CN102972409A - Seedling-protection micro-emulsion - Google Patents
Seedling-protection micro-emulsion Download PDFInfo
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- CN102972409A CN102972409A CN2012105257959A CN201210525795A CN102972409A CN 102972409 A CN102972409 A CN 102972409A CN 2012105257959 A CN2012105257959 A CN 2012105257959A CN 201210525795 A CN201210525795 A CN 201210525795A CN 102972409 A CN102972409 A CN 102972409A
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Abstract
The invention relates to a pesticide water-based preparation and in particular relates to a pesticide micro-emulsion. The seedling-protection micro-emulsion consists of the following components by weight percent: 6% of tebuconazole, 7-10% of synergist, 9-12% of hypertonic agent, 4-6% of safener, 1-3% of assistant, and the balance of water, wherein the synergist is pesticide emulsion 602# or pesticide emulsion 700#, the hypertonic agent is cyclohexanone and nonyl phenol polyoxyethylene ether, the safener consists of glycol, quadrol and glycerol, and the assistant is ethanol and isopropanol. The invention provides the high-efficiency, safe and environment-friendly pesticide micro-emulsion; the tebuconazole pesticide micro emulsion provided by the invention only utilizes a small quantity of organic solvent, includes a proper amount of surfactant and other assistants, excludes toxic and flammable aromatic hydrocarbon solvents, is transparent single-phase liquid, and belongs to a green pesticide preparation.
Description
Technical field
The present invention relates to a kind of water-based pesticide preparation, more specifically relate to a kind of microemulsion.
Background technology
Rice blast has another name called rice blast, burns pest, the pest of kowtowing, and is worldwide fungal disease.Pathogen sexual generation is Magnaporthe grisea Barr. (only produces under artificial the cultivation, not yet find under the natural conditions), and asexual generation is pyriculariaoryzae Cav.Belong to Deuteromycotina Coniosporium fungi.One of the most serious rice disease of China north and south rice workspace harm, with banded sclerotial blight, bacterial leaf-blight and claim paddy rice three large diseases.General mountain area overweights the Plain.Obvious to rice blast resistance difference between kind.Main harm rice leaf, stem stalk, fringe section.Because the period of causing harm is different with the position, be divided into again seedling pest, leaf pest, joint pest, panicle blast and grain pest.This disease generally causes the underproduction 10%～20%, and heavy reaches 40%～50%, even No kernels or seeds are gathered, as in a year of scarcity.
The control of rice blast
One, selects disease-resistant or anti-sick fine quality, strengthen cultivation management, improve rice strain premunition.
Two, grasp the key link, spray medicine prevention and treatment in good time, principle is early to grab the leaf pest, and radical cure fringe pest are carried out the conventional prevention system of fringe pest
1, leaf pest: will strengthen field examination in the rice tillering phase of containing, the in great numbers and previous year rice blast of growing way is retransmitted the district and more will be strengthened, and when finding the infection center blockade of should going and buy Chinese medicine immediately, can select the therapeutic medicaments such as " Fujione ", " making hectogram ".As occurring the acute scab on the blade, particularly day by day increase, if weather forecast will have rainy weather, also reply is not carried out the large tracts of land prevention in the plot of morbidity, can select the prevention such as " tricyclazole " medicament, and suitable dry field.
2, fringe pest: because of the present kind that does not also have high resistant to rice blast, so, at heading stage wet weather or long-time low temperature are arranged such as weather forecast, should carry out immediately the medicament prevention in the cut phase, can select " tricyclazole " class medicament, use 2～3 times at interval 7 days.
3, medicament uses:
⑴ 20% tricyclazole wettable powder: the protective fungicide that interior absorption can be stronger can be absorbed, and be transported to each one of rice strain by rice root, stem, leaf rapidly.But this medicine uses before need resting in infection process, and typical concentrations is 1000 times of liquid, and mu restrains with amount of formulation 50～75.
⑵ 40% Fujione missible oil or 40% wetting powder: preventive and therapeutic action is arranged, can be used for leaf pest initial phase and early prevention, 1000 times of liquid of typical concentrations, mu 60～75 milliliters of amount of formulation (gram).
