CN102308823B - Bactericide composition containing pyraclostrobin - Google Patents
Bactericide composition containing pyraclostrobin Download PDFInfo
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- CN102308823B CN102308823B CN201110064716.4A CN201110064716A CN102308823B CN 102308823 B CN102308823 B CN 102308823B CN 201110064716 A CN201110064716 A CN 201110064716A CN 102308823 B CN102308823 B CN 102308823B
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- CN
- China
- Prior art keywords
- pyraclostrobin
- iprobenfos
- isoprothiolane
- bactericidal composition
- effective active
- 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.)
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- 239000005869 Pyraclostrobin Substances 0.000 title claims abstract description 112
- HZRSNVGNWUDEFX-UHFFFAOYSA-N pyraclostrobin Chemical compound COC(=O)N(OC)C1=CC=CC=C1COC1=NN(C=2C=CC(Cl)=CC=2)C=C1 HZRSNVGNWUDEFX-UHFFFAOYSA-N 0.000 title claims abstract description 112
- 239000000203 mixture Substances 0.000 title claims abstract description 43
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 28
- 239000003899 bactericide agent Substances 0.000 title abstract description 8
- UFHLMYOGRXOCSL-UHFFFAOYSA-N isoprothiolane Chemical compound CC(C)OC(=O)C(C(=O)OC(C)C)=C1SCCS1 UFHLMYOGRXOCSL-UHFFFAOYSA-N 0.000 claims abstract description 50
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 23
- 235000009566 rice Nutrition 0.000 claims abstract description 23
- 201000010099 disease Diseases 0.000 claims abstract description 15
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims abstract description 15
- 239000004562 water dispersible granule Substances 0.000 claims abstract description 15
- 239000000375 suspending agent Substances 0.000 claims abstract description 11
- 241001530056 Athelia rolfsii Species 0.000 claims abstract description 3
- 239000000843 powder Substances 0.000 claims description 12
- 239000000839 emulsion Substances 0.000 claims description 10
- 239000004530 micro-emulsion Substances 0.000 claims description 10
- 238000009736 wetting Methods 0.000 claims description 9
- 241000209094 Oryza Species 0.000 claims 2
- FCOAHACKGGIURQ-UHFFFAOYSA-N iprobenfos Chemical compound CC(C)OP(=O)(OC(C)C)SCC1=CC=CC=C1 FCOAHACKGGIURQ-UHFFFAOYSA-N 0.000 abstract description 55
- 240000007594 Oryza sativa Species 0.000 abstract description 22
- 239000004480 active ingredient Substances 0.000 abstract description 3
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- 239000003814 drug Substances 0.000 description 19
- -1 isopropyl kitazine Chemical compound 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
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- 239000008367 deionised water Substances 0.000 description 12
- 229910021641 deionized water Inorganic materials 0.000 description 12
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- 238000012360 testing method Methods 0.000 description 10
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- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
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- 239000000440 bentonite Substances 0.000 description 4
- 229910000278 bentonite Inorganic materials 0.000 description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 4
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- LLEMOWNGBBNAJR-UHFFFAOYSA-N biphenyl-2-ol Chemical compound OC1=CC=CC=C1C1=CC=CC=C1 LLEMOWNGBBNAJR-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000855 fungicidal effect Effects 0.000 description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- ZOTBXTZVPHCKPN-HTXNQAPBSA-N kresoxim-methyl Chemical compound CO\N=C(\C(=O)OC)C1=CC=CC=C1COC1=CC=CC=C1C ZOTBXTZVPHCKPN-HTXNQAPBSA-N 0.000 description 3
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- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical class CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 3
- 231100000419 toxicity Toxicity 0.000 description 3
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- LYCAIKOWRPUZTN-NMQOAUCRSA-N 1,2-dideuteriooxyethane Chemical compound [2H]OCCO[2H] LYCAIKOWRPUZTN-NMQOAUCRSA-N 0.000 description 2
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- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 2
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- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
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- FRXSZNDVFUDTIR-UHFFFAOYSA-N 6-methoxy-1,2,3,4-tetrahydroquinoline Chemical compound N1CCCC2=CC(OC)=CC=C21 FRXSZNDVFUDTIR-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a bactericide composition containing pyraclostrobin. The effective active ingredient of the bactericide composition comprises one of pyraclostrobin (A) and isoprothiolane or iprobenfos (B), and the weight ratio of A to B is (20-1): (1-80), the effective active ingredient is added with auxiliaries and an excipient to be prepared into water dispersible granules, a suspending agent and the like and is mainly used for preventing and controlling rice blast, banded sclerotial blight, bakanae disease and the like.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of bactericidal composition that contains pyraclostrobin and Isoprothiolane or iprobenfos.
