CN102823609B - Purpose of sterilization agent composition for preventing and treating rice diseases - Google Patents
Purpose of sterilization agent composition for preventing and treating rice diseases Download PDFInfo
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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
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/647—Triazoles; Hydrogenated triazoles
- A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- 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
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Abstract
The invention relates to a purpose of a sterilization agent composition for preventing and treating rice diseases. The composition consists of two active substances and agriculture acceptable pesticide auxiliary agents, wherein the ingredient a is epoxiconazole, and the ingredient b is prochloraz (or agriculture acceptable metal salt type compounds of the prochloraz). In the active ingredients, the weight ratio of the epoxiconazole to the prochloraz is 0.03 to 65, and is preferably 0.05 to 55. The sterilization agent composition can be used for effectively preventing and treating rice blast diseases, rice sheath blight diseases and rice brown spot diseases. The composition obtained through compounding the ingredient a and the ingredient b has the positive effects in aspects of fungus resistance delay, prevention and treatment effect improvement and the like, and high sterilization activity is shown. Experiments prove that the composition provided by the invention has the characteristics that the use cost is low, the use is safe on plants and environment, and the like.
Description
Technical field
The present invention relates to a kind of purposes with microbicide compositions control rice blast, rice sheath blight disease and Hemintho-sporum leaf spot of rice plants of synergistic function, said composition has protection and therapeutic action to crop, shows extremely strong antibiotic and bactericidal activity.The invention belongs to the agriculture plant protection field.
Technical background
Rice blast, rice sheath blight disease and paddy rice flax spot etc. are the paddy rice Common Diseases, these diseases have become the Major Diseases of restriction paddy growth and good harvest at present, the normally used medicament of these diseases is the conventional dose such as thiophanate methyl, jinggangmeisu, triazolone, carbendazim, because these medicaments just start spread the seventies from eighties of last century, the long-term use kind of high dose ground continuously or the single chemical bactericide of the mode of action, easily affect the problems such as residual, the environmental pollution of medicament and the development of pesticide resistance fungi.Epoxiconazole and Prochloraz are all very effective bactericide in agricultural production.Epoxiconazole is a kind of novel important triazole type fungicides, not only has good protection, treats and roots out activity, and have better systemic activity, can be absorbed by plant rapidly and conduct to susceptible position, disease is infected immediately and stop.Because this compound imports fluorine ion, thus extra high bactericidal activity there is for the paddy rice fungal disease, but, because the epoxiconazole cost is higher, be difficult to spread.Prochloraz is broad-spectrum germicide, it is the strongest active kind in the amino formyl imidazole class, there is good conductive performance, the multiple diseases that Ascomycetes, Basidiomycetes, deuteromycetes etc. are caused has reasonable effect, for the paddy rice fungal disease, reasonable preventive effect is also arranged, and moderate, be easy to promote, but chronic administration, the fungus resistant problem also becomes increasingly conspicuous.For problems, current normally used method is that the mixture that filters out the compound of different activities is prevented and treated harmful fungoid.But produce by the method delaying drug resistance, reduce amount of application, improve control efficiency, reduce cost accounting.
Summary of the invention
Purpose of the present invention: for above-mentioned weak point, by two kinds of effective active compositions such as epoxiconazole, Prochloraz (or the upper acceptable metal salt compound of its agricultural) are combined, and be aided with insecticides adjuvant, a kind of microbicide compositions that has synergistic function for control paddy rice fungoid germ is provided.Result of the test shows, composition synergistic effect of the present invention is obvious, has reduced formulation rate simultaneously, has reduced spraying times, and between epoxiconazole and Prochloraz without cross resistance.
