CN105360152A - Bactericidal composition containing pyraclostrobin and hydantoin - Google Patents
Bactericidal composition containing pyraclostrobin and hydantoin Download PDFInfo
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- CN105360152A CN105360152A CN201510889265.6A CN201510889265A CN105360152A CN 105360152 A CN105360152 A CN 105360152A CN 201510889265 A CN201510889265 A CN 201510889265A CN 105360152 A CN105360152 A CN 105360152A
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- pyraclostrobin
- iprodione
- bactericidal composition
- composition
- bactericidal
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Abstract
The invention discloses a bactericidal composition containing pyraclostrobin and hydantoin. The bactericidal composition comprises active components of pyraclostrobin and hydantoin in the weight ratio of 1:20-20:1, and the active components account for 5-60 wt.% of the composition. The bactericidal composition provided by the invention has high bactericidal activity, delays the emergence and development of pathogen resistance, reduces the dosage of prevention in actual production, and has the advantages of economical performance, high efficiency, safety and environment-friendliness. The bactericidal composition has especially substantial control effect on grape gray mold and Alternaria kikuchiana Tanaka.
Description
Technical field
The present invention relates to disinfectant use in agriculture field, specifically the bactericidal composition of a kind of pyraclostrobin-containing and iprodione and application thereof.
Background technology
Gray mold is the common and a kind of fungal disease of more difficult control of open country, protecting field crop, and belong to low temperature and high relative humidity type disease, growth of pathogenic bacteria temperature is 20 ~ 30 DEG C, is the disease high-incidence season when temperature 20 ~ 25 DEG C, humidity continue more than 90%.Gray mold, caused by the pathogen of Botrytis cinerea infects, belongs to fungal disease, and flower, really, leaf, stem all can fall ill.The sick seedling look of gray mold is shallow, and the morbidity of blade, petiole is in canescence, and water stain shape, organization softening is to rotting, and during high humidity, there is grey mold on surface.Children's stem is many to come into being irregular water logging spot at petiole base, and very fast deliquescing is rotted, and hang contracting or folding fall, and last sick scutellum rot is withered dies of illness.This disease is a kind of typical aeroborne disease, can propagate with air, current and farming operation.In actual disease control process, be difficult to adopt an effective measure and thoroughly cut off source of infection; When pathogen invades, be also difficult to utterly destroy pathogen, as medicament sprays, be difficult to solve the pathogen in air and dew; And smoke separately canopy, can not solve on the invalid body such as disease leaf, sick fruit or the pathogen of inside by emphasis.
Pyraclostrobin is a kind of methoxy acrylic New-type wide-spectrum bactericide, has protection, treatment, blade infiltration conduction.The mechanism of action is mitochondrial respiratory inhibitor, namely by stoping electro transfer in cytochrome synthesis.Pyraclostrobin missible oil, through field control effectiveness test result, shows there is good control efficiency to powdery mildew of cucumber, downy mildew and banana freckle, leaf spot, stalk break etc.
Chemical name: N-[2-[[1-(4-chlorphenyl) pyrazole-3-yl] oxygen methyl] phenyl]-N-methoxy carbamate methyl esters
Structural formula is as follows:
Iprodione (Rovral) is dicarboximide class high-efficiency broad spectrum, the contact killing type bactericide of Ainwunt Crop Scientifique (AventisCo., Ltd.) Development and Production.Be applicable to prevent and treat the diseases such as crop early defoliation disease, gray mold, early blight such as multiple fruit tree, vegetables, melon and fruit class.Iprodione can be prevented and treated has drug-fast bacterial classification to benzimidazole systemic fungicide (as carbendazim, probenazole), also can prevent and treat some usual unmanageable bacterial classifications.Sterling is white crystals.Common commodity pulvis is buff powder, and suspending agent is cream-colored starchiness thing.High-efficiency low-toxicity, environmentally safe, to person poultry safety, nontoxic to honeybee, be particluarly suitable for vegetable crop is applied.
Summary of the invention
The invention provides the bactericidal composition of a kind of pyraclostrobin-containing and iprodione, there is bactericidal activity high, delay pathogen pesticide resistance emergence and development, and dosage total in unit are is declined, economic, efficient, environmental protection, have special efficacy preventing and treating in gray mold.
The bactericide that two classes are had different mechanism of action by the present invention is combined, and be processed into the upper easy-to-use preparation of production, be used alone in two kinds of compositions and compare, there is biologically active high, dosage total in unit are declines, greatly reduce dispenser cost, delaying pathogen pesticide resistance emergence and development to a greater extent simultaneously, reduce disease fungus produces resistance risk to single bactericide, extend the service life of each component in bactericidal composition, thus realize goal of the invention that is economic, efficient, environmental protection.
Technical scheme of the present invention is:
The bactericidal composition of a kind of pyraclostrobin-containing and iprodione, it is characterized in that, the active component of described bactericidal composition is pyraclostrobin and iprodione, and the mass ratio of pyraclostrobin and iprodione is 1:20 to 20:1, and in composition, active component mass percentage is 5-60%.
