CN103688952A - Sterilization composition containing tiadinil and chitosan oligosaccharide - Google Patents
Sterilization composition containing tiadinil and chitosan oligosaccharide Download PDFInfo
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- CN103688952A CN103688952A CN201310680506.7A CN201310680506A CN103688952A CN 103688952 A CN103688952 A CN 103688952A CN 201310680506 A CN201310680506 A CN 201310680506A CN 103688952 A CN103688952 A CN 103688952A
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- tiadinil
- bactericidal composition
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Abstract
The invention discloses a sterilization composition containing tiadinil. The composition comprises the effective quantities of tiadinil and chitosan oligosaccharide for synergism. The composition has a very good synergistic effect within a certain range, is improved in disease control effect, can be used to control various diseases in agricultural production, is reduced in the times of use, reduces the use cost and delays the generation of the pesticide resistance of pathogens to a single dose.
Description
Technical field
The present invention relates to the bactericidal composition that contains tiadinil and chitosan oligosaccharide, belong to bactericide field, composition is used for preventing and treating rice blast, downy mildew, powdery mildew, anthracnose, late blight, leaf spot, scab etc.
Background technology
Tiadinil is the new type bactericide of amide containing structure, is a kind of New-type long-acting rice field bactericide, can effectively stop the invasion of pathogen, and have obvious induction of resistance.For Reasonable Protection medicament, delay germ to the drug-fast generation of new medicament and improve the control efficiency of medicament, be necessary to carry out rational composition research.In patent application 200810183486.1, disclose the microbicide compositions that contains tiadinil and flutolanil, its goal of the invention is the preparation that preparation contains active component, and it does not have clear and definite two kinds of active components can synergy.Composite except this, the processing method that in patent application, tiadinil and virazole, Ningnanmycin, antofine etc. is mixed with to interacting composition is described, but its do not have yet explanation its objective is for obtain can synergy composition.So, also there is no at present the report about tiadinil and other sterilization component composition research.Inventor, by the research to tiadinil and the composite effect of chitosan oligosaccharide, has found some beyond thought effects.
Summary of the invention
The object of the present invention is to provide the bactericidal composition that contains tiadinil, it is that the sterilization component of two kinds of different structures, the different mechanisms of action is carried out composite, be expanding prevention spectrum and the effective way that improves drug effect, the more important thing is and avoid or delay the generation of disease to new composition resistance.For realizing object of the present invention, inventor is composite by tiadinil and chitosan oligosaccharide, for preventing and treating the disease of crop.
The object of the invention is to realize by following measures.
The invention provides a kind of bactericidal composition that contains tiadinil and chitosan oligosaccharide, it is characterized in that tiadinil and chitosan oligosaccharide that said composition comprises synergy effective dose, ratio of quality and the number of copies between two components is 1:50-50:1, preferred, and between two components, mass fraction is than being 1:20:5:1.
In above-mentioned bactericidal composition, preferred, the quality sum of two components accounts for the 1-90% of bactericidal composition gross mass percentage.
Above-mentioned composition of the present invention can be made into suspending agent, wetting powder, water dispersible granules, aqua, microemulsion, aqueous emulsion, for spraying, filling root, seed dressing etc.
The present invention also finds, above-mentioned bactericidal composition, in the situation that active component is used total amount to reduce separately, has good control efficiency to rice blast, cucumber downy mildew, wheat powdery mildew, and synergistic effect is obvious.
The present invention also provides above-mentioned composition for preventing and treating the purposes of crop pest, the disease of suitable control has the fungus-caused rice blast of Fungi Imperfecti, scab etc., the fungus-caused downy mildew of Mastigomycotina, late blight, peronospora tabacina etc., the fungus-caused powdery mildew of Ascomycotina, anthracnose, leaf spot etc., the rust that Basidiomycotina causes, smut etc.Therefore, the present invention also comprises the purposes of various agricultural fungal diseases on above-mentioned composition control crop.
In the purposes of above-mentioned composition of the present invention, described crop is preferably paddy rice, wheat, cucumber, watermelon, apple, grape, oranges and tangerines, pears, lichee, flowers etc.