Prochloraz (english common name Prochloraz), chemical name (formula I): N-propyl group-N-[2-(2,4,6-Trichlorophenoxy) ethyl]-imidazoles-1-formamide
The metal ion that is suitable for Prochloraz metal salt compound of the present invention can be selected in the periodic table of elements the first to second excessive family element, especially manganese, iron, zinc, copper; The ion that also has the second major element, especially calcium and magnesium; And third and fourth major element, especially aluminium ion.If suitable, the various chemical valences that metal ion can may present with them exist.For example, select the salt compounds (suc as formula II) of metal ion manganese, that is, and N-propyl group-N-[2-(2,4,6-Trichlorophenoxy) ethyl]-1-H-imidazoles-1-formamide-manganese chloride.
（II）
Epoxiconazole (english common name epoxiconazole), chemical name (formula III): (2RS, 3RS)-1-[3-(2-chlorphenyl)-2,3-epoxy-2-(4-fluorophenyl) propyl group]-1 hydrogen-1,2, the 4-triazole.
Concrete scheme of the present invention is: a kind of microbicide compositions of preventing and treating the paddy rice fungal disease comprises following component: epoxiconazole and Prochloraz (or upper acceptable its metal salt compound of agricultural) and the conventional auxiliary agent of agricultural chemicals form.
Be suitable for wherein a kind of such as the preferred prochloraz-manganese chloride complex of Prochloraz metal salt compound of the present invention, prochloraz zinc salt, prochloraz nantokite.
In composition of the present invention, Prochloraz and epoxiconazole weight ratio are 1:50～50:1, are preferably 1:30～30:1.
Mixture of the present invention is used with the form of composition, during use, usually together with the usual auxiliaries such as other carriers, surfactant, uses.
Suitable additive and carrier can be solid or liquid, and they are material commonly used in the formulation process normally, natural or mineral matter regeneration for example, solvent, dispersant, wetting agent, adhesive, thickener, adhesive or fertilizer.
The method for optimizing of the application present composition comprises the acrial part for plant growth by composition of the present invention, particularly leaf section (foliage applying).Frequency of utilization and amount of application depend on biology and the weather life condition of pathogene.
Composition of the present invention can be used with constant form, or preferably together with normally used additive in configuration technique, uses, so these compounds can be configured in known manner, for example makes wetting powder, suspending agent, water dispersible granules.The character had according to these compositions, can select as spraying, atomizing according to the purpose that will reach and ambient conditions, broadcast sowing, bold and vigorous application process of watering etc. and so on.
Composition as solid form, having of can mentioning is following several: (content of its active component is generally higher for water dispersible granules, usually between 50%-90%), normally by the agglomeration of wettable powder type composition in suitable granular system, prepared, make this formulation.
Wetting powder is general to be prepared by such method, and, so that its active component contained is as the criterion, except solid carrier, they generally contain the wetting agent of 0-7%, the dispersant of 3-10%, in case of necessity, then one or more other the additive that contains 0-10%.As dyestuff, colouring agent, bleeding agent, adhesive or anti-caking agent etc.
Suspending agent is to prepare with following method, to obtain not forming sedimental stable fluid, be as the criterion, they generally contain the active component of 10-85%, the surfactant of 0.5-45%, the additive such as dyestuff, colouring agent, foam reducing composition, corrosion inhibitor, stabilizing agent and bleeding agent and adhesive etc. that 0-10% is suitable, carrier can be water or organic liquid, active component indissoluble or water fast, can be dissolved in some solid organic matter or mineral salt in liquid in order to contribute to sediments to form or as the antifreezing agent of water.
Available known method prepares various formulations: for example, by active ingredient and filler, as solvent, solid carrier, can together with surfactant, evenly mix while needing, grind.
The solvent that is suitable for invention alternatively has: aromatic hydrocarbon, preferably containing 8-12 carbon atom, as the benzene of xylene mixture or replacement, phthalate, as Dibutyl phthalate or phthalandione two sad, fat hydrocarbon, as cyclohexane or paraffin, alcohol and ethylene glycol and their ether and ester, as ethanol, ethylene glycol, the glycol monomethyl methyl; Ketone, as cyclohexanone, the solvent of strong polarity, as METHYLPYRROLIDONE, dimethyl sulfoxide (DMSO) or dimethyl formamide, and vegetable oil or vegetable oil, as soybean oil.
