CN101755734B - Ultra-low volume combination mecianment for controlling rice sheath blight disease - Google Patents
Ultra-low volume combination mecianment for controlling rice sheath blight disease Download PDFInfo
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- CN101755734B CN101755734B CN 200910114526 CN200910114526A CN101755734B CN 101755734 B CN101755734 B CN 101755734B CN 200910114526 CN200910114526 CN 200910114526 CN 200910114526 A CN200910114526 A CN 200910114526A CN 101755734 B CN101755734 B CN 101755734B
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Abstract
The invention discloses an ultra-low volume combination medicament for controlling rice sheath blight disease, which is prepared into an electrostatic oil formulation with the following components: active components, conductive agent, cosolvent and solvent, wherein the active components comprise an active component A and an active component B, the active component A is difenoconazole, and the active component B is any one of the following fungicides: propiconazole, hexaconazole, tebuconazole, prochloraz and tricyclazole; the components in proportion by weight are as follows: 0.1-40 parts of active component A, 1-80 parts of active ingredient B, 1-3 parts of conductive agent, 2-10 parts of cosolvent and balance of solvent; and the active component A and the active component B account for 0.1%-80% of the total weight of the combination. The invention has high controlling effect, low cost, low pollution, convenient processing, good pesticide effect, long persistent effect and high work efficiency, and can reduce environment pollution, improves utilization ratio of pesticides, reduces pesticide consumption and is suitable for electrostatic spraying.
Description
Technical field
The present invention relates to Difenoconazole (hereinafter referred to as effective constituents A) and propiconazole, own azoles alcohol, Tebuconazole, Prochloraz, tricyclazole (hereinafter referred to as active ingredient B) one of them for the binary Pesticidal combination of active ingredient prevent and treat ultra low volume electrostatic oil agent of rice sheath blight disease and preparation method thereof, belong to the pesticidal preparations field.
Background technology
Rice sheath blight disease popular name flower pin stalk, one of Main Rice Diseases.Generally can make paddy rice underproduction 4%-8%, serious reached at 50%-70%.The rice sheath blight mainly cause harm leaf sheath and blade are also encroached on spike of rice and go deep into the stem stalk when serious.Generally begin morbidity in tillering stage, just produce the hygrophanous stigma of dirty-green on the leaf sheath at the nearly water surface of rice strain place, the appearance of scalding as boiling water, after be expanded into gradually ellipse or moire shape, the edge brown, the filbert or canescence in middle part is merged into mutually large speckle when scab is many.Spot pattern on blade is indefinite, and color and luster is similar with leaf sheath.Spike of rice is injured, and light can see one section husk browning when going out fringe, causes not plump paddy; The serious spike of rice of can not taking out is extremely at tyre cavity.When moist, each sick section all grows spider's thread shape mycelium.The control medicament of rice sheath blight disease mainly contains jinggangmeisu, Difenoconazole, propiconazole, carbendazim, thiophanate methyl etc. at present, and the method for preventing and treating is mainly take foliar spray as main.
The existing preparation of the binary Pesticidal combination that the present invention relates to mainly contains missible oil and suspending agent, and and Difenoconazole and propiconazole, own azoles alcohol, Tebuconazole, Prochloraz, tricyclazole one of them be the electrostatic oil agent of the binary composition of active ingredient, have no report both at home and abroad.
Summary of the invention
The purpose of this invention is to provide a kind of take Difenoconazole and propiconazole, own azoles alcohol, Tebuconazole, Prochloraz, one of them electrostatic oil agent as the binary composition of active ingredient of tricyclazole.
The organic solvent that electrostatic oil agent is low by the screening volatility, flash-point is high, high to former medicine dissolubility, lower to chemical injury of crops, viscosity is low not to water, generally also not to other organic solvents, but is directly used with electrostatic sprayer during dispenser.Electrostatic spray makes the droplet of each ejection all with electrostatic charge, be easier to be caught by target, higher than general finish deposition, penetrability to target such as plant strain canopy is more superior, therefore efficient especially with economize medicine, it is one of present target hit rate is the highest, environmental pollution the is minimum formulations of pesticide and using method.And not containing the high volatile volatile composition in droplet, its size does not have significant change with quality from leave facility arrival target process, reduced volatilization and drift.Droplet is tiny and even, meets " biological optimum grain-diameter " requirement, has significantly improved deposition.Electrostatic oil agent directly uses and need not be to water, is specially adapted to water scarcity, damage by disease and insect and belongs to fulminant and occur that area is large, occasion that must dispenser on a large scale in the short time.
