CN105309492A - Bactericidal composition containing polygonum cuspidatum extract - Google Patents
Bactericidal composition containing polygonum cuspidatum extract Download PDFInfo
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- CN105309492A CN105309492A CN201410317070.XA CN201410317070A CN105309492A CN 105309492 A CN105309492 A CN 105309492A CN 201410317070 A CN201410317070 A CN 201410317070A CN 105309492 A CN105309492 A CN 105309492A
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Abstract
The invention discloses a bactericidal composition containing a polygonum cuspidatum extract. The bactericidal composition includes an active component A and an active component B, wherein the active component A is the polygonum cuspidatum extract, and the active component B is selected from any one of the following compounds: zhongshengmycin and pyrimidine nucleoside-type antibiotics. The weight ratio of the active component A to the active component B is 1:80-80:1. The composition has high activity on various diseases on various crops and also has a significant synergistic effect and enlarges bactericidal spectrum, and is less in use amount, can bear rain water washing and is significant in synergism.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of application of bactericidal composition in crop pest containing Gentrin Knotweed P.E.
Technical background
Gentrin Knotweed P.E is the traditional Chinese medicine of China, and " agricultural chemicals " magazine the 7th phase in 2007 reports Gentrin Knotweed P.E and chorista to the action effect of powdery mildew of cucumber, is a kind of botanical pesticide, has obvious preventive and therapeutic action to plurality of plant diseases.
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 Gentrin Knotweed P.E and Zhongshengmycin, antibiotic in pyrimidine nucleoside class mutually composite, there is good synergistic effect within the specific limits, and about Gentrin Knotweed P.E and Zhongshengmycin, antibiotic in pyrimidine nucleoside class relevant composite, there is not yet relevant report at home and abroad at present.
Antibiotic in pyrimidine nucleoside class also claims pesticide corrosion 120.
Summary of the invention
The object of the invention is to propose a kind of to there is the bactericidal composition containing Gentrin Knotweed P.E that synergistic function, use cost are low, preventive effect is good.
The present invention is achieved through the following technical solutions:
A kind of bactericidal composition containing Gentrin Knotweed P.E, it is characterized in that containing active components A and active component B, active components A and active component B weight ratio are 1 ︰ 80 ~ 80 ︰ 1, described active components A is selected from Gentrin Knotweed P.E, and active component B is selected from the one in Zhongshengmycin, antibiotic in pyrimidine nucleoside class, procymidone.The preferred weight ratio of active components A and active component B is 1 ︰ 60 ~ 60 ︰ 1; The weight ratio being more preferably Gentrin Knotweed P.E and Zhongshengmycin is 1 ︰ 20 ~ 10 ︰ 1, and the weight ratio of Gentrin Knotweed P.E and antibiotic in pyrimidine nucleoside class is 1 ︰ 20 ~ 20 ︰ 1; The weight ratio most preferably being Gentrin Knotweed P.E and Zhongshengmycin is 1 ︰ 8 ~ 4 ︰ 1, and the weight ratio of Gentrin Knotweed P.E and antibiotic in pyrimidine nucleoside class is 1 ︰ 10 ~ 10 ︰ 1.
The described bactericidal composition containing Gentrin Knotweed P.E is for preventing and treating the application of the disease of crop, and 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.
The described bactericidal composition containing Gentrin Knotweed P.E is for preventing and treating the application of the disease of crop, and described disease comprises gray mold, powdery mildew, downy mildew, late blight, early blight, damping off, bunt, stalk break, rust, crown rot, fusarium wilt, banded sclerotial blight, black spot, rust, anthracnose, bakanae disease, brown spot, root rot, ring spot, scab.
In the present composition, 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.
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.Wherein preferred dosage form is wetting powder, water dispersible granules, suspending agent, microemulsion, aqueous emulsion, microcapsule suspending agent, aqua, can also make soluble powder, microcapsule suspension-suspendinagent agent, suspension emulsion.
Composition comprises following component and content when making wetting powder: active components A 0.5% ~ 60%, active component B0.5% ~ 80%, 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% ~ 60%, active component B0.5% ~ 80%, 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 1% ~ 50%, active component B0.5% ~ 50%, dispersant 0.5% ~ 10%, wetting agent 1% ~ 10%, defoamer 0.01% ~ 2%, thickener 0 ~ 2%, antifreeze 0 ~ 8%, deionized water add to 100%.
