CN101589717B - Sustained-release synergistic avermectin microemulsion for paddy rice - Google Patents
Sustained-release synergistic avermectin microemulsion for paddy rice Download PDFInfo
- Publication number
- CN101589717B CN101589717B CN2009100326005A CN200910032600A CN101589717B CN 101589717 B CN101589717 B CN 101589717B CN 2009100326005 A CN2009100326005 A CN 2009100326005A CN 200910032600 A CN200910032600 A CN 200910032600A CN 101589717 B CN101589717 B CN 101589717B
- Authority
- CN
- China
- Prior art keywords
- avermectin
- surface tension
- microemulsion
- sustained
- paddy rice
- 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.)
- Active
Links
Images
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a sustained-release synergistic avermectin microemulsion for paddy rice, which is prepared by combining avermectin, an organic solvent, calcium dodecyl benzene sulfonate, alkylphenol polyoxyethylene (10) ether, polyoxyethylene (20) sorbitan fatty acid ester, a surface tension synergistic agent, a photostabilizer, an antifreezing agent and dilution water according to certain mass ratio, wherein the surface tension synergistic agent consists of oxethyl modified poly-trisiloxane, mineral oil and azone. The sustained-release synergistic avermectin microemulsion reasonably uses ionic and nonionic surfactants to perform scientific preparation with n avermectin solution, the surface tension synergistic agent, the photostabilizer, the antifreezing agent and water to form a stable oil-in-water emulsion, and the emulsion can be wetted and spread quickly after being sprayed to rice leaves by a sprayer so as to improve the drug-holding quantity of target plants, enhance the drug effect, reduce pesticide usage amount, ensure the control effect of destructive pests, and reduce the pollution of pesticides to the environment .
Description
Technical field
The present invention establishes and a kind of micro-emulsion insecticide of preventing and treating rice grub, particularly a kind of can be at the wetting spread of paddy rice leaf surface, slow down the synergistic avermectin microemulsion of photodissociation.
Background technology
AVM is one type of ten hexa-atomic Macrocyclic lactone compounds that have desinsection, kill mite, eelworm-killing activity that Japanese Kitasato Kenkyusho (JP) 9-1, Shirokane 5-chome, Minato-ku, Tokyo 108, Japan and Merck company at first develop, and extracts the metabolite that separates by streptomycete (Streptomycesavermitilis) fermentation back.AVM put goods on the market as agricultural chemicals in 1985, and up to the present, AVM control spectrum comprises that insects such as Acarina, coleoptera, Homoptera and Lepidoptera, the evil mite in the arthropods has 84 kinds more than at least.This insecticide utmost point is insoluble in water, and commercially available majority is the missible oil formulation, and aromatic solvent wherein exists that environmental pollution is serious, poisoning is big, produce the uneasy congruent shortcoming of storing, has limited use in some countries.10mg/L registration amount with AVM control diamond-back moth and beet armyworm in the agricultural chemicals electronic documentation of the Ministry of Agriculture is reference; The AVM preparation that China produces is when concentration is 10mg/L; The surface tension of its solution all is far longer than the critical surface tension 36.7mN/m of paddy rice, is difficult to wetting spread on rice leaf well, and most soups that spray tumble with the form of drop; Reduced the probability that insect contacts with soup; Most of soups flow in the environment, increased environment degraded pressure, polluted environment, the huge waste that has caused resource is (referring to document 1; " some soup difficulties are in the analysis of causes of paddy rice, wheat and the wetting spread of wild cabbage " Pesticide Science journal, Vol.4 No.2 (2002) is p.75-80).Simultaneously, AVM sees that light can decompose rapidly through oxidation and photooxidation mechanism, and under the simulated solar irradiation, the photodissociation half life period is about 18.84h-59.24h, and the light degradation half life period is 12h in the water; In soil, the illumination degrading half life period be 21h (referring to document 2, " Determination of sunscreen compounds in tropicalsunscreen product " Chromatoggraphy, Vol.519 (1999), p.117-124; Document 3, " synergistic effect that ultraviolet absorber suppresses the AVM photodissociation and diamond-back moth is prevented and treated " ecological magazine, Vol.25 No.2 (2006), p.185-188).Be the peak period of paddy rice medication August-October; AVM uses the back to form the medicine film; Under solar light irradiation, (be mainly ultraviolet ray), improved the photodissociation speed of AVM greatly, make that the land for growing field crops lasting period short; Increase peasant's medication number of times and unit control cost virtually, thereby cause it to promote difficulty in the land for growing field crops.
