Summary of the invention
The object of the present invention is to provide a kind of bactericidal composition that contains oxime bacterium ester and cyproconazole, said composition function admirable, bactericidal effect excellence, avoids disease to develop immunity to drugs, and increases the medicine lasting period, is beneficial to environment sustainable development.
The present invention also provides the application of above-mentioned bactericidal composition in control vegetables, fruit diseases.
The present invention is achieved by the following measures:
A bactericidal composition that contains oxime bacterium ester and cyproconazole, is characterized in that: active constituents of medicine comprises that weight ratio is 1: 1-10: 1 oxime bacterium ester and cyproconazole, preferred weight ratio is 1: 1 to 5: 1.
Described containing oxime bacterium ester with the bactericidal composition of cyproconazole by the known method of the art personnel, can be made into the upper any formulation allowing of agricultural, more preferably as suspending agent or water dispersible granules.
When composition is made water dispersible granules, the component that comprises following percentage by weight: active constituents of medicine 30%-90%, dispersant 4-10%, wetting agent 2-10%, disintegrant 1-10%, filler surplus.Preferably, composition is comprised of the component of following percentage by weight: active constituents of medicine 30%-90%, dispersant 4.5%, wetting agent 2%, disintegrant 1.25%, filler surplus.More preferably by the component of following percentage by weight, formed: active constituents of medicine 60%-87%, dispersant 4.5%, wetting agent 2%, disintegrant 1.25%, filler surplus.
Water dispersible granules preparation method is: cyproconazole, oxime bacterium ester, dispersant, wetting agent, disintegrant, filler are mixed in mixer, after airslide disintegrating mill is crushed to particle diameter 20-40 μ m, mix again, mediate amount of water 20-30%, carry out extruder grain, 40-50 ℃ of oven dry, can be made into oxime bacterium ester cyproconazole water dispersible granules product.
Described dispersant is one or more of calcium lignosulfonate, maleic acid-acrylic acid copolymer salt, polyox-yethylene-polyoxypropylene block copolymer, alkylphenol sodium sulfonate, alkyl naphthalene sulfonic acid formaldehyde condensation products sodium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, ethylene oxide-propylene oxide block copolymer and polycarboxylate sodium.Preferred dispersants by polycarboxylate sodium and calcium lignosulfonate in mass ratio 2:1 mix.
Described wetting agent is selected from: one or more in lauryl sodium sulfate, a-sulfo methyl ester, sodium tetradecyl sulfate, neopelex, Negel, a-alkene sulfonic acid sodium, alkyl phenol polyethenoxy ether sodium sulfate, sodium lignin sulfonate, Nekal BX, fatty acid sulphate and fatty acid ester sulphate, preferably wetting agent by lauryl sodium sulfate and sodium lignin sulfonate in mass ratio 1:1 mix.
Described disintegrant is selected from: one or more in potassium sulfate, sodium cellulose glycolate, potassium chloride, diammonium hydrogen phosphate, urea, sodium sulphate, ammonium sulfate, ammonium nitrate, calcium chloride and sodium chloride, preferably disintegrant by ammonium sulfate and urea in mass ratio for 1.5:1 mixes.
Described filler is selected from: one or more in kaolin, bentonite, talcum powder, attapulgite, diatomite, white carbon, starch, precipitated calcium carbonate, preferred filler is white carbon.
When composition is made suspending agent, take water as solvent, each constituent content is: active constituents of medicine 50-600g/L, dispersant 20-100g/L, wetting agent 10-100g/L, defoamer 1-10g/L, thickening stabilizing agent 1-20g/L, antifreeze 1-80g/L, water are surplus.Preferred each constituent content is: active constituents of medicine 50-600g/L, dispersant 50g/L, wetting agent 10g/L, defoamer 5g/L, thickening stabilizing agent 2.5g/L, antifreeze 50g/L, water are surplus.More preferably each constituent content is: active constituents of medicine 100-550g/L, dispersant 50g/L, wetting agent 10g/L, defoamer 5g/L, thickening stabilizing agent 2.5g/L, antifreeze 50g/L, water are surplus.
