CN102246784A - Antibacterial composition containing tetraconazole and pyraclostrobin - Google Patents

Antibacterial composition containing tetraconazole and pyraclostrobin Download PDF

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Publication number
CN102246784A
CN102246784A CN2011102164746A CN201110216474A CN102246784A CN 102246784 A CN102246784 A CN 102246784A CN 2011102164746 A CN2011102164746 A CN 2011102164746A CN 201110216474 A CN201110216474 A CN 201110216474A CN 102246784 A CN102246784 A CN 102246784A
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pyraclostrobin
tetraconazole
bactericidal composition
preparation
active ingredient
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葛尧伦
杨波涛
葛大鹏
韩先正
杜秀斌
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QINGDAO KYX CHEMICAL CO Ltd
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QINGDAO KYX CHEMICAL CO Ltd
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Abstract

The invention relates to an antibacterial composition, which belongs to the field of agricultural compounds. The antibacterial composition is prepared by mixing tetraconazole and pyraclostrobin, which serve as active ingredients, in a weight percentage ratio ranging from 80:1 to 1:80, preferably a weight percentage ratio ranging from 65:5 to 1:50; and the total active ingredients account for 1 to 90 percent, preferably 5 to 50 percent of the weight of the antibacterial composition, and auxiliary ingredients which are allowed to be used and acceptable in pesticide account for the balance. The antibacterial composition can be prepared into wettable powder, suspension, emulsified oil, soluble liquid, aqueous emulsion and water dispersible agent by the conventional method. The antibacterial composition disclosed by the invention is mainly used for preventing and controlling diseases caused by bacteria of Erysiphe, Puccinia, Rhynchosporium spp., Pyrenophora and Septoria.

Description

A kind of bactericidal composition that contains tetraconazole and pyraclostrobin
Technical field
The present invention relates to the agriculture chemical compounding technical field, being specifically related to a kind of is two yuan of composite bactericidal compositions of active ingredient with tetraconazole and pyraclostrobin.
Background technology
Pyraclostrobin (having another name called pyraclostrobin), English name pyraclostrobin, chemical name are 2 chloro-N-(4 ' one chlordiphenyl, one 2 one bases) vitamin PP.Be the New-type wide-spectrum bactericide; have protection, treatment and radical cure effect; diseases such as the powdery mildews of melon, vegetables, downy mildew, scab, leaf spot, eqpidemic disease had stronger control efficiency; lasting period is long; under the recommended dose to crop safety; can promote the absorption of nitrogen, strengthen the resistance of crop, improve crop quality.Its chemical structural formula is:
Figure BSA00000548032900011
Tetraconazole belongs to triazole bactericidal agent, is the environment-friendly novel agricultural chemicals of a kind of low toxicity, efficient, applied range, and absorption in tetraconazole specifically has well can be rapidly by plant absorbing and in conducted inside, and drug effect is remarkable, and is safe in utilization.Can prevent and treat Erysiphe, Puccinia, Rhynchosporium spp, nuclear cavity Pseudomonas and the microbial disease of Septoria such as wheat powdery mildew, loose smut of wheat, wheat rust, the bunt of wheat, wheat grain husk blessing disease, barley leaf blotch, loose smut of barley, barley banded sclerotial blight, maize head smut, head smut of sorghum, melon and fruit powdery mildew, sigatoka, alternaria leaf spot of apple, pear scab and grape powdery mildew etc.Suitable cereal crop such as wheat, barley, oat, rye etc., fruit tree such as banana, grape, pears, apple etc., vegetables such as melon, beet, ornamental plants etc.
Excellent characteristics such as the pyraclostrobin mode of action is very unique, has the activity of efficient, wide spectrum, treatment, protection, infiltration, interior suction, and resistance of rainwater washing against, lasting period are long do not have cross resistance with other bactericide on the present domestic market.Wherein the protection of pyraclostrobin and therapeutic activity are comparatively outstanding; but permeability and systemic activity a little less than, only have local systemic activity, become the big short slab of one in its mechanism of action; also brought some actual agricultural problems thereupon, the control of disease has been stablized inadequately etc.And tetraconazole has very strong interior absorption, and fail to agree with the pyraclostrobin mode of action, I research staff of company attempts both are composite, whether has synergistic effect to observe it, checking through a large amount of indoor biometricses and field experiment, discovery is the complex composition of active ingredient with pyraclostrobin and tetraconazole, and the preventive effect of disease is improved greatly, and quick-acting is obviously strengthened, also there is certain prolongation lasting period, and dosage is lower, has reduced agricultural cost, has improved germicidal efficiency.Both have very strong synergistic effect experiment confirm, and about being that active ingredient is carried out composite research with pyraclostrobin and tetraconazole, do not see relevant report at present at home and abroad as yet.
