CN102657187A - Bactericidal composition containing thifluzamide and trifloxystrobin - Google Patents
Bactericidal composition containing thifluzamide and trifloxystrobin Download PDFInfo
- Publication number
- CN102657187A CN102657187A CN2012101301011A CN201210130101A CN102657187A CN 102657187 A CN102657187 A CN 102657187A CN 2012101301011 A CN2012101301011 A CN 2012101301011A CN 201210130101 A CN201210130101 A CN 201210130101A CN 102657187 A CN102657187 A CN 102657187A
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- CN
- China
- Prior art keywords
- thifluzamide
- bactericidal composition
- bactericide
- bacterium ester
- oxime bacterium
- 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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- 239000005857 Trifloxystrobin Substances 0.000 title abstract description 11
- ONCZDRURRATYFI-TVJDWZFNSA-N trifloxystrobin Chemical compound CO\N=C(\C(=O)OC)C1=CC=CC=C1CO\N=C(/C)C1=CC=CC(C(F)(F)F)=C1 ONCZDRURRATYFI-TVJDWZFNSA-N 0.000 title abstract description 11
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- PTCGDEVVHUXTMP-UHFFFAOYSA-N flutolanil Chemical compound CC(C)OC1=CC=CC(NC(=O)C=2C(=CC=CC=2)C(F)(F)F)=C1 PTCGDEVVHUXTMP-UHFFFAOYSA-N 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 230000001408 fungistatic effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000019813 microcrystalline cellulose Nutrition 0.000 description 1
- 239000008108 microcrystalline cellulose Substances 0.000 description 1
- 229940016286 microcrystalline cellulose Drugs 0.000 description 1
- 235000010603 pastilles Nutrition 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 230000000361 pesticidal effect Effects 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229940051841 polyoxyethylene ether Drugs 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- AAEVYOVXGOFMJO-UHFFFAOYSA-N prometryn Chemical compound CSC1=NC(NC(C)C)=NC(NC(C)C)=N1 AAEVYOVXGOFMJO-UHFFFAOYSA-N 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 230000001018 virulence Effects 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
The invention relates to a bactericidal composition containing thifluzamide and trifloxystrobin, wherein the weight ratio of thifluzamide to trifloxystrobin is (100:1)-(1:100), particularly (20:1)-(1:20). Compared with a single bactericide, the bactericidal composition disclosed by the invention has a significant synergistic effect on rice sheath blight diseases, rice blasts and false smuts, therefore, the bactericidal effect is improved, and the effect implemented by using the bactericidal composition is obviously higher than that implemented by using the single bactericide; the bactericide application cost is low, and the environmental pollution and bactericide residues are reduced; and action sites are increased, thereby being beneficial for overcoming and delaying the generation of pesticide resistance among germs. The bactericidal composition disclosed by the invention has no obvious adverse effect on test crops, and the leaf colors and growing of the test crops are normal, therefore, the bactericidal composition is good in safety, and accords with the security requirements on pesticide preparations.
Description
Technical field
The present invention relates to a kind of agriculturally useful compositions and disinfectant use in agriculture, particularly a kind of agriculturally useful compositions and disinfectant use in agriculture that is used for banded sclerotial blight, false smut and the rice blast control of paddy rice.
Background technology
Rice sheath blight disease is the important disease in paddy rice producing region, is one of China paddy rice three big diseases, in each paddy rice producing region, the whole nation generation is arranged all, and the Yangtze river basin and southern rice district take place heavier, and especially the high-yield field with dense planting hybrid rice of short stem takes place the most general and serious.Mainly cause that by Deuteromycotina Rhizoctonia solani Kuhn sick (Rhizoctonia solani) disease is expanded from bottom to top, can arrive sword-like leave when serious, in addition the morbidity of fringe portion, large stretch of lodging.The heavier field piece of falling ill, the general underproduction 5%～10% seriously can reach 50%～70%.Along with the popularization of multi-spike-type kind of short stem, plant the raising of density and Fertilization Level, become an outstanding problem of rice high yield stable yields.
False smut is claimed pseudo-smut again, and the pathogen asexual stage returns the green pyrenomycetes of Deuteromycotina to belong to (Ustilaginoidea virens); Sexual generation is returned Ascomycotina Claviceps (Claviceps virens).All there is generation in most of rice district to this disease in the world, and China is also early on the books.Though double rice cropping system took place before the sixties in 20th century sporadicly to generation is arranged in south China, it is slight to cause harm, and is not noted by people.In recent years, along with cropping system changes, hybrid rice is promoted, working condition improves and the level of production improves, the generation of false smut is more and more serious, has risen in some areas to be main disease.This sick gesture that rising is year by year arranged, greater loss is caused in many places.In addition, because its infected seed is poisonous, if as feed, content reaches 0.5% when above, can cause that fowl raises chronic poisoning, internal organ generation pathology even death.
Rice blast takes place heavier, especially general and serious with the high-yield field generation of dense planting hybrid rice of short stem in the Yangtze river basin and southern rice district.Mainly cause that by Deuteromycotina Rhizoctonia solani Kuhn sick (Rhizoctonia solani) disease is expanded from bottom to top, can arrive sword-like leave when serious, in addition the morbidity of fringe portion, large stretch of lodging.The heavier field piece of falling ill, the general underproduction 5%～10% seriously can reach 50%～70%.Along with the popularization of multi-spike-type kind of short stem, plant the raising of density and Fertilization Level, become an outstanding problem of rice high yield stable yields.
