CN103229771A - Fluoxastrobin-containing fungicide combination - Google Patents
Fluoxastrobin-containing fungicide combination Download PDFInfo
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Abstract
The present invention relates to a fluoxastrobin-containing fungicide combination comprising the following components in percentage by weight: 1-70% of an active ingredient A, 1-90% of an active ingredient B; the active ingredient A is the fluoxastrobin, while the active ingredient B is one selected from propiconazole, epoxiconazole, prothioconazole, fluxapyroxad, ametoctradin, sedaxane, and fluopyram. Being compounded by adopting fungicide compounds with different action mechanisms, the fluoxastrobin-containing fungicide combination provided by the present invention effectively solves the difficult problem of rapid resistance development of triazole fungicides; and has good systemic property and effectiveness persistence, thus greatly reducing the use amount of pesticides and the agricultural cost. The fluoxastrobin-containing fungicide combination provided by the present invention has relatively good control effects on a variety of fungal diseases of vegetables, flowers, fruit trees, cotton, graminaceous cereal crops, and oil crops.
Description
Technical field
The present invention relates to pesticide field, especially a kind of microbicide compositions that contains fluoxastrobin.
Background technology
Bactericide is that the consumption of bactericide is big, the scope of application is wide for a class agricultural chemicals of preventing and treating the plant disease that is caused by various pathogenic microorganisms.Bactericide shared share in agricultural chemicals market is increasing, and single sterilization component is used and had many problems, as: development of drug resistance is fast, drug effect is poor, restricted application etc.Pesticide resistance refers to pathogenic microorganism etc. for pharmaceutically-active tolerance, and drug resistance is in case produce, and the effect of medicine just obviously descends.The single bactericide of long-term use can make pathogenic microorganism develop immunity to drugs, and reduces drug effect.The sterilization mechanism difference of every kind of bactericide, its pathogenic microorganism that is suitable for killing are also different, and therefore the scope of application of single bactericide is limited.Mostly existing bactericide be a kind of or a class disease is effective, do not have control efficiency or effect bad for other diseases; A kind of crop can get different diseases, therefore just needs to adopt different bactericide to prevent and treat; Different crops can get different diseases, also needs to adopt different bactericide to prevent and treat.Therefore, when multiple pathogenic microorganism exists jointly, need to use the various sterilization agent just can reach the effect of killing multiple pathogenic microorganism simultaneously.
Summary of the invention
In view of this, be necessary at the problems referred to above, a kind of microbicide compositions that contains fluoxastrobin that the various crop multiple diseases is had preventive and therapeutic effect is provided.
To achieve these goals, the present invention adopts following technical scheme.
A kind of microbicide compositions that contains fluoxastrobin, contain the component of following weight percentage:
Effective constituents A 1-70%,
Active ingredient B 1-90%;
Described effective constituents A is fluoxastrobin, and described active ingredient B is a kind of in propiconazole, fluorine ring azoles, prothioconazoles, fluorine azoles bacterium acid amides, azoles mepanipyrim, fluorine azoles ring bacterium amine, the fluorine pyrrole bacterium acid amides.
A kind of preferred embodiment that contains the microbicide compositions of fluoxastrobin as the present invention, contain the component of following weight percentage:
Effective constituents A 2-45%,
Active ingredient B 4-65%.
A kind of preferred embodiment that contains the microbicide compositions of fluoxastrobin as the present invention, the described microbicide compositions that contains fluoxastrobin also comprises acceptable assistant on the agricultural chemicals, and the described microbicide compositions that contains fluoxastrobin contains the component of following weight percentage:
Effective constituents A+active ingredient B 2-95%,
The auxiliary agent surplus.
A kind of more preferably embodiment that contains the microbicide compositions of fluoxastrobin as the present invention, the described microbicide compositions that contains fluoxastrobin also comprises acceptable assistant on the agricultural chemicals, and the described microbicide compositions that contains fluoxastrobin contains the component of following weight percentage:
Effective constituents A+active ingredient B 5-70%,
The auxiliary agent surplus.
