CN105360119A - Sterilization composition containing trifloxystrobin and efficient metalaxyl-M - Google Patents
Sterilization composition containing trifloxystrobin and efficient metalaxyl-M Download PDFInfo
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- CN105360119A CN105360119A CN201510961175.3A CN201510961175A CN105360119A CN 105360119 A CN105360119 A CN 105360119A CN 201510961175 A CN201510961175 A CN 201510961175A CN 105360119 A CN105360119 A CN 105360119A
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- bacterium ester
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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
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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
- A01N37/46—N-acyl derivatives
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- Pest Control & Pesticides (AREA)
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Abstract
The invention relates to a sterilization composition containing trifloxystrobin and efficient metalaxyl-M. Effective constituents of the sterilization composition are a binary combination of the trifloxystrobin and the efficient metalaxyl-M, wherein the mass ratio of the trifloxystrobin to the efficient metalaxyl-M is 1-40 to 40-1. The mass percentage ratio of effective constituents, namely the trifloxystrobin to the efficient metalaxyl-M, in a preparation is 1-80%, the remaining constituents are auxiliary constituents which are allowed to be used in and acceptable to pesticide, and the dosage form of the sterilization composition can be missible oil, a suspending agent, wettable powder, water dispersible granules, emulsion in water, micron emulsion, granules and micro capsules. The sterilization composition has high activity against almost all eumycetes (ascomycetes, basidiomycetes, oomycetes and fungi imperfecti) diseases such as powdery mildew, rust disease, bacterial wilt, net blotch, downy mildew and rice blast and also has good activity against damping-off and apple scab.
Description
Technical field
The present invention relates to technical field of pesticide combination, particularly relate to a kind of bactericidal composition containing oxime bacterium ester and high-efficiency precision metalaxyl.
Background technology
Oxime bacterium ester is new fungicides.Characteristics such as having efficient, wide spectrum, protection, treat, root out, permeate, systemic activity, resistance of rainwater washing against, lasting period are long, with existing bactericide at present without cross resistance.Good activity is all had to nearly all Mycophytes (Ascomycetes, Basidiomycetes, Oomycete and Fungi Imperfecti) disease such as powdery mildew, rust, Ying's rot, net blotch, downy mildew, rice blast etc.Except having special efficacy to powdery mildew, leaf spot, there is good activity to rust, downy mildew, damping off, apple apple scab.The chemistry of oxime bacterium ester is called: (2Z)-2-methoxyimino-2-[2-[[1-[3-(trifluoromethyl) phenyl] ethyleneimino] oxygen methyl] phenyl] methyl acetate, and its chemical structural formula is:
High-efficiency precision metalaxyl belongs to phenylamide; for efficient, low toxicity, low-residual, the lasting period is long, insecticide-applying way is diversified, the wide spectrum systemic fungicide of the equal excellence of protection and result for the treatment of; cauline leaf process, seed treatment and soil treatment can be made, have aobvious control efficiency of removing from office to the crop pest that downy mildew, phytophthora, pythium spp etc. cause.
Use the most effective means that chemical agent is controlling plant diseases.But long-term use single chemical bactericide continuously high dose, easily cause the problems such as the remaining of medicament, environmental pollution and resistance to pesticide resistance fungi development.Composite or the mixture of rational chemical bactericide has expansion fungicidal spectrum, improve control efficiency, extend the optimum period for applying fertilizer, reduce dosage, reduce poisoning, minimizing remains, delay Antifungal resistance and the actively feature such as drug-fast generation and development, bactericide compounded is one of the effective method the most solved the problem.Develop new product bactericide price constantly rises, and by contrast, exploitation is efficient with research, low toxicity, low-residual composite and mixture has small investment, the lead time is short and be subject to domestic and international attention, numerous and confused increasing develops dynamics.We are on the basis of lab screening and field trial, filter out oxime bacterium ester and high-efficiency precision metalaxyl carries out composite, have obvious synergistic effect.And about oxime bacterium ester and high-efficiency precision metalaxyl composite bactericidal composition and apply and there is no people at present and reported.
