CN102365950B - Chitosan oligosaccharide-containing composition for controlling acarid, and application and method thereof - Google Patents
Chitosan oligosaccharide-containing composition for controlling acarid, and application and method thereof Download PDFInfo
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- CN102365950B CN102365950B CN2011103332486A CN201110333248A CN102365950B CN 102365950 B CN102365950 B CN 102365950B CN 2011103332486 A CN2011103332486 A CN 2011103332486A CN 201110333248 A CN201110333248 A CN 201110333248A CN 102365950 B CN102365950 B CN 102365950B
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- chitosan oligosaccharide
- miticide
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- mite
- acaricidal
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- RQFQJYYMBWVMQG-IXDPLRRUSA-N chitotriose Chemical compound O[C@@H]1[C@@H](N)[C@H](O)O[C@H](CO)[C@H]1O[C@H]1[C@H](N)[C@@H](O)[C@H](O[C@H]2[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O2)N)[C@@H](CO)O1 RQFQJYYMBWVMQG-IXDPLRRUSA-N 0.000 title claims abstract description 55
- 239000000203 mixture Substances 0.000 title claims abstract description 44
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- 239000000642 acaricide Substances 0.000 claims abstract description 42
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- 239000005661 Hexythiazox Substances 0.000 claims description 6
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- AAILEWXSEQLMNI-UHFFFAOYSA-N 1h-pyridazin-6-one Chemical compound OC1=CC=CN=N1 AAILEWXSEQLMNI-UHFFFAOYSA-N 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a chitosan oligosaccharide-containing composition for controlling acarid, and application and a method thereof. The composition comprises acaricide and chitosan oligosaccharide, wherein, the weight ratio of chitosan oligosaccharide to acaricide is 1:0.025-40. According to the invention, chitosan oligosaccharide can be in compound application with acaricide, thereby inhibiting acarid, improving acaricidal activity, enhancing crop stress resistance and producing the effects of diseases prevention and growth promotion. Addition of acaricide into chitosan oligosaccharide enables the acaricidal effect of acaricide to be improved and growth of crops to be promoted.
Description
Technical field
The invention belongs to the agricultural chemicals field, particularly relate to the purposes of a kind of miticide that contains chitosan oligosaccharide and preparation method thereof and the underground acarid of control.
Background technology
Present miticide major part has extremely mite and the characteristic of killing mite concurrently, and present miticide kind is many, and for example alkynes mite spy has and tags and stomach poison function, to become, if mite is effective, kill the ovum weak effect, when temperature was more than 20 ℃, drug effect can improve.The tender tip of citrus is had poisoning, the sweet orange young fruit is also had poisoning, medication at high temperature be prone to produce sunscald to fruit, also can influence to move back near the umbilical region greenly, therefore, must not arbitrarily improve concentration during medication.Alkynes mite spy is not prone to resistance, one of kind that drug effect is comparatively stable in the present miticide.Decis is a kind of machine oil emulsion with the processing of Chinese wax machine oil, through sealing harmful mite pore, stops the physical action of laying eggs and changing evil mite trophic behaviour, reaches the purpose of other insect on control citrus red mite and the citrus.Green grain husk can effectively kill, if mite, but ovum is not had lethality.Notice that green grain husk must not use at high temperature and drought season.0.005%-0.009% pyridaben series medicament: various in style on the market, use in spring comparatively effective, because of using continuously all the year round, resistance clearly, can with green grain husk mixing use, thereby the raising preventive effect.The high-load preparation of 0.005%-0.009% AVM has control efficiency to two spotted spider mite, and leaf roller is had the double effect of controlling, and can be chosen in when leaf roller and two spotted spider mite are taken place the same period to use.The 0.005%-0.009% azacyclotin is the stronger miticide of action of contace poison, can kill into mite if mite and summer egg are invalid to winter egg.Azacyclotin has poisoning to the tender tip.Its drug effect depends on whether content and suspensibility reach standard.0.005%-0.009% Bristol gram is to be master's long-acting miticide to tag, and drug effect was better when 22 ℃ of temperature were above, to one-tenth, if mite lethality is strong; Little to ovum lethality; The efficacy of a drug discharges slowly behind the spray medicine, and increased activity after three days reached medicine in four days behind the medicine and puts the peak.Safer to mite class natural enemy.
