CN102428952B - Synergistic germicide composition for controlling wheat take-all - Google Patents
Synergistic germicide composition for controlling wheat take-all Download PDFInfo
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- CN102428952B CN102428952B CN 201110365677 CN201110365677A CN102428952B CN 102428952 B CN102428952 B CN 102428952B CN 201110365677 CN201110365677 CN 201110365677 CN 201110365677 A CN201110365677 A CN 201110365677A CN 102428952 B CN102428952 B CN 102428952B
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Abstract
The invention discloses a synergistic germicide composition for controlling wheat take-all, which comprises the effective ingredients of silthiopham and epoxiconazole according to the weight ratio of 10:1-1:10. The germicide composition provided by the invention has excellent control effect on wheat take-all, the composition of the two effective ingredients has obvious synergistic effect, the use amount of the effective ingredients of the pesticide is reduced, the pesticide use cost is reduced, the economic effect is increased, and the bad influence of the pesticide on the environment is also lowered.
Description
Technical field
The present invention relates to pesticide sterilizing composite, is take Silthiopham and epoxiconazole as active ingredient, is used for preventing and treating take-all on agricultural.
Background technology
In the crop growth process, easily be subject to various diseases and infect, fungal disease particularly, it is of a great variety, causes harm serious, and for a long time, chemical control is to prevent and treat the main effective means of disease.
Take-all, a kind of root disease is to cause [Gaeumannomyces graminis (Sacc.) Are et Olivier] by Ascomycotina gang pyrenomycetes Gaeumannomyces core top softgel shell, only infects Mai Gen and basal part of stem 1-2 joint.Seedling stage, diseased plant was short and small, bottom Huang Yeduo, and in seminal root and ground, stem becomes grey black, causes wheat seeding withered in flakes when serious.That the sick seedling of shooting stage winter wheat is turned green is slow, it is few to tiller, and the most of blackening of diseased plant root is at basal part of stem and leaf sheath is inboard more obvious grey black subiculum occurs.
At present, mainly contain for the medicament of preventing and treating take-all: carbendazim, thiophanate-methyl, triazolone, Difenoconazole etc.These medicaments use for many years continuously, and pathogen develops immunity to drugs, in the situation that strengthen using dosage, control efficiency is still undesirable.
Silthiopham, english common name Silthiopham.Have good prolection, the lasting period is long, is mainly used in preventing and treating take-all, as seed treatment.Can use separately, also can be mixed with other seed treatment.
Epoxiconazole, english common name Epoxiconazole.Triazole bactericidal agent; have interior suction, protection and therapeutic action concurrently; it is C-14 demethylation enzyme inhibitor in sterol biosynthesis; to Ascomycetes, Basidiomycetes and comprise Alternaria, Ascochyta, the mould genus of tail spore, Colletotrichum, ball Cuo Pseudomonas, Phoma, Ramularia, Septoria, Venturia partly know disease, Erysiphaceae, Uredinales and some Seedborne pathogen have lasting protection and therapeutic action.Suitable crop wheat, barley, paddy rice, beet, rape, legume, vegetables, grape and apple etc.To under the crop safety recommended dose to crop safety, without poisoning.
Being mixed of different pesticide species is the common methods of the agriculture resistance disease of control.Screening by formulation of pesticide, filter out rational formula, can effectively improve actual control efficiency, reduce dosage, reduce costs, delay the generation of disease drug resistance, is the important means of the disease comprehensive regulation.
The present invention is on the basis of a large amount of indoor biometric tests and field medicine effect test, and discovery Silthiopham and epoxiconazole are mixed take-all is had obvious synergistic effect, can effectively prevent and treat take-all.
Summary of the invention
The purpose of this invention is to provide a kind of efficient, low toxicity and lasting period long, be conducive to the Synergistic bactericidal composition of comprehensive regulation take-all.
Another object of the present invention is that this bactericidal composition is used for preventing and treating take-all.
The technical solution used in the present invention is: a kind of Synergistic bactericidal composition be used to preventing and treating take-all, its active ingredient are Silthiopham and epoxiconazole, and the ratio of weight and number of Silthiopham and epoxiconazole is 10:1～1:10.
Synergistic bactericidal composition of the present invention can according to well known to a person skilled in the art method, be mixed with suspending agent, wetting powder, water dispersible granules.
Synergistic bactericidal composition of the present invention also contains the required auxiliary element of preparation pesticidal preparations, comprise one or more mixing in solvent, emulsifier, wetting agent, stabilizing agent, dispersant, thickener, defoamer, antifreezing agent, disintegrant, binding agent, filler, filler, medium etc., be known substance, various auxiliary agents commonly used in pesticidal preparations, can change to some extent according to different situations, be not particularly limited.
