CN1276710C - Built agent for preventing and control rice blast - Google Patents
Built agent for preventing and control rice blast Download PDFInfo
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- CN1276710C CN1276710C CN 200410014349 CN200410014349A CN1276710C CN 1276710 C CN1276710 C CN 1276710C CN 200410014349 CN200410014349 CN 200410014349 CN 200410014349 A CN200410014349 A CN 200410014349A CN 1276710 C CN1276710 C CN 1276710C
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- kresoxim
- tricyclazole
- methyl
- rice
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Abstract
The present invention relates to a preparation for preventing and treating rice blast, which belongs to the pesticide formulation of germicide. The formulation comprises main components such as tricyclazole, kresoxim-methyl, fillers, solvents, of water, auxiliary agents, etc. The preparation is used for wide sterilization, is mainly used for preventing and treating rice blast, has obvious effect which is stabilized more than 80%, and treats other fungal diseases on paddy rice. The present invention has the advantages of good quick effect performance, good lasting effect performance and strong eradicant action. The present invention can also enhance the yield of paddy rice and improve the quality of paddy rice. The action mechanism of the germicide is novel, the function points are multiple, and the generation and the development of medicine resistant performance of pathogenic bacteria can be delayed. The preparation of the present invention has the advantages of simple preparing technology, low cost and obvious economic benefits.
Description
One, technical field
A kind of composite dose of preventing and treating rice blast belongs to bactericide agricultural chemicals prescription novel, efficient, low toxicity.
Two, technical background
Methoxy acrylate series bactericidal agent (strobilurins) is that natural antimicrobial substance strobilurin A is the bionical synthesizing fungicide of a class that the lead compound exploitation comes in pestering with natural world, be behind benzimidazole and triazole bactericidal agent, shake a class new type bactericide in bactericide field once more.This is a class broad-spectrum germicide, can effectively prevent and treat the caused plant disease of oomycetes, sac fungi, basidiomycetes and imperfect fungus.Developed products such as Fluoxastrobin, kresoxim-methyl, oxime bacterium ester in 1992 abroad in succession.External many countries have have successfully prevented and treated tens of plant species diseases such as paddy rice, cereal crop, vegetables, fruit tree, lawn with this series bactericidal agent.But the intrinsic resistance risk of this series bactericidal agent is high-caliber, be easy to develop immunity to drugs, and cost is higher.The Application and Development of this class new type bactericide is for the invention provides material base.
Rice blast is the important disease that hazard rice is produced for a long time, and its pathogen can be infected the host in arbitrary stage of paddy growth, causes economic loss.At present China uses mainly that toxicity is medium, bactericide such as the tricyclazole that has only prevention effect and sulphur prevent and treat, wherein tricyclazole is to synthesize by the melanin that the inhibition Pyricularia oryzae adheres in the spore, hinder the rice blast fungus spore and invade in the pin main body, reach the purpose of preventing and treating disease.But the usually effect decline because of service time in inclined to one side evening, sulphur preparation also can cause drug injury problem sometimes.Therefore, take place and prevent and treat situation, need that development is efficient, the new type bactericide of wide spectrum, low toxicity, safety according to rice disease.
Three, summary of the invention
Technical problem the object of the invention is to study provides a kind of composite dose of preventing and treating rice blast, and drug effect is good, quick-acting good, synergy is remarkable, fungicidal spectrum is wide, cost is lower, suspension of pesticide resistance generation, safe in utilization, bacteriocide formula and the manufacture method thereof being convenient to promote the use of.
A kind of composite dose of preventing and treating rice blast of technical scheme is characterized in that the effective ingredient of pharmaceutical formulation contains tricyclazole and methoxy acrylic bactericide.Methoxy acrylic bactericide mainly refers to kresoxim-methyl, oxime bacterium ester, Fluoxastrobin bactericide.Adopt conventional production process to make emulsifiable concentrates for agricultural chemicals (EC), suspending agent (SC), wetting powder (WP), water dispersible granules (WG) and aqueous emulsion (EW), solubility aqua preparations such as (SL).
