CN104285954A - Efficient fungicidal composition - Google Patents

Efficient fungicidal composition Download PDF

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Publication number
CN104285954A
CN104285954A CN201410512623.7A CN201410512623A CN104285954A CN 104285954 A CN104285954 A CN 104285954A CN 201410512623 A CN201410512623 A CN 201410512623A CN 104285954 A CN104285954 A CN 104285954A
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acid amides
pyrrole bacterium
bacterium acid
fluorine pyrrole
active component
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CN201410512623.7A
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CN104285954B (en
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张伟
赵娇
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Shaanxi Meibang Pharmaceutical Group Co ltd
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Shaanxi Meibang Pesticide Co Ltd
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Abstract

The invention discloses an efficient fungicidal composition. The efficient fungicidal composition comprises an active component A and an active component B, wherein the active component A is selected from fluopyram; the active component B is selected from any one of the following compounds: dithianon, cyprodinil, captan, fosetyl-aluminium, chlorothalonil and bromothalonil; and the weight ratio of the active component A to the active component B is (1 to 80)-(60 to 1). The composition has relatively high activity on a plurality of diseases of a plurality of crops and has an obvious synergism; the bacteriocidal spectrum is expanded; and the composition has the characteristics of low consumption of the fungicidal component, resistance to rain washing and obvious synergism.

Description

A kind of efficient bactericidal composite
The application is divisional application, and original application is the patent application " a kind of efficient bactericidal composite " of Shaanxi Meibang Pesticide Co., Ltd., and the application number Wei ︰ 201210243178.X of original application, original application day is 2012-7-13.
Technical field
The invention belongs to technical field of pesticide, relate to the application of a kind of efficient bactericidal composite in crop pest.
Technical background
Fluorine pyrrole bacterium acid amides (Fluopyram) chemical name: N-{2-[the chloro-5-of 3-(trifluoromethyl)-2-pyridine radicals) ethyl] the fluoro-0-toluamide of-α, α, α-three, molecular formula: C 16h 11clF 6n 2o, it suppresses mitochondrial respiratory by hindering the electro transfer of succinate dehydrogenase in respiratory chain.Reaching the object controlling pathogenic bacteria by suppressing the several stage in the growth of pathogenic bacteria cycle, being mainly used in broad leaf crop being prevented and treated the microbial disease of ascus.
But in the real process of agricultural production, the problem that controlling disease the most easily produces is drug-fast generation.Different cultivars composition carries out composite, is to prevent and treat the very common method of resistance.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 co-toxicity coefficient.Study through inventor, find produce good synergistic effect by after fluorine pyrrole bacterium acid amides and dithianon, cyprodinil, captan, phosethyl-Al, tpn, bromothalonil compounded, and not yet open about the relevant report of fluorine pyrrole bacterium acid amides and dithianon, cyprodinil, captan, phosethyl-Al, tpn, bromothalonil compounded.
Summary of the invention
The object of the invention is to propose a kind of to there is synergistic function, use cost is low, preventive effect is good efficient bactericidal composite.