Be suitable for solid carrier of the present invention, but for example, as the normally natural minerals filler for pulvis and dispersant, talcum, kaolin, montmorillonite or atlapulgite.For the managing physical performance also can add polymolecularity silicic acid or polymolecularity adsorpting polymerization thing.Suitable granular absorption carrier is porous type, as float stone, bentonite or bentonite; Suitable non-absorption carrier is for example calcite or sand.In addition, can use being prefabricated into of a large amount of inorganic in nature or organic nature granular material, particularly dolomite.
The chemical property of two components according to the present invention, suitable surfactant is lignin sulfonic acid, naphthalene sulfonic acids, phenolsulfonic acid, the alkali metal salt of dibutyl naphthalene sulfonic acids, alkali salt and amine salt, alkylaryl sulfonates, alkyl sulfate, alkylsulfonate, alkylsulfonate, aliphatic alcohol sulfate, fatty acid and sulphated fatty alcohol glycol ether, the condensation product that also has sulfonated naphthalene and naphthalene derivatives and formaldehyde, the condensation product of naphthalene or naphthalene sulfonic acids and phenol and formaldehyde, NONIN HS 240, the ethoxylation isooctylphenol, octyl phenol, nonyl phenol, alkylaryl polyglycol ether, tributyl benzene polyglycol ether, three stearyl phenyl polyglycol ethers, alkyl aryl polyether alcohol, ethoxylated castor oil, polyoxyethylene alkyl ether, the ethylene oxide condensation product, the ethoxylation polyoxypropylene, lauric acid polyglycol ether acetal, sorbitol ester, lignin sulfite waste liquor and methylcellulose.
Can use in composition of the present invention, when jointly using two components, the effect of stack (equaling synergy) occur.The specific activity of this composition is used the activity expection summation of individualized compound, and the independent activity of individualized compound is more remarkable.Synergistic effect allow to show as amount of application minimizing, action effect instant effect, more lasting control efficiency, by only once or minority use several times and can better control the plant harmful fungoid.
Other characteristics main manifestations shown of bactericidal composition of the present invention is: 1,, because two single dose chemical constitutions of this composition are widely different, do not have cross resistance, can delay two single doses and use separately the resistance problem produced; 2, composition of the present invention is good to crop safety, preventive effect.Through evidence, microbicide compositions stable chemical nature of the present invention, synergy is remarkable, and controlling object is shown to obvious synergy and complementation; 3, reduced dosage, thereby reduced cost and alleviated the pollution to environment.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention, all any modifications of making within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
In all formulas of following examples, percentage all is weight percentage.The processing technology of the various preparations of the present composition is prior art, according to different situations, can change to some extent.
One, formulation Preparation Example
(4) processing of aqueous emulsion and embodiment
Active component a is mixed under mechanical agitation with b, solvent, auxiliary agent, then drop into emulsifier and stabilizing agent stirs, finally add water, stir 10-30 minute under the rotating speed of 100-12000 rev/min, make it to become the product of even emulsus.
Embodiment 1:30% Prochloraz epoxiconazole aqueous emulsion
Prochloraz 5%, epoxiconazole 25%, polyoxyethylene block copolymer 4%, propane diols 2%, xanthans 3%, poly-isosuccinic acid acid anhydride-ethylene glycol copolymer 4%, silicone defoaming agent 2%, water complements to 100%.
In above-described embodiment 1, also can substitute Prochloraz with prochloraz-manganese chloride complex, prochloraz nantokite, prochloraz zinc salt and prepare this embodiment.
Embodiment 2:30% Prochloraz epoxiconazole aqueous emulsion
Prochloraz 25%, epoxiconazole 5%, N-dodecylpyrrolidone 3%, castor oil polyoxyethylene ether 2%, glycerine 2%, polyvinyl alcohol 3%, Sodium Benzoate 3%, isooctanol 2%, water complements to 100%.
In above-described embodiment 2, also can substitute Prochloraz with prochloraz-manganese chloride complex, prochloraz nantokite, prochloraz zinc salt and prepare this embodiment.
