CN103518725A - Bactericide taking boscalid as effective component and for rice field, wheat field and corn field - Google Patents
Bactericide taking boscalid as effective component and for rice field, wheat field and corn field Download PDFInfo
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- CN103518725A CN103518725A CN201310476085.6A CN201310476085A CN103518725A CN 103518725 A CN103518725 A CN 103518725A CN 201310476085 A CN201310476085 A CN 201310476085A CN 103518725 A CN103518725 A CN 103518725A
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Abstract
The invention provides a bactericide taking boscalid as an effective component and for rice field, wheat field and corn field. The bactericide employs boscalid as the effective component, and proper auxiliary agents and carriers are added. The bactericide can be prepared into various forms such as water-dispersion granules, suspending agents, microcapsule suspending agents, dispersible-oil suspending agents, oil suspending agents, wettable powder, film-spreading oil agents, emulsion in water, micron emulsion, granules, effervescent tablets and the like. The bactericide used for rice field, wheat field and corn field has good control effect on main fungous diseases of rice, wheat and corn, does not cause drug resistance, is obvious in yield increase effect, is safe to rice, wheat and corn, is low in toxicity and residues, and is suitable for popularization and application in agriculture production.
Description
Technical field
The present invention relates to pesticide field, particularly contain the disinfectant use in agriculture of Boscalid, be mainly used in paddy field, wheat paddock and corn field control fungal diseases of plants.
Background technology
Corn, paddy rice and wheat are the main cereal crops of China, and cultivated area surpasses 1,300,000,000 mu throughout the year, accounts for 80% of national plant of grain crops area.Corn, paddy rice and wheat are in whole growth and development process, be faced with causing harm of various fungal diseases, the fungal diseases of three large crops is of a great variety, complicated symptoms, propagation rapidly, endanger serious and compound generation, cause difficulty of prevention and cure to strengthen, crop yield and quality are constituted a serious threat.At present conventional bactericide kind development of drug resistance is very fast, causes dosage constantly to rise, and all brings adverse effect to crop, environment; In addition the residue problem of part bactericide kind also affects food and grain security.Given this present situation, need to find efficient a, low toxicity, low-residual, has the bactericide kind of the different mechanisms of action for the comparatively cost-effective means that provide are provided.
Active ingredient Boscalid is a kind of succinate dehydrogenase inhibitors (SDHI), it works by suppressing succinic acid ubiquinone reductase (also referred to as Complex II) on mitochondria electron transport chain, and its mechanism of action and other amide-types and benzamide series bactericidal agent are similar.Boscalid is blade face applying bactericidal agent, can, in the vertical infiltration of leaves of plants portion with to top transmission, have excellent prevention effect, and have certain result for the treatment of.It can suppress spore germination, germ tube elongation, hapteron formation, also effective in the every other vegetative period of fungi, presents remarkable resistance of rainwater washing against and lasting effect.Boscalid belongs to succinic acid ubiquinone reductase inhibitor in mitochondrial respiratory chain, and the sprouting of spore is had to very strong inhibition ability.When low concentration, Boscalid can hinder mycelial growth and sporulation, therefore have therapeutic action; In addition, because it can suppress spore-germination, germ tube extends and hapteron forms, therefore have again outstanding prevention effect.Boscalid is widely used on the crops such as fruit tree, vegetables, melon and fruit, but also on paddy rice, wheat and maize, does not prevent and treat the relevant information of fungal disease.
Summary of the invention
1. the object of this invention is to provide a kind of agriculture chemicals fungicide that can effectively prevent and treat paddy field, wheat paddock and corn field Major Fungus Diseases.
2. the present invention is by being made into Boscalid agricultural chemicals single dose, and take paddy field, wheat paddock and corn field Major Fungus Diseases is controlling object, as a kind of disinfectant use in agriculture for paddy field, wheat paddock and corn field controlling plant diseases.
