CN104996429A - Bactericidal composition for preventing and controlling potato black scurf - Google Patents
Bactericidal composition for preventing and controlling potato black scurf Download PDFInfo
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- CN104996429A CN104996429A CN201510441250.3A CN201510441250A CN104996429A CN 104996429 A CN104996429 A CN 104996429A CN 201510441250 A CN201510441250 A CN 201510441250A CN 104996429 A CN104996429 A CN 104996429A
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- bactericidal composition
- fluazinam
- flutolanil
- black scurf
- potato black
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Abstract
The invention relates to a bactericidal composition for preventing and controlling potato black scurf. The bactericidal composition can effectively prevent and control the potato black scurf. The effective components of the bactericidal composition for preventing and controlling the potato black scurf are fluazinam and flutolanil, and the weight ratio of the fluazinam to the flutolanil is 1:30-30:1. The bactericidal composition can be prepared into a suspension emulsion, a suspending agent, wettable powder, water dispersible granules, granules, microcapsules, a microcapsule suspending agent and the like by adopting methods well known by the technical staff in the prior art. The bactericidal composition has obvious synergistic effect on the potato black scurf, the dosage can be reduced, cost can be reduced, a lasting period can be prolonged, and the bactericidal composition is high in efficiency, low in toxicity and little in residues.
Description
Technical field
The present invention relates to technical field of pesticide, particularly a kind of bactericidal composition preventing and treating potato black scurf.
Background technology
Potato, belong to Solanaceae herbaceos perennial, stem tuber can be edible, and within 2015, China starts potato staple food grainization strategy, is classified as the another staple food grain outside paddy rice, wheat, corn.Along with the development of China's Potato Industry, planting benefit once added, and cultivated area is also at constantly continuous enlargement, and the crop rotation time limit obviously shortens, and disease occurs to increase the weight of year by year, and therefore, the control of potato disease causes the attention of people gradually.
Also known as Rhizoctonia Disease, base rot disease, pathogen belongs to Rhizoctonia solani Kuhn to potato black scurf (Rhizoctonia solani K ü hn), is with potato seed and soilborne disease in spite of illness.Current registration is less for the medicament preventing and treating this disease, and bactericide uses continuously for a long time and easily produces resistance.Compound is reasonably mixed, and can to reach expanding prevention general, and delay drug-fast generation, the combination of some compound may produce synergistic effect, and therefore, composite reagent uses can reach the unapproachable effect of unitary agent.
Fluazinam belongs to 2,6-dinitroanilines, English common name: Fluazinam, the chloro-N-(3-of chemical name: 3-chloro-5-trifluoromethyl-2-pyridine radicals) fluoro-2,6-dinitro-para-toluidine molecular formula: the C of-α, α, α-three
13h
4cl
2f
6n
4o
4.For broad spectrum protection bactericide, very effective to Alternaria, Botrytis, Phytophthora, Plasmopara, Sclerotinia and Venturia germ, also there is good result to the Botrytis cinerea pathogen of anti-benzimidazole type and dicarboximide series bactericidal agent.
Flutolanil is novel succinate dehydrogenase inhibitors (SDHI) type formamide bactericide, is a kind of systemic fungicide with protection and therapeutic activity.English name: Flutolanil, chemical name: 3,7-isopropoxy-2-(trifluoromethyl) benzanilide, molecular formula: C
17h
16f
3nO
2, be used for preventing and treating the fungus-caused disease of some Basidiomycetes, and the disease that rhizoctonia causes, be particularly suitable for as potato seed inorganic agent control rhizoctonia.
The resistance risk evaluation research of fluazinam shows, be used alone this medicament for a long time and have very large resistance risk, the combination of the pesticide active ingredient of itself and other structure is carried out composite, both can expanding prevention general, delaying drug resistance, even may produce synergistic effect, thus improve control efficiency, reduce the usage amount of agricultural chemicals.Also there is no the report of fluazinam controlling disease mixed with flutolanil at present.
Summary of the invention
Be used alone the problem of very large resistance risk for a long time for solving fluazinam, the invention provides a kind of have remarkable synergistic effect, resistance risk low, to potato black scurf control efficiency good bactericidal composition.
Technical scheme of the present invention is:
Prevent and treat a bactericidal composition for potato black scurf, active ingredient is fluazinam and flutolanil, and the weight ratio of described fluazinam and flutolanil is 1:30-30:1.Except active ingredient, also comprise in composition pesticide in agricultural chemicals and allow to use and acceptable auxiliary component.Insecticides adjuvant comprises one or more of solvent, wetting agent, dispersant, interleaving agent, stabilizing agent, antifreezing agent, preservative, filler, adhesive etc.The use of auxiliary agent is selected according to formulation.