Rice blast is one of important disease of paddy rice, can cause the paddy rice underproduction significantly, the underproduction 40%～50% when serious, even No kernels or seeds are gathered, as in a year of scarcity.Each rice district, the world evenly takes place.This disease all has generation in each paddy rice producing region of China, wherein occurs as manyly with leaf portion, joint portion, can cause the underproduction in various degree after the generation, and especially panicle blast or joint pest take place early and weigh, can cause dead ears so that has no harvest.
(trade name: full fringe), also claim the thiophene flutolanil, English common name Trifluzamide belongs to the thiazole amide bactericide to thifluzamide, is the new and effective systemic fungicide that Monsanto Company develops, and is the product that can buy acquisition on the market.It has special efficacy to the fungus-caused disease of Basidiomycetes such as banded sclerotial blight, damping off etc.Thifluzamide is the succinate dehydrogenase inhibitor, because fluorine-containing, its competitiveness in biochemical pathway is very strong, in case combine just to be difficult for recovering with substrate or enzyme.Pathomycetes such as Rhizoctonia, Puccinia, Ustilago, Tilletia, corticium, nuclear cavity Pseudomonas also all there is good preventive effect.Its structural formula is:
Oxime bacterium ester (Trifloxystrobin) is the genus methoxy acrylic novel fluorine wide-spectrum bactericide that Beyer Co., Ltd successfully develops; Characteristics such as having efficient, wide spectrum, protection, treat, root out, infiltration, systemic activity, resistance of rainwater washing against, lasting period are long can be bought acquisition on market.To 1, the bacterial strain of 4-demethylation enzyme inhibitor, benzamides, dicarboxyl amine and benzimidazole generation resistance is effective, does not have cross resistance with at present existing bactericide.Nearly all Mycophytes (Ascomycetes, Basidiomycetes, Oomycete and Fungi Imperfecti) disease such as powdery mildew, rust, Ying's rot, net blotch, downy mildew, rice blast etc. all there is good activity.Except that powdery mildew, leaf spot are had the special efficacy, rust, downy mildew, damping off, apple apple scab there is good activity.To crop safety, because of its at soil, capable of being fast degraded in the water, so environmentally safe.Its structural formula is:
With thifluzamide and oxime bacterium ester is the bactericidal composition of active ingredient, is used for the control of rice sheath blight disease, rice blast and false smut, can delay the drug-fast generation of germ, improves actual preventive effect, reduces drug cost, is the important means of disease integrated control.
Summary of the invention
The objective of the invention is to overcome problems such as single bactericide is single to the agricultural disease preventive and therapeutic effect, lasting period weak point, virulence deficiency, provide a kind of bactericidal effect good, delay pesticide resistance and the low bactericidal composition of drug cost.
Another object of the present invention provides the purposes that said bactericidal composition is used for banded sclerotial blight, rice blast and the false smut of paddy rice.
The present invention provides a kind of bactericidal composition, and said bactericidal composition contains thifluzamide and oxime bacterium ester, and wherein, the weight ratio of thifluzamide and oxime bacterium ester is 100: 1～1: 100.
Preferably, the weight ratio of thifluzamide and oxime bacterium ester is 20: 1～1: 20.
Bactericidal composition of the present invention also comprises one or more the mixture in weed killer herbicide, insecticide, protective agent, growth regulator, nutrient for plants or the soil conditioner.
The present invention also provides a kind of bactericide, and wherein said bactericide contains the above-mentioned bactericidal composition of 0.1～90 weight %, and surplus is acceptable carrier and an auxiliary agent on the agricultural chemicals.
Preferably, said bactericide contains the above-mentioned bactericidal composition of 5～80 weight %, and surplus is acceptable carrier and an auxiliary agent on the agricultural chemicals.
According to the preferred implementation of bactericide according to the invention, its formulation is suspending agent, aqueous emulsion, microemulsion, wetting powder or water dispersible granules.
The present invention also provides above-mentioned bactericidal composition in the application that prevents and treats rice sheath blight disease, rice blast and false smut.
The present invention also provides a kind of method of preventing and treating crop pest, before or after crops and/or fruit introduced disease, uses above-mentioned bactericidal composition or above-mentioned bactericide to the place of crops and/or fruit and growth or storage.
Below technical scheme of the present invention will be described in more detail:
The present invention provides a kind of bactericidal composition, and said bactericidal composition contains thifluzamide and oxime bacterium ester, and wherein, the weight ratio of thifluzamide and oxime bacterium ester is 100: 1～1: 100, particularly preferably 20: 1～1: 20.
The present invention also provides the bactericide that contains above-mentioned bactericidal composition, and said bactericide contains the above-mentioned bactericidal composition of 0.1～90 weight %, and surplus is acceptable carrier and an auxiliary agent on the agricultural chemicals.Particularly preferably, the content of above-mentioned bactericidal composition is 5～80 weight %.
Bactericidal composition of the present invention can also comprise one or more the mixture in weed killer herbicide, insecticide, protective agent, growth regulator, nutrient for plants or the soil conditioner.
