CN103651445B - Bactericidal composition containing polyoxin and methoxyacrylate - Google Patents
Bactericidal composition containing polyoxin and methoxyacrylate Download PDFInfo
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Abstract
The invention discloses a bactericidal composition containing polyoxin and methoxyacrylate, which contains a component A and a component B, wherein the component A is selected from polyoxin; the component B is any one of the following bactericides: azoxystrobin, kresoxim-methyl, strobilurin, pyraclostrobin and enestroburin; and the weight ratio of the component A to the component B is 1:72-72:1. The bactericidal composition can be used for preventing and treating multiple crop diseases, has obvious synergistic action, widens the bactericidal spectrum, and has higher activity for downy mildew, epidemic disease, anthracnose, powdery mildew, alternaria leaf spot, leaf spot, banana freckle, rice blast and other diseases; and the bactericidal composition reduces the amount of pesticide, lowers the residue level of the pesticide on the crops, and alleviates the environmental pollution.
Description
The application is divisional application, and original application is the patent application " a kind of bactericidal composition containing polyoxin and methoxy acrylic " of Shaanxi Meibang Pesticide Co., Ltd., and the application number of original application is ︰ 201110022960.4, and original application day is 2011.01.20.
Technical field
The invention belongs to technical field of pesticide, relate to a kind of binary mixture bactericidal composition containing polyoxin and methoxy acrylic ester compounds.
Background technology
Polyoxin (polyoxin), molecular formula: C17H25N5O14, chemical name peptide pyrimidine nucleoside.
Structural formula:
Polyoxin broad-spectrum antibiotics class, have good Uptake and translocation effect, its mechanism of action is the chitinous biosynthesis of interference bacterial cell wall, and germ tube contacts after medicament with mycelium, local bulkiness, break, overflow cell inclusion, and can not normal development, cause death, also have and suppress germ to produce spore and scab expansion effect, this medicine does not have toxicity to animal, does not have poisoning to plant.Main controlling object has wheat powdery mildew, Alternaria alternate, cucumber downy mildew, cucurbits fusarium wilt, black fleck disease of ginseng, rice sheath blight disease, alternaria leaf spot of apple, strawberry and work grape grey mould, the multiple fungal diseases such as forest spike top and Pear black spot.
But in the real process of agricultural production, the problem that controlling disease the most easily produces is the drug-fast generation of germ.Different cultivars composition carries out composite, is to prevent and treat the very common method of resistance germ.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 by polyoxin and kresoxim-methyl, ZJ0712, pyraclostrobin and Enestroburin composite after can produce good synergistic effect, and about polyoxin and the composite relevant report of methoxy acrylic ester compounds Fluoxastrobin, kresoxim-methyl, ZJ0712, pyraclostrobin and Enestroburin not yet open.
Summary of the invention
A kind of bactericidal composition containing polyoxin and methoxy acrylic ester compounds, comprise effective active component, auxiliary agent and filler, it is characterized in that: A, B ratio of weight and number is 1 ︰ 72 ~ 72 ︰ 1, active component A is selected from polyoxin, and active component B is Fluoxastrobin, kresoxim-methyl, ZJ0712, pyraclostrobin, Enestroburin.
Described a kind of bactericidal composition containing polyoxin and methoxy acrylic ester compounds, is characterized in that: the ratio of weight and number of A, B two kinds of active components is 1 ︰ 18 ~ 18 ︰ 1.
The described bactericidal composition containing polyoxin, is characterized in that: the ratio of weight and number of polyoxin and Fluoxastrobin is 1 ︰ 9 ~ 9 ︰ 1.
The described bactericidal composition containing polyoxin, is characterized in that: the ratio of weight and number of polyoxin and kresoxim-methyl is 1 ︰ 9 ~ 9 ︰ 1.
The described bactericidal composition containing polyoxin, is characterized in that: the ratio of weight and number of polyoxin and ZJ0712 is 1 ︰ 9 ~ 9 ︰ 1.
