CN101524081B - Compound bactericide and application thereof - Google Patents
Compound bactericide and application thereof Download PDFInfo
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- CN101524081B CN101524081B CN2009100740927A CN200910074092A CN101524081B CN 101524081 B CN101524081 B CN 101524081B CN 2009100740927 A CN2009100740927 A CN 2009100740927A CN 200910074092 A CN200910074092 A CN 200910074092A CN 101524081 B CN101524081 B CN 101524081B
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- prochloraz
- bactericide
- bacterium ester
- oxime bacterium
- composite bactericide
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Abstract
The invention discloses a compound bactericide which is characterized in that the compound bactericide is prepared by compounding tifloxystrobin and prochloraz with the weight proportion of 1:30-1:40. The compound bactericide of the invention, which is used for preventing plant diseases, such as rice blast, rice false smut, rice sheath blight and the like, has the advantages of broad anti-bacterial spectrum, high systemic activity, high quick-action performance and long lasting period; meanwhile, the compound bactericide can further overcome the bactericide resistance of harmful bacteria to carbendazim and other agents and reduce the frequency of bactericide application; and the compound bactericide is environment-friendly, and gives full play to the integrated control, therefore, the compound bactericide is an ideal agent in the pollution-free control.
Description
Technical field
The present invention relates to a kind of bactericide and prevent and treat the method for disease, more specifically to the composite bactericide of preventing and treating rice disease and application thereof.
Background technology
Rice blast is claimed rice blast again, is burnt pest, the pest of kowtowing.Be distributed in each rice district, the whole nation, the blade of mainly causing harm, stem stalk, fringe portion.Because harmful period, position difference are divided into seedling pest, leaf pest, joint pest, panicle blast, grain pest, very big to the paddy growth influence, rice growth is fallen ill in earlier stage, can cause the withered of rice seedling, and heading stage, morbidity can cause withered dead ears, had a strong impact on rice yield.To the effectively preventing method of rice blast is chemical control, and main medicament has tricyclazole, Isoprothiolane, carbendazim, thiophanate-methyl, rice blast peptide, Hinosan, IBP, octicin solution, kasugarnycin etc.
False smut has another name called green fringe disease, paddy blossom disease, the rice of blooming, and is called " good harvest is sick " again in China and Japan.False smut takes place to have a strong impact on rice yield when serious, makes paddy thousand kernel weight, output decline, not plump paddy, the increase of cracking rice, and milled rice rate, quality reduce, general production loss about 5%.。Rice false smut also can pollute rice, and germ contains people, animal, fowl noxious material and the pigment C9H607 that causes a disease, with being mixed with after sick paddy 0.5% or more feeds pigs pork pig growth, the decline of weightening finish speed; Sow produces stillborn foetus, and monster, piglet become to live and reduce, and it is right that the generation toxin also can directly be detrimental to health.The medicament commonly used of preventing and treating false smut has jinggangmeisu, triazolone and carbendazim etc.
Along with China's Rice Production is developed by the direction of high yield and high quality to good quality and high output, the generation of rice blast is more and more heavier in recent years.Along with the large tracts of land of the close grain of paddy rice type kind is promoted and the planting density increasing, rice green smut takes place also to be on the rise.Therefore it is very necessary to prevent and treat rice green smut.But the medicament commonly used of control rice blast and false smut, or because of using continuously, control efficiency descends; Or very heavy smell is arranged, and human body skin there is the strong impulse effect, cause very big inconvenience for the dispenser personnel, and rice quality is exerted an influence.Actual according to this production, need in a hurry that development is a kind of can effectively to prevent and treat rice blast and false smut, environment amenable new composite bactericide.
Summary of the invention
Technical problem to be solved by this invention provides a kind ofly has better control efficiency, composite bactericide and the application thereof little to environmental influence to diseases such as rice blast, false smut, banded sclerotial blights.
The present invention realizes through following technical scheme:
The active ingredient of composite bactericide of the present invention is by oxime bacterium ester and Prochloraz is composite forms, and the weight proportion of oxime bacterium ester and Prochloraz is 30: 1～1: 40.
Its further technical scheme is: the weight proportion of said oxime bacterium ester and Prochloraz is 30: 1～1: 30, preferred 1: 1.5.
