CN108782566A - A kind of bactericidal composition of second containing pheno mycin and Osthole - Google Patents
A kind of bactericidal composition of second containing pheno mycin and Osthole Download PDFInfo
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- CN108782566A CN108782566A CN201811000539.1A CN201811000539A CN108782566A CN 108782566 A CN108782566 A CN 108782566A CN 201811000539 A CN201811000539 A CN 201811000539A CN 108782566 A CN108782566 A CN 108782566A
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- Prior art keywords
- osthole
- mycin
- pheno
- bactericidal composition
- agent
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
- A01N43/16—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero atom
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/60—1,4-Diazines; Hydrogenated 1,4-diazines
Abstract
The invention belongs to technical field of pesticide, it particularly relates to be a kind of mycin of second containing pheno and Osthole bactericidal composition and the bactericidal composition be used to prepare prevention corps diseases drug application；The weight ratio of pheno second mycin and Osthole is 1 in the bactericidal composition of the present invention:10~20:1, it is simple superposition that active constituent interacts not within the scope of aforementioned proportion in the bactericidal composition of the present invention, but there is certain synergistic function between each other, bactericidal composition of the invention is particularly suitable for prevention rice green smut and uncinula necator and harmless to crop safety.
Description
Technical field
The invention belongs to technical field of pesticide, are related to a kind of bactericidal composition of second containing pheno mycin and Osthole, also relate to
And the bactericidal composition of a kind of mycin of second containing pheno and Osthole is used to prevent the purposes of corps diseases.
Background technology
False smut also known as pseudo- smut, green smut, paddy blossom disease and green powder disease, are commonly called as " high yield fruit ".The disease only occurs in
Fringe portion, part grain of causing harm.Mycelia block is formed in the performance symptom grain of aggrieved rice green smut gradually to expand, it is interior it is coetonium split,
Expose faint yellow block, i.e. spore seat, after be wrapped in interior coetonium both sides, be in blackish green, first outsourcing thin film is rear to rupture, and dissipates
Raw blackish green powder, the i.e. chlamydospore of germ, some both sides give birth to the flat sclerotium of black, expose to wind and rain easy to fall off.In China river
North, the Yangtze river basin and southern each province rice region happen occasionally.With the introduction of new varieties, the development of hybrid paddy rice and Fertilization Level carry
Height, this disease have the gesture of rising year by year, and greater loss is caused in many places.
Uncinula necator (Uncinula necator) originates from North America, is dispersed throughout each viny region in the world.The disease is main
The positions such as the blade, branch and fruit of grape are endangered, aggrieved most heavy with tender tissue, uncinula necator occurs seriously
Area causes vintage to reduce, quality decline, and the pesticidal preparations for preventing uncinula necator currently on the market are dazzling, in addition
The blindness of orchard worker selects medicament, leads to uncinula necator resistance getting worse.
Pheno second mycin, chemical name are：N, N- diethyl azophenlyene -1- formamides, are that rape pseudomonad is trained through everfermentation
Foster biologically active fungicide, CN201310309701.9 disclose pheno second mycin to damping off of colza bacterium, cucumber cream
Mildew and Powdery Mildew, Cochliobolus sativus, rice sheath blight disease germ, bean anthrax bacteria, Fulvia fulva, wheat total eclipse
The various vegetables such as germ, Alternaria brassicae, tobacco black shank bacterium, botrytis cinerea and asparagus stem wilt bacteria and cereal crops
Disease fungus all has a strong inhibitory effect, and can be colonized in various crop rhizosphere, it is shown that in biological control
The potentiality of application.
Osthole is the extract of Cnidium Monnieri, can be used for sterilizing, desinsection, and noresidue, therefore extensively made
Medicament to sterilize, sterilizing uses；Its mechanism of action, which is the growth of influence fungal cell wall, causes mycelia to be largely broken, and presses down simultaneously
The growth of germ mycelia processed.Osthole have the advantages that people and raise it is safe, free from environmental pollution and be not easy to cause drug resistance,
But the disadvantage is that easily decomposing in the natural environment, therefore, Osthole is compounded with other pesticide activity components generally or mixture makes
With.Osthole has preferable preventive effect to rice green smut, cucumber downy mildew and uncinula necator.