Technical background
Pyraclostrobin (pyraclostrobin), molecular formula: C
20h
23n
3o
2, chemical name: methyl (N)-[[[1-(4-chlorobenzene) pyrazoles-3 base)-oxygen]-0-methoxyl group]-N-methoxymethyl carbamate.
Pyraclostrobin is the bactericide of BASF AG's latest model methoxy acrylic.Sterling is that white is to the tasteless crystalline solid of oldlace.The mechanism of action is mitochondrial respiratory inhibitor.Make mitochondria can not produce and provide cell eubolism institute energy requirement, finally cause cell death.It can control most of diseases such as Ascomycetes, Basidiomycetes, deuteromycetes, Oomycete.Growth to spore germination and leaf intramatrical mycelium has very strong inhibitory action, has protection and therapeutic activity.Have permeability and local systemic activity, the lasting period is long, resistance of rainwater washing against.Be widely used in preventing and treating the disease on wheat, paddy rice, peanut, grape, vegetables, potato, banana, lemon, coffee, fruit tree, walnut, tea tree, tobacco and ornamental plants, lawn and other field crops.This compound not only toxicity is low, to non-target organism safety, and to user and all safety close friends of environment, is classified as " the candidate's medicament that reduces risk " by U.S. EPA.In addition, pyraclostrobin can be to making the positive physiological regulatory action of deposits yields, and the generation of its energy ethene suppressing can help crop to have longer time deposit bio-energy to guarantee maturity like this; The activity that can significantly improve the restore nitrification enzyme of crop, means the use that can reduce Nitrogen In Soils fertilizer, thereby further reduces the impact on underground water; In the time that crop is subject to viral attack, the formation that it can accelerate to resist albumen---identical to the synthesis of degeneration-resistant albumen with crop self salicylic acid synthetic.Pyraclostrobin is the efficient mitochondrial respiratory inhibitor after improving on kresoxim-methyl basis, is to have replaced the o-methyl-phenyl-in kresoxim-methyl molecular structure with N-rubigan pyrazolyl, and the another methoxy acrylic wide-spectrum bactericide of exploitation.Its activity is higher, is current 3 times with series bactericidal agent.And kresoxim-methyl just has the report occurring about wheat powdery mildew resistance for 1 year afterwards in practical application, to 2000 resistance spore (2%-99%) in German the north, the existing a large amount of report in the north and Britain of France.At present the existing institute of the preventive effect of powdery mildew is declined at home.
Isoprothiolane (isoprothiolane) molecular formula: C
12h
18o
4s
2, chemical name: diisopropyl-1,3-dithiolane-a-phenyl malonic ester.
Isoprothiolane is systemic fungicide, and rice blast is had to special efficacy.Rice plant accumulates on leaf texture after absorbing medicament, concentrates on especially cob and branch stalk, invades thereby suppress germ, hinders germ lipid-metabolism, suppresses pathogen growth, plays prevention and treatment.
Iprobenfos (iprobenfos), molecular formula is C
13h
21o
3pS, chemical name: O, O-diisopropyl-S-benzyl thiolophosphate.