AVM is a kind of biopesticide, induces insect to develop immunity to drugs more easily than chemical pesticide.In agricultural chemicals, add in general mineral oil, azone, outstanding imitate sharp or other surface tension synergist help improving soup to the insect cuticle penetrance (referring to document 4; " bleeding agent is to beta-cypermethrin virulence and three kinds of lepidoptera pest epicuticle ultrastructure effects " insect journal; Vol.51No.2 (2008), p.216-221; Document 5, " 3 kinds of auxiliary agents are to the synergistic effect of beta-cypermethrin " Jiangsu agricultural journal, Vol.24 No.6 (2008) p.820-825), thereby reduces dosage, improves control efficiency, and helps overcoming the pesticide resistance that insect produces medicament.Simultaneously very easily add light stabilizer in the agricultural chemicals of photodissociation, reduce the decomposition rate after AVM forms the medicine film, delay the rate of release of AVM, thereby improve the photostability of AVM preparation, improve drug effect at AVM etc.
Critical surface tension is the most important empirical parameter that characterizes low-energy solid moistened surface character; As long as surface tension be equal to or less than the liquid of critical surface tension could be on this solid spontaneous sprawling (referring to document 4, " surfactant science and application " p.193-223).Surfactant can reduce the surface tension of liquid, and the surfactant concentration in the soup that field spray uses must just can make droplet held by the blade face rapidly above critical micelle concentration and stay.This just requires to select and rationally uses surfactant; Surface tension synergist, light stabilizer, AVM and water are mixed equably; Form stable water oil-packaging type micro-emulsion agent; Simultaneously its photostability strengthens, surface tension is less than the critical surface tension of paddy rice, and the surfactant in the soup is greater than critical micelle concentration, so as can be on paddy rice wetting spread; Increase the liquid holdup of rice leaf, under the prerequisite that reduces consumption of organic solvent and effective ingredient consumption, improve drug effect.
Up to the present, do not see that be used on the paddy rice can wetting well rice leaf, the preparation that can delay the AVM photodissociation simultaneously again comes out.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the deficiency of prior art, and a kind of sustained-release synergistic avermectin microemulsion that is used for paddy rice is provided, and realized modularization pipe row.
The technical solution adopted for the present invention to solve the technical problems is following: a kind of sustained-release synergistic avermectin microemulsion that is used for paddy rice is characterized in that being combined by its mass ratio by following component:
The component mass ratio
AVM: 1%-5%,
Organic solvent: 10%-40%,
Calcium dodecyl benzene sulfonate: 0.8%-2.5%,
Alkylphenol-polyethenoxy (10) ether: 1%-5%,
Polyoxyethylene (20) sorbitan fatty acid ester: 1%-7.5%,
Surface tension synergist: 1.5%-5%,
Light stabilizer: 0.4%-2%,
Antifreezing agent: 1%-2%,
Dilution water: surplus,
Wherein, described surface tension synergist is mixed by first boosting components, second boosting components, and said first boosting components is the outstanding profit of imitating, and second boosting components is one or more in mineral oil, azone, the piperonyl butoxide;
Described light stabilizer is one or more the mixture in butylhydroxy anisole, ditert-butylhydro quinone, vitamin C, the dibutyl hydroxy toluene.