Pheno second mycin belongs to biological species pesticide with Osthole, and the mechanism of action of the two is different, by the two mixture
Or compounding, discovery can effectively prevent multiple kinds of crops disease, the pathogen that some are generated with serious resistance all has certain suppression
It makes and uses, and to safety of human and livestock, it is environmentally safe.
Invention content
That the purpose of the present invention is to provide a kind of synergistic effects is apparent, dosage is low, safety is good, is suitble to agriculturally produce
The bactericidal composition of a kind of second containing the pheno mycin and Osthole that use.
It is a further object of the present invention to provide the bactericidal compositions of the mycin of second containing pheno and Osthole to be applied to prevention farming
The purposes of object disease, in particular for preventing the purposes of rice green smut and uncinula necator.
To achieve the above object, the technical solution adopted in the present invention is：
The weight ratio of a kind of bactericidal composition of second containing pheno mycin and Osthole, pheno second mycin and Osthole is 1:10
~20:1.
Further, the weight ratio of the pheno second mycin and Osthole is 1:5~10:1.
Further, the weight ratio of the pheno second mycin and Osthole is 1:1,2:1,5:2.
Weight percentage of the weight summation of pheno second mycin and Osthole in bactericidal composition in the composition
It is 0.1%~20%, preferably 1%~10%.
Bactericidal composition provided by the invention, including active constituent pheno second mycin and Osthole, further include other auxiliary
The present composition is prepared into what any one was suitble to use in agricultural production by ingredient with conventional Pesticide formulation method
Dosage form, preferred dosage form include aqueous emulsion, microemulsion, aqua, suspending agent.
Further, other described auxiliary elements are that auxiliary agent, filler and other active ingredients that are beneficial to are being stored and used
The known substance that middle stabilization and drug effect play, such as solvent, dispersant, wetting agent, preservative, antifoaming agent, synergist, emulsifier
Deng.
Further, bactericidal composition of the invention selects to apply side according to the difference of target object and use environment
Formula, such as spraying, atomizing, pour dial.
Further, composition of the invention can be provided each substance in i.e. composition in the form of finished product preparation and mixed
It closes, can also be provided, directly be mixed in proportion in bucket or tank using preceding, then according to the cooperation of active ingredient with unit dose form
Ratio, method of administration, using place, controlling object etc. is diluted to required concentration at dosage form.
Further, bactericidal composition of the invention can be also used in mixed way with other agricultural active ingredients, as insecticide,
Fungicide, herbicide, fertilizer, synergist, plant growth regulator etc..
The bactericidal composition including but not limited to prevents on cereal crops, rust in the purposes of prevention corps diseases
Disease, full rot, banded sclerotial blight, false smut, rice blast, head blight, the scab on gourd, fruit and vegetable, anthracnose, leaf spot, downy mildew
Disease, powdery mildew, the purposes of leaf mold, prevention rice green smut and uncinula necator have special efficacy.
Compared with prior art, bactericidal composition of the invention has the beneficial effect that：
(1) by the compounding or mixture of pheno second mycin and Osthole, there is prevention corps diseases significant collaboration to increase
Effect acts on, and reduces the usage amount of active ingredient, reduces the access times of pesticide, save pesticide producing and use cost.
(2) active constituent pheno second mycin and the Osthole mechanism of action are different in present invention combination, and the two combination is answered
With increasing the action site to target, while increasing preventive effect, it is general to expand prevention.
(3) active constituent pheno second mycin and fructus cnidii complex or mixture in present invention combination, can efficiently against or prolong
The generation of slow pathogen resistance, extends the service life of pesticide active ingredient.
(4) active constituent pheno second mycin and Osthole are biological series bactericidal agent in present invention combination, and the two combination is answered
With environmentally safe to safety of human and livestock.
(5) bactericidal composition preparation process of the invention is simple, to crop safety.
Specific implementation mode
Preferably to describe the present invention, following exemplary embodiment is provided.Content mentioned by embodiment cannot recognize
To be limitation of the invention, the selection of material prescription can be according to actual conditions by other equivalent or replacing with similar purpose
It is replaced for feature.That is, being such as not particularly limited, each feature is a series of equivalent or similar characteristics a example, this
The protection domain of the technical solution of invention is subject to claim and is limited.
