CN103651371A - High-efficiency bactericidal composition containing zoxamide - Google Patents
High-efficiency bactericidal composition containing zoxamide Download PDFInfo
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Abstract
The invention discloses a high-efficiency bactericidal composition containing zoxamide, which contains an active component A and an active component B, wherein the active component A is selected from zoxamide; the active component B is selected from any one of ethirimol or salts thereof, triflumizole, tetraconazole and prothioconazole; and the weight ratio of the active component A to the active component B is 1:60-80:1. The composition disclosed by the invention has higher activity for multiple diseases on multiple crops, has obvious synergistic action, widens the bactericidal spectrum, and 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 efficient bactericidal composite containing zoxamide in crop pest.
Technical background
Zoxamide is a kind of efficient protective fungicide that has; there is long lasting period and good resistance of rainwater washing against performance; its mechanism of action is very unique in Oomycete bactericide, and the breaking of its combination by tubulin-subunit and microtubule cytoskeleton suppressed sclerotium and divided.Zoxamide do not affect move about spore in move about, sporangiocyst forms or sprout.Be accompanied by caryocinetic first circulation of bacterium, the elongation of germ tube is suppressed, thereby stops disease mattress to penetrate host plant.
The phonetic phenates of second is bupirimate.
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 zoxamide and the phonetic phenol of second or its salt, fluorine bacterium azoles, tetraconazole, prothioconazoles, there is within the specific limits good synergistic effect, and relevant composite about the phonetic phenol of zoxamide and second or its salt, fluorine bacterium azoles, tetraconazole, prothioconazoles, 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 efficient bactericidal composite containing zoxamide.
The present invention is achieved through the following technical solutions:
A kind of efficient bactericidal composite containing zoxamide, contain active components A and active component B, active components A and active component B weight ratio are 1: 60～80: 1, described active components A is selected from zoxamide, and active component B is selected from a kind of in the phonetic phenol of second or its salt, fluorine bacterium azoles, tetraconazole, prothioconazoles; The weight ratio that is preferably active components A and active component B is 1 ︰ 40～60 ︰ 1; More preferably the weight ratio of the phonetic phenol of zoxamide and second or its salt is 1: 20～10: 1, the weight ratio of zoxamide and fluorine bacterium azoles is 1: 10～20: 1, the weight ratio of zoxamide and tetraconazole is 1: 10～30: 1, and the weight ratio of zoxamide and prothioconazoles is 1: 20～20: 1; Most preferably the weight ratio of the phonetic phenol of zoxamide and second or its salt is 1: 14～4: 1, the weight ratio of zoxamide and fluorine bacterium azoles is 1: 4～9: 1, the weight ratio of zoxamide and tetraconazole is 1: 4～14: 1, and the weight ratio of zoxamide and prothioconazoles is 1: 9～9: 1.
The described efficient bactericidal composite containing zoxamide, 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 efficient bactericidal composite containing zoxamide 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 powdery mildew, brown spot, scab, epidemic disease, downy mildew, gray mold, rice blast, false smut, banded sclerotial blight, bakanae disease, leaf blight, stripe disease, angular leaf spot, soft rot, damping off, fusarium wilt, rust, stalk break, net blotch, balck shank.
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.
Bactericidal composition of the present 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 add surfactant as one or more in dispersant, stabilizing agent, wetting agent, binding agent, antifreeze, disintegrant, defoamer etc.According to different dosage form, in preparation, can also contain antifreeze known in those skilled in the art etc.
When making wetting powder, composition comprises following component and content: active components A 0.5% ~ 80%, active component B 0.5% ~ 60%, 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% ~ 80%, active component B 0.5% ~ 60%, 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 powdery mildew, brown spot, scab, epidemic disease, downy mildew, gray mold, rice blast, false smut, banded sclerotial blight, bakanae disease, leaf blight, stripe disease, angular leaf spot, soft rot, damping off, fusarium wilt, rust, stalk break, net blotch, balck shank.