Suspending agent preparation method is: dispersant, wetting agent, defoamer, thickening stabilizing agent, antifreeze, water in above-mentioned formula are mixed through high speed shear, add cyproconazole, oxime bacterium ester, ball milling 2-3 hour in ball mill, make diameter of particle all below 5 μ m, make oxime bacterium ester cyproconazole suspending agent product.
Described dispersant is one or more of calcium lignosulfonate, maleic acid-acrylic acid copolymer salt, polyox-yethylene-polyoxypropylene block copolymer, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, ethylene oxide-propylene oxide block copolymer and polycarboxylate sodium.Preferred dispersants by naphthalene sulfonic acid-formaldehyde condensation product sodium salt, polycarboxylate sodium and calcium lignosulfonate in mass ratio 1:3:1 mix.
Described wetting agent is selected from: one or more in lauryl sodium sulfate, sodium tetradecyl sulfate, neopelex, Negel, sodium lignin sulfonate and Nekal BX, preferably wetting agent is lauryl sodium sulfate.
Described defoamer is selected from: silicone oil, silicone compound, C
10-20saturated fat acid compounds, C
8-10one or more in aliphatic alcohols compound, preferably defoamer is silicone compound.
Described thickening stabilizing agent is selected from: one or more in xanthans, aluminium-magnesium silicate, gum Arabic and polyvinyl alcohol, preferably thickening stabilizing agent is aluminium-magnesium silicate: xanthans is in mass ratio for 1.5:1 mixes.
Described antifreeze is selected from: one or more in ethylene glycol, propane diols and glycerine, preferably antifreeze is ethylene glycol.
Composition of the present invention is mainly used in preventing and treating powdery mildew, scab and the spot defoliation in the disease in vegetables, fruit tree, especially fruit and vegetables.
Beneficial effect of the present invention: (1) present composition effective active composition oxime bacterium ester and cyproconazole belong to the bactericide of two kinds of different mechanisms of action, and both mutual mixtures can not produce conflict, and have expanded fungicidal spectrum, improves germicidal efficiency; (2) present composition has good synergistic effect within the specific limits, and preventive effect is higher than single dose, and dosage is little, has avoided the pesticide resistance of disease, has extended the medicine lasting period, is beneficial to environment sustainable development; (3) present composition can be made into suspending agent and water dispersible granules, and the selection of auxiliary material and formulation has improved drug effect; (4) present composition has special efficacy to the powdery mildew on vegetables, fruit tree, scab, spot defoliation.
Embodiment
Below in conjunction with embodiment, to further instruction of the present invention, but the present invention is not limited thereto.If no special instructions, the percentage in following embodiment is all weight percentage.
The embodiment of the present invention is the method that adopts 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.
oxime bacterium ester and cyproconazole are composite to powdery mildew of cucumber Toxicity Determination
Test medicine provides by Run Feng chemical inc, Weifang, Shandong.
After the effective inhibition concentration scope of each medicament is determined in prerun, each medicament is established respectively 7 dosage processing by active constituent content, establishes clear water contrast.With reference to < < farm-chemical indoor determination test rule bactericide > >, carry out, adopt mycelial growth rate method to measure the virulence of medicament to powdery mildew of cucumber.After 72h, by right-angled intersection method, measure colony diameter, calculate each processing 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, with method of least squares, try to achieve virulence regression equation (y=a+bx), and calculate thus the EC50 value of every kind of medicament.According to Wadley method, calculate the different proportioning synergy ratios of two medicaments (SR), SR < 0.5 is antagonism simultaneously, and 0.5≤SR≤1.5 are summation action, and SR > 1.5 is synergistic effect.Computing formula is as follows:
Wherein: a, b are respectively oxime bacterium ester and cyproconazole shared ratio in combination, and A is oxime bacterium ester, and B is cyproconazole.