Said weed killer herbicide is Acetochlor, alachlor, butachlor, atrazine, prometryn etc. for example; Said insecticide is flonicamid, bromine cyanogen insect amide etc. for example.These weed killer herbicides, insecticide, protective agent, growth regulator, nutrient for plants or soil conditioner are the product that can buy acquisition on the market.
Except as otherwise noted, " % " involved in the present invention is " percentage by weight ".
According to method known in those skilled in the art, bactericidal composition of the present invention can be mixed with the formulation that allows on the agricultural when practical application, and formulation is suspending agent, aqueous emulsion, microemulsion, wetting powder or water dispersible granules preferably.
To suspending agent, spendable auxiliary agent has: dispersant is selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, TERSPERSE 2425 (U.S. Huntsman Corporation produces, the alkyl naphthalene sulfonic acid salt); Wetting agent is selected from alkylphenol-polyethenoxy and gathers basic ether formaldehyde condensation products sulphate, alkylphenol-polyethenoxy base ether phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE 2500 (U.S. Huntsman Corporation product); Thickener is selected from xanthans, aluminium-magnesium silicate, bentonite; Preservative is selected from benzoic acid, Sodium Benzoate, BIT (1, the 2-benzisothiazole-3-ketone); Antifoaming agent is silicone based antifoaming agent; Antifreezing agent is selected from ethylene glycol, propane diols, glycerine, urea, inorganic salts such as sodium chloride.
To aqueous emulsion, spendable auxiliary agent has: emulsifier is selected from Nonyl pheno (EO=10) ether phosphate, triphen ethyl-phenol polyoxyethylene ether phosphate (agricultural newborn 600# phosphate), Nongru-700 #, agricultural newborn 2201#, Span-60#, emulsifier T-60, TX-10, agricultural newborn 1601#, agricultural newborn 600#, agricultural newborn 400#; Solvent is selected from xylol, toluene, cyclohexanone, solvent naphtha (trade mark: S-150, S-180, S-200); Stabilizing agent is selected from triphenyl phosphite, epoxychloropropane; Antifreezing agent is selected from ethylene glycol, propane diols, glycerine, urea, inorganic salts such as sodium chloride; Thickener is selected from xanthans, bentonite, aluminium-magnesium silicate; Preservative is selected from BIT (1, the 2-benzisothiazole-3-ketone), benzoic acid, Sodium Benzoate.
To microemulsion, spendable auxiliary agent has: emulsifier is selected from calcium dodecyl benzene sulfonate (agricultural newborn 500#), Nongru-700 #, agricultural newborn 2201#, this dish-60#, Tween-80, TX-10, farming breast 1601, agricultural newborn 600#, agricultural newborn 400#; Cosolvent is selected from methyl alcohol, isopropyl alcohol, n-butanol, ethanol; Solvent is selected from cyclohexanone, N-Methyl pyrrolidone, xylol, toluene, solvent naphtha (trade mark: S-150, S-180, S-200); Stabilizing agent is selected from triphenyl phosphite, epoxychloropropane.
To wetting powder, spendable auxiliary agent has: dispersant is selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate; Wetting agent is selected from alkyl sulfate, alkylsulfonate, naphthalene sulfonate; Filler is selected from diatomite, kaolin, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, potter's clay etc.
For water dispersible granules, those skilled in the art are familiar with the use corresponding adjuvants and accomplish the present invention very much.Dispersant is selected for use from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate; Wetting agent is selected from polyoxyethylene alcohol, alkyl sulfate, alkylsulfonate, naphthalene sulfonate; Disintegrant is selected from ammonium sulfate, urea, sucrose, glucose, citric acid, succinic acid, sodium bicarbonate; Binding agent is selected from diatomite, corn starch, PVA, carboxymethyl (ethyl) cellulose family and microcrystalline cellulose class; Filler is selected from diatomite, kaolin, white carbon, fine particle calcium carbonate, sepiolite, talcum powder, attapulgite, potter's clay etc.
Bactericidal composition of the present invention can provide with the finished product preparation form, and promptly each material mixes in the composition; Also can in bucket (jar), directly mix before using with the form of single agent formulation.Concentrate of the present invention mixes the concentration that obtains required active substance usually with water.
The present invention also provides above-mentioned bactericidal composition in the application that prevents and treats rice sheath blight disease and false smut.
The present invention also provides a kind of method of preventing and treating crop pest, before or after crops and/or fruit introduced disease, uses above-mentioned bactericidal composition or above-mentioned bactericide to the place of crops and/or fruit and growth or storage.
Compared with prior art, the present invention is through the use of uniting of thifluzamide and oxime bacterium ester, and its beneficial effect is:
(1) compare with single agent, bactericidal composition according to the invention has significant synergistic effect to disease, has improved bactericidal effect;
(2) reduce the medication number of times, reduce drug cost, reduce environmental pollution and residue of pesticide;
(3) composition is made up of the active ingredient of different effects mechanism, and the action site increase helps overcoming and delays the drug-fast generation of germ.
Embodiment
Come the present invention is further specified below in conjunction with specific embodiment, but do not limit the invention to these embodiments.One skilled in the art would recognize that the present invention contained in claims scope all alternatives, improvement project and the equivalents that possibly comprise.