At present, control rice warm disease still relies on chemical agent and plantation disease-resistant variety, and owing to throughout the year plantation of the disease-resistant variety of cultivating loses resistance, the use of conventional dose causes that also rice warm disease bacterium produces resistance, thereby causes the rice blast control efficiency not good.Show according to the study, since 20 century 70 Japan Report Pyricularia oryzaes develop immunity to drugs to kasugarnycin, successively reported that Pyricularia oryzae has produced pesticide resistance to Isoprothiolane and tricyclazole both at home and abroad.Therefore, the agricultural chemicals of research and development controls rice blast has great importance to the resistance that improves control efficiency, delays rice warm disease bacterium.
Summary of the invention
The present invention provide in order to address the above problem a kind of efficient, safety, with the seedling-protection microemulsion of environment friendliness.
Seedling-protection microemulsion of the present invention, its composition of raw materials is by weight percentage: Tebuconazole 6%, synergist 7-10%, high osmotic agent 9-12%, safener 4-6%, auxiliary agent 1-3%, surplus is water.
Described synergist is phenethyl phenol polyethenoxy ether farming newborn 602#, alkyl phenol formaldehyde resin polyoxyethylene ether Nongru-700 #;
Described high osmotic agent is cyclohexanone, polyoxyethylene nonylphenol ether such as NP-10;
Described safener is ethylene glycol, ethylenediamine, glycerine;
Described auxiliary agent is ethanol, isopropyl alcohol.
Preferably, the composition of raw materials of described seedling-protection microemulsion, be by weight percentage: Original Tebuconazole 6%, agricultural newborn 602#5%, Nongru-700 #3%, cyclohexanone 7%, polyoxyethylene nonylphenol ether 3%, ethylene glycol 3%, ethylenediamine 1.2%, glycerine 0.8%, ethanol 1.3%, isopropyl alcohol 0.7%, surplus is water.
The seedling-protection microemulsion, preparation method is after Original Tebuconazole and agricultural newborn 602#, Nongru-700 #, cyclohexanone, polyoxyethylene nonylphenol ether, ethylene glycol, ethylenediamine, glycerine, ethanol, isopropyl alcohol are mixed by formula rate and suitable quantity of water, add agitator pre-dispersed (2500 rev/mins of the speed of stirring, 60 minutes time), high shear (is sheared water adding and pre-dispersed oil phase, 2500 rev/mins of shear rates, 60 minutes time), continue the supplementing water constant volume, sheared again 60 minutes, and obtained finished product.
product of the present invention has stability of emulsion, and (sample dilutes 200 times with standard hard water, by GB/T 1603-2001, test, get this sample and dilute 200 times with standard hard water, liquid is standing 1h at temperature (30 ± 2) ℃, upper without oil slick, it is qualified that lower nothing is precipitated as), low-temperature stability (is undertaken by 2.2 regulations in GB/T 19137-2003, through mild agitation, without visible particle and grease, it is qualified to be), heat storage stability (is undertaken by 2.1 regulations in GB/T 19136-2003, sample is stored 14d under (54 ± 2) ℃, by the method for standard code, measure the relative rate of resolution of Tebuconazole, its relative rate of resolution all is not more than 5%, and suspensibility, it is qualified that viscosity also meets this standard, the heat storage stability pass the test), lasting foaming characteristic is (by in HG/T 2467.5-2003,4.11 testing, the graduated cylinder of known quality is added to standard hard water to 180mL graduation mark place, put graduated cylinder on balance, be weighed into the about 1.0g(of sample and be accurate to 0.1g), the graduation mark place that adds hard water distance measurements tube plug bottom 9cm, cover plug, centered by the graduated cylinder bottom, turn upside down 30 times (each 2s).Be placed on and leave standstill 1min on the testing stand, the record foam volume, this sampling test foaming characteristic≤30% is qualified), pH value measured value 6.9(acceptance value is 4.5-7.5), 0 ℃-50 ℃ of transparency temperature scopes.
Use the method for seedling-protection microemulsion to be: 1, formulation rate: 100 milliliters of every mu (666.7 square meter) each dispenser 6% tebuconazole microemulsions.2, dispenser period and number of times: ⑴ rice blast: control leaf pest can dispenser when the fragmentary scab of first meeting; Control panicle blast and fringe pest can be in (the 10-20% fringe tip the spue leaf sheath) dispensers of cut phase.⑵ paddy rice middle and later periods integrated disease chemical control overall plan: the Diseases at Medium-late Growths such as integrated control rice blast, oriental sesame leaf pinta, false smut, banded sclerotial blight should booting stage to full heading time dispenser 2 times, namely before the paddy rice cut 9-11 days the spray 1 time, fringe phase cut beginning sprays 1 time again.3, application method: can adopt the Aircraft equalization, or motor-driven mist sprayer, knapsack sprayer sprays.