Described pyraclostrobin-containing and the bactericidal composition of iprodione, is characterized in that: described active component pyraclostrobin and the mass ratio of iprodione are 1:10 to 10:1.
Described pyraclostrobin-containing and the bactericidal composition of iprodione, is characterized in that: described pyraclostrobin and the mass ratio of iprodione are 1:3-8.
Described pyraclostrobin-containing and the bactericidal composition of iprodione, is characterized in that: described pyraclostrobin and the mass ratio of iprodione are 1:4-6.
Described pyraclostrobin-containing and the bactericidal composition of iprodione, is characterized in that: the formulation of described microbicide compositions is suspending agent or missible oil.
Described pyraclostrobin-containing and the bactericidal composition of iprodione are applied on control grape grey mould and Pear black spot.
Remarkable result of the present invention and advantage are:
The present invention has higher control efficiency to grey mold disease, there is notable synergistic effect between two components; Part high price pesticide species can be replaced, and reduce dosage, effectively reduce ecological disruption and environmental pollution, and the fruit yield and quality such as grape, peach can be improved; In the present invention, pyraclostrobin and iprodione all belong to the toxicity such as low, and to people and animals, beneficial organism, Environmental security; The pesticide resistance of germ to single medicament can be delayed.
First the EC of pyraclostrobin and iprodione two single compound (hereinafter referred to as medicament) is measured
50(drug safety index), according to the EC of two single medicaments
50set the portfolio ratio of two medicaments by Wadley method, and according to Wadley coefficient of synergism C value, determine suitable composition ratio, then verified by the abundant method of Sun Yun.
Test objective thing is ash arrhizus bacteria, but does not limit so.Test adopts mycelial growth determination method, makes pastille medium by different disposal, and each process 4 repetitions, connect bacterium after 3 days, investigate the growth inhibitory effect of each process to ash arrhizus bacteria.By the linear regression analysis between the probit value of preventive effect and the logarithm value of serial drug concentration, obtain the EC50 of each medicament, calculate coefficient of synergism (SR) according to Wadley method, and make overall merit accordingly.SR≤0.5 represents to have antagonism, and 0.5 < SR < 1.5 represents to have summation action, and SR >=1.5 are synergistic effect.SR value calculating method is as follows:
EC
50(theoretical value)=(a+b)/(a/EC
50A+ b/EC
50B)
SR=EC
50(theoretical value)/EC
50(real value)
SR≤0.5, then two kinds of medicament mixtures have antagonistic action
SR=0.5 ~ 1.5, then two kinds of medicament mixtures have addition
SR >=1.5, then two kinds of medicament mixtures have synergistic effect
Table 1 pyraclostrobin and iprodione composition are to the Wadley method measurement result of gray mold
Note: P is iprodione, and B is pyraclostrobin.
Can analyze from above data, pyraclostrobin and the fungistatic effect of iprodione composition to ash arrhizus bacteria of different proportion are different, on the whole, its ratio has synergy or addition in the scope of 1:20 to 20:1, and wherein maximum enhancing proportions is the proportioning of pyraclostrobin and iprodione is 5:1.
Below in conjunction with embodiment, the invention will be further described, but be not limited thereto.
Embodiment
Embodiment 1 (60% pyraclostrobin iprodione suspending agent)
Composition of raw materials: by mass percentage
Preparation method is as follows:
According to formula, individual component is weighed in proportion, add ball mill ball milling 30 minutes, filter, suction dispersion tank high speed shear was fully ground through sand mill after 3 minutes, controlled solid constituent particle diameter within 2 microns, stir after grinding terminates, obtain suspending agent product.
Embodiment 2 (preparation method of 30% pyraclostrobin iprodione suspending agent)
Preparation method: identical with embodiment 1.
Embodiment 3 (preparation method of 40% pyraclostrobin iprodione suspending agent)
Preparation method: identical with embodiment 1.
Embodiment 4 (20% pyraclostrobin iprodione missible oil)
Preparation method: fully dissolved in dimethylbenzene reactor by active component pyraclostrobin, makes A liquid; Active component iprodione is fully dissolved in DMF reactor, makes B liquid; Not stopping, under stirring, A liquid is mixed into B liquid, stirring, adding anhydrous calcium salt and NP-10, then adjusting content with solvent xylene.
Embodiment 5 (45% pyraclostrobin iprodione missible oil)
Composition of raw materials: by mass percentage
Preparation method: with embodiment 4.
Embodiment 6 (preparation method of 48% pyraclostrobin iprodione missible oil)
Composition of raw materials: by mass percentage
Preparation method: with embodiment 4.
Control efficiency is tested:
The field efficiency test of grape grey mould carries out in vineyard, Wuwei County, and test area is 0.3hm
2, often process in triplicate, carry out the control of spray medicine at initial bloom stage, carry out preventive effect investigation in dispenser after 20 days, after medication, measure chlorophyll content, before results, investigated the effect of controlling disease, and determine output.Control the results are shown in Table 2.Result shows, bactericidal composition containing pyraclostrobin and iprodione has good control efficiency to gray mold, can reach higher control efficiency under same dose or lower using dosage, and each process preventive effect bacterium of this bactericidal composition is greater than 85%, is significantly higher than contrast medicament.After bactericidal composition (embodiment 1 to the embodiment 6) process of pyraclostrobin and iprodione, the chlorophyll content in grape leave is also significantly higher than other contrast medicament, and per mu yield also significantly improves (table 2).