When preparing composite bactericide of the present invention; The carrier and the additive (like emulsifier, dispersant, stabilizing agent, bleeding agent) that can add convention amount mix, and make wetting powder, colloidal suspending agent, microemulsion, water dispersion granule, missible oil, soluble powder, oil-suspending agent, aqueous suspension agent or granule by common method.
Composite bactericide of the present invention is when processing wetting powder, and the mass percent of its each composition is: oxime bacterium ester 30～1%, Prochloraz 1～40%, pesticide wettable auxiliary agent 5～15%, surplus are inserts; The mass percent that further again technical scheme is each composition in the described wetting powder is: oxime bacterium ester 30～1%, Prochloraz 1～30%, pesticide wettable auxiliary agent 5～15%, surplus are inserts, and wherein inserts can be kaolin.
The application of composite bactericide of the present invention on control rice blast, false smut and banded sclerotial blight.
Composite bactericide of the present invention at the rice blast their early stage, is converted 450～600 kilograms of sprays of water mist according to the consumption of total effective dose 37.5～375 grams of oxime bacterium ester and Prochloraz in the per hectare when the control rice blast.
Composite bactericide of the present invention in the paddy rice cut phase, is converted 450～600 kilograms of sprayings of water according to the consumption of oxime bacterium ester in the per hectare and Prochloraz total amount 37.5～375 grams when preventing and treating false smut.
Composite bactericide of the present invention at the banded sclerotial blight initial stage of origination, is converted 900～1200 kilograms of thick mists of spray of water according to oxime bacterium ester in the per hectare and Prochloraz total amount 75～562.5 gram effective doses when preventing and treating rice sheath blight disease.
The invention has the beneficial effects as follows:
The methoxy acrylic broad spectrum activity new type bactericide that the oxime bacterium ester that the present invention utilizes is produced for Beyer Co., Ltd; Has the brand-new mechanism of action such as protection, treatment, infiltration, interior suction; Most of sac fungi, basidiomycetes, oomycetes and imperfect fungus all there are good active, can adopt multiple insecticide-applying way such as cauline leaf spraying, seed treatment, soil treatment, environmentally friendly; Can promote that crop grows vigorously, can be widely used in the control of various plant diseases.The Prochloraz that invention utilizes is efficient, wide spectrum, low toxicity type bactericide, inhales multiple actions such as conduction, prevention protection treatment in having, and the disease that various crop is caused by sac fungi and imperfect fungus has tangible preventive effect; Use with most of bactericide, bactericide, Insecticides (tech) & Herbicides (tech); The better prevention effect is all arranged, the multiple diseases on field crop, fruit and vegetable, turf and the ornamental plants is had treatment and eradicant action, interior absorption is strong; Quick-acting is good, and the lasting period is long.
The disease obvious results characteristic that the present invention has utilized Prochloraz that the disease that caused by sac fungi and imperfect fungus and oxime bacterium ester are caused most of sac fungi, basidiomycetes, oomycetes and imperfect fungus, and oxime bacterium ester and other medicament do not have any mutual pesticide resistance, therefore; It is strong that composite bactericide of the present invention has wide, the interior absorption of fungicidal spectrum; Quick-acting is good, and the advantage that the lasting period is long can also overcome the pesticide resistance of germ to medicaments such as carbendazim simultaneously; Reduce the medication number of times; And environmentally friendly, can bring into play its advantage in integrated control, be the desirable medicament in the non-environmental pollution control.
Embodiment
Embodiment 1
Measure the indoor activity of composite bactericide of the present invention to rice blast.