The described bactericidal composition containing polyoxin, is characterized in that: the ratio of weight and number of polyoxin and pyraclostrobin is 1 ︰ 9 ~ 9 ︰ 1.
The described bactericidal composition containing polyoxin, is characterized in that: the ratio of weight and number of polyoxin and Enestroburin is 1 ︰ 9 ~ 9 ︰ 1.
The ratio of weight and number of A, B two kinds of active components is 1 ︰ 72 ~ 72 ︰ 1.Weight percentage active in usual composition is 1 ~ 90% of gross weight, is preferably 5% ~ 85%.According to different preparation types, active component content scope is different.Usually, solid pharmaceutical preparation contains the active substance of by weight 5 ~ 85%, 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 5 ~ 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, binding agent.According to different dosage form, can also containing disintegrant known in those skilled in the art etc. in preparation.
Described dispersant is selected from alkylnaphthalene sulfonate, two (alkyl) naphthalenesulfonate formaldehyde condensation compound, naphthalene sulfonic acid-formaldehyde condensation product, aryl phenol polyoxyethylene succinate sulfonate, octylphenol polyethylene oxyethylene group ether sulfate, polycarboxylate, lignosulfonates, the phonetic formaldehyde condensation products sulphate of alkylphenol-polyethenoxy, alkyl benzene sulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol-polyethenoxy is phonetic, aliphatic amine polyoxyethylene is phonetic, polyoxyethylene carboxylate, one or more during ester polyoxyethylene is phonetic.
Described wetting agent is selected from: one or more in lauryl sodium sulfate, neopelex, Nekal BX, wetting and penetrating agent F, spaonin powder, silkworm excrement, soapberry powder.
Described disintegrant is selected from: one or more in bentonite, urea, ammonium sulfate, aluminium chloride.
Described binding agent is selected from: one or more in gum Arabic, xanthans, sodium phosphate trimer, phenolic resins, sodium alginate, white dextrin, methylcellulose, PAA, polyvinylpyrrolidone, crospolyvinylpyrrolidone, polyethylene glycol, polyvinyl alcohol.
Described filler is selected from: one or more in kaolin, diatomite, bentonite, attapulgite, white carbon, starch, precipitated calcium carbonate.
Composition of the present invention can by user before use through diluting or directly using.Its preparation can be prepared by common processing method, after mixing, then adds surfactant as one or more in dispersant, stabilizing agent, wetting agent, adhesive etc. by active substance 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.
Composition comprises following constituent content when making wetting powder: polyoxin 1 ~ 72%, active component B1 ~ 72%, dispersant 5 ~ 10%, wetting agent 2 ~ 10%, filler add to 100%.
By active component polyoxin, 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 the wetting powder product of the present composition.
Composition comprises following constituent content when making water dispersible granules: active component polyoxin 1 ~ 72%, active component B1 ~ 72%, dispersant 3 ~ 12%, wetting agent 1 ~ 8%, disintegrant 1 ~ 10%, binding agent 1 ~ 8%, filler add to 100%.
Active component polyoxin, 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, obtain granulation materials.Item is quantitatively sent in fluidized bed granulating dryer through granulating and after drying, obtaining the water dispersible granules product of the present composition.
The invention has the advantages that:
(1) polyoxin and methoxy acrylic bactericide composite after, there is notable synergistic and lasting effect;
(2) expand fungicidal spectrum, all have greater activity to diseases such as downy mildew, epidemic disease, gray mold, powdery mildew, anthracnose, spot defoliation, leaf spot, scab, rust, rice blast;
(3) the present invention not with an organic solvent, not easily produces poisoning, is convenient to transport and storage;
(4) decrease the dosage of agricultural chemicals, reduce the residual quantity of agricultural chemicals on crop, alleviate environmental pollution.