Iprobenfos is isopropyl kitazine, belongs to organophosphorus fungicide.Main interference cell membrane permeability, stops some lipophilic chitin precursor by cytoplasma membrane, and chitinous biosynthesis block is hindered, and cell wall can not be grown, and suppresses the normal development of thalline.
No matter be pyraclostrobin, Isoprothiolane (iprobenfos) or other efficient germicides, long-term use separately, easily make disease develop immunity to drugs, cause the problem that dosage strengthens, preventive effect reduces, the lasting period shortens, be unfavorable for environment sustainable development.And if want a kind of novel pesticide that there is no cross resistance newly developed prevent and treat pathogen, need to screen 10,000～1.5 ten thousand compounds, cost 1～1.5 hundred million dollar, the construction cycle is 6～10 years.And that the active ingredient of the different mechanisms of action is carried out is composite, be to delay the disease conventional method that develops immunity to drugs, and according to the effect in production application, judge this composite be synergistic effect or antagonism.Complex role is significantly filled a prescription, and can obviously improve preventive effect, greatly reduces the dosage of agricultural chemicals, also can expand fungicidal spectrum, improves germicidal efficiency.
Pyraclostrobin is different from Isoprothiolane (iprobenfos) mechanism of action, and mutually composite have good synergistic effect within the specific limits.And composite about pyraclostrobin and Isoprothiolane (iprobenfos), there is not yet relevant report at present at home and abroad.
Summary of the invention
The object of the invention is to propose a kind of generation or delaying drug resistance speed that can prevent disease drug resistance, the bactericidal composition that use cost is low, preventive effect is good.
The present invention is achieved through the following technical solutions:
A bactericidal composition that contains pyraclostrobin, wherein pyraclostrobin and Isoprothiolane or iprobenfos weight ratio are 20: 1～1: 80.
The bactericidal composition of described pyraclostrobin-containing, wherein the weight ratio of pyraclostrobin and Isoprothiolane or iprobenfos is 10: 1～1: 40.。
The bactericidal composition of described pyraclostrobin-containing, wherein the weight ratio of pyraclostrobin and Isoprothiolane or iprobenfos is 5: 1～1: 20.
The bactericidal composition of described pyraclostrobin-containing, wherein the weight ratio of pyraclostrobin and Isoprothiolane is 1: 1～1: 10.
The bactericidal composition of described pyraclostrobin-containing, wherein the weight ratio of pyraclostrobin and iprobenfos is 1: 5～1: 20.
The bactericidal composition of described pyraclostrobin-containing connection, wherein effective active component content accounts for 1～90% of gross weight, is preferably 10～80%.
The bactericidal composition of described pyraclostrobin-containing is according to method known in those skilled in the art, add corresponding additive and filler, make the upper any formulation allowing of agricultural, more preferably as: wetting powder, water dispersible granules, suspending agent, aqueous emulsion, microemulsion.
Described auxiliary agent has dispersant, wetting agent, disintegrant, binding agent, defoamer, antifreeze, thickener.
Described dispersant is selected from polycarboxylate, lignosulfonates, the phonetic formaldehyde condensation products sulphate of alkylphenol-polyethenoxy, alkyl benzene sulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol-polyethenoxy is phonetic, aliphatic amine polyoxyethylene is phonetic, one or more in phonetic of polyoxyethylene carboxylate, ester polyoxyethylene.
Described wetting agent is selected from: one or more in lauryl sodium sulfate, neopelex, Nekal BX, wetting and penetrating agent F, spaonin powder, silkworm excrement, soapberry powder.
Described binding agent is selected from: one or more in diatomite, white carbon, PVA, carboxymethyl (ethyl) cellulose.
Described antifreeze is selected from: one or more in ethylene glycol, propane diols, glycerine, polyethylene glycol.
Described defoamer is selected from: one or more in silicone oil, silicone compound, C10-20 saturated fat acid compounds, C8-10 aliphatic alcohols compound.
Described thickener is selected from: one or more in xanthan gum, polyvinyl alcohol, polyethylene glycol.
