CN107087617A - Bactericidal composition containing Chinese yam polysaccharide and isopyrazam - Google Patents
Bactericidal composition containing Chinese yam polysaccharide and isopyrazam Download PDFInfo
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- CN107087617A CN107087617A CN201710271430.0A CN201710271430A CN107087617A CN 107087617 A CN107087617 A CN 107087617A CN 201710271430 A CN201710271430 A CN 201710271430A CN 107087617 A CN107087617 A CN 107087617A
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- CN
- China
- Prior art keywords
- isopyrazam
- chinese yam
- yam polysaccharide
- bactericidal composition
- polysaccharide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
-
- 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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/12—Powders or granules
-
- 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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/12—Powders or granules
- A01N25/14—Powders or granules wettable
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention relates to a kind of bactericidal composition containing Chinese yam polysaccharide and isopyrazam, active component is made up of Chinese yam polysaccharide and isopyrazam, and the weight ratio of described Chinese yam polysaccharide and isopyrazam in the composition is 1:0.3‑0.5.Chinese yam polysaccharide and isopyrazam are 1 according to weight ratio by the present invention:0.3 0.5 are compounded, with obvious synergistic function, Chinese yam polysaccharide as isopyrazam synergist, inhibitory activity of the isopyrazam to germ can be significantly improved, the two mixture can also reduce the use of chemical agent isopyrazam, so as to reduce cost, the residual of chemical agent is reduced.
Description
Technical field
The present invention relates to disinfectant use in agriculture field, more particularly to a kind of Bactericidal composite containing Chinese yam polysaccharide and isopyrazam
Thing.
Background technology
The preventing and treating of powdery mildew of cucumber is based on chemical prevention, and with the appearance of efficient medicament, powdery mildew is controlled well
System.The medicament prevented and treated for cucurbits powdery mildew is registered by the country mainly triazole bactericidal agent hexaconazole, Difenoconazole, nitrile bacterium azoles
And Tebuconazole, and methoxy acrylic bactericide kresoxim-methyl, Fluoxastrobin and pyraclostrobin etc..Due to triazole type and first
Epoxide acrylic bactericide action site is single, easily develops immunity to drugs, and white powder could be controlled well by increasing dosage
Disease, and its dosage of triazole type influence normal plants is limited.Therefore, to developing safe efficient, wide spectrum new type bactericide
Demand is more and more stronger.
Isopyrazam is a kind of new type bactericide that Syngenta Co., Ltd researched and developed in 2008, belongs to pyrazol acid amide chemical combination
Pyrazoles, acid amides and benzo ENB ring assign its high activity in thing, chemical constitution.
Composition research at present on isopyrazam is actually rare, and Chinese patent 201510240644.2 discloses one kind
Bactericidal composition containing isopyrazam, its active ingredient is isopyrazam and SYP-Z048, and both mass ratioes are 1:50-
50:1；Composition has obvious synergistic effect, and security is good, it is adaptable to prevent and treat vegetables, fruit tree, cereal crop powdery mildew and
Gray mold.Chinese patent 201510993934.4 discloses a kind of bactericidal composition containing isopyrazam and penconazole, has
Composition is imitated for isopyrazam and penconazole, the weight ratio of isopyrazam and penconazole is 1：10-10：1, isopyrazam and
Percentage by weight is 2-90% to penconazole weight summation in the composition；The invention can be prepared as in aqueous emulsion, suspending agent
One kind, has significant synergistic function to powdery mildew of cucumber, can reduce Pesticide use amount, reduction agricultural chemicals is on plant
Residual quantity, mitigates the pollution to environment, delays the generation of disease drug resistance, increases the Pesticide use life-span.It can be seen that, on using separately
The research that one component improves isopyrazam single-activity has been achieved for certain effect.
Chinese yam polysaccharide is the main active in Chinese yam.Chinese yam polysaccharide is main by mannose, xylose, arabinose, Portugal
Grape sugar and galactolipin composition.Research shows that Chinese yam is extracted through hot water, deproteinized, ethanol precipitation, SephadexG-100 are purified
Chinese yam polysaccharide, molecular weight is 8.1 × 10-4.Current people are concentrated mainly on following aspect for the research of Chinese yam polysaccharide：Blood drops
The functions such as sugar, tonifying middle-Jiao and Qi, stimulation or regulation immune system, and the research for its bacteria resistance function is also fewer.
Chinese yam polysaccharide yet there are no for the inhibitory action and Chinese yam polysaccharide of fungi for the synergistic effect of bactericide
There is research open.
The content of the invention
The technical problem to be solved in the present invention is a kind of bactericidal composition containing Chinese yam polysaccharide and isopyrazam of offer,
The activity of isopyrazam is significantly improved, chemical pesticide dosage is reduced, delays the resistance to the action of a drug of pathogen to produce.