Result of the test is as shown in table 1:
From table 1, oxime bacterium ester, the EC of cyproconazole to powdery mildew of cucumber
50be respectively 1.79mg/L and 32.41 mg/L.The virulence of oxime bacterium ester is apparently higher than the virulence of cyproconazole.Oxime bacterium ester and cyproconazole mixture within the scope of 1:1-10:1 all shows obvious synergistic effect, and wherein, both mixed synergies within the scope of 1:1-5:1 are comparatively desirable.
Lower mask body is enumerated representative embodiment of the present invention.
embodiment 186% oxime bacterium ester cyproconazole water dispersible granules
Formula is: oxime bacterium ester 43%, cyproconazole 43%, polycarboxylate sodium 3%, calcium lignosulfonate 1.5%, lauryl sodium sulfate 1%, sodium lignin sulfonate 1%, ammonium sulfate 0.75%, urea 0.5%, white carbon add to 100%.
Preparation method is: cyproconazole, oxime bacterium ester, dispersant, wetting agent, disintegrant, filler are mixed in mixer, after airslide disintegrating mill is crushed to particle diameter 20-40 μ m, mix again, mediate amount of water 20-30%, carry out extruder grain, 40-50 ℃ of oven dry, can be made into 86% water dispersible granules.
embodiment 287% oxime bacterium ester cyproconazole water dispersible granules
Formula is: oxime bacterium ester 62%, cyproconazole 25%, polycarboxylate sodium 3%, calcium lignosulfonate 1.5%, lauryl sodium sulfate 1%, sodium lignin sulfonate 1%, ammonium sulfate 0.75%, urea 0.5%, white carbon add to 100%.Preparation method is with embodiment 1.
embodiment 384% oxime bacterium ester cyproconazole water dispersible granules
Formula is: oxime bacterium ester 70%, cyproconazole 14%, polycarboxylate sodium 3%, calcium lignosulfonate 1.5%, lauryl sodium sulfate 1%, sodium lignin sulfonate 1%, ammonium sulfate 0.75%, urea 0.5%, white carbon add to 100%.Preparation method is with embodiment 1.
embodiment 485.8% oxime bacterium ester cyproconazole water dispersible granules
Formula is: oxime bacterium ester 78%, cyproconazole 7.8%, polycarboxylate sodium 3%, calcium lignosulfonate 1.5%, lauryl sodium sulfate 1%, sodium lignin sulfonate 1%, ammonium sulfate 0.75%, urea 0.5%, white carbon add to 100%.Preparation method is with embodiment 1.
embodiment 572% oxime bacterium ester cyproconazole water dispersible granules
Formula is: oxime bacterium ester 36%, cyproconazole 36%, maleic acid-acrylic acid copolymer salt 5%, Nekal BX 3%, ammonium sulfate 15%, sodium sulphate 5%, starch add to 100%.Preparation method is with embodiment 1.
embodiment 634.8% oxime bacterium ester cyproconazole water dispersible granules
Formula is: oxime bacterium ester 24.8%, cyproconazole 10%, polycarboxylate sodium 5%, ethylene oxide-propylene oxide block copolymer 3%, sodium tetradecyl sulfate 1%, sodium lignin sulfonate 1%, calcium chloride 28%, precipitated calcium carbonate add to 100%.Preparation method is with embodiment 1.
embodiment 762.4% oxime bacterium ester cyproconazole water dispersible granules
Formula is: oxime bacterium ester 52%, cyproconazole 10.4%, alkylphenol sodium sulfonate 8%, calcium lignosulfonate 1.5%, lauryl sodium sulfate 1%, sodium lignin sulfonate 1%, potassium sulfate 15%, urea 7%, sodium cellulose glycolate 5%, bentonite add to 100%.Preparation method is with embodiment 1.
embodiment 836% oxime bacterium ester cyproconazole water dispersible granules
Formula is: oxime bacterium ester 33%, cyproconazole 3%, polycarboxylate sodium 4%, naphthalene sulfonic acid-formaldehyde condensation product sodium salt 1.5%, ethylene oxide-propylene oxide block copolymer 2%, lauryl sodium sulfate 1%, a-alkene sulfonic acid sodium 2%, sodium chloride 21%, talcum powder add to 100%.Preparation method is with embodiment 1.