The electrostatic spray technology is that applying high voltage static is set up an electrostatic field between shower nozzle and spraying target, and agricultural chemicals liquid is flowed through after shower nozzle atomizing, filled with electric charge by different charging methods, form colony's charged droplets, then under the synergy of electrostatic field force and other external force, droplet is done directed movement and is adsorbed on each position of target, reaches the good performances such as deposition efficiency is high, float of mist droplet scatters and disappears less, improve the ecological environment.Atomization of liquid mechanism more complicated under electrostatic field, it has been generally acknowledged that: electrostatic interaction can reduce surface tension of liquid, reduces the resistance that atomizes, simultaneously, repulsive interaction generation between the same sex electric charge additional external and internal pressure opposite with surface tension is poor, thereby improves fogging degree.
The droplet charging has three kinds of modes: (1) corona charging method, utilize the electrostatic high-pressure corona to make droplet charged; (2) contact mise-a-la-masse method directly is placed in liquid to the static high voltage, is Charged Droplet after the nozzle ejection; (3) inductive charging method is externally under the voltage electric field action, utilizes the electric field between electrode and medical liquid jet to make droplet charged.
The electrostatic spray technology has the following advantages:
1. electrostatic spray has the effect of outflanking, point effect, penetration effect, and even to the target vegetation, deposition is high.The droplet that electrostatic spray forms is with same sex electric charge, mutually repel in spatial movement, do not condense, the induction of Charged Droplet makes the outside of crop produce the charges of different polarity, under the effect of electric field force, the droplet quick adsorption has improved the deposition of agricultural chemicals on the target crop to the positive and negative of crop, has improved the uniformity of agricultural chemicals deposition.Agricultural chemicals improves more than 36% than conventional spraying at the deposition on crop surface, and leaf back side agricultural chemicals deposition is tens times of conventional spraying, and crop top, middle part and root agricultural chemicals deposition distributing homogeneity all are significantly increased.More much lower than conventional spraying at the deposition that vegetable protecting field adopts electrostatic spray, droplet to drop on the electrical insulator plastic film, can improve the deposition of droplet on plant, effectively utilize agricultural chemicals, reduce drift and be deposited in loss on plastic film.
2. improve the availability of agricultural chemicals, reduce the usage amount of agricultural chemicals, reduce cost accounting.The electrostatic spray droplet size generally about 45 μ m, can reduce mist droplet particle size effectively, improves the spectrum of fog drop uniformity, meets biological optimum grain-diameter theoretical, is easy to be caught by target.When electrostatic potential was 20KV, mist droplet particle size reduced approximately 10%, and the spectrum of fog drop uniformity improves approximately 5%.Significantly increase the chance that droplet contacts with damage by disease and insect, improved exponentially extermination of disease and insect pest effect (improving more than 2 times than conventional spraying under similarity condition).And finish has affinity to insect body wall, is easy to penetrate body wall and enters in pest body, makes insect poisoning fast.Dosage is saved more than 30% than conventional spraying.
3. little to water source, environmental influence, reduced the pollution of agricultural chemicals to environment.The electrostatic spray spouting liquid is few, and every mu is only 60～150mL, is only more than one percent of conventional spraying, and the suction-operated of electric field force reduced the drift of agricultural chemicals, makes the agricultural chemicals availability high, has avoided the agricultural chemicals loss, has reduced the pollution of agricultural chemicals to environment.
4. the electrostatic spray lasting period is long.Charged Droplet is high adsorption capacity on crop, and comprehensively evenly, dispenser efficient is high, and it is firm that agricultural chemicals adheres on leaf, resistance of rainwater washing against, and the high boiling solvent in finish can effectively delay the degraded of pesticide active ingredient, and drug effect is permanent.
5. work efficiency is high, and control in time.The hand-held electrostatic ultra low volume spray improves 10～20 times of work efficiency than conventional spraying, and Dongfanghong-18 type power knapsack electrostatic sprayer per hour can spray 20～30 mu.
6. electrostatic spray adopts supporting electrostatic oil agent, need not to add water, is particularly suitable for drought and water shortage area use.
7. electrostatic spray is difficult for producing poisoning to crop, without obviously residual, can improve the quality of crop.