The technical scheme that present invention solution above-mentioned technical problem is taken is as follows：
A kind of bactericidal composition containing Chinese yam polysaccharide and isopyrazam, active component is by Chinese yam polysaccharide and isopyrazam
Composition, the weight ratio of described Chinese yam polysaccharide and isopyrazam in the composition is 1:0.3-0.5.
Described bactericidal composition is prepared into wettable powder or granule.
Described bactericidal composition is used to prevent and treat powdery mildew of cucumber.
The beneficial effect that the present invention possesses is：Chinese yam polysaccharide and isopyrazam are 1 according to weight ratio:0.3-0.5 is carried out
Compounding, with obvious synergistic function, the inhibitory action very little of Chinese yam polysaccharide for fungi in itself, it is mainly as pyrazoles
The synergist of naphthalene bacterium amine, can significantly improve inhibitory activity of the isopyrazam to germ, and the two mixture can also reduce chemistry
The use of medicament isopyrazam, so as to reduce cost, reduces the residual of chemical agent.
Embodiment
Technical scheme and beneficial effect are described further with reference to specific embodiment, it is of the present invention
Percentage be mass percent.
One indoor joint toxicity measuring test
In order to illustrate synergistic effect of the Chinese yam polysaccharide for isopyrazam, the present invention calculates poison system altogether using the abundant methods of Sun Yun
(CTC) is counted to evaluate mixed effect.
Toxicity index TI (A)=(EC50 of standard agent A EC50 ÷ A agent) × 100
Toxicity index TI (B)=(EC50 of standard agent A EC50 ÷ B agent) × 100
Actual toxicity index ATI (AB)=(A EC50 ÷ AB EC50) × 100
Percentage+TI (B) × B percentages in mixture of theoretical toxicity index TTI (AB)=TI (the A) × A in mixture
Number
Co-toxicity coefficient (CTC)=[mixture surveys toxicity index (ATI) ÷ mixtures theoretical toxicity index (TTI)] × 100
Evaluation criterion is：Co-toxicity coefficient >=120 show as synergistic effect；Co-toxicity coefficient≤80 show as antagonism；80<
Co-toxicity coefficient<120 show as summation action.
Test method：The cucumber seedling for preparing health is potted plant, and all cucumber seedlings are inoculated with the same time using spore method is shaken off
Cucumber powdery mildew's pathogen, after inoculation by cucumber seedling be placed on 18 DEG C, humidity be 70%, light application time be 16h+ interlunations be 8h perseverance
Cultivated in greenhouse.It is inoculated with after 24h and carries out reagent spray processing.(about 7 days left sides when sorus is grown on the cucumber seedling of blank control
It is right) disease index of each processing of investigation, calculate the EC of each medicament50, and according to the co-toxicity coefficient of the abundant method calculating mixtures of Sun Yun.
The Toxicity Determination result counted according to above-mentioned computational methods is as shown in the table：
| Medicament | EC50(ppm) | Survey toxicity index | Theoretical toxicity index | Co-toxicity coefficient |
| Isopyrazam single dose (A) | 4.09 | 6907.33 | / | / |
| Chinese yam polysaccharide single dose (B) | 282.51 | 100.00 | / | / |
| A:B=0.1:1 | 48.23 | 585.76 | 718.85 | 81.5 |
| A:B=0.2:1 | 26.55 | 1064.07 | 1234.56 | 86.2 |
| A:B=0.3:1 | 9.27 | 3047.57 | 1670.92 | 182.4 |
| A:B=0.4:1 | 6.80 | 4154.56 | 2044.95 | 203.2 |
| A:B=0.5:1 | 7.15 | 3951.19 | 2369.11 | 166.8 |
| A:B=0.6:1 | 9.36 | 3018.27 | 2652.75 | 113.8 |
| A:B=0.7:1 | 12.38 | 2281.99 | 2903.02 | 78.6 |
| A:B=0.8:1 | 24.10 | 1172.24 | 3125.48 | 37.5 |
| A:B=0.9:1 | 15.91 | 1775.68 | 3324.53 | 53.4 |
| A:B=1:1 | 8.25 | 3424.36 | 3503.67 | 97.7 |
| A:B=2:1 | 7.69 | 3673.73 | 4638.22 | 79.2 |
| A:B=3:1 | 13.18 | 2143.47 | 5205.50 | 41.2 |
| A:B=4:1 | 7.82 | 3612.66 | 5545.87 | 65.1 |
| A:B=5:1 | 6.44 | 4386.80 | 5772.78 | 76.0 |
As can be known from the above table, isopyrazam and the weight of Chinese yam polysaccharide ratio are 0.3-0.5:When 1, its co-toxicity coefficient is all higher than
120, show obvious synergistic function；And when weight ratio is 0.8:1、0.9:1、2:1、3:1、4:1、5:When 1, it is malicious altogether
Coefficient is less than 80, shows obvious antagonism；Other ratios 0.1:1、0.2:1、0.6:1、0.7:1 and 1:1 only shows
Simple summation action.
