CN107087613A - A kind of bactericidal composition containing Chinese yam polysaccharide and Mancozeb - Google Patents
A kind of bactericidal composition containing Chinese yam polysaccharide and Mancozeb Download PDFInfo
- Publication number
- CN107087613A CN107087613A CN201710316461.3A CN201710316461A CN107087613A CN 107087613 A CN107087613 A CN 107087613A CN 201710316461 A CN201710316461 A CN 201710316461A CN 107087613 A CN107087613 A CN 107087613A
- Authority
- CN
- China
- Prior art keywords
- mancozeb
- 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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Classifications
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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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/12—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring
- A01N47/14—Di-thio analogues thereof
Abstract
The present invention relates to a kind of bactericidal composition containing Chinese yam polysaccharide and Mancozeb, active ingredient is made up of Chinese yam polysaccharide and Mancozeb, and the synergy weight ratio of Chinese yam polysaccharide and Mancozeb is 1:3‑5.The present invention is compounded Chinese yam polysaccharide and Mancozeb according to specific weight ratio, with obvious synergistic function, the inhibitory action very little of Chinese yam polysaccharide for fungi in itself, its synergist mainly as Mancozeb, inhibitory activity of the Mancozeb to germ can be significantly improved, the two mixture can also reduce the use of Mancozeb, so as to reduce cost, reduce the residual of chemical agent.
Description
Technical field
The present invention relates to disinfectant use in agriculture application field, more particularly to a kind of sterilization containing Chinese yam polysaccharide and Mancozeb
Composition.
Background technology
Different degrees of resist is generated to Pyricularia oryzae due to being currently used in the bactericide single dose of preventing and treating rice blast
Property of medicine problem, drug-fast improvement turns into the study hotspot currently paid close attention to.It is exactly to create to solve resistance problems most straightforward approach
The different new type bactericide of the mechanism of action processed, but the research and development of new type bactericide take, fund throwing even longer up to 8-10
Enter and generally require billions of dollars, difficulty is big, cost is high.The mixed important means effectively administered as the resistance to the action of a drug of bactericide, plays the part of
More and more important role.Therefore, targetedly carrying out the mixed of bactericide has positive meaning.
By the formula for producing synergistic effect by after combined use of pesticides, possesses advantages below：(1) preventing and treating spectrum is expanded, preventing and treating is simultaneously
The multiple diseases of generation；(2) difference of control disease infects the stage；(3) prevention effect of agricultural chemicals can be improved using synergistic effect；
(4) usage amount of some high price agricultural chemicals in drug cost, or the mixed agricultural chemicals of reduction is reduced；(5) the anti-medicine of old farmer's medicine is overcome
Property and the drug-fast generation for delaying or avoiding novel pesticide；(6) lead time is short；(7) development cost is low, with obvious economy
Benefit.
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.
At present, Chinese yam polysaccharide for fungi inhibitory action and Chinese yam polysaccharide for bactericide synergistic effect also not
Seeing has 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 Mancozeb of offer,
The activity of Mancozeb 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 Mancozeb, active ingredient is by Chinese yam polysaccharide and Mancozeb group
Into the synergy weight ratio of Chinese yam polysaccharide and Mancozeb is 1:3-5.
The synergy weight ratio of described Chinese yam polysaccharide and Mancozeb is 1:4.
Described bactericidal composition is prepared into pesticidal preparations.
Described bactericidal composition is used to prevent and treat rice blast.
The beneficial effect that the present invention possesses is：Chinese yam polysaccharide and Mancozeb are compounded according to specific weight ratio, tool
There is an obvious synergistic function, the inhibitory action very little of Chinese yam polysaccharide for fungi in itself, it is mainly as Mancozeb
Synergist, can significantly improve inhibitory activity of the Mancozeb to germ, and the two mixture can also reduce the use of Mancozeb,
So as to reduce cost, the residual of chemical agent is reduced.
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 Mancozeb, the present invention calculates co-toxicity coefficient using the abundant methods of Sun Yun
(CTC) mixed effect is evaluated.
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：Reference《The part of NY/T1156.8-2007 farm-chemical indoor determination test rules bactericide the 8th：It is anti-
Control rice blast experiment pot-culture method》With《The 6th, NY/T1156.6-2006 farm-chemical indoor determination test rules bactericide
Point：The synergy of mixture is determined》.
The measurement result of fraction is as shown in the table：
As can be known from the above table, the weight ratio of Mancozeb and Chinese yam polysaccharide is 3-5:When 1, its co-toxicity coefficient is all higher than 120, table
Reveal obvious synergistic function；And when weight ratio is 10:1 and 14:When 1, its co-toxicity coefficient is less than 80, shows substantially
Antagonism；Other only show simple summation action.
Two crop field test examples
In order to further illustrate beneficial effects of the present invention, applicant has also carried out multiple field medicine effect test.Below
The field experiment of part rice blast is enumerated as explanation.
Test method and drug effect computational methods：Reference《GB/T 17980.19-2000 pesticide field efficacy medicine test criterions
(1) bactericidal agent for preventing and treating paddy rice leaf diseases》.Each plot area is 60 ㎡, 3 repetitions is set, altogether dispenser 2 times, between each dispenser
Every 7 days.
