning synergy ratio (SR) of two medicaments, SR < 0.5 is antagonism simultaneously, and 0.5≤SR≤1.5 are summation action, and SR > 1.5 is synergistic effect.Computing formula is as follows:
Wherein: a, b are respectively active components A and active component B shared ratio in combination;
A is bromuconazole;
B is selected from a kind of in thiophanate-methyl, carbendazim, polyoxin, antibiotic in pyrimidine nucleoside class, Acibenzolar.
Application Example two:
For trying disease: powdery mildew of cucumber, test medicine provides by Shaanxi Mei Bang agricultural chemicals Co., Ltd, experimental scheme: effective inhibition concentration scope of determining the two different proportioning mixture of bromuconazole and thiophanate-methyl through preliminary experiment.
Toxicity test result
The composite toxicity test analysis of results table to powdery mildew of cucumber of table 13 bromuconazole and thiophanate-methyl
As shown in Table 13, the composite proportioning of preventing and treating powdery mildew of cucumber of bromuconazole and thiophanate-methyl is when 1 ︰ 80 ~ 60 ︰ 1, synergy ratio SR is all greater than 1.5, illustrate that both are mixed and all show synergistic effect in 1 ︰ 80 ~ 60 ︰ 1 scopes, the proportioning of bromuconazole and thiophanate-methyl was at 1: 20～5: 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.30.Through applicant, test and find that the proportioning of bromuconazole and thiophanate-methyl is 10 ︰ 1,9 ︰ 1,8 ︰ 1,7 ︰ 1,6 ︰ 1,5 ︰ 1,4 ︰ 1,3 ︰ 1,2 ︰ 1,1 ︰ 1,1 ︰ 2,1 ︰ 3,1 ︰ 4,1 ︰ 5,1 ︰ 6,1 ︰ 7,1 ︰ 8,1 ︰ 9,1 ︰ 10,1 ︰ 15,1 ︰ 20, when wherein bromuconazole and thiophanate-methyl weight ratio are 1:5, synergy ratio is maximum, and synergistic effect is the most obvious.
Application Example three:
For examination disease: apple mildew, test medicine provides by Shaanxi Mei Bang agricultural chemicals Co., Ltd, experimental scheme: effective inhibition concentration scope of determining bromuconazole and carbendazim active compound and the two different proportioning mixture through preliminary experiment
Toxicity test result
The composite toxicity test analysis of results table to apple mildew of table 14 bromuconazole and carbendazim
As shown in Table 14, the composite proportioning of preventing and treating apple mildew of bromuconazole and carbendazim is when 1 ︰ 80 ~ 60 ︰ 1, synergy ratio SR is all greater than 1.5, illustrate that both are mixed and all show synergistic effect in 1 ︰ 80 ~ 60 ︰ 1 scopes, the proportioning of bromuconazole and carbendazim is at 1 ︰ 20～10: 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.29.Through applicant, test and find that the proportioning of bromuconazole and carbendazim is 10 ︰ 1,9 ︰ 1,8 ︰ 1,7 ︰ 1,6 ︰ 1,5 ︰ 1,4 ︰ 1,3 ︰ 1,2 ︰ 1,1 ︰ 1,1 ︰ 2,1 ︰ 3,1 ︰ 4,1 ︰ 5,1 ︰ 6,1 ︰ 7,1 ︰ 8,1 ︰ 9,1 ︰ 10,1 ︰ 15,1 ︰ 20, when wherein bromuconazole and carbendazim weight ratio are 1:5, synergy ratio is maximum, and synergistic effect is the most obvious.
Application Example four:
For trying disease: pear scab, test medicine provides by Shaanxi Mei Bang agricultural chemicals Co., Ltd, experimental scheme: effective inhibition concentration scope of determining the former medicine of bromuconazole and polyoxin and the two different proportioning mixture through preliminary experiment.
