CN103651371B - High-efficiency bactericidal composition containing zoxamide - Google Patents
High-efficiency bactericidal composition containing zoxamide Download PDFInfo
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- CN103651371B CN103651371B CN201210330652.2A CN201210330652A CN103651371B CN 103651371 B CN103651371 B CN 103651371B CN 201210330652 A CN201210330652 A CN 201210330652A CN 103651371 B CN103651371 B CN 103651371B
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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 a kind of application of efficient bactericidal composite in crop pest containing zoxamide.
Technical background
Zoxamide is that one has efficient protective fungicide; there is long lasting period and good resistance of rainwater washing against performance; its mechanism of action is very unique in Oomycete bactericide, and it suppresses sclerotium to divide by the combination of tubulin-subunit and breaking of microtubule cytoskeleton.Zoxamide do not affect travelling spore in travelling, sporangiocyst formed or sprout.Along with caryocinetic first circulation of bacterium, the elongation of germ tube is suppressed, thus stops disease mattress to penetrate host plant.
The phonetic phenates of second is bupirimate.
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 agricultural chemicals 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 zoxamide and the phonetic phenol of second or its salt, fluorine bacterium azoles, tetraconazole, prothioconazoles mutually composite, there is good synergistic effect within the specific limits, and about the phonetic phenol of zoxamide and second or its salt, fluorine bacterium azoles, tetraconazole, prothioconazoles relevant composite, there is not yet relevant report at home and abroad at present.
Summary of the invention
The object of the invention is to propose a kind of to there is the efficient bactericidal composite containing zoxamide that synergistic function, use cost are low, preventive effect is good.
The present invention is achieved through the following technical solutions:
A kind of efficient bactericidal composite containing zoxamide, containing 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 the one in the phonetic phenol of second or its salt, fluorine bacterium azoles, tetraconazole, prothioconazoles; The weight ratio being preferably active components A and active component B is 1 ︰ 40 ~ 60 ︰ 1; The weight ratio being more preferably zoxamide and the phonetic phenol of 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 zoxamide and the phonetic phenol of 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 makes wetting powder, water dispersible granules, suspending agent, aqueous emulsion, microemulsion, suspension emulsion, microcapsule suspending agent, microcapsule suspension-suspendinagent agent.
The described efficient bactericidal composite containing zoxamide is for preventing and treating the disease of 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, flower crop, medicinal crop, 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.
In bactericidal composition of the present invention, the content of active component depends on amount of application when being used alone, and also depends on mixed ratio and the synergistic effect degree of a kind of compound and another kind of compound, simultaneously also relevant with target disease.In usual composition, the weight percentage of active component is 1% ~ 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% ~ 60%, 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 2% ~ 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 processing method known in those skilled in the art, after mixing with liquid flux or solid carrier by active component, then add surfactant as one or more in dispersant, stabilizing agent, wetting agent, binding agent, antifreeze, disintegrant, defoamer etc.According to different dosage form, can also containing antifreeze known in those skilled in the art etc. in preparation.
Composition comprises following component and content when making wetting powder: active components A 0.5% ~ 80%, active component B 0.5% ~ 60%, dispersant 1% ~ 12%, wetting agent 1% ~ 8%, filler surplus.
Composition comprises following component and content when making water dispersible granules: 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.
Composition comprises following component and content when making suspending agent: 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%.
Composition comprises following component and content when making aqueous emulsion: 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%.
Composition comprises following component and content when making microemulsion: 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%.
Composition comprises following component and content when making suspension emulsion: 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%.
Composition comprises following component and content when making microcapsule suspending agent: 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%.
Composition comprises following component and content when making microcapsule suspension-suspendinagent agent: 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-suspendinagent 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) pesticide usage amount reduces, and reduces the residual quantity of agricultural chemicals on crop, alleviates environmental pollution; (3) fungicidal spectrum is expanded, to multiple diseases 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 have greater activity.
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
By zoxamide, active component B, dispersant, wetting agent, filler mixing, mix in mixed cylinder, mix again after airslide disintegrating mill is pulverized, namely can be made into wetting powder product of the present invention.Specifically in table 1,2.
The each component of table 1 embodiment 16 and content
The each component of table 2 embodiment 7 ~ 12 and content
Embodiment 13 ~ 24 water dispersible granules
Zoxamide, 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 3,4.
The each component of table 3 embodiment 13 ~ 18 and content
The each component of table 4 embodiment 19 ~ 24 and content
Embodiment 25 ~ 36 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 zoxamide, 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 5,6.
The each component of table 5 embodiment 25 ~ 30 and content
The each component of table 6 embodiment 31 ~ 36 and content
Embodiment 37 ~ 45 aqueous emulsion
Zoxamide, 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, obtained aqueous emulsion product of the present invention.Specifically in table 7,8.
The each component of table 7 embodiment 37 ~ 40 and content
The each component of table 8 embodiment 41 ~ 45 and content
Phonetic for second in table 1 ~ 8 phenol or its salt, fluorine bacterium azoles, tetraconazole, prothioconazoles are exchanged, can novel formulation be obtained.
