CN103493835A - Synergistic bactericide and preparation method thereof - Google Patents
Synergistic bactericide and preparation method thereof Download PDFInfo
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- CN103493835A CN103493835A CN201310399262.5A CN201310399262A CN103493835A CN 103493835 A CN103493835 A CN 103493835A CN 201310399262 A CN201310399262 A CN 201310399262A CN 103493835 A CN103493835 A CN 103493835A
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- bactericide
- thiophanate
- methyl
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- hexaconazole
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Abstract
The invention provides a synergistic bactericide and a preparation method thereof, which relates to the technical field of production of pesticides. The synergistic bactericide comprises the active components consisting of thiophanate methyl, hexaconazole and additives, wherein on the basis of the total weight of the bactericide, thiophanate methyl accounts for 2 to 50%, hexaconazole accounts for 1 to 20%, an auxiliary agent accounts for 2 to 25%, and a filling material accounts for 5 to 95%. A bactericide composition which contains thiophanate methyl and hexaconazole and is in the form of a wettable powder or suspending agent can be prepared by adding the above-mentioned components into an enamel mixing tank for uniform mixing and carrying out air jet pulverization or grinding. The synergistic bactericide employs compounding of thiophanate methyl and hexaconazole, has the characteristics of low toxicity, low residual, a wide insecticidal spectrum, good persistence, low cost and in particular, nuisanceless control, and is an ideal pesticide variety for prevention and treatment of a variety of diseases.
Description
Technical field
The present invention relates to a kind of pesticide production technology field.
Background technology
Rice sheath blight disease is the important disease of paddy rice, and 2.9 hundred million mu of left and right of annual onset area, be the serious hindrance of China's rice high yield stable yields.And realize that the control of rice disease harmless boilogical is developing direction and the objective of the struggle in agricultural plant protection field.Prevent and treat the leading biopesticide bactericide jinggangmeisu of rice sheath blight disease, once forcibly occupy for a long time the market share of China's rice sheath blight disease controlling.But because drug effect descends to some extent, output had been down to 30,000-40,000 tons (calculating by 5% preparation) in the last few years, and own azoles alcohol has been substituted the status of its first bactericide.Usable floor area is reduced to 1.5 hundred million mu of left and right.Yet continuing to bring out of novel product, seized the market share of jinggangmeisu.In domestic kind, the maximum kind of preventing and treating the rising of rice sheath blight disease demand is own azoles alcohol, and peasant household is called " the good medicine that the agriculture basis is cheap, effect is fast, cure the disease and increase production ".After domestic agrotechnical plant protection department promotes, own azoles alcohol constantly heats up on market in recent years.140,000 yuan/tons of the former medicines of current own azoles alcohol, it is higher than jinggangmeisu that own azoles alcohol is prevented and treated single batch of drug cost of rice sheath blight disease, 3.5 yuan/time.Therefore, the novel agrochemical of research and development high-efficiency low-toxicity, the low-residual development trend that is inevitable.
Thiophanate-methyl belongs to benzimidazole, is a kind of broad spectrum activity systemic fungicide, can prevent and treat the various crop disease, has interior suction, preventive and therapeutic action.It is converted into carbendazim in plant corpus, and in the mitosis of interference bacterium, the formation of spindle, affect cell division.Longer in the time limit of Main Rice Diseases control because of alone thiophanate-methyl, the pesticide resistance of crop pest has had significant enhancing.But thiophanate-methyl can not be mixed with alkalescence and Inorganic Copper preparation.Long-term single use easily produces resistance and with benzimidazole germicide, cross resistance is arranged, and should note using with other medicament wheels.
Own azoles alcohol belongs to the triazole type demethylation inhibitor; Sterol demethylation inhibitor antibacterial activity is high, and the disease that fungi especially Basidiomycota and Ascomycota are caused has protection and the therapeutic action of broad spectrum activity.Destroy and stop the biosynthesis of the cell membrane important composition composition ergosterol of germ, cause cell membrane not form, finally make germ death.This medicine can effectively be prevented and treated the disease that sac fungi, basidiomycetes and imperfect fungus cause; especially to basidiomycetes and the microbial disease of ascus as powdery mildew, rust, scab, brown spot, anthracnose, banded sclerotial blight, false smut etc. have preventive and therapeutic action preferably, there is interior suction, protection and therapeutic activity.But invalid to Oomycete and bacterium.