Preferably, the weight ratio of described fluazinam and flutolanil is 1:10-10:1.
More preferably, the weight ratio of described fluazinam and flutolanil is 1:1-5:1.
Further, the weight ratio of active ingredient fluazinam and flutolanil is 2.5:1.Under this weight ratio, synergistic effect is best.
In order to determine the co-toxicity of bactericidal composition of the present invention to tar spot, carry out co-toxicity research, result is as shown in table 1, show that fluazinam control to tar spot mixed with flutolanil has obvious synergistic effect, and be that within the scope of 1:10-10:1, synergy is the most obvious in the weight ratio of fluazinam and flutolanil.
Table 1 fluazinam indoor virulence result to tar spot mixed with flutolanil
Be that 20:1,10:1,5:1,2.5:1,1:1,1:2.5,1:5,1:10 with 1:20 mixed with flutolanil according to weight ratio by fluazinam, done indoor virulence test to potato black scurf bacterium, result is as shown in table 1; 9 mixed ratios all have synergistic effect, and wherein the co-toxicity coefficient of 5:1,2.5:1 and 1:1 is comparatively large, and when ratio is 2.5:1, co-toxicity coefficient is the highest, and namely synergistic effect is the most obvious.
Preferably, active ingredient fluazinam and the mass fraction of flutolanil in described bactericidal composition are 1-80%.
Further, active ingredient fluazinam and the mass fraction of flutolanil in described bactericidal composition are 2-30%.
Preferably, the formulation of described bactericidal composition is the one in suspension emulsion, suspending agent, wetting powder, water dispersible granules, granule, microcapsule formulations, microcapsule suspension suspending agent.
The described bactericidal composition preventing and treating potato black scurf is preventing and treating the application in potato black scurf.
Beneficial effect of the present invention is:
The present invention carries out composite with fluazinam and flutolanil for active ingredient, has obvious synergistic effect to potato black scurf, can significantly reduce field dosage, effectively reduces environmental pollution and residue of pesticide and reduces costs.
In addition, fluazinam is different from the mechanism of action of flutolanil, and the lasting period is long, can reduce times for spraying, and can delay drug-fast generation.Be mainly used in preventing and treating potato black scurf.
Embodiment
Example of formulations
Percentage composition in embodiment is weight percentage.
Embodiment 1:10% fluazinam+2 % flutolanil suspending agent
The former medicine of 97 % fluazinam (folding hundred) 10 %
The former medicine of 97 % flutolanil (folding hundred) 2 %
Polyoxyethylene nonylphenol ether NP-10(wetting dispersing agent) 1 %
Phenethyl phenol polyethenoxy ether 601(wetting dispersing agent) 3 %
Calcium lignosulfonate (wetting dispersing agent) 3 %
Xanthans 0.12 %
Silicone defoaming agent 0.15%
Ethylene glycol 3 %
Water complements to 100%.
By the ratio mixing of each components such as active ingredient, wetting dispersing agent and water according to formula, through 10000 r/min high speed shear 5 minutes, add sand mill and be ground to required particle diameter (average grain diameter is less than 3 microns), namely make 10% fluazinam+2 % flutolanil suspending agent.
Embodiment 2:10 % fluazinam+4 % flutolanil suspending agent
The former medicine of 97 % fluazinam (folding hundred) 10 %
The former medicine of 97 % flutolanil (folding hundred) 4 %
Polycarboxylate TERSPERSE 2700(wetting dispersing agent) 0.5 %
Sodium lignin sulfonate (wetting dispersing agent) 2 %
Castor oil polyoxyethylene ether BY-40(wetting dispersing agent) 5 %
Xanthans 0.13 %
Ethylene glycol 3%
Silicone defoaming agent 0.1%
Water complements to 100%.
By the ratio mixing of each components such as active ingredient, wetting dispersing agent and water according to formula, through 10000r/min high speed shear 5 minutes, add sand mill and be ground to required particle diameter (average grain diameter is less than 3 microns), make into 10% fluazinam+4 % flutolanil suspending agent.
Embodiment 3 10 % fluazinam+10 % flutolanil suspending agent
The former medicine of 97 % fluazinam (folding hundred) 10 %
The former medicine of 97 % flutolanil (folding hundred) 10 %
Calcium lignosulfonate (wetting dispersing agent) 3.5 %
NNO(wetting dispersing agent) 2 %
Phenethyl phenyl polyoxyethylene poly-oxygen propylene aether (wetting dispersing agent) 3.5 %
Xanthans 0.1 %
Ethylene glycol 3%
Silicone defoaming agent 0.1%
Water complements to 100%.