Described disintegrant is selected from: one or more in bentonite, urea, ammonium sulfate, aluminium chloride, glucose.
Described emulsifier is selected from: agriculture breast 500
#(alkyl benzene calcium sulfonate), 600
#phosphate (phenyl phenol polyoxy ethyl ether phosphate), agriculture breast 400
#(benzyl dimethyl phenol polyoxy ethyl ether), agriculture breast 600
#(phenyl phenol polyoxy ethyl ether), Nongru-700
#(alkylphenol-formaldehyde resin polyoxy ethyl ether), agriculture breast 1600
#one or more in (phenethyl phenol polyoxy ethyl polypropylene-base ether), ethylene oxide-propylene oxide block copolymer.
Described filler is selected from: one or more in kaolin, diatomite, bentonite, attapulgite, white carbon, white carbon, precipitated calcium carbonate.
Composition of the present invention is mainly used in preventing and treating rice blast, banded sclerotial blight, bakanae disease etc.
Beneficial effect of the present invention: (1) present composition effective active composition pyraclostrobin and Isoprothiolane or iprobenfos belong to the bactericide of two kinds of different mechanisms of action, and both mutual mixtures can not produce conflict; (2) present composition shows good synergistic effect in given scope, and preventive effect is apparently higher than single dose, and dosage is little; (3) the present invention not with an organic solvent, is difficult for producing poisoning, is convenient to transport and storage; (4) present composition has special efficacy to rice blast.
Embodiment
Below in conjunction with embodiment, to further instruction of the present invention, but the present invention is not limited thereto.Percentage in following examples is all weight percentage.
The embodiment of the present invention is the method that adopts Toxicity Determination and field trial to combine.
Implementation of an application example one: pyraclostrobin and Isoprothiolane (or iprobenfos) are composite to rice blast Toxicity Determination
After the effective inhibition concentration scope of each medicament is determined in prerun, each medicament is established respectively 5 dosage processing by active constituent content, establishes clear water contrast.Carry out with reference to " farm-chemical indoor determination test rule bactericide ", adopt mycelial growth rate method to measure the virulence of medicament to rice blast.After 72h, measure colony diameter by right-angled intersection method, calculate each processing net growth, mycelial growth inhibition rate.
Net growth (mm)=measurement colony diameter-5
Mycelial growth inhibition rate is converted into probit value (y), liquor strength (μ g/mL) converts logarithm value (x) to, try to achieve virulence regression equation (y=a+bx) with method of least squares, and calculate thus the EC of every kind of medicament
50value.Calculate the different proportioning synergy ratios of two medicaments (SR) according to Wadley method, SR < 0.5 is antagonism simultaneously, and 0.5≤SR≤1.5 are summation action, and SR > 1.5 is synergistic effect.Computing formula is as follows:
Wherein: a, b are respectively pyraclostrobin and Isoprothiolane (or iprobenfos) shared ratio in combination
A is pyraclostrobin
B is Isoprothiolane (or iprobenfos)
Result of the test is as shown in the table:
Table 1 pyraclostrobin, Isoprothiolane and the composite toxicity test analysis of results table to rice blast thereof
As shown in Table 1, pyraclostrobin, the EC of Isoprothiolane to rice blast
50be respectively 0.88mg/L and 19.65mg/L.The virulence of pyraclostrobin is higher than the virulence of Isoprothiolane.Pyraclostrobin and Isoprothiolane mixture in 20: 1～1: 80 scope all shows obvious synergistic effect.Wherein, both mixed synergies in 5: 1～1: 20 scope are comparatively desirable, and in 1: 1～1: 10 scope, mixed synergies is particularly outstanding.
Table 2 pyraclostrobin, iprobenfos and the composite toxicity test analysis of results table to rice blast thereof
As shown in Table 1, pyraclostrobin, the EC of iprobenfos to rice blast
50be respectively 0.88mg/L and 28.14mg/L.The virulence of pyraclostrobin is higher than the virulence of iprobenfos.Pyraclostrobin and iprobenfos mixture in 20: 1～1: 80 scope all shows obvious synergistic effect.Wherein, both mixed synergies in 5: 1～1: 40 scope are comparatively desirable, and in 1: 5～1: 20 scope, mixed synergies is particularly outstanding.
