A kind of bactericidal composition that contains Fluoxastrobin and own azoles alcohol
Technical field
The invention belongs to technical field of pesticide, relate to a kind of contain Fluoxastrobin and the composite application of bactericide on the common disease of fruit tree of own azoles alcohol.
Technical background
Fluoxastrobin (Azoxystorbin) is a kind of brand-new β methoxy acrylic acid lipid bactericide, is by Syngenta Co.,Ltd's development product.Former medicine outward appearance is the light brown solid, no special odor.Molecular formula: C
22H
17N
3O
5, chemical name: (E)-2-{2-[6 (2-cyano-benzene oxygen) pyrimidine-4-base oxygen] phenyl }-the 3-methoxy acrylate.
Fluoxastrobin belongs to the mitochondrial respiratory inhibitor, has protection, treats and root out triple function, destroys synthetic its loss of life power that makes of energy of bacterium through the respiration that suppresses germ.Own azoles alcohol has good crop safety and very outstanding Environmental compatibility.Efficiently, wide spectrum, nearly all mycota (Ascomycotina, Basidiomycotina, Mastigomycotina and Deuteromycotina) disease such as powdery mildew, rust, glume blight, net blotch, downy mildew, rice blast etc. are all had good activity.Can be used for cauline leaf spraying, seed treatment, also can carry out soil treatment, be mainly used in cereal, paddy rice, peanut, grape, potato, fruit tree, vegetables, coffee etc.
Own azoles alcohol (Hexaconazole) is the triazole bactericidal agent by Syngenta Co.,Ltd's exploitation, molecular formula: C
14H
17C
12X
3O, chemical name: (RS)-2-(2,4 dichloro benzene base)-1-(1H-1,2,4-triazol-1-yl)-oneself-2-alcohol.
Own azoles alcohol is a kind of sterol demethylation inhibitor, destroys and stop the biosynthesis of the cell membrane important composition composition ergosterol of bacterium, causes cell membrane not form, and makes germ dead, has interior suction, protection and therapeutic activity.Can effectively prevent disease due to Ascomycetes, basidiomycetes and the imperfect fungus.Especially the disease that Basidiomycetes and Ascomycetes is caused as: powdery mildew, rust, scab, brown spot, anthracnose have excellent protection and eradicant action.
Frequent use and the drug-fast continuous increase of germ along with the conventional sterilization agent; The difficulty of disease control is increasing; And the use of single agent agricultural chemicals has certain limitation; Single agent agricultural chemicals of long-term single a kind of composition of use can be very fast cause drug-fast generation, strengthen the difficulty of prevention and cure of disease.Along with banning use of of high-toxic pesticide; Agricultural chemicals is formed complex preparation according to active ingredient become a kind of trend; It is the effective and rapid ground mode a kind of commonly used of present R and D novel agrochemical formulations; Fluoxastrobin and own azoles alcohol belong to the bactericide of two kinds of different effects modes, each other compositely can not produce conflict, but also have synergistic effect.
Composite about between these two kinds of active ingredients of Fluoxastrobin and own azoles alcohol do not see relevant report at present at home and abroad as yet.
Summary of the invention
The objective of the invention is to solve existing issue a kind of have synergistic effect, use cost is low, practical effect the is good bactericidal composition that contains Fluoxastrobin and own azoles alcohol are provided.
The present invention realizes through following technical scheme:
A kind of bactericidal composition that contains Fluoxastrobin and own azoles alcohol is characterized in that: the percentage by weight of Fluoxastrobin and own azoles alcohol is 5~80: 50~1.
The described bactericidal composition that contains Fluoxastrobin and own azoles alcohol, the active component percentage by weight after preferred is 10~70: 40~5.
The described Fluoxastrobin and the bactericidal composition of own azoles alcohol and known auxiliary agent and excipient of containing processed wetting powder, water dispersible granules, suspending agent, aqueous emulsion, microemulsion.