Embodiment 46 ~ 48 microemulsion
Zoxamide, active component B are dissolved in and are equipped with in the homogenizer of solvent, by emulsifier, antifreeze (can add and can not add), defoamer, join above-mentioned solution is housed homogenizer in, surplus deionized water gives strong mixing and homogenize after supplying, finally obtain the microemulsion product of the present invention that clear appearance is transparent.Specifically in table 9.
The each component of table 9 embodiment 46 ~ 48 and content
Embodiment 49 ~ 51 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 zoxamide, ball milling 2 ~ 3 hours in ball mill, make diameter of particle all below 5 μm, obtained zoxamide suspending agent, then by active component B, emulsifier, solvent and the direct emulsification of various auxiliary agent high speed agitators in suspending agent, obtained suspension emulsion product of the present invention.Specifically in table 10.
The each component of table 10 embodiment 49 ~ 51 and content
Embodiment 52 ~ 54 microcapsule suspending agent
By zoxamide, 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, defoamer, 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 11.
The each component of table 11 embodiment 52 ~ 54 and content
Embodiment 55 ~ 57 microcapsule suspension-suspendinagent agent
By active component B, 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 zoxamide, 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, makes the finely disseminated microcapsule suspension-suspendinagent agent product of the present composition.Specifically in table 12.
The each component of table 12 embodiment 55 ~ 57 and content
The embodiment of the present invention is the method adopting 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: 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), and liquor strength (μ g/mL) converts logarithm value to (x), tries to achieve virulence regression equation (y=a+bx), and calculate the EC of often kind of medicament thus with method of least squares
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 zoxamide;
B is selected from the one in the phonetic phenol of second or its salt, fluorine bacterium azoles, tetraconazole, prothioconazoles.
Application Example two:
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 zoxamide and the phonetic phenol of second or its both salt different ratio mixture.
Toxicity test result
Table 13 zoxamide 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 13, zoxamide and the phonetic phenol of second or the composite proportioning of preventing and treating powdery mildew of cucumber of its salt are when 1 ︰ 60 ~ 80 ︰ 1, synergy ratio SR is all greater than 1.5, both explanations mixture in 1 ︰ 60 ~ 80 ︰ 1 scope all shows synergistic effect, the proportioning of zoxamide and the phonetic phenol of second or its salt is 1: 20 ~ 10: 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.20.Testing through applicant the proportioning finding 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 zoxamide and the phonetic phenol of 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 Meibang Pesticide Co., Ltd., experimental scheme: through effective inhibition concentration scope of preliminary experiment determination zoxamide and the former medicine of fluorine bacterium azoles and the two different ratio mixture
Toxicity test result
Table 14 zoxamide and the composite toxicity test analysis of results table to powdery mildew of strawberry of 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, both explanations mixture in 1 ︰ 60 ~ 80 ︰ 1 scope all shows synergistic effect, 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.Testing through applicant the proportioning finding 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 examination disease: downy mildew of garpe, test medicine provides by Shaanxi Meibang Pesticide Co., Ltd., experimental scheme: through effective inhibition concentration scope of preliminary experiment determination zoxamide and the former medicine of tetraconazole and the two different ratio mixture.
Toxicity test result
Table 15 zoxamide and the composite toxicity test analysis of results table to downy mildew of garpe of tetraconazole
As shown in Table 15, zoxamide and the composite proportioning of preventing and treating downy mildew of garpe of tetraconazole are when 1 ︰ 60 ~ 80 ︰ 1, synergy ratio SR is all greater than 1.5, both explanations mixture in 1 ︰ 60 ~ 80 ︰ 1 scope all shows synergistic effect, the proportioning of zoxamide and tetraconazole is 1: 10 ~ 30: 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.30.Testing through applicant the proportioning finding 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 examination disease: wheat powdery mildew, test medicine provides by Shaanxi Meibang Pesticide Co., Ltd., experimental scheme: through effective inhibition concentration scope of preliminary experiment determination zoxamide and the former medicine of prothioconazoles and the two different ratio mixture.
Toxicity test result
Table 16 zoxamide and the composite toxicity test analysis of results table to wheat powdery mildew of prothioconazoles
As shown in Table 16, the proportioning of zoxamide and the composite control wheat powdery mildew of prothioconazoles is when 1 ︰ 60 ~ 80 ︰ 1, synergy ratio SR is all greater than 1.5, both explanations mixture in 1 ︰ 60 ~ 80 ︰ 1 scope all shows synergistic effect, the proportioning of zoxamide and prothioconazoles is 1: 20 ~ 20: 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.20.Testing through applicant the proportioning finding 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: zoxamide and active component B composite after have obvious synergistic effect to 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, synergy ratio is all more than 1.5.
Effect experiment part: test medicine is researched and developed by Shaanxi Meibang Pesticide Co., Ltd., provided, contrast medicament 20% zoxamide suspending agent (autogamy), 25% second phonetic phenol suspending agent (commercial) (50% bupirimate wetting powder (autogamy)), 30% triflumizole wettable powder (commercial), 4% tetraconazole aqueous emulsion (commercial), 20% prothioconazoles suspending agent (autogamy).