One, indoor biological determination of activity
1. pheno second mycin and indoor biological determination of activity of the Osthole combination preparation to rice green smut
Subjects：False smut pathogen
Test method：This experiment uses mycelial growth rate method, is obtained according to virulence regression equation dense in the inhibition of medicament
Spend (EC50), it detaches on rice terrace rice diseased plants of the Ustilaginoidea virens FD-2 by picking up from Yichang and obtains.
On the basis of trial test, 5 quality are arranged in pheno second mycin and Osthole and combination object preparation
Concentration gradient, each mass concentration set 3 repetitions.Separately clear water is set as blank control.After false smut germ is activated, from bacterium colony side
Edge card punch prepares bacterium dish (diameter 6mm), and bacterium dish access drug containing is assisted on Ben Zheshi culture medium flat plates, 28 DEG C of dark culturings
After 14d, crossing method measures colony diameter, calculates inhibiting rate, establishes virulence regression equation, calculates each proportioning ustilaginoidea virens
EC50, and using the co-toxicity coefficient CTC of Wadlay methods calculating compounding agent, according to co-toxicity coefficient CTC and EC50Size synthesis comment
Valence determines optimum formula.
Synergy evaluation criterion：Co-toxicity coefficient (CTC)≤80 is antagonism, is summation action, CTC when 80 < CTC < 120
>=120 be synergistic effect.Test result is as shown in table 1.
1 pheno second mycin of table and indoor biological determination of activity of the Osthole combination preparation to rice green smut
From the indoor biological determination of activity of table 1 it is found that pheno second mycin is apparently higher than frutus cnidii to the virulence of rice green smut
The virulence of element, is 1 when the compounding of the two compares:15 and 25:When 1, co-toxicity coefficient is less than 120, synergy unobvious, and when the two compounding
Ratio is 1:10~20:When 1, co-toxicity coefficient is above 120, shows certain synergistic function, wherein proportioning is 4:1
When, co-toxicity coefficient 185.54, synergistic function is more notable.
2. pheno second mycin and indoor biological determination of activity of the Osthole combination preparation to uncinula necator
Subjects：Powdery mildew pathogenic bacteria
Test method：Using pot-culture method, 5 various concentration gradients are arranged (in pilot study in single dose and each Mixed Pharmacy
On the basis of, bacteriostasis rate is set in the range of 5%~90% by geometric progression).If clear water processing is blank control, each to locate
Reason is repeated 4 times.Liquid is uniformly sprayed on blade face, it is spare after liquid natural air drying.It is natural with spore suspension spray inoculation
It air-dries, then moves to thermostatic chamber, under conditions of temperature is 20~24 DEG C, cultivate 7d~10d.Wait for that blank control disease leaf rate reaches
When 80% or more, incidence is managed in classification investigation everywhere, often handles at least 30 leaves of investigation.Grade scale is：
0 grade：It is disease-free；
1 grade：Lesion area accounts for 5% or less entire leaf area；
3 grades：Lesion area accounts for the 5%~15% of entire leaf area；
5 grades：Lesion area accounts for the 15%~25% of entire leaf area；
7 grades：Lesion area accounts for the 25%~50% of entire leaf area；
9 grades：Lesion area accounts for the 50%~75% of entire leaf area；
11 grades：Lesion area accounts for 75% or more of entire leaf area；
According to survey data, the disease index and control effect of each processing are calculated.Pass through preventive effect niqueMin and series concentration
Logarithm between linear regression analysis, find out the EC of each medicament50Value.The co-toxicity coefficient of mixture is calculated with Sun Yunpei's Method
(CTC), activity of the reagent agent to germ is evaluated with this.The co-toxicity coefficient (CTC) >=120 of complex preparation shows as synergy work
With；CTC≤80 show as antagonism；80 < CTC < 120 show as summation action.