(2) processing of suspending agent and embodiment
Ratio by active component a and each components such as b, dispersant, wetting agent, thickener and water in formula mixes, and after sand milling and/or high speed shear, obtains semi-finished product, adds water after analysis and mixes to filter and get product.
Embodiment 3:42% prochloraz nantokite epoxiconazole suspension concentrate
Prochloraz nantokite 40%, epoxiconazole 2%, sodium lignin sulfonate 8%, white carbon 2%, ethylene glycol 5%, xanthans 2%, water complements to 100%.
In above-described embodiment 3, also can substitute prochloraz nantokite with Prochloraz, prochloraz-manganese chloride complex, prochloraz zinc salt and prepare this embodiment.
Embodiment 4:42% prochloraz nantokite epoxiconazole suspension concentrate
Prochloraz nantokite 2%, epoxiconazole 40%, white carbon 2%, aliphatic alcohol polyoxyvinethene phosphate 6%, Sodium Benzoate 3%, glycerine 7%, water complements to 100%.
In above-described embodiment 4, also can substitute prochloraz nantokite with Prochloraz, prochloraz-manganese chloride complex, prochloraz zinc salt and prepare this embodiment.
(1) processing of water dispersible granules and embodiment
Active component a is mixed with b, auxiliary agent and the filler ratio in formula, become wetting powder through air-flow crushing, then add a certain amount of water mixing extruder grain, after the drying screening, make the water dispersible granules product.
Embodiment 5:75% prochloraz-manganese chloride complex epoxiconazole water dispersant
Prochloraz-manganese chloride complex 2%, epoxiconazole 73%, sodium alginate 4%, methyl naphthalene sulfonate formaldehyde condensate 2%, ammonium sulfate 2%, organic silicone 2%, bentonite complements to 100%.
In above-described embodiment 5, also can substitute prochloraz-manganese chloride complex with prochloraz nantokite, prochloraz zinc salt or Prochloraz and prepare this embodiment.
Embodiment 6:80% prochloraz zinc salt epoxiconazole water dispersant
Prochloraz zinc salt 78%, epoxiconazole 2%, sodium lignin sulfonate 4%, sodium carboxymethyl starch 1%, dodecyl sodium sulfate 2%, xanthans 4%, attapulgite complements to 100%.
In above-described embodiment 6, also can substitute prochloraz zinc salt with prochloraz nantokite, prochloraz-manganese chloride complex or Prochloraz and prepare this embodiment.
(3) processing of wetting powder and embodiment
Active component a is fully mixed in proportion with b, various auxiliary agent and filler etc., make wetting powder after ultra-fine pulverizer disintegrating.
Embodiment 7:85% prochloraz nantokite epoxiconazole wetting powder
Prochloraz nantokite 78%, epoxiconazole 7%, calcium lignosulfonate 6%, bentonite 3%, NONIN HS 240 4%, attapulgite complements to 100%.
In above-described embodiment 7, also can substitute prochloraz nantokite with prochloraz-manganese chloride complex, Prochloraz or prochloraz zinc salt and prepare this embodiment.
Embodiment 8:50% prochloraz nantokite epoxiconazole wetting powder
Prochloraz nantokite 25%, epoxiconazole 25%, calcium lignosulfonate 4%, white carbon 8%, neopelex 3%, attapulgite complements to 100%.
In above-described embodiment 8, also can substitute prochloraz nantokite with prochloraz-manganese chloride complex, Prochloraz or prochloraz zinc salt and prepare this embodiment.
Embodiment 9:55% prochloraz-manganese chloride complex epoxiconazole wetting powder
Prochloraz-manganese chloride complex 5%, epoxiconazole 50%, NONIN HS 240 6%, sodium lignin sulfonate 7%, white carbon 15%, diatomite complements to 100%.
In above-described embodiment 9, also can substitute prochloraz-manganese chloride complex with prochloraz nantokite, Prochloraz or Prochloraz and prepare this embodiment.