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 1～12 wetting powder
Zoxamide, 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 16 each component and content
Table 2 embodiment 7～12 each component and content
Embodiment 13～24 water dispersible granules
Zoxamide, 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 13～18 each component and content
Table 4 embodiment 19～24 each component and content
Embodiment 25～36 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 zoxamide, 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 25～30 each component and content
Table 6 embodiment 31～36 each component and content
Embodiment 37～45 aqueous emulsions
Zoxamide, 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 37～40 each component and content
Table 8 embodiment 41～45 each component and content
The phonetic phenol of second in table 1 ~ 8 or its salt, fluorine bacterium azoles, tetraconazole, prothioconazoles are exchanged, can make novel formulation.
Embodiment 46～48 microemulsions
Zoxamide, 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 46～48 each component and content
Embodiment 49～51 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 zoxamide, in ball mill, ball milling is 2 ~ 3 hours, make diameter of particle all below 5 μ m, make zoxamide suspending agent, then by active component B, 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 49～51 each component and content
Embodiment 52～54 microcapsule suspending agents
By zoxamide, 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 52～54 each component and content
Embodiment 55～57 microcapsule suspensions-suspending agent
By active component B, 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 zoxamide, 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 55～57 each component and content
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 zoxamide;
B is selected from a kind of in the phonetic phenol of second or its salt, fluorine bacterium azoles, tetraconazole, prothioconazoles.
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 phonetic phenol of zoxamide and second or the two different proportioning mixture of its salt through preliminary experiment.
Toxicity test result
The composite toxicity test analysis of results table to powdery mildew of cucumber of the phonetic phenol of table 13 zoxamide and second or its salt
As shown in Table 13, the composite proportioning of preventing and treating powdery mildew of cucumber of the phonetic phenol of zoxamide and second or its salt is when 1 ︰ 60 ~ 80 ︰ 1, synergy ratio SR is all greater than 1.5, illustrate that both are mixed and all show synergistic effect in 1 ︰ 60 ~ 80 ︰ 1 scopes, the proportioning of the phonetic phenol of zoxamide and second or its salt was at 1: 20～10: 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.20.Through applicant, test and find that the proportioning of zoxamide and the phonetic phenol of second or its salt 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 the phonetic phenol of zoxamide and second or its salt weight ratio are 1:2, synergy ratio is maximum, and synergistic effect is the most obvious.
Application Example three:
For examination disease: powdery mildew of strawberry, test medicine provides by Shaanxi Mei Bang agricultural chemicals Co., Ltd, experimental scheme: effective inhibition concentration scope of determining zoxamide and the former medicine of fluorine bacterium azoles and the two different proportioning mixture through preliminary experiment
Toxicity test result
The composite toxicity test analysis of results table to powdery mildew of strawberry of table 14 zoxamide and fluorine bacterium azoles
As shown in Table 14, the proportioning of zoxamide and the composite control powdery mildew of strawberry of fluorine bacterium azoles is when 1 ︰ 60 ~ 80 ︰ 1, synergy ratio SR is all greater than 1.5, illustrate that both are mixed and all show synergistic effect in 1 ︰ 60 ~ 80 ︰ 1 scopes, the proportioning of zoxamide and fluorine bacterium azoles is at 1 ︰ 10～20: 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.25.Through applicant, test and find that the proportioning of zoxamide and fluorine bacterium azoles 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, when wherein zoxamide and fluorine bacterium azoles weight ratio are 2:1, synergy ratio is maximum, and synergistic effect is the most obvious.
Application Example four:
For trying disease: downy mildew of garpe, test medicine provides by Shaanxi Mei Bang agricultural chemicals Co., Ltd, experimental scheme: effective inhibition concentration scope of determining the former medicine of zoxamide and tetraconazole and the two different proportioning mixture through preliminary experiment.