A kind of preferred embodiment that contains the microbicide compositions of fluoxastrobin as the present invention, the described microbicide compositions that contains fluoxastrobin are that agricultural chemicals is used upward acceptable any one formulation.
A kind of preferred embodiment that contains the microbicide compositions of fluoxastrobin as the present invention, the described microbicide compositions that contains fluoxastrobin is suspending agent, aqueous emulsion, water dispersible granules, microemulsion or wetting powder.
The microbicide compositions that the present invention contains fluoxastrobin adopts the bactericide compounded of the different mechanisms of action, efficiently solves the fast difficult problem of triazole bactericidal agent resistance development; Interior absorption, lasting effect are good, have significantly reduced the agricultural chemicals access times, have reduced the agricultural chemicals usage amount, reduce agricultural cost.The microbicide compositions that the present invention contains fluoxastrobin all has favorable effect to the multiple fungal disease of vegetables, flowers, fruit tree, cotton, grass family cereal crops, oil crop.
Embodiment
The invention provides a kind of microbicide compositions that contains fluoxastrobin, clearer, clear and definite for making purpose of the present invention, technical scheme and effect, below the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
The percentage that each component is used among the present invention all is weight percentage.Auxiliary agent among the present invention is auxiliary agent commonly used in the agricultural chemicals, comprises filler, solvent, wetting agent, bleeding agent, defoamer, thickener etc.
A kind of microbicide compositions that contains fluoxastrobin, contain the component of following weight percentage:
Effective constituents A 1-70%,
Active ingredient B 1-90%;
Described effective constituents A is fluoxastrobin, and described active ingredient B is a kind of in propiconazole, fluorine ring azoles, prothioconazoles, fluorine azoles bacterium acid amides, azoles mepanipyrim, fluorine azoles ring bacterium amine, the fluorine pyrrole bacterium acid amides.
Fluoxastrobin, molecular formula are C
21H
16C
lF
3N
4O
5, chemical formula is:
Fluoxastrobin is methoxy acrylic bactericide, the mitochondrial respiratory inhibitor.Fluoxastrobin has quick-acting and long double grading of lasting period; no matter grow as spore germination, germ tube in early days and intrusion leaf portion at fungal infection; still growth period of hypha can both provide extraordinary protection and therapeutic action, but infects the most effective to spore germination and initial stage.Fluoxastrobin also has the bactericidal activity of wide spectrum, and Ascomycetes, Basidiomycetes, Oomycete and Fungi Imperfecti disease (tens of kinds of diseases such as rust, clever blessing disease, net blotch, powdery mildew, downy mildew) are all had good active.The systemic activity of the excellence that fluoxastrobin has, it can be by fast Absorption, and can transmit to the top equably in leaf portion, so have good resistance of rainwater washing against ability.During as seed treatment, though having seedling, kind biography and soil-borne disease, fluoxastrobin well kills and lasting effect.
Propiconazole is a kind of interior absorption triazole bactericidal agent with protection and therapeutic action; can be absorbed by root, stem, leaf portion; and can be soon in the plant strain body to conduction; the control sac fungi; the disease that basidiomycetes and imperfect fungus cause; particularly to take-all, powdery mildew, rust, root rot, water rice bakanae disease, sigatoka have the better prevention effect.
Fluorine ring azoles is triazole bactericidal agent, and molecular formula is C
17H
13C
lFN
3O.Field control effectiveness test shows that fluorine ring azoles has good preventive and therapeutic effect to ten multiple diseases such as a series of cereal crops such as damping off, powdery mildew, eyeprint diseases; not only have good protection, treat and root out activity, and inhale and preferable residual activity in having.