When processing wetting powder, composition comprises following constituent content: Fluoxastrobin 5~80%, own azoles alcohol 1~50%, dispersant 3~15%, wetting agent 3~12%, filler 8~88%.
Above-mentioned formulation material is mixed, in mixed cylinder, mix, after airslide disintegrating mill is pulverized, mix again, promptly can be made into the own azoles alcohol of Fluoxastrobin wetting powder product.
When processing water dispersible granules, composition comprises following constituent content: Fluoxastrobin 5~80%, own azoles alcohol 1~50%, dispersant 3~12%, wetting agent 3~8%, disintegrant 0~8%, thickener 0~5%, filler 8~88%.
Former medicine is obtained the particle diameter that needs with dispersant, wetting agent, disintegrant, filler etc. through comminution by gas stream, add other auxiliary agents such as thickener again, obtain the materials of granulating.It is interior through after granulation and the drying to expect that article are quantitatively sent the fluidized bed granulation dryer to, makes Fluoxastrobin diniconazole water dispersible granule product.
When processing suspending agent, composition comprises following constituent content: Fluoxastrobin 5~50%, own azoles alcohol 1~40%, dispersant 3~12%, wetting agent 2~10%, antifoaming agent 0.1~0.5%, thickener 0~2%, antifreeze 0~8%, deionized water surplus.
Dispersant in the above-mentioned formulation material, wetting agent, antifoaming agent, thickener, antifreeze are mixed through high speed shear, add former medicine, ball milling is 2~3 hours in ball mill, makes diameter of particle all below 5 μ m, makes Fluoxastrobin hexaconazole suspending agent product.
When processing aqueous emulsion, composition comprises following constituent content: Fluoxastrobin 5~50%, own azoles alcohol 1~40%, solvent 5~25%, emulsifier 1~10%, dispersant 2~8%, antifoaming agent 0.01~0.5%, thickener 0~2%, antifreeze 0~6%, deionized water surplus.
Above-mentioned formulation material Central Plains medicine, solvent added with emulsifier be in the same place, make and be dissolved into even oil phase; Water, antifreeze, antifoaming agent etc. are mixed, become the homogeneous water; Under high-speed stirred, water is added oil phase or oil phase is added water, make Fluoxastrobin hexaconazole aqueous emulsion product behind the good dispersion.
When processing microemulsion, composition comprises following constituent content: Fluoxastrobin 5~50%, own azoles alcohol 1~40%, solvent 5~25%, emulsifier 1~20%, antifreezing agent 0~10%, deionized water surplus.
Above-mentioned prescription Central Plains medicine, solvent, emulsifier fully are mixed into the oil phase of homogeneous transparent; Under agitation slowly add deionized water; Form WO emulsion,, make it rapid phase inversion and become oil-in-water type again through agitating heating; Be chilled to room temperature and make it to reach balance, make stable Fluoxastrobin hexaconazole microemulsion product through filtering.
Described emulsifier is selected from: farming breast 500
#(alkyl benzene calcium sulfonate), OP series phosphate (NPE phosphate), 600
#Phosphate (phenyl phenol polyoxy ethyl ether phosphate), styrene polyoxyethylene ether ammonium sulfate salt, alkyl biphenyl ether disulfonic acid magnesium salts, triethanolamine salt, farming breast 400
#(benzyl dimethyl phenol polyoxy ethyl ether), farming breast 600
#(phenyl phenol polyoxy ethyl ether), Nongru-700
#(alkylphenol-formaldehyde resin polyoxy ethyl ether), farming breast 1600
#(phenethyl phenol polyoxy ethyl polypropylene-base ether), ethylene oxide-propylene oxide block copolymer, OP series (NPE), By series (castor oil polyoxyethylene ether), farming breast 33
#In (alkylaryl polyoxyethylene polyoxypropylene ether), sapn series (sorbitan monostearate), tween series (sorbitan fatty acid ester APEO), the AEO series (the pure APEO of fat) one or more.