The technical solution used in the present invention is:
Provide take Difenoconazole and propiconazole, own azoles alcohol, Tebuconazole, Prochloraz, one of them ultra low volume electrostatic oil agent of preventing and treating rice sheath blight disease as the binary Pesticidal combination of active ingredient of tricyclazole
It comprises the component of following weight proportion: make the electrostatic oil agent formulation, by active component, conductive agent, cosolvent, solvent composition; Active component comprises active components A and active component B, and wherein active components A is Difenoconazole, and active component B is any one of following bactericide: propiconazole, own azoles alcohol, Tebuconazole, Prochloraz, tricyclazole;
0.1 part～40 parts of active components A;
1 part～80 parts of active component B;
1 part～3 parts of conductive agents;
2 parts～10 parts of cosolvents;
Solvent complements to 100 parts.
Its composition weight proportion optimization: make the electrostatic oil agent formulation, by active component, conductive agent, cosolvent, solvent composition; Active component comprises active components A and active component B, and wherein active components A is Difenoconazole, and active component B is any one of following bactericide: propiconazole, own azoles alcohol, Tebuconazole, Prochloraz, tricyclazole;
5 parts～30 parts of active components A;
10 parts～60 parts of active component B;
1 part～3 parts of conductive agents;
2 parts～10 parts of cosolvents;
Solvent complements to 100 parts.
Conductive agent is selected anion surfactant.
Conductive agent is neopelex or calcium dodecyl benzene sulfonate.
Cosolvent is selected the C such as n-butanol, n-amyl alcohol, n-octyl alcohol, phenmethylol, cyclohexanone, methyl-sulfoxide or 1-METHYLPYRROLIDONE
4Above alcohols.
The preferred n-butanol of cosolvent, n-octyl alcohol or 1-METHYLPYRROLIDONE.
Solvent is selected many Fluhyzons, heavy aromatics or vegetable oil.
The preferred two wires of solvent oil.
The above aromatic hydrocarbons of the preferred C10 of solvent.
Active components A+B accounts for 0.1%～80% of composition total weight.
Electrostatic oil agent of the present invention adopts the manner known in the art preparation, normally active ingredient and conductive agent, cosolvent, solvent is fully mixed and forms.
The method for optimizing of using electrostatic oil agent of the present invention is the static ultra low volume spraying, and a situation arises determines suitable consumption according to controlling object, and formulation rate is 90～450ga.i./hm usually
2
Beneficial effect of the present invention:
The present invention is a kind of novel form ultra low volume electrostatic oil agent of preventing and treating rice sheath blight disease, and a kind of imitation is high, cost is low, oligosaprobic formulation and the medicament prevented and treated for rice sheath blight disease controlling provides.
Electrostatic oil agent of the present invention is easy to process, with low cost, good drug efficacy, holding effect is long, work efficiency is high; Can reduce environmental pollution, improve the agricultural chemicals availability, reduce the agricultural chemicals usage amount, be suitable for electrostatic spray.
Embodiment
The present invention describes with the following example, but does not limit the scope of the invention.
Embodiment 1
Prepare 1.1% phenylate propiconazole electrostatic oiling agent
Embodiment 2
Prepare 80% phenylate propiconazole electrostatic oiling agent
Embodiment 3
Prepare 30% phenylate propiconazole electrostatic oiling agent
Embodiment 4
Prepare the 6% own azoles alcohol of phenylate electrostatic oil agent
Embodiment 5
Prepare the 40% own azoles alcohol of phenylate electrostatic oil agent
Embodiment 6
Prepare the 20% own azoles alcohol of phenylate electrostatic oil agent
Embodiment 7
Prepare 7% phenylate tebuconazole electrostatic oil agent
Embodiment 8
Prepare 80% phenylate tebuconazole electrostatic oil agent
Embodiment 9
Prepare 20% phenylate tebuconazole electrostatic oil agent
Embodiment 10
Prepare 4% phenylate prochloraz electrostatic oiling agent
Embodiment 11
Prepare 80% phenylate prochloraz electrostatic oiling agent
Embodiment 12
Prepare 20% phenylate prochloraz electrostatic oiling agent
Embodiment 13
Prepare 7% phenylate tricyclazole electrostatic oil agent
Embodiment 14
Prepare 80% phenylate tricyclazole electrostatic oil agent
Embodiment 15
Prepare 20% phenylate tricyclazole electrostatic oil agent
Prepared above-mentioned electrostatic oil agent outward appearance is transparent homogeneous oily liquids; The low-temperature phase capacitive is good, and under-5 ℃, refrigeration 7d is crystallization or suspension not; Volatility is low, filter paper suspension method measurement result, and volatility is lower than 30%; To plant safety, without poisoning; The employing method of remaining silent is measured, and flash-point is greater than 70 ℃; Viscosity is below 10mPas; Electrical conductivity (μ Ω cm
-1) 1～10
-3Between.