Embodiment
Below in conjunction with embodiment to further instruction of the present invention, the portion rate in embodiment is ratio of weight and number, but the present invention is not limited thereto.
The embodiment of the present invention is the method adopting Toxicity Determination and field trial to combine.
Application Example one
Example 160% polyoxin kresoxim-methyl wetting powder
Polyoxin 10%, kresoxim-methyl 50%, polyoxyethylene carboxylate 5%, Nekal BX 5%, bentonite add to 100%, and mixture carries out air-flow crushing, obtained 60% polyoxin kresoxim-methyl wetting powder.
Example 280% polyoxin kresoxim-methyl wetting powder
Polyoxin 30%, kresoxim-methyl 50%, naphthalene sulfonic acid-formaldehyde condensation product sodium salt 5%, lauryl sodium sulfate 4%, kaolin add to 100%, and mixture carries out air-flow crushing, obtained 80% polyoxin kresoxim-methyl wetting powder.
Example 350% polyoxin water dispersion granules agent of Kresoxim
Polyoxin 5%, kresoxim-methyl 45%, soapberry powder 5%, alkyl benzene sulfonate calcium salt 5%, ammonium sulfate 1%, bentonite add to 100%, the obtained 50% polyoxin water dispersion granules agent of Kresoxim of mixing.
Example 470% polyoxin water dispersion granules agent of Kresoxim
Polyoxin 15%, kresoxim-methyl 55%, wetting and penetrating agent F4%, lignosulfonates 5%, urea 0.8%, bentonite add to 100%, the obtained 70% polyoxin water dispersion granules agent of Kresoxim of mixing.
Example 555% polyoxin ZJ0712 wetting powder
Polyoxin 5%, ZJ0712 50%, lignosulfonates 6%, wetting and penetrating agent F5%, kaolin add to 100%, and mixture carries out air-flow crushing, obtained 55% polyoxin ZJ0712 wetting powder.
Example 635% polyoxin ZJ0712 wetting powder
Polyoxin 30%, ZJ0712 5%, alkyl benzene sulfonate calcium salt 5%, spaonin powder 4%, white carbon add to 100%, and mixture carries out air-flow crushing, obtained 35% polyoxin ZJ0712 wetting powder.
Example 740% polyoxin ZJ0712 water dispersible granules
Polyoxin 30%, ZJ0712 10%, alkylphenol-polyethenoxy are phonetic 6%, lauryl sodium sulfate 5%, aluminium chloride 0.5%, bentonite 15%, diatomite add to 100%, the obtained 40% polyoxin ZJ0712 water dispersible granules of mixing.
Example 825% polyoxin ZJ0712 water dispersible granules
Polyoxin 5%, ZJ0712 20%, polyoxyethylene carboxylate 4%, silkworm excrement 5%, urea 0.2%, bentonite 10%, kaolin add to 100%, the obtained 25% polyoxin ZJ0712 water dispersible granules of mixing.
Example 960% polyoxin pyraclostrobin wetting powder
Polyoxin 20%, pyraclostrobin 40%, aryl phenol polyoxyethylene succinate sulfonate 8%, wetting and penetrating agent F5%, attapulgite add to 100%, and mixture carries out air-flow crushing, obtained 60% polyoxin pyraclostrobin wetting powder.
Example 1080% polyoxin pyraclostrobin wetting powder
Polyoxin 25%, pyraclostrobin 55%, lignosulfonates 7%, spaonin powder 5%, white carbon add to 100%, and mixture carries out air-flow crushing, obtained 80% polyoxin pyraclostrobin wetting powder.
Example 1150% polyoxin pyraclostrobin water dispersible granule
Polyoxin 15%, pyraclostrobin 35%, naphthalene sulfonic acid-formaldehyde condensation product 6%, soapberry powder 4%, aluminium chloride 1%, bentonite add to 100%, the obtained 50% polyoxin pyraclostrobin water dispersible granule of mixing.
