CN1271930C - Built germicide for preventing and controlling wheat diseases - Google Patents
Built germicide for preventing and controlling wheat diseases Download PDFInfo
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- CN1271930C CN1271930C CN 200410014348 CN200410014348A CN1271930C CN 1271930 C CN1271930 C CN 1271930C CN 200410014348 CN200410014348 CN 200410014348 CN 200410014348 A CN200410014348 A CN 200410014348A CN 1271930 C CN1271930 C CN 1271930C
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- bactericide
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Abstract
The present invention relates to a composite bactericide for preventing and treating wheat diseases, which belongs to a novel high-efficiency low-toxicity bactericide. The formula of the bactericide comprises the main components of triadimefon, thiram, kresoxim methyl, filler, solvents, water, auxiliary agents, etc. The bactericide has the application range to mainly prevent and treat wheat powdery mildew and rust diseases, and concurrently treats other wheat fungi diseases. The prepared bactericide of the present invention has the advantages of obvious synergistic action, good quick acting performance and action continuity, large numbers of action mechanisms and action positioning points, occurrence and development retardation of the medical resistance of pathogenic bacteria, simple bactericide preparation technology, low cost and obvious economic benefit, and is suitable for preventing and treating various plant diseases.
Description
One, technical field
A kind of composite bactericide of preventing and treating wheat class disease belongs to bactericide novel, efficient, low toxicity.
Two, technical background
China is based on the wheat in the wheat crops, and the wheat diseases of whole world record has kind more than 200, and the heavier kind more than 20 that has takes place in China, has had a strong impact on the yield and quality of wheat.Rust is the main disease on the wheat always, once the several years are very popular in history, suffer heavy losses, because the cultivation and the popularization of disease-resistant variety, occurrence of large-area is unpopular since the sixties in 20th century, but stripe rust of wheat still took place seriously in some time in northwest and some areas, North China, and the generation area of leaf rust is in continuous expansion, and serious harm did not take place black stem rust substantially.Because the rest fungus variation is frequent, the wheat breed of being promoted in the production is very single again, and these diseases are again to propagate by the high-altitude, and the potential danger that disease is popular can not be ignored.Along with the popularization of dwarf wheat kind and the improvement of water and fertilizer condition, onset area and scope constantly enlarge, and north Mai Qu spreads after the seventies in 20 century.Adopt triazole bactericidal agent to prevent and treat wheat rust for a long time and the powdery mildew effect is fine, but the pesticide resistance problem is very serious always.
Methoxy acrylate series bactericidal agent (strobilurins) is to be the novel bionical synthesizing fungicide of a class that the lead compound exploitation comes with the natural products.Fungicidal spectrum is wide, can effectively prevent and treat the caused plant disease of oomycetes, sac fungi, basidiomycetes and imperfect fungus.Develop products such as Fluoxastrobin and kresoxim-methyl since 1992 abroad in succession, successfully be used to prevent and treat tens of plant species diseases such as paddy rice, cereal crop, vegetables, fruit tree, lawn.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.
Tmtd is a kind of broad spectrum protection bactericide, by combining with material that thalline contains sulfydryl, suppresses its activity, disturbs normal oxidation reduction reaction in the somatic cells, and then stops rudiment of multiple disease fungus spore and mycelial growth.The long-term use is not easy to develop immunity to drugs.
Three, summary of the invention
Triazolone low toxicity, safe, efficient, interior absorption that technical problem the present invention is directed to use in existing the production are strong, but are easy to generate pesticide resistance; Tmtd has wide spectrum, the advantage that is difficult for developing immunity to drugs and kresoxim-methyl newly developed and has low toxicity, safety, efficient, environmentally compatible, has a broad antifungal spectrum, 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, the composite bactericide of control wheat class disease is provided, avoid shortcoming each other 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.
A kind of composite bactericide of preventing and treating wheat class disease of technical scheme is characterized in that the effective ingredient of pharmaceutical formulation contains triazolone, tmtd and methoxy acrylic bactericide.Methoxy acrylic mainly refers to kresoxim-methyl, oxime bacterium ester, Fluoxastrobin.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).