The efficient bactericidal composite that the present invention proposes contains active components A and active component B, active components A and active component B weight ratio are 1 ︰ 80 ~ 60 ︰ 1, described active components A is selected from fluorine pyrrole bacterium acid amides, and active component B is selected from the one in dithianon, cyprodinil, captan, phosethyl-Al, tpn, bromothalonil.Active components A and active component B preferably weight ratio are 1 ︰ 60 ~ 40 ︰ 1; The weight ratio being more preferably fluorine pyrrole bacterium acid amides and dithianon is 1 ︰ 25 ~ 15 ︰ 1, the weight ratio of fluorine pyrrole bacterium acid amides and cyprodinil is 1 ︰ 30 ~ 10 ︰ 1, the weight ratio of fluorine pyrrole bacterium acid amides and captan is 1 ︰ 30 ~ 5 ︰ 1, the weight ratio of fluorine pyrrole bacterium acid amides and phosethyl-Al is 1 ︰ 40 ~ 1 ︰ 1, the weight ratio of fluorine pyrrole bacterium acid amides and tpn is 1 ︰ 30 ~ 5 ︰ 1, and the weight ratio of fluorine pyrrole bacterium acid amides and bromothalonil is 1 ︰ 30 ~ 15 ︰ 1; The weight ratio most preferably being fluorine pyrrole bacterium acid amides and dithianon is 1 ︰ 15 ~ 5 ︰ 1, the weight ratio of fluorine pyrrole bacterium acid amides and cyprodinil is 1 ︰ 20 ~ 1 ︰ 1, the weight ratio of fluorine pyrrole bacterium acid amides and captan is 1 ︰ 20 ~ 1 ︰ 5, the weight ratio of fluorine pyrrole bacterium acid amides and phosethyl-Al is 1 ︰ 30 ~ 1 ︰ 10, the weight ratio of fluorine pyrrole bacterium acid amides and tpn is 1 ︰ 20 ~ 1 ︰ 5, and the weight ratio of fluorine pyrrole bacterium acid amides and bromothalonil is 1 ︰ 10 ~ 5 ︰ 1;
The efficient bactericidal composite that the present invention proposes is for preventing and treating the purposes of disease on crops, and described crops comprise cereal crops, legume crop, fiber crop, sugar [yielding, melon crop, fruits crop, dry fruit crop, hobby crop, root crop, oil crop, flower crop, medicinal crop, crop, green manure pasture crop; Described disease comprises powdery mildew, downy mildew, epidemic disease, rust, anthracnose, gray mold, scab, net blotch, glume blight, leaf mold, ring spot, rice blast, banded sclerotial blight, shot hole, leaf spot, spot defoliation, anthrachose of grape.
In the present composition, the content of active component depends on amount of application when being used alone, also depend on the mixed ratio of a kind of compound and another kind of compound with or its synergistic effect degree, 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.
Surfactant selected by 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, stabilizing agent known in those skilled in the art, antifreeze etc. can also be contained.
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, then adds surfactant as one or more in dispersant, stabilizing agent, wetting agent, binding agent, defoamer etc. by active component with liquid flux or solid carrier.
Bactericidal composition of the present invention, can be processed into acceptable formulation on any agricultural chemicals on demand, and wherein preferred dosage form is wetting powder, water dispersible granules, suspending agent, suspension emulsion, aqueous emulsion, microemulsion, microcapsule suspending agent, microcapsule suspension-suspendinagent agent.
Composition comprises following component or its content when making wetting powder: active components A 1% ~ 60%, active component B1% ~ 80%, dispersant 2% ~ 10%, wetting agent 2% ~ 10%, filler surplus.
Composition comprises following component or its content when making water dispersible granules: active components A 1% ~ 60%, active component B1% ~ 80%, dispersant 3% ~ 12%, wetting agent 1% ~ 8%, disintegrant 1% ~ 10%, binding agent 0 ~ 8%, filler surplus.
Composition comprises following component or its content when making suspending agent: active components A 0.5% ~ 50%, active component B0.5% ~ 50%, dispersant 2% ~ 10%, wetting agent 2% ~ 10%, defoamer 0.01% ~ 2%, thickener 0 ~ 2%, antifreeze 0 ~ 8%, deionized water add to 100%.
Composition comprises following component or its content when making suspension emulsion: active components A 0.5% ~ 50%, active component B0.5% ~ 50%, emulsifier 2% ~ 12%, dispersant 2% ~ 10%, solvent 1% ~ 15%, defoamer 0.01% ~ 2%, thickener 0 ~ 2%, antifreeze 0 ~ 8%, deionized water add to 100%.
Composition comprises following component or its content when making aqueous emulsion: active components A 0.5% ~ 50%, active component B0.5% ~ 50%, solvent 1% ~ 30%, emulsifier 1% ~ 15%, antifreeze 0 ~ 8%, defoamer 0.01% ~ 2%, thickener 0 ~ 2%, deionized water add to 100%.
Composition comprises following component or its content when making microemulsion: active components A 0.5% ~ 50%, active component B0.5% ~ 50%, emulsifier 3% ~ 25%, solvent 1% ~ 30%, antifreeze 0 ~ 8%, defoamer 0.01% ~ 2%, deionized water add to 100%.