Composite dose is preferably, the mixture of the various formulations of tricyclazole (tricyclazole) kresoxim-methyl (kresoxim-methyl) of preparation 1000 grams, its pharmaceutical formulation contains: and tricyclazole 5%～80% (percentage by weight, Hereinafter the same), kresoxim-methyl 1%～30%, auxiliary agent, solvent and filler and water 10%～80%.According to the difference of using object, can be made into the various formulations of pesticide of different content and prescription.Contained component of each formulation and proportioning are as follows:
5%～80% missible oil:
Tricyclazole 5%～80%
Kresoxim-methyl 1%～30%
Solvent 35%～85%
Auxiliary agent 3%～15%
5%～80% suspending agent, aqueous emulsion:
Tricyclazole 5%～80%
Kresoxim-methyl 1%～30%
Solvent 5%～45%
Auxiliary agent 3%～15%
Water 10%～70%
5%～80% wetting powder, water dispersible granules:
Tricyclazole 5%～80%
Kresoxim-methyl 1%～30%
Adsorbent, filler 35%～75%
Auxiliary agent 3%～15%
Purposes of the present invention mainly is a control rice blast, other fungal disease on the double rice of harnessing the river.
Beneficial effect the present invention is directed to the tricyclazole that uses in existing the production and belongs to safety, low resistance risk class medicament, but toxicity is medium, fungicidal spectrum is narrow, have low toxicity, safety, efficient, environmentally compatible, has a broad antifungal spectrum with kresoxim-methyl newly developed, but the biological propertyes such as particular mechanism of action that cost is higher, easily develop immunity to drugs and stop germ respiratory chain electronics to transmit, avoid the shortcoming of the two and utilize its advantage, reach the purpose that enlarges fungicidal spectrum, reduces cost, prolongs residual effect, improves effect, increases safety, stops pesticide resistance to take place.
The inventor passes through the generation to plant disease, operation technique, mechanism of action and the pesticide resistance research of control medicament, for the invention provides technical foundation.The present invention carries out compound screening by utilizing new type bactericide kresoxim-methyl and tricyclazole, its objective is to reduce production costs, improve preventive effect, improvement pesticide resistance.Beyond the decapacitation of the present invention control rice blast, healthy growth that can also be by promoting paddy rice, increase the rice leaf area, increase the photosynthesis area, delay aspect such as paddy rice aging and improve the output of paddy rice and improve the quality of paddy rice.The present invention meets the needs of the nuisanceless production of current agricultural product.
Through indoor and field control effectiveness test, its result shows that two compositions hold mutually, and are safe in utilization by the present invention, and drug effect is remarkable.Compare with other agricultural chemicals and to have following advantage:
1. that formulation product of the present invention belongs to is efficient, the biological agricultural chemicals of low toxicity, low-residual, environmentally compatible, meets the green non-pollution agricultural product and produces and the environment-friendly quality requirement.
2. this prescription medicament is strong to other disease broad spectrum activity on rice blast and the paddy rice, can both reach protection and therapeutic action to different types of pathogen.Simultaneously can prevent and treat the disease that other medicament has been developed immunity to drugs, and can delay germ pesticide resistance is appearred in single agent in filling a prescription.
Should the prescription using method simple, cost is low, production cost than the agent of kresoxim-methyl list low 20%～35%, peasant household all can accept.
4. this invention product fungicidal spectrum obviously increases, and drug effect strengthens, and the preventive effect of rice blast is stabilized in more than 80%.To rice safety, preventive effect is stabilized in more than 80%, is not easy to develop immunity to drugs, and can improves the yield and quality of paddy rice.A kind of composite dose of preventing and treating rice blast belongs to bactericide agricultural chemicals prescription novel, efficient, low toxicity.Tricyclazole Pyricularia oryzae in the prescription has very high bactericidal activity, and cost is very low.Kresoxim-methyl is a kind of synthetic bionical bactericide, and it is wide to have a fungicidal spectrum, and quick-acting is strong, and oomycetes, sac fungi, basidiomycetes and imperfect fungus are all had very strong protection and therapeutic action.