Beneficial effect of the present invention is:
1, synergistic effect is obvious: composition shows good synergistic effect in certain ratio range, has improved the protection effect of composition.
2, expanding prevention spectrum: composition can be prevented and treated the multiple diseases in agricultural production.
3, reduce use cost: because compositely thering is the preventive effect of raising, control spectrum increases, and has reduced access times, has reduced use cost;
4, delay pesticide resistance: the composition of two kinds of different mechanism of action is composite, pathogen is difficult for developing immunity to drugs, and delays pathogen to the drug-fast generation of single dose.
Embodiment
Following examples are to further illustrate of the present invention, but the present invention is not confined to composition and purposes in present embodiment.
The control efficiency of embodiment 1 tiadinil composition to rice blast
Single compound or composition are prepared into the mother liquor of 1000mg/L with organic solvent dissolution.According to biological activity determination trial test, a certain amount of above-mentioned mother liquor is diluted with 0.1% Tween 80, be mixed with the concentration needing.During mensuration, first liquid medicine jet is imposed on to pot rice plant, then inoculate pathogen, moisturizing is cultivated after 24h, is placed in greenhouse and cultivates, and measures the percentage that plant leaf surface infects after certain hour.Use Abbot formula, convert percentage to preventive effect.
Theoretical preventive effect (%)=x+y-xy
X is the preventive effect of the active component A of working concentration while being a, and y is the preventive effect of the active component B of working concentration while being b.Compare theoretical effect and actual effect, evaluate the synergy of composition, take when actual preventive effect is greater than theoretical preventive effect is synergistic effect.The results are shown in Table 1.
The control efficiency of table 1 tiadinil composition to rice blast
By potted plant test, as seen from Table 1, the composition of tiadinil and chitosan oligosaccharide to the effect of rice blast all higher than composition theoretical preventive effect.Obviously, the composite of tiadinil and chitosan oligosaccharide is synergy to rice blast.
The control efficiency of embodiment 2 tiadinil compositions to cucumber downy mildew
Single compound or composition are prepared into the mother liquor of 1000mg/L with organic solvent dissolution.According to biological activity determination trial test, a certain amount of above-mentioned mother liquor is diluted with 0.1% Tween 80, be mixed with the concentration needing.During test, cucumber plant, substantially in 4 leaf phases, is investigated downy mildew incidence before the 1st medicine.With tiadinil composition, carried out cucumber downy mildew pot experiment, and established corresponding single dose and blank, adopted the conventional conventional spray of manual sprayer, every medicament sprays 10 strains, and the 7-10d after 1 time that sprays sprays 1 time again.10-14d investigation after the 2nd dispenser, whole blades are investigated in every strain, and the total number of sheets of record investigation, the sick number of sheets, calculate disease index and preventive effect according to following stage division.
Blade staging:
0 grade: anosis
1 grade: the connected area of scab accounts for below 1% of whole leaf area;
3 grades: the connected area of scab accounts for the 1%-10% of whole leaf area;
5 grades: the connected area of scab accounts for the 11%-20% of whole leaf area;
7 grades: the connected area of scab accounts for the 21%-50% of whole leaf area;
9 grades: the connected area of scab accounts for the more than 51% of whole leaf area;
Theoretical preventive effect (%)=x+y-xy
X is the preventive effect of the active component A of working concentration while being a, and y is the preventive effect of the active component B of working concentration while being b.Compare theoretical effect and actual effect, evaluate the synergy of composition, take when actual preventive effect is greater than theoretical preventive effect is synergistic effect.The results are shown in Table 2.
The control efficiency of table 2 tiadinil composition to cucumber downy mildew
By tiadinil composition to cucumber downy mildew potted plant test find, the composition of tiadinil and chitosan oligosaccharide.Obviously, the composition of tiadinil and chitosan oligosaccharide is synergy to cucumber downy mildew.
Embodiment tri-: tiadinil composition is to wheat powdery mildew field trial
With composition, carried out wheat powdery mildew field trial, and established corresponding single dose and blank, every medicament is established community 30m
2.Adopt the conventional conventional spray of knapsack sprayer, test is respectively sprayed 1 time in booting and flowering initial stage, 7～10d before medicine and after the 2nd dispenser, every processing is by 5 samplings, every 50 strains, whole blades are investigated in every strain, and the total number of sheets of record investigation, the sick number of sheets, calculate disease index and preventive effect according to following stage division.