Summary of the invention
The object of the present invention is to provide a kind of bactericidal composition that can well solve pyraclostrobin quick-acting and the not strong problem of stability, my research staff of company is through indoor in a large number, outdoor formulation screening test is found, the pyraclostrobin of mechanism of action uniqueness and effect stability, the tetraconazole that interior absorption is good is composite to have beyond thought synergistic effect, can be good at solving the quick-acting and the stability problem of pyraclostrobin, the resistance problem of tetraconazole, and can better promote the absorption of nitrogen, strengthen the resistance of crop, improve crop quality, finished the present invention immediately.
The present invention for a kind of be that active ingredient is carried out two yuan of bactericidal composition preparations that are mixed with pyraclostrobin and tetraconazole, in the bactericidal composition wherein of the present invention the percentage by weight of active ingredient pyraclostrobin and tetraconazole can be 80: 1~1: 80, on the basis of test recipe screening targetedly, the percentage by weight of active ingredient pyraclostrobin and tetraconazole can be preferably 65: 5~1: 50.
Of the present invention is that the pesticide sterilizing composite of active ingredient is wetting powder, suspending agent, missible oil, soluble liquid, aqueous emulsion and water dispersible granules with the formulations of pesticide that the preparation method in pesticidal preparations field can be prepared into pyraclostrobin and tetraconazole, the gross mass of active ingredient accounts for 1%~90% of preparation gross mass in the preparation, be preferably 5%~50%, all the other are usual auxiliaries in the agricultural chemicals.
Pesticide sterilizing composite of the present invention is to diseases such as the powdery mildews of Erysiphe, Puccinia, Rhynchosporium spp, nuclear cavity Pseudomonas and the microbial disease of Septoria such as melon, vegetables, downy mildew, scab, leaf spot, eqpidemic diseases, and diseases such as wheat powdery mildew, loose smut of wheat, wheat rust, the bunt of wheat, loose smut of barley, barley banded sclerotial blight, maize head smut, head smut of sorghum, sigatoka, alternaria leaf spot of apple, pear scab and grape powdery mildew all have excellent preventive effect.
Bactericidal composition of the present invention has plurality of advantages, and the first, quick-acting is stronger, and the lasting period is stronger, and effect is more stable, and preventive effect improves greatly; The second, delayed the drug-fast generation of crop greatly, reduced agricultural chemicals access times repeatedly, reduced the agricultural chemicals usage amount, reduce agricultural cost; The 3rd, in environment, easily to decompose after the lasting period of this bactericidal composition, residual quantity is lower, and is friendly more to environment; Therefore the disease control to the agricultural region is significant in the application of this bactericidal composition.
Embodiment:
In order to make purpose of the present invention, technical scheme and advantage clearer, the present invention describes with following specific embodiment, but the present invention only limits to these examples absolutely not.The method that the present invention adopts indoor bioassay and field trial to combine.If no special instructions, the ratio of below mentioning (comprising percentage) all is a mass ratio.Should be pointed out that all any modifications of being made within the spirit and principles in the present invention, be equal to replacement and improvement etc., all should be included within protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Wherein prepare required necessary basis component about the formulations of pesticide and the easy manufacture implementation method as follows:
One of technical scheme of the present invention, described bactericidal composition are wetting powder, and the percentage by weight of component is:
Figure BSA00000548032900031
The concrete procedure of processing of this bactericidal composition wetting powder is: press above-mentioned prescription with active principle pyraclostrobin and active principle tetraconazole and dispersant, wetting agent and filler mixing, in stirred tank, evenly stir, behind airslide disintegrating mill, mixing, promptly can be made into the wetting powder of the present composition.
Two of technical scheme of the present invention, described bactericidal composition are suspending agent, and the percentage by weight of component is:
Figure BSA00000548032900032
The concrete production stage of this suspending agent is earlier other auxiliary agents to be mixed, mix through high speed shear, add active principle pyraclostrobin and active principle tetraconazole, abrading-ball is 2~3 hours in ball crusher, make a diameter all below 5mm, make the suspending agent preparation of bactericidal composition of the present invention.