Summary of the invention
The objective of the invention is for current efficient, wide spectrum disease agricultural chemicals very lacks and existing agricultural chemicals single dose exists multiple deficiency, a kind of synergic bactericide that wetting powder or suspending agent be product forms of take is provided.
The present invention is comprised of active ingredient thiophanate-methyl and own azoles alcohol, and composition raw materials percentage by weight is own azoles alcohol 2～20%, thiophanate-methyl 1～50%, auxiliary agent 2～25%, filler 5～95%.A kind of synergic bactericide is made suspending agent or wetting powder.
The present invention shows all has stronger preventing disease theraping effect to agricultural disease, can be applicable to prevent and treat the multiple diseases such as rice sheath blight disease.This microbicide compositions is different from existing other microbicide compositions or agricultural chemicals single dose, adopt the reasonable combination of low toxicity highly effective pesticide thiophanate-methyl and these two kinds of agricultural chemicals of own azoles alcohol, can delay the generation of disease drug resistance, use simple, safety, control efficiency is good, and residual quantity is low environmentally safe, promote Crop securify and fine quality production, agricultural production and income is played an important role.
When this product forms is wetting powder, described auxiliary agent auxiliary agent is by dispersant 1～20%, and wetting agent 1～5% forms, and dispersant adopts lignosulfonates, NNO, pulls open a kind of or any two or three mixture of powder.Wherein, lignosulfonates are selected calcium lignosulfonate or sodium lignin sulfonate; Wetting agent adopts sodium alkyl benzene sulfonate or alkyl benzene calcium sulfonate.That filler adopts is silica-based, a kind of or mixture in precipitated calcium carbonate, white carbon, silica-based employing potter's clay, kaolin and diatomite etc.
When this product forms is suspending agent, described auxiliary agent is by dispersion moisture agent 1～15%, antifreeze 0.3～3%, thickener 0.4～5%, defoamer 0.3～2% forms, dispersion moisture agent adopts polyoxyethylene triphenylethylene phosphenylic acid salt, or alkylnaphthalene sulfonate, or a kind of or mixture in alkylphenol polyoxyethylene; Antifreeze adopts antifreeze to adopt alcohols, selects propane diols or glycerine or ethylene glycol; Thickener adopts xanthans or aluminium-magnesium silicate; Defoamer adopts silicone defoaming agent.Filler adopts water.
The present invention adopts the use that is mixed of the reasonable combination of these two kinds of agricultural chemicals of low toxicity highly effective pesticide thiophanate-methyl and own azoles alcohol, it had both retained the sterilization wide spectrum of low toxicity highly effective pesticide thiophanate-methyl and own azoles alcohol and the good advantage to the control efficiency of disease, can overcome the shortcoming of existence again, realize the target of corps diseases non-environmental pollution control, the toxicity that reduction is biological to other, the minimizing chemical substance is residual crops, enlarge fungicidal spectrum, reduce drug cost, to adapt to China, the crops such as paddy rice are produced to the requirement that the low toxicity highly effective pesticide is used.
The present invention also proposes its preparation process of above synergic bactericide:
By said ratio weighing jinggangmeisu and thifluzamide, auxiliary agent and filler, after it is characterized in that first thiophanate-methyl, own azoles alcohol and auxiliary agent, filler fully being mixed in the enamel stirred tank, pulverize or after sand mill grinds through airslide disintegrating mill, then mix and make finished product.
Finished product meets or the every compulsory index requirement to wetting powder or suspending agent product higher than country.
Thiophanate-methyl of the present invention and own azoles alcohol Recompounded pesticide, low toxicity, low-residual, fungicidal spectrum are wide, and synergy is obvious, and control efficiency is good, and cost accounting reduces, and is to prevent and treat the comparatively desirable higher effective and lower toxic pesticide preparation variety of rice disease.
The formulation that this microbicide compositions is made has produces many advantages such as simple, efficient, that the preparation cost is low, and environment compatibility is good.This microbicide compositions is different from existing other microbicide compositions, can delay drug-fast generation, reaches the purpose of agricultural production and income and food safety production.
