CN105475288A - Bactericidal composition containing trifloxystrobin and ethirimol - Google Patents
Bactericidal composition containing trifloxystrobin and ethirimol Download PDFInfo
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- CN105475288A CN105475288A CN201610030650.XA CN201610030650A CN105475288A CN 105475288 A CN105475288 A CN 105475288A CN 201610030650 A CN201610030650 A CN 201610030650A CN 105475288 A CN105475288 A CN 105475288A
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- phonetic phenol
- bacterium ester
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- powdery mildew
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
- A01N37/50—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids the nitrogen atom being doubly bound to the carbon skeleton
Abstract
The invention belongs to the field of plant protection and relates to a bactericidal composition containing trifloxystrobin and ethirimol. In the composition, the mass ratio of trifloxystrobin to ethirimol is (1-40):(40-1), and the total mass of trifloxystrobin and ethirimol is 1-90% of the total mass of the composition. The composition can be made into missible oil, a suspending agent, wettable powder, water dispersible granules, a microemulsion, an emulsion in water, microcapsules or water. The composition can also contain one or more of chitosan oligosaccharide, a bactericidal agent, fertilizer ingredients and a plant growth regulator, is used for spraying, root-irrigation, seed dressing or broadcasting and is used for preventing and treating one or more diseases of plant.
Description
Technical field
The present invention relates to the bactericidal composition containing oxime bacterium ester and the phonetic phenol of second, belong to plant protection field, composition is for preventing and treating the powdery mildew, leaf spot, scab, bakanae disease, downy mildew, brown spot etc. of grain, cotton, oil plant, fruit tree, vegetables, flowers etc.
Background technology
Oxime bacterium ester, chemical name: (2Z)-2-methoxyimino-2-[2-[[1-[3-(trifluoromethyl) phenyl] ethyleneimino] oxygen methyl] phenyl] methyl acetate, methoxy acrylic wide spectrum low-toxicity bactericide, stoped the synthesis of cell ATP by the electron transmission pinned between cytochrome b and C1, thus restrain its mitochondrial respiratory and play bacteriostasis.Oxime bacterium ester is the fungicides that the class successfully developed as bactericide lead compound from natural products Strobilurin is new, characteristics such as having efficient, wide spectrum, protection, treat, root out, permeate, systemic activity, resistance of rainwater washing against, lasting period are long.Bacterial strain Isosorbide-5-Nitrae-demethylation enzyme inhibitor, benzamides, dicarboxyl amine and benzimidazole being produced to resistance is effective, to fungal disease as powdery mildew, downy mildew, rice blast, rust, downy mildew, damping off, apple apple scab have good activity.
The phonetic phenol of second, chemical name is: 5-butyl-2-ethylamino-4-hydroxyl-6-methylpyrimidine is miazines systemic fungicide.There is protection and therapeutic action, can be absorbed rapidly by plant roots, stem, leaf, and in plant corpus, run to each position, therefore resistance of rainwater washing against.Lasting period 10 ~ 14d after dispenser, the mechanism of action is adenosine deaminase inhibitors, is mainly used in the crop powdery mildews such as control is melon, wheat.
Use the most effective means that chemical agent is controlling plant diseases, and use single chemical bactericide continuously for a long time, easily cause the problems such as the remaining of medicament, environmental pollution and resistance to pesticide resistance.Composite or the mixture of rational chemical bactericide has and expands fungicidal spectrum, improves control efficiency, reduces dosage, reduces poisoning, reduces and remain, delay the features such as pesticide resistance.Report is there is no at present about oxime bacterium ester and the phonetic phenol composition research of second.Inventor, by the composition research to oxime bacterium ester and the phonetic phenol of second, finds that composition has obvious synergistic effect.
Summary of the invention
The object of the present invention is to provide the bactericidal composition containing oxime bacterium ester and the phonetic phenol of second, it is undertaken composite by the sterilization component of two kinds of different structures, the different mechanism of action, expanding prevention can compose and improve drug effect, the more important thing is and avoid or delay the generation of disease to new composition resistance.The object of the invention is to be realized by following measures.