Prepare the mixture of the various formulations of 1000 grammes per square metre triazolone (triadimefon) tmtd (thiram) kresoxim-methyls (kresoxim-methyl), its pharmaceutical formulation preferably contains: and triazolone 0.5%～10% (percentage by weight, Hereinafter the same), tmtd 1%～50%, kresoxim-methyl 3%～50%, auxiliary agent, solvent and filler and water 10%～80%.According to the controlling object difference, 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%～60% missible oil:
Triazolone 0.5%～55%
Tmtd 1%～50%
Kresoxim-methyl 1%～30%
Solvent 35%～85%
Emulsifier 3%～15%
5%～50% suspending agent, aqueous emulsion:
Triazolone 0.5%～55%
Tmtd 1%～50%
Kresoxim-methyl 1%～35%
Solvent 5%～45%
Auxiliary agent 3%～15%
Water 10%～70%
5%～60% wetting powder, water dispersible granules:
Triazolone 0.5%～55%
Tmtd 1%～50%
Kresoxim-methyl 1%～30%
Adsorbent, filler 35%～75%
Auxiliary agent 3%～15%
The beneficial effect inventor passes through the generation to above-mentioned 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 triazolone, tmtd, and its target is to reduce production costs, improve preventive effect, improvement pesticide resistance.The present invention prevents and treats powdery mildew of wheat and barley and rust, double other the multiple fungal diseases of wheat of controlling.The present invention meets the needs of the nuisanceless production of current agricultural product.
Triazolone in composite dose and tmtd have very high bactericidal activity to obligatory parasitic bacteria such as white powder germ and rest fungus, and cost is very low.Kresoxim-methyl also 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, and is especially good to the obligatory parasitic bacteria preventive effect.After three medicines were composite, fungicidal spectrum obviously increased, and drug effect strengthens, and the preventive effect of powdery mildew and rust is stabilized in more than 85%, and its production cost uses kresoxim-methyl to reduce by 20%～35% more separately, has really reached the purpose that a medicine is controlled more.
The present invention is through indoor and field control effectiveness test, and its result shows that three kinds of compositions hold mutually, and of many uses, safe in utilization, effect is remarkable.Compare with other agricultural chemicals and to have following advantage:
1. formulation product of the present invention belongs to the biological agricultural chemicals of high-efficiency 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 the broad spectrum activity of wheat diseases, 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.
3. this formulation product using method is simple, cost is low, and production cost uses kresoxim-methyl to reduce by 20%～35% more separately, and peasant household all can accept.
4. should invention to wheat safety, control wheat main disease effective is stabilized in more than 85% the preventive effect of powdery mildew and rust, is not easy to develop immunity to drugs.
Four, specific embodiments and effect
(1) indoor prescription screening
It is to be dissolved in solvent in varing proportions respectively with the former medicine of triazolone, tmtd and kresoxim-methyl that virulence and coefficient of synergism are measured, and adopts the leaf section method that exsomatizes, and measures the inhibition activity to wheat powdery mildew (seeing Table 1) and rest fungus; Or sneak into culture matrix, measure inhibition activity to other disease fungus growths on the wheat.Calculate EC
50Value and coefficient of synergism.According to main controlling object, 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 control wheat powdery mildew