Composition comprises following component or its content when making microcapsule suspending agent: active components A 0.5% ~ 50%, active component B0.5% ~ 50%, macromolecule cyst material 2% ~ 10%, dispersant 1% ~ 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 or its content when making microcapsule suspension-suspendinagent agent: active components A 0.5% ~ 50%, active component B0.5% ~ 50%, macromolecule cyst material 2% ~ 10%, dispersant 1% ~ 12%, wetting agent 1% ~ 8%, organic solvent 1% ~ 15%, emulsifier 1% ~ 6%, defoamer 0.01% ~ 2%, thickener 0 ~ 2%, pH adjusting agent 0.01% ~ 5%, deionized water add to 100%.
Wetting powder the key technical indexes of the present invention:
Water dispersible granules the key technical indexes of the present invention:
Suspending agent the key technical indexes of the present invention:
Suspension emulsion the key technical indexes of the present invention:
Aqueous emulsion the key technical indexes of the present invention:
Microemulsion the key technical indexes of the present invention:
Microcapsule suspending agent the key technical indexes of the present invention:
Microcapsule suspension-suspendinagent agent the key technical indexes of the present invention:
The invention has the advantages that:
(1) 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, downy mildew, epidemic disease, rust, anthracnose, gray mold, scab, net blotch, glume blight, leaf mold, ring spot, rice blast, banded sclerotial blight, shot hole, leaf spot, spot defoliation, anthrachose of grape 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:
Example 1 ~ 14 wetting powder
By fluorine pyrrole bacterium acid amides, 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.
The each component of table 1 example 1 ~ 14 or its content
Example 15 ~ 28 water dispersible granules
Fluorine pyrrole bacterium acid amides, active component B, dispersant, wetting agent, binding agent (can add and can not add), disintegrant, filler are obtained together the particle diameter of needs through air-flow crushing, obtain granulation materials.Item is quantitatively sent in fluidized bed granulating dryer through granulating or after its drying, obtaining water dispersible granules product of the present invention.Specifically in table 2.
The each component of table 2 example 15 ~ 28 or its content
Example 29 ~ 42 suspending agent
Dispersant, wetting agent, defoamer, thickener (can add and can not add), antifreeze (can add and can not add) are mixed through high speed shear, add fluorine pyrrole bacterium acid amides, active component B, surplus deionized water is supplied, ball milling 2 ~ 3 hours in ball mill, make diameter of particle all below 5 μm, obtained suspending agent product of the present invention.Specifically in table 3.
The each component of table 3 example 29 ~ 42 or its content
Example 43 ~ 54 suspension emulsion
By dispersant, defoamer, thickener (can add and can not add), antifreeze (can add and can not add) in above-mentioned formulation material, mix through high speed shear, add fluorine pyrrole bacterium acid amides, ball milling 2 ~ 3 hours in ball mill, make diameter of particle all below 5 μm, obtained fluorine pyrrole bacterium amide suspending agents, then by active component B, solvent, emulsifier or the direct emulsification of its various auxiliary agent high speed agitators in suspending agent, obtained suspension emulsion product of the present invention, specifically in table 4,5,6.
The each component of table 4 example 43 ~ 46 or its content
The each component of table 5 example 47 ~ 50 or its content
The each component of table 6 example 51 ~ 54 or its content
Example 55 ~ 61 aqueous emulsion
Fluorine pyrrole bacterium acid amides, 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.
The each component of table 7 example 55 ~ 61 or its content
Active component B dithianon, cyprodinil, captan, phosethyl-Al, tpn, bromothalonil in table 1 ~ 7 are exchanged, can novel formulation be obtained.
Example 62 ~ 64 microemulsion
Fluorine pyrrole bacterium acid amides, active component B are dissolved in and are equipped with in the homogenizer of solvent, emulsifier, antifreeze (can add and can not add), defoamer are joined in the homogenizer that above-mentioned solution is housed, 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 8.
The each component of table 8 example 62 ~ 64 or its content
Example 65,66 microcapsule suspending agent
By fluorine pyrrole bacterium acid amides, 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 9.