Two, Application Example
(1) indoor biological activity determination co-toxicity coefficient of the present invention
Control efficiency is converted into to probability value (y), and liquor strength (μ g/ml) converts logarithm value (x) to, with method of least squares, calculates concentration EC50 in virulence equation and inhibition, calculates the toxicity index level co-toxicity coefficient (CTC) of medicament according to the abundant method of Sun Yun.Toxicity test the results are shown in Table 1.
Actual measurement toxicity index (ATI)=(standard medicament EC50/ reagent agent EC50) * 100
The percentage composition of B in the percentage composition of A+B medicament toxicity index * mixture in theoretical toxicity index (TTI)=A medicament toxicity index * mixture
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (ATI)/theoretical toxicity index (TTI) of mixture] * 100CTC≤80, the composition performance is antagonism, 80<CTC<120, and the composition performance is summation action, CTC >=120, the composition performance is synergistic effect.
1, indoor biological activity determination composition of the present invention is measured the co-toxicity coefficient of rice blast
Subjects: rice blast fungus (pick up from field and through separation and purification)
Table 1 Prochloraz is composite to the interpretation of result of rice blast toxicity test from epoxiconazole and different proportioning thereof
| The medicament title | EC 50(μg/ml) | ATI | TTI | Co-toxicity coefficient (CTC) |
| Prochloraz | 5.41 | 100.000 | / | / |
| Epoxiconazole | 3.25 | 166.461 | / | / |
| Proportioning Prochloraz: epoxiconazole=50:1 | 3.89 | 138.984 | 101.303 | 137.196 |
| Proportioning Prochloraz: epoxiconazole=30:1 | 3.07 | 176.016 | 102.144 | 172.322 |
| Proportioning Prochloraz: epoxiconazole=10:1 | 2.39 | 226.368 | 106.042 | 213.47 |
| Proportioning Prochloraz: epoxiconazole=1:1 | 2.08 | 259.970 | 133.231 | 195.128 |
| Proportioning Prochloraz: epoxiconazole=1:10 | 2.02 | 268.062 | 160.419 | 167.101 |
| Proportioning Prochloraz: epoxiconazole=1:30 | 2.08 | 260.337 | 164.317 | 158.436 |
| Proportioning Prochloraz: epoxiconazole=1:50 | 2.40 | 225.363 | 165.158 | 136.453 |
Measurement result (table 1) shows, the control to rice blast between proportioning 50:1～1:50 of Prochloraz and epoxiconazole has synergistic effect, especially between 30:1～1:30, synergistic effect is remarkable, co-toxicity coefficient, all more than 150, illustrates that the composite synergistic effect to rice blast of Prochloraz and epoxiconazole is obvious.
2, indoor biological activity determination composition of the present invention is measured the co-toxicity coefficient of rice sheath blight disease
Subjects: Rhizoctonia solani Kuhn
Table 2 Prochloraz is composite to the interpretation of result of rice sheath blight disease toxicity test from epoxiconazole and different proportioning thereof
| The medicament title | EC 50(μg/ml) | ATI | TTI | Co-toxicity coefficient (CTC) |
| Prochloraz | 5.85 | 100.00 | / | / |
| Epoxiconazole | 3.96 | 147.73 | / | / |
| Proportioning Prochloraz: epoxiconazole=50:1 | 4.46 | 131.126 | 100.936 | 129.91 |
| Proportioning Prochloraz: epoxiconazole=30:1 | 3.08 | 189.696 | 101.540 | 186.82 |
| Proportioning Prochloraz: epoxiconazole=10:1 | 1.96 | 298.128 | 104.339 | 285.73 |
| Proportioning Prochloraz: epoxiconazole=1:1 | 2.06 | 284.183 | 123.865 | 229.43 |
| Proportioning Prochloraz: epoxiconazole=1:10 | 2.18 | 268.155 | 143.391 | 187.01 |
| Proportioning Prochloraz: epoxiconazole=1:30 | 2.39 | 245.205 | 146.190 | 167.73 |
| Proportioning Prochloraz: epoxiconazole=1:50 | 3.18 | 184.021 | 146.794 | 125.36 |
Measurement result (table 2) shows, Prochloraz and epoxiconazole, between proportioning 50:1～1:50, have synergistic effect to the control of rice sheath blight disease, and especially, between 30:1～1:30, synergistic effect is particularly remarkable, and co-toxicity coefficient is all more than 165.