| Medicament | Regression equation | Correlation coefficient | EC 50 | Coefficient of synergism (SR) |
| The former medicine of kresoxim-methyl | Y＝7.1297+1.4617X | 0.9914 | 0.0349 | / |
| The former medicine of triazolone | Y＝6.6661+2.0635X | 0.9889 | 0.1558 | / |
| The former medicine of tmtd | Y＝4.4838+0.9618X | 0.9577 | 3.4412 | / |
| Good fortune: three: benzene 28: 1: 1 | Y＝4.4960+2.6221X | 0.9999 | 1.5568 | 0.44 |
| Good fortune: three: benzene 27: 1: 2 | Y＝7.7505+1.1447X | 0.9627 | 0.4121 | 1.02 |
| Good fortune: three: benzene 26: 3: 1 | Y＝6.6690+3.6036X | 0.9282 | 0.3445 | 1.56 |
| Good fortune: three: benzene 26: 2: 2 | Y＝6.1654+2.5110X | 0.9213 | 0.3435 | 1.13 |
| Good fortune: three: benzene 25: 3: 2 | Y＝6.1101+1.1585X | 0.9341 | 0.1101 | 3.25 |
(2) field operation technique and drug effect thereof
1. control wheat powdery mildew
Test is located at emerging town, Yancheng City suburb, Jiangsu Province, experimental field area 0.16hm
2, preceding crop is a paddy rice.Wheat broadcasted sowing on November 10th, 2002, the rice stubble zero tillage, and applications of farmyard manure is made base manure, cured fertile 150Kg/hm
2, carbon ammonium 450Kg/hm
2, striking root fertilizer urea 600Kg/hm
2Select susceptible wheat breed Henan wheat No. 34.Mays 4 in 2003 the spray medicine, wheat is in blooming stage, May 11 for the second time, May 18 for the third time, totally three medications.30% triazolone tmtd kresoxim-methyl SC (the former medicine 250g of tmtd, the former medicine 30g of triazolone, the former medicine 20g of kresoxim-methyl, dispersant lignosulfonates 100g, thickener xanthan gum 2g, antifreezing agent glycerine 50mL, defoamer organic silicone 20g, deionized water 528mL) per hectare 450,600,750mL, contrast medicament 25% triazolone WP 600g, 50% tmtd WP 1500g and 30% kresoxim-methyl 600mL, not dispenser of blank.The sharp agricultural sprayer of Singapore, water consumption 750Kg/hm
2
Control the results are shown in Table 1, the preventive effect of 30% triazolone tmtd kresoxim-methyl SC per hectare 600mL and 750mL using dosage is respectively 81.19% and 89.31%, apparently higher than the preventive effect (61.37%) of per hectare 450mL, and better than the preventive effect of 3 kinds of contrast medicaments, significant difference.
The effect of table 1 30% triazolone tmtd kresoxim-methyl SC control wheat powdery mildew
| 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 (%) |
| 30% 3 good fortune benzene SC 450mL/hm 2 | 15.87 | 16.35 | 15.79 | 16.27 | 16.07 | 7.66 | 61.37a |
| 30% 3 good fortune benzene SC 600mL/hm 2 | 10.75 | 13.91 | 8.98 | 10.87 | 11.13 | 3.73 | 81.19c |
| 30% 3 good fortune benzene SC 750mL/hm 2 | 7.48 | 7.11 | 7.98 | 7.87 | 7.61 | 1.75 | 89.31c |
| 25% triazolone WP 600g/hm 2 | 13.99 | 12.97 | 13.91 | 15.38 | 14.07 | 5.91 | 70.19b |
| 50% tmtd WP 1500g/hm 2 | 14.17 | 14.26 | 13.63 | 13.72 | 13.95 | 5.81 | 70.70b |
| 30% kresoxim-methyl SC 600mL/hm 2 | 13.05 | 13.32 | 13.19 | 13.44 | 13.25 | 5.24 | 73.56b |
| CK | 26.72 | 25.48 | 26.08 | 27.45 | 26.44 | 19.83 | / |
2. prevent and treat wheat leaf rust (Puccinia recondita)
This test is located at Yancheng City suburb, Jiangsu Province, test area 0.15hm
2, preceding crop is a cotton.Wheat broadcasted sowing on November 16th, 2002, used sufficient base manure before the sowing.Select peaceful No. 1 of wheat susceptible variety salt.Have only extremely indivedual wheats to begin reveal any symptoms during spray Mays 10 in 2003 the medicine first time, this moment, wheat was in blooming stage, and the spray medicine second time requires the blade face even spraying, water consumption 750～900Kg/hm after 10 days
2Investigation on May 27 preventive effect.