3. the active ingredient the present invention relates to is Boscalid ISO common name: boscalid molecular formula: C
18h
12cl
2n
2o molecular weight: 343.2
The chloro-N-of chemical name: 2-(4 '-chlorodiphenyl-2-yl) vitamin PP
Chemical structural formula
4. the agriculture chemicals fungicide in the present invention is comprised of active ingredient Boscalid; The weight percentage of described active ingredient is: 1%-90%.Add after suitable auxiliary agent and carrier, make suspending agent, water dispersible granules, microcapsule suspending agent, dispersible the various formulations such as oil-suspending agent, oil suspending agent, wetting powder, film-spreading oil solution, aqueous emulsion, microemulsion, granule, effervescent tablet, for paddy field, wheat paddock and corn field control fungal disease.
5. advantage of the present invention is:
Whole new set of applications, is applied to Boscalid to prevent and treat the fungal disease of paddy rice, wheat and maize first;
Boscalid has the brand-new mechanism of action, and pathogen does not have pesticide resistance to produce;
Boscalid has good preventive effect to the Major Fungus Diseases of three large crops, and to crop safety, production-increasing function is obvious;
boscalid degraded in making object and in environment is rapid, and low toxicity, low-residual guarantee grain and food security.
In order to understand better invention essence, with example, describe technology contents of the present invention in detail below, but application of the present invention is not limited to this.
embodiment 1the preparation of 50% Boscalid water dispersible granules
Boscalid 50%
Dispersant--sodium lignin sulfonate 5%
Wetting agent--lauryl sodium sulfate 3%
Disintegrant 8%
Binding agent 1%
Kaolin complements to 100%
According to above-mentioned formula requirement, by together with the former medicine of Boscalid, dispersant, wetting agent, disintegrant and filler etc. after air-flow crushing, add again the auxiliary agents such as binding agent, obtain semi-finished product, quantitatively send semi-finished product to fluidized bed prilling, be then dried, sieve and make 50% Boscalid water dispersible granules.
embodiment 2the preparation of 30% Boscalid suspending agent
Boscalid 30%
Dispersant NNO 3%
Agriculture breast OX-656 1.5%;
Agriculture breast 0201B 1.0%;
Agriculture breast 1,601 1.0%;
Nongru-700 # 0.5%;
Ethylene glycol 5.0%;
Defoamer 0.2%
Water complements to 100%
According to above-mentioned formula requirement, the former medicine of Boscalid, dispersant, emulsifier are dropped in mixing kettle and mixed through high speed shear, then add defoamer, antifreeze etc., porphyrize in sand milling still, make diameter of particle below 5 millimeters, make 30% Boscalid suspending agent.
experimental example 150% Boscalid water dispersible granules is prevented and treated rice sheath blight disease test
4 processing are established in test, and each is processed 4 times and repeats, ，Ge community, Gong16Ge community randomized arrangement.
Process 30 grams/acre of 1 50% Boscalid water dispersible granules;
Process 40 grams/acre of 2 50% Boscalid water dispersible granules;
Process 50 grams/acre of 3 50% Boscalid water dispersible granules;
Process 4 blanks
Within 7 days, 14 days after medicine, investigate the sick leaf rate of all communities, by following method, investigate: according to rice leaf sheath and damage symptom grading, Yi Zhuwei unit, 5 samplings of every community diagonal, every some investigation is connected 5 clumps, every clump of 2 strains, every 10 strains, totally 25 clumps, record total strain number, diseased plant number and sick progression.
The stage division of rice sheath blight disease (take blade as unit):
0 grade: do not fall ill;
1 grade: quaterfoil and following leaf sheath thereof, blade morbidity (take sword-like leave as the first blade);
3 grades: the 3rd blade and following leaf sheath thereof, blade morbidity;
5 grades: the second blade and following leaf sheath thereof, blade morbidity;
7 grades: sword-like leave blade and following leaf sheath thereof, blade morbidity;
9 grades: the morbidity of paddy rice complete stool, withered in advance.