Toxicity test result
The composite toxicity test analysis of results table to downy mildew of garpe of table 15 zoxamide and tetraconazole
As shown in Table 15, the composite proportioning of preventing and treating downy mildew of garpe of zoxamide and tetraconazole is when 1 ︰ 60 ~ 80 ︰ 1, synergy ratio SR is all greater than 1.5, illustrate that both are mixed and all show synergistic effect in 1 ︰ 60 ~ 80 ︰ 1 scopes, the proportioning of zoxamide and tetraconazole was at 1: 10～30: 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.30.Through applicant, test and find that the proportioning of zoxamide and tetraconazole is 30 ︰ 1,25 ︰ 1,20 ︰ 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, when wherein zoxamide and tetraconazole weight ratio are 4:1, synergy ratio is maximum, and synergistic effect is the most obvious.
Application Example five:
For trying disease: wheat powdery mildew, test medicine provides by Shaanxi Mei Bang agricultural chemicals Co., Ltd, experimental scheme: effective inhibition concentration scope of determining the former medicine of zoxamide and prothioconazoles and the two different proportioning mixture through preliminary experiment.
Toxicity test result
The composite toxicity test analysis of results table to wheat powdery mildew of table 16 zoxamide and prothioconazoles
As shown in Table 16, the proportioning of the composite control wheat powdery mildew of zoxamide and prothioconazoles is when 1 ︰ 60 ~ 80 ︰ 1, synergy ratio SR is all greater than 1.5, illustrate that both are mixed and all show synergistic effect in 1 ︰ 60 ~ 80 ︰ 1 scopes, the proportioning of zoxamide and prothioconazoles 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 zoxamide and prothioconazoles 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 zoxamide and prothioconazoles weight ratio are 1:1, synergy ratio is maximum, and synergistic effect is the most obvious.
Through test, find: after zoxamide and active component B are composite, the control of the powdery mildew in various crop, brown spot, scab, epidemic disease, downy mildew, gray mold, rice blast, false smut, banded sclerotial blight, bakanae disease, leaf blight, stripe disease, angular leaf spot, soft rot, damping off, fusarium wilt, rust, stalk break, net blotch, balck shank is had to obvious synergistic effect, synergy ratio is all more than 1.5.
Effect experiment part: test medicine is researched and developed, provided by Shaanxi Mei Bang agricultural chemicals Co., Ltd, contrast medicament 20% zoxamide suspending agent (autogamy), the 25% phonetic phenol suspending agent of second (commercial) (50% bupirimate wetting powder (autogamy)), 30% triflumizole wettable powder (commercial), 4% tetraconazole aqueous emulsion (commercial), 20% prothioconazoles suspending agent (autogamy).
Application Example six zoxamides and active component B and the composite powdery mildew of cucumber test of pesticide effectiveness of preventing and treating thereof
This experimental establishment, in Jingyang County, Shaanxi 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 7 days, 14 days, 30 days for the second time, investigate respectively disease index and calculate preventive effect.Experimental result is as follows:
Table 17 zoxamide 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 17, zoxamide 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.Gray mold of cucumber, downy mildew, scab, damping off are had to good preventive effect, and preventive effect is all higher than 96% simultaneously.
Application Example seven zoxamides and active component B and the composite control wheat powdery mildew test of pesticide effectiveness thereof
This test arrangement, at Shaanxi Province's Weinan City, is investigated the wheat powdery mildew 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 18 zoxamide and active component B and the test of composite control wheat powdery mildew effect thereof
As can be seen from Table 18, zoxamide and active component B and composite after can effectively prevent and treat wheat powdery mildew, control efficiency is all better than the preventive effect of single dose, and the preventive effect phase is long, in test, target crop is had no adverse effects in scope of medication.Wheat net blotch, rust, moire disease are had to good preventive effect, and preventive effect is all higher than 96% simultaneously.
Application Example eight zoxamides and active component B and the composite control grape grey mould test of pesticide effectiveness thereof
This test arrangement, at Shaanxi Province's Weinan City, is investigated the grape grey mould 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 19 zoxamide and active component B and the composite control grape grey mould test of pesticide effectiveness thereof
As can be seen from Table 19, zoxamide and active component B and composite rear efficiency control grape grey mould 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.Downy mildew of garpe is also had to good preventive effect, and preventive effect is all higher than 96% simultaneously.