At present the miticide of control acarid is many with the auxiliary agent that is used for mite extremely, with auxiliary agent that miticide mixes in, it is fewer to play effective auxiliary agent, especially natural and crop do not had poisoning and can promote the material of plant growth to lack especially.
Inventor of the present invention is through the discovery that studies for a long period of time, and chitosan oligosaccharide and miticide mixed applying can improve acaricidal miticidal effect effectively, and when killing mite, can promote plant growth.
Summary of the invention
For solving the problems of the technologies described above, the present invention also provides a kind of significant miticide composition of synergistic effect that comprises chitosan oligosaccharide and uses thereof and method for using.
Concrete, the invention provides a kind of miticide composition that improves the miticide miticidal effect, it is characterized in that in miticide composition, comprising chitosan oligosaccharide, the weight percentage that chitosan oligosaccharide accounts for miticide composition is 2-90%.
The purposes that the present invention also provides chitosan oligosaccharide to be used to improve acaricidal miticidal effect is characterized in that chitosan oligosaccharide and acaricidal weight ratio are: 1: 0.025-40.
Concrete, the invention provides a kind of agriculturally useful compositions of preventing and treating acarid, it is characterized in that said composition comprises miticide and chitosan oligosaccharide.
In the above-mentioned composition, preferably, chitosan oligosaccharide and acaricidal weight ratio are: 1: 0.05-20, and preferred, weight ratio is 1: 0.1-10.
Preferably, in the above-mentioned composition, the percentage that the quality summation of miticide and chitosan oligosaccharide accounts for the composition gross mass is 1-85%, and is preferred, accounts for 5-60%.
Preferably, above-mentioned composition can be made into preparations such as water dispersible granules, wetting powder, soluble powder, suspending agent or microemulsion.Preferably be prepared to water dispersible granules.In the various preparations that composition is prepared to, chitosan oligosaccharide and acaricidal ratio satisfy the described ratio of above-mentioned composition, and both quality summations account for the 1-85% of preparation gross mass, and be preferred, accounts for 5-60%.Can comprise other main frame and auxiliary material in the present composition; Auxiliary material such as wetting agent, emulsifier, disintegrant, filler and other are of value to the known substance of active ingredient stable and drug effect performance in preparation, all are the various compositions that permission commonly used in the pesticidal preparations is used.The processing technology of the various preparations of the present composition adopts known method preparation, is method commonly used in the pesticidal preparations processing technology.
The present invention also provides above-mentioned composition to be used to the method for preventing and treating acarid and promoting plant growth, it is characterized in that being applied on the crop that suffers acarid disease invasion and attack composition or in the soil of plant growth.
Preferably, in above-mentioned composition, method and the purposes, miticide is the pyridazinone miticide, like pyridaben, and organic sulfur class miticide; Like propargite, the organic tin miticide, like azacyclotin, fenbutatin oxide, the organic nitrogen miticide is like Amitraz, single carbonamidine; Phenoxy group pyrazoles miticide, like azoles mite ester, thiazolidine ketone miticide is like Hexythiazox; Growth regulator class miticide, many like flufenoxuron, mite prestige, antibiotics is like AVM.
Preferably, miticide is in many one or more of pyridaben, propargite, azacyclotin, fenbutatin oxide, Amitraz, single carbonamidine, azoles mite ester, Hexythiazox, flufenoxuron, mite prestige.
Chitosan oligosaccharide and the acaricidal composition of comprising of the present invention can be applied in any crop that suffers the acarid infringement, and these crops include but not limited to cereal crops, vegetables and forest etc., particularly; Cereal crops such as peanut, corn, paddy rice, soybean, Chinese sorghum, wheat, vegetables such as cucumber, tomato; Celery, spinach, Chinese cabbage; Beet, capsicum etc., forest such as banana tree, willow, pine tree, cypress, cocoanut tree, bamboo grows etc.Can also be tobacco, potato, oranges and tangerines etc.
Of the present inventionly comprising chitosan oligosaccharide and acaricidal composition can be prevented and treated any acarid, preferably, is the acarid of damage to crops growth on the agricultural.Preferably, acarid such as Tetranychus cinnabarinus, tetranychus viennensis, panonychus ulmi, panonychus citri, petrobia latens, tangerine goitre mite, phyllocoptruta oleivora, yellow tea mite etc.