Three of technical scheme of the present invention, described bactericidal composition are aqueous emulsion, and the percentage by weight of component is:
Figure BSA00000548032900033
The concrete production stage of this aqueous emulsion is: at first former medicine active principle pyraclostrobin is added with active principle tetraconazole, solvent and emulsifier, cosolvent and be in the same place, make and be dissolved into uniform oil phase; With part water, antifreeze, other insecticides adjuvant such as antimicrobial mixes into uniform water; When the reactor high speed stirs, oil phase is added water, slowly add water, open clipper and carry out high speed shear, and add remaining water, shear half an hour approximately, form the aqueous emulsion of oil-in-water type until reaching the phase inversion point.Promptly make the aqueous emulsion of bactericidal composition of the present invention.
Four of technical scheme of the present invention, described bactericidal composition are water dispersible granules, and the percentage by weight of component is:
Figure BSA00000548032900041
The concrete procedure of processing of this bactericidal composition water dispersible granules is: by above-mentioned prescription active principle pyraclostrobin, active principle tetraconazole and dispersant, wetting agent, disintegrant and filler are mixed, pulverize with micro jet, through mediating, add then and carry out granulation, drying, screening in the fluidized bed prilling dryer after sample analysis, promptly make the water dispersible granules of bactericidal composition of the present invention.
Five of technical scheme of the present invention, described Pesticidal combination are cream preparation, and the mass percent of component is:
Figure BSA00000548032900042
The concrete production stage of this cream preparation adds emulsifier, the synergist back that stirs after the dissolving fully again and becomes the oily liquids of transparent and homogeneous for earlier active ingredient pyraclostrobin, tetraconazole being added in the solvent, can promptly can be made into the cream preparation of the present composition.
Described emulsifier is selected from any one or more mixtures formed with arbitrary proportion in calcium dodecyl benzene sulfonate and 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 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), the water equal solvent.
Described dispersant is selected from one or more in polycarboxylate, 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, draw back in powder copper rosinate X., wetting and penetrating agent F, alkylnaphthalene sulfonate, polyoxyethylene triphenylethylene phosphenylic acid salt, spaonin powder, silkworm excrement, the soapberry powder one or more.
Described disintegrant is selected from: one or more in bentonite, urea, ammonium sulfate, aluminium chloride, citric acid, succinic acid, the sodium bicarbonate.
Described thickener is selected from: one or more in xanthans, CMC, hydroxyethylcellulose, methylcellulose, Magnesiumaluminumsilicate, the polyvinyl alcohol.
Described stabilizing agent is selected from: a kind of in sodium citrate, the resorcinol.
Described antifreezing agent is selected from: one or more in ethylene glycol, propane diols, the glycerine.
Described defoamer is selected from: silicone oil, silicone compound, C 10-20Saturated fat acid compounds, C 8-10In the aliphatic alcohols compound one or more.
Described filler is selected from: one or more in kaolin, diatomite, bentonite, attapulgite, white carbon, starch, the precipitated calcium carbonate.
Indoor virulence test and field experiment
The indoor virulence measuring:
Biologicall test example 1:
(1) experimental subjects:
The powdery mildew of cucumber germ, separation and purification gained from the powdery mildew of cucumber incidence of leaf of Shouguang, Shandong cucumber booth is cultivated in 4 ℃ of refrigerators on the PDA inclined-plane and is preserved.
For trying medium:
PDA medium: potato 200g, glucose 20g, agar 20g, water 1000ml.
AEA medium: dusty yeast 5g/L, glycerine 20mL/L, MgSO 40.25g/L, NaNO 36g/L, KCl 0.5g/L, KH 2PO 41.5g/L, agar powder 20g/L, deionized water 1L.
(2) experimental pharmacy:
The former medicine of 94% tetraconazole, Italian Sai Ge company, the former medicine of 95% pyraclostrobin, BASF European Co.,Ltd.
Combination setting is mixed:
14% tetraconazole pyraclostrobin percentage composition was respectively 1: 13,3: 11,5: 9,7: 7,9: 5, i.e. 1%+13%, 3%+11%, 5%+9%, 7%+7%, 9%+5% totally 5 combinations that are mixed.
(3) test method:
Single agent is to the toxicity test of powdery mildew of cucumber germ:
Tetraconazole and pyraclostrobin dissolve with proper amount of acetone, are made into the mother liquor of 10000 μ g/ml, preserve in 4 ℃ of following low temperature, and be stand-by, is diluted to a series of concentration with sterile water before the test.