Toxicity index (TI)=standard agent EC50/ reagent agent EC50×100
Theoretical toxicity index (TTI)=standard agent toxicity index × standard agent in mixing assembles percentage+
Reagent agent toxicity index × reagent agent percentage in mixing assembles
The EC of actual toxicity index (ATI)=standard single dose50The EC of value/mixture50Value × 100
Co-toxicity coefficient (CTC)=survey toxicity index/theoretical toxicity index × 100
2 pheno second mycin of table and indoor biological determination of activity of the Osthole combination preparation to uncinula necator
From the experiment of the toxicity of table 2 it is found that pheno second mycin and Osthole are 1:10~20:Compounding pair in the range of 1
Uncinula necator shows certain synergistic function, when the proportioning of the two is 9:1, co-toxicity coefficient 192.87, collaboration increases
Effect effect is more notable.
Two, example of formulations
Embodiment 1：2% pheno second mycin osthole water-emulsion agent (1:1)
The preparation method of the aqueous emulsion is：Above-mentioned material is mixed in proportion, after high shear agitation is uniform to get
2% pheno second mycin osthole water-emulsion agent.
Embodiment 2：4.5% pheno second mycin Osthole suspending agent (2:1)
The preparation method of the suspending agent is：Above-mentioned material is mixed in proportion, each components is waited to be mixed according to the formula
Uniformly, semi-finished product are obtained after sand milling or high speed shear, are mended to be mixed with water after analysis and be filtered up to 4.5% pheno second mycin
Osthole suspending agent.
Embodiment 3：7% pheno second mycin Osthole aqua (5:2)
Above-mentioned formula is pre-mixed in proportion, blender is added and is uniformly mixed that can be prepared by 7% pheno second mould
Plain Osthole aqua.
Embodiment 4：10% pheno second mycin Osthole microemulsion (4:1)
The preparation method of the microemulsion is：Pesticide original medicine solvent, cosolvent are dissolved, emulsifier, antifreeze is added
Other auxiliary elements such as agent, stabilizer uniformly mix, add deionized water, it is mould that 10% pheno second is can be prepared by after being sufficiently stirred
Plain Osthole microemulsion.
Embodiment 5：15% pheno second mycin Osthole microemulsion (13:2)
The preparation method of the microemulsion is：Above-mentioned material is mixed in proportion, after high shear agitation is uniform, you can
15% pheno second mycin Osthole microemulsion is made.
Embodiment 6：20% pheno second mycin osthole water-emulsion agent (9:1)
The preparation method of the aqueous emulsion is：Above-mentioned material is mixed in proportion, after high shear agitation is uniform, you can
20% pheno second mycin osthole water-emulsion agent is made.
Three, field trial
1. pheno second mycin is with Osthole combination preparation to the field control effectiveness test of rice green smut
Subjects：Rice green smut
Reagent agent：Treatment agent be embodiment 1-3 combination preparation, comparison medicament be 1% pheno second mycin suspending agent and
1% osthole water-emulsion agent, clear water are blank control.
Test method：Experiment is located at one peasant household of Changsha, Hunan Furong District peace village, and experimental plot is rice replanting for many years
Ground, and rice green smut occurs seriously over the years.It is new Hunan excellent 80 for examination rice varieties, other sterilizations is no longer sprayed during experiment
Agent, other field management routinely carry out, and often processing is repeated 3 times, totally 30 cells, plot area 30m2, random district's groups row
Row.Liquid is uniformly sprayed on to rice complete stool, when dispenser, is hidden every adjacent experimental plot with plastic film, prevents medicament mutually dry
It disturbs.
Investigation method：Using parallel great-jump-forward five point sampling, 25 clumps of rice are investigated per cell, it is total in the investigation of the rice stage of yellow ripeness
Spike number and false smut incidence calculate diseased plant rate, disease index and control effect.
False smut grade scale:
0 grade:It is disease-free；
1 grade:Per fringe, there are one infected seeds；
2 grades:There are 2~4 infected seeds per fringe；
3 grades:There are 5~7 infected seeds per fringe；
4 grades:There are 8~10 infected seeds per fringe；
5 grades:There are 10 or more infected seeds per fringe.