Control the results are shown in Table 2, the preventive effect of 30% triazolone tmtd kresoxim-methyl SC per hectare 600mL and 750mL using dosage is respectively 78.91% and 90.39%, apparently higher than the preventive effect (64.19%) of per hectare 450mL, and better than the preventive effect of 3 kinds of contrast medicaments, significant difference.
The effect of table 2 30% triazolone tmtd kresoxim-methyl SC control wheat leaf rust
| Medicament | Repeat 1 | Repeat 2 | Repeat 3 | Repeat 4 | Mean value | Average preventive effect |
| 30% 3 good fortune benzene SC 450mL/hm 2 | 107.85 | 127.85 | 149.76 | 150.42 | 133.97 | 64.19a |
| 30% 3 good fortune benzene SC 600mL/hm 2 | 83.86 | 80.67 | 78.95 | 72.28 | 78.94 | 78.91b |
| 30% 3 good fortune benzene SC 750mL/hm 2 | 32.05 | 31.60 | 39.96 | 40.19 | 35.95 | 90.39c |
| 15% triazolone WP 1200g/hm 2 | 83.14 | 108.41 | 99.57 | 111.28 | 100.60 | 73.11b |
| 50% tmtd WP 1500g/hm 2 | 101.01 | 112.48 | 103.52 | 120.23 | 109.31 | 70.78b |
| 30% kresoxim-methyl SC 600mL/hm 2 | 87.38 | 84.19 | 90.28 | 89.23 | 87.77 | 76.54b |
| CK | 373.56 | 379.23 | 386.98 | 356.67 | 374.11 | / |
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. a composite bactericide of preventing and treating wheat class disease is characterized in that, the weight ratio that the effective ingredient in the pharmaceutical formulation contains tmtd, triazolone and kresoxim-methyl simultaneously is 25～26: 3: 1～2.
2. according to the described a kind of composite bactericide of preventing and treating wheat class disease of claim 1, it is characterized in that, by weight percentage, triazolone 0.5%～10%, tmtd 12.5%～50%, kresoxim-methyl 3%～25%, auxiliary agent, solvent, filler and water are 10%～80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014348 CN1271930C (en) | 2004-03-18 | 2004-03-18 | Built germicide for preventing and controlling wheat diseases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014348 CN1271930C (en) | 2004-03-18 | 2004-03-18 | Built germicide for preventing and controlling wheat diseases |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1561732A CN1561732A (en) | 2005-01-12 |
| CN1271930C true CN1271930C (en) | 2006-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410014348 Expired - Fee Related CN1271930C (en) | 2004-03-18 | 2004-03-18 | Built germicide for preventing and controlling wheat diseases |
Country Status (1)
| Country | Link |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364397C (en) * | 2005-09-15 | 2008-01-30 | 南京第一农药有限公司 | Germicide composition containing kresoxim-methyl and isoprothiolane and its application |
| 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 |
| CN100502653C (en) * | 2006-03-29 | 2009-06-24 | 河北省农林科学院植物保护研究所 | Compound bactericidal agent for prevention and control of wheat fungi diseases, and its application |
| CN101953351B (en) * | 2009-07-20 | 2013-03-13 | 中国中化股份有限公司 | Fungicide containing pyrametostrobin |
| CN103598193B (en) * | 2013-10-23 | 2015-04-01 | 江苏丰登作物保护股份有限公司 | Picoxystrobin and thiram containing sterilization composition and application thereof |
| BR102013027977A2 (en) | 2013-10-30 | 2015-09-15 | Rotam Agrochem Int Co Ltd | method of increasing yield by treatment with fungicidal compositions |
| CN103734163A (en) * | 2013-12-27 | 2014-04-23 | 江苏绿叶农化有限公司 | Bactericidal composition containing trifloxystrobin and application of bactericidal composition |
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- 2004-03-18 CN CN 200410014348 patent/CN1271930C/en not_active Expired - Fee Related
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Granted publication date: 20060830 |