Prothioconazoles is the triazole thioketone wide-spectrum bactericide that Bayer is developed.Since 2004, registered in a plurality of countries.Prothioconazoles can be prevented and treated powdery mildew, banded sclerotial blight, fusarium wilt, leaf spot, rust, stalk break, net blotch, moire disease of wheat and barley etc., can also prevent and treat the soil-borne disease of oily Lay and peanut, as stalk break, and main foliage disease, as gray mold, black spot, brown spot, balck shank, stalk break and rust etc.The mechanism of action of prothioconazoles is that the precursor that suppresses sterol in the fungi synthesizes.Prothioconazoles has good systemic activity, excellent protection, treats and root out activity, and the lasting period is long.Under using dosage, the activity of prothioconazoles is better than or equals conventional sterilization agent such as fluorine ring azoles, Tebuconazole, cyprodinil etc.
The azoles mepanipyrim is brand-new triazolo pyrimidine series bactericidal agent, and the downy mildew of downy mildew of garpe, potato late blight and pumpkin, cucumber, lettuce, muskmelon, potato and tomato and fusarium wilt etc. are had good preventive effect.
Fluorine azoles ring bacterium amine (sedaxane) is just to reach earlier the first compound that aims at the seed treatment exploitation, be used for crops such as wheat, barley, oat, rye, soybean and rape and prevent and treat loose kernel smut, and multiple seedling stage disease, especially damping off.
Fluorine azoles bacterium acid amides belongs to Carbox amide in chemical constitution, is the bactericide that plays a role with as succinic acid dehydrogenation inhibitor.Field trial shows, at the principal disease of cereal, soybean, corn, rape and characteristic crops, is very effective and the strong fungicide of selectivity.The bactericide fluxapyroxad(fluorine azoles bacterium acid amides of BASF AG exploitation) get the Green Light in France and Germany, it is that the compound formulation product [fluxapyroxad(fluorine azoles bacterium acid amides) 62.5g/L+epoxiconazole(fluorine ring azoles) 62.5g/L] of trade name is used on the cereal with Adexar.
The regional spring and summer high temperature wet weather in south China, rainy season is frequent, and crop pest takes place serious, multiple diseases takes place simultaneously often in the field, brings difficulty, fluoxastrobin to have interior absorption well to peasant household's control, range of application be can enlarge by reasonably composite, its lasting period and drug effect improved.
The microbicide compositions that contains fluoxastrobin as the present invention contains a kind of preferred embodiment of the microbicide compositions of fluoxastrobin, contains the component of following weight percentage:
Effective constituents A 2-45%,
Active ingredient B 4-65%.
The microbicide compositions that contains fluoxastrobin as the present invention contains a kind of preferred embodiment of the microbicide compositions of fluoxastrobin, the microbicide compositions that the described microbicide compositions that contains fluoxastrobin contains fluoxastrobin also comprises acceptable assistant on the agricultural chemicals, and the described microbicide compositions that contains fluoxastrobin contains the component of following weight percentage:
Effective constituents A+active ingredient B 2-95%,
The auxiliary agent surplus.
The microbicide compositions that contains fluoxastrobin as the present invention contains a kind of more preferably embodiment of the microbicide compositions of fluoxastrobin, the microbicide compositions that the described microbicide compositions that contains fluoxastrobin contains fluoxastrobin also comprises acceptable assistant on the agricultural chemicals, and the described microbicide compositions that contains fluoxastrobin contains the component of following weight percentage:
Effective constituents A+active ingredient B 5-70%,
The auxiliary agent surplus.
The microbicide compositions that contains fluoxastrobin as the present invention contains a kind of preferred embodiment of the microbicide compositions of fluoxastrobin, and the microbicide compositions that the described microbicide compositions that contains fluoxastrobin contains fluoxastrobin is that agricultural chemicals is used and gone up acceptable any one formulation.
The microbicide compositions that contains fluoxastrobin as the present invention contains a kind of preferred embodiment of the microbicide compositions of fluoxastrobin, and the microbicide compositions that the described microbicide compositions that contains fluoxastrobin contains fluoxastrobin is suspending agent, aqueous emulsion, water dispersible granules, microemulsion or wetting powder.