The computational methods of disease index and control effect:
3 pheno second mycin of table is with Osthole combination preparation to the field control effectiveness test of rice green smut
Field trial shows that pheno second mycin has excellent prevention with Osthole combined bactericide prevention rice green smut
Effect has significant control effect compared with single dose.Pheno second mycin provided by the present invention and Osthole bactericidal composition
False smut is prevented, not only increases preventive effect, and greatly reduce dosage and times for spraying, saves a large amount of economic throwing
Enter, will have important practical significance to increasing society, economy and ecological benefits.
2. pheno second mycin is with Osthole combination preparation to the field control effectiveness test test process of uncinula necator：
Subjects：Uncinula necator
Test medicine：Treatment agent be embodiment 1-3 combination preparation, comparison medicament be 1% pheno second mycin suspending agent and
1% osthole water-emulsion agent, clear water are blank control.
Test method：Experiment is located at the somewhere vineyard of Guilin, experimental field sets 24 cells, the cultivation of all cells
It is consistent.Test medicine, comparison medicament and the processing of the cell of blank control use random alignment.Each processing is repeated 4 times.It adopts
With MADEB-16 hand-powered knapsack sprayers (16L), regular constant spray is moistened with blade face blade back as standard, dispenser 2 altogether completely
It is secondary.The previous day to spray with the 1st time first investigates the disease index of each processing, investigates 5 plants per cell singling, is investigated in the 7th and 14d
Total number of sheets and the sick number of sheets at different levels, count disease index, calculate control effect test result and see the table below 4：
4 pheno second mycin of table is with Osthole combination preparation to the field control effectiveness test of uncinula necator
As can be seen from Table 4, uncinula necator can be effectively prevented after pheno second mycin and fructus cnidii complex, control effect is equal
Better than the preventive effect of single dose, and preventive effect phase is long, has no adverse effects to target crop in experiment scope of medication.
Based on the above description of the preferred embodiments of the present invention, through the above description, related personnel completely can be with
Without departing from the scope of the technological thought of the present invention', various changes and amendments are carried out.The technical scope of this invention
It is not limited to the contents of the specification, it is necessary to determine the technical scope according to the scope of the claims.
Claims (7)
1. a kind of bactericidal composition of second containing pheno mycin and Osthole, which is characterized in that the bactericidal composition active constituent
Including pheno second mycin and Osthole, the weight ratio of the pheno second mycin and Osthole is 1:10~20:1.
2. the bactericidal composition of a kind of second containing pheno mycin and Osthole according to claim 1, it is characterised in that：It is described
The weight ratio of pheno second mycin and Osthole is 1:5~10:1.
3. the bactericidal composition of a kind of second containing pheno mycin and Osthole according to claim 1, it is characterised in that：It is described
The weight ratio of pheno second mycin and Osthole is 1:1,2:1,5:2.
4. the bactericidal composition of a kind of second containing pheno mycin and Osthole according to claim 1, it is characterised in that：It is described
In bactericidal composition weight percentage of the weight summation of pheno second mycin and Osthole in bactericidal composition be 0.1%~
20%.
5. the bactericidal composition of a kind of second containing pheno mycin and Osthole according to claim 1, it is characterised in that：It is described
The present composition is prepared into any one and is suitble in agricultural production by the Pesticide formulation method of bactericidal composition routine
The dosage form used, including aqueous emulsion, microemulsion, aqua, suspending agent.
6. being used to prevent the purposes of corps diseases according to bactericidal composition described in any one of claim 1-5 claims.
7. purposes according to claim 6, it is characterised in that：The corps diseases are rice green smut and grape white powder
Disease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811000539.1A CN108782566A (en) | 2018-08-30 | 2018-08-30 | A kind of bactericidal composition of second containing pheno mycin and Osthole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811000539.1A CN108782566A (en) | 2018-08-30 | 2018-08-30 | A kind of bactericidal composition of second containing pheno mycin and Osthole |
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| CN108782566A true CN108782566A (en) | 2018-11-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114982770A (en) * | 2022-06-16 | 2022-09-02 | 江西省农业科学院植物保护研究所 | Composition for preventing and treating sesame wilt and application thereof |
-
2018
- 2018-08-30 CN CN201811000539.1A patent/CN108782566A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114982770A (en) * | 2022-06-16 | 2022-09-02 | 江西省农业科学院植物保护研究所 | Composition for preventing and treating sesame wilt and application thereof |
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Application publication date: 20181113 |