Table 9 example 65,66 each component or its content
Example 67,68 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 fluorine pyrrole bacterium acid amides, 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 10.
Table 10 example 67,68 each component or its content
The embodiment of the present invention is the method adopting Toxicity Determination and field trial to combine.First pass through Toxicity Determination, synergy ratio (SR) after clear and definite two kinds of medicaments are composite by a certain percentage, SR < 0.5 is antagonism, 0.5≤SR≤1.5 are summation action, SR > 1.5 is synergistic effect, on this basis, then carry out field trial.
Test method: determine that after the effective inhibition concentration scope of each medicament, medicament establishes 5 dosage process respectively by active constituent content through prerun, if clear water contrast.Carry out with reference to " farm-chemical indoor determination test rule bactericide ", adopt mycelial growth rate method to measure medicament to the virulence of crop germ.Measure colony diameter by right-angled intersection method after 72h, calculate each process net growth, mycelial growth inhibition rate.
Net growth (mm)=measurement colony diameter-5
Mycelial growth inhibition rate is converted into probit value (y), liquor strength (μ g/mL) converts logarithm value (x) to, try to achieve virulence regression equation (y=a+bx) with method of least squares, and calculate the EC of often kind of medicament thus 50value.Calculate two medicament different ratio synergies ratio (SR) according to Wadley method, SR < 0.5 is antagonism, and 0.5≤SR≤1.5 are summation action simultaneously, and SR > 1.5 is synergistic effect.Computing formula is as follows:
Wherein: a, b are respectively active components A and the ratio of active component B shared by combination;
A is fluorine pyrrole bacterium acid amides;
B is selected from the one in dithianon, cyprodinil, captan, phosethyl-Al, tpn, bromothalonil.
Application Example two:
For examination disease: cucumber downy mildew; Test medicine provides by Shaanxi Meibang Pesticide Co., Ltd..Experimental scheme: through effective inhibition concentration scope of preliminary experiment determination fluorine pyrrole bacterium acid amides and the former medicine of dithianon or different ratio mixture both it.
Table 11 fluorine pyrrole bacterium acid amides and the composite toxicity test analysis of results table to cucumber downy mildew of dithianon
As shown in Table 11, fluorine pyrrole bacterium acid amides and dithianon proportioning are all greater than 1.5 when 1 ︰ 80 ~ 60 ︰ 1 to the synergy ratio SR of cucumber downy mildew, both explanations mixture in 1 ︰ 80 ~ 60 ︰ 1 scope all shows synergistic effect, when the proportioning of fluorine pyrrole bacterium acid amides and dithianon is at 1 ︰ 25 ~ 15 ︰ 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.30.Testing through applicant the optimum ratio finding fluorine pyrrole bacterium acid amides and dithianon is 15:1,10:1,8:1,5:1,4:1,3:1,2:1,1:1,1:2,1:3,1:4,1:5,1:6,1:7,1:8,1:10,1:12,1:15,1:20,1:25, especially when fluorine pyrrole bacterium acid amides and dithianon weight ratio are 1:4, synergy ratio is maximum, and synergistic effect is the most obvious.
Application Example three:
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 fluorine pyrrole bacterium acid amides and the former medicine of cyprodinil or different ratio mixture both it.
Toxicity test result
Table 12 fluorine pyrrole bacterium acid amides and the composite toxicity test analysis of results table to wheat powdery mildew of cyprodinil
As shown in Table 12, fluorine pyrrole bacterium acid amides and cyprodinil proportioning are all greater than 1.5 when 1 ︰ 80 ~ 60 ︰ 1 to the synergy ratio SR of wheat powdery mildew, both explanations mixture in 1 ︰ 80 ~ 60 ︰ 1 scope all shows synergistic effect, when the proportioning of fluorine pyrrole bacterium acid amides and cyprodinil is at 1 ︰ 30 ~ 10 ︰ 1, synergistic effect is more obviously given prominence to, and synergy ratio is all more than 2.20.Testing through applicant the optimum ratio finding fluorine pyrrole bacterium acid amides and cyprodinil is 10:1,8:1,6:1,3:1,1:1,1:2,1:3,1:4,1:5,1:6,1:7,1:8,1:9,1:10,1:11,1:12,1:13,1:14,1:15,1:16,1:17,1:18,1:20,1:25,1:30, especially when fluorine pyrrole bacterium acid amides and cyprodinil weight ratio are 1:9, synergy ratio is maximum, and synergistic effect is the most obvious.
