CN102172240A - Bactericidal composition containing benziothiazolinone and methoxyl acrylic ester type bactericides - Google Patents
Bactericidal composition containing benziothiazolinone and methoxyl acrylic ester type bactericides Download PDFInfo
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- CN102172240A CN102172240A CN2011100484114A CN201110048411A CN102172240A CN 102172240 A CN102172240 A CN 102172240A CN 2011100484114 A CN2011100484114 A CN 2011100484114A CN 201110048411 A CN201110048411 A CN 201110048411A CN 102172240 A CN102172240 A CN 102172240A
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Abstract
The invention relates to a bactericidal composition. The bactericidal composition comprises the following active ingredients: A, benziothiazolinone; and B, a methoxyl acrylic ester type bactericide such as kresoxim-methyl, ZJ0712, azoxystrobin, trifloxystrobin, enestroburin and SYP-1620, wherein the mass ratio of the A to the B is 50:1 to 1:50, preferably 10:1 to 1:20, and the balance is auxiliary materials which are allowed and acceptable in pesticide. The composition can be prepared into any formulation suitable for agricultural use by known methods, and the preferable formulations are wettable power, suspension, water dispersible granules and aqueous emulsion. After the combination of the benziothiazolinone and the methoxyl acrylic ester type bactericides, the synergism is obviously achieved, and the bactericidal composition can be mainly used for preventing and controlling deceases of plants such as vegetables, fruit trees, rice and wheat.
Description
Technical field
The present invention relates to a kind of bactericidal composition, particularly contain the composition of mould ketone of thiophene and methoxy acrylic bactericide, be mainly used in the disease control of crops such as vegetables, fruit tree, paddy rice, wheat.
Background technology
In recent years, because single drug and the medication of non-science, caused many kinds of pathogens that the agricultural chemicals of current use has been produced resistance, very general as pesticide resistance such as white powder germ, ash arrhizus bacteria, Pseudoperonospora cubensis, become a great problem of chemical control.In some disease serious zone takes place, conventional pesticide uses separately and is difficult to control, and poor effect, has a strong impact on the high yield of grain.Because germ produces resistance, the frequent dispenser of peasant causes burden and increasing environmental pollution again.Therefore, be badly in need of the bactericide new varieties of efficient, low toxicity, safety, environmental protection.
The mould ketone of thiophene (Benziothiazolinone) belongs to different thiazoles compound, be a kind of efficient, low toxicity, broad-spectrum germicide, its mechanism of action mainly is: combine with the anion of the surface of cell membrane of bacterium, fungi or react with sulfydryl, destroy the synthetic system of protein and cell membrane, suppress breeding, the interference pathogen cell metabolism of bacterium, fungi, make its physiologic derangement cause pathogen death.This compound is to all having good control efficiency because of bacterium, fungus-caused corps diseases.The mould ketone of the thiophene of Shaanxi Xida Huate Science ﹠ Technology Industrial Co., Ltd.'s development and production is formally registered in first acquisition Ministry of Agriculture agricultural chemicals in 2008 as disinfectant use in agriculture, and applies.This product all has good control efficiency to rot, canker, anthracnose, scab, leaf spot, the downy mildew of crops, and fool proof to crops.
Methoxy acrylic (strobilurins) bactericide is a kind of low toxicity, efficient, wide spectrum, systemic fungicide, has protection, treatment and eradicant action.Its mechanism of action is to act on the cytochrome compound, and the electron transfer process of blocking-up germ mitochondrial respiratory chain suppresses the supply of germ cellular energy, makes the germ cell lack energy death.This series bactericidal agent comprises kresoxim-methyl, ZJ0712, Fluoxastrobin and Enestroburin etc., germs such as Ascomycetes, Basidiomycetes, deuteromycetes and Oomycete all there is good activity, can prevents and treats the diseases such as powdery mildew, rust, downy mildew, eqpidemic disease, anthracnose and rice blast of various crop.To crop, people and animals and beneficial organism safety, and there is not cross resistance with other bactericide commonly used.But,, easily develop immunity to drugs because action site is single.The existing report that produces resistance in Europe.