Toxicity test result
The composite toxicity test analysis of results table to pear scab of table 15 bromuconazole and polyoxin
As shown in Table 15, the proportioning of the composite control pear scab of bromuconazole and polyoxin is when 1 ︰ 80 ~ 60 ︰ 1, synergy ratio SR is all greater than 1.5, illustrate that both are mixed and all show synergistic effect in 1 ︰ 80 ~ 60 ︰ 1 scopes, the proportioning of bromuconazole and polyoxin was at 1: 20～20: 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.20.Through applicant, test and find that the proportioning of bromuconazole and polyoxin is 20 ︰ 1,15 ︰ 1,10 ︰ 1,9 ︰ 1,8 ︰ 1,7 ︰ 1,6 ︰ 1,5 ︰ 1,4 ︰ 1,3 ︰ 1,2 ︰ 1,1 ︰ 1,1 ︰ 2,1 ︰ 3,1 ︰ 4,1 ︰ 5,1 ︰ 6,1 ︰ 7,1 ︰ 8,1 ︰ 9,1 ︰ 10,1 ︰ 15,1 ︰ 20, when wherein bromuconazole and polyoxin weight ratio are 1:1, synergy ratio is maximum, and synergistic effect is the most obvious.
Application Example five:
For trying disease: powdery mildew of cucumber, test medicine provides by Shaanxi Mei Bang agricultural chemicals Co., Ltd, experimental scheme: effective inhibition concentration scope of determining the former medicine of bromuconazole and antibiotic in pyrimidine nucleoside class and the two different proportioning mixture through preliminary experiment.
Toxicity test result
The composite toxicity test analysis of results table to powdery mildew of cucumber of table 16 bromuconazole and antibiotic in pyrimidine nucleoside class
As shown in Table 16, the composite proportioning of preventing and treating powdery mildew of cucumber of bromuconazole and antibiotic in pyrimidine nucleoside class is when 1 ︰ 80 ~ 60 ︰ 1, synergy ratio SR is all greater than 1.5, illustrate that both are mixed and all show synergistic effect in 1 ︰ 80 ~ 60 ︰ 1 scopes, the proportioning of bromuconazole and antibiotic in pyrimidine nucleoside class was at 1: 20～20: 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.20.Through applicant, test and find that the proportioning of bromuconazole and antibiotic in pyrimidine nucleoside class is 20 ︰ 1,15 ︰ 1,10 ︰ 1,9 ︰ 1,8 ︰ 1,7 ︰ 1,6 ︰ 1,5 ︰ 1,4 ︰ 1,3 ︰ 1,2 ︰ 1,1 ︰ 1,1 ︰ 2,1 ︰ 3,1 ︰ 4,1 ︰ 5,1 ︰ 6,1 ︰ 7,1 ︰ 8,1 ︰ 9,1 ︰ 10,1 ︰ 15,1 ︰ 20, when wherein bromuconazole and antibiotic in pyrimidine nucleoside class weight ratio are 1:1, synergy ratio is maximum, and synergistic effect is the most obvious.
Application Example six:
For trying disease: pear scab, test medicine provides by Shaanxi Mei Bang agricultural chemicals Co., Ltd, experimental scheme: effective inhibition concentration scope of determining the former medicine of bromuconazole and Acibenzolar and the two different proportioning mixture through preliminary experiment.
The composite toxicity test analysis of results table to pear scab of table 17 bromuconazole and Acibenzolar
As shown in Table 17, the proportioning of the composite control pear scab of bromuconazole and Acibenzolar is when 1 ︰ 80 ~ 60 ︰ 1, synergy ratio SR is all greater than 1.5, illustrate that both are mixed and all show synergistic effect in 1 ︰ 80 ~ 60 ︰ 1 scopes, the proportioning of bromuconazole and Acibenzolar was at 1: 5～20: 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.25.Through applicant, test and find that the proportioning of bromuconazole and Acibenzolar is 20 ︰ 1,15 ︰ 1,10 ︰ 1,9 ︰ 1,8 ︰ 1,7 ︰ 1,6 ︰ 1,5 ︰ 1,4 ︰ 1,3 ︰ 1,2 ︰ 1,1 ︰ 1,1 ︰ 2,1 ︰ 3,1 ︰ 4,1 ︰ 5, when wherein bromuconazole and Acibenzolar weight ratio are 4:1, synergy ratio is maximum, and synergistic effect is the most obvious.