embodiment 9100g/L oxime bacterium ester cyproconazole suspending agent
Formula is: oxime bacterium ester 50g/L, cyproconazole 50g/L, naphthalene sulfonic acid-formaldehyde condensation product sodium salt 10g/L, polycarboxylate sodium 30g/L, calcium lignosulfonate 10g/L, lauryl sodium sulfate 10g/L, ethylene glycol 50g/L, silicone compound 5g/L, aluminium-magnesium silicate 1.5g/L, xanthans 1g/L, water is made surplus.
Preparation method is: by dispersant in above-mentioned formula, wetting agent, defoamer, thickening stabilizing agent, antifreeze,
water,mix through high speed shear, add cyproconazole, oxime bacterium ester, ball milling 2-3 hour in ball mill, makes diameter of particle all below 5 μ m, obtains.
embodiment 10535g/L oxime bacterium ester cyproconazole suspending agent
Formula is: oxime bacterium ester 375g/L, cyproconazole 160g/L, naphthalene sulfonic acid-formaldehyde condensation product sodium salt 10g/L, polycarboxylate sodium 30g/L, calcium lignosulfonate 10g/L, lauryl sodium sulfate 10g/L, ethylene glycol 50g/L, silicone compound 5g/L, aluminium-magnesium silicate 1.5g/L, xanthans 1g/L, water is made surplus.Preparation method is with embodiment 9.
embodiment 11120g/L oxime bacterium ester cyproconazole suspending agent
Formula is: oxime bacterium ester 100g/L, cyproconazole 20g/L, naphthalene sulfonic acid-formaldehyde condensation product sodium salt 10g/L, polycarboxylate sodium 30g/L, calcium lignosulfonate 10g/L, lauryl sodium sulfate 10g/L, ethylene glycol 50g/L, silicone compound 5g/L, aluminium-magnesium silicate 1.5g/L, xanthans 1g/L, water is made surplus.Preparation method is with embodiment 9.
embodiment 12132g/L oxime bacterium ester cyproconazole suspending agent
Formula is: oxime bacterium ester 120g/L, cyproconazole 12g/L, naphthalene sulfonic acid-formaldehyde condensation product sodium salt 10g/L, polycarboxylate sodium 30g/L, calcium lignosulfonate 10g/L, lauryl sodium sulfate 10g/L, ethylene glycol 50g/L, silicone compound 5g/L, aluminium-magnesium silicate 1.5g/L, xanthans 1g/L, water is made surplus.Preparation method is with embodiment 9.
embodiment 13420g/L oxime bacterium ester cyproconazole suspending agent
Formula is: oxime bacterium ester 210g/L, cyproconazole 210 g/L, maleic acid-acrylic acid copolymer salt 10g/L, polycarboxylate sodium 30g/L, calcium lignosulfonate 10g/L, neopelex 10g/L, glycerine 50g/L, C
10-20saturated fat acid compounds 5g/L, gum Arabic 1g/L, water is made surplus.Preparation method is with embodiment 9.
embodiment 14348g/L oxime bacterium ester cyproconazole suspending agent
Formula is: oxime bacterium ester 248g/L, cyproconazole 100 g/L, polyox-yethylene-polyoxypropylene block copolymer 50g/L, calcium lignosulfonate 10g/L, lauryl sodium sulfate 10g/L, propane diols 50g/L, silicone compound 5g/L, aluminium-magnesium silicate 1.5g/L, polyvinyl alcohol 1g/L, water is made surplus.Preparation method is with embodiment 9.
embodiment 15240g/L oxime bacterium ester cyproconazole suspending agent
Formula is: oxime bacterium ester 200g/L, cyproconazole 40g/L, polycarboxylate sodium 30g/L, calcium lignosulfonate 20g/L, sodium tetradecyl sulfate 10g/L, ethylene glycol 50g/L, silicone compound 5g/L, and aluminium-magnesium silicate 5g/L, water is made surplus.Preparation method is with embodiment 9.
embodiment 1666g/L oxime bacterium ester cyproconazole suspending agent
Formula is: oxime bacterium ester 60g/L, cyproconazole 6g/L, calcium lignosulfonate 60g/L, Negel 0.3g/L, sodium lignin sulfonate 0.3g/L, Nekal BX 0.4g/L, propane diols 50g/L, silicone compound 5g/L, and xanthans 2g/L, water is made surplus.Preparation method is with embodiment 9.