3, the co-toxicity coefficient of indoor biological activity determination composition of the present invention to Hemintho-sporum leaf spot of rice plants
Table 3 Prochloraz and epoxiconazole and the composite interpretation of result of the toxicity test to Hemintho-sporum leaf spot of rice plants of different proportioning thereof
| The medicament title | EC 50(μg/ml) | ATI | TTI | Co-toxicity coefficient (CTC) |
| Prochloraz | 5.41 | 100.00 | / | / |
| Epoxiconazole | 3.25 | 166.46 | / | / |
| Proportioning Prochloraz: epoxiconazole=50:1 | 3.864 | 140.016 | 101.303 | 138.215 |
| Proportioning Prochloraz: epoxiconazole=30:1 | 3.071 | 176.151 | 102.144 | 172.454 |
| Proportioning Prochloraz: epoxiconazole=10:1 | 2.104 | 257.086 | 106.042 | 242.438 |
| Proportioning Prochloraz: epoxiconazole=1:1 | 1.887 | 286.699 | 133.230 | 215.191 |
| Proportioning Prochloraz: epoxiconazole=1:10 | 1.920 | 281.783 | 160.418 | 175.655 |
| Proportioning Prochloraz: epoxiconazole=1:30 | 2.175 | 248.706 | 164.316 | 151.358 |
| Proportioning Prochloraz: epoxiconazole=1:50 | 2.468 | 219.196 | 165.157 | 132.72 |
Measurement result (table 3) shows, Prochloraz and epoxiconazole, between proportioning 50:1～1:50, have synergistic effect to the control of Hemintho-sporum leaf spot of rice plants, and especially, between 30:1～1:30, synergistic effect is particularly remarkable, and co-toxicity coefficient is all more than 135.
(2) field control effectiveness test (adopting the method for parallel test to verify the field trial control efficiency of composition of the present invention to rice blast, banded sclerotial blight, helminthosporium leaf spot)
Test method: at the initial stage of a disease, spray for the first time immediately, carry out dispenser for the second time after 7 days, each processes 4 communities, each community 20 square meter.10 days investigation statistics incidences after medicine before medicine and for the second time, the random sampling of 5 of each communities, every some investigation 5 strain paddy rice, investigate percentage classification that the lesion area of every blade on whole strain paddy rice or leaf sheath accounts for blade area, calculates disease index and control efficiency.
Expect preventive effect (%)=X+Y-XY/100(wherein, X, Y is the single dose preventive effect)
Grade scale:
0 grade: without scab;
1 grade: leaf spot lesion is less than 5, and length is less than 1cm;
3 grades: leaf spot lesion 6-10, part scab length is greater than 1cm;
5 grades: leaf spot lesion 11-25, the part scab is linked to be sheet, and lesion area accounts for the 10-25% of leaf area;
7 grades: leaf spot lesion is more than 26, and scab is linked to be sheet, and lesion area accounts for the 26-50% of leaf area;
9 grades: scab is linked to be sheet, lesion area account for leaf area more than 50% or full leaf withered.
(1) the field control effectiveness test analysis of composition of the present invention to rice blast
The composite result of the field efficiency test to rice blast of table 4 Prochloraz and epoxiconazole
Measurement result (table 4) shows, Prochloraz or prochloraz-manganese chloride complex, prochloraz nantokite, prochloraz zinc salt and epoxiconazole are composite obviously to be improved the preventive effect to the control rice blast, illustrates that the two compositely has significant synergistic effect to rice blast.