Bactericidal composition containing oxime bacterium ester and the phonetic phenol of second, in wherein said bactericidal composition, the mass ratio of active ingredient oxime bacterium ester and the phonetic phenol of second is 1 ~ 40: 40 ~ 1, and preferably, the mass ratio of the phonetic phenol of second and the phonetic phenol of second is 1 ~ 10: 10 ~ 1.
In the present composition, the quality sum of oxime bacterium ester and the phonetic phenol of second accounts for the 1-90% of composition gross mass.
Above-mentioned composition of the present invention can be made into missible oil, suspending agent, wetting powder, water dispersible granules, microemulsion, aqueous emulsion, microcapsule formulations, aqua, for spraying, filling root, dresses seed or spreads fertilizer over the fields.
The embodiment of the formulations of pesticide that bactericidal composition of the present invention is mixed with is as follows:
Described bactericidal composition is cream preparation, the mass fraction of cream preparation component is: oxime bacterium ester 1 ~ 40 part, 1 ~ 40 part, the phonetic phenol of second, conventional emulsifier 1 ~ 30 part, Conventional solvents and/or cosolvent complement to 100 parts, the concrete production stage of this cream preparation is add the oily liquids that emulsifier for mixing evenly becomes transparent and homogeneous afterwards again after first active ingredient oxime bacterium ester and the phonetic phenol of second being added solvent and dissolving completely in cosolvent, filling, namely can be made into the cream preparation of the present composition.
Described bactericidal composition is suspending agent, and the auxiliary agent of use has one or more in dispersant, wetting agent, thickener, preservative, defoamer, antifreezing agent.The mass fraction of suspending agent component is: oxime bacterium ester 1 ~ 40 part, 1 ~ 40 part, the phonetic phenol of second, dispersant 2 ~ 20 parts, antifreezing agent 1 ~ 5 part, thickener 0.1 ~ 2 part, and defoamer 0.1 ~ 1.5 part, preservative 0 ~ 10 part, water complements to 100 parts.The concrete production stage of this suspending agent is for first to mix other auxiliary agents, mix through high speed shear, add active ingredient oxime bacterium ester and the phonetic phenol of second, abrading-ball 2 ~ 3 hours in ball crusher, make a diameter all at below 5mm, namely can be made into the aqueous suspension formulations of the present composition.
Described bactericidal composition is wetting powder, and the auxiliary agent of use has dispersant, wetting agent, filler.The mass fraction of wetting powder component is: oxime bacterium ester 1 ~ 40 part, 1 ~ 40 part, the phonetic phenol of second, and dispersant 1 ~ 15 part, wetting agent 1 ~ 15 part, filler complements to 100 parts.The concrete production stage of this wetting powder is: mixed with the phonetic phenol of second and dispersant, wetting agent and filler by active ingredient oxime bacterium ester by above-mentioned formula, uniform stirring in stirred tank, mixing after airslide disintegrating mill, namely can be made into the wetting powder of the present composition.
Described bactericidal composition is water dispersible granules, and the auxiliary agent of use has dispersant, wetting agent, disintegrant, binding agent, filler etc.The mass fraction of water dispersible granules component is: oxime bacterium ester 1 ~ 40 part, 1 ~ 40 part, the phonetic phenol of second, dispersant 1 ~ 15 part, and wetting agent 1 ~ 10 part, disintegrant 1 ~ 5 part, filler complements to 100 parts.The concrete production stage of this water dispersible granules is: mixed with the phonetic phenol of second and dispersant, wetting agent, disintegrant and filler by active ingredient oxime bacterium ester by above-mentioned formula, pulverize with micro jet, through mediating, then add in fluidized-bed granulation dryer and to carry out after granulation, drying, screening, through sample analysis, namely can be made into the water dispersible granules of the present composition.