Example 1215% polyoxin pyraclostrobin water dispersible granule
Polyoxin 5%, pyraclostrobin 10%, lignosulfonates 3%, Nekal BX 5%, ammonium sulfate 1%, bentonite add to 100%, the obtained 15% polyoxin pyraclostrobin water dispersible granule of mixing.
Example 1345% polyoxin Enestroburin wetting powder
Polyoxin 15%, Enestroburin 30%, alkyl benzene sulfonate calcium salt 7%, silkworm excrement 5%, diatomite add to 100%, and mixture carries out air-flow crushing, obtained 45% polyoxin Enestroburin wetting powder.
Example 1480% polyoxin Enestroburin wetting powder
Polyoxin 20%, Enestroburin 60%, naphthalene sulfonic acid-formaldehyde condensation product sodium salt 8%, soapberry powder 6%, white carbon add to 100%, and mixture carries out air-flow crushing, obtained 80% polyoxin Enestroburin wetting powder.
Example 1536% polyoxin Enestroburin water dispersible granules
Polyoxin 6%, Enestroburin 30%, lignosulfonates 6%, wetting and penetrating agent F5%, ammonium sulfate 1.2%, bentonite add to 100%, the obtained 36% polyoxin Enestroburin water dispersible granules of mixing.
Example 165% polyoxin Enestroburin water dispersible granules
Polyoxin 2%, Enestroburin 3%, alkylnaphthalene sulfonate 6%, spaonin powder 4%, ammonium sulfate 1%, bentonite 10%, kaolin add to 100%, the obtained 5% polyoxin Enestroburin water dispersible granules of mixing.
Example 1760% polyoxin Fluoxastrobin wetting powder
Polyoxin 10%, Fluoxastrobin 50%, aryl phenol polyoxyethylene succinate sulfonate 6%, wetting and penetrating agent F5%, attapulgite add to 100%, and mixture carries out air-flow crushing, obtained 60% polyoxin Fluoxastrobin wetting powder.
Example 1880% polyoxin Fluoxastrobin wetting powder
Polyoxin 8%, Fluoxastrobin 72%, lignosulfonates 4%, spaonin powder 5%, kaolin add to 100%, and mixture carries out air-flow crushing, obtained 80% polyoxin Fluoxastrobin wetting powder.
Example 1950% polyoxin azoxystrobin water dispersible granule
Polyoxin 10%, Fluoxastrobin 40%, naphthalene sulfonic acid-formaldehyde condensation product 6%, soapberry powder 4%, aluminium chloride 0.8%, bentonite add to 100%, the obtained 50% polyoxin azoxystrobin water dispersible granule of mixing.
Example 2060% polyoxin azoxystrobin water dispersible granule
Polyoxin 15%, Fluoxastrobin 45%, lignosulfonates 4%, Nekal BX 5%, ammonium sulfate 1%, bentonite add to 100%, the obtained 60% polyoxin azoxystrobin water dispersible granule of mixing.
The embodiment of the present invention is the method adopting Toxicity Determination and field trial to combine.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.
Polyoxin and active component B(B are selected from the one of Fluoxastrobin, kresoxim-methyl, ZJ0712, pyraclostrobin, Enestroburin) the composite Toxicity Determination to target.
Determine that after the effective inhibition concentration scope of each medicament, each 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 target fungus.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) with method of least squares, and calculates the EC50 value of often kind of medicament thus.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 component polyoxin and B(Fluoxastrobin, kresoxim-methyl, ZJ0712, pyraclostrobin, Enestroburin) shared in combination ratio;
A is polyoxin;
B is the one in Fluoxastrobin, kresoxim-methyl, ZJ0712, pyraclostrobin, Enestroburin.
Implementation of an application example two:
Polyoxin and azoxystrobin compound are to graw mold of tomato Toxicity Determination
Test medicine provides by Shaanxi Meibang Pesticide Co., Ltd..