Through test, find: after bromuconazole and active component B are composite, the control of the downy mildew in various crop, peronospora tabacina, epidemic disease, gray mold, powdery mildew, rice blast, damping off, rust, scab, net blotch, graywall, brown spot, leaf blight, glume blight, black spot, ring spot, anthracnose, spot defoliation, stalk break, stem wilt, damping off, leaf spot, smut, green mould, penicilliosis, rust is had to obvious synergistic effect, synergy ratio is all more than 1.5.
Experimental section: test medicine is researched and developed, provided by Shaanxi Mei Bang agricultural chemicals Co., Ltd, contrast medicament 20% bromuconazole suspending agent (autogamy), 70% thiophanate-methyl water dispersible granules (commercial), 40% carbendazim suspending agent (commercial), 10% polyoxin wetting powder (commercial), 4% antibiotic in pyrimidine nucleoside class aqua (commercial), 20% Acibenzolar wetting powder (autogamy).
Application Example seven bromuconazoles and active component B and the composite control potato late blight test of pesticide effectiveness thereof
This experimental establishment, at Shaanxi Province's Weinan City, is investigated the potato late blight state of an illness before medicine, in the dispenser for the first time of state of an illness initial stage, once, dispenser is 2 times altogether in dispenser in every 7 days.Within after dispenser 7 days, 14 days, 30 days for the second time, investigate respectively disease index and calculate preventive effect.Experimental result is as follows:
Table 18 bromuconazole and active component B and the composite control potato late blight test of pesticide effectiveness thereof
As can be seen from Table 18, bromuconazole and active component B and composite after can effectively prevent and treat potato late blight, control efficiency is all 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 bromuconazoles and active component B and the composite powdery mildew of cucumber test of pesticide effectiveness of preventing and treating thereof
This test arrangement, in Xi'an City, Shanxi Province, is investigated the powdery mildew of cucumber state of an illness before medicine, in the dispenser for the first time of state of an illness initial stage, once, dispenser is 2 times altogether in dispenser in every 7 days.Within after dispenser 3 days, 7 days, 15 days for the second time, investigate respectively disease index and calculate preventive effect.Experimental result is as follows:
Table 19 bromuconazole and active component B and the composite powdery mildew of cucumber test of pesticide effectiveness of preventing and treating thereof
As can be seen from Table 19, bromuconazole and active component B and composite after can effectively prevent and treat powdery mildew of cucumber, control efficiency is all 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 bromuconazoles and active component B and the composite control pear scab test of pesticide effectiveness thereof
This test arrangement, in Xianyang, Shanxi province city, is investigated the pear scab state of an illness before medicine, in the dispenser for the first time of state of an illness initial stage, once, dispenser is 2 times altogether in dispenser in every 7 days.Within after dispenser 7 days, 14 days, 30 days for the second time, investigate respectively disease index and calculate preventive effect.Experimental result is as follows:
Table 20 bromuconazole and active component B and the composite control pear scab test of pesticide effectiveness thereof
As can be seen from Table 20, bromuconazole and active component B and composite rear efficiency control pear scab thereof, control efficiency is all 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 bromuconazoles and active component B and the composite rice sheath blight disease test of pesticide effectiveness of preventing and treating thereof
This test arrangement, at Shaanxi Province's Hanzhong City, is investigated the rice sheath blight disease state of an illness before medicine, in the dispenser for the first time of state of an illness initial stage, once, dispenser is 2 times altogether in dispenser in every 7 days.Within after dispenser 7 days, 14 days, 30 days for the second time, investigate respectively disease index and calculate preventive effect.Experimental result is as follows:
Table 21 bromuconazole and active component B and the composite rice sheath blight disease test of pesticide effectiveness of preventing and treating thereof