The powdery mildew of cucumber germ after pre-cultivation the on the AEA medium, is inoculated in the bacterium dish of diameter 5mm respectively on the AEA flat board that contains the variable concentrations gradient, cultivates down in 25 ℃ of dark conditions.Every processing repeats 3 times.When control strain colony diameter length is above to 6.5c m, adopt " right-angled intersection method " to measure.According to the linear regression analysis between the logarithm value of the probit value of inhibiting rate and medicine series concentration, obtain the EC that two kinds of single agent suppress mycelial growths 50Value, correlation coefficient and virulence regression equation.
On the basis of preliminary experiment, respectively single agent tetraconazole and pyraclostrobin are carried out toxicity test, EC in order to last method 50Value is followed successively by 3.69mg/l and 7.25mg/l.
The mixture toxicity test:
Carry out the toxicity test of mixture according to mixed ratio with single agent toxicity test method.
EC that each that will measure according to the abundant method of Sun Yun handled 50Value is converted into the actual toxicity index (ATI) of using with; According to the proportioning of mixture, obtain theory and use toxicity index (TTI) with, calculate the co-toxicity coefficient (CTC) of mixture by following formula.
Single agent toxicity index=(standard medicament EC 50/ reagent agent EC 50) * 100
ATI=(standard medicament EC 50/ reagent agent (using with) EC 50) * 100
The content (%) of toxicity index * B in using with of content (the %)+B of toxicity index * A of TII=A in using with
CTC=(ATI/TTI)×100
If co-toxicity coefficient is greater than 120, showing has synergistic effect; If be starkly lower than 100 (below 80), be indicated as antagonism; Between 100~120, be indicated as summation action.
(4) experimental result and analysis:
The composite co-toxicity test of table 1 tetraconazole and pyraclostrobin to the powdery mildew of cucumber germ
The composite co-toxicity test of table 2 tetraconazole and pyraclostrobin to the powdery mildew of cucumber germ
Test medicine Mass ratio The actual measurement poison refers to Theoretical poison refers to Co-toxicity coefficient Conclusion
Tetraconazole 1∶0 100.00 100.00 / /
Pyraclostrobin 0∶1 50.90 50.90 / /
Tetraconazole: pyraclostrobin 1∶13 82.36 54.40 151.39 Synergy
Tetraconazole: pyraclostrobin 3∶11 110.09 61.42 179.24 Synergy
Tetraconazole: pyraclostrobin 5∶9 114.33 68.43 167.06 Synergy
Tetraconazole: pyraclostrobin 7∶7 115.79 75.45 153.47 Synergy
Tetraconazole: pyraclostrobin 9∶5 120.71 82.46 146.38 Synergy
Show according to above indoor virulence test measurement result, tetraconazole and pyraclostrobin all have synergistic effect preferably by the percentage composition of experiment, wherein with tetraconazole: pyraclostrobin is that 3: 11 o'clock co-toxicity coefficient is up to 179.24, thinks that tetraconazole and pyraclostrobin percentage composition are that 3: 11 o'clock synergistic effects are best.Suggestion is carried out further field control effectiveness test to the mixture preparation of 3: 11 left and right sides scopes of suitable proportion, to estimate its field practical application effect.
Biologicall test example 2: the composite Toxicity Determination of tetraconazole and pyraclostrobin to cucumber downy mildew.
Bacterium of downy mildew of cucumber, separation and purification gained from the cucumber incidence of leaf of field is cultivated in 4 ℃ of refrigerators on the PDA inclined-plane and is preserved.
Single agent tetraconazole and pyraclostrobin are carried out toxicity test, EC 50Value is followed successively by 4.13mg/l and 7.29mg/l.
Combination setting is mixed:
15% tetraconazole pyraclostrobin percentage composition was respectively 2: 13,4: 11,6: 9,8: 7,10: 5, i.e. 2%+13%, 4%+11%, 6%+9%, 8%+7%, 10%+5% totally 5 combinations that are mixed.