Summary of the invention
In order to satisfy the demand of agricultural production, make full use of two kinds of active components be mixed the synergistic effect that produced, improve preventive effect and delay the drug-fast generation of germ, the present invention proposes a kind of efficient, low toxicity, environmental protection and help the bactericidal composition that contains mould ketone of thiophene and methoxy acrylic ester compounds of germ resistance management.
Another object of the present invention provides a kind of application of bactericidal composition in crop pests such as vegetables, fruit tree, paddy rice, wheat that contains mould ketone of thiophene and methoxy acrylic ester compounds.
In order to address the above problem, the inventor finds that by test the bactericidal composition that contains mould ketone of thiophene and methoxy acrylic ester compounds that the present invention proposes has obvious synergistic effect, and the control efficiency of corps diseases is obviously improved.The mould ketone of thiophene is different with the methoxy acrylic ester compounds structure type, mechanism of action is different, and the two is composite can to enlarge fungicidal spectrum, and can delay drug-fast generation of pathogen and development speed to a certain extent.
On the basis of above-mentioned discovery, through composition is carried out symphyogenetic quantitative analysis, determine optimal proportion, formed technical scheme of the present invention, both with the mould ketone of (A) thiophene and (B) methoxy acrylic bactericide kresoxim-methyl, ZJ0712, Fluoxastrobin, oxime bacterium ester, Enestroburin or alkene oxime amine etc. are active ingredient, the mass ratio of A and B is 50: 1-1: 50, and ratio is 10 preferably: 1-1: 20, all the other are to allow in the agricultural chemicals to use and the acceptable auxiliary element.
Bactericidal composition of the present invention can be prepared into known method and be fit to any one formulation that agricultural is used, and reasonable formulation is wetting powder, suspending agent, water dispersible granules, aqueous emulsion.
The auxiliary agent that uses in the composition of the present invention comprises that solvent, dispersant, emulsifier, stabilizing agent, antifreezing agent, thickener etc. and other are of value to the known substance that active ingredient is stablized and drug effect is brought into play in preparation, all be the various compositions of using or allow use in the pesticidal preparations always, be not particularly limited, concrete composition and consumption require to determine by simple experiment according to prescription.
Product described in the invention can provide with the finished product preparation form, and promptly each material mixes in the composition, and the composition of composition also can provide with single agent form, directly directly mixes in bucket or jar before the use, is diluted to required concentration then.
Bactericidal composition of the present invention can be used for preventing and treating the various agricultural disease, be mainly used in the disease control on vegetables, fruit tree, paddy rice and the wheat crop, especially cucumber downy mildew, pepper anthracnose, powdery mildew of cucumber, pear scab, apple tree scab, apple tree spot defoliation, sigatoka, grape powdery mildew, apple tree ring spot, rice sheath blight disease, wheat powdery mildew, wheat rust etc.
Compared with prior art, beneficial effect of the present invention is: 1. being mixed has obvious synergistic effect, has improved control efficiency; 2. composition is made up of two kinds of different active ingredients of mechanism of action, helps overcoming and delaying the pesticide resistance of germ; 3. enlarged the control spectrum; 4. reduce dosage, thereby reduced cost and the pollution that has alleviated environment.
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 is limited to these examples absolutely not.The following stated only is the present invention embodiment preferably, only in order to explain the present invention, can not therefore be interpreted as the restriction to claim of the present invention.
The combination of active principles of different agricultural chemicals is made agricultural chemicals, is a kind of mode effectively and efficiently that exploitation at present and development novel pesticide and control agricultural go up the resistance germ.The agricultural chemicals of different cultivars shows three kinds of type of action: summation action, synergistic effect and antagonism after mixing usually.But be specially which kind of effect, unpredictable, just just can know by a large amount of tests.Compound synergic is well filled a prescription, owing to obviously improved actual control efficiency, reduced the usage amount of agricultural chemicals, thereby delayed the drug-fast generation speed of germ widely, and be the important means of integrated control disease.