Described bactericidal composition is microemulsion, and the auxiliary agent of use has emulsifier, antifreezing agent, stabilizing agent, cosolvent etc.The mass fraction of microemulsion component is: oxime bacterium ester 1 ~ 40 part, 1 ~ 40 part, the phonetic phenol of second, emulsifier 1 ~ 30 part, and antifreezing agent 1 ~ 8 part, stabilizing agent 0.5 ~ 10 part, Conventional solvents complements to 100 parts.Oxime bacterium ester and the phonetic phenol cosolvent of second are dissolved completely, then add other compositions such as emulsifier, antifreezing agent, stabilizing agent, Homogeneous phase mixing, finally adds water, can be made into microemulsion after fully stirring.
Described bactericidal composition is aqueous emulsion, and the auxiliary agent of use has solvent, emulsifier, stabilizing agent, antifreezing agent, defoamer, thickener etc.The mass fraction of aqueous emulsion component is: oxime bacterium ester 1 ~ 40 part, 1 ~ 40 part, the phonetic phenol of second, solvent 1 ~ 15 part, emulsifier 1 ~ 30 part, stabilizing agent 1 ~ 15 part, antifreezing agent 0.1 ~ 8 part, and defoamer 0.1 ~ 10 part, thickener 0.1 ~ 5 part, water complements to 100 parts.The concrete production stage of this aqueous emulsion is: first oxime bacterium ester and the phonetic phenol of second, solvent and emulsifier, cosolvent are added together, make to be dissolved into uniform oil phase; By part water, antifreeze, other the insecticides adjuvant such as antimicrobial mixes uniformly aqueous phase; While high-speed stirred, oil phase is added aqueous phase in a kettle., slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water, about shearing half an hour, form the aqueous emulsion of oil-in-water type, namely can be made into the aqueous emulsion of the present composition.
Described bactericidal composition is microcapsule formulations, and the auxiliary agent of use has dispersant, antifreezing agent, thickener, preservative, defoamer etc.The mass fraction of microcapsule formulations component is: oxime bacterium ester 1 ~ 40 part, 1 ~ 40 part, the phonetic phenol of second, 1 ~ 20 part, urea, 1 ~ 20 part, formaldehyde, emulsifying dispersant 1 ~ 20 part, antifreezing agent 1 ~ 8 part, and thickener 0.1 ~ 5 part, defoamer 0.1 ~ 2 part, water complements to 100 parts.Such as, in the there-necked flask that agitating device is housed, add urea and formaldehyde (amount of substance ratio is about l:1.0 ~ 2.0), regulate the pH value of solution to about 8 ~ 9, be then warming up to 70 ~ 80 DEG C, be obtained by reacting stable urea resin prepolymer.The former medicine getting a certain amount of oxime bacterium ester and the phonetic phenol of second is dissolved in solvent, and adds emulsifying dispersant in the solution, with vigorous stirring, and the O/W type stable emulsion that to be made into the aqueous solution containing emulsifying dispersant be aqueous phase.Above-mentioned urea resin prepolymer is added in emulsion, adjust ph, polymerization reaction take place under acid catalysed conditions, oil phase substance is wrapped, form microcapsule granule.Slow intensification, solidification, temperature controls at 40 ~ 50 DEG C, hardening time 1h.Select to add appropriate auxiliary agent, stable microcapsule suspending agent.
Described bactericidal composition is aqua, and the auxiliary agent of use has dispersant, antifreezing agent, thickener, defoamer etc.The mass fraction of aqua component is: oxime bacterium ester 1 ~ 40 part, 1 ~ 40 part, the phonetic phenol of second, and wetting, dispersant 0.1 ~ 30 part, antifreezing agent 1 ~ 10 part, defoamer 0.1 ~ 3 part, thickener 0.1 ~ 5 part, complements to 100 parts.By active ingredient oxime bacterium ester and the phonetic phenol of second, dissolve completely with solvent, then add other compositions such as dispersant, antifreezing agent, defoamer, Homogeneous phase mixing, finally adds water, after fully stirring, aqua finished product.