Described solvent is selected from: N, one or more in dinethylformamide, cyclohexanone, toluene, xylol, dimethyl sulfoxide (DMSO), ethanol, 3-methyl cyclohexanol ketenes, N-octylpyrrolidone, N-pyrrolidones, N-Methyl pyrrolidone, propyl alcohol, butanols, ethylene glycol, diethylene glycol, EGME, butyl ether, ethyl acetate, vegetable oil, the acetonitrile.
Described dispersant is selected from 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, in phonetic one or more of polyoxyethylene carboxylate, fatty acid glyceride polyoxyethylene.
Described wetting agent is selected from: one or more in lauryl sodium sulfate, DBSA, Nekal BX, wetting and penetrating agent F, spaonin powder, silkworm excrement, the soapberry powder.
Described disintegrant is selected from: one or more in bentonite, urea, ammonium sulfate, aluminium chloride, citric acid, succinic acid, the sodium bicarbonate.
Described binding agent is selected from: one or more in gum Arabic, white dextrin, carboxy-propyl cellulose, xanthan gum, methylcellulose, PAA, polyvinylpyrrolidone, PVPP, polyethylene glycol, polyvinyl alcohol, anhydrous succinic acid-styrene copolymerized, the polyvinyl acetate.
Described antifreeze is selected from: one or more in ethylene glycol, propane diols, the glycerine.
Described antifoaming agent is selected from: one or more in silicone oil, silicone compound, C10-20 saturated fat acid compounds, the C8-10 aliphatic alcohols compound.
Described thickener is selected from: one or more in xanthan gum, CMC, hydroxyethylcellulose, methylcellulose, Magnesiumaluminumsilicate, polyvinyl alcohol, the polyethylene glycol.
Described filler is selected from: one or more in kaolin, diatomite, bentonite, attapulgite, white carbon, starch, the precipitated calcium carbonate.
Composition of the present invention is mainly used in control alternaria leaf spot of apple, sigatoka, grape powdery mildew.
Beneficial effect of the present invention: the used Fluoxastrobin of (1) the present invention is a β methoxy acrylic acid lipid bactericide, and own azoles alcohol is triazole bactericidal agent; Both are mixed each other and can produce conflict.Reduce single agent usage amount of two kinds of agricultural chemicals, reduce the unfavorable effect that environment is produced.(2) the present invention makes up drug effect than each composition drug effect of use is high separately, and insecticidal spectrum is wider, has good synergistic effect.(3) be applicable to the control fruit diseases.Especially the disease of crop such as apple, banana; Mainly contain alternaria leaf spot of apple, sigatoka, grape powdery mildew.
Embodiment
The present invention is explained further that the percentage among the embodiment all is weight percentage below in conjunction with embodiment, the treatment dosage of biologically-active moiety is active constituent content, but the present invention is not limited thereto.
The embodiment of the invention is the method that adopts Toxicity Determination and field trial to combine.Pass through Toxicity Determination earlier, the synergy ratio (SR) after clear and definite two kinds of medicaments are composite by a certain percentage, SR<0.5 is an antagonism, and 0.5≤SR≤1.5 are summation action, and SR>1.5 are synergistic effect.On this basis, carry out field trial again.
Practice example one and implement the prescription example
The own azoles alcohol of embodiment 180% Fluoxastrobin wetting powder
Take by weighing Fluoxastrobin 55%, own azoles alcohol 25%, lignosulfonates 4%, polycarboxylate 5%, lauryl sodium sulfate 6%, white carbon 5%, mixture carries out comminution by gas stream, makes the own azoles alcohol of 80% Fluoxastrobin wetting powder.
The own azoles alcohol of embodiment 260% Fluoxastrobin wetting powder
Take by weighing Fluoxastrobin 40%, own azoles alcohol 20%, lignosulfonates 4%, polycarboxylate 3% soapberry powder 5%, kaolin 28%, mixture carries out comminution by gas stream, makes the own azoles alcohol of 60% Fluoxastrobin wetting powder.
