CN103081931A - Benthiavalicarb isopropyl/dimethomorph bactericidal composition - Google Patents
Benthiavalicarb isopropyl/dimethomorph bactericidal composition Download PDFInfo
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- CN103081931A CN103081931A CN2013100166638A CN201310016663A CN103081931A CN 103081931 A CN103081931 A CN 103081931A CN 2013100166638 A CN2013100166638 A CN 2013100166638A CN 201310016663 A CN201310016663 A CN 201310016663A CN 103081931 A CN103081931 A CN 103081931A
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- dimethomorph
- benzene metsulfovax
- bactericidal composition
- downy mildew
- benthiavalicarb isopropyl
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Abstract
The invention relates to a benthiavalicarb isopropyl/dimethomorph bactericidal composition which is composed of benthiavalicarb isopropyl and dimethomorph in a mass ratio of 3:1-1:5. The bactericidal composition provided by the invention is suitable for controlling downy mildew of cucumber. The benthiavalicarb isopropyl/dimethomorph compound has obvious synergistic action, lowers the pesticide consumption, and has great economic benefit and social benefit after being popularized.
Description
Technical field
The bactericidal composition that the present invention relates to is take benzene metsulfovax and dimethomorph as active ingredient, is used for the control cucumber downy mildew.
Background technology
The benzene metsulfovax, English name: benthiavalicarb-isopropyl, chemical name [[(6-fluoro benzothiazole-2-yl)-ethylamino formoxyl]-2-methyl-propyl] carbamic acid isopropyl ester.New type bactericide benzene metsulfovax has very strong prevention, treats, oozes and annotate active and good lasting effect and resistance of rainwater washing against are arranged.In field trial, the benzene metsulfovax still can effectively be controlled the downy mildew of late blight, grape and other crops of potato and tomato under lower dosage.Benzene metsulfovax and other bactericide are made into mixture, also can extraordinary drug effect be arranged to these germs.
Dimethomorph, English common name: dimethomorph, it is single-minded ovicidal Gammaproteobacteria fungi bactericide, its effect characteristics are to destroy the formation of cell envelope, stages to oomycetes history of life has effect, formation stages at sporangiophore and egg spore is particularly responsive, and (＜0.25 μ g/ml) namely is suppressed under extremely low concentration.Be widely used in vegetables downy mildew, epidemic disease, seedling stage damping off, black shank etc. by the fungus-caused disease control of Mastigomycotina Oomycete, the tool systemic activity.Do not considering under the drug-fast prerequisite of disease fungus, the more now widely used metalaxyl of drug effect, white urea cyanogen, aliette, Wakil etc. are high.Using separately has higher resistance risk, thus the composite uses of protective fungicide such as normal and mancozeb, with the generation of delaying drug resistance.
For many years a large amount of uses of single dose and conventional complex preparation, cause this type of medicament resistance to increase to some extent, the expense raising in process of promoting the use of due to the agricultural chemicals new product, plantation family production cost also increases thereupon, how to develop the potential value of old product, making it to continue to play a greater role, is a project that is worth research, and we conduct in-depth research for this situation for this reason.Cucumber is a kind of at world wide cultivated area vegetable variety widely, cucumber downy mildew is a kind of Common Diseases in the green cucumber process, the harm phase is long, propagation is fast, often cause the significantly underproduction of crop serious period, have a strong impact on quality and economic benefit, develop its relevant control product and have the great market space.
Summary of the invention
The objective of the invention is the benzene metsulfovax that the mechanism of action is different and dimethomorph and carry out compositely, the bactericidal composition of a kind of efficient, low toxicity, low-residual is provided, be used for the control cucumber downy mildew.
Technical scheme of the present invention: take benzene metsulfovax and dimethomorph as active ingredient, the ratio of quality and the number of copies of benzene metsulfovax and dimethomorph is 3:1～1:5, and all the other are to allow in agricultural chemicals to use and the acceptable auxiliary element.
