CN105076140A - Bactericidal composition containing fluopyram and dimetachlone - Google Patents
Bactericidal composition containing fluopyram and dimetachlone Download PDFInfo
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- CN105076140A CN105076140A CN201510560837.6A CN201510560837A CN105076140A CN 105076140 A CN105076140 A CN 105076140A CN 201510560837 A CN201510560837 A CN 201510560837A CN 105076140 A CN105076140 A CN 105076140A
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- dimethachlon
- bactericidal composition
- acid amides
- fluorine pyrrole
- pyrrole bacterium
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Abstract
The invention discloses a bactericidal composition containing fluopyram and dimetachlone. The bactericidal composition comprises the following active components: fluopyram and dimetachlone, wherein the mass ratio of fluopyram to dimetachlone is (1: 20)-(20: 1); the mass percent content of the active components in the composition is 5-60%. The bactericidal composition provided by the invention is high in bactericidal activity, delays the occurrence and development of drug resistance of pathogens, decreases the dosage for control in actual production, and is economic, efficient, safe and environment-friendly, has a higher control effect on various crop diseases caused by alternaria alternate, and is remarkable in the control effect on alternaria kikuchiana.
Description
Technical field
The present invention relates to disinfectant use in agriculture field, specifically the bactericidal composition of a kind of containing fluopyram and dimethachlon.
Background technology
Pear black spot is one of disease important on pear tree, generally occurs in main pears district of China.European pear, Japanese pear, crisp pears, Chinese pear are the most susceptible, can cause when falling ill serious early leaf fall and tender top drying dead, cause dehiscent fruit and early stage shedding, seriously undermine tree vigo(u)r, reduce growth potential and the resistance against diseases of tree body, reduce growth potential and the resistance against diseases of tree body.Preventing quarantine damage by disease and insect, protect national agricultural safety be by health and phytohygiene reach an agreement on (SPS agreement) be the major measure of external plant product trade protection.From the beginning of the nineties in last century, China just starts to the U.S., Australia, Canada, New Zealand, outlet pears fresh fruit and goods thereof, but during year March October to 2002 calendar year 2001, owing to detecting Pear black spot bacterium, have and export the operatic circle product of the U.S. for 37 times and be rejected, simultaneously the U.S. by China Pear black spot bacterium as quarantine object, higher technology barriers are arranged to China's pears outlet, this measure has a strong impact on China's pears products export, causes serious financial consequences.Therefore, the effective agent of screening control Pear black spot, reduces the incidence of disease of this disease, is the key technology ensureing China's pears safety in production active demand.
Fluorine pyrrole bacterium acid amides is that the efficient protection of a controlling plant diseases and result for the treatment of are originated the medicament of its uniqueness.This medicament has excellent system conductive and stronger thin layer penetration power, all has good inhibitory action to each Main Morphology of pathogen, can provide comprehensive for young leaves, stem, stem tuber, young fruit and protect lastingly.Because medicament can absorb fast through blade face, so resistance of rainwater washing against, for controlling plant diseases in rainy season provides reliable guarantee.
Dimethachlon (Dirnethachlon) is a kind of dicarboximide fungicide, has another name called dimethachlon, and its active ingredient is (N mono-3,5 one dichlorophenyl) succinic acid imines (NDPS).Have direct sterilization, in ooze treatment, anti-androgenic effect, the longevity of residure is long, because its fungicidal spectrum is wide, the features such as control efficiency is remarkable, be widely used in multiple monoid plant pathogenic fungi, the crop caused as Botrytis, Penicillium, Sclerotinia, Alternaria, Helminthosporium, Rhizoctonia, Phoma etc., fruit diseases control.For sclerotinia rot of colza, tobacco red raw meat disease, rice sheath blight disease, gibberella zeaze petch of wheat and barley, powdery mildew and industrial antisepsis, there is good preventive effect effect.
Summary of the invention
The invention provides the bactericidal composition of a kind of containing fluopyram and dimethachlon, there is bactericidal activity high, delay pathogen pesticide resistance emergence and development, and dosage total in unit are is declined, economic, efficient, environmental protection, control Pear black spot has special efficacy.
Two classes are had the bactericide of different mechanism of action by the present invention, namely dicarboximide fungicide dimethachlon and fluorine pyrrole bacterium acid amides 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 economical, efficiently, the goal of the invention of environmental protection.
Technical scheme of the present invention is:
The bactericidal composition of a kind of containing fluopyram and dimethachlon, it is characterized in that, the active component of described bactericidal composition is fluorine pyrrole bacterium acid amides and dimethachlon, and the mass ratio of dimethachlon and fluorine pyrrole bacterium acid amides is 1:20 to 20:1, and in composition, active component mass percentage is 5-60%.
Described containing fluopyram and the bactericidal composition of dimethachlon, is characterized in that: the mass ratio of described active component dimethachlon and fluorine pyrrole bacterium acid amides is 1:10 to 10:1.
Described containing fluopyram and the bactericidal composition of dimethachlon, is characterized in that: the mass ratio of described dimethachlon and fluorine pyrrole bacterium acid amides is 1:3-8.
Described containing fluopyram and the bactericidal composition of dimethachlon, is characterized in that: the mass ratio of described dimethachlon and fluorine pyrrole bacterium acid amides is 1:4-6.
Described containing fluopyram and the bactericidal composition of dimethachlon, is characterized in that: the formulation of described bactericidal composition is suspending agent or missible oil.