Four, specific embodiments and effect
(1) indoor prescription screening
It is to be dissolved in solvent in varing proportions respectively with kresoxim-methyl and the former medicine of tricyclazole that indoor virulence and coefficient of synergism are measured, and sneaks into culture matrix then, measures the inhibition activity (the results are shown in Table 1) to Pyricularia oryzae (Pyricularia grisea) growth.Calculate EC
50Value and coefficient of synergism.Select the proportioning of coefficient of synergism (SR) value 〉=1.5 for use, and carry out appropriate dosage forms processing.
The indoor prescription The selection result of table 1
| Medicament | Regression equation | Correlation coefficient | EC 50 | Coefficient of synergism (SR) |
| The former medicine of kresoxim-methyl | Y＝5.58+0.89X | 0.99 | 0.22 | / |
| The former medicine of tricyclazole | Y＝-0.32+4.71X | 0.96 | 13.5 | / |
| Benzene: 32: 1 | Y＝5.41+0.83X | 0.99 | 0.31 | 1.06 |
| Benzene: 31: 1 | Y＝5.32+1.01X | 0.99 | 0.48 | 0.90 |
| Benzene: 31: 2 | Y＝5.32+1.35X | 0.99 | 0.58 | 1.10 |
| Benzene: 31: 4 | Y＝5.08+1.37X | 0.99 | 0.88 | 1.57 |
| Benzene: 31: 6 | Y＝4.85+1.25X | 0.99 | 1.33 | 1.05 |
(2) field operation technique and drug effect thereof
1. 20% tricyclazole kresoxim-methyl WP prevents and treats the seedling pest
Test arrangement is in Chen Yang town, Sheyang County, Jiangsu Province, and rice varieties is that force is educated round-grained rice No. 3.Stubble is a cucumber experimental field, land readjustment, and irrigating facility is complete.Premature rice sowing on May 8th, 2003, early June transplants, field cultivation density about 3,000,000 effective fringe/hm
2In 3～4 leaf phases of rice shoot, spray application 20% tricyclazole kresoxim-methyl wetting powder WP (the former medicine 40g of kresoxim-methyl, the former medicine 160g of tricyclazole, 884 composite assistant 100g, filler diatomite 800g) 1500 times, 1000 times, 500 times converts water yield 40Kg/667m when fragmentary scab just having occurred
2Control efficiency sees Table 1500 times of 2,20% tricyclazole kresoxim-methyl WP and 1000 times and 500 times of significant differences, and 1000 times of liquid and two contrast medicaments have certain difference.The control efficiency of 500 times of liquid of 20% tricyclazole kresoxim-methyl WP is best, up to 86.85%.
The effect of table 2 tricyclazole kresoxim-methyl control paddy rice seedling pest
| Medicament | Repeat 1 | Repeat 2 | Repeat 3 | Repeat 4 | Mean value | Average preventive effect (%) | Significance analysis 0.05 |
| 600 times of 20% tricyclazole WP800 of 500 times of 30% kresoxim-methyl SC of 1000 times of 20% triphen SC of 1500 times of 20% triphen SC of 20% triphen SC doubly | 4.50 1.80 1.09 2.37 2.64 | 5.20 2.35 0.92 2.31 2.94 | 4.10 2.90 1.45 2.86 2.97 | 5.60 2.20 2.75 2.42 2.65 | 4.85 2.31 1.55 2.49 2.80 | 58.23 80.10 86.85 78.51 75.89 | a b b bc bc |
| Blank | 14.90 | 10.55 | 11.25 | 9.75 | 11.61 | / |
2. 60% tricyclazole kresoxim-methyl SC prevents and treats the leaf pest
Test arrangement is on Lou Dong farm, Lou Zhuan town, Jiangyan City, Jiangsu Province, and the test area is the chronic illness district, paddy rice premature rice on May 15, and June 20 transplanted, and preceding stubble is a wheat, and experimental field the field piece is smooth, and irrigation canals and ditches are supporting.Rice varieties is that force is educated round-grained rice No. 3.60% aqueous suspension (SC) that tricyclazole kresoxim-methyl binary bactericide is mixed with (the former medicine 120g of kresoxim-methyl, the former medicine 480g of tricyclazole, dispersant lignosulfonates 100g, thickener xanthan gum 2g, antifreezing agent glycerine 50mL, defoamer organic silicone 20g, deionized water 278mL).When just fragmentary scab having occurred in the field, spraying prevention immediately, per hectare use 150,300,450mL spraying, the contrast medicament is 20% tricyclazole WP 1125g/hm
2(Jiangsu Province Tongzhou Zhengda Pesticide Chemical Co., Ltd.) and 30% kresoxim-methyl SC 600mL/hm
2(Anhui Huaxing Chemical Co., Ltd.).Rice plant of tillering stage to heading stage, 10 days at interval, use altogether 2 times.Control efficiency sees Table the preventive effect significant difference between 3,60% triphen SC per hectare 150mL, three processing of 300mL, 450mL, and the control efficiency of per hectare 450mL consumption is apparently higher than two contrast medicaments.