Wherein the emulsifier of the above preparation is selected from any one or multiple in calcium dodecyl benzene sulfonate, aliphatic acid polyethenoxy ether, alkylphenol polyoxyethylene sulfosuccinate, styrylphenol polyoxyethylene ether, polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy base ester, polyoxyethylene aliphatic alcohol ether.
Described solvent or cosolvent are one or more in dimethylbenzene, biodiesel, toluene, diesel oil, methyl alcohol, ethanol, n-butanol, isopropyl alcohol, turpentine-based vegetable oil, solvent naphtha, dimethyl formamide, dimethyl sulfoxide (DMSO), water equal solvent
Described dispersant be selected from polycarboxylate, lignosulfonates, alkylphenol polyoxyethylene methyl ether condensate sulfate, alkylsulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, polyoxyethylene carboxylate, aliphatic amine polyoxyethylene ether, fatty acid glyceride APEO one or more.
Described wetting agent be selected from lauryl sodium sulfate, calcium dodecyl benzene sulfonate, Nekal BX, moistening bleeding agent, alkylbenzenesulfonate polyoxyethylene tri-styryl phosphenylic acid salt, spaonin powder, silkworm excrement, soapberry powder one or more.
Binding agent to be selected from diatomite, corn starch, PVA, carboxymethyl (ethyl) cellulose family and microcrystalline cellulose class one or more.
Described disintegrant be selected from bentonite, urea, ammonium sulfate, aluminium chloride, citric acid, succinic acid, sodium bicarbonate one or more.
Described thickener to be selected from xanthans, carboxymethyl cellulose, carboxyethyl cellulose, methylcellulose, Magnesiumaluminumsilicate, polyvinyl alcohol one or more.
Described stabilizing agent is selected from one or more in sodium citrate, resorcinol, triphenyl phosphite, epoxychloropropane.
Described antifreezing agent be selected from ethylene glycol, propane diols, glycerine, urea, inorganic salts sodium chloride one or more.
Preservative be selected from benzoic acid, Sodium Benzoate, BIT (BIT) etc. one or more.
Described defoamer be selected from silicone oil, silicone compound, C10-20 saturated fat acid compounds, C8-10 fatty alcohol one or more.
Described filler be selected from kaolin, diatomite, bentonite, attapulgite, white carbon, starch, precipitated calcium carbonate one or more.
Also can containing promoting that the active ingredient of preparation synergy is as one or more in bactericide, fertilizer element, plant growth regulator in above preparation.Containing one or more in chitosan oligosaccharide, potash fertilizer, phosphate fertilizer in composition.
Present invention also offers the purposes of one or more diseases of above-mentioned composition control plant.The disease of suitable control has, the fungus-caused powdery mildew of Ascomycotina, anthracnose, leaf spot etc., the fungus-caused downy mildew of Mastigomycotina, late blight, peronospora tabacina etc., the rust that Basidiomycotina causes, smut etc., the fungus-caused bakanae disease of Fungi Imperfecti, scab etc.
In such use, the plant of control is wheat, cucumber, grape, watermelon, apple, oranges and tangerines, pears, lichee, paddy rice, flowers, turfgrass etc.
The present invention also finds, above-mentioned composition has excellent synergy control efficiency to grape powdery mildew, powdery mildew of cucumber and downy mildew, wheat powdery mildew and leaf spot, turfgrass powdery mildew and brown spot, and synergistic effect is obvious.
Beneficial effect of the present invention is:
1, synergistic effect is obvious: composition shows good synergistic effect in certain ratio range, improves the protection effect of composition.
2, expanding prevention spectrum: composition can prevent and treat the multiple diseases on plant.