Composition comprises following constituent content when making aqua: active components A 0.001% ~ 50%, active component B0.001% ~ 50%, cosolvent 2% ~ 6%, wetting agent 1%-10%, antifreeze 0 ~ 8%, deionized water add to 100%.
Composition comprises following component and content when making suspension emulsion: active components A 1% ~ 50%, active component B0.5% ~ 50%, emulsifier 0.5% ~ 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 microemulsion: active components A 0.5% ~ 50%, active component B0.5% ~ 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 aqueous emulsion: active components A 1% ~ 50%, active component B0.5% ~ 50%, solvent 0.5% ~ 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 microcapsule suspending agent: active components A 0.5% ~ 50%, active component B0.5% ~ 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 B0.5% ~ 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:
Aqua the key technical indexes of the present invention:
Suspension emulsion the key technical indexes of the present invention:
Microemulsion the key technical indexes of the present invention:
Aqueous 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 gray mold, powdery mildew, downy mildew, late blight, early blight, damping off, bunt, stalk break, rust, crown rot, fusarium wilt, banded sclerotial blight, black spot, rust, anthracnose, bakanae disease, brown spot, root rot, ring spot, scab 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 ~ 8 wetting powder
By Gentrin Knotweed P.E, 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 embodiment 1 ~ 8 and content
Embodiment 9 ~ 14 water dispersible granules
Gentrin Knotweed P.E, active component B, dispersant, wetting agent, disintegrant, filler 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, obtaining water dispersible granules product of the present invention.Specifically in table 2.
The each component of table 2 embodiment 9 ~ 14 and content
Embodiment 15 ~ 20 suspending agent
Dispersant, wetting agent, thickener (can add and can not add), defoamer, antifreeze (can add and can not add) are mixed through high speed shear, add Gentrin Knotweed P.E, active component B, surplus is supplied by deionized water, 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 embodiment 17 ~ 20 and content
Example 21 ~ 26 aqua
Gentrin Knotweed P.E, active component B, wetting agent, antifreeze, solvent, deionized water etc. are mixed together, the aqua product of the obtained present composition, specifically in table 4.
The each component of table 4 example 21 ~ 26 and content
Embodiment 27 ~ 32 aqueous emulsion
Gentrin Knotweed P.E, 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 5.
The each component of table 5 embodiment 25 ~ 32 and content
Zhongshengmycin in table 1-4 and antibiotic in pyrimidine nucleoside class are exchanged, new preparation can be obtained.Embodiment 33 ~ 35 microcapsule suspending agent
By Gentrin Knotweed P.E, 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 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 6.
The each component of table 6 embodiment 33 ~ 36 and 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 Gentrin Knotweed P.E;
B choosing is to the one in Zhongshengmycin, antibiotic in pyrimidine nucleoside class.
Application Example two:
For examination disease: ring rot of apple; Test medicine: provide by Shaanxi Meibang Pesticide Co., Ltd.; Experimental scheme: through effective inhibition concentration scope of preliminary experiment determination Gentrin Knotweed P.E and zhongshengmycin bulk drug and the two different ratio mixture.
Toxicity test result
The toxicity test analysis of results table of table 7 Gentrin Knotweed P.E and the composite ring rot of apple of Zhongshengmycin
As shown in Table 7, Gentrin Knotweed P.E and the composite proportioning of preventing and treating ring rot of apple of Zhongshengmycin are when 1 ︰ 80 ~ 80 ︰ 1, synergy ratio SR is all greater than 1.5, both explanations mixture in 1 ︰ 80 ~ 60 ︰ 1 scope all shows synergistic effect, when the proportioning of Gentrin Knotweed P.E and Zhongshengmycin is at 1 ︰ 20 ~ 10 ︰ 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.30.Testing through applicant the optimum ratio finding Gentrin Knotweed P.E and Zhongshengmycin is 10:1,5:1,1:1,1:2,1:3,1:4,1:5,1:6,1:7,1:8,1:9,1:10,1:15,1:20, especially when Gentrin Knotweed P.E and Zhongshengmycin 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 cucumber; Test medicine: provide by Shaanxi Meibang Pesticide Co., Ltd.; Experimental scheme: through effective inhibition concentration scope of preliminary experiment determination Gentrin Knotweed P.E and the former medicine of pesticide corrosion 120 and the two different ratio mixture.