Application Example six zoxamide and active component B and compositely prevent and treat the powdery mildew of cucumber test of pesticide effectiveness
This experimental establishment is in Jingyang County, Shaanxi Province, and the investigation powdery mildew of cucumber state of an illness before medicine, in the first time dispenser of state of an illness initial stage, dispenser in every 7 days once, is total to dispenser 2 times.Within after second time dispenser 7 days, 14 days, 30 days, investigate disease index respectively and calculate preventive effect.Experimental result is as follows:
Table 17 zoxamide and active component B and compositely prevent and treat the powdery mildew of cucumber test of pesticide effectiveness
As can be seen from Table 17, zoxamide and active component B and composite after effectively can 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.Have good preventive effect to gray mold of cucumber, downy mildew, scab, damping off, and preventive effect is all higher than 96% simultaneously.
Application Example seven zoxamide and active component B and the composite control wheat powdery mildew test of pesticide effectiveness thereof
This test arrangement is at Shaanxi Province's Weinan City, and the investigation wheat powdery mildew state of an illness before medicine, in the first time dispenser of state of an illness initial stage, dispenser in every 7 days once, is total to dispenser 2 times.Within after second time dispenser 3 days, 7 days, 15 days, investigate disease index respectively and calculate preventive effect.Experimental result is as follows:
Table 18 zoxamide and active component B and composite control wheat powdery mildew thereof are imitated and are tested
As can be seen from Table 18, zoxamide and active component B and composite after effectively can 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, has no adverse effects in test scope of medication to target crop.Have good preventive effect to wheat net blotch, rust, moire disease, and preventive effect is all higher than 96% simultaneously.
Application Example eight zoxamide and active component B and the composite control grape grey mould test of pesticide effectiveness thereof
This test arrangement is at Shaanxi Province's Weinan City, and the investigation grape grey mould state of an illness before medicine, in the first time dispenser of state of an illness initial stage, dispenser in every 7 days once, is total to dispenser 2 times.Within after second time dispenser 7 days, 14 days, 30 days, investigate disease index respectively 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 thereof prevent and treat grape grey mould, and 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.Also have good preventive effect to downy mildew of garpe, and preventive effect is all higher than 96% simultaneously.
Application Example nine zoxamide and active component B and the composite control rice blast test of pesticide effectiveness thereof
This test arrangement is at Shaanxi Province's Hanzhong City, and the investigation rice blast state of an illness before medicine, in the first time dispenser of state of an illness initial stage, dispenser in every 7 days once, is total to dispenser 2 times.Within after second time dispenser 7 days, 14 days, 30 days, investigate disease index respectively 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 effectively can 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.Have good preventive effect to rice green smut, banded sclerotial blight, bakanae disease, and preventive effect is all higher than 96% simultaneously.
Application Example ten zoxamide and active component B and the composite control tomato blight test of pesticide effectiveness thereof
This experimental establishment is in Xi'an City, Shanxi Province, and the investigation tomato blight state of an illness before medicine, in the first time dispenser of state of an illness initial stage, dispenser in every 7 days once, is total to dispenser 2 times.Within after second time dispenser 7 days, 14 days, 30 days, investigate disease index respectively 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 effectively can 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.Also have good preventive effect to tomato seedling damping-off, gray mold, and preventive effect is all higher than 96% simultaneously.
After draw through tests different local throughout the country, zoxamide and the phonetic phenol of second or its salt, fluorine bacterium azoles, tetraconazole, the composite rear preventive effect to 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 shanks of prothioconazoles are 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: effective active composition is active components A and active component B, active components A and active component B weight ratio are 1: 60 ~ 80: 1, and described active components A is zoxamide, and active component B is the phonetic phenol of second or its salt.
2. the efficient bactericidal composite containing zoxamide according to claim 1, is characterized in that: the weight ratio of zoxamide and the phonetic phenol of second or its salt is 1: 40 ~ 60: 1.
3. the efficient bactericidal composite containing zoxamide according to claim 2, is characterized in that:
The weight ratio of zoxamide and the phonetic phenol of second or its salt is 1: 20 ~ 10: 1.
4. the efficient bactericidal composite containing zoxamide according to any one of claims 1 to 3, is characterized in that: composition makes wetting powder, water dispersible granules, suspending agent, aqueous emulsion, microemulsion, suspension emulsion, microcapsule suspending agent, microcapsule suspension-suspendinagent 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 is 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.
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|---|---|---|---|---|
| DE19716257A1 (en) * | 1997-04-18 | 1998-10-22 | Bayer Ag | Fungicidal active ingredient combination |
| JP5642786B2 (en) * | 2009-07-16 | 2014-12-17 | バイエル・クロップサイエンス・アーゲーＢａｙｅｒ Ｃｒｏｐｓｃｉｅｎｃｅ Ａｇ | Synergistic active compound combinations including phenyltriazoles |
-
2012
- 2012-09-07 CN CN201210330652.2A patent/CN103651371B/en not_active Expired - Fee Related
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| CN103651371A (en) | 2014-03-26 |
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