Embodiment
Embodiment 1: prepare the own azoles alcohol of 40% thiophanate-methyl wetting powder
Thiophanate-methyl 37%
Own azoles alcohol 3%
The NNO(dispersant) 3%
Sodium lignin sulfonate (dispersant) 7%
Sodium alkyl benzene sulfonate (dispersant) 1%
White carbon (filler) 49%
Take material by above-mentioned part by weight, under agitation add successively each material, after airslide disintegrating mill is pulverized and to be uniformly mixed, obtain product, prevented and treated the rice sheath blight disease field control effectiveness test, drug effect is better, to the rice sheath blight disease preventive effect 80%.
The own azoles of table 1 40% thiophanate-methyl alcohol wetting powder is prevented and treated 10 days preventive effects (%) after the rice sheath blight disease medicine
Embodiment 2: prepare 45% thiophanate-methyl hexaconazole suspending agent
Thiophanate-methyl 40%
Own azoles alcohol 5%
Polyoxyethylene nonylphenol ether (NP-9) (dispersion moisture agent) 8%
Propane diols (antifreeze) 1%
Xanthans (thickener) 1%
Silicone defoaming agent (SAG612) 2%
Water (filler) 43%
Take material by above-mentioned part by weight, after being uniformly mixed, through the sand mill sand milling, obtain product, prevented and treated the rice sheath blight disease field control effectiveness test.
Table 2 45% thiophanate-methyl hexaconazole suspending agent suspending agent is prevented and treated 10 days preventive effects (%) after the rice sheath blight disease medicine
Above result of the test shows, 45% thiophanate-methyl hexaconazole suspending agent more than 80%, and, with the remarkable advantage of non-environmental pollution control, is beneficial to the agricultural extension application to the rice sheath blight disease preventive effect.
Claims (5)
1. a synergic bactericide, is characterized in that containing active ingredient thiophanate-methyl, own azoles alcohol and auxiliary agent, filler, and the gross weight of composition of take is benchmark, thiophanate-methyl content is 2～50%, own azoles alcohol content is 1～20%, and auxiliary agent content is 2～25%, and filer content is 5～95%.
2. a kind of synergic bactericide according to claim 1, the formulation that it is characterized in that described bactericide is suspending agent or wetting powder.
3. a kind of synergic bactericide according to claim 2, is characterized in that the auxiliary agent of wetting powder is by dispersant 1～20%, and wetting agent 1～5% forms.
4. a kind of synergic bactericide according to claim 2, is characterized in that the auxiliary agent of suspending agent is by dispersion moisture agent 1～15%, antifreeze 0.3～3%, and thickener 0.4～5%, defoamer 0.3～2% forms.
5. the preparation method of a kind of synergic bactericide as claimed in claim 1, after it is characterized in that first thiophanate-methyl, own azoles alcohol and auxiliary agent, filler fully being mixed in the enamel stirred tank, pulverize or after sand mill grinds through airslide disintegrating mill, then mix and make finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310399262.5A CN103493835A (en) | 2013-09-05 | 2013-09-05 | Synergistic bactericide and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310399262.5A CN103493835A (en) | 2013-09-05 | 2013-09-05 | Synergistic bactericide and preparation method thereof |
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| CN103493835A true CN103493835A (en) | 2014-01-08 |
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| CN201310399262.5A Pending CN103493835A (en) | 2013-09-05 | 2013-09-05 | Synergistic bactericide and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006015865A1 (en) * | 2004-08-12 | 2006-02-16 | Syngenta Participations Ag | Fungicidal compositions |
| CN101543223A (en) * | 2009-01-09 | 2009-09-30 | 陕西韦尔奇作物保护有限公司 | Composition containing thiophonate-methyl and hexaconazole with bactericidal effect |
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2013
- 2013-09-05 CN CN201310399262.5A patent/CN103493835A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006015865A1 (en) * | 2004-08-12 | 2006-02-16 | Syngenta Participations Ag | Fungicidal compositions |
| CN101543223A (en) * | 2009-01-09 | 2009-09-30 | 陕西韦尔奇作物保护有限公司 | Composition containing thiophonate-methyl and hexaconazole with bactericidal effect |
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Application publication date: 20140108 |