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 3 clumps, look into whole blades, and classification record incidence, calculates disease index and preventive effect in units of blade；Test site：
Nanning.
Formula (1)：Disease index calculation formula：In：X- disease indexs；Ni- at different levels
The sick number of sheets；I- is with respect to value of series；N- investigates total number of sheets.
Formula (2)：Prevention effect calculation formula：In：P- prevention effects, it is single
Position is percentage (%)；CK0Disease index before the dispenser of-blank district；CK1Disease index after the dispenser of-blank district；PT0-
Disease index before chemicals treatment district dispenser；PT1Disease index after dispenser after-chemicals treatment.
Test medicine：
The Chinese yam polysaccharide Mancozeb wettable powder (1 of test group 1 5%:4)
Chinese yam polysaccharide 1%, Mancozeb 4%, sodium carboxymethylcellulose 15%, alkylnaphthalene sulfonate 2%, precipitated calcium carbonate
3%, kaolin supplies 100%.Raw material weighing is carried out by above-mentioned formula, is crushed after being well mixed through airslide disintegrating mill, detection is closed
Lattice are that 5% Chinese yam polysaccharide Mancozeb wettable powder is made.
The Chinese yam polysaccharide wettable powder of control group 1 1%：Chinese yam polysaccharide 1%, sodium carboxymethylcellulose 15%, alkyl naphthalene sulfonic acid
Salt 2%, precipitated calcium carbonate 3%, kaolin supplies 100%.Preparation method is with test group 1.
The Mancozeb wettable powder of control group 2 4%：Mancozeb 4%, sodium carboxymethylcellulose 15%, alkyl naphthalene sulfonic acid
Salt 2%, precipitated calcium carbonate 3%, kaolin supplies 100%.Preparation method is with test group 1.
Separately set blank control group.
As a result it is as shown in the table.
Prevent and treat the field control effectiveness test result of rice blast
As seen from the above table, the composition of the invention containing Chinese yam polysaccharide and Mancozeb active ingredient dosage less than pair
In the case of medicament, its prevention effect to rice blast 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 Mancozeb single dose by 18.28%；15d investigation results are shown after second of dispenser, this
The prevention effect of invention is higher than Mancozeb single dose by 11.47%.
Claims (4)
1. a kind of bactericidal composition containing Chinese yam polysaccharide and Mancozeb, it is characterised in that active ingredient by Chinese yam polysaccharide and
Mancozeb is constituted, and the synergy weight ratio of Chinese yam polysaccharide and Mancozeb is 1:3-5.
2. the bactericidal composition according to claim 1 containing Chinese yam polysaccharide and Mancozeb, it is characterised in that described
The synergy weight ratio of Chinese yam polysaccharide and Mancozeb is 1:4.
3. the bactericidal composition according to claim 1 containing Chinese yam polysaccharide and Mancozeb, it is characterised in that described
Bactericidal composition is prepared into pesticidal preparations.
4. the bactericidal composition according to claim 1 containing Chinese yam polysaccharide and Mancozeb, it is characterised in that described
Bactericidal composition is used to prevent and treat rice blast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710316461.3A CN107087613A (en) | 2017-05-08 | 2017-05-08 | A kind of bactericidal composition containing Chinese yam polysaccharide and Mancozeb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710316461.3A CN107087613A (en) | 2017-05-08 | 2017-05-08 | A kind of bactericidal composition containing Chinese yam polysaccharide and Mancozeb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107087613A true CN107087613A (en) | 2017-08-25 |
Family
ID=59638090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710316461.3A Withdrawn CN107087613A (en) | 2017-05-08 | 2017-05-08 | A kind of bactericidal composition containing Chinese yam polysaccharide and Mancozeb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107087613A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971837A (en) * | 2010-10-27 | 2011-02-16 | 陕西韦尔奇作物保护有限公司 | Antibacterial composition containing kasugamycin and mancozeb |
| CN105647217A (en) * | 2016-03-11 | 2016-06-08 | 朱彩玲 | Method using bagasse to produce degradable plastic wraps |
| CN107087612A (en) * | 2017-05-08 | 2017-08-25 | 广西南宁益土生物科技有限责任公司 | Chinese yam polysaccharide as dithiocarbamate bactericide synergist application |
-
2017
- 2017-05-08 CN CN201710316461.3A patent/CN107087613A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971837A (en) * | 2010-10-27 | 2011-02-16 | 陕西韦尔奇作物保护有限公司 | Antibacterial composition containing kasugamycin and mancozeb |
| CN105647217A (en) * | 2016-03-11 | 2016-06-08 | 朱彩玲 | Method using bagasse to produce degradable plastic wraps |
| CN107087612A (en) * | 2017-05-08 | 2017-08-25 | 广西南宁益土生物科技有限责任公司 | Chinese yam polysaccharide as dithiocarbamate bactericide synergist application |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170825 |
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| WW01 | Invention patent application withdrawn after publication |