Seedling-protection microemulsion particle diameter of the present invention is ultra-fine, and size ratio missible oil, wetting powder, aqueous emulsion, suspending agent and water dispersible granules are little, so penetration is fabulous, absorption ratio is high, and conductivity is extremely strong, significantly is better than the conventional diseases prevention medicament of present paddy rice; Fungicidal spectrum is wide, active high, and good drug efficacy without doing the property of medicine, is better than paddy rice bactericide commonly used to the control efficiency of the Rice Diseases at Medium-late Growths such as rice blast, banded sclerotial blight; Active ingredient is that Tebuconazole is safety, efficient triazole bactericidal agent, and stable chemical nature has excellent prevention and treatment double effects, lasting period 15-25 days, and can regulate paddy growth, and improve the yield and quality, fool proof to paddy rice.
Embodiment
Be most preferred embodiment of the present invention below, further describe the present invention, but the present invention be not limited only to this.
Embodiment 1: most preferred embodiment
The seedling-protection microemulsion, preparation method is with Original Tebuconazole and agricultural newborn 602#, Nongru-700 #, cyclohexanone, polyoxyethylene nonylphenol ether, ethylene glycol, ethylenediamine, glycerine, ethanol, isopropyl alcohol is by 6%, 5%, 3%, 7%, 3%, 3%, 1.2%, 0.8%, 1.3%, after 0.7% ratio and suitable quantity of water mix, add pre-dispersed (2500 rev/mins of the speed of stirring of agitator, 60 minutes time), high shear (is sheared water adding and pre-dispersed oil phase, 2500 rev/mins of shear rates, 60 minutes time), adjust and (continue supplementing water to standard content 69%, sheared again 60 minutes), check, metering packing obtains finished product.
Use the method for seedling-protection microemulsion to be: 1, formulation rate: 100 milliliters of every mu (666.7 square meter) each dispenser 6% tebuconazole microemulsions.2, dispenser period and number of times: ⑴ rice blast: control leaf pest can dispenser when the fragmentary scab of first meeting; Control panicle blast and fringe pest can be in (the 10-20% fringe tip the spue leaf sheath) dispensers of cut phase.⑵ paddy rice middle and later periods integrated disease chemical control overall plan: the Diseases at Medium-late Growths such as integrated control rice blast, oriental sesame leaf pinta, false smut, banded sclerotial blight should booting stage to full heading time dispenser 2 times, namely before the paddy rice cut 9-11 days the spray 1 time, fringe phase cut beginning sprays 1 time again.3, application method: can adopt the Aircraft equalization, or motor-driven mist sprayer, knapsack sprayer sprays.
Result of use:
Stability of emulsion:Get at random the finished product sample with 200 times of standard hard water dilutions, liquid leaves standstill 1h under temperature (30 ± 2) ℃, without oil slick, occurs without precipitation down on the result, for qualified.
2011, Fujian Province's Putian City Licheng District plant test station for plant protection is on Fengshan village, Huangshi town, Hui Xia village and peaceful village and other places early on 2000 mu in the rice field, use the present invention's 6% tebuconazole microemulsion control early rice middle and later periods rice blast, banded sclerotial blight experiment and demonstration, the result is shown in table 1,2:
Table 1 Tebuconazole control early rice middle and later periods banded sclerotial blight drug effect in July, 2011 kind: No. 8, platform round-grained rice
Table 2 Tebuconazole control early rice middle and later periods banded sclerotial blight drug effect in July, 2011 kind: No. 8, platform round-grained rice
Annotate: 2000 mu early experiment and demonstration district, rice field rice blast gently occur, the main disease that occurs is banded sclerotial blight.
6% tebuconazole microemulsion is effective to rice sheath blight disease controlling, rice crop is reached farmland ecological environment safety on every side, secondary medication preventive effect reaches 86.25% and 84.02%, need secondary medication control in the paddy rice middle and later periods, for the first time dial the joint phase in paddy rice, can arise from the paddy field cut phase with other insecticides one for the second time and prevent and treat once again.