Field investigation the data obtained calculates according to following formula:
Diseased plant rate=diseased plant is counted ÷ and investigates total strain number
Disease index=∑ (diseased plant number * relative level numerical value at different levels) * 100/ investigation total strain number * 9
Control efficiency (%)=(check plot disease index-treatment region disease index) * 100/ check plot disease index
The control efficiency of table 1 Boscalid different amounts to rice sheath blight disease
By table 1 result of the test, can be found out, after dispenser 7 days, Boscalid was to the preventive effect of rice sheath blight disease all over 80%, and along with consumption increases, preventive effect is better; After medicine 14 days, the preventive effect that different amounts is processed all increased; Test each treatment region and all do not occur the bad reaction phenomenons such as poisoning.
experimental example 230% Boscalid suspending agent control wheat powdery mildew
4 processing are established in test, and each is processed 4 times and repeats, ，Ge community, Gong16Ge community randomized arrangement.
Process 50 milliliters/mu of 1 30% Boscalid suspending agents;
Process 60 milliliters/mu of 2 30% Boscalid suspending agents;
Process 70 milliliters/mu of 3 30% Boscalid suspending agents;
Process 4 blanks
Within before dispenser and after dispenser 7 days, 14 days, investigate the sick leaf rate of all communities, by following method, investigate: 5 samplings of every community diagonal, every some investigation 20 strains, wheat 1～5 leaf of shooting stage investigation base portion of standing up, first leaf under the boot leaf of the every strain of heading " Invest, Then Investigate " and boot leaf, calculates disease by leaf classification investigation occurring degree and refers to and control efficiency.
The stage division of wheat powdery mildew (take blade as unit):
0 grade: anosis;
1 grade: lesion area accounts for below 5% of one-piece blade area;
3 grades: lesion area accounts for the 6%-15% of one-piece blade area;
5 grades: lesion area accounts for the 16%-25% of one-piece blade area;
7 grades: lesion area accounts for the 26%-50% of one-piece blade area;
9 grades: lesion area accounts for the more than 50% of one-piece blade area.
Field investigation the data obtained calculates according to following formula:
Disease index=∑ (the sick number of sheets * relative level numerical value at different levels) * 100/ investigation total strain number * 9
Control efficiency (%)=(1-CK0 * PT1/ CK1*PT0) * 100
In formula, CK0, CK1 are respectively the forward and backward disease index of blank district dispenser;
PT1, PT0 are respectively the forward and backward disease index of chemicals treatment district dispenser;
The control efficiency of table 2 Boscalid different amounts to wheat powdery mildew
(in table, sick index is according to being four repetition means)
By table 2 result of the test, can be found out, after dispenser 8 days for the first time, Boscalid had good preventive effect to wheat powdery mildew, and along with consumption increases, preventive effect is better; After dispenser 14 days for the second time, the preventive effect that different amounts is processed all obviously improved; All there is not the bad reaction phenomenons such as poisoning in each processing of test.
experimental example 330% Boscalid suspending agent control of maize leaf blight
4 processing are established in test, and each is processed 4 times and repeats, ，Ge community, Gong16Ge community randomized arrangement.
Process 50 milliliters/mu of 1 30% Boscalid suspending agents;
Process 60 milliliters/mu of 2 30% Boscalid suspending agents;
Process 70 milliliters/mu of 3 30% Boscalid suspending agents;
Process 4 blanks
Before dispenser and after dispenser for the first time, behind 14 days, dispenser for the second time, within 14 days, investigate the sick leaf rate of all communities, by following method, investigate: 5 samplings of every community diagonal, get 5 strains at every and investigate whole blades, by leaf classification investigation occurring degree, calculate disease and refer to and control efficiency.
The stage division of the corn northern leaf blight (take blade as unit):
0 grade: anosis;
1 grade: lesion area accounts for below 5% of blade area;
3 grades: lesion area accounts for the 6%-10% of blade area;
5 grades: lesion area accounts for the 11%-25% of blade area;
7 grades: lesion area accounts for the 26%-50% of blade area;
9 grades: lesion area accounts for the more than 51% of blade area.