By the ratio mixing of each components such as active ingredient, wetting dispersing agent and water according to formula, through 10000r/min high speed shear 5 minutes, add sand mill and be ground to required particle diameter (average grain diameter is less than 3 microns), make into 10% fluazinam+10 % flutolanil suspending agent.
Embodiment 4 20 % fluazinam+8 % flutolanil water dispersible granules
The former medicine of 97 % fluazinam (folding hundred) 20 %
The former medicine of 97 % flutolanil (folding hundred) 8 %
Alkyl naphthalene sulfonic acid condensation polymer (Morwet D-425) (dispersant) 6 %
Naphthalene sulfonic acid-formaldehyde condensation product NNO(dispersant) 3 %
Neopelex (wetting agent) 1 %
Sodium sulphate (disintegrant) 0.5 %
Kaolin complements to 100 %.
By above-mentioned formula, active ingredient, dispersant, wetting agent, disintegrant and filler are mixed, pulverize with micro jet, through mediating, then to carry out after extruder grain, drying, screening, through sample analysis, namely can be made into 20 % fluazinam+8 % flutolanil water dispersible granules.
Embodiment 51 % fluazinam+1 % flutolanil granule
The former medicine of 97 % fluazinam (folding hundred) 1.03 g
The former medicine of 97 % flutolanil (folding hundred) 1.03 g
1% polyvinyl alcohol water solution 15 g
Kaolin 97.79g.
Said components is mixed, makes softwood, by the softwood made, through Squeezinggranulator granulation, dry, namely make 1 % fluazinam+1 % flutolanil granule.
Embodiment 6 10 % fluazinam+4 % flutolanil microcapsule suspension suspending agent
The present embodiment prepares microcapsule suspension suspending agent in accordance with the following methods, and concrete steps are as follows:
The former medicine of 20.62 g 97% fluazinam is added in 13g dimethylbenzene and fully dissolves, then add 3.42 g isocyanates and 1.71 g PEG 600, fully stir evenly, as oil phase; 0.3 g triphenyl vinyl phenol APEO, 1.5 g calcium lignosulfonates and 0.1 g polyvinyl alcohol and 53 g water Homogeneous phase mixing are as aqueous phase; Oil phase is mixed with water, and uses high-shear homogenizer emulsification pretreatment, obtains stable O/W emulsion; O/W emulsion is transferred in flask, stirs with the speed of 200 revs/min, be warmed up to 65 DEG C, react 4 hours, with citric acid adjust ph 6-6.5; Add 2 g ethylene glycol, 0.14 g xanthans stirs, and water supplies 100g, namely obtains 20% fluazinam microcapsule suspending agent.
Take the former medicine of 8.25 g 97% flutolanil, 4g triphenoethyl benzene phenol polyoxyethylene polyoxypropylene block polymer, 4g calcium lignosulfonate, 1g polyoxyethylene nonylphenol ether, 0.14g xanthans, 3g ethylene glycol, silicone defoaming agent 0.5g, water supplies 100g.Take each component according to above-mentioned formula and be placed in beaker, opening high-speed shearing machine 5 minutes, then sand mill 1700 revs/min grinding, detect sample particle diameter more than 95% at 1-5 micron, average grain diameter, below 3 microns, obtains 8 % flutolanil suspending agents.
20% fluazinam microcapsule suspending agent and 8% flutolanil suspending agent are mixed according to weight ratio 1:1 and namely obtains, 10 % fluazinam+4 % flutolanil microcapsule suspension suspending agents.
Field control effectiveness test embodiment
Application method: trench digging, after planting, the liquid for preparing is drenched stem tuber and around soil on, during preparating liquid, by 250L/hm
2the water yield, is converted to each community water yield and dosage, and medicine and water are fully mixed and can be used.Dosage is arranged: 270 and 360 a.i. g/ hm
2two dosage.
Control time and method:
Results " Invest, Then Investigate " potato block incidence, calculates disease index and control efficiency.
Stalk break grade scale on potato block:
0: without scab; 1: stem tuber has fragmentary scab, be no more than 5; 3: morbidity is comparatively light, and scab is little, and scab number is no more than 15; 5: fall ill medium, scab is comparatively large, and lesion area accounts for less than 25% of whole potato block; 7: fall ill heavier, lesion area accounts for whole potato block area 26% ~ 50%; 9: morbidity is heavy, and lesion area accounts for more than 51% of whole potato block area.
Computing formula is:
Table 2 fluazinam and flutolanil mixture prevent and treat potato black scurf field control effectiveness test result
As can be seen from Table 2:
1, when effective ingredient consumption is identical, the effect that the control efficiency of fluazinam and the composite composition of flutolanil is used alone higher than two kinds of medicaments, wherein embodiment 1 and embodiment 6(fluazinam: flutolanil=2.5:1) preventive effect the highest.Research and development of the present invention and promotion conference produce very large economic worth, are of great significance the control tool of potato black scurf.