Toxicity test result
Table 8 Gentrin Knotweed P.E and the composite toxicity test analysis of results table to powdery mildew of cucumber of pesticide corrosion 120
As shown in Table 8, Gentrin Knotweed P.E and the composite proportioning of preventing and treating powdery mildew of cucumber of pesticide corrosion 120 are when 1 ︰ 80 ~ 80 ︰ 1, synergy ratio SR is all greater than 1.5, both explanations mixture in 1 ︰ 80 ~ 60 ︰ 1 scope all shows synergistic effect, when the proportioning of Gentrin Knotweed P.E and pesticide corrosion 120 is at 1 ︰ 20 ~ 20 ︰ 1, synergistic effect is more outstanding, and synergy ratio is all more than 2.10.Testing through applicant the optimum ratio finding Gentrin Knotweed P.E and pesticide corrosion 120 is 20:1,15:1,10:1,5:1,4:1,3:1,2:1,1:1,1:2,1:3,1:4,1:5,1:6,1:7,1:8,1:9,1:10,1:15,1:20, especially when Gentrin Knotweed P.E and pesticide corrosion 120 weight ratio are 1:1, synergy ratio is maximum, and synergistic effect is the most obvious.
Application Example four Gentrin Knotweed P.E and active component B and compositely prevent and treat the powdery mildew of cucumber test of pesticide effectiveness
This test arrangement is in Weinan City Dali County, Shaanxi Province, test medicine is researched and developed by Shaanxi Meibang Pesticide Co., Ltd., is provided, contrast medicament 10% Gentrin Knotweed P.E wetting powder (autogamy), 3% Zhongshengmycin wetting powder (commercial), 6% antibiotic in pyrimidine nucleoside class aqua (commercial).
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 last dispenser 7 days, 14 days, 30 days, investigate disease index respectively and calculate preventive effect.Experimental result is as follows:
Table 9 Gentrin Knotweed P.E and active component B and compositely prevent and treat the powdery mildew of cucumber test of pesticide effectiveness
As can be seen from Table 9, Gentrin Knotweed P.E 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 five Gentrin Knotweed P.E and active component B and compositely prevent and treat the apple mildew test of pesticide effectiveness
This test arrangement is in Xianyang, Shanxi province city, test medicine is researched and developed by Shaanxi Meibang Pesticide Co., Ltd., is provided, contrast medicament 10% Gentrin Knotweed P.E wetting powder (autogamy), 3% Zhongshengmycin wetting powder (commercial), 6% antibiotic in pyrimidine nucleoside class aqua (commercial).
The investigation apple 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 last dispenser 7 days, 14 days, 30 days, investigate disease index respectively and calculate preventive effect.Experimental result is as follows:
Table 10 Gentrin Knotweed P.E and active component B and compositely prevent and treat the apple mildew test of pesticide effectiveness
As can be seen from Table 10, Gentrin Knotweed P.E and active component B composite after effectively can prevent and treat apple mildew, control efficiency is all better than the preventive effect of single dose, and the preventive effect phase is long, and can treat ring rot of apple, and after 14 days, control efficiency is up to more than 97%.In test scope of medication, target crop is had no adverse effects.
Application Example six Gentrin Knotweed P.E and active component B and the composite control Chinese cabbage downy mildew test of pesticide effectiveness thereof
This test arrangement is at Shaanxi Province's Weinan City, test medicine is researched and developed by Shaanxi Meibang Pesticide Co., Ltd., is provided, contrast medicament 10% Gentrin Knotweed P.E wetting powder (autogamy), 3% Zhongshengmycin wetting powder (commercial), 6% antibiotic in pyrimidine nucleoside class aqua (commercial).