Field investigation the data obtained calculates according to following formula:
Disease index=∑ (the sick number of sheets * relative level numerical value at different levels) * 100/ investigation total strain number * 9
Control efficiency (%)=(1-CK0 * PT1/ CK1*PT0) * 100
In formula, CK0, CK1 are respectively the forward and backward disease index of blank district dispenser;
PT1, PT0 are respectively the forward and backward disease index of chemicals treatment district dispenser;
The control efficiency of table 3 Boscalid different amounts to the corn northern leaf blight
(in table, sick index is according to being four repetition means)
By table 3 result of the test, can be found out, Boscalid has good control efficiency to the corn northern leaf blight, along with
Consumption increases, and preventive effect obviously improves; All there is not the bad reaction phenomenons such as poisoning in each processing of test.
Claims (4)
1. the paddy field that the Boscalid of take is active ingredient, wheat paddock and corn field bactericide, is characterized in that: take Boscalid as active ingredient composition, for paddy field, wheat paddock and corn field control Major Fungus Diseases.
2. according to claim 1ly take paddy field, wheat paddock and the corn field bactericide that Boscalid is active ingredient, it is characterized in that: the weight percentage of described active ingredient is: 1%-90%.
3. according to paddy field, wheat paddock and the corn field bactericide that Boscalid is active ingredient of take described in claim 1-2, it is characterized in that: described bactericide can be prepared into the regular dosage form of agricultural chemicals, comprise water dispersible granules, suspending agent, microcapsule suspending agent, dispersible oil-suspending agent, oil suspending agent, wetting powder, film-spreading oil solution, aqueous emulsion, microemulsion, granule, effervescent tablet.
4. according to paddy field, wheat paddock and the corn field bactericide that Boscalid is active ingredient of take described in claim 1-3, it is characterized in that: described bactericide is in the plant disease of preventing and treating in agricultural the especially application in preventing and treating rice sheath blight disease, rice blast, false smut, wheat powdery mildew, wheat sharp eyespot, wheat scab, the corn northern leaf blight, corn southern leaf blight, corn rust.
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| CN201310476085.6A CN103518725A (en) | 2013-10-14 | 2013-10-14 | Bactericide taking boscalid as effective component and for rice field, wheat field and corn field |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104920366A (en) * | 2015-05-14 | 2015-09-23 | 京博农化科技股份有限公司 | Processing method of boscalid preparation |
| CN109221146A (en) * | 2017-07-10 | 2019-01-18 | 江苏龙灯化学有限公司 | Purposes of the fluorine indenes azoles bacterium amine in reducing or preventing corn by big spot Exserohilum bacterium and infecting |
| CN111202072A (en) * | 2020-02-25 | 2020-05-29 | 贵州省烟草科学研究院 | Boscalid emulsion and preparation method thereof |
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| CN102428931A (en) * | 2011-12-23 | 2012-05-02 | 江阴苏利化学有限公司 | Bacteriocidal composition containing Boscalid and triazole bactericide |
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| CN101969776A (en) * | 2007-11-29 | 2011-02-09 | 拜尔农作物科学股份公司 | Method for reducing mycotoxin contamination in maize |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104920366A (en) * | 2015-05-14 | 2015-09-23 | 京博农化科技股份有限公司 | Processing method of boscalid preparation |
| CN109221146A (en) * | 2017-07-10 | 2019-01-18 | 江苏龙灯化学有限公司 | Purposes of the fluorine indenes azoles bacterium amine in reducing or preventing corn by big spot Exserohilum bacterium and infecting |
| CN109221146B (en) * | 2017-07-10 | 2021-04-06 | 江苏龙灯化学有限公司 | Use of triflumizole amine for reducing or preventing corn infection by helminthosporium macrostoma |
| CN111202072A (en) * | 2020-02-25 | 2020-05-29 | 贵州省烟草科学研究院 | Boscalid emulsion and preparation method thereof |
| CN111202072B (en) * | 2020-02-25 | 2022-04-19 | 贵州省烟草科学研究院 | Boscalid emulsion and preparation method thereof |
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Application publication date: 20140122 |