3, use cost is reduced: because of composite, there is raising preventive effect, the increase of control spectrum, reduce access times, reduce use cost;
4, delay pesticide resistance: the composition of two kinds of different mechanism of action is composite, and pathogen not easily develops immunity to drugs, delay pathogen to the drug-fast generation of single dose.
Embodiment
Following examples further illustrate of the present invention, but the present invention is not confined to following embodiment.
The composition of embodiment 1 oxime bacterium ester and the phonetic phenol of second is to the room effect of grape powdery mildew
Adopt spore germination method, with trial test concentration for reference, oxime bacterium ester, the phonetic phenol of second, bupirimate suitable solvent are diluted respectively, composition is necessarily composite according to proportioning.Get it filled agent 10 μ L point on slide, dry to make medicine film under dust-proof condition.Infection white powder grape is cut, with the mould layer of white powder shape under writing brush type brush, adds the spore suspension that sterile water makes debita spissitudo.10 μ L spore suspensions are added drop-wise on medicine film.After 16h is cultivated in moisturizing at 20 DEG C, check the sprouting situation of spore.After the germination rate of blank reaches about 80%, check the germination rate of all process.Being greater than spore short radius person for sprouting with spore germ tube length, being calculated as follows Inhibiting germination rate.
Being synergistic effect when collaborative toxicity index is more than or equal to 20, is antagonism when being less than or equal to negative 20, and negative is summation action between 20 and positive 20.The results are shown in Table 1.
The composition of table 1 oxime bacterium ester and the phonetic phenol of second is to the effect of the former bacterium of grape powdery mildew
With the composition of oxime bacterium ester and bupirimate for contrasting, determine the composition of oxime bacterium ester and the phonetic phenol of second to the effect of the former bacterium of grape powdery mildew.As seen from Table 1, the composition of oxime bacterium ester and the phonetic phenol of second is when 1:10-10:1, to the effect of grape powdery mildew all higher than the theoretical inhibiting rate of composition, and the effect of the composition of oxime bacterium ester and the phonetic phenol of second is higher than the effect of the composition of oxime bacterium ester and bupirimate under same drug concentration.Obviously, oxime bacterium ester and the composite of the phonetic phenol of second are synergy to grape powdery mildew.
The composition of embodiment 2 oxime bacterium ester and the phonetic phenol of second is to the control efficiency of powdery mildew of cucumber
Single dose and composition are mixed with wetting powder.During test, cucumber plant, substantially in 4 leaf phases, investigates powdery mildew incidence before the 1st medicine.Carried out the sick pot experiment of powdery mildew of cucumber with the composition of oxime bacterium ester and Fluoxastrobin, and established corresponding single dose and blank, adopt the conventional conventional spray of manual sprayer, every medicament sprays 10 strains, and the 7-10d after 1 time that sprays sprays 1 time again.10-14d investigation after 2nd dispenser, whole blade is investigated in every strain, and record investigation total number of sheets, the sick number of sheets, calculate disease index and preventive effect according to following stage division.
Blade staging:
0 grade: anosis
1 grade: the scab area that is connected accounts for less than 1% of whole leaf area;
3 grades: the scab area that is connected accounts for the 1%-10% of whole leaf area;
5 grades: the scab area that is connected accounts for the 11%-20% of whole leaf area;
7 grades: the scab area that is connected accounts for the 21%-50% of whole leaf area;
9 grades: the scab area that is connected accounts for more than 51% of whole leaf area;
The preventive effect of the active component A that x is working concentration when being a, the preventive effect of the active component B that y is working concentration when being b.Relatively theoretical effect and actual effect, evaluates the synergy of composition, for synergistic effect when being greater than theoretical preventive effect with actual preventive effect.The results are shown in Table 2.
Table 2 composition is to the control efficiency of powdery mildew of cucumber, downy mildew
Note: in table 2 in last row " downy mildew ", the grade scale of disease occurrence degree is: " +++ " expression downy mildew occurs heavier, and it is medium that " ++ " represents that downy mildew occurs, and "+" represents that downy mildew has generation, and "-" expression substantially downy mildew does not occur.