Table 2 pyraclostrobin iprodione bactericidal composition prevents and treats the land for growing field crops drug effect * of gray mold
The field efficiency test of Pear black spot carries out in Dangshan County theatre, and at the full-bloom stage of pears to fruit expanding period dispenser 4 times, often process sprays 3 pear trees, repeats 3 times, randomised block design.Carried out preventive effect investigation August 15, and determine output, Simultaneously test chlorophyll content.Result is as shown in table 3, bactericidal composition containing pyraclostrobin and iprodione has good control efficiency to Pear black spot, can reach higher control efficiency under same dose or lower using dosage, and each process preventive effect bacterium of this bactericidal composition is greater than 85%, is significantly higher than contrast medicament.After bactericidal composition (embodiment 1 to the embodiment 6) process of pyraclostrobin and dimethachlon, the chlorophyll content in Pears is also significantly higher than other contrast medicament, and single fruit weight also significantly improves (table 3).
The land for growing field crops drug effect * of table 3 pyraclostrobin iprodione bactericidal composition control Pear black spot disease
From the data of table 2 and table 3, the bactericidal composition containing pyraclostrobin and iprodione has good preventive effect to grape grey mould and Pear black spot, and the preventive effect of different ratio is different.It should be noted that when the proportioning of pyraclostrobin and iprodione is 5:1, compared with other processes, under lower consumption, but to two kinds of diseases, there is higher preventive effect, show good synergistic function; And indoor biometrics result also shows, when the proportioning of pyraclostrobin and iprodione is 5:1, the coefficient of synergism measured is the highest, and the result of the two is consistent.
Finally, it is also to be noted that what enumerate above is only several specific embodiments of the present invention.Obviously, the invention is not restricted to above embodiment, a lot of distortion can also be had.All distortion that those of ordinary skill in the art can directly derive from content disclosed by the invention or associate, all think the scope of protection of the invention.
Claims (6)
1. the bactericidal composition of a pyraclostrobin-containing and iprodione, it is characterized in that, the active component of described bactericidal composition is pyraclostrobin and iprodione, and the mass ratio of pyraclostrobin and iprodione is 1:20 to 20:1, and in composition, active component mass percentage is 5-60%.
2. the bactericidal composition of pyraclostrobin-containing according to claim 1 and iprodione, is characterized in that: described active component pyraclostrobin and the mass ratio of iprodione are 1:10 to 10:1.
3. the bactericidal composition of pyraclostrobin-containing according to claim 1 and iprodione, is characterized in that: described pyraclostrobin and the mass ratio of iprodione are 1:3-8.
4. the bactericidal composition of pyraclostrobin-containing according to claim 1 and iprodione, is characterized in that: described pyraclostrobin and the mass ratio of iprodione are 1:4-6.
5. the bactericidal composition of pyraclostrobin-containing according to claim 1 and 2 and iprodione, is characterized in that: the formulation of described bactericidal composition is suspending agent or missible oil.
6. the bactericidal composition of pyraclostrobin-containing according to claim 1 and 2 and iprodione is applied on control grape grey mould and Pear black spot.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105475313A (en) * | 2015-12-02 | 2016-04-13 | 安徽省农业科学院植物保护与农产品质量安全研究所 | Bactericidal composition containing pyraclostrobin and dimethachlon |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102308831A (en) * | 2011-03-17 | 2012-01-11 | 陕西汤普森生物科技有限公司 | Bactericide composition containing pyraclostrobin and dihydroxy imide |
| CN102396484A (en) * | 2011-12-03 | 2012-04-04 | 陕西美邦农药有限公司 | Bactericidal combination containing iprodione and methoxyacrylic acid ester |
| CN103004823A (en) * | 2013-01-21 | 2013-04-03 | 山东滨农科技有限公司 | Bactericide composition containing pyraclostrobin and bromothalonil |
-
2015
- 2015-12-02 CN CN201510889265.6A patent/CN105360152A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102308831A (en) * | 2011-03-17 | 2012-01-11 | 陕西汤普森生物科技有限公司 | Bactericide composition containing pyraclostrobin and dihydroxy imide |
| CN102396484A (en) * | 2011-12-03 | 2012-04-04 | 陕西美邦农药有限公司 | Bactericidal combination containing iprodione and methoxyacrylic acid ester |
| CN103004823A (en) * | 2013-01-21 | 2013-04-03 | 山东滨农科技有限公司 | Bactericide composition containing pyraclostrobin and bromothalonil |
Non-Patent Citations (2)
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| 王泽: "百泰防治梨黑斑病效果好", 《农药市场信息》 * |
| 马立功等: "梨黑斑病药剂防治试验", 《中国果树》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105475313A (en) * | 2015-12-02 | 2016-04-13 | 安徽省农业科学院植物保护与农产品质量安全研究所 | Bactericidal composition containing pyraclostrobin and dimethachlon |
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Application publication date: 20160302 |
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