One, preparation embodiment
Related " % " all is weight percentage in following all preparation proportionings; Term " active ingredient ratio " is the weight ratio of thifluzamide and oxime bacterium ester.
1, preparation suspending agent
Pressing formula rate, is medium with water, former medicine, dispersant, suspending agent and antifreezing agent etc. is joined shear 30min (for example rotating speed 3000r/min) in the high-shear emulsion machine, use the sand mill sand milling again after, obtain suspending agent.
Embodiment 1:24% thifluzamide oxime bacterium ester suspending agent (active ingredient was than 5: 1)
Take by weighing the former medicine of 20% thifluzamide, the former medicine of 4% oxime bacterium ester, 3%FS3000 (phosphate type anion surfactant), 1%TXC (sulfonic acid type anion surfactant), 0.1% xanthans, 1% aluminium-magnesium silicate, 5% ethylene glycol, 0.03%BIT (1; The 2-benzisothiazole-3-ketone), 0.3% organically-modified silicone antifoam agent, deionized water adds to 100%.Process slurry, carry out sand milling, obtain product.
Embodiment 2:30% thifluzamide oxime bacterium ester suspending agent (active ingredient was than 1: 1)
Take by weighing the former medicine of 15% thifluzamide, the former medicine of 15% oxime bacterium ester, 3%FS3000,1%JFC (AEO), 0.2% xanthans, aluminium-magnesium silicate 1%, 5% ethylene glycol, 0.3% benzoic acid, 0.5% organically-modified silicone antifoam agent, deionized water adds to 100%.Process slurry, carry out sand milling, obtain product.
Embodiment 3:40.4% thifluzamide oxime bacterium ester suspending agent (active ingredient was than 100: 1)
Take by weighing the former medicine of 40% thifluzamide, the former medicine of 0.4% oxime bacterium ester, 3%FS3000,2%JFC (AEO), 0.1% xanthans, aluminium-magnesium silicate 1%, 5% ethylene glycol, 0.3% benzoic acid, 0.5% organically-modified silicone antifoam agent, deionized water adds to 100%.Process slurry, carry out sand milling, obtain product.
2, water dispersible granules
Embodiment 4:30% thifluzamide trifloxystrobin water dispersible granule (active ingredient was than 5: 1)
Take by weighing the former medicine of 25% thifluzamide, the former medicine of 5% oxime bacterium ester, 3.5%NNO (alkylnaphthalene sulfonate formaldehyde condensation products), 2.5% Nekal BX (nekal), 3%K-12 (lauryl sodium sulfate), 5% carboxymethyl (ethyl) cellulose, 5% diatomite, 5% glucose, kaolin and add to 100%.Mix, behind comminution by gas stream, granulate.
Press formula rate, former medicine and dispersant, wetting agent, binding agent, filler etc. are mixed, behind comminution by gas stream, obtain pulvis, add a certain amount of water and mix, in comminutor, carry out granulation, dry then, screening promptly gets granular product.
Embodiment 5:33% thifluzamide trifloxystrobin water dispersible granule (active ingredient was than 10: 1)
Take by weighing the former medicine of 30% thifluzamide, the former medicine of 3% oxime bacterium ester, 3.5%NNO (alkylnaphthalene sulfonate formaldehyde condensation products), 2% Nekal BX (nekal), 3%K-12 (lauryl sodium sulfate), 5% carboxymethyl (ethyl) cellulose, 10% diatomite, 5% glucose, kaolin and add to 100%.
The preparation process is with embodiment 4.
3, wetting powder
By the prescription requirement, various auxiliary agents, filler, former medicine are mixed after after the Roughpulverizer pulverizing, get into airslide disintegrating mill and fully pulverize the mixed wetting powder that gets.
Embodiment 6:60% thifluzamide oxime bacterium ester wetting powder (active ingredient was than 5: 1)
Take by weighing the former medicine of 50% thifluzamide, the former medicine of 10% oxime bacterium ester, 4%NNO, 2% Nekal BX, 5% white carbon, fine particle calcium carbonate and add to 100%.Mix, obtain product after the pulverizing.
Embodiment 7:80% thifluzamide oxime bacterium ester wetting powder (active ingredient was than 3: 1)
Take by weighing the former medicine of 60% thifluzamide, the former medicine of 20% oxime bacterium ester, 5% calcium lignosulfonate, 3% Nekal BX, 1%K-12,4% white carbon, kaolin and add to 100%.Mix, obtain product after the pulverizing.
Embodiment 8:51% thifluzamide oxime bacterium ester wetting powder (active ingredient was than 50: 1)
Take by weighing the former medicine of 50% thifluzamide, the former medicine of 1% oxime bacterium ester, 5% calcium lignosulfonate, 2% Nekal BX, 1%K-12,3% white carbon, kaolin and add to 100%.Mix, obtain product after the pulverizing.
4, microemulsion
Embodiment 9:18% thifluzamide oxime bacterium ester microemulsion (active ingredient was than 1: 5)
Take by weighing the former medicine of 3% thifluzamide, the former medicine of 15% oxime bacterium ester, 5% Nongru-700 #, 5% agricultural newborn 500#, 6% agricultural newborn 1601#, 15% cyclohexanone, 5%N-methyl pyrrolidone, 5% n-butanol, through dissolving fully and mixing, deionized water adds to 100%.After stirring, obtain product.