Application Example four:
For examination disease: tomato blight; Test medicine provides by Shaanxi Meibang Pesticide Co., Ltd..Experimental scheme: through effective inhibition concentration scope of preliminary experiment determination fluorine pyrrole bacterium acid amides and the former medicine of captan or different ratio mixture both it.
Toxicity test result
Table 13 fluorine pyrrole bacterium acid amides and the composite toxicity test analysis of results table to tomato blight of captan
As shown in Table 13, fluorine pyrrole bacterium acid amides and captan proportioning are all greater than 1.5 when 1 ︰ 80 ~ 60 ︰ 1 to the synergy ratio SR of tomato blight, both explanations mixture in 1 ︰ 80 ~ 60 ︰ 1 scope all shows synergistic effect, when the proportioning of fluorine pyrrole bacterium acid amides and captan is at 1 ︰ 30 ~ 5 ︰ 1, synergistic effect is more obviously given prominence to, and synergy ratio is all more than 2.25.Testing through applicant the optimum ratio finding fluorine pyrrole bacterium acid amides and captan is 5:1,1:1,1:3,1:5,1:6,1:7,1:8,1:9,1:10,1:11,1:12,1:13,1:14,1:15,1:16,1:17,1:18,1:19,1:20,1:25,1:30, especially when fluorine pyrrole bacterium acid amides and captan weight ratio are 1:14, synergy ratio is maximum, and synergistic effect is the most obvious.
Application Example five:
For examination disease: cucumber downy mildew; Test medicine provides by Shaanxi Meibang Pesticide Co., Ltd..Experimental scheme: through effective inhibition concentration scope of preliminary experiment determination fluorine pyrrole bacterium acid amides and technical-grade fosetyl-aluminum or different ratio mixture both it.
Toxicity test result
Table 14 fluorine pyrrole bacterium acid amides and the composite toxicity test analysis of results table to cucumber downy mildew of phosethyl-Al
As shown in Table 14, fluorine pyrrole bacterium acid amides and phosethyl-Al proportioning are all greater than 1.5 when 1 ︰ 80 ~ 60 ︰ 1 to the synergy ratio SR of cucumber downy mildew, both explanations mixture in 1 ︰ 80 ~ 60 ︰ 1 scope all shows synergistic effect, when the proportioning of fluorine pyrrole bacterium acid amides and phosethyl-Al is at 1 ︰ 40 ~ 1 ︰ 1, synergistic effect is more obviously given prominence to, and synergy ratio is all more than 2.20.Testing through applicant the optimum ratio finding fluorine pyrrole bacterium acid amides and phosethyl-Al is 1:1,1:5,1:10,1:12,1:14,1:16,1:17,1:18,1:19,1:20,1:21,1:22,1:23,1:24,1:25,1:26,1:28,1:30,1:35,1:40, especially when fluorine pyrrole bacterium acid amides and phosethyl-Al weight ratio are 1:19, synergy ratio is maximum, and synergistic effect is the most obvious.
Application Example six:
For examination disease: tomato blight; Test medicine provides by Shaanxi Meibang Pesticide Co., Ltd..Experimental scheme: through effective inhibition concentration scope of preliminary experiment determination fluorine pyrrole bacterium acid amides and the former medicine of tpn or different ratio mixture both it.
Toxicity test result
Table 15 fluorine pyrrole bacterium acid amides and chlorothalonil compound are to the toxicity test analysis of results table of tomato blight
As shown in Table 15, fluorine pyrrole bacterium acid amides and tpn proportioning are all greater than 1.5 when 1 ︰ 80 ~ 60 ︰ 1 to the synergy ratio SR of tomato blight, both explanations mixture in 1 ︰ 80 ~ 60 ︰ 1 scope all shows synergistic effect, when the proportioning of fluorine pyrrole bacterium acid amides and tpn is at 1 ︰ 30 ~ 5 ︰ 1, synergistic effect is more obviously given prominence to, and synergy ratio is all more than 2.25.Testing through applicant the optimum ratio finding fluorine pyrrole bacterium acid amides and tpn is 5:1,1:1,1:2,1:5,1:8,1:9,1:10,1:11,1:12,1:13,1:14,1:15,1:16,1:17,1:18,1:19,1:20,1:22,1:25,1:28,1:30, especially when fluorine pyrrole bacterium acid amides and tpn weight ratio are 1:14, synergy ratio is maximum, and synergistic effect is the most obvious.