By oxime bacterium ester composition, the potted plant test of powdery mildew of cucumber is found, the composition of oxime bacterium ester and the phonetic phenol of second when 1:2-2:1, composition to the effect of powdery mildew of cucumber all higher than the theoretical preventive effect of composition.Obviously, oxime bacterium ester and the composite of the phonetic phenol of second are synergy to powdery mildew of cucumber.In addition surprisingly, comparatively single dose is light to the generation of cucumber downy mildew for compositions-treated.
The composition of embodiment 3 oxime bacterium ester and the phonetic phenol of second is to wheat powdery mildew field trial
Single dose and composition are mixed with water dispersible granules.Carried out wheat powdery mildew field trial with composition, and established corresponding single dose and blank, community 10m established by every medicament
2.Adopt the conventional conventional spray of knapsack sprayer, test respectively sprays 1 time in booting and flowering initial stage, before medicine and after the 2nd dispenser, 7 ~ 10d investigates, often process is by 5 samplings, often 50 strains, whole blade is investigated in every strain, and record investigation total number of sheets, the sick number of sheets, calculate disease index and preventive effect according to following stage division.
Blade staging:
0 grade: anosis
1 grade: the scab area that is connected accounts for less than 1% of whole leaf area;
3 grades: the scab area that is connected accounts for the 1%-5% of whole leaf area;
5 grades: the scab area that is connected accounts for the 6%-25% of whole leaf area;
7 grades: the scab area that is connected accounts for the 26%-50% of whole leaf area;
9 grades: the scab area that is connected accounts for more than 51% of whole leaf area;
The preventive effect of the active component A that x is working concentration when being a, the preventive effect of the active component B that y is working concentration when being b.Relatively theoretical effect and actual effect, evaluates the synergy of composition, for synergistic effect when being greater than theoretical preventive effect with actual preventive effect.The control efficiency of bactericidal composition to wheat powdery mildew containing oxime bacterium ester the results are shown in Table 3.
Table 3 composition is to wheat powdery mildew, leaf rust field efficacy
Note: in table 3 in last row " wheat leaf rust ", the grade scale of disease occurrence degree is: " ++++" represent that the generation of leaf rust is heavy, " +++ " represents that leaf rust occurs heavier, and " ++ " expression leaf rust occurs medium, it is light that "+" represents that leaf rust occurs, and leaf rust does not occur substantially in "-" expression.
By the composition of oxime bacterium ester and second phonetic phenol wheat powdery mildew tested and finds, the composition of oxime bacterium ester and the phonetic phenol of second when 1:3-3:1, composition to the effect of wheat powdery mildew all higher than the theoretical preventive effect of composition.Obviously, the composition of oxime bacterium ester and the phonetic phenol of second is synergy to wheat powdery mildew.In addition surprisingly, comparatively single dose is light to the generation of wheat leaf rust for compositions-treated.
The composition of embodiment 4 oxime bacterium ester and the phonetic phenol of second is tested Turfgrass Diseases
Single dose and composition are mixed with suspending agent.During mensuration, first imposed on by liquid medicine jet on potted plant Bermuda grass weeds, then quantitatively inoculate pathogen, moisturizing is placed in greenhouse and cultivates, measure the percentage that plant leaf surface infects after certain hour after cultivating 24h.Use Abbot formula, convert percentage to preventive effect.
The preventive effect of the active component A that x is working concentration when being a, the preventive effect of the active component B that y is working concentration when being b.Relatively theoretical effect and actual effect, evaluates the synergy of composition, for synergistic effect when being greater than theoretical preventive effect with actual preventive effect.The results are shown in Table 4.
Table 4 composition is to the effect of Turfgrass Diseases
Note: in table 4 in last row " a situation arises for brown spot ", the grade scale of disease occurrence degree is: " ++++" represent that brown spot occurs to weigh, " ++ " expression brown spot occurs medium, and it is light that "+" represents that brown spot occurs, and "-" expression substantially brown spot does not occur.