Bactericidal composition of the present invention can adopt known method to be prepared into water dispersible granules and suspending agent.
The auxiliary agent that uses in bactericidal composition of the present invention comprises that surfactant, dispersant, filler, filler etc. and other are of value to the known substance of active ingredient stable and performance drug effect in preparation, all various compositions commonly used in pesticidal preparations or that permission is used, be not particularly limited, concrete composition and consumption require to determine by simple test according to formula.
Product described in the invention can finished product preparation form provide, namely in composition, each material mixes, the form that the composition of composition also can single dose provides, and directly mixes in tank or bucket before use, then is diluted to needed concentration.The frequency of administration of the present composition and amount of application change with weather condition and crop state variation, can reach the purpose of control by using suitable formulation.
Beneficial effect of the present invention is: 1, two kinds of active ingredient is composite has an obvious synergistic effect, has improved control efficiency; 2, two kinds of active ingredients are composite, there is not cross resistance in mechanism of action uniqueness, has reduced the agricultural chemicals usage amount, thereby has reduced cost and the pollution that has reduced environment, the resistance management that is conducive to disease, it is applied has larger economic benefit and social benefit.
Technology origin of the present invention: in order effectively to prevent and treat cucumber downy mildew, further understand benzene metsulfovax and the composite synergy type of dimethomorph, the inventor has carried out a large amount of Toxicity Determination tests and has been studied, and specifically is summarized as follows: benzene metsulfovax, the former medicine of dimethomorph are made respectively 20% suspending agent carry out indoor pot experiment.Test method is carried out with reference to Wu Wenjun " chemical protection of plant experimental technique introduction " (1993).According to requirement of experiment, make respectively single dose, and the type of respective quality ratio.The concrete data of result of the test see Table 1.
Table 1, benzene metsulfovax and dimethomorph indoor pot experiment data.
Method abundant according to Sun Yun calculated the toxicity index of each medicament and the co-toxicity coefficient of mixture (CTC value), and when CTC≤80 are antagonism, 80 ﹤ CTC ﹤ 120 are summation action, and CTC 〉=120 are synergistic effect.
Suppress growth test by indoor bacterium colony and find, benzene metsulfovax and dimethomorph all have synergistic effect to cucumber downy mildew afterwards according to the ratio of 3:1～1:5 is composite, and wherein obvious with 1:3 synergy, co-toxicity coefficient is 227.68, and both compound synergic is remarkable.
Embodiment
Below in conjunction with embodiment, content of the present invention is described in further detail, in embodiment, mentioned content is not limitation of the invention, material prescription select to suit measures to local conditions and on result without substantial impact.In these embodiments, unless otherwise indicated, all percentages all are weight percentage.
Embodiment 1: 24% benzene metsulfovax dimethomorph water dispersion granula.
Benzene metsulfovax 6%, dimethomorph 18%, lauryl sodium sulfate (surfactant) 2%, white carbon (filler) 4%, sodium lignin sulfonate (dispersant) 5%, bentonite (filler) complements to 100%.Dry pulverization process, granulation, drying, screening namely make 24% benzene metsulfovax dimethomorph water dispersion granula in proportion with above-mentioned formula.
This formula control cucumber downy mildew is by 1500 times of dilution sprayings, and after medicine, 7 days control efficiency are 87.3%.20% benzene metsulfovax suspending agent is by 1000 times of dilution sprayings, and after medicine, 7 days control efficiency are that 81.2%, 40% dimethomorph water dispersion granula dilutes spraying by 1000 times, and after medicine, 7 days control efficiency are 69.7%.Test shows that 24% benzene metsulfovax dimethomorph water dispersion granula has good control efficiency to cucumber downy mildew, is better than corresponding single dose.
Embodiment 2: 20% benzene metsulfovax dimethomorph suspending agent.