Among the present invention, chitosan oligosaccharide is that Glucosamine passes through 1, and the degree of polymerization that the 4-glycosidic bond is formed by connecting is the mixture of the high molecular polymer of 2-30, and mean molecule quantity is 1000-3000 dalton.Chitosan oligosaccharide can be through any means preparation, and for example following method: deacetylation is the mixture of the chitosan oligomer of 2-30 at the shitosan more than 70% through the degree of polymerization that methods such as mechanical degradation method, chemical degradation method, enzyme edman degradation Edman, glycosyl transfer method, composite degradation method prepare.Perhaps, be the mixture of the chitosan oligomer of 2-30 through from fungal cell wall or insect body wall, extracting the natural chitin obtain and the degree of polymerization for preparing through methods such as mechanical degradation method, chemical degradation method, enzyme edman degradation Edman, glycosyl transfer method, composite degradation methods.Perhaps, through passing through 1 by Glucosamine, the degree of polymerization that the chemosynthesis of 4-glycosidic bond is polymerized is the mixture of polymers of 2-30.Chitosan oligosaccharide is the mixture of the high molecular polymer of various polymerization thing at present, that is to say in the chitosan oligosaccharide to be not the oligosaccharides form of the single degree of polymerization, but the chitosan oligosaccharide monose of every kind of degree of polymerization possibly exist all.So no matter prepare through which kind of method; The commercially available prod that perhaps prepares through above-mentioned preparation method, as long as it is that Glucosamine passes through 1, the degree of polymerization that the 4-glycosidic bond is formed by connecting is that 2-30, mean molecule quantity are that the mixture of the daltonian high molecular polymer of 1000-3000 is exactly a chitosan oligosaccharide of the present invention; It can contain acetyl group; But the sugar unit of bonding acetyl group is no more than 40% amount, preferably is no more than 30% amount, especially preferably is no more than 20% amount.Commercially available chitosan oligosaccharide all is the chitosan oligosaccharide product that above-mentioned chitosan oligosaccharide term is set forth basically at present.
Advantage of the present invention:
1, the present composition has improved the indoor acaricidal activity to acarid through miticide and chitosan oligosaccharide are used with, has played beyond thought synergistic effect.
2, thereby chitosan oligosaccharide can suppress acarid with composite the using of miticide, improves acaricidal activity, and can improve crop anti-adversity, has diseases prevention and growth promotion effect.After adding chitosan oligosaccharide in the miticide, make miticide kill the effect promoting of mite, promoted the growth of crop simultaneously.
Embodiment
In order to understand the present invention, further specify the present invention with embodiment below, but do not limit the present invention.
Below in conjunction with embodiment the present invention is described further, but the present invention never is limited to following embodiment.The following stated only is used to explain the present invention, for not departing from modification, replacement or the improvement that the present invention's spirit and principle are made, all belongs to the scope of requirement protection of the present invention.
Embodiment 1 contains the biological activity determination of chitosan oligosaccharide and acaricidal composition
With the agent of chitosan oligosaccharide list, the agent of miticide list, and the chitosan oligosaccharide and the acaricidal composition of certain mass ratio be diluted to finite concentration, be applied to citrus red mite then respectively, measure respectively and respectively supply reagent agent lethal concentration of 50 LC
50, according to the co-toxicity coefficient of each confection of co-toxicity coefficient computing formula calculating, result such as following table 1:
Different composite dose of the synergistic effects of table 1 to citrus red mite
| Medicament | Proportioning | LC 50(mg/L) | Co-toxicity coefficient |
| Pyridaben | - | 13.74 | - |
| Propargite | - | 220.15 | - |
| Azacyclotin | - | 75.26 | - |
| Fenbutatin oxide | - | 78.94 | - |
| Amitraz | - | 68.54 | - |
| Single carbonamidine | - | 168.52 | - |
| Azoles mite ester | - | 17.32 | - |
| Hexythiazox | - | 14.55 | - |
| Flufenoxuron | - | 26.77 | - |
| The mite prestige is many | - | 57.24 | - |
| Chitosan oligosaccharide | - | 2144.25 | - |
| Chitosan oligosaccharide: pyridaben | 1∶40 | 10.25 | 137.38 |
| Chitosan oligosaccharide: propargite | 1∶1 | 280.26 | 142.48 |
| Chitosan oligosaccharide: azacyclotin | 1∶5 | 68.34 | 131.23 |
| Chitosan oligosaccharide: fenbutatin oxide | 5∶1 | 280.36 | 142.38 |
| Chitosan oligosaccharide: Amitraz | 5∶2 | 142.36 | 156.04 |
| Chitosan oligosaccharide: single carbonamidine | 40∶1 | 1125.50 | 148.15 |
| Chitosan oligosaccharide: azoles mite ester | 10∶1 | 138.55 | 127.23 |
| Chitosan oligosaccharide: Hexythiazox | 10∶1 | 102.36 | 146.42 |
| Chitosan oligosaccharide: flufenoxuron | 1∶10 | 23.56 | 124.83 |
| Chitosan oligosaccharide: the mite prestige is many | 1∶10 | 38.56 | 162.85 |
Can find out by table 1; Chitosan oligosaccharide is far longer than 120 with the composite co-toxicity coefficient to citrus red mite of different miticides; Explain that chitosan oligosaccharide has increased acaricidal miticidal effect in the composition, and through to the observation of the upgrowth situation of crop, not only miticidal effect is obvious to have added the miticide of chitosan oligosaccharide; And used growing fine of the crop that comprises the chitosan oligosaccharide composition, output increases.