Application Example seven:
For examination disease: mandarin tree anthracnose; Test medicine provides by Shaanxi Meibang Pesticide Co., Ltd..Experimental scheme: through effective inhibition concentration scope of preliminary experiment determination fluorine pyrrole bacterium acid amides and the former medicine of bromothalonil or different ratio mixture both it.
Toxicity test result
Table 16 fluorine pyrrole bacterium acid amides and bromothalonil compounded are to the toxicity test analysis of results table of mandarin tree anthracnose
As shown in Table 16, fluorine pyrrole bacterium acid amides and bromothalonil proportioning are all greater than 1.5 when 1 ︰ 80 ~ 60 ︰ 1 to the synergy ratio SR of mandarin tree anthracnose, both explanations mixture in 1 ︰ 80 ~ 60 ︰ 1 scope all shows synergistic effect, when the proportioning of fluorine pyrrole bacterium acid amides and bromothalonil is at 1 ︰ 30 ~ 15 ︰ 1, synergistic effect is more obviously given prominence to, and synergy ratio is all more than 2.20.Testing through applicant the optimum ratio finding fluorine pyrrole bacterium acid amides and bromothalonil is 15:1,10:1,8:1,5:1,4:1,3:1,2:1,1:1,1:2,1:3,1:4,1:5,1:6,1:7,1:8,1:9,1:10,1:15,1:20,1:25,1:30, especially when fluorine pyrrole bacterium acid amides and bromothalonil weight ratio are 1:2, synergy ratio is maximum, and synergistic effect is the most obvious.
Through test find: fluorine pyrrole bacterium acid amides and active component B composite after have obvious synergistic effect to the control of powdery mildew, downy mildew, epidemic disease, rust, anthracnose, gray mold, scab, net blotch, glume blight, leaf mold, ring spot, rice blast, banded sclerotial blight, shot hole, leaf spot, spot defoliation, anthrachose of grape, synergy ratio is all more than 1.50.
Test of pesticide effectiveness part
Test medicine is researched and developed by Shaanxi Meibang Pesticide Co., Ltd., is provided.Contrast medicament: 40% fluorine pyrrole bacterium amide suspending agents (autogamy), 75% dithianon wetting powder (autogamy), 50% cyprodinil water dispersible granule (autogamy), 50% captan wetting powder (commercial), 40% phosethyl-Al wetting powder (commercial), 75% tpn wetting powder (commercial), 25% bromothalonil wetting powder (commercial).
Application Example octafluoro pyrrole bacterium acid amides and active component B and the composite control tomato blight test of pesticide effectiveness thereof
This test arrangement is in suburb, Pucheng County, Shaanxi 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 10 days, 20 days, 45 days, investigate disease index respectively and calculate preventive effect.Experimental result is as follows:
Table 17 fluorine pyrrole bacterium acid amides and active component B and the composite control tomato blight test of pesticide effectiveness thereof
As can be seen from Table 17, fluorine pyrrole bacterium acid amides and active component B 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.
Application Example nine fluorine pyrrole bacterium acid amides and active component B and compositely prevent and treat the powdery mildew of cucumber test of pesticide effectiveness
This test arrangement is at Xian District, Shanxi Province suburban area, and 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 15 days, 30 days, 45 days, investigate disease index respectively and calculate preventive effect.Experimental result is as follows:
Table 18 fluorine pyrrole bacterium acid amides and active component B and compositely prevent and treat the powdery mildew of cucumber test of pesticide effectiveness
As can be seen from Table 18, fluorine pyrrole bacterium acid amides and active component B 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.