Former medicine of oxime bacterium ester and the former medicine of Prochloraz are used methyl alcohol and acetone solution respectively, and adding needs the Tween-80 of constant volume 5% to make emulsifier and spreader usefulness respectively, is mixed with the mother liquor of 1000 μ g/mL respectively.With the sample of oxime bacterium ester and Prochloraz mother liquor preparation oxime bacterium ester and Prochloraz different proportion, oxime bacterium ester in the sample: the ratio of Prochloraz was respectively 30: 1,20: 1,10: 1,1: 1,1: 1.5,1: 10,1: 20,1: 30 simultaneously.Adopt the pastille medium method oxime bacterium ester, Prochloraz and each ratio sample to be made into the dilution of certain mass concentration; And respectively get in the culture dish that 1mL soup to diameter is 9cm; The YPSA medium that adds 9mL again, being mixed with the mass concentration gradient behind the mixing is the pastille flat board of 10,2,0.4,0.08,0.016,0.0032,0.00064 μ g/mL.The Pyricularia oryzae bacterial strain that supplies examination is moved on the YPSA flat board, and it is subsequent use in 28 ℃ of insulating boxs, to cultivate 9d (9 days).Adopt the mycelial growth rate method, using card punch to beat the cut-off footpath at colony edge is the bacterium dish of 5mm, and it is dull and stereotyped central to be connected to pastille, compares with pastille culture medium flat plate not, establishes 4 repetitions respectively.In 28 ℃ of insulating boxs, cultivate, measure the colony diameter that each is handled with the right-angled intersection method, calculate by following formula in 7d:
Then pharmacy quality concentration is changed into mass concentration logarithm (x), mycelial growth inhibition rate changes into and suppresses probit value (y), carries out regression analysis.Calculate concentration (EC in the virulence regression equation y=bx+a of medicament, the effective inhibition
50) and coefficient R
2And relative virus force index, theoretical toxicity index and co-toxicity coefficient, the result sees table 1.
Table 1 composite bactericide is to the inhibitory action of Pyricularia oryzae mycelial growth
| Medicament | Regression equation | R 2 | EC 50(μg/mL) | The relative virus force coefficient | Theoretical toxicity index | Co-toxicity coefficient |
| Oxime bacterium ester (A) | Y＝6.1956+0.7716x | 0.9617 | 0.0282 | 100 | - | - |
| Prochloraz (B) | Y＝8.2488+2.5485x | 0.8599 | 0.0531 | 53.1073 | - | - |
| A∶B?30∶1 | Y＝7.3559+1.3206x | 0.8391 | 0.0164 | 171.9512 | 98.4873 | 174.5923 |
| 20∶1 | Y＝6.0686+0.6646x | 0.9891 | 0.0247 | 114.1700 | 97.7670 | 116.7776 |
| 10∶1 | Y＝6.7654+1.1424x | 0.9699 | 0.0285 | 98.9474 | 95.7370 | 103.3534 |
| 1∶1 | Y＝6.8328+1.2058x | 0.9785 | 0.0302 | 93.3774 | 76.5537 | 121.9763 |
| 1∶1.5 | Y＝6.9458+1.1567x | 0.9853 | 0.0207 | 136.2319 | 71.8642 | 189.5685 |
| 1∶10 | Y＝5.8828+0.6534x | 0.9875 | 0.0446 | 63.2287 | 57.3703 | 110.2116 |
| 1∶20 | Y＝6.4436+1.0221x | 0.9903 | 0.0387 | 72.8682 | 55.3403 | 131.6729 |
| 1∶30 | Y＝6.2604+0.8909x | 0.9959 | 0.0385 | 73.2468 | 54.6120 | 134.1222 |
Data show in the table 1, and oxime bacterium ester and Prochloraz were with 30: 1～1: 30 when being mixed, and co-toxicity coefficient shows that all greater than 100 composite bactericide has synergistic effect to rice blast; With oxime bacterium ester: when composite, co-toxicity coefficient was maximum, is 189.5685 with 1: 1.5 for Prochloraz, and it be worth significantly greater than 120, the synergistic effect maximum.
Embodiment 2
Measure the indoor activity of composite bactericide of the present invention to false smut.