2006, Agricultural University Of Hunan's technical college was used seedling-protection microemulsion control rice blast of the present invention test in rice test field, the two Jiangkou town of Hunan Province's Ningxiang County.The result is as shown in table 3:
Table 3 6% tebuconazole microemulsion control rice blast field control effectiveness test significance analysis table
Hunan Ningxiang County in September, 2006
Annotate: use the poor preventive effect significance of difference of carrying out of Deng Kenshi multipole and test, first preventive effect mean descending order is arranged, then put on alphabetical a at the mean of maximum, and this mean compared with each mean below it successively, the female a of the inapparent marking-ups of all difference is until somely differ with it significant mean and then be marked with alphabetical b.Take this mean that indicates b as standard, each compares all inapparent alphabetical b that also is marked with without exception than its large mean with the top again; Again take the maximum mean that indicates as standard, with the mean ratio of following each mark, allly inapparently continue to be marked with alphabetical b, until somely differ with it significant mean and then be marked with alphabetical c.So repeat down, until a minimum mean has had till the Reference character.
Like this between each mean, all have a mark same letter to be difference not remarkable, the different Reference character of all tools be significant difference.When practical application, generally with capitalization A.B.C ... expression=0.01 significance level is with lowercase a.b.c .... represent that 0.05 significance level is equal.
6% tebuconazole microemulsion 100ml/ mu is better to the preventive effect of rice blast, and control efficiency is more than 80%, and lasting effect is good, uses safety, but large scale application.
Demonstrate according to fields, ground such as three provinces in the northeast of China, Anhui Province, Hunan Province, Hebei province and Fujian Province, the result shows: 6% tebuconazole microemulsion 50mL/ mu spraying control rice blast, with 75 mL-100 mL/mu spraying control rice blast, preventive effect is at 70.14%-95.04%, and the lasting period is long.6% tebuconazole microemulsion also shows safety without poisoning to paddy rice.Recommendation 6% tebuconazole microemulsion is sprayed with the dosage of 75～100 mL/ mus in the production, the control rice blast.
Claims (2)
1. seedling-protection microemulsion, it is characterized in that: the composition of raw materials of described seedling-protection microemulsion is by weight percentage: Tebuconazole 6%, synergist 7-10%, high osmotic agent 9-12%, safener 4-6%, auxiliary agent 1-3%, surplus is water; Described synergist is agricultural newborn 602# and Nongru-700 #; Described high osmotic agent is cyclohexanone and polyoxyethylene nonylphenol ether; Described safener is ethylene glycol, ethylenediamine and glycerine; Described auxiliary agent is ethanol and isopropyl alcohol.
2. seedling-protection microemulsion, it is characterized in that: the composition of raw materials of described seedling-protection microemulsion, be by weight percentage: Original Tebuconazole 6%, agricultural newborn 602#5%, Nongru-700 #3%, cyclohexanone 7%, polyoxyethylene nonylphenol ether 3%, ethylene glycol 3%, ethylenediamine 1.2%, glycerine 0.8%, ethanol 1.3%, isopropyl alcohol 0.7%, surplus is water.
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| CN2012105257959A CN102972409A (en) | 2012-12-10 | 2012-12-10 | Seedling-protection micro-emulsion |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105076240A (en) * | 2015-08-10 | 2015-11-25 | 谢绪叶 | Bactericide containing tebuconazole and scutellaria baicalensis |
| CN114190391A (en) * | 2016-08-09 | 2022-03-18 | 大日本除虫菊株式会社 | Mildew preventive composition and mildew preventive method |
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| WO1998018321A1 (en) * | 1996-10-30 | 1998-05-07 | Troy Technology Corporation, Inc. | Microemulsion and method |
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| WO1998018321A1 (en) * | 1996-10-30 | 1998-05-07 | Troy Technology Corporation, Inc. | Microemulsion and method |
| RU2238649C1 (en) * | 2003-06-19 | 2004-10-27 | Закрытое акционерное общество "Щелково Агрохим" | Tebuconazole-based fungicidal composition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105076240A (en) * | 2015-08-10 | 2015-11-25 | 谢绪叶 | Bactericide containing tebuconazole and scutellaria baicalensis |
| CN114190391A (en) * | 2016-08-09 | 2022-03-18 | 大日本除虫菊株式会社 | Mildew preventive composition and mildew preventive method |
| CN114190391B (en) * | 2016-08-09 | 2024-02-20 | 大日本除虫菊株式会社 | Mildew preventive composition and mildew preventive method |
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Application publication date: 20130320 |