The inventor is by a large amount of screening tests, find that mould ketone of thiophene and methoxy acrylic bactericide combination antagonism downy mildew, white powder germ, ash arrhizus bacteria etc. have synergistic function significantly, and be not only the simple addition (seeing the biologicall test example for details) of two kinds of medicaments
Biologicall test example 1
Mould ketone of thiophene and ZJ0712 are composite to the bacterium of downy mildew of cucumber pot experiment
Subjects: the bacterium of downy mildew of cucumber (pseudoperonospora cubensis) that picks up from the field
Test method: with reference to " the agricultural industry criteria NY/T1156.11-2008 of the People's Republic of China (PRC) ".Pot-culture method is chosen two leaf period cucumber seedlings of growing way basically identical as being experiment material, and 5 basin cucumber seedlings are selected in each processing for use, and numbering is for examination.Take from field cucumber downy mildew blade, with writing brush germ is used sterile water wash, being mixed with concentration is the sporidesm suspension of 3 * 105 sporidesm/milliliters, and spray inoculation is (10 milliliters of every processing) on cucumber bacterium blade face.Chemicals treatment is carried out in the cultivation of preserving moisture after the inoculation behind the 24h.Test medicine is referring to table 1.Under 50PSI pressure, spray every basin 5mL with the Potter spray tower.Be treated to blank to spray the equivalent clear water.After the spraying, the cucumber bacterium is put into phytotron cultivate.Investigate whole blades and record statistics according to the cucumber downy mildew grade scale behind the 7d, calculate disease index and control efficiency.
Control efficiency is converted into probability value (y), and liquor strength (μ g/mL) converts logarithm value (x) to, calculates concentration EC in virulence equation and the inhibition with method of least squares
50, according to the toxicity index and the co-toxicity coefficient (CTC) of the abundant method calculating of Sun Yun medicament.
Actual measurement toxicity index (ATI)=(standard medicament EC
50/ reagent agent EC
50) * 100
The percentage composition of B in percentage composition+B medicament toxicity index * mixture of A in theoretical toxicity index (TTI)=A medicament toxicity index * mixture
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (the ATI)/theoretical toxicity index (TTI) of mixture] * 100
When CTC≤80, the composition performance is antagonism; When 80＜CTC＜120, the composition performance is summation action; When CTC 〉=120, the composition performance is synergistic effect.
Measurement result sees Table the mould ketone of 1 thiophene and ZJ0712 proportioning 50: 1-1: between 50, bacterium of downy mildew of cucumber is had synergistic effect, especially 10: 1-1: between 20, synergistic effect is more obvious, and co-toxicity coefficient is more than 200.
Mould ketone of table 1 thiophene and ZJ0712 are to cucumber downy mildew pot experiment measurement result
Biologicall test example 2
The composite Toxicity Determination of mould ketone of thiophene and kresoxim-methyl to the wheat powdery mildew germ
Subjects: the wheat powdery mildew that picks up from the field
Test method: with reference to " the agricultural industry criteria NY/T1154.7-2006 of the People's Republic of China (PRC) ".The sick leaf of the wheat powdery mildew that picks up from the field is evenly shaken off conidium inoculate above wheat seedling, carry out chemicals treatment behind the 24h, test medicine and toxicity test the results are shown in Table 2.ATI, TTI and CTC computing formula are with biologicall test example 1.