Implementation of an application example two the implementation of Formulation Example
(1) pyraclostrobin Isoprothiolane:
Embodiment 1 80% pyraclostrobin Isoprothiolane wetting powder
Pyraclostrobin 10%, Isoprothiolane 70%, alkylphenol-polyethenoxy are phonetic 3%, lignosulfonates 3%, lauryl sodium sulfate 4%, white carbon add to 100%, mix and make 80% pyraclostrobin 'Daowenling ' water dispersible granule.
Embodiment 2 50% pyraclostrobin Isoprothiolane wetting powders
Pyraclostrobin 20%, Isoprothiolane 30%, lignosulfonates 3%, lauryl sodium sulfate 4%, white carbon 10%, kaolin add to 100%, mix and make 50% pyraclostrobin 'Daowenling ' water dispersible granule.
Embodiment 3 70% pyraclostrobin 'Daowenling ' water dispersible granules
Pyraclostrobin 10%, Isoprothiolane 60%, polycarboxylate 3%, polyoxyethylene carboxylate 3%, lauryl sodium sulfate 4%, sodium bicarbonate 3%, white carbon 10%, roc profit soil add to 100%, mix and make 70% pyraclostrobin 'Daowenling ' water dispersible granule.
Embodiment 4 55% pyraclostrobin 'Daowenling ' water dispersible granules
Pyraclostrobin 5%, Isoprothiolane 50%, alkylphenol-polyethenoxy are phonetic 5%, dodecyl benzene sulfonate 3%, white carbon 12%, bentonite add to 100%, mix and make 55% pyraclostrobin 'Daowenling ' water dispersible granule.
Embodiment 5 40% pyraclostrobin Isoprothiolane suspending agents
Pyraclostrobin 10%, Isoprothiolane 30%, alkyl benzene sulfonate calcium salt 5%, Sodium Polyacrylate 2%, DBSA 4%, silicone oil 0.1%, xanthan gum 0.3%, phenyl phenol polyoxy ethyl ether 2%, deionized water adds to 100%, mixes and makes 40% pyraclostrobin Isoprothiolane suspending agent.
Embodiment 6 30% pyraclostrobin Isoprothiolane suspending agents
Pyraclostrobin 5%, Isoprothiolane 25%, polycarboxylate 4%, soapberry powder 5%, silicone compound 0.1%, hydroxyethylcellulose 0.1%, ethylene glycol 2%, alkyl benzene calcium sulfonate 2%, deionized water adds to 100%, mixes and makes 30% pyraclostrobin Isoprothiolane suspending agent.
Embodiment 7 48% pyraclostrobin isoprothiolane emulsion in waters
Pyraclostrobin 8%, Isoprothiolane 40%, fatty alcohol-polyoxyethylene ether 6%, alkylbenzenesulfonate 4%, C3-C6 alcohol 5%, polyethylene glycol 2%, gelatin 2%, silicone oil 0.4%, deionized water supplies 100%, mixes and makes 48% pyraclostrobin isoprothiolane emulsion in water.
Embodiment 8 15% pyraclostrobin isoprothiolane emulsion in waters
Pyraclostrobin 5%, Isoprothiolane 10%, phenethyl phenol polyethenoxy ether 7%, alkylbenzenesulfonate 5%, C3-C6 alcohol 5%, glycerine 4%, gum Arabic 1%, silicone oil 0.4%, deionized water supplies 100%, mixes and makes 15% pyraclostrobin isoprothiolane emulsion in water.
Embodiment 9 40% pyraclostrobin Isoprothiolane microemulsions
By pyraclostrobin 20%, Isoprothiolane 20%, tween 4%, alkylbenzenesulfonate 3%, phenethyl phenol polyethenoxy ether phosphate 5%, xanthans 2%, propane diols 3%, silicone oil 0.4%, deionized water is supplied 100%, 40% pyraclostrobin Isoprothiolane microemulsion.