Embodiment 10:22% thifluzamide oxime bacterium ester microemulsion (active ingredient was than 10: 1)
Take by weighing the former medicine of 20% thifluzamide, the former medicine of 2% oxime bacterium ester, 5% agricultural newborn 2201#, 5% agricultural newborn 500#, 6% agricultural newborn 1601#, 15% cyclohexanone, 5%N-methyl pyrrolidone, 5% isopropyl alcohol, through dissolving fully and mixing, deionized water adds to 100%.After stirring, obtain product.
Embodiment 11:36% thifluzamide oxime bacterium ester microemulsion (active ingredient was than 1: 5)
Take by weighing the former medicine of 6% thifluzamide, the former medicine of 30% oxime bacterium ester, 5% agricultural newborn 2201#, 5% agricultural newborn 500#, 6% agricultural newborn 1601#, 20% cyclohexanone, 5%N-methyl pyrrolidone, 5% isopropyl alcohol, through dissolving fully and mixing, deionized water adds to 100%.After stirring, obtain product.
Embodiment 12:51% thifluzamide oxime bacterium ester microemulsion (active ingredient was than 1: 50)
Take by weighing the former medicine of 1% thifluzamide, the former medicine of 50% oxime bacterium ester, 5% agricultural newborn 2201#, 5% agricultural newborn 500#, 5% agricultural newborn 1601#, 25% cyclohexanone, 5%N-methyl pyrrolidone, 3% isopropyl alcohol, through dissolving fully and mixing, deionized water adds to 100%.After stirring, obtain product.
5, aqueous emulsion
Embodiment 13:5% thifluzamide trifloxystrobin water emulsion (active ingredient was than 4: 1)
Take by weighing the former medicine of 4% thifluzamide, the former medicine of 1% oxime bacterium ester, 3% agricultural newborn 2201#, 2% Nonyl pheno (EO=10) ether phosphate, 2% agricultural newborn 600# acid phosphatide, 15% cyclohexanone, 10% solvent naphtha S150, mixed dissolution obtains oil phase.With 5% ethylene glycol, 0.3% xanthans, 0.03%BIT (1, the 2-benzisothiazole-3-ketone), deionized water adds to 100%, is made into water.Oil phase adds aqueous phase and fully mixes, and behind high-shear emulsifying, obtains product.
Embodiment 14:5% thifluzamide trifloxystrobin water emulsion (active ingredient was than 1: 1)
Take by weighing the former medicine of 2.5% thifluzamide, the former medicine of 2.5% oxime bacterium ester, 3.5% agricultural newborn 2201#, 2% Nonyl pheno (EO=10) ether phosphate, 1.5% agricultural newborn 600# acid phosphatide, 15% cyclohexanone, 10% solvent naphtha S150, mixed dissolution obtains oil phase.With 5% ethylene glycol, 0.3% xanthans, 0.03%BIT (1, the 2-benzisothiazole-3-ketone), deionized water adds to 100%, is made into water.Oil phase adds aqueous phase and fully mixes, and behind high-shear emulsifying, obtains product.
Embodiment 15:11% thifluzamide trifloxystrobin water emulsion (active ingredient was than 1: 10)
Take by weighing the former medicine of 1% thifluzamide, the former medicine of 10% oxime bacterium ester, 3% agricultural newborn 2201#, 2% Nonyl pheno (EO=10) ether phosphate, 2% agricultural newborn 600# acid phosphatide, 15% cyclohexanone, 15% solvent naphtha S150, mixed dissolution obtains oil phase.With 5% ethylene glycol, 0.3% xanthans, 0.03%BIT (1, the 2-benzisothiazole-3-ketone), deionized water adds to 100%, is made into water.Oil phase adds aqueous phase and fully mixes, and behind high-shear emulsifying, obtains product.
Embodiment 16:11% thifluzamide trifloxystrobin water emulsion (active ingredient was than 1: 50)
Take by weighing the former medicine of 0.5% thifluzamide, the former medicine of 25% oxime bacterium ester, 3% agricultural newborn 2201#, 2% Nonyl pheno (EO=10) ether phosphate, 2% agricultural newborn 600# acid phosphatide, 15% cyclohexanone, 15% solvent naphtha S150, mixed dissolution obtains oil phase.With 5% ethylene glycol, 0.3% xanthans, 0.03%BIT (1, the 2-benzisothiazole-3-ketone), deionized water adds to 100%, is made into water.Oil phase adds aqueous phase and fully mixes, and behind high-shear emulsifying, obtains product.
Embodiment 17:30.3% thifluzamide trifloxystrobin water emulsion (active ingredient was than 1: 100)
Take by weighing the former medicine of 0.3% thifluzamide, the former medicine of 30% oxime bacterium ester, 3% agricultural newborn 2201#, 2% Nonyl pheno (EO=10) ether phosphate, 2% agricultural newborn 600# acid phosphatide, 15% cyclohexanone, 20% solvent naphtha S150, mixed dissolution obtains oil phase.With 5% ethylene glycol, 0.3% xanthans, 0.03%BIT (1, the 2-benzisothiazole-3-ketone), deionized water adds to 100%, is made into water.Oil phase adds aqueous phase and fully mixes, and behind high-shear emulsifying, obtains product.