Biologicall test example 3
Mould ketone of thiophene and azoxystrobin compound are to the Toxicity Determination of botrytis cinerea pers
Subjects: the botrytis cinerea pers that picks up from the field
Test method: with reference to " the agricultural industry criteria NY/T1154.7-2006 of the People's Republic of China (PRC) ", the mycelial growth rate method.With botrytis cinerea pers PDA medium culture, when treating that bacterium colony has just covered with culture dish, be that the card punch of 7mm punches from the edge with internal diameter, the mycelia piece that breaks into is as inoculum.Get the soup 5ml for preparing and quantitative 75ml sterilising medium respectively and mix, make 4 pastille flat boards, be mixed into contrast with equivalent sterile water and medium.The mycelia piece is inverted is connected to dull and stereotyped central authorities, and with 28 ℃ of incubators in cultivate.Behind the 7d, measure colony diameter, calculate and respectively handle the clean amount of growth of mycelia, mycelial growth inhibition rate with the right-angled intersection method.
Clean amount of growth (mm)=measurement colony diameter-7
Mycelial growth rate (%)=[(the clean amount of growth of the clean amount of growth-processed group of control group)/clean amount of growth of control group] * 100
With mycelial growth rate probability value (y), liquor strength (μ g/mL) converts logarithm value (x) to, calculates concentration EC in virulence equation and the inhibition with method of least squares
50, according to the toxicity index and the co-toxicity coefficient (CTC) of the abundant method calculating of Sun Yun medicament.Statistical analysis technique is with biologicall test example 2.Toxicity test the results are shown in Table 3.
Biologicall test example 4
The composite Toxicity Determination of mould ketone of thiophene and Enestroburin to the alternaria leaf spot of apple bacterium
Subjects: the alternaria leaf spot of apple bacterium of picking up from the field
Test method: with reference to " the agricultural industry criteria NY/T1154.7-2006 of the People's Republic of China (PRC) ", the mycelial growth rate method.Test method is with biologicall test example 3, and toxicity test the results are shown in Table 4.
The composite Toxicity Determination result of mould ketone of table 2 thiophene and kresoxim-methyl to wheat powdery mildew
Mould ketone of table 3 thiophene and azoxystrobin compound are to the Toxicity Determination result of botrytis cinerea pers
The composite Toxicity Determination result of mould ketone of table 4 thiophene and Enestroburin to the alternaria leaf spot of apple bacterium
The result of table 2 shows, mould ketone of thiophene and kresoxim-methyl are at proportioning 50: 1-1: between 50, wheat powdery mildew is had obvious synergistic effect, especially 20: 1-1: between 10, co-toxicity coefficient is more than 150.
The result of table 3 shows, mould ketone of thiophene and Fluoxastrobin are at proportioning 50: 1-1: between 50, botrytis cinerea pers is had obvious synergistic effect, especially 20: 1-1: between 10, synergistic effect is more obvious, and co-toxicity coefficient is more than 170.
The result of table 4 shows, mould ketone of thiophene and Enestroburin are at proportioning 50: 1-1: between 50, the alternaria leaf spot of apple bacterium is had obvious synergistic effect, especially 20: 1-1: between 10, co-toxicity coefficient is more than 160.
Fungicidal composition of the present invention can be prepared into known method and be fit to any one formulation that agricultural is used, and reasonable formulation is wetting powder, water dispersible granules, suspending agent and aqueous emulsion.Below describe with specific embodiment.Percentage all is weight percentage in all prescriptions.The processing technology of the various preparations of the present composition is prior art, can change to some extent according to different situations.
Embodiment 1
The ratio of each component such as active component, dispersant, wetting agent and water in prescription mixed, after grinding and/or high speed shear, obtain the mould ketone kresoxim-methyl of 15% thiophene suspending agent.
Kresoxim-methyl in the present embodiment is replaceable to be methoxy acrylic bactericides such as ZJ0712, Fluoxastrobin, oxime bacterium ester, Enestroburin, alkene oxime amine, forms new embodiment.