Summary of the invention
Based on above situation, the object of the invention is to provide a kind of new and effective pesticide sterilizing composite.Good activity is all had to nearly all Mycophytes (Ascomycetes, Basidiomycetes, Oomycete and Fungi Imperfecti) disease such as powdery mildew, rust, Ying's rot, net blotch, downy mildew, rice blast etc.Also good activity is had to damping off, apple apple scab.
Technical scheme of the present invention is realized by following measures:
Contain a bactericidal composition for oxime bacterium ester and high-efficiency precision metalaxyl, active ingredient oxime bacterium ester and the high-efficiency precision metalaxyl two yuan of this bactericidal composition are composite, and all the other are auxiliary element.In wherein said bactericidal composition, the mass ratio of active ingredient oxime bacterium ester and high-efficiency precision metalaxyl is 1 ~ 40: 40 ~ 1, described bactericidal composition of the present invention is through toxicity test experimental verification, when the mass ratio of oxime bacterium ester and high-efficiency precision metalaxyl is 1 ~ 40: 40 ~ 1, synergistic effect is better.
The formulations of pesticide that described bactericidal composition of the present invention can be prepared are missible oil, suspending agent, wetting powder, water dispersible granules, aqueous emulsion, microemulsion, granule, microcapsule formulations.Wherein active ingredient oxime bacterium ester and high-efficiency precision metalaxyl gross mass in the formulation account for 1% ~ 80% of the whole quality of the pharmaceutical preparations, and when wherein accounting for 5% ~ 50%, toxicity reaches good balance with residual, and cost is also lower.
The specific embodiments of the formulations of pesticide that bactericidal composition of the present invention is mixed with is as follows:
Described bactericidal composition is cream preparation, and the mass fraction of component is: oxime bacterium ester 1 ~ 40 part; High-efficiency precision metalaxyl 1 ~ 40 part; Conventional emulsifier 10 ~ 30 parts; Conventional solvents 20 ~ 50 parts; Conventional synergist 1 ~ 5 part.The concrete production stage of this cream preparation be first active ingredient oxime bacterium ester and high-efficiency precision metalaxyl are added dissolve completely in solvent after add emulsifier again, synergist becomes transparent and homogeneous oily liquids after stirring, filling, namely can be made into the cream preparation of the present composition.
Described bactericidal composition is suspending agent, and the mass fraction of component is: oxime bacterium ester 1 ~ 40 part; High-efficiency precision metalaxyl 1 ~ 40 part; Dispersant 5 ~ 20 parts; Antifreezing agent 1 ~ 5 part; Thickener 0.1 ~ 2 part; Defoamer 0.1 ~ 0.8 part; Penetrating agent 0 ~ 10 part; PH value regulator 0.1 ~ 5 part; Water, surplus.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 high-efficiency precision metalaxyl, 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 mass fraction of component is: oxime bacterium ester 1 ~ 40 part; High-efficiency precision metalaxyl 1 ~ 40 part; Dispersant 3 ~ 10 parts; Wetting agent 1 ~ 5 part; Filler, surplus.The concrete production stage of this wetting powder is: mixed with high-efficiency precision metalaxyl 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 mass fraction of component is: oxime bacterium ester 1 ~ 40 part; High-efficiency precision metalaxyl 1 ~ 40 part; Dispersant 3 ~ 10 parts; Wetting agent 1 ~ 10 part; Disintegrant 1 ~ 5 part; Filler, surplus.The concrete production stage of this water dispersible granules is: mixed with high-efficiency precision metalaxyl 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 aqueous emulsion, and the mass fraction of component is: oxime bacterium ester 1 ~ 40 part; High-efficiency precision metalaxyl 1 ~ 40 part; Emulsifier 3 ~ 30 parts; Solvent 5 ~ 15 parts; Stabilizing agent 2 ~ 15 parts; Antifreezing agent 1 ~ 5 part; Defoamer 0.1 ~ 8 part; Thickener 0.2 ~ 2 part; Water, surplus.The concrete production stage of this aqueous emulsion is: first oxime bacterium ester and high-efficiency precision metalaxyl, solvent and emulsifier, cosolvent are added together, and makes 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, shear about 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 microemulsion, and the mass fraction of component is: oxime bacterium ester 1 ~ 40 part; High-efficiency precision metalaxyl 1 ~ 40 part; Emulsifier 10 ~ 30 parts, antifreezing agent 1 ~ 8 part, stabilizing agent 0.5 ~ 10 part, Conventional solvents cosolvent 20 ~ 50 parts.Oxime bacterium ester and high-efficiency precision metalaxyl cosolvent 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 granule, and the mass fraction of component is: oxime bacterium ester 1 ~ 40 part; High-efficiency precision metalaxyl 1 ~ 40 part; Wetting dispersing agent 1 ~ 10 part; Thickener 0.1 ~ 5 part; Defoamer 0.1 ~ 5 part; Castor oil, surplus is supplied.Each components such as active ingredient oxime bacterium ester and high-efficiency precision metalaxyl, dispersant, stabilizing agent, defoamer and solvent are mixed in the ratio of filling a prescription, after putting into the grinding of sand milling still, sends into mixing in mixer for well-distribution and get product.