The investigation Chinese cabbage downy 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 last dispenser 7 days, 14 days, 30 days, investigate disease index respectively and calculate preventive effect.Experimental result is as follows:
Table 11 Gentrin Knotweed P.E and active component B and the composite control Chinese cabbage downy mildew test of pesticide effectiveness thereof
As can be seen from Table 11, Gentrin Knotweed P.E and active component B composite after effectively can prevent and treat Chinese cabbage downy mildew, 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 seven Gentrin Knotweed P.E and active component B and the composite control pear scab test of pesticide effectiveness thereof
This test arrangement is in Weinan City Pucheng County, Shaanxi Province, test medicine is researched and developed by Shaanxi Meibang Pesticide Co., Ltd., is provided, contrast medicament 10% Gentrin Knotweed P.E wetting powder (autogamy), 3% Zhongshengmycin wetting powder (commercial), 6% antibiotic in pyrimidine nucleoside class aqua (commercial).
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 last dispenser 7 days, 14 days, 30 days, investigate disease index respectively and calculate preventive effect.Experimental result is as follows:
Table 12 Gentrin Knotweed P.E and active component B and the composite control pear scab test of pesticide effectiveness thereof
As can be seen from Table 12, Gentrin Knotweed P.E 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, and after 14 days, control efficiency is up to more than 97%.In test scope of medication, target crop is had no adverse effects.
Application Example eight Gentrin Knotweed P.E and active component B and the composite control tomato blight test of pesticide effectiveness thereof
This test arrangement is at Xian District, Shanxi Province suburban area, test medicine is researched and developed by Shaanxi Meibang Pesticide Co., Ltd., is provided, contrast medicament 10% Gentrin Knotweed P.E wetting powder (autogamy), 3% Zhongshengmycin wetting powder (commercial), 6% antibiotic in pyrimidine nucleoside class aqua (commercial).
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 last dispenser 7 days, 14 days, 30 days, investigate disease index respectively and calculate preventive effect.Experimental result is as follows:
Table 13 Gentrin Knotweed P.E and active component B and the composite control tomato blight test of pesticide effectiveness thereof
As can be seen from Table 13, Gentrin Knotweed P.E 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.
After draw through tests different local throughout the country, Gentrin Knotweed P.E and Zhongshengmycin, the composite rear preventive effect to Common Diseases such as the gray mold in various crop, powdery mildew, downy mildew, late blight, early blight, damping off, bunt, stalk break, rust, fusarium wilt, bakanae disease, brown spot, root rot, ring spot, scabs of antibiotic in pyrimidine nucleoside class are all more than 95%, be better than single dose preventive effect, synergistic effect is obvious.
Claims (6)
1. the bactericidal composition containing Gentrin Knotweed P.E, 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 ~ 80 ︰ 1, described active components A is selected from Gentrin Knotweed P.E, and active component B is selected from the one in Zhongshengmycin, antibiotic in pyrimidine nucleoside class.
2. the bactericidal composition containing Gentrin Knotweed P.E according to claim 1, is characterized in that: the weight ratio of active components A and active component B is 1 ︰ 60 ~ 80 ︰ 1.
3. the bactericidal composition containing Gentrin Knotweed P.E according to claim 2, is characterized in that:
The weight ratio of Gentrin Knotweed P.E and Zhongshengmycin is 1 ︰ 20 ~ 10 ︰ 1;
The weight ratio of Gentrin Knotweed P.E and antibiotic in pyrimidine nucleoside class is 1 ︰ 20 ~ 20 ︰ 1.
4., according to the bactericidal composition containing Gentrin Knotweed P.E in claims 1 to 3 described in any one, it is characterized in that: composition makes wetting powder, water dispersible granules, suspending agent, microemulsion, aqueous emulsion, microcapsule suspending agent, aqua.
5. the bactericidal composition containing Gentrin Knotweed P.E according to claim 4, for preventing and treating the application of crop pest.
6. application according to claim 5, is characterized in that: described disease comprises gray mold, powdery mildew, downy mildew, late blight, early blight, damping off, bunt, stalk break, rust, crown rot, fusarium wilt, banded sclerotial blight, black spot, rust, anthracnose, bakanae disease, brown spot, root rot, ring spot, scab.
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| CN109757476A (en) * | 2019-01-18 | 2019-05-17 | 江苏辉丰生物农业股份有限公司 | A kind of microbicide compositions |
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Application publication date: 20160210 |