This embodiment is applied to prevent and treat gray mold of cucumber.The mould ketone kresoxim-methyl of 15% thiophene suspending agent is pressed the spraying of 250ga.i./ha thin up, and 7 days control efficiency is 94.3% behind the medicine.500ga.i./ha pressed by the mould ketone suspending agent of 20% thiophene and 30% kresoxim-methyl suspending agent is pressed 500g a.i./ha, the thin up spraying, and 7 days control efficiency is respectively 88.2% and 63.5% behind the medicine.The synergistic effect of the composite back of mould ketone of thiophene and kresoxim-methyl is obvious, to the control efficiency of gray mold of cucumber significantly better than single agent; Because the pharmacy effect raising obviously reduces when the amount ratio of active ingredient uses separately in the compound drug, thereby also alleviated pollution to environment.
Embodiment 2
Active component, various auxiliary agent and filler etc. are fully mixed in the ratio of prescription, after ultrafine crusher is pulverized, promptly get the mould ketone Fluoxastrobin of 25% thiophene wetting powder.
Fluoxastrobin in the present embodiment is replaceable to be methoxy acrylic bactericides such as kresoxim-methyl, ZJ0712, oxime bacterium ester, Enestroburin, alkene oxime amine, forms new embodiment.
This embodiment is applied to prevent and treat grey mould fruit rot of strawberry.The mould ketone Fluoxastrobin of 25% thiophene wetting powder is pressed the spraying of 200ga.i./ha thin up, and 7 days control efficiency is 93.6% behind the medicine.500ga.i./ha pressed by the mould ketone suspending agent of 20% thiophene and 25% Fluoxastrobin suspending agent is pressed 500g a.i./ha, the thin up spraying, and 7 days control efficiency is respectively 86.4% and 68.7% behind the medicine.Synergistic effect is obvious behind mould ketone of thiophene and the azoxystrobin compound, and significantly better than single agent, and the consumption of active ingredient obviously reduces to the control efficiency of grey mould fruit rot of strawberry.
Embodiment 3
The ratio of each component such as active component, dispersant, wetting agent and water in prescription mixed, after grinding and/or high speed shear, obtain the mould ketone kresoxim-methyl of 12% thiophene suspending agent.
Kresoxim-methyl in the present embodiment is replaceable to be methoxy acrylic bactericides such as ZJ0712, Fluoxastrobin, oxime bacterium ester, Enestroburin, alkene oxime amine, forms new embodiment.
This embodiment is applied to prevent and treat early blight of tomato.The mould ketone kresoxim-methyl of 12% thiophene suspending agent is pressed the spraying of 250ga.i./ha thin up, and 7 days control efficiency is 93.1% behind the medicine.500ga.i./ha pressed by the mould ketone suspending agent of 20% thiophene and 30% kresoxim-methyl suspending agent is pressed 500g a.i./ha, the thin up spraying, and 7 days control efficiency is respectively 87.6% and 54.9% behind the medicine.The synergistic effect of the composite back of mould ketone of thiophene and kresoxim-methyl is obvious, and significantly better than single agent, and the consumption of active ingredient obviously reduces to the control efficiency of early blight of tomato.
Embodiment 4
The ratio of each component such as active component, dispersant, wetting agent and water in prescription added in the mixing kettle, and water supplies 100%, mixes, and obtains the mould ketone Enestroburin of 13% thiophene suspending agent after grinding and high speed shear.
Enestroburin in the present embodiment is replaceable to be methoxy acrylic bactericides such as kresoxim-methyl, ZJ0712, Fluoxastrobin, oxime bacterium ester, alkene oxime amine, forms new embodiment.
This embodiment is applied to prevent and treat alternaria leaf spot of apple.The mould ketone Enestroburin of 13% thiophene suspending agent is pressed the spraying of 250ga.i./ha thin up, and 7 days control efficiency is 94.3% behind the medicine.400ga.i./ha pressed by the mould ketone suspending agent of 20% thiophene and 20% Enestroburin suspending agent is pressed 400g a.i./ha, the thin up spraying, and 7 days control efficiency is respectively 73.1% and 87.6% behind the medicine.The synergistic effect of the composite back of mould ketone of thiophene and Enestroburin is obvious, and significantly better than single agent, and the consumption of active ingredient obviously reduces to the control efficiency of alternaria leaf spot of apple.