Described bactericidal composition is microcapsule formulations, and the mass fraction of component is: oxime bacterium ester 1 ~ 40 part; High-efficiency precision metalaxyl 1 ~ 40 part; 5 ~ 20 parts, urea; 5 ~ 20 parts, formaldehyde; Emulsifying dispersant 5 ~ 20 parts; Antifreezing agent 1 ~ 5 part; Thickener 0.1 ~ 2 part; Defoamer 0.1 ~ 0.8 part; Water, surplus.Urea and formaldehyde (amount of substance ratio is about l:1.5 ~ 2.0) is added in the there-necked flask that agitating device is housed, regulate the pH value of solution to about 8 ~ 9 with sodium hydroxide solution, then be 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 high-efficiency precision metalaxyl is dissolved in cyclohexane, 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.
Wherein above-described emulsifier is selected from calcium dodecyl benzene sulfonate and aliphatic acid polyethenoxy ether, alkylphenol polyoxyethylene sulfosuccinate, styrylphenol polyoxyethylene ether, polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy base ester, any one in polyoxyethylene aliphatic alcohol ether or more than one any mixtures than composition.
Described solvent is dimethylbenzene or biodiesel, toluene, diesel oil, methyl alcohol, ethanol, n-butanol, isopropyl alcohol, turpentine oil, solvent naphtha, dimethyl formamide, dimethyl sulfoxide (DMSO), and one or more in water equal solvent are arbitrarily than the mixture of composition.
Described dispersant is 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, one or more in fatty acid glyceride APEO.
Described wetting agent is selected from lauryl sodium sulfate, calcium dodecyl benzene sulfonate, Nekal BX, moistening bleeding agent F, alkylbenzenesulfonate polyoxyethylene triphen phosphenylic acid salt dimly, spaonin powder, silkworm excrement, one or more in soapberry powder.
Described disintegrant is selected from bentonite, urea, ammonium sulfate, aluminium chloride, citric acid, succinic acid, one or more in sodium bicarbonate.
Described thickener is selected from xanthans, carboxymethyl cellulose, carboxyethyl cellulose, methylcellulose, Magnesiumaluminumsilicate, in polyvinyl alcohol one or more.
Described stabilizing agent is selected from sodium citrate, the one in resorcinol.
Described antifreezing agent is selected from ethylene glycol, propane diols, one or more in glycerine.
Described defoamer is selected from silicone oil, silicone compound, C
10-20saturated fat acid compounds, C
8-10one or more of fatty alcohol.
Described filler is selected from kaolin, diatomite, bentonite, attapulgite, white carbon, starch, one or more in precipitated calcium carbonate.
The composite bactericide that the present invention is active ingredient with oxime bacterium ester and high-efficiency precision metalaxyl has obvious synergistic effect, delays the drug-fast generation in key, and reduces into product cost and use cost, can be used for the improvement of resistance disease.All there is good activity to nearly all Mycophytes (Ascomycetes, Basidiomycetes, Oomycete and Fungi Imperfecti) disease as powdery mildew, rust, Ying's rot, net blotch, downy mildew, rice blast etc., also have good activity to damping off, apple apple scab.