Application Example nine zoxamides and active component B and the composite control rice blast test of pesticide effectiveness thereof
This test arrangement, at Shaanxi Province's Hanzhong City, is investigated the rice blast 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 zoxamide and active component B and the composite control rice blast test of pesticide effectiveness thereof
As can be seen from Table 20, zoxamide and active component B and composite after can effectively prevent and treat rice blast, 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.Rice green smut, banded sclerotial blight, bakanae disease are had to good preventive effect, and preventive effect is all higher than 96% simultaneously.
Application Example ten zoxamides and active component B and the composite control tomato blight test of pesticide effectiveness thereof
This experimental establishment, in Xi'an City, Shanxi Province, is investigated the tomato 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 21 zoxamide and active component B and the composite control tomato blight test of pesticide effectiveness thereof
As can be seen from Table 21, zoxamide and active component B and composite after can effectively prevent and treat tomato 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.Tomato damping off, gray mold are also had to good preventive effect, and preventive effect is all higher than 96% simultaneously.
After through different local throughout the country tests, draw, the phonetic phenol of zoxamide and second or its salt, fluorine bacterium azoles, tetraconazole, prothioconazoles composite rear to the preventive effect of the Common Diseases such as the powdery mildew in various crop, brown spot, scab, epidemic disease, downy mildew, gray mold, rice blast, false smut, banded sclerotial blight, bakanae disease, leaf blight, stripe disease, angular leaf spot, soft rot, damping off, fusarium wilt, rust, stalk break, net blotch, balck shank all more than 95%, be better than single dose preventive effect, synergistic effect is obvious.
Claims (6)
1. the efficient bactericidal composite containing zoxamide, it is characterized in that: contain active components A and active component B, active components A and active component B weight ratio are 1: 60～80: 1, described active components A is selected from zoxamide, and active component B is selected from a kind of in the phonetic phenol of second or its salt, fluorine bacterium azoles, tetraconazole, prothioconazoles.
2. the efficient bactericidal composite containing zoxamide according to claim 1, is characterized in that: the weight ratio of active components A and active component B is 1: 40～60: 1.
3. the efficient bactericidal composite containing zoxamide according to claim 2, is characterized in that:
The weight ratio of the phonetic phenol of zoxamide and second or its salt is 1: 20～10: 1;
The weight ratio of zoxamide and fluorine bacterium azoles is 1: 10～20: 1;
The weight ratio of zoxamide and tetraconazole is 1: 10～30: 1;
The weight ratio of zoxamide and prothioconazoles is 1: 20～20: 1.
4. according to the efficient bactericidal composite containing zoxamide 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 efficient bactericidal composite containing zoxamide 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 powdery mildew, brown spot, scab, epidemic disease, downy mildew, gray mold, rice blast, false smut, banded sclerotial blight, bakanae disease, leaf blight, stripe disease, angular leaf spot, soft rot, damping off, fusarium wilt, rust, stalk break, net blotch, balck shank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210330652.2A CN103651371B (en) | 2012-09-07 | 2012-09-07 | High-efficiency bactericidal composition containing zoxamide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210330652.2A CN103651371B (en) | 2012-09-07 | 2012-09-07 | High-efficiency bactericidal composition containing zoxamide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103651371A true CN103651371A (en) | 2014-03-26 |
| CN103651371B CN103651371B (en) | 2015-07-08 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1252690A (en) * | 1997-04-18 | 2000-05-10 | 拜尔公司 | Fungicide active substance combinations |
| CN102510721A (en) * | 2009-07-16 | 2012-06-20 | 拜尔农作物科学股份公司 | Synergistic active substance combinations containing phenyl triazoles |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1252690A (en) * | 1997-04-18 | 2000-05-10 | 拜尔公司 | Fungicide active substance combinations |
| CN102510721A (en) * | 2009-07-16 | 2012-06-20 | 拜尔农作物科学股份公司 | Synergistic active substance combinations containing phenyl triazoles |
Non-Patent Citations (2)
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| 张春荣，等: "苯酰菌胺在黄瓜及土壤中的残留动态", 《浙江农业学报》 * |
| 王美娟，等: "丙硫菌唑的合成", 《农药》 * |
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