Synergistic bactericidal composition of the present invention has good control efficiency to take-all.
Synergistic bactericidal composition of the present invention is when preventing and treating take-all, and the general method of seed dressing that adopts is used, and also can adopt as required upper other operation techniques used of agricultural.
Composition pesticide provided by the invention has following beneficial effect.
1, bactericidal composition provided by the invention, show obvious synergistic effect in certain ratio range, the control efficiency of composition is significantly improved than single dose, has reduced the using dosage of agricultural chemicals, reduce drug cost, reduced the adverse effect of agricultural chemicals to ecotope.
2, the combination of two kinds of bactericide of the present invention, enlarged fungicidal spectrum.
3, two of bactericidal composition provided by the invention kinds of active ingredient mechanism of action are different, can overcome the long-term single shortcoming that makes with medicament easily produce resistance, extend the service life of medicament, to the comprehensive regulation important in inhibiting of take-all resistance.
4, bactericidal composition of the present invention is to crop safety.
Embodiment
In order to understand better essence of the present invention, be described further by following examples, but the present invention is not limited to these embodiment.In these embodiments, unless otherwise indicated, all percentages all are weight percentage.
Biologicall test embodiment:Silthiopham and epoxiconazole are mixed combination to tomato take-all germ Toxicity Determination.
Material is selected: wheat wheat in spite of illness is standby.
Test method: with reference to GB-T17980.109-2004.Namely first take 96% Silthiopham of certain mass, 97.3% epoxiconazole raw drug, add acetone fully to dissolve the Tween 80 aqueous solution dilution of rear use 0.1%, be mixed with respectively the single dose mother liquor, according to the purpose that is mixed, following serial proportioning is set: 10:1,4:1,2:1,1:2,1:4,1:10, each proportioning arranges 5 concentration gradients.
(logarithm value of μ g/ml) is as independent variable x, take the probit value of inhibiting rate as dependent variable y, sets up respectively the virulence regression equation formula, adopts DPS software to calculate the EC of single dose and each proportioning mixture take drug concentration
50(95% confidence limit) and the abundant method of employing Sun Yun are calculated the co-toxicity coefficient (CTC) of mixture.
According to the NY/T 1156.6-2006 bactericide synergy criteria for classifying: co-toxicity coefficient (CTC) 〉=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80＜co-toxicity coefficient (CTC)＜120 shows as summation action.
Result of the test sees Table 1.As can be seen from the test results, Silthiopham and epoxiconazole are between 10:1～1:10 at weight amount portion rate, and co-toxicity coefficient (CTC value) namely all shows obvious synergistic effect all greater than 120.Silthiopham and epoxiconazole are mixed and have reasonability and feasibility.
Table 1, Silthiopham and epoxiconazole and the different proportioning toxicity test result to tomato gaeumannomyces graminis (a certain pathogenic strain).
FORMULATION EXAMPLE 1(20% Silthiopham epoxiconazole suspension concentrate).
Following material all is weight percentage: Silthiopham 15%, epoxiconazole 5%, emulsifier fatty alcohol-polyoxyethylene ether 4%, calcium dodecyl benzene sulfonate 5%, triphenyl vinyl phenol polyoxyethylene poly-oxygen propylene aether 3%, defoamer epoxidized soybean oil 1%, antifreezing agent glycerine 0.5%, surplus are water.Above-mentioned formula is pulverized in proportion in advance, then adds in sand mill and grind, and allotment making 20% Silthiopham epoxiconazole suspension concentrate after high shear mixing.
This embodiment is used for preventing and treating take-all, 20% Silthiopham epoxiconazole suspension concentrate effective ingredient consumption 40 grams/kilogram seed Dressing, and after the wheat jointing, preventive effect is 90.1%.Contrast single dose 12.5% Silthiopham suspending agent effective ingredient consumption 45 grams/kilogram seed, 12.5% epoxiconazole suspension concentrate effective ingredient consumption 200 grams/kilogram seed adopt the same method dispenser, and after the wheat jointing, preventive effect is respectively 71.3%, 72.4%.
FORMULATION EXAMPLE 2(20% Silthiopham epoxiconazole wetting powder).
Following material all is weight percentage: Silthiopham 10%, and epoxiconazole 10%, wetting agent pull open powder 3%, dispersant naphthalenesulfonate formaldehyde condensation compound 6%, filler talcum powder 15%, surplus is filler kaolin.Above-mentioned formula is entered in blender after coarse crushing in proportion mix, more namely make 20% Silthiopham epoxiconazole wetting powder after air-flow crushing.