Embodiment
For making technical scheme of the present invention, object and advantage are clearly understood, the following specific embodiment of the present invention is described, but the present invention is not limited to these examples.The mode that effect experimental of the present invention adopts indoor biometrics and field trial to combine, if no special instructions, the ratio below mentioned is all ratio of quality and the number of copies.
Embodiment: oxime bacterium ester and high-efficiency precision metalaxyl different ratio co-toxicity are tested.
1.1 reagent agent
The former medicine of 95% oxime bacterium ester, the former medicine of 95% high-efficiency precision metalaxyl, above-mentioned former medicine provides by research and development department of extra large rel medicine company limited company.
1.2 test targets
Never executed oxime bacterium ester and high-efficiency precision metalaxyl and cucumber of the same type to gather potted plantly be separated, for examination cucumber variety: Chang Chun Mi Ci from Shouguang, Shandong.
1.3 test method
1.3.1 medicament preparation
First use the former medicine of acetone solution, appropriate two former medicines are made into different ratio by the result according to preliminary experiment, then it is stand-by with acetone, each process to be diluted to some concentration gradients respectively.
By susceptible cucumber variety Chang Chun Mi Ci cultivation in pot for growing seedlings, be placed in greenhouse and cultivate, plant grows to three to four leaf after dates, gathers the blade of identical leaf age, for cultivation and the mensuration of cucumber powdery mildew's pathogen.
1.3.2 the cultivation of cucumber powdery mildew's pathogen and the preparation of spore suspension
Cucumber powdery mildew's pathogen adopt plants method 20 DEG C, cultivate under the condition of 12h alternation of light and darkness, every 30d turns culture 1 time.With the conidium on sterile water wash-out incidence of leaf during inoculation, being mixed with spore concentration is l × 10
6the suspension of individual/mL.
1.3.3 strains tested sensitivity testing
Leaf dish moisturizing method is adopted to carry out toxicity test.First the blade of collection is prepared into the leaf dish that diameter is 1.5cm, random mixing, be placed in the series concentration liquid configured respectively and soak lh, each concentration 50 leaf dishes, test with the process of not adding medicine as blank, after immersion terminates, leaf faces up and puts on the blotting paper that identical liquor strength is wetting, liquid on leaf dish is blotted, the spore suspension l0L prepared is inoculated in leaf dish central authorities, room temperature is placed after 5min, is placed in 20 DEG C, cultivates under the condition of 12h alternation of light and darkness, measure the onset area on leaf dish after 10d, calculate EC
50.
On the basis of preliminary experiment, respectively toxicity test is carried out to single dose oxime bacterium ester and high-efficiency precision metalaxyl in order to upper method, the two EC
50value is respectively 4.73 ㎎/l and 14.32 ㎎/l.
The percentage accounting for leaf disc area according to lesion area divides disease level
0 grade: anosis;
1 grade: sorus area accounts for less than 5% of whole leaf area;
3 grades: sorus area accounts for below the 6%-10% of whole leaf area;
5 grades: sorus area accounts for below the 11%-20% of whole leaf area;
7 grades: sorus area accounts for below the 21%-50% of whole leaf area;
9 grades: sorus area accounts for more than 50% of whole leaf area.
1.3.4 mixture toxicity test and interpretation of result
Carry out the toxicity test of mixture according to mixed ratio by single dose toxicity test method.
If contrast lethality <5%, does not correct, contrast lethality, between 5%-20%, corrects by formula 2, and contrast lethality >20%, test need be reformed.