Former medicine of oxime bacterium ester and the former medicine of Prochloraz are used methyl alcohol and acetone solution respectively, and adding needs the Tween-80 of constant volume 5% to make emulsifier and spreader usefulness respectively, is mixed with the mother liquor of 1000 μ g/mL respectively.With the sample of oxime bacterium ester and Prochloraz mother liquor preparation oxime bacterium ester and Prochloraz different proportion, oxime bacterium ester in the sample: the ratio of Prochloraz was respectively 30: 1,20: 1,10: 1,1: 1,1: 1.5,1: 10,1: 20,1: 30,1: 40 simultaneously.Adopt the pastille medium method oxime bacterium ester, Prochloraz and each ratio sample to be made into the dilution of certain mass concentration; Respectively get in the culture dish that 1mL soup to diameter is 9cm; The PSA medium that adds 9mL again, being mixed with the mass concentration gradient behind the mixing is the pastille flat board of 10,2,0.4,0.08,0.016,0.0032,0.00064 μ g/mL.The rice false smut bacterial strain that supplies examination is moved on the PSA flat board, and it is subsequent use in 28 ℃ of insulating boxs, to cultivate 15d.Adopt the mycelial growth rate method, using card punch to beat the cut-off footpath at colony edge is the bacterium dish of 5mm, and it is dull and stereotyped central to be connected to pastille, compares with pastille culture medium flat plate not, establishes 4 repetitions respectively.In 28 ℃ of insulating boxs, cultivate, measure the colony diameter that each is handled with the right-angled intersection method, calculate by following formula in 7d:
Then pharmacy quality concentration is changed into mass concentration logarithm (x), mycelial growth inhibition rate changes into and suppresses probit value (y), carries out regression analysis.Calculate the virulence regression equation y=bx+a of medicament, the concentration (EC that effectively suppresses
50) and coefficient R
2And relative virus force index, theoretical toxicity index and co-toxicity coefficient, the result sees table 2.
Table 2 composite bactericide is to the inhibitory action of rice false smut mycelial growth
| Medicament | Regression equation | R 2 | EC 50(μ g/mL) | The relative virus force coefficient | Theoretical toxicity index | Co-toxicity coefficient |
| Oxime bacterium ester (A) | Y＝5.8100+0.6885x | 0.9986 | 0.0666 | 100 | - | - |
| Prochloraz (B) | Y＝5.8320+0.7642x | 0.9925 | 0.0851 | 78.2609 | - | - |
| A∶B?30∶1 | Y＝6.0599+0.6710x | 0.9685 | 0.0263 | 253.2319 | 99.2987 | 255.0204 |
| 20∶1 | Y＝6.0018+0.7040x | 0.9651 | 0.0377 | 176.6578 | 98.9648 | 178.5057 |
| 10∶1 | Y＝6.0184+0.7644x | 0.9873 | 0.0465 | 143.2258 | 98.0237 | 146.1134 |
| 1∶1 | Y＝5.8096+0.6134x | 0.9712 | 0.0479 | 139.0397 | 89.1305 | 155.9956 |
| 1∶1.5 | Y＝5.8573+0.6498x | 0.9864 | 0.0479 | 139.0397 | 86.9565 | 159.8956 |
| 1∶10 | Y＝5.9653+0.7885x | 0.9791 | 0.0597 | 111.5578 | 80.2372 | 139.0350 |
| 1∶20 | Y＝5.9085+0.7712x | 0.9868 | 0.0664 | 100.3012 | 79.2961 | 126.4894 |
| 1∶30 | Y＝5.8576+0.8440x | 0.9936 | 0.0964 | 69.0871 | 78.9622 | 87.49389 |
| 1∶40 | Y＝5.7993+0.8173x | 0.9944 | 0.1052 | 63.3080 | 78.7911 | 80.34918 |
Table 2 data show; Oxime bacterium ester and Prochloraz were with 30: 1～1: 20 when being mixed, and co-toxicity coefficient is all greater than 120, and oxime bacterium ester and Prochloraz are mixed in this proportion the rice warm disease is all had synergistic effect; But co-toxicity coefficient is maximum when being mixed by 30: 1 with oxime bacterium ester and Prochloraz; Be 255.0204, it is worth significantly greater than 120, explains that oxime bacterium ester and Prochloraz are maximum in this ratio mixed synergies.
Therefore, composite bactericide of the present invention has obvious synergistic effect in certain ratio range, improved the control efficiency of rice disease, has enlarged fungicidal spectrum; There are not the problem of mutual transreactance property in oxime bacterium ester and Prochloraz, help prolonging the result of use of this composite bactericide, reduce the probability that pathogen produces the selectivity resistance; Reduce the medication number of times, reduce environmental pollution, help integrated control.
Embodiment 3
25% oxime bacterium ester and Prochloraz WP are to the control of rice blast, and spraying time is a their early stage, contain oxime bacterium ester 10%, Prochloraz 15%, wetting agent 10%, auxiliary agent 2% among wherein used 25% oxime bacterium ester and the Prochloraz WP, and all the other are inserts kaolin.Converting the water yield is the 600L/ hectare, the spray mist.The result sees table 3.