Formulation embodiment 120% fluoxastrobin prothioconazoles wetting powder
The described microbicide compositions that contains fluoxastrobin is made up of the component of following weight percentage: fluoxastrobin 4%, prothioconazoles 16%, wetting agent 6%, dispersant 4%, filler surplus, raw material mixes behind airslide disintegrating mill again, namely can be made into the wetting powder that the present invention contains the microbicide compositions of fluoxastrobin.
Formulation embodiment 240% fluoxastrobin azoles mepanipyrim wetting powder
The described microbicide compositions that contains fluoxastrobin is made up of the component of following weight percentage: fluoxastrobin 20%, azoles mepanipyrim 20%, wetting agent 5%, dispersant 5%, warning colouration 2%, filler surplus, raw material mixes behind airslide disintegrating mill again, namely can be made into the wetting powder that the present invention contains the microbicide compositions of fluoxastrobin.
Formulation embodiment 340% fluoxastrobin propiconazole wetting powder
The described microbicide compositions that contains fluoxastrobin is made up of the component of following weight percentage: fluoxastrobin 10%, propiconazole 30%, wetting agent 8%, dispersant 4%, filler surplus.Raw material mixes behind airslide disintegrating mill again, namely can be made into the wetting powder that the present invention contains the microbicide compositions of fluoxastrobin.
Formulation embodiment 416% fluoxastrobin propiconazole emulsifiable concentrate
The described microbicide compositions that contains fluoxastrobin is made up of the component of following weight percentage: fluoxastrobin 8%, propiconazole 8%, emulsifier 5%, dispersant 5%, solvent 5%, cosolvent 4%, methyl oleate surplus.After former medicine and solvent stir, add emulsifier, stir, namely can be made into the missible oil that the present invention contains the microbicide compositions of fluoxastrobin.
Formulation embodiment 535% fluoxastrobin prothioconazoles suspending agent
The described microbicide compositions that contains fluoxastrobin is made up of the component of following weight percentage: fluoxastrobin 10%, prothioconazoles 15%, wetting agent 6%, dispersant 4%, antifreezing agent 10%, thickener 0.4%, defoamer 0.5%, preservative 0.5%, water surplus.Earlier former medicine, wetting agent, dispersant, antifreezing agent and preservative are mixed, mix through high speed shear, at sand mill 1.0～1.5h, under low speed, add defoamer and thickener and water, make the suspending agent preparation that contains the microbicide compositions of fluoxastrobin of the present invention.
Formulation embodiment 67.5% fluoxastrobin azoles mepanipyrim suspending agent
The described microbicide compositions that contains fluoxastrobin is made up of the component of following weight percentage: fluoxastrobin 3%, azoles mepanipyrim 4.5%, wetting agent 5%, dispersant 4%, antifreezing agent 5%, thickener 0.2%, stabilizing agent 3%, defoamer 0.5%, preservative 0.5%, water surplus.Earlier former medicine, wetting agent, dispersant, antifreezing agent and preservative are mixed, mix through high speed shear, at sand mill 1.0～1.5h, under low speed, add defoamer and thickener and water, make the suspending agent preparation that contains the microbicide compositions of fluoxastrobin of the present invention.
Formulation embodiment 725% fluoxastrobin propiconazole suspending agent
The described microbicide compositions that contains fluoxastrobin is made up of the component of following weight percentage: fluoxastrobin 10%, propiconazole 15%, wetting agent 6%, dispersant 4%, antifreezing agent 10%, thickener 0.2%, defoamer 0.5%, preservative 0.5%, water surplus.Earlier former medicine, wetting agent, dispersant, antifreezing agent and preservative are mixed, mix through high speed shear, at sand mill 1.0～1.5h, under low speed, add defoamer and thickener and water, make the suspending agent preparation that contains the fluoxastrobin microbicide compositions of the present invention.
Formulation embodiment 860% fluoxastrobin prothioconazoles water dispersible granules
The described microbicide compositions that contains fluoxastrobin is made up of the component of following weight percentage: fluoxastrobin 15%, prothioconazoles 45%, wetting agent 6%, dispersant 45%, disintegrant 6%, filler surplus.Mixing behind airslide disintegrating mill, is mediated granulation, drying, is sieved, and namely makes the water dispersible granules that the fluoxastrobin microbicide compositions is arranged of the present invention.