Embodiment 10 20% pyraclostrobin Isoprothiolane microemulsions
By pyraclostrobin 16%, Isoprothiolane 4%, alkylphenol polyoxyethylene phosphate 3%, castor oil polyoxyethylene ether 5%, gelatin 2%, glycerine 3%, silicone oil 0.4%, deionized water is supplied 100%, 20% pyraclostrobin Isoprothiolane microemulsion.
(2) pyraclostrobin iprobenfos
Embodiment 11 81% pyraclostrobin iprobenfos wetting powders
Pyraclostrobin 1%, iprobenfos 80%, alkylphenol-polyethenoxy are phonetic 3%, lauryl sodium sulfate 4%, white carbon add to 100%, mix and make 81% pyraclostrobin iprobenfos water dispersible granules.
Embodiment 12 65% pyraclostrobin iprobenfos wetting powders
Pyraclostrobin 15%, iprobenfos 50%, polycarboxylate 4%, lauryl sodium sulfate 4%, white carbon 15%, diatomite add to 100%, mix and make 65% pyraclostrobin iprobenfos water dispersible granules.
Embodiment 13 75% pyraclostrobin iprobenfos water dispersible granules
Pyraclostrobin 10%, iprobenfos 65%, polycarboxylate 3%, lignosulfonates 3%, lauryl sodium sulfate 4%, sodium bicarbonate 3%, white carbon 7%, bentonite add to 100%, mix and make 75% pyraclostrobin iprobenfos water dispersible granules.
Embodiment 14 48% pyraclostrobin iprobenfos water dispersible granules
Pyraclostrobin 40%, iprobenfos 8%, alkylphenol-polyethenoxy are phonetic 4%, DBSA 4%, white carbon 5%, ammonium sulfate 12%, kaolin add to 100%, mix and make 48% pyraclostrobin iprobenfos water dispersible granules.
Embodiment 15 40% pyraclostrobin iprobenfos suspending agents
Pyraclostrobin 20%, iprobenfos 20%, polycarboxylate 4%, soapberry powder 5%, silicone compound 0.1%, hydroxyethylcellulose 0.1%, ethylene glycol 2%, alkyl benzene calcium sulfonate 2%, deionized water adds to 100%, mixes and makes 40% pyraclostrobin iprobenfos suspending agent.
Embodiment 16 36% pyraclostrobin iprobenfos suspending agents
Pyraclostrobin 6%, iprobenfos 30%, polycarboxylate 2%, Nekal BX 2%, C10-20 saturated fat acid compounds 0.1%, polyethylene glycol 0.5%, ethylene glycol 4%, phenethyl phenol polyoxy ethyl polypropylene-base ether 1%, deionized water adds to 100%, mixes and makes 36% pyraclostrobin iprobenfos suspending agent.
Embodiment 17 40% pyraclostrobin iprobenfos microemulsions
By pyraclostrobin 5%, iprobenfos 35%, ethylene glycol 4%, polyvinyl alcohol 2%, nonionic EO-PO block copolymer 8%, alkylbenzenesulfonate 3%, silicone oil 0.4%, deionized water supplies 100%, makes 40% pyraclostrobin iprobenfos microemulsion.
Embodiment 18 10% pyraclostrobin iprobenfos microemulsions
By pyraclostrobin 8%, iprobenfos 2%, sapn series 8%, aliphatic alcohol polyoxyvinethene phosphate 7%, propane diols 3%, gelatin 1%, silicone oil 0.4%, deionized water is supplied 100%, 10% pyraclostrobin iprobenfos microemulsion.
Embodiment 19 50% pyraclostrobin Iprobenfos aqueous emulsions
By pyraclostrobin 10%, iprobenfos 40%, fatty alcohol-polyoxyethylene ether 6%, alkylbenzenesulfonate 4%, C3-C6 alcohol 5%, polyethylene glycol 2%, gelatin 2%, silicone oil 0.4%, deionized water supplies 100%, makes 50% pyraclostrobin Iprobenfos aqueous emulsion.