The method for using of avermectin micro-emulsion of the present invention is following: according to actual needs to microemulsion thin up of the present invention; But the least concentration of AVM is 8.91mg/L; Can bring into play its drug effect well in order to make avermectin micro-emulsion avermectin micro-emulsion of the present invention; Can save consumption again, recommend to use the concentration of AVM to be 9mg/L-90mg/L.During use, with sprayer avermectin micro-emulsion of the present invention is sprayed onto on the rice plant blade and gets final product.
Beneficial effect of the present invention is following:
One, rationally uses ion-type and nonionic surface active agent, carry out the science preparation, form the emulsion of stable oil-in-water type with abamectin solution, surface tension synergist, light stabilizer, antifreezing agent and water.Experiment shows: when the concentration of AVM in the microemulsion was 8.91mg/L, the surface tension of soup no longer changed, and was 23.94mN/m.And the critical surface tension of the target plant paddy rice that the present invention is suitable for is 36.7mN/m.Therefore, as long as the concentration of AVM is greater than 8.91mg/L among the present invention, its surface tension is just less than the critical surface tension of paddy rice; Can wetting soon spread behind the rice leaf through atomizers spray; Improve the dose of holding of target plant, strengthen drug effect, reduce the agricultural chemicals usage amount; Guarantee control efficiency, reduce the pollution of agricultural chemicals environment to insect;
Two,, find that light stabilizer can delay the photolysis speed of AVM, thereby the lasting period of having improved AVM reduces the agricultural chemicals usage amount through the decomposition rate of research AVM to light.Even the intense light irradiation weather in August-October also can use by aforesaid method, thereby avoids AVM to lose efficacy because of intense light irradiation.
Three, storage and transportation are convenient in the stable performance of avermectin micro-emulsion of the present invention, can at room temperature preserve 2 years;
Four, the field use can be according to the actual conditions dilute with water, preparation and easy to use.
Description of drawings
Fig. 1 is the photodissociation Test Drawing of AVM under uviol lamp.
20-30 ℃ of photolysis chamber control room temperature, adopt the artificial light source uviol lamp to shine, carry out sample detecting respectively at irradiation back 1h, 2h, 4h, 8h, 16h, 24h.As can be seen from Figure 1 the photodissociation of AVM meets first _ order kinetics equation, C
t=76.881e
-0.1708t(R
2=0.9969), the photodissociation half life period is 2.46h, and the photodissociation process of adding light stabilizer 1 and light stabilizer 2 also meets first _ order kinetics equation, and its equation is respectively C
t=79.093e
-0.0841t(R
2=0.9940), the photodissociation half life period is 3.17h and C
t=89.622e
-0.0494t(R
2=0.9957), the photodissociation half life period is 3.70h.The interpolation of light stabilizer makes the photodissociation half life period of AVM prolong 28.86% and 50.41% respectively.
Fig. 2 is the coordinate diagram that concerns that the method for surfactant critical micelle concentration and the mensuration critical surface tension value that proposes according to Zisman is measured the paddy rice critical surface tension in the surface tension, soup of the synergistic avermectin microemulsion variable concentrations soup of the present invention measured according to the method for GB-5549-90.
As can be seen from Figure 2, when AVM concentration was 8.91mg/L, the surfactant in the microemulsion soup had reached critical micelle concentration.Therefore the concentration that needs only avermectin micro-emulsion of the present invention is greater than 8.91mg/L, and the surfactant concentration in the soup has just surpassed critical micelle concentration, and the surface tension of soup is less than the critical surface tension of rice leaf.The present invention recommends the AVM concentration 9mg/L-90mg/L that uses, and this moment, soup can wetting well spread on rice leaf, can give full play to drug effect, can save medication again.
Embodiment
With reference to the accompanying drawings and combine instance that the present invention is described in further detail.But the invention is not restricted to given example.
The present invention provides composition embodiment 1-12; Referring to table 1-table 4; Wherein the surface tension synergist is mixed by first boosting components, second boosting components; First boosting components is the outstanding profit of imitating, and second boosting components is one or both of mineral oil, azone, and the mass ratio of first boosting components and second boosting components is 0.5～9: 1.