2,10 % fluazinam+4 % flutolanil microcapsule suspension suspending agents are suitable to the preventive effect of tar spot with 10 % fluazinam+4 % flutolanil suspending agents, even better; Namely when fluazinam is identical with consumption with the ratio of flutolanil, due to formulation difference to some extent, because fluazinam is prepared to microcapsules, its lasting period extends, and therefore the microcapsule suspending agent of fluazinam is more outstanding with the control efficiency of mixing formulation to potato black scurf of flutolanil suspending agent mixing gained.
Claims (7)
1. prevent and treat a bactericidal composition for potato black scurf, it is characterized in that: active ingredient is fluazinam and flutolanil, the weight ratio of described fluazinam and flutolanil is 1:30-30:1.
2. prevent and treat the bactericidal composition of potato black scurf as claimed in claim 1, it is characterized in that: the weight ratio of described fluazinam and flutolanil is 1:10-10:1.
3. prevent and treat the bactericidal composition of potato black scurf as claimed in claim 2, it is characterized in that: the weight ratio of described fluazinam and flutolanil is 1:1-5:1.
4. prevent and treat the bactericidal composition of potato black scurf as claimed in claim 1, it is characterized in that: active ingredient fluazinam and the mass fraction of flutolanil in described bactericidal composition are 1-80%.
5. prevent and treat the bactericidal composition of potato black scurf as claimed in claim 4, it is characterized in that: active ingredient fluazinam and the mass fraction of flutolanil in described bactericidal composition are 2-30%.
6. as described in any one of claim 1-5, prevent and treat the bactericidal composition of potato black scurf, it is characterized in that: the formulation of described bactericidal composition is the one in suspension emulsion, suspending agent, wetting powder, water dispersible granules, granule, microcapsule formulations, microcapsule suspension suspending agent.
7. the bactericidal composition preventing and treating potato black scurf is is as claimed in claim 1 preventing and treating the application in potato black scurf.
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| CN201510441250.3A CN104996429B (en) | 2015-07-25 | 2015-07-25 | A kind of bactericidal composition for preventing and treating black scurf of potato |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106942214A (en) * | 2017-04-12 | 2017-07-14 | 江苏金凤凰农化有限公司 | A kind of composition and application process that black scurf of potato is treated based on guaiacol |
| CN107361080A (en) * | 2017-08-31 | 2017-11-21 | 广西沙田仙人滩农业投资有限公司 | A kind of black scurf of potato bactericide containing tolelofos-methyl |
| CN107988313A (en) * | 2017-11-06 | 2018-05-04 | 宁夏农林科学院植物保护研究所（宁夏植物病虫害防治重点实验室） | A kind of black scurf of potato Resistance Identification method |
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| JPS62403A (en) * | 1985-06-25 | 1987-01-06 | Ishihara Sangyo Kaisha Ltd | Fungicidal composition for agricultural and horticultural use |
| CN102771482A (en) * | 2012-07-23 | 2012-11-14 | 河南金田地农化有限责任公司 | Micro-capsule suspension-suspending agent containing atrazine |
| CN103004825A (en) * | 2011-09-23 | 2013-04-03 | 深圳诺普信农化股份有限公司 | Microcapsule suspension-suspending agent containing diafenthiuron and preparation method thereof |
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Patent Citations (5)
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| US4093743A (en) * | 1976-07-12 | 1978-06-06 | Nihon Nohyaku Co., Ltd. | Novel benzoic anilide derivative and fungicide containing same |
| JPS548722A (en) * | 1977-06-20 | 1979-01-23 | Nippon Nohyaku Co Ltd | Fungicides for agriculture and horticultre |
| JPS62403A (en) * | 1985-06-25 | 1987-01-06 | Ishihara Sangyo Kaisha Ltd | Fungicidal composition for agricultural and horticultural use |
| CN103004825A (en) * | 2011-09-23 | 2013-04-03 | 深圳诺普信农化股份有限公司 | Microcapsule suspension-suspending agent containing diafenthiuron and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106942214A (en) * | 2017-04-12 | 2017-07-14 | 江苏金凤凰农化有限公司 | A kind of composition and application process that black scurf of potato is treated based on guaiacol |
| CN107361080A (en) * | 2017-08-31 | 2017-11-21 | 广西沙田仙人滩农业投资有限公司 | A kind of black scurf of potato bactericide containing tolelofos-methyl |
| CN107988313A (en) * | 2017-11-06 | 2018-05-04 | 宁夏农林科学院植物保护研究所（宁夏植物病虫害防治重点实验室） | A kind of black scurf of potato Resistance Identification method |
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| CN104996429B (en) | 2017-11-07 |
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