Table 3 25% oxime bacterium ester Prochloraz WP is to the field control effect of rice blast
Embodiment 4
25% oxime bacterium ester and Prochloraz WP are to the control of rice green smut, and spraying time is the paddy rice cut phase, contain oxime bacterium ester 10%, Prochloraz 15%, wetting agent 10%, auxiliary agent 2% among wherein used 25% oxime bacterium ester and the Prochloraz WP, and all the other are inserts kaolin.Converting the water yield is the 600L/ hectare, the spray mist.The result sees table 4.
Table 4 25% oxime bacterium ester Prochloraz WP is to the field control effect of false smut
Embodiment 5
The application of composite bactericide of the present invention in preventing and treating rice sheath blight disease.
25% oxime bacterium ester and Prochloraz WP are to the control of rice sheath blight disease, and spraying time is a their early stage, contain oxime bacterium ester 10%, Prochloraz 15%, wetting agent 10%, auxiliary agent 2% among wherein used 25% oxime bacterium ester and the Prochloraz WP, and all the other are inserts kaolin.Converting the water yield is the spraying of 1200L/ hectare.The result sees table 5.
Table 5 25% oxime bacterium ester Prochloraz WP is to the field control effect of rice sheath blight disease
Claims (9)
1. composite bactericide, the active ingredient that it is characterized in that said composite bactericide are by oxime bacterium ester and Prochloraz is composite forms, and the weight proportion of oxime bacterium ester and Prochloraz is 30: 1～1: 40.
2. a kind of composite bactericide according to claim 1, the weight proportion that it is characterized in that said oxime bacterium ester and Prochloraz is 30: 1～1: 30.
3. a kind of composite bactericide according to claim 1, the weight proportion that it is characterized in that said oxime bacterium ester and Prochloraz is 1: 1.5.
4. according to claim 1,2 or 3 described a kind of composite bactericides, it is characterized in that: said composite bactericide also contains the carrier and the additive of convention amount, and described carrier and additive comprise emulsifier, dispersant, stabilizing agent, bleeding agent.
5. a kind of composite bactericide according to claim 4, the formulation that it is characterized in that said composite bactericide is wetting powder, colloidal suspending agent, microemulsion, water dispersion granule, missible oil, soluble powder, oil-suspending agent, aqueous suspension agent or granule.
6. a kind of composite bactericide according to claim 5; The wetting powder that it is characterized in that said this composite bactericide, the mass percent of its each composition is: oxime bacterium ester 1～30%, Prochloraz 40～1%, pesticide wettable auxiliary agent 5～15%, surplus are inserts.
7. a kind of composite bactericide according to claim 6, it is characterized in that the mass percent of each composition in the described wetting powder is: oxime bacterium ester 1～30%, Prochloraz 30～1%, pesticide wettable auxiliary agent 5～15%, surplus are inserts.
8. one kind like the application on control rice blast, false smut, rice sheath blight disease of claim 1,2,3,5,6 or 7 arbitrary described a kind of composite bactericides.
9. the application of a kind of composite bactericide as claimed in claim 4 on control rice blast, false smut, rice sheath blight disease.
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| CN2009100740927A CN101524081B (en) | 2009-04-07 | 2009-04-07 | Compound bactericide and application thereof |
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| CN2009100740927A CN101524081B (en) | 2009-04-07 | 2009-04-07 | Compound bactericide and application thereof |
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| CN101524081B true CN101524081B (en) | 2012-05-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN105191997A (en) * | 2015-08-10 | 2015-12-30 | 谢绪叶 | Fungicide containing prochloraz and scutellaria baicalensis |
| CN105076225A (en) * | 2015-08-27 | 2015-11-25 | 湖州旭龙生物化学有限公司 | Sterilizing composition with trifloxystrobin and merremia boisiana extracts |
| CN109362767A (en) * | 2018-12-25 | 2019-02-22 | 陕西先农生物科技有限公司 | A kind of fungicide, preparation method and applications |
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- 2009-04-07 CN CN2009100740927A patent/CN101524081B/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
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| 张荣华等.肟菌酯合成工艺.《农药》.2007,第46卷(第1期),29-30,35. * |
| 陈平等.咪鲜胺的应用概况及其残留检测研究.《湖北农业科学》.2007,第46卷(第3期),478-480. * |
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