Benzene metsulfovax 4%, dimethomorph 16%, methyl naphthalene sulfonate formaldehyde condensate (dispersant) 5%, the 0203B(surfactant) 6%, white carbon (filler) 5%, aluminium-magnesium silicate (suspending agent) 0.4%, ethylene glycol (antifreezing agent) 3%, tributyl phosphate (defoamer) 1.5%, deionized water complements to 100%.Above-mentioned formula is pulverized in proportion in advance, then added in sand mill and grind, allotment making 20% benzene metsulfovax dimethomorph suspending agent after high shear mixing.
This formula control cucumber downy mildew is by 2000 times of dilution sprayings, and after medicine, 7 days control efficiency are 91.3%.20% benzene metsulfovax suspending agent is by 1000 times of dilution sprayings, and after medicine, 7 days control efficiency are that 81.2%, 40% dimethomorph water dispersion granula dilutes spraying by 1000 times, and after medicine, 7 days control efficiency are 69.7%.Test shows that 20% benzene metsulfovax dimethomorph suspending agent has good control efficiency to cucumber downy mildew, is better than corresponding single dose.
Claims (3)
1. the bactericidal composition of a benzene metsulfovax and dimethomorph, it is characterized in that: active ingredient is comprised of benzene metsulfovax and dimethomorph, and the ratio of quality and the number of copies of benzene metsulfovax and dimethomorph is 3:1～1:5.
2. the bactericidal composition of benzene metsulfovax according to claim 1 and dimethomorph, make water dispersible granules and suspending agent when it is characterized in that practical application.
3. the bactericidal composition of benzene metsulfovax according to claim 1 and 2 and dimethomorph, is characterized in that for the control cucumber downy mildew.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310016663.8A CN103081931B (en) | 2013-01-17 | 2013-01-17 | The bactericidal composition of benzene metsulfovax and dimethomorph |
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| CN201310016663.8A CN103081931B (en) | 2013-01-17 | 2013-01-17 | The bactericidal composition of benzene metsulfovax and dimethomorph |
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| CN103081931A true CN103081931A (en) | 2013-05-08 |
| CN103081931B CN103081931B (en) | 2016-02-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160357023A1 (en) * | 2015-02-02 | 2016-12-08 | Boe Technology Group Co., Ltd. | Liquid Crystal Lens and Display Apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09183703A (en) * | 1995-12-28 | 1997-07-15 | Kumiai Chem Ind Co Ltd | Bactericide composition for agriculture and horticulture |
| CN102217616A (en) * | 2011-04-26 | 2011-10-19 | 中化蓝天集团有限公司 | Fluopicolpkd-containing bactericidal composition |
| CN102657196A (en) * | 2012-04-12 | 2012-09-12 | 广东中迅农科股份有限公司 | Benthiavalicarb-isopropyl and metalaxyl-M containing pesticide composition with synergist effects |
| CN103004862A (en) * | 2012-12-16 | 2013-04-03 | 陕西农心作物科技有限公司 | Sterilization composition containing benthiavalicarb isopropyl and bactericide for preventing and treating oomycetes |
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2013
- 2013-01-17 CN CN201310016663.8A patent/CN103081931B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09183703A (en) * | 1995-12-28 | 1997-07-15 | Kumiai Chem Ind Co Ltd | Bactericide composition for agriculture and horticulture |
| CN102217616A (en) * | 2011-04-26 | 2011-10-19 | 中化蓝天集团有限公司 | Fluopicolpkd-containing bactericidal composition |
| CN102657196A (en) * | 2012-04-12 | 2012-09-12 | 广东中迅农科股份有限公司 | Benthiavalicarb-isopropyl and metalaxyl-M containing pesticide composition with synergist effects |
| CN103004862A (en) * | 2012-12-16 | 2013-04-03 | 陕西农心作物科技有限公司 | Sterilization composition containing benthiavalicarb isopropyl and bactericide for preventing and treating oomycetes |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160357023A1 (en) * | 2015-02-02 | 2016-12-08 | Boe Technology Group Co., Ltd. | Liquid Crystal Lens and Display Apparatus |
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