Experimental scheme: through effective inhibition concentration scope of preliminary experiment determination polyoxin, the former medicine of Fluoxastrobin and the two different ratio mixture.
Toxicity test result
Table 1 polyoxin, Fluoxastrobin and the composite toxicity test analysis of results table to graw mold of tomato thereof
As shown in Table 1, polyoxin, Fluoxastrobin are to the EC of graw mold of tomato
50be respectively 1.24mg/L and 1.89mg/L.Polyoxin and Fluoxastrobin compare when 72:1 to 1:72, synergy ratio SR is all greater than 1.5, illustrate that polyoxin and kresoxim-methyl mixture in 72 ︰ 1 to 1 ︰ 72 scopes all shows synergistic effect, especially when the proportioning of the two is at 18:1 to 1:18, synergistic effect is more obviously given prominence to, wherein when polyoxin and Fluoxastrobin weight ratio are 1 ︰ 1, synergy ratio SR is maximum, and synergistic effect is the most obvious.
Implementation of an application example three polyoxin and kresoxim-methyl composite to apple mildew Toxicity Determination
Test medicine provides by Shaanxi Meibang Pesticide Co., Ltd..
Experimental scheme: through effective inhibition concentration scope of preliminary experiment determination polyoxin, the former medicine of kresoxim-methyl and the two different ratio mixture.
Toxicity test result
Table 2 polyoxin, kresoxim-methyl and the composite toxicity test analysis of results table to apple mildew thereof
As shown in Table 2, polyoxin, kresoxim-methyl are to the EC of apple mildew
50be respectively 1.51mg/L and 1.66mg/L.The virulence of kresoxim-methyl is higher than the virulence of polyoxin.Polyoxin and kresoxim-methyl proportioning are when 72:1 to 1:72, synergy ratio SR is all greater than 1.5, illustrate that polyoxin and kresoxim-methyl mixture in 72 ︰ 1 to 1 ︰ 72 scopes all shows synergistic effect, especially when the proportioning of the two is at 18:1 to 1:18, synergistic effect is more obviously given prominence to, wherein when polyoxin and kresoxim-methyl weight ratio are 1 ︰ 1, synergy ratio SR is maximum, and synergistic effect is the most obvious.
Implementation of an application example four polyoxin and ZJ0712 composite to powdery mildew of cucumber Toxicity Determination.
Test medicine provides by Shaanxi Meibang Pesticide Co., Ltd..
Experimental scheme: through effective inhibition concentration scope of preliminary experiment determination polyoxin, the former medicine of ZJ0712 and the two different ratio mixture.
Toxicity test result
Table 3 polyoxin, ZJ0712 and the composite toxicity test analysis of results table to powdery mildew of cucumber thereof
As shown in Table 3, polyoxin, ZJ0712 are to the EC of powdery mildew of cucumber
50be respectively 1.35mg/L and 0.14mg/L.The virulence of ZJ0712 is higher than the virulence of polyoxin.Polyoxin and ZJ0712 proportioning are when 72:1 to 1:72, synergy ratio SR is all greater than 1.5, illustrate that polyoxin and ZJ0712 mixture in 72 ︰ 1 to 1 ︰ 72 scopes all shows synergistic effect, especially when the proportioning of the two is at 18:1 to 1:6, synergistic effect is more obviously given prominence to, wherein when polyoxin and ZJ0712 weight ratio are 3 ︰ 1, synergy ratio SR is maximum, and synergistic effect is the most obvious.
Implementation of an application example five
Polyoxin and pyraclostrobin composite to sigatoka Toxicity Determination.
Test medicine provides by Shaanxi Meibang Pesticide Co., Ltd..
Experimental scheme: through effective inhibition concentration scope of preliminary experiment determination polyoxin, the former medicine of pyraclostrobin and the two different ratio mixture.