Table 3 tricyclazole kresoxim-methyl is prevented and treated the effect of leaf blast in rice
| Medicament | Repeat 1 | Repeat 2 | Repeat 3 | Repeat 4 | Mean value | Average disease refers to (counter-rotating of left column mean changes % into) | Average preventive effect (%) |
| 60% triphen SC 150mL/hm 260% triphen SC 300mL/hm 260% triphen SC 450mL/hm 230% kresoxim-methyl SC 600mL/hm 220% tricyclazole WP1125g/hm 2 | 3.43 2.41 2.09 2.93 2.78 | 4.06 2.55 1.97 2.91 2.84 | 3.24 2.69 1.89 2.54 2.97 | 2.91 2.67 1.77 2.42 2.65 | 3.41 2.58 1.93 2.70 2.81 | 0.35 0.20 0.11 0.22 0.24 | 56.97c 75.41b 86.90a 72.51b 70.89b |
| Blank | 4.83 | 5.13 | 5.47 | 5.25 | 5.17 | 0.81 | / |
3. 60% tricyclazole kresoxim-methyl EC prevents and treats panicle blast
Test arrangement is 7 groups of the Jiang Yan of Jiangsu Province city Lou Zhuan town Lou Zhuan, and this area belongs to rice blast chronic illness district, medicaments such as iprobenfos is developed immunity to drugs through monitoring.Stubble is the ground sword bean experimental field, and dispenser water depth 1cm, rice varieties are that force is educated round-grained rice No. 3.The test region soil types is the diligent earth of paddy rice, pH value 7.5, and long-term subterranean water level 60cm, physical features is smooth, and irrigation conditions is good.Before the dispenser, the leaf pest are very light, and disease refers to be about 1 grade.Paddy rice cut initial stage dispenser on August 21st, 2003 once, per hectare uses 60% tricyclazole kresoxim-methyl missible oil (EC) (the former medicine 120g of kresoxim-methyl, the former medicine 480g of tricyclazole, the emulsifier 200g that is mixed, solvent xylene 200mL) 200,400,800mL to convert water spray, above-mentioned processing is by per hectare amount of liquid medicine 750Kg spraying, used in 10 days at interval for the second time, spraying equipment is the Changjiang river 10 type manual sprayers, spray orifice bore 0.7mm.
The effect of control ear stem pest sees Table 4, and the preventive effect that per hectare sprays 60% tricyclazole kresoxim-methyl 200,400,800mL is respectively 57.43%, 71.45%, 86.56%, and it is remarkable to handle differences.The preventive effect of per hectare 800mL application dosage is best, with the preventive effect performance significant difference of 2 contrast medicaments, examines the product result and shows, than blank volume increase 8.68%.