Blade staging:
0 grade: anosis
1 grade: the connected area of scab accounts for below 1% of whole leaf area;
3 grades: the connected area of scab accounts for the 1%-5% of whole leaf area;
5 grades: the connected area of scab accounts for the 6%-25% of whole leaf area;
7 grades: the connected area of scab accounts for the 26%-50% of whole leaf area;
9 grades: the connected area of scab accounts for the more than 51% of whole leaf area;
Theoretical preventive effect (%)=x+y-xy
X is the preventive effect of the active component A of working concentration while being a, and y is the preventive effect of the active component B of working concentration while being b.Compare theoretical effect and actual effect, evaluate the synergy of composition, take when actual preventive effect is greater than theoretical preventive effect is synergistic effect.The bactericidal composition that contains tiadinil the results are shown in Table 3 to the control efficiency of wheat powdery mildew.
The bactericidal composition that table 3 contains tiadinil is to wheat powdery mildew field effect
By tiadinil composition, wheat powdery mildew test is found, the composition of tiadinil and chitosan oligosaccharide to the effect of wheat powdery mildew all higher than the theoretical preventive effect of correspondent composition.Obviously, the composition of tiadinil and chitosan oligosaccharide is synergy to wheat powdery mildew.
Claims (5)
1. a bactericidal composition that contains tiadinil, it is characterized in that tiadinil and chitosan oligosaccharide that said composition comprises synergy effective dose, ratio of quality and the number of copies between two components is 1:50-50:1, and preferred, the ratio of quality and the number of copies between two components is 1:20-5:1.
2. bactericidal composition according to claim 1, the quality sum of two components accounts for the 1-90% of bactericidal composition gross mass percentage.
3. bactericidal composition claimed in claim 2, said composition is made into suspending agent, wetting powder, water dispersible granules, aqua, microemulsion or aqueous emulsion, for spraying, fill with root or seed dressing.
4. bactericidal composition claimed in claim 3, for preventing and treating the purposes of crop pest, is wherein rice blast, scab, downy mildew, late blight, peronospora tabacina, powdery mildew, anthracnose, leaf spot, rust or smut as disease.
5. purposes according to claim 4, wherein said crop is paddy rice, wheat, cucumber, watermelon, apple, grape, oranges and tangerines, pears, lichee or flowers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310680506.7A CN103688952A (en) | 2013-12-14 | 2013-12-14 | Sterilization composition containing tiadinil and chitosan oligosaccharide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310680506.7A CN103688952A (en) | 2013-12-14 | 2013-12-14 | Sterilization composition containing tiadinil and chitosan oligosaccharide |
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| Publication Number | Publication Date |
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| CN103688952A true CN103688952A (en) | 2014-04-02 |
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| CN201310680506.7A Pending CN103688952A (en) | 2013-12-14 | 2013-12-14 | Sterilization composition containing tiadinil and chitosan oligosaccharide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112674103A (en) * | 2020-12-29 | 2021-04-20 | 安徽丰乐农化有限责任公司 | Antibacterial composition, pesticide bactericide and method for preventing and treating diseases of crops |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103098801A (en) * | 2013-01-17 | 2013-05-15 | 海南正业中农高科股份有限公司 | Sterilization composition containing tiadinil |
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2013
- 2013-12-14 CN CN201310680506.7A patent/CN103688952A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103098801A (en) * | 2013-01-17 | 2013-05-15 | 海南正业中农高科股份有限公司 | Sterilization composition containing tiadinil |
Non-Patent Citations (1)
| Title |
|---|
| 刘幸海等: "具有农业生物活性壳寡糖的研究进展", 《农药学学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112674103A (en) * | 2020-12-29 | 2021-04-20 | 安徽丰乐农化有限责任公司 | Antibacterial composition, pesticide bactericide and method for preventing and treating diseases of crops |
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Application publication date: 20140402 |