Toxicity test result
Table 4 polyoxin, pyraclostrobin and the composite toxicity test analysis of results table to sigatoka thereof
As shown in Table 4, polyoxin, pyraclostrobin are to the EC of sigatoka
50be respectively 1.67mg/L and 1.69mg/L.The virulence of pyraclostrobin is higher than the virulence of polyoxin.Polyoxin and pyraclostrobin proportioning are when 72:1 to 1:72, synergy ratio SR is all greater than 1.5, illustrate that polyoxin and pyraclostrobin mixture in 72 ︰ 1 to 1 ︰ 72 scopes all shows synergistic effect, especially when the proportioning of the two is at 18:1 to 1:18, synergistic effect is more obviously given prominence to, wherein when polyoxin and pyraclostrobin weight ratio are 1 ︰ 1, synergy ratio SR is maximum, and synergistic effect is the most obvious.
Implementation of an application example six:
Polyoxin and Enestroburin composite to downy mildew of garpe Toxicity Determination.
Test medicine provides by Shaanxi Meibang Pesticide Co., Ltd..
Experimental scheme: through effective inhibition concentration scope of preliminary experiment determination polyoxin, the former medicine of Enestroburin and the two different ratio mixture.
Toxicity test result
Table 5 polyoxin, Enestroburin and the composite toxicity test analysis of results table to downy mildew of garpe thereof
As shown in Table 5, polyoxin, Enestroburin are to the EC of downy mildew of garpe
50be respectively 1.77mg/L and 1.35mg/L.The virulence of Enestroburin is higher than the virulence of polyoxin.Polyoxin and Enestroburin compare when 72:1 to 1:72, synergy ratio SR is all greater than 1.5, illustrate that polyoxin and Enestroburin mixture in 72 ︰ 1 to 1 ︰ 72 scopes all shows synergistic effect, especially when the proportioning of the two is at 18:1 to 1:18, synergistic effect is more obviously given prominence to, wherein when polyoxin and Enestroburin weight ratio are 1 ︰ 1, synergy ratio SR is maximum, and synergistic effect is the most obvious.
Application Example seven polyoxin and kresoxim-methyl and compositely prevent and treat the apple mildew test of pesticide effectiveness
This experimental establishment is in Liquan County, Xianyang, Shanxi province city, and test medicine is researched and developed by Shaanxi Meibang Pesticide Co., Ltd., provided, contrast medicament 10% Wettable polyoxin powder (commercial), 50% water dispersion granules agent of Kresoxim (commercial).
Investigation apple mildew disease index before medicine, in their early stage dispenser, second time dispenser afterwards, altogether dispenser 3 times on the 7th, 7 days, 14 days investigation disease indexs after third time dispenser also calculate preventive effect.Experimental result is as follows:
Table 6 polyoxin, kresoxim-methyl and compositely prevent and treat the apple mildew test of pesticide effectiveness
As can be seen from Table 6, polyoxin and kresoxim-methyl composite after effectively can prevent and treat apple mildew, control efficiency is all better than the preventive effect of single dose.In test scope of medication, target crop is had no adverse effects.
Application Example eight polyoxin and ZJ0712 and compositely prevent and treat the powdery mildew of cucumber test of pesticide effectiveness
This experimental establishment is in suburb, Rizhao City, Shandong Province, and test medicine is researched and developed by Shaanxi Meibang Pesticide Co., Ltd., provided, contrast medicament 10% Wettable polyoxin powder (commercial), 10% ZJ0712 suspending agent (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 second time dispenser 7 days, 14 days, investigate disease index respectively and calculate preventive effect.Experimental result is as follows:
Table 7 polyoxin, ZJ0712 and compositely prevent and treat the powdery mildew of cucumber test of pesticide effectiveness
As can be seen from Table 7, polyoxin and ZJ0712 composite after effectively can prevent and treat powdery mildew of cucumber, control efficiency is all better than the preventive effect of single dose.In test scope of medication, target crop is had no adverse effects.