This embodiment is used for preventing and treating take-all, 20% Silthiopham epoxiconazole wetting powder effective ingredient consumption 30 grams/kilogram seed Dressing, and after the wheat jointing, preventive effect is 87.8%.Contrast single dose 12.5% Silthiopham suspending agent effective ingredient consumption 45 grams/kilogram seed, 12.5% epoxiconazole suspension concentrate effective ingredient consumption 200 grams/kilogram seed adopt the same method dispenser, and after the wheat jointing, preventive effect is respectively 74.6%, 71.9%.
FORMULATION EXAMPLE 3(30% Silthiopham epoxiconazole water dispersant).
Following material all is weight percentage: Silthiopham 5%, and epoxiconazole 25%, wetting agent lauryl sodium sulfate 6%, dispersant polycarboxylate 4%, disintegrant sodium chloride 2%, binding agent polyethylene glycol 3%, stabilizing agent soluble starch 3%, surplus is carrier kaolin.Dry pulverization process, granulation, drying, screening make 30% Silthiopham epoxiconazole water dispersant in proportion with above-mentioned formula.
This embodiment is used for preventing and treating take-all, 30% Silthiopham epoxiconazole water dispersant effective ingredient consumption 25 grams/kilogram seed Dressing, and after the wheat jointing, preventive effect is 88.3%.Contrast single dose 12.5% Silthiopham suspending agent effective ingredient consumption 45 grams/kilogram seed, 12.5% epoxiconazole suspension concentrate effective ingredient consumption 200 grams/kilogram seed adopt the same method dispenser, and after the wheat jointing, preventive effect is respectively 74.2%, 73.1%.
Can illustrate by above embodiment, Synergistic bactericidal composition of the present invention in the situation that effective ingredient consumption reduce or be suitable, to the control efficiency of take-all significantly better than contrast single dose (12.5% Silthiopham suspending agent and 12.5% epoxiconazole water dispersant).The use of Synergistic bactericidal composition of the present invention has improved actual control efficiency, has reduced drug cost, delays the generation of disease drug resistance, has also reduced the harmful effect of agricultural chemicals to environment simultaneously.
Claims (2)
1. one kind is used for preventing and treating the Synergistic bactericidal composition of take-all, and it is characterized in that: active ingredient is Silthiopham and epoxiconazole, and the part by weight of Silthiopham and epoxiconazole is 10:1～1:10.
2. a kind of Synergistic bactericidal composition be used to preventing and treating take-all according to claim 1, it is characterized in that: its formulation is suspending agent, wetting powder or water dispersible granules.
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| CN 201110365677 CN102428952B (en) | 2011-11-17 | 2011-11-17 | Synergistic germicide composition for controlling wheat take-all |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103238621A (en) * | 2012-02-04 | 2013-08-14 | 陕西美邦农药有限公司 | Bactericidal composition containing silthiopham and triazole compound |
| CN103120177A (en) * | 2013-02-06 | 2013-05-29 | 吉林省八达农药有限公司 | Agricultural bactericide composition containing silthiopham and triazole fungicide |
| CN106576550A (en) * | 2016-12-20 | 2017-04-26 | 郭高升 | Method and fertilizer for preventing and treating wheat take-all |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0094564B1 (en) * | 1982-05-14 | 1987-09-30 | BASF Aktiengesellschaft | Azolyl-methyl oxiranes, their preparation and use as medicaments and plant protecting agents |
| CN1052234C (en) * | 1994-12-15 | 2000-05-10 | 孟山都公司 | Fungicides for the control of take-all disease of plants |
| ES2268073T3 (en) * | 2001-04-11 | 2007-03-16 | Monsanto Technology Llc | MICROENCAPSULATION OF AN AGRICULTURAL ACTIVE AGENT THAT HAS AN ELEVATED FUSION POINT. |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0094564B1 (en) * | 1982-05-14 | 1987-09-30 | BASF Aktiengesellschaft | Azolyl-methyl oxiranes, their preparation and use as medicaments and plant protecting agents |
| CN1052234C (en) * | 1994-12-15 | 2000-05-10 | 孟山都公司 | Fungicides for the control of take-all disease of plants |
| ES2268073T3 (en) * | 2001-04-11 | 2007-03-16 | Monsanto Technology Llc | MICROENCAPSULATION OF AN AGRICULTURAL ACTIVE AGENT THAT HAS AN ELEVATED FUSION POINT. |
Non-Patent Citations (1)
| Title |
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| 德温特.《德温特数据库中专利文献的摘要》.《德温特数据库》.2007,1. * |
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