Embodiment 370% Fluoxastrobin diniconazole water dispersible granule
Take by weighing Fluoxastrobin 53%, own azoles alcohol 17%, polycarboxylate 5%, silkworm excrement 4%, aluminium chloride 3%, gum Arabic 0.5%, starch 8%, kaolin 9.5%, the mixed 70% Fluoxastrobin diniconazole water dispersible granule that gets.
Embodiment 450% Fluoxastrobin diniconazole water dispersible granule
Take by weighing Fluoxastrobin 35%, own azoles alcohol 15%, alkyl benzene sulfonate calcium salt 5%, lauryl sodium sulfate 4%, ammonium sulfate 3%, starch 8%, kaolin 30%, the mixed 50% Fluoxastrobin diniconazole water dispersible granule that gets.
Embodiment 545% Fluoxastrobin hexaconazole suspending agent
Take by weighing that Fluoxastrobin 35%, own azoles alcohol 10%, aliphatic amine polyoxyethylene are phonetic 5%, spaonin powder 4%, silicone oil 0.1%, gum Arabic 0.3%, deionized water add to 100%, mixed 45% Fluoxastrobin hexaconazole suspending agent.
Embodiment 630% Fluoxastrobin hexaconazole suspending agent
Take by weighing Fluoxastrobin 24%, own azoles alcohol 6%, lignosulfonates 4%, Nekal BX 3%, C8-10 aliphatic alcohols compound 0.1%, hydroxyethylcellulose 0.2%, ethylene glycol 3%, deionized water and add to 100%, mixed 30% Fluoxastrobin hexaconazole suspending agent.
Embodiment 735% Fluoxastrobin hexaconazole aqueous emulsion
Take by weighing Fluoxastrobin 27%, own azoles alcohol 8%, ethanol 18%, N, N dimethyl formamide 7%, farming breast 500
#3%, lignosulfonates 2%, silicone oil 0.08%, deionized water add to 100%, the mixed 35% Fluoxastrobin hexaconazole aqueous emulsion that gets.
Embodiment 815% Fluoxastrobin hexaconazole aqueous emulsion
Take by weighing Fluoxastrobin 10%, own azoles alcohol 5%, ethanol 8%, N, N dimethyl formamide 3%, alkylphenol-formaldehyde resin polyoxy ethyl ether 4%, farming breast 500
#4%, OP-phosphate 3%, silicone oil 0.08%, gum Arabic 0.3%, ethylene glycol 2%, deionized water add to 100%, the mixed 15% Fluoxastrobin hexaconazole aqueous emulsion that gets.
Embodiment 940% Fluoxastrobin hexaconazole microemulsion
Take by weighing Fluoxastrobin 31%, own azoles alcohol 9%, cyclohexanone 10%, N-Methyl pyrrolidone 10%, vegetable oil 5%, farming breast 1600
#6%, the farming breast 600
#5%, silicone oil 2%, and deionized water adds to 100%, the mixed 40% Fluoxastrobin hexaconazole microemulsion that gets.
Embodiment 1020% Fluoxastrobin hexaconazole microemulsion
Take by weighing Fluoxastrobin 15%, own azoles alcohol 5%, N-crassitude 8%, N, N dimethyl formamide 7%, Nongru-700
#4%, the farming breast 1600
#3%, the farming breast 500
#2%, silicone oil 0.1%, polyvinyl alcohol 0.5%, deionized water adds to 100%, the mixed 20% Fluoxastrobin hexaconazole microemulsion that gets.