Test method is with biologicall test embodiment 1
Experimental result and analysis:
The composite virulence experiment of table 3 tetraconazole and pyraclostrobin to the cucumber downy mildew germ
The composite co-toxicity test of table 4 tetraconazole and pyraclostrobin to the cucumber downy mildew germ
Figure BSA00000548032900082
Show according to above indoor virulence test measurement result, the used tetraconazole and the percentage composition of pyraclostrobin all have synergistic effect in the experiment, wherein the co-toxicity coefficient when the percentage composition of tetraconazole and pyraclostrobin is 4: 11 is 166.27 to the maximum, thinks that promptly 4: 11 o'clock synergistic effects of percentage composition of tetraconazole and pyraclostrobin are best.Suggestion is carried out further field control effectiveness test to the mixture preparation of 4: 11 left and right sides scopes of suitable proportion, to estimate its field practical application effect.
Field trial 1: to the preventive effect of powdery mildew of cucumber
(1) investigation method
Experimental field be located at Shouguang, Shandong, publish the medium cucumber field of course of disease degree for experimental field, soil fertility is medium, and irrigation and drainage are convenient.Adopt the bilinear sampling method, 5 points are got in every sub-district, look into 5 caves at every, and 2 blades in the fixing middle part of every strain fix a point to check during investigation.
Come classification according to the powdery mildew of cucumber grade scale, write down total strain number, diseased plant number, degree of being in a bad way, calculate diseased plant rate, disease index and preventive effect.The powdery mildew of cucumber grade scale is:
0 grade: no scab;
1 grade: lesion area accounts for below 5% of whole leaf area;
3 grades: lesion area accounts for 6%~10% of whole leaf area;
5 grades: lesion area accounts for 11%~25% of whole leaf area;
7 grades: lesion area accounts for 26%~50% of whole leaf area;
9 grades: lesion area accounts for more than 50% of whole leaf area.
Test is investigated 3 times altogether, i.e. disease index investigation before the medicine, preventive effect investigation in 10 days behind the 1st medicine, 10 days and preventive effect investigation in 20 days behind 2 medicines.
(2) control time and number of times
Test is investigated 3 times altogether, i.e. disease index investigation before the medicine, preventive effect investigation in 10 days behind the 1st medicine, 10 days and preventive effect investigation in 20 days behind 2 medicines.
(3) drug effect computational methods
Sick leaf rate (the %)=sick number of sheets/investigate total number of sheets * 100
Disease index=∑ (the sick numbers of sheets at different levels * relative level numerical value)/(investigating total number of sheets * 9) * 100
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
(4) poisoning investigation method
Whether continuous 7d range estimation medicament has poisoning to crop after the dispenser.
(5) experimental result and analysis
Table 5 is respectively organized the test medicine processing and is prevented and treated the test effect of powdery mildew of cucumber
Figure BSA00000548032900091
Interpretation of result:
Can know that by table 5 effect that the combination that is mixed of 3% tetraconazole+11% pyraclostrobin prevents and treats powdery mildew of cucumber is very remarkable.Under same 8,10 milliliters every mu consumption, the effect of complex preparation significantly is better than two kinds of single agent, and its quick-acting and lasting effect are all relatively good, and is the most outstanding with lasting effect especially.Complex preparation significantly is better than effect under the low concentration consumption in control efficiency under the consumption of high concentration.20 days preventive effects reach 91.84% after 10 days best control efficiency behind the 1st, 2 medicine reaches 87.43% and 91.72%, the 2 medicine respectively.And single agent 4% tetraconazole EW, 10 days the highest preventive effect is 82.14% behind the 2nd medicine, 10 days preventive effects are 84.66% behind the 2nd medicine of single agent 25% pyraclostrobin EC, the effect of complex preparation significantly is better than two kinds of single agent, not only significantly improved effect, and further prolonged its lasting period for the powdery mildew of cucumber germ.
Field trial 2: to the preventive effect of wheat powdery mildew
(1) basic condition experimental field:
Experimental field be located at Henan, publish the medium wheat paddock of course of disease degree for experimental field, soil fertility is medium, and irrigation and drainage are convenient.Dispenser weather in March on the same day 31 is clear to cloudy, 11 ℃ of mean temperature of air, relative moisture 81%, 2~3 grades of southerlies; April 7 was fine, 18.2 ℃ of mean temperature of air, relative moisture 60%, 2~3 grades of southerlies.
(2) spraying time and method
At the 1st medicine of wheat powdery mildew their early stage (March 31) spray, (April 7) spray medicine second time sprays 2 times altogether behind the 7d.(operating pressure 0.2~0.3MPa), 750L carries out foliar spray according to the per hectare amount of liquid medicine to adopt the 3WBS-16 knapsack sprayer.