As can be seen from Table 21, bromuconazole and active component B and composite after can effectively prevent and treat rice sheath blight disease, control efficiency is all 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 11 bromuconazoles and active component B and the composite downy mildew of garpe test of pesticide effectiveness of preventing and treating thereof
This experimental establishment, at Shaanxi Province's Weinan City, is investigated the downy mildew of garpe state of an illness before medicine, in the dispenser for the first time of state of an illness initial stage, once, dispenser is 2 times altogether in dispenser in every 7 days.Within after dispenser 7 days, 14 days, 30 days for the second time, investigate respectively disease index and calculate preventive effect.Experimental result is as follows:
Table 22 bromuconazole and active component B and the composite downy mildew of garpe test of pesticide effectiveness of preventing and treating thereof
As can be seen from Table 22, bromuconazole and active component B and composite after can effectively prevent and treat downy mildew of garpe, control efficiency is all 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 12 bromuconazoles and active component B and the composite control citrus anthracnose test of pesticide effectiveness thereof
This test arrangement, at Shaanxi Province's Hanzhong City, is investigated the citrus anthracnose state of an illness before medicine, in the dispenser for the first time of state of an illness initial stage, once, dispenser is 2 times altogether in dispenser in every 7 days.Within after dispenser 7 days, 14 days, 30 days for the second time, investigate respectively disease index and calculate preventive effect.Experimental result is as follows:
Table 23 bromuconazole and active component B and the composite control citrus anthracnose test of pesticide effectiveness thereof
As can be seen from Table 23, bromuconazole and active component B and composite after can effectively prevent and treat citrus anthracnose, control efficiency is all 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 through different local throughout the country tests, draw, bromuconazole and thiophanate-methyl, carbendazim, polyoxin, antibiotic in pyrimidine nucleoside class, Acibenzolar is composite rear to the downy mildew in various crop, peronospora tabacina, epidemic disease, gray mold, powdery mildew, rice blast, damping off, rust, scab, net blotch, graywall, brown spot, leaf blight, glume blight, black spot, ring spot, anthracnose, spot defoliation, stalk break, stem wilt, damping off, leaf spot, smut, green mould, penicilliosis, the preventive effect of the Common Diseases such as rust all 95% with on excellent, in single dose preventive effect, synergistic effect is obvious.
Claims (6)
1. the bactericidal composition containing bromuconazole, it is characterized in that: contain 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 bromuconazole, and active component B is selected from a kind of in thiophanate-methyl, carbendazim, polyoxin, antibiotic in pyrimidine nucleoside class, Acibenzolar.
2. the bactericidal composition containing bromuconazole according to claim 1, is characterized in that: the weight ratio of active components A and active component B is 1: 50～50: 1.
3. the bactericidal composition containing bromuconazole according to claim 2, is characterized in that:
The weight ratio of bromuconazole and thiophanate-methyl is 1: 20～10: 1;
The weight ratio of bromuconazole and carbendazim is 1: 20～10: 1;
The weight ratio of bromuconazole and polyoxin is 1: 20～20: 1;
The weight ratio of bromuconazole and antibiotic in pyrimidine nucleoside class is 1: 20～20: 1;
The weight ratio of bromuconazole and Acibenzolar is 1: 5～20: 1.
4. according to the bactericidal composition containing bromuconazole described in any one in claim 1～3, it is characterized in that: composition is made wetting powder, water dispersible granules, suspending agent, aqueous emulsion, microemulsion, suspension emulsion, microcapsule suspending agent, microcapsule suspension-suspending agent.
5. the bactericidal composition containing bromuconazole according to claim 4 is for preventing and treating the purposes of crop pest.
6. purposes according to claim 5, is characterized in that: described disease comprises downy mildew, peronospora tabacina, epidemic disease, gray mold, powdery mildew, rice blast, damping off, rust, scab, net blotch, graywall, leaf blight, glume blight, brown spot, black spot, ring spot, anthracnose, spot defoliation, stalk break, stem wilt, damping off, leaf spot, smut, green mould, penicilliosis, rust.
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