Application Example nine polyoxin and pyraclostrobin and compositely prevent and treat the leaf spot of peanut test of pesticide effectiveness
This experimental establishment is in Wei Qiu township of Yanjin County of Henan Province, and test medicine is provided by Shaanxi Meibang Pesticide Co., Ltd., contrast medicament 10% Wettable polyoxin powder (commercial), 25% pyraclostrobin missible oil (commercial).
The investigation leaf spot of peanut 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, investigate disease index respectively and calculate preventive effect.Experimental result is as follows:
Table 8 polyoxin, pyraclostrobin and compositely prevent and treat the leaf spot of peanut test of pesticide effectiveness
As can be seen from Table 8, polyoxin and pyraclostrobin composite after effectively can prevent and treat leaf spot of peanut, control efficiency is all better than the preventive effect of single dose.In test scope of medication, target crop is had no adverse effects.
Application Example ten polyoxin and Enestroburin and compositely prevent and treat the downy mildew of garpe test of pesticide effectiveness
This experimental establishment is in Weinan City Pucheng County, Shaanxi Province, and test medicine is researched and developed by Shaanxi Meibang Pesticide Co., Ltd., provided, contrast medicament 10% Wettable polyoxin powder (commercial), 25% Enestroburin missible oil (commercial).
Investigation downy mildew of garpe disease index before medicine, in their early stage dispenser, second time dispenser afterwards, altogether dispenser 3 times on the 7th, 7 days, 14 days investigation disease indexs after second time dispenser also calculate preventive effect.Experimental result is as follows:
Table 9 polyoxin, Enestroburin and compositely prevent and treat the downy mildew of garpe test of pesticide effectiveness
As can be seen from Table 9, polyoxin and Enestroburin composite after effectively can prevent and treat downy mildew of garpe, control efficiency is all better than the preventive effect of single dose.In test scope of medication, target crop is had no adverse effects.
Application Example 11 polyoxin and Fluoxastrobin and compositely prevent and treat the wheat rust test of pesticide effectiveness
This experimental establishment is in Dancheng County, Henan Province, and test medicine is researched and developed by Shaanxi Meibang Pesticide Co., Ltd., provided, contrast medicament 10% Wettable polyoxin powder (commercial), 50% azoxystrobin water dispersible granule (commercial).
Investigation wheat rust disease index before medicine, in their early stage dispenser, second time dispenser afterwards, altogether dispenser 2 times on the 10th, 7 days, 14 days investigation disease indexs after second time dispenser also calculate preventive effect.Experimental result is as follows:
Table 10 polyoxin, Fluoxastrobin and compositely prevent and treat the wheat rust test of pesticide effectiveness
As can be seen from Table 10, effectively can prevent and treat wheat rust after polyoxin and azoxystrobin compound, control efficiency is all better than the preventive effect of single dose.In test scope of medication, target crop is had no adverse effects.
Claims (6)
1. containing a bactericidal composition for polyoxin and methoxy acrylic, comprise effective active component, auxiliary agent, it is characterized in that: active ingredient is A and B, A, B ratio of weight and number be 1 ︰ 72 ~ 72 ︰ 1, described A is polyoxin, and B is Enestroburin.
2. bactericidal composition according to claim 1, is characterized in that: the ratio of weight and number of A, B two kinds of active components is 1 ︰ 18 ~ 18 ︰ 1.
3. bactericidal composition according to claim 2, is characterized in that: the ratio of weight and number of polyoxin and Enestroburin is 1 ︰ 9 ~ 9 ︰ 1.
4. bactericidal composition according to claim 1, is characterized in that: wherein effective active composition accounts for 5% ~ 80% of gross weight.
5. bactericidal composition according to claim 1 is for preventing and treating the application of the disease on vegetables, fruit tree and cereal crop.
6. application according to claim 5, is characterized in that: described disease comprises downy mildew, epidemic disease, gray mold, powdery mildew, anthracnose, spot defoliation, leaf spot, scab, rust, rice blast.
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