The bactericidal composition application of described containing fluopyram and dimethachlon, is characterized in that: this bactericidal composition has higher control efficiency to rod method microbial various crop disease, particularly remarkable to Pear black spot control efficiency.
Remarkable result of the present invention and advantage are:
Pears the present invention has higher control efficiency to pears fungal 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 pears seed output and quality can be improved; In the present invention, fluorine pyrrole bacterium acid amides and dimethachlon 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 fluorine pyrrole bacterium acid amides and dimethachlon 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 Pear black spot bacterium, 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 Pear black spot bacterium.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 dimethachlon and fluorine pyrrole bacterium amide compositions are to the Wadley method measurement result of Pear black spot
Note: F is fluorine pyrrole bacterium acid amides, and J is dimethachlon.
Can analyze from above data, dimethachlon and the fungistatic effect of fluorine pyrrole bacterium amide compositions to Pear black spot bacterium 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 5:1.
Below in conjunction with embodiment, the invention will be further described, but be not limited thereto.
Embodiment
Embodiment 1 (60% dimethachlon fluorine pyrrole bacterium amide suspending agents)
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% dimethachlon fluorine pyrrole bacterium amide suspending agents)
Preparation method: identical with embodiment 1.
Embodiment 3 (preparation method of 40% dimethachlon fluorine pyrrole bacterium amide suspending agents)
Preparation method: identical with embodiment 1.
Embodiment 4 (20% dimethachlon fluorine pyrrole bacterium acid amides missible oil)
Preparation method: fully dissolved in dimethylbenzene reactor by active component dimethachlon, makes A liquid; Active component fluorine pyrrole bacterium acid amides 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% dimethachlon fluorine pyrrole bacterium acid amides missible oil)
Composition of raw materials: by mass percentage
Preparation method: with embodiment 4.
Embodiment 6 (preparation method of 48% dimethachlon fluorine pyrrole bacterium acid amides missible oil)
Composition of raw materials: by mass percentage
Preparation method: with embodiment 4.
Control efficiency is tested:
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 4, bactericidal composition containing fluorine pyrrole bacterium acid amides and dimethachlon 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 fluorine pyrrole bacterium acid amides and dimethachlon, the chlorophyll content in Pears is also significantly higher than other contrast medicament, and single fruit weight also significantly improves (table 2).
The land for growing field crops drug effect * of table 2 pyraclostrobin stalk break bactericidal composition control Pear black spot disease
From the data of table 2, the bactericidal composition containing fluorine pyrrole bacterium acid amides and dimethachlon has good preventive effect to Pear black spot, and the preventive effect of different ratio is different.It should be noted that when the proportioning of fluorine pyrrole bacterium acid amides and dimethachlon 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 fluorine pyrrole bacterium acid amides and dimethachlon 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 containing fluopyram and dimethachlon, it is characterized in that, the active component of described bactericidal composition is fluorine pyrrole bacterium acid amides and dimethachlon, and the mass ratio of fluorine pyrrole bacterium acid amides and dimethachlon is 1:20 to 20:1, and in composition, active component mass percentage is 5-60%.
2. the bactericidal composition of containing fluopyram according to claim 1 and dimethachlon, is characterized in that: described active component fluorine pyrrole bacterium acid amides and the mass ratio of dimethachlon are 1:10 to 10:1.
3. the bactericidal composition of containing fluopyram according to claim 1 and dimethachlon, is characterized in that: the mass ratio of described dimethachlon and fluorine pyrrole bacterium acid amides is 1:3-8.
4. the bactericidal composition of containing fluopyram according to claim 1 and dimethachlon, is characterized in that: the mass ratio of described dimethachlon and fluorine pyrrole bacterium acid amides is 1:4-6.
5. the bactericidal composition of containing fluopyram according to claim 1 and 2 and dimethachlon, is characterized in that: the formulation of described bactericidal composition is suspending agent or missible oil.
6. the bactericidal composition application of containing fluopyram according to claim 1 and 2 and dimethachlon, is characterized in that: described bactericidal composition has good control efficiency to the microbial multiple diseases of rod method.
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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 |
|---|---|---|---|---|
| CN1917762A (en) * | 2004-02-12 | 2007-02-21 | 拜尔农科股份有限公司 | Fungicidal composition comprising a pyridylethylbenzamide derivative and a compound capable of inhibiting the spores germination or mycelium growth by acting on different metabolic routes |
| CN101647439A (en) * | 2009-07-31 | 2010-02-17 | 深圳诺普信农化股份有限公司 | Mixed sterilization combination containing boscalid |
| CN101946793A (en) * | 2010-10-22 | 2011-01-19 | 青岛海利尔药业有限公司 | Bactericidal composition containing fluopyram and iprodione |
-
2015
- 2015-09-06 CN CN201510560837.6A patent/CN105076140A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917762A (en) * | 2004-02-12 | 2007-02-21 | 拜尔农科股份有限公司 | Fungicidal composition comprising a pyridylethylbenzamide derivative and a compound capable of inhibiting the spores germination or mycelium growth by acting on different metabolic routes |
| CN101647439A (en) * | 2009-07-31 | 2010-02-17 | 深圳诺普信农化股份有限公司 | Mixed sterilization combination containing boscalid |
| CN101946793A (en) * | 2010-10-22 | 2011-01-19 | 青岛海利尔药业有限公司 | Bactericidal composition containing fluopyram and iprodione |
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: 20151125 |
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