Be independent variable x with the logarithm value of drug concentration (mg/L), with the probability value of corrected mortality for dependent variable y, set up virulence regression equation formula respectively, adopt DPS software to calculate the EC of single dose and each proportioning mixture
50co-toxicity coefficient (CTC) is calculated according to the abundant method of Sun Yun.Co-toxicity coefficient CTC, computing formula is as follows: (take 2-cyano-3-amino-3-phenylancryic acetate as standard agent, its toxicity index is 100):
The EC of toxicity index (the TI)=oxime bacterium ester of high-efficiency precision metalaxyl
50the EC of/high-efficiency precision metalaxyl
50× 100
The EC of true toxicity index (the ATI)=oxime bacterium ester of M
50the EC of/M
50× 100
TI × P high-efficiency precision metalaxyl of TI × P oxime bacterium ester+high-efficiency precision metalaxyl of theoretical toxicity index (the TTI)=oxime bacterium ester of M
TTI × 100 of the ATI/M of co-toxicity coefficient (the CTC)=M of M
In formula:
M is the mixture of oxime bacterium ester and high-efficiency precision metalaxyl different ratio
P oxime bacterium ester is the ratio of oxime bacterium ester shared by mixture
P high-efficiency precision metalaxyl is the ratio of high-efficiency precision metalaxyl shared by mixture.
2.1 toxicity test results
Table 1 oxime bacterium ester and high-efficiency precision metalaxyl are to the toxicity test of powdery mildew of cucumber
As can be seen from the table, the result of the test of different proportion proportioning shows, dilute respectively in active ingredient ratio and all show stronger synergistic effect, wherein with oxime bacterium ester and high-efficiency precision metalaxyl for the good suggestion of synergistic effect when 1:20 ~ 20:1 carries out further field control effectiveness test to suitable proportion about 1:20 ~ 20:1 mixture preparation, to evaluate its field practical application effect.
3 field trials prevent and treat the experimental result of powdery mildew of cucumber, rice sheath blight disease
3.1 field trials prevent and treat powdery mildew of cucumber
3.1.1 test method
Test on Shandong Pingdu City cucumber ground, 4 points are investigated in every community, often some investigation 2 strains, and record occurring degree by staging, grade scale is as follows:
0 grade: anosis;
1 grade: sorus area accounts for less than 5% of whole leaf area;
3 grades: sorus area accounts for below the 6%-10% of whole leaf area;
5 grades: sorus area accounts for below the 11%-20% of whole leaf area;
7 grades: sorus area accounts for below the 21%-50% of whole leaf area;
9 grades: sorus area accounts for more than 50% of whole leaf area.
3.1.2 control time and number of times
Test altogether investigate 4 times, before medicine radix investigation, first time medicine after 10 days, second time 10 days and medicine after within 21 days, investigate.
3.1.3 drug effect computational methods
Sick leaf rate (%)=sick number of sheets/investigate the total number of sheets × 100
Disease index=∑ (the sick number of sheets × relative level numerical value at different levels)/(investigating the total number of sheets × 9) × 100
Control efficiency (%)=(1-(before blank district medicine after disease index × treatment region medicine disease index)/(after blank district medicine before disease index × treatment region medicine disease index)) × 100.
3.1.4 poisoning investigation method
Whether after dispenser, continuous 10d estimates medicament has poisoning to crop.
3.1.5 result of the test and analysis
Each process prevents and treats the effect of powdery mildew of cucumber.(table 2)
The effect of powdery mildew of cucumber prevented and treated by table 2 respectively process
Oxime bacterium ester and high-efficiency precision metalaxyl control successful higher than oxime bacterium ester and high-efficiency precision metalaxyl single dose with 12:36 ratio composite bactericide for powdery mildew of cucumber as shown in Table 2, and bactericidal effect increases progressively with the increase of dosage.According to field range estimation, within the scope of test dose, plant growth is normal, and the poisoning phenomenon to cucumber does not all appear in each treatment agent, illustrates that it is safe to cucumber.Advise that the bactericide different from the mechanism of action is used in combination to delay the drug-fast generation of germ.
The 3.2 field trial water prevention rice sheath blight
3.2.1 test method
Test and transplant rice seedling in Lian Feng village, Liu Bao town, Baoying County, soil property is sandy soil, pH value 8, the content of organic matter 2.0, and fertility is general, front stubble wheat.Supply examination paddy rice to be Huaihe River rice No. 5, June 19 transplanted, and growing way is better, and during medication, breeding time is booting stage, and the field water rice sheath blight occurs heavier.
3.2.2 control time and number of times
Test is investigated 4 times altogether, and take parallel great-jump-forward sample, 20 clumps of rice are investigated in every community, records diseased plant number, sick level, statistics diseased plant rate and disease index, radix investigation before medicine, within 21 days, investigates after first time medicine after 10 days, 10 days for the second time and medicine.