Two, biologically active embodiment
Biologically active embodiment is divided into indoor biologically active embodiment and land for growing field crops biologically active embodiment.
Active instance 1: the composite Toxicity Determination of thifluzamide and oxime bacterium ester to rice sheath blight disease
Experiment target is designated as rice sheath blight disease (Rhizoctonia solani), and test adopts the co-toxicity coefficient method to estimate the co-toxicity effect of complex preparation, clearly than reasonable proportioning.
Thifluzamide and oxime bacterium ester are dissolved with DMF respectively; Be mixed with the soup of series concentration again with 0.1% Tween-80 aqueous solution dilution; In superclean bench, draw the conical flask of 6mL respectively to sterilization; The PDA+100mg/LSHAM medium 54mL that adds about 50 ℃ pours the plate of 4 diameter 9cm into after shaking up, process the toxic medium of 4 respective concentration; Use the same method the thifluzamide and the oxime bacterium ester series concentration compound solution of different proportionings are processed toxic medium.With the rice sheath blight disease pathogen of cultivating 2 days, break into the bacterium piece with the card punch of diameter 5mm at colony edge, with transfer needle the bacterium piece is moved to the toxic PDA medium central authorities that are mixed with in advance, place cultivation in 25 ℃ of incubators then, every processing repetition 4 times.After 3 days, adopt the right-angled intersection method to measure and respectively handle colony diameter cm, obtain to proofread and correct and suppress percentage with slide calliper rule.Two diameters are surveyed in each bacterium colony right-angled intersection, represent the bacterium colony size with its mean.Obtain the colony growth inhibiting rate by following formula: colony growth inhibiting rate %=(the blank bacterium colony increases diameter-chemicals treatment bacterium colony and increases diameter) * 100/ blank bacterium colony increases diameter
On the basis of medicament bacteriostasis rate, carry out the data analysis statistics with " DPS data handling system " 3.11 professional versions, obtain regression line, EC50, correlation coefficient.Each EC50 that handles that will measure according to Sun Yunpei (Y-P Sun) method is converted into actual poison exponent (ATI); According to the proportioning of mixture, calculate theoretical poison exponent (TTI), calculate the co-toxicity coefficient (CTC) of mixture by following formula.
Theory is used the content (%) of toxicity index * A in using with of toxicity index (TTI)=A with
The content (%) of toxicity index * B of+B in using with
If co-toxicity coefficient is greater than 120, showing has synergistic effect; If be starkly lower than 100, be indicated as antagonism; Between 100～120, be indicated as summation action.
The composite Toxicity Determination result of table 1 thifluzamide and oxime bacterium ester to rice sheath blight disease
Active instance 2: the composite Toxicity Determination of thifluzamide and oxime bacterium ester to rice green smut
Experiment target is designated as rice green smut (Ustilaginoidea virens), and test adopts the co-toxicity coefficient method to estimate the co-toxicity effect of complex preparation, clearly than reasonable proportioning.
Thifluzamide and oxime bacterium ester are dissolved with DMF respectively, be mixed with the soup of series concentration again with 0.1% Tween-80 aqueous solution dilution, again thifluzamide is processed preset series concentration compound solution with oxime bacterium ester respectively by different proportionings.On the PDA medium, cultivated 3 of the mycelia pieces (diameter 5mm) of 14d at 100mL PSB inoculation of medium, 26 ℃ of constant temperature shake the spore mycelia suspension of training 14d, cross the elimination mycelia with the individual layer medical husky cloth of sterilizing, and spore suspension supplies test to use.Preliminary experiment design of series concentration liquid is pressed in each single agent and compound drug respectively, joined and process the pastille liquid nutrient medium in the PSB liquid nutrient medium.Dress dilution 20mL in the triangular flask of every 50mL, 4 bottles of every concentration.Establish blank simultaneously.This process is in strict accordance with sterile working.Every triangular flask adds cultivates subsequent use spore suspension bacterial classification 2mL, and 26 ℃ of constant temperature shake training 12d (rotating speed 120r/min), static cultivation 2d.Pour out mycelia, the mycelia dry weight is claimed in 60 ℃ of oven dry.Calculate the fungistatic effect of each chemicals treatment, bacteriostasis rate (%)=(blank mycelia dry weight-chemicals treatment mycelia dry weight) * 100/ blank mycelia dry weight.
On the basis of medicament bacteriostasis rate, carry out the data analysis statistics with " DPS data handling system " 3.11 professional versions, obtain regression line, EC50, correlation coefficient.EC that each that will measure according to Sun Yunpei (Y-P Sun) method handled
50Be converted into actual poison exponent (ATI); According to the proportioning of mixture, calculate theoretical poison exponent (TTI), calculate the co-toxicity coefficient (CTC) of mixture by following formula.
Theory is used the content (%) of toxicity index * A in using with of toxicity index (TTI)=A with
The content (%) of toxicity index * B of+B in using with
If co-toxicity coefficient is greater than 120, showing has synergistic effect; If be starkly lower than 100, be indicated as antagonism; Between 100～120, be indicated as summation action.
The composite Toxicity Determination result of table 2 thifluzamide and oxime bacterium ester to rice green smut
Active instance 3: the composite Toxicity Determination of thifluzamide and oxime bacterium ester to rice blast
Experiment target is designated as rice blast (Pyricularia oryzae), and test adopts the co-toxicity coefficient method to estimate the co-toxicity effect of complex preparation, clearly than reasonable proportioning.