Embodiment 5
Former medicine, solvent, emulsifier are added together, make and be dissolved into even oil phase; With water-soluble component and the mixed water that gets of water; Under high-speed stirred, oil phase is mixed with water, make the mould ketone kresoxim-methyl of 15% thiophene aqueous emulsion.
Kresoxim-methyl in the present embodiment is replaceable to be methoxy acrylic bactericides such as ZJ0712, Fluoxastrobin, oxime bacterium ester, Enestroburin, alkene oxime amine, forms new embodiment.
This embodiment is applied to prevent and treat the ring rot of apple disease.The mould ketone kresoxim-methyl of 15% thiophene aqueous emulsion is pressed the spraying of 300ga.i./ha thin up, and 7 days control efficiency is 91.2% behind the medicine.400ga.i./ha pressed by the mould ketone suspending agent of 20% thiophene and 30% kresoxim-methyl suspending agent is pressed 400g a.i./ha, the thin up spraying, and 7 days control efficiency is respectively 83.8% and 77.9% behind the medicine.The synergistic effect of the composite back of mould ketone of thiophene and kresoxim-methyl is obvious, the control efficiency of ring rot of apple significantly better than single agent, because pharmacy effect improves, is obviously reduced when the amount ratio of active ingredient uses separately in the compound drug, thereby also alleviated pollution to environment.
Embodiment 6
Former medicine, solvent, emulsifier are added together, make and be dissolved into even oil phase; With water-soluble component and the mixed water that gets of water; Under high-speed stirred, oil phase is mixed with water, make the mould ketone azoxystrobin water emulsion of 14% thiophene.
Fluoxastrobin in the present embodiment is replaceable to be methoxy acrylic bactericides such as kresoxim-methyl, ZJ0712, oxime bacterium ester, Enestroburin, alkene oxime amine, forms new embodiment.
This embodiment is applied to prevent and treat wheat powdery mildew.The mould ketone azoxystrobin water emulsion of 14% thiophene is pressed the spraying of 100ga.i./ha thin up, and 7 days control efficiency is 95.8% behind the medicine.200ga.i./ha pressed by the mould ketone suspending agent of 10% thiophene and 25% Fluoxastrobin suspending agent is pressed 200g a.i./ha, the thin up spraying, and 7 days control efficiency is respectively 56.9% and 87.6% behind the medicine.Synergistic effect is obvious behind mould ketone of thiophene and the azoxystrobin compound, and significantly better than single agent, and the consumption of active ingredient obviously reduces to the control efficiency of wheat powdery mildew.
The mould ketone kresoxim-methyl of embodiment 7:11% thiophene aqueous emulsion
Former medicine, solvent, emulsifier are added together, make and be dissolved into even oil phase; With water-soluble component and the mixed water that gets of water; Under high-speed stirred, oil phase is mixed with water, make the mould ketone kresoxim-methyl of 11% thiophene aqueous emulsion.
Kresoxim-methyl in the present embodiment is replaceable to be methoxy acrylic bactericides such as ZJ0712, Fluoxastrobin, oxime bacterium ester, Enestroburin, forms new embodiment.
This embodiment is applied to prevent and treat downy mildew of garpe.The mould ketone kresoxim-methyl of 11% thiophene aqueous emulsion is pressed the spraying of 100ga.i./ha thin up, and 10 days control efficiency is 87.8% behind the medicine.100ga.i./ha pressed by the mould ketone suspending agent of 10% thiophene and 30% kresoxim-methyl suspending agent is pressed 100g a.i./ha, the thin up spraying, and 10 days control efficiency is respectively 42.4% and 76.9% behind the medicine.The synergistic effect of the composite back of mould ketone of thiophene and kresoxim-methyl is obvious, and significantly better than single agent, and the consumption of active ingredient obviously reduces to the control efficiency of downy mildew of garpe.