(3) pilot survey and data are handled
Investigation state of an illness radix before the medicine, test is investigated 3 times altogether, i.e. disease index investigation before the medicine, preventive effect investigation in 10 days behind the 1st medicine, 10 days and preventive effect investigation in 20 days behind 2 medicines.
(4) drug effect computational methods
Sick leaf rate (the %)=sick number of sheets/investigate total number of sheets * 100
Disease index=∑ (the sick numbers of sheets at different levels * relative level numerical value)/(investigating total number of sheets * 9) * 100
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
(5) poisoning investigation method
Whether continuous 7d range estimation medicament has poisoning to crop after the dispenser.
(6) experimental result and analysis
Table 6 is respectively organized the test effect that test medicine is handled the control wheat powdery mildew
Figure BSA00000548032900101
Interpretation of result:
As shown in Table 6, the effect of the combination control wheat powdery mildew that is mixed of 4% tetraconazole+13% pyraclostrobin is more remarkable, behind the medicine 10 days for the first time, for the second time 10 days and 20 days preventive effects 88.35%, 93.02% and 93.08% the highest behind the medicine, 20 days preventive effects the highest are 82.56% behind the 10% tetraconazole EW medicine second time, 20 days preventive effect is up to 82.67% behind the 25% pyraclostrobin EC medicine second time, the effect of complex preparation significantly is better than two kinds of single agent, not only significantly improved effect, and further prolonged its lasting period for wheat powdery mildew.
Comprehensive above experiment is described, it is right to carry out two yuan of bactericidal composition preparations that are mixed with tetraconazole and pyraclostrobin active ingredient, Erysiphe, Puccinia, Rhynchosporium spp, the microbial disease of nuclear cavity Pseudomonas and Septoria such as melon, the powdery mildew of vegetables, downy mildew, scab, leaf spot, diseases such as eqpidemic disease, wheat powdery mildew, loose smut of wheat, wheat rust, the bunt of wheat, loose smut of barley, the barley banded sclerotial blight, maize head smut, head smut of sorghum, sigatoka, alternaria leaf spot of apple, disease such as pear scab and grape powdery mildew all has excellent preventive effect, can effectively suppress further developing of disease, simultaneously to crop safety, suggestion is promoted the use of, in use should be used alternatingly, to delay the pesticide resistance of plant with other different mechanisms medicines.

Claims (5)

1. pesticide sterilizing composite, it is characterized in that: this bactericidal composition is to be the preparation of two yuan of composite bactericidal compositions of active ingredient with tetraconazole and pyraclostrobin, all the other components are that usual auxiliaries is or/and supply filler in the agricultural chemicals in the preparation, and wherein the percentage by weight of active ingredient tetraconazole and pyraclostrobin is 80: 1~1: 80 in this bactericidal composition.
2. bactericidal composition according to claim 1 is characterized in that: specifically giving birth on survey and the field experiment basis targetedly, the percentage by weight of active ingredient tetraconazole and pyraclostrobin can be preferably 65: 5~1: 50 in this bactericidal composition preparation.
3. bactericidal composition according to claim 1 is characterized in that: active ingredient tetraconazole and pyraclostrobin gross mass account for 1%~90% of whole preparation gross mass in this bactericidal composition preparation.
4. bactericidal composition according to claim 3 is characterized in that: active ingredient tetraconazole and the pyraclostrobin gross weight percentage composition in preparation is preferably 5%~50%.
5. according to the described bactericidal composition of claim 1 to 4, it is characterized in that: the pesticidal preparations formulation that bactericidal composition of the present invention can be mixed with is wetting powder, suspending agent, missible oil, soluble liquid, aqueous emulsion and water dispersible granules.
CN2011102164746A 2011-07-24 2011-07-24 Antibacterial composition containing tetraconazole and pyraclostrobin Pending CN102246784A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103947664A (en) * 2014-05-13 2014-07-30 浙江乐吉化工股份有限公司 Tetraconazole-containing bactericide composition
CN104322501A (en) * 2012-08-15 2015-02-04 陕西美邦农药有限公司 Chesulfamide-containing efficient sterilization composition

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104322501A (en) * 2012-08-15 2015-02-04 陕西美邦农药有限公司 Chesulfamide-containing efficient sterilization composition
CN103947664A (en) * 2014-05-13 2014-07-30 浙江乐吉化工股份有限公司 Tetraconazole-containing bactericide composition

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Application publication date: 20111123