The field test results of table 4 tricyclazole kresoxim-methyl control paddy rice panicle blast
| Medicament | Repeat | The morbidity spike number | Withered dead ears rate (%) | Tassel blast refers to | The average disease of fringe pest refers to | Fringe pest preventive effect % | The significance of difference 0.05 | Output Kg/ha | Rate of growth (%) |
| 60% triphen 200mL/hm 2 | 1 | 41 | 0.16 | 2.26 | 2.31 | 57.43 | c | 7631.5 | 2.78 |
| 2 | 48 | 0.16 | 2.19 | ||||||
| 3 | 34 | 0.16 | 2.34 | ||||||
| 4 | 33 | 0.33 | 2.45 | ||||||
| 60% triphen 400mL/hm 2 | 1 | 29 | 0.16 | 1.38 | 1.55 | 71.45 | b | 7789.8 | 4.91 |
| 2 | 36 | 0.16 | 1.54 | ||||||
| 3 | 45 | 0.16 | 1.67 | ||||||
| 4 | 37 | 0.16 | 1.61 | ||||||
| 60% triphen 800mL/hm 2 | 1 | 41 | 0.16 | 0.77 | 0.73 | 86.56 | a | 8069.5 | 8.68 |
| 2 | 28 | 0.16 | 0.71 | ||||||
| 3 | 34 | 0 | 0.75 | ||||||
| 4 | 23 | 0.16 | 0.69 | ||||||
| 30% kresoxim-methyl 600mL/hm 2 | 1 | 29 | 0.16 | 1.31 | 1.32 | 75.61 | b | 7909.6 | 6.53 |
| 2 | 16 | 0.16 | 1.22 | ||||||
| 3 | 45 | 0.16 | 1.40 |
| 4 | 37 | 0.16 | 1.35 | ||||||
| 20% tricyclazole 1125g/hm 2 | 1 | 29 | 0.16 | 1.39 | 1.49 | 72.51 | b | 7801.2 | 5.06 |
| 2 | 16 | 0.32 | 0.97 | ||||||
| 3 | 45 | 0 | 1.92 | ||||||
| 4 | 37 | 0.16 | 1.66 | ||||||
| Blank | 1 | 134 | 2.50 | 8.22 | 5.42 | / | 7425.0 |
Those skilled in the art such as emulsifier, solvent, dispersant, thickener, antifreezing agent, defoamer, composite assistant, filler can both grasp and use.
Claims (2)
1. composite a dose of preventing and treating rice blast is characterized in that, the weight ratio that contains active ingredient tricyclazole and kresoxim-methyl is 4: 1.
2. composite dose of control rice blast according to claim 1 is characterized in that, contains tricyclazole 5%～80%, kresoxim-methyl 1%～30%, the pesticidal preparations that auxiliary agent, solvent, filler and water 10%～80% are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014349 CN1276710C (en) | 2004-03-18 | 2004-03-18 | Built agent for preventing and control rice blast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014349 CN1276710C (en) | 2004-03-18 | 2004-03-18 | Built agent for preventing and control rice blast |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1561725A CN1561725A (en) | 2005-01-12 |
| CN1276710C true CN1276710C (en) | 2006-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410014349 Expired - Fee Related CN1276710C (en) | 2004-03-18 | 2004-03-18 | Built agent for preventing and control rice blast |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1994083B (en) * | 2006-01-06 | 2010-09-22 | 河北省农林科学院植物保护研究所 | A compound bactericidal agent |
| CN102197818A (en) * | 2010-03-22 | 2011-09-28 | 中国中化股份有限公司 | Bactericidal composition |
| CN102177900B (en) * | 2011-03-23 | 2013-08-14 | 南京农业大学 | Formula and using method of novel bactericide for preventing and treating rice blast |
| CN105519548A (en) * | 2015-12-24 | 2016-04-27 | 安徽美兰农业发展股份有限公司 | Azoxystrobin and tricyclazole compounded suspension and preparation method thereof |
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- 2004-03-18 CN CN 200410014349 patent/CN1276710C/en not_active Expired - Fee Related
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| CN1561725A (en) | 2005-01-12 |
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Granted publication date: 20060927 |