Thifluzamide and oxime bacterium ester are dissolved with DMF respectively, be mixed with the soup of series concentration again with 0.1% Tween-80 aqueous solution dilution, again thifluzamide is processed preset series concentration compound solution with oxime bacterium ester respectively by different proportionings.With the rice blast pathogen of cultivating 8 days, break into the bacterium piece with the card punch of diameter 5mm at colony edge, with transfer needle the bacterium piece is moved to the toxic PDA medium central authorities that are mixed with in advance, place cultivation in 25 ℃ of incubators then, every processing repetition 4 times.After 8 days, adopt the right-angled intersection method to measure and respectively handle colony diameter cm, obtain the correction bacteriostasis rate with slide calliper rule.Two diameters are surveyed in each bacterium colony right-angled intersection, represent the bacterium colony size with its mean.Obtain bacteriostasis rate by following formula: colony growth inhibiting rate %=(the blank bacterium colony increases diameter-chemicals treatment bacterium colony and increases diameter) * 100/ blank bacterium colony increases diameter.
On the basis of medicament bacteriostasis rate, carry out the data analysis statistics with " DPS data handling system ", obtain regression line, EC50, correlation coefficient.EC that each that will measure according to Sun Yunpei (Y-P Sun) method handled
50Be converted into actual poison exponent (ATI); According to the proportioning of mixture, calculate theoretical poison exponent (TTI), calculate the co-toxicity coefficient (CTC) of mixture by following formula.
Theory is used the content (%) of toxicity index * A in using with of toxicity index (TTI)=A with
The content (%) of toxicity index * B of+B in using with
If co-toxicity coefficient is greater than 120, showing has synergistic effect; If be starkly lower than 100, be indicated as antagonism; Between 100～120, be indicated as summation action.
The composite Toxicity Determination result of table 3 thifluzamide and oxime bacterium ester to rice blast
Can find out that from The above results thifluzamide and oxime bacterium ester are mixed, in weight ratio is 100: 1～1: 100 scope, rice sheath blight disease, false smut and rice blast all shown as synergistic effect.The wherein wt ratio is that the interior synergistic effect of 20: 1～1: 20 scope is the most obvious.The result shows that thifluzamide and oxime bacterium ester are mixed and have reasonability and feasibility.
Field application test 1: prevent and treat the rice sheath blight disease field control effectiveness test
According to the regulation of medicine inspecting institute of the Ministry of Agriculture " GB/T 17980.20-2000 pesticide field efficacy medicine test criterion ()---bactericidal agent for preventing and treating rice sheath blight disease ", the sub-district of test medicine, contrast medicament and blank is handled and is adopted district's group arrangement at random, sub-district area 15m
2, 4 repetitions, this test amounts to twice of dispenser.Be in their early stage during dispenser for the first time, execute medicine for the second time after two weeks.This test is investigated 2 times altogether, and 5 samplings of diagonal are adopted in every experimental plot, and every some investigation links to each other 5 clumps, and totally 25 clumps, record disease grade.
The disease grade scale is following:
0 grade: complete stool is anosis;
1 grade: quaterfoil and following each leaf sheath thereof, blade morbidity (is first leaf with sword-like leave);
3 grades: the 3rd leaf and following each leaf sheath thereof, blade morbidity;
5 grades: second leaf and following each leaf sheath thereof, blade morbidity;
7 grades: sword-like leave blade and following each leaf sheath thereof, blade morbidity;
9 grades: the complete stool morbidity, withered ahead of time.
The drug effect computational methods:
According to investigation result, calculate disease index and preventive effect according to following (1), (2) formula.
In the formula: CK
0, CK
1Be respectively the forward and backward disease index of blank district dispenser; PT
0, PT
1Be respectively the forward and backward disease index of chemicals treatment district medicine.
Table 4 is prevented and treated rice sheath blight disease field control effectiveness test result
Field application test 2: control rice green smut field control effectiveness test
The sub-district of test medicine, contrast medicament and blank is handled and is adopted district's group arrangement at random, sub-district area 20m
2, 4 repetitions, this test amounts to twice of dispenser.Be in their early stage during dispenser for the first time, execute medicine for the second time after 1 week.5 samplings of diagonal are adopted in every experimental plot, and every some investigation links to each other 5 clumps, totally 25 clumps, investigate the infected seed number of each sub-district, record disease grade.
The disease grade scale is following:
0 grade: anosis;
1 grade: 1 granulosis grain;
2 grades: 2～5 granulosis grains;
3 grades: 6～10 granulosis grains;
4 grades: 11～15 granulosis grains;
5 grades: 16 above infected seeds.
The drug effect computational methods:
According to investigation result, calculate disease index and preventive effect according to following (1), (2) formula.
In the formula: CK
0, CK
1Be respectively the forward and backward disease index of blank district dispenser; PT
0, PT
1Be respectively the forward and backward disease index of chemicals treatment district medicine.