Record occurring degree by staging, grade scale is as follows:
0 grade: complete stool is anosis;
1 grade: quaterfoil and following leaf sheath thereof, blade morbidity (be first blade with top);
3 grades: Three-blade and following leaf sheath thereof, blade morbidity;
5 grades: second blade and following leaf sheath thereof, blade morbidity;
7 grades: sword-like leave blade and following leaf sheath thereof, blade morbidity;
9 grades: complete stool falls ill, withered ahead of time.
3.2.3 drug effect computational methods
Diseased plant rate (%)=diseased plant number/investigate total strain number × 100
Disease index=∑ (diseased plant number × relative level numerical value at different levels)/(investigating total strain number × 9) × 100
Control efficiency (%)=(1-(before blank district medicine after disease index × treatment region medicine disease index)/(after blank district medicine before disease index × treatment region medicine disease index)) × 100.
3.2.4 poisoning investigation method
Whether after dispenser, continuous 10d estimates medicament has poisoning to crop.
3.2.5 result of the test and analysis
Table 3 respectively processes the effect of the water prevention rice sheath blight
Interpretation of result:
As shown in Table 3, oxime bacterium ester and high-efficiency precision metalaxyl remarkable with the effectiveness comparison of 12:36 ratio compositional bactericidal agent for preventing and treating rice sheath blight disease, and the Be very effective of complex preparation is better than two kinds of single doses, estimate according to field, within the scope of test dose, plant growth is normal, and the poisoning phenomenon to paddy rice does not all appear in each treatment agent, not only significantly improve the effect for rice sheath blight disease, and extend its lasting period further.
In sum, the present invention contains the Bactericidal composite of oxime bacterium ester and high-efficiency precision metalaxyl, have good control efficiency, and it is to Target crops safety to powdery mildew of cucumber, rice sheath blight disease.Complex preparation not only increases preventive effect, and expands fungicidal spectrum, widens the scope of application, reduces costs, and plays the double effect controlled of a medicine, alleviate manpower and materials to multiple diseases, improves productivity effect.So the invention of this complex preparation is of great significance social tool with popularization.
Claims (4)
1. one kind contains the bactericidal composition of oxime bacterium ester and high-efficiency precision metalaxyl, it is characterized in that: the active ingredient of this bactericidal composition is oxime bacterium ester and high-efficiency precision metalaxyl binary built, all the other are auxiliary element, and wherein the mass ratio of active ingredient oxime bacterium ester and high-efficiency precision metalaxyl is 1 ~ 40: 40 ~ 1.
2. bactericidal composition according to claim 1, is characterized in that: oxime bacterium ester and high-efficiency precision metalaxyl gross weight in the formulation account for 1% ~ 80% of the whole quality of the pharmaceutical preparations.
3. bactericidal composition according to claim 2, is characterized in that: oxime bacterium ester and high-efficiency precision metalaxyl gross weight in the formulation account for 5% ~ 50% of the whole quality of the pharmaceutical preparations.
4. the bactericidal composition according to claim 1 or 2 or 3, is characterized in that: the formulation of this bactericidal composition is missible oil, suspending agent, wetting powder, water dispersible granules, aqueous emulsion, microemulsion, granule, microcapsule formulations.
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| CN103229767A (en) * | 2013-05-09 | 2013-08-07 | 青岛奥迪斯生物科技有限公司 | Trifloxystrobin and bupirimate-containing sterilization composition |
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2015
- 2015-12-19 CN CN201510961175.3A patent/CN105360119A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101953347A (en) * | 2010-06-03 | 2011-01-26 | 深圳诺普信农化股份有限公司 | Pesticide composition and application thereof |
| CN102379292A (en) * | 2011-09-13 | 2012-03-21 | 广西田园生化股份有限公司 | Super low volume liquid formulation containing trifloxystrobin |
| CN103229767A (en) * | 2013-05-09 | 2013-08-07 | 青岛奥迪斯生物科技有限公司 | Trifloxystrobin and bupirimate-containing sterilization composition |
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