Practice example two: Fluoxastrobin and own azoles alcohol are mixed to the sigatoka Toxicity Determination
This EE is in plant protection institute of Shandong Agricultural University, and after the effective inhibition concentration scope of each medicament was confirmed in prerun, each medicament was established 5 dosage respectively by active constituent content and handled, and established the clear water contrast.Carry out with reference to " agricultural chemicals indoor bioassay test rule bactericide ", adopt the mycelial growth rate method to measure the virulence of medicament sigatoka.Measure colony diameter with the right-angled intersection method behind the 120h, calculate and respectively handle clean amount of growth, mycelial growth inhibition rate.Mycelial growth inhibition rate is converted into probit value (y), and liquor strength (μ g/mL) converts logarithm value (x) to, tries to achieve virulence regression equation (y=a+bx) with method of least squares, and calculates the EC of every kind of medicament thus
50Value.Concentration and synergy ratio (SR) are as shown in the table in the virulence regression equation of the Fluoxastrobin that is obtained, own azoles alcohol and composite comparison sigatoka, the inhibition:
Table 1 Fluoxastrobin, own azoles alcohol and use toxicity test analysis of results table with to sigatoka
Can know that by table 1 Fluoxastrobin, own azoles alcohol are to the EC of sigatoka
50Be respectively 2.16mg/L and 0.85mg/L.The virulence of own azoles alcohol is higher than the virulence of Fluoxastrobin.Fluoxastrobin and 1: 1,2: 1,3: 1,5: 1,7: 1 synergy ratio of own azoles alcohol proportioning are respectively 1.36,1.55,1.71,1.52,1.35; Both proportionings are to show as certain synergistic effect at 2: 1,3: 1,5: 1 o'clock, and it is comparatively reasonable to explain that own azoles alcohol and Fluoxastrobin were mixed in the scope at 2: 1~5: 1.
Embodiment uses three: Fluoxastrobin and own azoles alcohol are mixed and prevent and treat the alternaria leaf spot of apple test of pesticide effectiveness
This EE is plant protection unit in the Pucheng County, Shaanxi Province, and test medicine is researched and developed, provided by Shaanxi Pucheng County Meibang Pesticide Co., Ltd., contrast medicament 25% Fluoxastrobin suspending agent (commercial), 5% hexaconazole suspending agent (commercial).
Disease index is calculated in investigation before the medicine, and dispenser in per 7 days once is total to dispenser 4 times, investigates disease indexs in 7 days, 15 days, 30 days behind the last medicine and calculates preventive effect.Experimental result is as follows:
The own azoles alcohol of table 2, Fluoxastrobin and the control alternaria leaf spot of apple test of pesticide effectiveness that is mixed thereof
Handle medicament |
Extension rate |
7 days preventive effects (%) behind the last medicine |
15 days preventive effects (%) behind the last medicine |
30 days preventive effects (%) behind the last medicine |
The own azoles alcohol of 80% Fluoxastrobin wetting powder |
9000 times |
67.29 |
85.95 |
91.37 |
50% Fluoxastrobin diniconazole water dispersible granule |
6000 times |
65.42 |
86.71 |
90.72 |
30% Fluoxastrobin hexaconazole suspending agent |
4000 times |
69.32 |
88.46 |
89.29 |
15% Fluoxastrobin hexaconazole aqueous emulsion |
2500 times |
70.25 |
86.29 |
88.74 |
40% Fluoxastrobin hexaconazole microemulsion |
5000 times |
68.41 |
85.71 |
89.07 |
25% Fluoxastrobin suspending agent |
1200 times |
53.77 |
72.06 |
65.06 |
5% hexaconazole suspending agent |
1000 times |
62.43 |
82.74 |
79.39 |
Can find out by table 2, ability effectively preventing alternaria leaf spot of apple after Fluoxastrobin and own azoles alcohol are composite, control efficiency is superior to 1200 times of preventive effects of 25% Fluoxastrobin suspending agent, and is suitable with 1000 times of preventive effects of 5% hexaconazole suspending agent; 30 days preventive effects all are superior to contrasting medicament behind the last medicine, and the lasting period is long.In the test scope of medication, the target crop is not had harm, apple mildew is also had good preventive effect, 30 days preventive effect reaches more than 80% behind the last medicine.