Formulation embodiment 950% fluoxastrobin azoles mepanipyrim water dispersible granules
The described microbicide compositions that contains fluoxastrobin is made up of the component of following weight percentage: fluoxastrobin 20%, prothioconazoles 30%, wetting agent 6%, dispersant 4%, disintegrant 6%, filler surplus.Mixing behind airslide disintegrating mill, is mediated granulation, drying, is sieved, and namely makes the water dispersible granules that the fluoxastrobin microbicide compositions is arranged of the present invention.
Formulation embodiment 1040% fluoxastrobin propiconazole water dispersible granules
The described microbicide compositions that contains fluoxastrobin is made up of the component of following weight percentage: fluoxastrobin 10%, propiconazole 30%, wetting agent 6%, dispersant 4%, disintegrant 6%, filler surplus.Mixing behind airslide disintegrating mill, is mediated granulation, drying, is sieved, and namely makes the water dispersible granules that the fluoxastrobin microbicide compositions is arranged of the present invention, is used for seed dressing.
Formulation embodiment 118.5% fluoxastrobin prothioconazoles propiconazole water dispersible granules
The described microbicide compositions that contains fluoxastrobin is made up of the component of following weight percentage: fluoxastrobin 2.5%, prothioconazoles 6%, propiconazole 10%, wetting agent 6%, dispersant 4%, disintegrant 6%, filler surplus.Mixing behind airslide disintegrating mill, is mediated granulation, drying, is sieved, and namely makes the water dispersible granules that the fluoxastrobin microbicide compositions is arranged of the present invention, is used for seed dressing.
Formulation embodiment 1215% fluoxastrobin propiconazole emusion in water
The described microbicide compositions that contains fluoxastrobin is made up of the component of following weight percentage: fluoxastrobin 5%, prothioconazoles 10%, cosolvent 5%, wetting agent 6%, dispersant 4%, sticker 2%, thickener 0.5%, preservative 2%, antifreezing agent 10%, water surplus.Other insecticides adjuvant such as part water, antifreezing agent, thickener, preservative, sticker is mixed into uniform water; In high-speed stirred, the former medicine of oil phase and cosolvent are added water, slowly add water until reaching the phase inversion point, open clipper and carry out high speed shear, and add remaining water, shear 25～40min, form the aqueous emulsion of oil-in-water type, namely make the aqueous emulsion of bactericidal composition of the present invention.
Formulation embodiment 138% fluoxastrobin azoles mepanipyrim microemulsion
The described microbicide compositions that contains fluoxastrobin is made up of the component of following weight percentage: fluoxastrobin 4%, prothioconazoles 4%, cosolvent 10%, emulsifier 16%, antifreezing agent 10%, water surplus.With former medicine, emulsifier, cosolvent mixing, slowly add water and antifreezing agent mixes, namely make the aqueous emulsion of bactericidal composition of the present invention.
Described emulsifier is selected from any one or more mixtures formed with arbitrary proportion in calcium dodecyl benzene sulfonate, aliphatic acid polyethenoxy ether, alkylphenol polyoxyethylene sulfosuccinate, styryl phenol APEO, polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy base ester, the polyoxyethylene aliphatic alcohol ether.
Described dispersant is selected from one or both in lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkyl benzene sulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, polyoxyethylene carboxylate, the fatty acid glyceride APEO.
Described wetting agent is selected from lauryl sodium sulfate, calcium dodecyl benzene sulfonate, draws back powder, in the alkylnaphthalene sulfonate, spaonin powder, silkworm excrement one or more.
Described thickener is selected from one or more in xanthans, CMC, hydroxyethylcellulose, methylcellulose, Magnesiumaluminumsilicate, the white carbon.