Application Example ten fluorine pyrrole bacterium acid amides and active component B and compositely prevent and treat the wheat rust test of pesticide effectiveness
This test arrangement is in Weinan City Dengcheng County, Shaanxi Province, and the investigation wheat rust 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 3 times.Within after third time dispenser 7 days, 14 days, 30 days, investigate disease index respectively and calculate preventive effect.Experimental result is as follows:
Table 19 fluorine pyrrole bacterium acid amides and active component B and compositely prevent and treat the wheat rust test of pesticide effectiveness
As can be seen from Table 19, fluorine pyrrole bacterium acid amides and active component B composite after effectively can prevent and treat wheat rust, 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 fluorine pyrrole bacterium acid amides and active component B and the composite control rice blast test of pesticide effectiveness thereof
This test arrangement is in Hanzhong City suburb, Shaanxi Province, 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 10 days, 20 days, 45 days, investigate disease index respectively and calculate preventive effect.Experimental result is as follows:
Table 20 fluorine pyrrole bacterium acid amides and active component B and the composite control rice blast test of pesticide effectiveness thereof
As can be seen from Table 20, fluorine pyrrole bacterium acid amides and active component B 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.
Application Example ten difluoro pyrrole bacterium acid amides and active component B and compositely prevent and treat the downy mildew of garpe test of pesticide effectiveness
This test arrangement is in Weinan City Dali County, Shaanxi Province, and the investigation downy mildew of garpe 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 fluorine pyrrole bacterium acid amides and active component B and compositely prevent and treat the downy mildew of garpe test of pesticide effectiveness
As can be seen from Table 21, fluorine pyrrole bacterium acid amides and active component B composite after effectively can 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 ten trifluoro pyrrole bacterium acid amides and active component B and the composite control pear scab test of pesticide effectiveness thereof
This test arrangement is at Xianyang, Shanxi province suburban area, and the investigation pear scab 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 10 days, 20 days, 45 days, investigate disease index respectively and calculate preventive effect.Experimental result is as follows:
Table 22 fluorine pyrrole bacterium acid amides and active component B and the composite control pear scab test of pesticide effectiveness thereof
As can be seen from Table 22, fluorine pyrrole bacterium acid amides and active component B composite after effectively can prevent and treat pear scab, 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 draw through tests different local throughout the country, the preventive effect of the Common Diseases such as powdery mildew, downy mildew, epidemic disease, rust, anthracnose, gray mold, scab, net blotch, glume blight, leaf mold, ring spot, rice blast, banded sclerotial blight, shot hole, leaf spot, spot defoliation, anthrachose of grape effectively can be prevented and treated all more than 95% after fluorine pyrrole bacterium acid amides and dithianon, cyprodinil, captan, phosethyl-Al, tpn, bromothalonil compounded, be better than single dose preventive effect, synergistic effect is obvious.

Claims (6)

1. an efficient bactericidal composite, 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 ︰ 80 ~ 60 ︰ 1, and described active components A is selected from fluorine pyrrole bacterium acid amides, and active component B is selected from bromothalonil.
2. efficient bactericidal composite according to claim 1, is characterized in that: the weight ratio of fluorine pyrrole bacterium acid amides and bromothalonil is 1 ︰ 60 ~ 40 ︰ 1.
3. efficient bactericidal composite according to claim 2, is characterized in that: the weight ratio of fluorine pyrrole bacterium acid amides and bromothalonil is 1 ︰ 30 ~ 15 ︰ 1.
4. the efficient bactericidal composite according to any one of claims 1 to 3, is characterized in that: composition makes wetting powder, water dispersible granules, suspending agent, suspension emulsion, aqueous emulsion, microemulsion, microcapsule suspending agent, microcapsule suspension-suspendinagent agent.
5. efficient bactericidal composite according to claim 4 is for preventing and treating the application of corps diseases.
6. application according to claim 5, is characterized in that: described disease is powdery mildew, downy mildew, epidemic disease, rust, anthracnose, gray mold, scab, net blotch, glume blight, leaf mold, ring spot, rice blast, banded sclerotial blight, shot hole, leaf spot, spot defoliation, anthrachose of grape.
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