Claims (6)
1. chitosan oligosaccharide is used to improve the purposes of acaricidal miticidal effect; It is characterized in that chitosan oligosaccharide and acaricidal weight ratio are: 1:0.025-40, wherein miticide is in many one or more of pyridaben, propargite, azacyclotin, fenbutatin oxide, Amitraz, single carbonamidine, azoles mite ester, Hexythiazox, flufenoxuron, mite prestige.
2. agriculturally useful compositions of preventing and treating acarid; It is characterized in that; Said composition comprises miticide and chitosan oligosaccharide; Chitosan oligosaccharide and acaricidal weight ratio are: 1:0.05-20, wherein miticide is in many one or more of pyridaben, propargite, azacyclotin, fenbutatin oxide, Amitraz, single carbonamidine, azoles mite ester, Hexythiazox, flufenoxuron, mite prestige.
3. agriculturally useful compositions according to claim 2 is characterized in that chitosan oligosaccharide and acaricidal weight ratio are 1:0.1-10.
4. composition according to claim 3, wherein to account for the percentage of composition gross mass be 1-85% to the quality summation of miticide and chitosan oligosaccharide.
5. composition according to claim 4, wherein to account for the percentage of composition gross mass be 5-60% to the quality summation of miticide and chitosan oligosaccharide.
6. each described composition of claim 2-5 is used to the method for preventing and treating acarid and promoting plant growth, it is characterized in that being applied on the crop that suffers the invasion and attack of acarid disease composition or in the soil of plant growth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103332486A CN102365950B (en) | 2011-10-28 | 2011-10-28 | Chitosan oligosaccharide-containing composition for controlling acarid, and application and method thereof |
Applications Claiming Priority (1)
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|---|---|---|---|---|
| US6093682A (en) * | 1999-03-19 | 2000-07-25 | American Cyanamid Company | Solid agricultural composition comprising a monosaccharide, an oligosaccharide and/or a polysaccharide |
| CN1511452A (en) * | 2002-12-30 | 2004-07-14 | 高希武 | Agricultural compositino for preventing and controlling nematode and its preparing method and use |
| CN101352176A (en) * | 2007-07-23 | 2009-01-28 | 么向和 | Compound avermectin |
| CN101816305A (en) * | 2010-05-09 | 2010-09-01 | 海南正业中农高科股份有限公司 | Bactericide pesticide composite containing oligochitosan |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6093682A (en) * | 1999-03-19 | 2000-07-25 | American Cyanamid Company | Solid agricultural composition comprising a monosaccharide, an oligosaccharide and/or a polysaccharide |
| CN1511452A (en) * | 2002-12-30 | 2004-07-14 | 高希武 | Agricultural compositino for preventing and controlling nematode and its preparing method and use |
| CN101352176A (en) * | 2007-07-23 | 2009-01-28 | 么向和 | Compound avermectin |
| CN101816305A (en) * | 2010-05-09 | 2010-09-01 | 海南正业中农高科股份有限公司 | Bactericide pesticide composite containing oligochitosan |
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