Described solvent is any one or more mixed solvents formed with arbitrary proportion in dimethylbenzene or biodiesel, toluene, diesel oil, methyl alcohol, ethanol, n-butanol, isopropyl alcohol, turpentine oil, solvent naphtha, dimethyl formamide, dimethyl sulfoxide (DMSO), water, methyl oleate, fatty acid methyl ester, soybean oil, turpentine oil, the sec-butyl acetate equal solvent.
Described antifreeze can be any in ethylene glycol, glycerine, propane diols, glycerine, polyethylene glycol or the isopropyl alcohol.
Described carrier, filler can be that one or more mixing in white carbon, precipitated calcium carbonate, potter's clay, attapulgite, kaolin, diatomite, bentonite, sepiolite or the talcum powder are used.
Described disintegrant can be a kind of in sodium alginate, sodium carboxymethyl starch, sulfuric acid amine, urea or the carbonating calcium.
Described defoamer is selected from a kind of in silicone, C8-10 fatty alcohol, capric acid, stearic acid and the amide-type.
Described binding agent is selected from starch, dextrin, gum Arabic, sodium sulphate, polyvinyl alcohol, polyethylene glycol, rosin or the sodium silicate one or more and uses with.
Described warning colouration is selected from iron oxide, a kind of in titanium oxide, Prussian blue, A Lizhalin, azo dyes, metal phthalocyanine or the kiton colors.
Described preservative is selected from Sodium Benzoate, polyformaldehyde, sorbitol, formalin, citric acid or a kind of in the yl benzoic acid methyl esters.
Indoor virulence test embodiment 1
(1) test medicine preparation
The former medicine of fluoxastrobin and prothioconazoles is used acetone solution respectively, with containing the 1%(percentage by volume) distilled water diluting of acetone, be mixed with the mother liquor of 1000mg/L, in mensuration, all prepare single agent or mixture with this mother liquor.Fluoxastrobin and the prothioconazoles weight content ratio that is mixed was respectively 1: 6,2: 5,1: 1,2: 5,6: 1, totally 5 combinations that are mixed, and being mixed in proportion with 1000mg/L fluoxastrobin and prothioconazoles mother liquor respectively forms.
(2) determination of test method
Adopt mycelial growth to suppress method, computing formula is calculated according to formula (1).
Growth inhibition ratio (%)=[(the contrast colony diameter-5mm)-(the processing colony diameter-5mm)]/(the contrast colony diameter-5mm) * 100 ... (1)
According to the probit value conversion table, will suppress percentage and be converted into the inhibiting rate probit value, be abscissa with the concentration logarithm, the inhibiting rate probit value is ordinate, calculates the virulence regression equation of medicament, obtains the EC50 value.
The co-toxicity coefficient of microbicide compositions (CTC value) calculates by formula (2), formula (3) and formula (4):
ATI=S/M×100…………………………………………………………………………（2）
TTI=TI
A×P
A+TI
B×P
B…………………………………………………（3）
CTC=ATI/TTI×100……………………………………………………………………（4）
Co-toxicity coefficient CTC 〉=120 of microbicide compositions show as synergistic effect, and CTC≤80 show as antagonism, and 80＜CTC＜120 show as summation action.
(3) interpretation of result
Table 1 fluoxastrobin and prothioconazoles composite bactericide composition are to the co-toxicity test of downy mildew of garpe pathogen
Active ingredient a is fluoxastrobin, and active ingredient b is prothioconazoles.
Show according to above indoor virulence test measurement result, fluoxastrobin and prothioconazoles by weight percentage composition be 5: 2,1: 1,2: 5, during 6:1, synergistic effect is preferably all arranged, wherein with fluoxastrobin: prothioconazoles is that 2: 5 o'clock co-toxicity coefficient is up to 186.40, and synergistic effect is best.
Indoor virulence test embodiment 2
(1) test medicine preparation
Compounding method for medicament is identical with embodiment 1.Fluoxastrobin and azoles mepanipyrim weight content ratio were respectively 1: 4,2: 3,1: 1,3: 2,4: 1, totally 5 combinations that are mixed.
Test processing method and experimental data statistical analysis technique are similar with indoor virulence test embodiment 1.