By the composition of oxime bacterium ester and second phonetic phenol Diseases of Turfgrass disease tested and finds, the composition of oxime bacterium ester and the phonetic phenol of second when 1:2 and 2:1, composition to the effect of lawn powdery mildew all higher than the theoretical preventive effect of composition.In addition, in composition, after adding chitosan oligosaccharide, when 15mg/L, chitosan oligosaccharide is added to the effect of the effect of powdery mildew higher than the composition of oxime bacterium ester and the phonetic phenol of second in the composition of oxime bacterium ester and the phonetic phenol of second, obviously, the composition of oxime bacterium ester and the phonetic phenol of second and oxime bacterium ester, the phonetic phenol of second, chitosan oligosaccharide composition be synergy to lawn powdery mildew.In addition surprisingly, comparatively single dose is light to the generation of Brown patch disease for compositions-treated.
Claims (10)
1. contain the bactericidal composition of oxime bacterium ester and the phonetic phenol of second, it is characterized in that: in composition, the mass ratio of oxime bacterium ester and the phonetic phenol of second is 1 ~ 40: 40 ~ 1.
2. according to bactericidal composition according to claim 1, it is characterized in that: the mass ratio of the phonetic phenol of second and the phonetic phenol of second is 1 ~ 10: 10 ~ 1.
3. according to the bactericidal composition described in claim 1 or 2, it is characterized in that: the quality sum of oxime bacterium ester and the phonetic phenol of second accounts for the 1-90% of composition gross mass.
4. according to bactericidal composition according to claim 3, it is characterized in that: composition makes missible oil, suspending agent, wetting powder, water dispersible granules, microemulsion, aqueous emulsion, microcapsule formulations or aqua.
5. according to bactericidal composition according to claim 4, it is characterized in that: containing one or more in bactericide, fertilizer, plant growth regulator in composition, such as composition contains chitosan oligosaccharide.
6. the application method of the bactericidal composition of claim 4 or 5, is characterized in that: composition is used for spraying, fills with root, dresses seed or spread fertilizer over the fields.
7. the purposes of the bactericidal composition of claim 4 or 5, is characterized in that: one or more diseases of composition for preventing and controlling plant.
8. purposes according to claim 7, it is characterized in that: disease is the fungus-caused powdery mildew of Ascomycotina, anthracnose, leaf spot, the fungus-caused downy mildew of Mastigomycotina, late blight, peronospora tabacina, the rust that Basidiomycotina causes, smut, the fungus-caused bakanae disease of Fungi Imperfecti, scab.
9. purposes according to claim 7, is characterized in that: the plant of control is grape, cucumber, wheat, watermelon, apple, oranges and tangerines, pears, lichee, paddy rice, flowers, turfgrass.
10. purposes according to claim 7, is characterized in that: disease is grape powdery mildew, powdery mildew of cucumber and downy mildew, wheat powdery mildew and leaf spot, turfgrass powdery mildew and brown spot.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106172411A (en) * | 2016-07-14 | 2016-12-07 | 海南正业中农高科股份有限公司 | Containing oligochitosan and ethirimol or the bactericidal composition of bupirimate |
| CN107926957A (en) * | 2017-12-04 | 2018-04-20 | 刘志伟 | A kind of bactericidal composition containing ethirimol |
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| WO2006035316A2 (en) * | 2005-04-25 | 2006-04-06 | Syngenta Participations Ag | Fungicidal aqueous compositions for seed treatment |
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| CN106172411A (en) * | 2016-07-14 | 2016-12-07 | 海南正业中农高科股份有限公司 | Containing oligochitosan and ethirimol or the bactericidal composition of bupirimate |
| CN107926957A (en) * | 2017-12-04 | 2018-04-20 | 刘志伟 | A kind of bactericidal composition containing ethirimol |
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