Two products prepare embodiment
The Chinese yam polysaccharide isopyrazam wettable powder (1 of product embodiments 1 1.3%:0.3)
Chinese yam polysaccharide 1%, isopyrazam 0.3%, sodium carboxymethylcellulose 5%, alkylnaphthalene sulfonate 1%, lightweight carbon
Sour calcium 3%, kaolin supplies 100%.
Raw material weighing is carried out by above-mentioned formula, is crushed after being well mixed through airslide disintegrating mill, qualified i.e. obtained 1.3% is detected
Chinese yam polysaccharide isopyrazam wettable powder.
Reference product embodiment 1
1% Chinese yam polysaccharide wettable powder：Chinese yam polysaccharide 1%, sodium carboxymethylcellulose 5%, alkylnaphthalene sulfonate 1%,
Precipitated calcium carbonate 3%, kaolin supplies 100%.Preparation method is with product embodiments 1.
Reference product embodiment 2
0.3% isopyrazam wettable powder：Isopyrazam 0.3%, sodium carboxymethylcellulose 5%, alkylnaphthalene sulphur
Hydrochlorate 1%, precipitated calcium carbonate 3%, kaolin supplies 100%.Preparation method is with product embodiments 1.
Three crop field test examples
Test medicine：The said goods embodiment 1 is respectively as test group 1, and 1-2 is respectively as control for reference product embodiment
Group 1-2.Separately set blank control group.
Test method：Second of spray pesticide after first time spray pesticide at the initial stage of a disease, 7d.It is total to dispenser twice, each
Processing sets 3 repetitions, and each plot area is 66.7m2.Test site：Nanning.
Investigation method：5 sampling surveys, the every company of taking are carried out in 7d, 15d after second of dispenser in each cell respectively
Continuous 2 plants, look into whole blades, and classification record incidence, calculates disease index and preventive effect in units of blade；
Formula (1)：Disease index calculation formula：In formula (1)：X- disease indexs；Ni- disease at different levels
The number of sheets；I- is with respect to value of series；N- investigates total number of sheets.
Formula (2)：Prevention effect calculation formula：In formula (2)：P- prevention effects, unit
For percentage (%)；CK0Disease index before the dispenser of-blank district；CK1Disease index after the dispenser of-blank district；PT0- medicine
Disease index before agent treatment region dispenser；PT1Disease index after dispenser after-chemicals treatment.
Statistical result is as shown in the table.
Prevent and treat the field control effectiveness test result of powdery mildew of cucumber
As seen from the above table, the composition of the invention containing Chinese yam polysaccharide and isopyrazam is less than in active ingredient dosage
In the case of comparison medicament, the effect to powdery mildew of cucumber is more significantly excellent than comparison medicament.The 7d investigation knot after second of dispenser
Fruit shows that prevention effect of the invention is higher than isopyrazam single dose by 16.92%；15d investigation results are shown after second of dispenser,
The prevention effect of the present invention is higher than isopyrazam single dose by 22.86%.
Claims (3)
1. a kind of bactericidal composition containing Chinese yam polysaccharide and isopyrazam, it is characterised in that active component in composition by
Chinese yam polysaccharide and isopyrazam composition, the weight ratio of described Chinese yam polysaccharide and isopyrazam in the composition is 1:0.3-
0.5。
2. the bactericidal composition according to claim 1 containing Chinese yam polysaccharide and isopyrazam, it is characterised in that described
Bactericidal composition is prepared into wettable powder or granule.
3. the bactericidal composition according to claim 1 or 2 containing Chinese yam polysaccharide and isopyrazam, it is characterised in that institute
The bactericidal composition stated is used to prevent and treat powdery mildew of cucumber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710271430.0A CN107087617A (en) | 2017-04-24 | 2017-04-24 | Bactericidal composition containing Chinese yam polysaccharide and isopyrazam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710271430.0A CN107087617A (en) | 2017-04-24 | 2017-04-24 | Bactericidal composition containing Chinese yam polysaccharide and isopyrazam |
Publications (1)
| Publication Number | Publication Date |
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| CN107087617A true CN107087617A (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710271430.0A Withdrawn CN107087617A (en) | 2017-04-24 | 2017-04-24 | Bactericidal composition containing Chinese yam polysaccharide and isopyrazam |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104886122A (en) * | 2015-06-17 | 2015-09-09 | 广西田园生化股份有限公司 | Compound composition containing dufulin and pyrazole amide bactericide and bactericide |
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2017
- 2017-04-24 CN CN201710271430.0A patent/CN107087617A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104886122A (en) * | 2015-06-17 | 2015-09-09 | 广西田园生化股份有限公司 | Compound composition containing dufulin and pyrazole amide bactericide and bactericide |
Non-Patent Citations (2)
| Title |
|---|
| 王洪新等: "山药多糖研究进展", 《食品与生物技术学报》 * |
| 申瑞平等: "两种新型琥珀酸脱氢酶抑制剂的抑菌活性比较", 《农药科学与管理》 * |
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Application publication date: 20170825 |