Embodiment 8
Active component, various auxiliary agent and filler etc. are fully mixed in the ratio of prescription, after ultrafine crusher is pulverized, promptly get the mould ketone alkene oxime amine of 31% thiophene wetting powder.
Alkene oxime amine in the present embodiment is replaceable to be methoxy acrylic bactericides such as kresoxim-methyl, ZJ0712, Fluoxastrobin, oxime bacterium ester, Enestroburin, forms new embodiment.
This embodiment is applied to prevent and treat cucumber downy mildew.The mould ketone alkene oxime amine of 31% thiophene wetting powder is pressed the spraying of 200ga.i./ha thin up, and 7 days control efficiency is 88.9% behind the medicine.150ga.i./ha pressed by the mould ketone wetting powder of 10% thiophene and 25% alkene oxime amine missible oil is pressed 150g a.i./ha, the thin up spraying, and 7 days control efficiency is respectively 64.5% and 80.8% behind the medicine.The synergistic effect of the composite back of mould ketone of thiophene and alkene oxime amine is obvious, and significantly better than single agent, and the consumption of active ingredient obviously reduces to the control efficiency of cucumber downy mildew.
Embodiment 9
Active component, dispersant, wetting agent, disintegrant and the filler ratio in prescription is mixed, become wetting powder, add a certain amount of water mixing extruding again and make material, obtain the mould ketone azoxystrobin water dispersible granule of 51% thiophene after the drying screening through comminution by gas stream.
Fluoxastrobin in the present embodiment is replaceable to be methoxy acrylic bactericides such as kresoxim-methyl, ZJ0712, oxime bacterium ester, Enestroburin, alkene oxime amine, forms new embodiment.
This embodiment is applied to prevent and treat wheat rust.The mould ketone azoxystrobin water dispersible granule of 51% thiophene is by 6000 extraordinarily water dilution sprayings, and 10 days control efficiency is 96.5% behind the medicine.The mould ketone wetting powder of 10% thiophene is pressed 3000 times of 150g by 500 times and 25% Fluoxastrobin suspending agent, and thin up is sprayed, and 10 days control efficiency is respectively 68.5% and 91.5% behind the medicine.Synergistic effect is obvious behind mould ketone of thiophene and the azoxystrobin compound, and significantly better than single agent, and the consumption of active ingredient obviously reduces to the control efficiency of wheat rust.
Claims (8)
1. a bactericidal composition is characterized in that active ingredient is mould ketone of thiophene and methoxy acrylic bactericide.
2. composition according to claim 1 is characterized in that: the mass ratio of mould ketone of thiophene and methoxy acrylic bactericide is 50: 1-1: 50.
3. composition according to claim 1 is characterized in that: the mass ratio of mould ketone of thiophene and methoxy acrylic bactericide is 10: 1-1: 20.
4. composition according to claim 1 is characterized in that: described methoxy acrylic bactericide is kresoxim-methyl, ZJ0712, Fluoxastrobin, oxime bacterium ester, Enestroburin, alkene oxime amine etc.
5. according to each described bactericidal composition in the claim 1 to 4, it is characterized in that: also contain the pesticidal preparations auxiliary element in the described bactericidal composition, go up the formulation of using so that bactericidal composition is made suitable agricultural.
6. bactericidal composition according to claim 5 is characterized in that: described auxiliary element is one or more in solvent, emulsifier, dispersant, stabilizing agent, antifreezing agent or the thickener.
7. bactericidal composition according to claim 6 is characterized in that: the formulation of described bactericidal composition is wetting powder, suspending agent, water dispersible granules, aqueous emulsion.
8. bactericidal composition according to claim 1, the application on control of crop disease.
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| CN106561675A (en) * | 2016-10-20 | 2017-04-19 | 陕西西大华特科技实业有限公司 | Sterilization composition comprising benziothiazolinone and coumoxystrobin |
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