The present invention gives avermectin micro-emulsion and the comparison (table 5) of holding dose of abamectin emulsifiable concentrate on rice leaf, the concentration that from table, can find out 1.8% avermectin micro-emulsion 5.63mg/L-90mg/L on the paddy rice hold dose all the utmost point be significantly higher than 1.8% abamectin emulsifiable concentrate 10mg/L and on paddy rice, hold dose.Table 6, table 7 be respectively 1.8% avermectin micro-emulsion to rice-stem borer and 5% avermectin micro-emulsion to the drug effect of rice leaf roller relatively (converting water 750kg spray application) by per hectare, can find out that therefrom avermectin micro-emulsion tests the drug effect of used dosage and all be superior to abamectin emulsifiable concentrate.
Table 1
Table 2
Table 3
Table 4
The retention volume of table 5 1.8% avermectin micro-emulsion on rice leaf
Annotate: data are mean+SD in the table, and the lowercase of back and capitalization are illustrated respectively in the significance of difference on 0.05 and 0.01 level.(down together)
Table 6 1.8% avermectin micro-emulsion is to the control efficiency of striped rice borer
2008.06 Gaochun
Table 7 5% avermectin micro-emulsion is to the control efficiency of rice leaf roller
2008.08 Gaochun
Claims (3)
1. sustained-release synergistic avermectin microemulsion that is used for paddy rice is characterized in that being combined by its mass ratio by following component:
The component mass ratio
AVM: 1%-5%,
Organic solvent: 10%-40%,
Calcium dodecyl benzene sulfonate: 0.8%-2.5%,
Alkylphenol-polyethenoxy (10) ether: 1%-5%,
Polyoxyethylene (20) sorbitan fatty acid ester: 1%-7.5%,
Surface tension synergist: 1.5%-5%,
Light stabilizer: 0.4%-2%,
Antifreezing agent: 1%-2%,
Dilution water: surplus,
Wherein, described surface tension synergist is mixed by first boosting components, second boosting components, and said first boosting components is the outstanding profit of imitating, and second boosting components is one or both of mineral oil, azone;
Described light stabilizer is one or more the mixture in butylhydroxy anisole, ditert-butylhydro quinone, vitamin C, the dibutyl hydroxy toluene;
Described organic solvent is one or more the mixture in cyclohexanone and methyl alcohol, ethanol, propyl alcohol, isopropyl alcohol, butanols, isobutanol, acetone, ethyl acetate, dimethyl formamide, the xylol.
2. the sustained-release synergistic avermectin microemulsion that is used for paddy rice according to claim 1 is characterized in that described antifreezing agent is an ethylene glycol.
3. the sustained-release synergistic avermectin microemulsion that is used for paddy rice according to claim 2 is characterized in that, in the described surface tension synergist, the mass ratio of first boosting components and second boosting components is 0.5～9:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100326005A CN101589717B (en) | 2009-07-02 | 2009-07-02 | Sustained-release synergistic avermectin microemulsion for paddy rice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100326005A CN101589717B (en) | 2009-07-02 | 2009-07-02 | Sustained-release synergistic avermectin microemulsion for paddy rice |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101589717A CN101589717A (en) | 2009-12-02 |
| CN101589717B true CN101589717B (en) | 2012-08-22 |
Family
ID=41404746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100326005A Active CN101589717B (en) | 2009-07-02 | 2009-07-02 | Sustained-release synergistic avermectin microemulsion for paddy rice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101589717B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102132698A (en) * | 2010-01-21 | 2011-07-27 | 中化化工科学技术研究总院 | Green solvent for pesticide and application of green solvent |
| CN102450253A (en) * | 2010-10-15 | 2012-05-16 | 华北制药集团爱诺有限公司 | Avermectin suspension concentrate and preparation method thereof |