Oxime bacterium ester prepared by above-described embodiment and cyproconazole complex preparation constant product quality are tested, and the results are shown in following table 2 and table 3.
By table 2,3, known, in embodiment 5,6,7,8,13,14,15,16, after heat storage there is obvious variation in quality, do not meet product quality requirement, and use the embodiment 1,2,3,4,9,10,11,12 of preferred promoter before heat storage and after heat storage, quality is all good, and preferred promoter plays key effect in product quality.
Oxime bacterium ester prepared by above-described embodiment and cyproconazole complex preparation are prevented and treated apple mildew situation and are carried out the test of pesticide effectiveness.This experimental establishment is carried out in this locality, and contrast medicament is 50% trifloxystrobin water dispersible granule (commercial), 40% cyproconazole suspending agent (commercial).
In apple mildew their early stage spray pesticide, dispenser in every 7 days once, is total to dispenser 3 times.Before dispenser with after dispenser for the third time, within 7 days, investigate disease index, finally calculate preventive effect.Experimental result is as follows:
By table 4, can be found out, after oxime bacterium ester and cyproconazole are composite, can effectively prevent and treat apple mildew, control efficiency is all better than contrasting medicament, in test scope of medication, target crop is had no adverse effects.Use the embodiment preventive effect of preferred promoter will obviously be better than other embodiment, and apple mildew preventive effect is reached more than 90%, in process of the test, also find, oxime bacterium ester and cyproconazole compound drug also show excellent control efficiency to alternaria leaf spot of apple, embodiment 2 and 10 preventive effects are more than 95%, and other embodiment preventive effects are at 70-80%.
Oxime bacterium ester prepared by above-described embodiment and cyproconazole complex preparation control banana freckle situation are carried out the test of pesticide effectiveness, this experimental establishment is in Pubei County, Guangxi, and contrast medicament is 50% trifloxystrobin water dispersible granule (commercial), 40% cyproconazole suspending agent (commercial).
In banana freckle their early stage spray pesticide, once, dispenser 3 times altogether, investigates disease index in 7 days before dispenser with after dispenser for the third time, finally calculates preventive effect in dispenser in every 7 days, and result of the test is as follows:
By table 5, can be found out, after oxime bacterium ester and cyproconazole are composite, can effectively prevent and treat the generation of banana freckle, control efficiency is all better than contrasting medicament, and dosage is low, in this test scope of medication, target crop is had no adverse effects.In addition, the preventive effect of other embodiment, in 80% left and right, is also better than contrasting medicament.
Oxime bacterium ester, cyproconazole complex preparation prepared by above-described embodiment are prevented and treated powdery mildew of cucumber situation and are carried out the test of pesticide effectiveness.This experimental establishment is carried out in locality, and contrast medicament is 50% trifloxystrobin water dispersible granule (commercial), 40% cyproconazole suspending agent (commercial).
In powdery mildew of cucumber their early stage spray pesticide, once, dispenser 3 times altogether, investigates disease index in 7 days before dispenser with after dispenser for the third time, finally calculates preventive effect in dispenser in every 7 days.Experimental result is as follows:
By table 6, can be found out, after oxime bacterium ester and cyproconazole are composite, can effectively prevent and treat the generation of powdery mildew of cucumber, control efficiency is all better than contrasting medicament, in this test scope of medication, target crop is had no adverse effects.In addition, the preventive effect of other embodiment, in 80% left and right, is also better than contrasting medicament.