(2) result and analysis
Table 2 fluoxastrobin and azoles mepanipyrim composite bactericide composition are to the co-toxicity of powdery mildew of cucumber pathogen
Active ingredient a is fluoxastrobin, and active ingredient b is the azoles mepanipyrim.
Show according to above indoor virulence test measurement result, fluoxastrobin and azoles mepanipyrim percentage composition by weight are 1: 4,2: 3,1: 1,3: 2 o'clock, synergistic effect is preferably all arranged, wherein with fluoxastrobin: the azoles mepanipyrim is that 1: 1 o'clock co-toxicity coefficient is up to 170.51, and synergistic effect is best.
Indoor virulence test embodiment 3
(1) test medicine preparation
Compounding method for medicament is identical with embodiment 1.Fluoxastrobin and propiconazole weight content ratio were respectively 1: 4,2: 3,1: 1,3: 2,4: 1, totally 5 combinations that are mixed.
Test processing method and experimental data statistical analysis technique are similar with indoor virulence test embodiment 1.
(2) result and analysis
As shown in table 3, fluoxastrobin and propiconazole all have synergistic effect preferably when percentage composition is 1:4,1:3,2:3,1:1,3:2 by weight, and wherein with fluoxastrobin: propiconazole is that 1: 3 o'clock co-toxicity coefficient is up to 188.44, and synergistic effect is best.Therefore, choosing fluoxastrobin and propiconazole is the mixture preparation of 1: 3 left and right sides scope by weight, and further field control effectiveness test is to estimate its field practical application effect.
Table 3 fluoxastrobin and propiconazole compound bactericide composition are to the co-toxicity of sigatoka pathogen
Active ingredient a is fluoxastrobin, and active ingredient b is propiconazole.
Field efficacy embodiment 1
(1) test method
Experimental field be located in the Jin Duzhen of the Guangdong Province banana garden and carry out, the spraying times of this test is 3 times, carry out the investigation of state of an illness radix before the medicine, the 1st spraying time is on June 13rd, 2012, the 2nd spraying time is on June 27th, 2012, the 3rd dispenser on July 11st, 2012, take the dispenser of foliar spray method, to squirt leave dual sides degree of being.
Investigation method is every residential quarter random inspection 6 strains, and every strain banana is investigated 10 leaves (not opening lobus cardiacus disregards) from top to bottom, records total number of sheets, the sick number of sheets and sick level, and the grade scale of disease index is:
0 grade, anosis;
1 grade, lesion area accounts for below 5% of one-piece blade area;
3 grades, lesion area accounts for 6%～15% of one-piece blade area;
5 grades, lesion area accounts for 16%～25% of one-piece blade area;
7 grades, lesion area accounts for 26%～50% of one-piece blade area;
9 grades, lesion area accounts for more than 50% of one-piece blade area.
(2) control time and number of times
Test is investigated 3 times altogether, i.e. 7 days, 15 days investigation disease indexs behind disease index investigation before the medicine, the 3rd medicine calculate preventive effect according to formula (5)-(7).
Sick leaf rate (the %)=sick number of sheets/investigate total number of sheets * 100 ... (5)
Disease index=Σ (the sick numbers of sheets at different levels * relative level numerical value)/(investigating total number of sheets * 9) * 100 ... (6)
Control efficiency (%)=[1-(disease index behind disease index before the blank district medicine * treatment region medicine)/(disease index before disease index behind the blank district medicine * treatment region medicine)] * 100 ... (7)
(3) result and analysis
40% fluoxastrobin and propiconazol disinfectant composition are as shown in table 4 to the field control effect of sigatoka.