Claims (8)
1. one kind is used for preventing and treating the ultra-low-volume composite reagent of rice sheath blight disease, it is characterized in that comprising the component of following weight proportion: make the electrostatic oil agent formulation, by active component, conductive agent, cosolvent, solvent composition; Active components A and active component B, wherein active components A is Difenoconazole, active component B is any one of following bactericide: propiconazole, own azoles alcohol, Tebuconazole, Prochloraz, tricyclazole;
0.1 part～40 parts of active components A;
1 part～80 parts of active component B;
1 part～3 parts of conductive agents;
2 parts～10 parts of cosolvents;
Solvent complements to 100 parts.
2. the ultra-low-volume composite reagent be used to preventing and treating rice sheath blight disease according to claim 1, is characterized in that described composition weight proportion optimization: make the electrostatic oil agent formulation, by active component, conductive agent, cosolvent, solvent composition; Active component comprises active components A and active component B, and wherein active components A is Difenoconazole, and active component B is any one of following bactericide: propiconazole, own azoles alcohol, Tebuconazole, Prochloraz, tricyclazole;
5 parts～30 parts of active components A;
10 parts～60 parts of active component B;
1 part～3 parts of conductive agents;
2 parts～10 parts of cosolvents;
Solvent complements to 100 parts.
3. the ultra-low-volume composite reagent be used to preventing and treating rice sheath blight disease according to claim 1 and 2, it is characterized in that: conductive agent is selected anion surfactant.
4. the ultra-low-volume composite reagent be used to preventing and treating rice sheath blight disease according to claim 3, it is characterized in that: conductive agent is selected neopelex or calcium dodecyl benzene sulfonate.
5. the ultra-low-volume composite reagent be used to preventing and treating rice sheath blight disease according to claim 1 and 2, it is characterized in that: cosolvent is selected n-butanol, n-amyl alcohol, n-octyl alcohol, phenmethylol, cyclohexanone, methyl-sulfoxide or 1-METHYLPYRROLIDONE.
6. the ultra-low-volume composite reagent be used to preventing and treating rice sheath blight disease according to claim 5, it is characterized in that: cosolvent is preferably used n-butanol, n-octyl alcohol or 1-METHYLPYRROLIDONE.
7. the ultra-low-volume composite reagent be used to preventing and treating rice sheath blight disease according to claim 1 and 2, it is characterized in that: solvent is selected many Fluhyzons, heavy aromatics or vegetable oil.
8. the ultra-low-volume composite reagent be used to preventing and treating rice sheath blight disease according to claim 6, it is characterized in that: solvent is preferably used two wires oil or C
10Aromatic hydrocarbons.
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| CN101755734B true CN101755734B (en) | 2013-06-05 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101731203B (en) * | 2010-01-21 | 2013-07-31 | 广西田园生化股份有限公司 | Electrostatic oiling agent with binary composite of propiconazole and difenoconazole |
| CN102578129A (en) * | 2012-02-06 | 2012-07-18 | 山东禾宜生物科技有限公司 | Bactericide for controlling sigatoka |
| CN104604920A (en) * | 2013-11-05 | 2015-05-13 | 南京华洲药业有限公司 | Sterilization composition containing prochloraz nantokite and triazole bactericide as well as application thereof |
| CN105766979A (en) * | 2014-12-26 | 2016-07-20 | 陈淑琴 | Fungicide for preventing and treating powdery mildew of astragali and preparing method of fungicide |
| CN104542644A (en) * | 2014-12-31 | 2015-04-29 | 苏州佳辉化工有限公司 | Sterilization mixture containing difenoconazole, tricyclazole and propiconazole |
| CN104957184A (en) * | 2015-08-06 | 2015-10-07 | 杨新兰 | Bactericide containing epoxiconazole and radix astragali |
| CN105851013A (en) * | 2016-05-07 | 2016-08-17 | 广东中迅农科股份有限公司 | Difenoconazole and tebuconazole mixed water suspending agent and method for preparing same |
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| CN101518231A (en) * | 2009-03-18 | 2009-09-02 | 广西田园生化股份有限公司 | Nitenpyram static oil agent and preparation method thereof |
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Patent Citations (1)
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| CN101518231A (en) * | 2009-03-18 | 2009-09-02 | 广西田园生化股份有限公司 | Nitenpyram static oil agent and preparation method thereof |
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