Embodiment 20 11% pyraclostrobin Iprobenfos aqueous emulsions
By pyraclostrobin 10%, iprobenfos 1%, castor oil polyoxyethylene ether 6%, C3-C6 alcohol 5%, gelatin 0.5%, glycerine 4%, sodium chloride 2%, silicone oil 0.4%, deionized water supplies 100%, makes 11% pyraclostrobin Iprobenfos aqueous emulsion.
Embodiment applies the bactericidal composition control rice blast test of pesticide effectiveness of three pyraclostrobin-containings
This experimental establishment is at Heilongjiang Province's Fuyuan County, test medicine is researched and developed, is provided by Shanxi Thompson Biological Technology Co., Ltd., contrast medicament 40% Isoprothiolane wetting powder (commercial), 40% iprobenfos missible oil (commercial), 25% pyraclostrobin missible oil (commercial).
The investigation rice blast state of an illness before medicine, in the dispenser for the first time of state of an illness initial stage, dispenser in every 7 days once, is total to dispenser 2 times.Within after dispenser 7 days, 14 days, 30 days for the second time, investigate respectively rice blast disease index and calculate preventive effect.Experimental result is as follows:
The bactericidal composition control rice blast test of pesticide effectiveness of table 3 pyraclostrobin-containing
As can be seen from Table 3, after pyraclostrobin and Isoprothiolane or iprobenfos are composite, can effectively prevent and treat rice blast, control efficiency is all better than contrasting medicament, and the lasting period is long.In test scope of medication, target crop is had no adverse effects, preventive effect reaches more than 90%.
Implementation of an application example four: the bactericidal composition of pyraclostrobin-containing is prevented and treated the rice sheath blight disease test of pesticide effectiveness
This experimental establishment is taken Hei Lin town, Honghu City in Hubei, test medicine is researched and developed, is provided by Shanxi Thompson Biological Technology Co., Ltd., contrast medicament 40% Isoprothiolane wetting powder (commercial), 40% iprobenfos missible oil (commercial), 25% pyraclostrobin missible oil (commercial).
Investigation rice sheath blight disease state of an illness radix before medicine, in their early stage dispenser, once, dispenser 2 times, investigates respectively disease index and calculates preventive effect for after dispenser 7 days, 14 days for the second time altogether in dispenser in every 7 days.Experimental result is as follows:
The bactericidal composition of table 4 pyraclostrobin-containing is prevented and treated the rice sheath blight disease test of pesticide effectiveness
As can be seen from Table 4, after pyraclostrobin and Isoprothiolane or iprobenfos are composite, can effectively prevent and treat rice sheath blight disease and occur, control efficiency is all better than contrasting medicament, in this test scope of medication, target crop is had no adverse effects, and bakanae disease of rice is had to good preventive effect, preventive effect reaches more than 90%.
Claims (5)
1. a bactericidal composition that contains pyraclostrobin, is characterized in that: the weight ratio of bactericidal composition effective active composition A pyraclostrobin and B Isoprothiolane is 5 ︰ 1 ~ 1 ︰ 5.
2. the bactericidal composition of pyraclostrobin-containing according to claim 1, is characterized in that: wherein effective active component content accounts for 1～90% of gross weight.
3. the bactericidal composition of pyraclostrobin-containing according to claim 2, is characterized in that: wherein effective active component content accounts for 10～80% of gross weight.
4. the bactericidal composition of pyraclostrobin-containing according to claim 1, is characterized in that: bactericidal composition is made wetting powder, water dispersible granules, suspending agent, aqueous emulsion, microemulsion.
5. the bactericidal composition of pyraclostrobin-containing according to claim 1 is for preventing and treating rice blast, the banded sclerotial blight of paddy rice, the purposes of bakanae disease.
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