(2) the field control effectiveness test analysis of composition of the present invention to rice sheath blight disease
The composite result of the field efficiency test to rice sheath blight disease of table 5 Prochloraz and epoxiconazole
Measurement result (table 5) shows, Prochloraz or prochloraz-manganese chloride complex, prochloraz nantokite, prochloraz zinc salt and epoxiconazole are composite obviously to be improved the preventive effect to preventing and treating rice sheath blight disease, illustrates that the two compositely has significant synergistic effect to banded sclerotial blight.
(3) the field control effectiveness test analysis of composition of the present invention to Hemintho-sporum leaf spot of rice plants
The composite result of the field efficiency test to Hemintho-sporum leaf spot of rice plants of table 6 Prochloraz and epoxiconazole
Measurement result (table 6) shows, Prochloraz or prochloraz-manganese chloride complex, prochloraz nantokite, prochloraz zinc salt and epoxiconazole are composite obviously to be improved the preventive effect to preventing and treating Hemintho-sporum leaf spot of rice plants, illustrates that the two compositely has significant synergistic effect to helminthosporium leaf spot.
Claims (1)
1. the purposes that the microbicide compositions with synergistic effect is prevented and treated the Hemintho-sporum leaf spot of rice plants fungi, it is characterized in that described composition comprises two kinds of active components, wherein active component a is Prochloraz, active component b is epoxiconazole, and the weight ratio between active component a and active component b is 1:1 or 10:1.
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| CN2012103204073A CN102823609B (en) | 2012-09-03 | 2012-09-03 | Purpose of sterilization agent composition for preventing and treating rice diseases |
| PCT/CN2012/084372 WO2014032362A1 (en) | 2012-09-03 | 2012-11-09 | Use of fungicide composition for preventing rice diseases |
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| CN2012103204073A CN102823609B (en) | 2012-09-03 | 2012-09-03 | Purpose of sterilization agent composition for preventing and treating rice diseases |
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| 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 |
| CN105875627A (en) * | 2014-10-17 | 2016-08-24 | 中国农科院植保所廊坊农药中试厂 | Preparation method of prochloraz-epoxiconazole micro-emulsion |
| CN107751219A (en) * | 2016-08-15 | 2018-03-06 | 江苏辉丰农化股份有限公司 | Insecticides with synergistic effect |
| CN114514935A (en) * | 2022-03-07 | 2022-05-20 | 安徽农业大学 | Bactericidal composition for preventing and treating corynespora leaf spot disease of tobacco and application thereof |
| CN115624032A (en) * | 2022-07-12 | 2023-01-20 | 江苏剑牌农化股份有限公司 | Preparation method of prochloraz-epoxiconazole water emulsion |
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| CN101019544A (en) * | 2007-03-15 | 2007-08-22 | 江苏辉丰农化股份有限公司 | Bactericide composition for effectively preventing and treating false smut of rice |
| CN102273442A (en) * | 2011-09-13 | 2011-12-14 | 广西田园生化股份有限公司 | Ultralow volume liquid containing epoxiconazole |
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| BR112012031093A8 (en) * | 2010-06-09 | 2017-10-10 | Syngenta Participations Ag | PESTICIDE MIXTURES INCLUDING ISOXAZOLINE DERIVATIVES |
| CN102150678A (en) * | 2010-12-16 | 2011-08-17 | 陕西韦尔奇作物保护有限公司 | Sterilization composition containing prochloraz |
| CN102258043A (en) * | 2011-08-18 | 2011-11-30 | 陕西美邦农药有限公司 | Germicide composition containing protioconazole |
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- 2012-11-09 WO PCT/CN2012/084372 patent/WO2014032362A1/en active Application Filing
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| CN101019544A (en) * | 2007-03-15 | 2007-08-22 | 江苏辉丰农化股份有限公司 | Bactericide composition for effectively preventing and treating false smut of rice |
| CN102273442A (en) * | 2011-09-13 | 2011-12-14 | 广西田园生化股份有限公司 | Ultralow volume liquid containing epoxiconazole |
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| CN102823609A (en) | 2012-12-19 |
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