Each chemicals treatment of table 4 is to the control efficiency of sigatoka
As shown in Table 4, the effect that 40% fluoxastrobin and propiconazole compound combination prevent and treat sigatoka is more remarkable, under the dosage of 10g/ mu, 7 days, 15 days preventive effects 91.17% the highest, 93.13% after the medication, and single agent 10% fluoxastrobin missible oil, 7 days preventive effects the highest are only for being that preventive effect descends after 82.13%, 15 day after medication; 7 days preventive effect is up to 86.55% after the 25% propiconazole emulsifiable concentrate dispenser, and both will be higher than two kinds of single agent by the actual field efficacy in composite back, and both prolong the composite back lasting period, can reduce the medication number of times, reduce cost.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (6)
1. a microbicide compositions that contains fluoxastrobin is characterized in that, contains the component of following weight percentage:
Effective constituents A 1-70%,
Active ingredient B 1-90%;
Described effective constituents A is fluoxastrobin, and described active ingredient B is a kind of in propiconazole, fluorine ring azoles, prothioconazoles, fluorine azoles bacterium acid amides, azoles mepanipyrim, fluorine azoles ring bacterium amine, the fluorine pyrrole bacterium acid amides.
2. the microbicide compositions that contains fluoxastrobin according to claim 1 is characterized in that, contains the component of following weight percentage:
Effective constituents A 2-45%,
Active ingredient B 4-65%.
3. the microbicide compositions that contains fluoxastrobin according to claim 1, it is characterized in that, the described microbicide compositions that contains fluoxastrobin also comprises acceptable assistant on the agricultural chemicals, and the described microbicide compositions that contains fluoxastrobin contains the component of following weight percentage:
Effective constituents A+active ingredient B 2-95%,
The auxiliary agent surplus.
4. the microbicide compositions that contains fluoxastrobin according to claim 1 is characterized in that, the described microbicide compositions that contains fluoxastrobin contains the component of following weight percentage:
Effective constituents A+active ingredient B 5-70%,
The auxiliary agent surplus.
5. the microbicide compositions that contains fluoxastrobin according to claim 1 is characterized in that, the described microbicide compositions that contains fluoxastrobin is that agricultural chemicals is used upward acceptable any one formulation.
6. the microbicide compositions that contains fluoxastrobin according to claim 1 is characterized in that, the described microbicide compositions that contains fluoxastrobin is suspending agent, aqueous emulsion, water dispersible granules, microemulsion or wetting powder.
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| CN2013101249055A Pending CN103229771A (en) | 2013-04-11 | 2013-04-11 | Fluoxastrobin-containing fungicide combination |
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Cited By (4)
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| CN106259374A (en) * | 2016-08-20 | 2017-01-04 | 田文华 | A kind of containing fluoxastrobin with the bactericidal composition of tetraconazole |
| CN107279157A (en) * | 2017-05-08 | 2017-10-24 | 江苏富田农化有限公司 | A kind of bactericidal composition and its application containing fluoxastrobin and prothioconazoles |
| JP2017537093A (en) * | 2014-11-26 | 2017-12-14 | モンサント テクノロジー エルエルシー | Methods and compositions for the control of fungal pathogens in crops |
| CN114403153A (en) * | 2022-03-01 | 2022-04-29 | 陕西西大华特科技实业有限公司 | Seed treatment agent containing fluoxastrobin, benziothiazolinone and prothioconazole and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017537093A (en) * | 2014-11-26 | 2017-12-14 | モンサント テクノロジー エルエルシー | Methods and compositions for the control of fungal pathogens in crops |
| CN106259374A (en) * | 2016-08-20 | 2017-01-04 | 田文华 | A kind of containing fluoxastrobin with the bactericidal composition of tetraconazole |
| CN107279157A (en) * | 2017-05-08 | 2017-10-24 | 江苏富田农化有限公司 | A kind of bactericidal composition and its application containing fluoxastrobin and prothioconazoles |
| CN114403153A (en) * | 2022-03-01 | 2022-04-29 | 陕西西大华特科技实业有限公司 | Seed treatment agent containing fluoxastrobin, benziothiazolinone and prothioconazole and application thereof |
| CN114403153B (en) * | 2022-03-01 | 2023-08-22 | 陕西西大华特科技实业有限公司 | Seed treatment agent containing fluoxastrobin, benziothiazolinone and prothioconazole and application thereof |
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