Practice example four: Fluoxastrobin and own azoles alcohol are mixed and prevent and treat the sigatoka test of pesticide effectiveness
This EE is in one banana garden of Guangxi province Nanning suburban district, and test medicine is researched and developed, provided by Shaanxi Pucheng County Meibang Pesticide Co., Ltd., contrast medicament 25% Fluoxastrobin suspending agent (commercial), 5% hexaconazole suspending agent (commercial).
In the sigatoka initial stage of origination, investigation banana disease index, dispenser in per 7 days once is total to dispenser 5 times.Investigate disease indexs in 7 days, 14 days, 30 days behind the last medicine and calculate preventive effect.Result of the test is as shown in the table:
Table 3 Fluoxastrobin, own azoles alcohol and be mixed and prevent and treat the sigatoka test of pesticide effectiveness
Handle medicament |
Extension rate |
7 days preventive effects (%) behind the last medicine |
14 days preventive effects (%) behind the last medicine |
30 days preventive effects (%) behind the last medicine |
The own azoles alcohol of 60% Fluoxastrobin wetting powder |
5000 times |
67.25 |
85.47 |
89.41 |
70% Fluoxastrobin diniconazole water dispersible granule |
6000 times |
68.73 |
83.76 |
88.17 |
45% Fluoxastrobin hexaconazole suspending agent |
3500 times |
70.18 |
81.26 |
90.28 |
35% Fluoxastrobin hexaconazole aqueous emulsion |
3000 times |
69.11 |
82.74 |
91.32 |
20% Fluoxastrobin hexaconazole microemulsion |
2000 times |
74.43 |
80.06 |
92.15 |
25% Fluoxastrobin suspending agent |
1000 times |
66.85 |
78.37 |
84.41 |
5% hexaconazole suspending agent |
800 times |
65.37 |
75.09 |
81.58 |
Can find out by table 3, ability effectively preventing sigatoka after Fluoxastrobin and own azoles alcohol are composite, control efficiency all is superior to contrasting medicament.In the test scope of medication, the target crop there is not harm.Practice example five: Fluoxastrobin and own azoles alcohol are mixed and prevent and treat the grape powdery mildew test of pesticide effectiveness
This EE is Changan District Da Yu town in Shaanxi Province, and test medicine is researched and developed, provided by Shaanxi Pucheng County Meibang Pesticide Co., Ltd., contrast medicament 25% Fluoxastrobin suspending agent (commercial), 5% hexaconazole suspending agent (commercial).
In the grape powdery mildew initial stage of origination, the investigation disease index, dispenser in per 7 days once is total to dispenser 3 times.Investigate disease indexs in 7 days, 14 days behind the last medicine and calculate preventive effect.Result of the test is as shown in the table:
Table 4 Fluoxastrobin, own azoles alcohol and the control grape powdery mildew test of pesticide effectiveness that is mixed thereof
Handle medicament |
Extension rate |
7 days preventive effects (%) behind the last medicine |
14 days preventive effects (%) behind the last medicine |
The own azoles alcohol of 60% Fluoxastrobin wetting powder |
5000 times |
81.36 |
93.76 |
50% Fluoxastrobin diniconazole water dispersible granule |
4000 times |
82.54 |
92.65 |
30% Fluoxastrobin hexaconazole suspending agent |
2500 times |
81.67 |
93.47 |
15% Fluoxastrobin hexaconazole aqueous emulsion |
1500 times |
80.47 |
90.29 |
20% Fluoxastrobin hexaconazole microemulsion |
2000 times |
82.67 |
91.36 |
25% Fluoxastrobin suspending agent |
1000 times |
78.09 |
85.44 |
5% hexaconazole suspending agent |
800 times |
80.39 |
86.26 |
Can find out by table 4, ability effectively preventing grape powdery mildew after Fluoxastrobin and own azoles alcohol are composite, control efficiency all is superior to contrasting medicament.In the test scope of medication, the target crop there is not harm.