Table 5 control rice green smut field control effectiveness test result
Field application test 3: control rice blast field control effectiveness test
The sub-district of test medicine, contrast medicament and blank is handled and is adopted district's group arrangement at random, sub-district area 20m
2, 4 repetitions, this test amounts to twice of dispenser.Be in paddy rice before heading stage during dispenser for the first time, full heading time is executed medicine for the second time.5 samplings of diagonal are adopted in every experimental plot, and every some investigation 50 strains more than every some investigation of fringe pest 50 fringes, are the unit record classification with the fringe, record disease grade.
The disease grade scale is following:
0 grade: anosis;
1 grade: every fringe loss 5% is (morbidity of indivedual branch stalk) once;
3 grades: every fringe loss 6%～20% (branch stalk morbidity about 1/3);
5 grades: every fringe loss 21%～50% (fringe neck or main shaft morbidity, grain half is flat);
7 grades: every fringe loss 51%～70% (morbidity of fringe neck, big portion shrivelled kernel);
9 grades: every fringe loss 71%～100% (morbidity of fringe neck causes dead ears).
The drug effect computational methods:
According to investigation result, calculate disease index and preventive effect according to following (1), (2) formula.
In the formula: CK
0, CK
1Be respectively the forward and backward disease index of blank district dispenser; PT
0, PT
1Be respectively the forward and backward disease index of chemicals treatment district medicine.
Table 6 control rice blast field control effectiveness test result
Above-mentioned indoor biometrics and field control effectiveness test result show that the beneficial effect that bactericidal composition according to the invention produces is:
(1) compares with single agent; This bactericidal composition has remarkable role in synergy to rice sheath blight disease, rice blast and false smut; Improved bactericidal effect, particularly in the active ingredient ratio was 20: 1～1: 20 scope, its effect was apparently higher than the single bactericide of independent use;
(2) lower drug cost, reduce environmental pollution and residue of pesticide;
(3) composition is made up of the active ingredient of different effects mechanism, and the action site increase helps overcoming and delays the drug-fast generation of germ.The present composition does not all have obvious harmful effect to trial crops, and leaf look, growing way etc. are all normal, and safety is good, meets the security requirement of pesticidal preparations.
Bactericidal composition according to the invention has good preventive effect to rice sheath blight disease, rice blast and false smut.
Claims (8)
1. bactericidal composition, said bactericidal composition contains thifluzamide and oxime bacterium ester, it is characterized in that the weight ratio of thifluzamide and oxime bacterium ester is 100: 1～1: 100.
2. bactericidal composition according to claim 1 is characterized in that the weight ratio of thifluzamide and oxime bacterium ester is 20: 1～1: 20.
3. bactericidal composition according to claim 1 and 2 is characterized in that said bactericidal composition also comprises one or more the mixture in weed killer herbicide, insecticide, protective agent, growth regulator, nutrient for plants or the soil conditioner.
4. a bactericide is characterized in that said bactericide contains claim 1 or the 2 described bactericidal compositions of 0.1～90 weight %, and surplus is acceptable carrier and an auxiliary agent on the agricultural chemicals.
5. bactericide according to claim 4 is characterized in that said bactericide contains claim 1 or the 2 described bactericidal compositions of 5～80 weight %, and surplus is acceptable carrier and an auxiliary agent on the agricultural chemicals.
6. bactericide according to claim 5 is characterized in that its formulation is suspending agent, aqueous emulsion, microemulsion, wetting powder or water dispersible granules.
According to the described bactericidal composition of each claim among the claim 1-3 in the application that prevents and treats rice sheath blight disease, false smut and rice blast.
8. a method of preventing and treating crop pest before or after crops and/or fruit introduced disease, is used claim 1 or 2 described bactericidal compositions or the described bactericide of claim 5 to the place of crops and/or fruit and growth or storage.
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| CN103371153A (en) * | 2012-04-28 | 2013-10-30 | 陕西韦尔奇作物保护有限公司 | Sterilization composition with thifluzamide and methoxy acrylics |
| CN103563917A (en) * | 2012-08-04 | 2014-02-12 | 南京华洲药业有限公司 | Bactericidal composition containing thifluzamide and trifloxystrobin and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102239852A (en) * | 2011-07-27 | 2011-11-16 | 南宁市德丰富化工有限责任公司 | Fungicide containing trifloxystrobin and thifluzamide |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102239852A (en) * | 2011-07-27 | 2011-11-16 | 南宁市德丰富化工有限责任公司 | Fungicide containing trifloxystrobin and thifluzamide |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103371153A (en) * | 2012-04-28 | 2013-10-30 | 陕西韦尔奇作物保护有限公司 | Sterilization composition with thifluzamide and methoxy acrylics |
| CN103371153B (en) * | 2012-04-28 | 2016-12-14 | 陕西韦尔奇作物保护有限公司 | Bactericidal composition containing thifluzamide Yu methoxy acrylic |
| CN103563917A (en) * | 2012-08-04 | 2014-02-12 | 南京华洲药业有限公司 | Bactericidal composition containing thifluzamide and trifloxystrobin and application thereof |
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Address after: 311106 No. 172, Zhangjiadun Road, Tangqi Town, Linping District, Hangzhou, Zhejiang Patentee after: Zhejiang Yulong Pharmaceutical Co.,Ltd. Address before: No. 172, zhangjiadun Road, Tangqi Town, Yuhang District, Hangzhou City, Zhejiang Province, 311106 Patentee before: Hangzhou Udragon Chemical Co.,Ltd. |