| CN105410026B (en) * | 2015-12-28 | 2018-07-03 | 浙江农林大学 | Prevent Pesticidal combination of Bemisia tabaci and application thereof |
| CN109452269B (en) * | 2018-12-21 | 2021-06-01 | 硅羿科技（上海）有限公司 | Abamectin emulsion preparation and preparation method and application thereof |
| CN111374127A (en) * | 2020-02-28 | 2020-07-07 | 安徽瑞然生物药肥科技有限公司 | Low-volatility coated insecticidal abamectin composition |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1555699A (en) * | 2004-01-08 | 2004-12-22 | 金中北 | Aqueous emulsion green pesticide and its formula design and preparation method |
| CN1586199A (en) * | 2004-07-19 | 2005-03-02 | 马韵升 | High concentration abamectin pest killing micro emulsion |
| CN101268778A (en) * | 2008-04-28 | 2008-09-24 | 淮安市农业科学研究院 | Photostable avermectin composition and preparation thereof |
-
2009
- 2009-07-02 CN CN2009100326005A patent/CN101589717B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1555699A (en) * | 2004-01-08 | 2004-12-22 | 金中北 | Aqueous emulsion green pesticide and its formula design and preparation method |
| CN1586199A (en) * | 2004-07-19 | 2005-03-02 | 马韵升 | High concentration abamectin pest killing micro emulsion |
| CN101268778A (en) * | 2008-04-28 | 2008-09-24 | 淮安市农业科学研究院 | Photostable avermectin composition and preparation thereof |
Non-Patent Citations (2)
| Title |
|---|
| 吴传万等.阿维菌素光分解及其光稳定剂的筛选.《农药》.2006,第45卷(第12期), * |
| 石伟山等.3种助剂对高效氯氰菊酯的增效作用.《江苏农业学报》.2008,第24卷(第6期), * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101589717A (en) | 2009-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101589717B (en) | Sustained-release synergistic avermectin microemulsion for paddy rice | |
| CN101589722A (en) | Insecticides of a kind of chloride worm benzamide and its production and use | |
| CN101066055A (en) | Pesticide composition containing emamectin benzoate | |
| CN102273440A (en) | Ultralow volume liquid containing clothianidin | |
| Zhu et al. | Photodegradation of emamectin benzoate and its influence on efficacy against the rice stem borer, Chilo suppressalis | |
| CN103355319A (en) | Insecticidal composition containing pyridalyl and biological source | |
| CN101133738A (en) | Insecticidal composition containing fipronil for corps | |
| CN104957161A (en) | Microemulsion containing emamectin benzoate and lufenuron | |
| CN108294000A (en) | A kind of Pesticidal combination of brominated worm fluorobenzene bisamide and methoxyfenozide | |
| CN102228056B (en) | Pesticide composition containing sulfur-fluorine oxime ether and part of organophosphorus pesticides | |
| CN102228044B (en) | Insecticidal composition containing sufluoxime | |
| CN102232385A (en) | Insecticidal composition containing clothianidin and abamectin | |
| CN101554158B (en) | Emamectin-benzoate and methomyl microemulsion and preparation method thereof | |
| CN101480177B (en) | Aqueous emulsion containing bamboo vinegar pesticide as well as preparation method and use thereof | |
| CN102960353A (en) | Insecticidal and acaricidal composition containing metaflumizone and flufenzine | |
| CN101422155B (en) | Insecticide and miticide composition | |
| CN102210320A (en) | Sulfoxaflor-containing insecticidal composition | |
| CN102246778A (en) | Efficiency enhanced insecticidal composition, and application thereof | |
| CN102217611A (en) | Milbemycins tree trunk injection liquid and application thereof | |
| CN101194621B (en) | Mixed pesticide preparation of tubatoxin and butyl ether urea | |
| CN102550581A (en) | Ultralow-volume concentrate containing chlorfluazuron | |
| CN103125501A (en) | Abamectin-spinosad emulsion in water and preparing method thereof | |
| CN102318636A (en) | A kind of Synergistic insecticidal compositions | |
| CN101961009B (en) | Flubendiamide insecticidal microemulsion and preparation method thereof | |
| Weinberger et al. | Some adjuvant effects on the fate of fenitrothion and aminocarb |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |