CN101796955B - Composite bactericidal composite and applications thereof - Google Patents
Composite bactericidal composite and applications thereof Download PDFInfo
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- CN101796955B CN101796955B CN 200910312775 CN200910312775A CN101796955B CN 101796955 B CN101796955 B CN 101796955B CN 200910312775 CN200910312775 CN 200910312775 CN 200910312775 A CN200910312775 A CN 200910312775A CN 101796955 B CN101796955 B CN 101796955B
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Abstract
The invention belongs to the technical field of pesticide formulation and in particular relates to a composite bactericidal composite and applications thereof in aspect of preventing and curing the fungicidal and bacteria diseases of grains, fruits and vegetables. The composite bactericidal composite comprises effective ingredient A and B, wherein the effective ingredient A is prochloraz or other metal salt composite, and the effective ingredient B comprises at least one of penconazole, imazalil sulfate, ethirimol, bupirimate, SYP-Z048, thifluzamide, mandipropamid, ethaboxam, polyoxin, polyoxin B, benziothiazolinone, famoxadone, dithianon and zinc thiazole. The composite has high efficiency, low toxicity, low residue, good environment compatibility and low cost.
Description
Technical field
The invention belongs to the technical field of agriculture chemical compounding, be specifically related to a kind of combination sterilization composition and the application aspect control cereal, fruit tree and vegetable crop fungi, bacteriosis thereof.
Background technology
Prochloraz, English name (prohloraz), chemical name is: N-propyl group-N-[α-(2,4,6-Trichlorophenoxy)-1H-imidazoles-1-formamide, chemical structural formula:
Prochloraz; a kind of efficient, wide spectrum, low toxicity type bactericide; have the multiple action modes such as interior suction conduction, prevention protection treatment; the disease that various crop is caused by sac fungi and imperfect fungus has obvious preventive effect; also can use with most of bactericide, Insecticides (tech) ﹠ Herbicides (tech), preferably control efficiency is all arranged.The mechanism of action mainly is to work by the biosynthesis that suppresses sterol, and the multiple diseases on field crop, fruit and vegetable, turf and the ornamental plants is had treatment and eradicant action.This compound exists the mechanism of action single, and the shortcoming that develops immunity to drugs easily can produce plant growth during this compound high-load in addition and suppress, and cause poisoning, by composite its application dose that reduces, alleviates the poisoning risk.
Prochloraz slaine compound (as: N-propyl group-N-[2-(2,4,6-Trichlorophenoxy) ethyl]-1H-imidazoles-1-formamide-manganese chloride, the N-propyl group-[2-(2,4, the 6-Trichlorophenoxy) ethyl]-1H-imidazoles-1-formamide-copper chloride), chemical structure of general formula:
X representative (Mn in the formula
2+, Cu
2+, Zn
2+) etc. bivalent cation.
Prochloraz slaine compound, efficient, wide spectrum, the sterilization of low toxicity type, it is the compound that Prochloraz and some divalent metal chloride complexing form, has interior suction conduction, the fungus-caused various crop diseases such as sac fungi, imperfect fungus there is good preventive effect, simultaneously the safety of crop is also improved.The mechanism of action mainly is to work by the biosynthesis that suppresses sterol, simultaneously contained manganese ion (Mn
2+) etc. metal ion also play good antibiotic and sterilizing effect, to the multiple diseases on field crop, fruit and vegetable, turf and the ornamental plants have the treatment and eradicant action.This compound effects mode is single, uses separately resistance risk high.
Penconazole, English name (penconazole), chemical name is: 1-[2-(2,4-dichlorophenyl)-4-propyl group-1,3 dioxolanes-2-methyl]-1-hydrogen-1,2, the 4-triazole, structural formula:
Belonging to triazole bactericidal agent, is sterol demethylation inhibitor.Root, stem, leaf isoreactivity tissue by crop absorb, and can upwards conduct with body fluid in the plant body soon, can effectively prevent and treat the multiple fungal diseases such as various crop powdery mildews.This compound effects mode is single, uses separately resistance risk high.
Imazalil sulfate, English name (imazalil sulfate), chemical name is: (2-(2 for (±)-1-, 4-dichloro-benzenes ethyl)-2-(2-propylene oxygen) ethyl)-1H-imidazoles sulphate, interior absorption wide-spectrum bactericide, this medicine affects cell permeability of the membrane, physiological function and lipid anabolism, thereby destroys the cell membrane of mould, the simultaneously formation of mould fungus inhibition spore.This compound effects mode is single, uses separately resistance risk high.
The phonetic phenol of second, English name (ethirimol), chemical name is: 5-butyl-2-ethylamino-4-hydroxyl-6-methylpyrimidine, chemical structural formula:
The phonetic phenol of second is the miazines systemic fungicide.Be mainly used in preventing and treating the cereal crop powdery mildews such as barley, wheat, oat, also can prevent and treat the ground family crop powdery mildew.This compound effects mode is single, uses separately resistance risk high.
Bupirimate, English name (bupirimate), chemical name is: 5-butyl-2-ethylamino-6-methylpyrimidine-4-base dimethylamino sulfuric ester, chemical structural formula:
The bupirimate mechanism of action is adenosine deaminase inhibitors.Be systemic fungicide, have protection and therapeutic action.Can be absorbed rapidly by plant roots, stem, leaf, and in plant corpus, run to each position, so resistance of rainwater washing against.This compound effects mode is single, uses separately resistance risk high.
SYP-Z048, chemical name is: N-methyl-3-(4-chlorine) phenyl-5-methyl-5-pyridine-3-methyl-oxazolines, chemical structural formula:
SYP-Z048 belongs to the synthetic inhibition bactericide of sterol, can effectively control on the ground generation and the harm of leaf disease evil by the root dispenser.Bactericidal activity with wide spectrum has protection and therapeutic action and good interior absorption simultaneously.This compound effects mode is single, uses separately resistance risk high.
Famoxadone, English name (famoxadone), chemical name is: 3-anilino--5-methyl-5-(4-Phenoxyphenyl)-1,3-azoles quinoline-2, the 4-diketone, chemical structural formula:
Famoxadone, inhibitor of energy are the mitochondria electron transfer inhibitor; Cromoci oxidoreductase among the complex III there is inhibitory action.This compound effects mode is single, uses separately resistance risk high.
Mandipropamid, English name (mandipropamid), chemical name is: 2-(4-chloro-phenyl)-N-[2-(3-methoxyl group-4-(2-propargyl alcoholate)-phenyl)-ethyl group]-2-(2-propargyl alcoholate)-acetamide, belong to the CAA series bactericidal agent, the overwhelming majority is had good preventive effect by the microbial leaf diseases of Oomycete cause of disease.The spore that is in the sprouting stage is had high activity, can suppress in addition the formation of mycelial growth and spore.To being in preclinical plant disease stronger therapeutic action is arranged.Because the wax coat of leaf table has good affinity to this medicine, so this preparation has extraordinary lasting effect.This compound effects mode is single, uses separately resistance risk high.
Guardian, English name (ethaboxam), chemical name is: (RS)-and N-(a-cyano group-2-thienyl)-4-ethyl-2-(ethylamino)-1,3-thiazoles-5-formamide, chemical structural formula is as follows:
Guardian, the mechanism of action be to phytophthora in the history of life two stages of formation of mycelial growth and spore very high inhibition is arranged, but to the phytophthora sporangium sprout, the growth of sporangiocyst and zoospore be almost without any activity, this composition is mainly used in preventing and treating the microbial disease of Oomycete cause of disease such as downy mildew of garpe and potato late blight etc.This compound effects mode is single, uses separately resistance risk high.
Zinc thiazole, chemical name is: 2-amino-5-sulfydryl-1,3,4-thiadiazoles zinc, chemical structural formula is as follows:
Zinc thiazole is thiadiazole organic zinc bactericide, and the crop bacterial disease is had preferably control efficiency, is mainly used in bacterial blight of rice, bacterial stripe, citrus bacterial canker disease etc.This compound effects mode is single, uses separately resistance risk high.
The mould ketone of thiophene, English name (benziothiazolinone), chemical name is: BIT, chemical structural formula is as follows:
The mould ketone of thiophene is a kind of novel, wide-spectrum bactericide, and crop fungoid, bacterial disease are all had good preventive and therapeutic action, is mainly used in preventing and treating cucumber downy mildew.This compound effects mode is single, uses separately resistance risk high.
Thifluzamide, English name (thifluzamide), chemical name is: 2,6-, two bromo-2-methyl-4-trifluoromethoxy-4-Trifluoromethyl-1, the 3-thiazole-5-carbonyl acyl is for aniline, and chemical structural formula is as follows:
Thifluzamide has stronger systemic action, and the lasting period is long.Main Function is the succinate dehydrogenase that suppresses in the disease fungus tricarbonic acid cycle, causes thalline dead, the front control that is mainly used in rice sheath blight disease.This compound effects mode is single, uses separately resistance risk high.
Dithianon, English name (dithianon), chemical name: 2,3-dinitrile-Isosorbide-5-Nitrae-anthraquinone dithio, chemical structural formula:
Dithianon; be the organic sulfur series bactericidal agent, the mechanism of action mainly is to suppress a series of fungal enzymes by breathing with sulfur-containing group reaction and interference cell, causes at last germ dead; be mainly used in the protective fungicide of multiple leaf diseases, control Chinese cabbage downy mildew.This compound effects mode is single, uses separately resistance risk high.
Polyoxin, English name (polyoxin), chemical name is: 5-{[2-amino-5-O-(amino carbonyl)-2-deoxidation-L-xylosyl] amino }-1,5-dideoxy-1-[3,4-dihydro-5-(hydroxymethyl)-2,4-dioxo-1 (2H)-pyrimidine radicals]-the other furanose aldehydic acid of β-D-, chemical structural formula is as follows:
The broad-spectrum antibiotics class, inhale conduction in having preferably, its mechanism of action is to disturb the chitinous biosynthesis of germ cell wall, and germ tube is with after mycelium contacts medicament, expand the part, break, overflow cell inclusion, and can not normal development, cause death, suppress in addition germ and produce spore and scab expansion effect, this medicine does not have toxicity to animal, and plant is not had poisoning.Main controlling object has wheat powdery mildew, Alternaria alternate, cucumber downy mildew, cucurbits fusarium wilt, black fleck disease of ginseng, rice sheath blight disease, alternaria leaf spot of apple, strawberry and grape grey mould, the multiple fungal diseases such as forest spike top and Pear black spot.This compound effects mode is single, uses separately resistance risk high.
Have not yet to see the relevant report of Prochloraz (or its slaine compound) and the composite product of said medicine.
Summary of the invention
Purpose of the present invention is exactly the problem for above-mentioned existence, and a kind of bactericidal composition and application that contains Prochloraz or its slaine compound is provided, this complex composition, efficient, low toxicity, low-residual, good to Environmental compatibility, cost is low.
Combination sterilization composition of the present invention, comprise effective constituents A and B, wherein A is Prochloraz or its slaine compound, and B is selected from least a in penconazole, Imazalil sulfate, the phonetic phenol of second, bupirimate, SYP-Z048, thifluzamide, mandipropamid, Guardian, polyoxin, polyoxin B, the mould Tong, of thiophene famoxadone, dithianon or the zinc thiazole.
Wherein, the weight ratio of described effective constituents A and B is A: B=1: 100～100: 1.
As preferably, the weight ratio of described Prochloraz or its slaine compound and penconazole is 8: 1～1: 2;
The weight ratio of described Prochloraz or its slaine compound and Imazalil sulfate is 8: 1～1: 2;
The weight ratio of described Prochloraz or its slaine compound and the phonetic phenol of second is 8: 1～1: 2;
The weight ratio of described Prochloraz or its slaine compound and bupirimate is 8: 1～1: 2;
The weight ratio of described Prochloraz or its slaine compound and SYP-Z048 is 8: 1～1: 2;
The weight ratio of described Prochloraz or its slaine compound and thifluzamide is 8: 1～1: 2;
The weight ratio of described Prochloraz or its slaine compound and mandipropamid is 20: 1～1: 8;
The weight ratio of described Prochloraz or its slaine compound and Guardian is 20: 1～1: 8;
The weight ratio of described Prochloraz or its slaine compound and polyoxin is 20: 1～1: 8;
The weight ratio of described Prochloraz or its slaine compound and polyoxin B is 20: 1～1: 8;
The weight ratio of described Prochloraz or its slaine compound and the mould ketone of thiophene is 20: 1～1: 8;
Described Prochloraz or its slaine compound are Yu the weight ratio of famoxadone is 20: 1～1: 8;
The weight ratio of described Prochloraz or its slaine compound and dithianon is 20: 1～1: 8;
The weight ratio of described Prochloraz or its slaine compound and zinc thiazole is 20: 1～1: 8.
Wherein, the total weight percentage of described active ingredient is 1～90%.
Described bactericidal composition adds auxiliary agent and excipients, makes various preparations, and its formulation comprises wetting powder, suspending agent, water dispersible granules, aqueous emulsion or missible oil.
Described auxiliary agent and excipients comprise: solvent, emulsifier, antifreeze, defoamer, thickener, carrier (or filler), dispersant.
Described solvent is selected from: one or more in DMF, cyclohexanone, toluene, dimethylbenzene, dimethyl sulfoxide (DMSO), methyl alcohol, ethanol, 3-methyl cyclohexanol ketenes, NOP, N-pyrrolidones, propyl alcohol, butanols, ethylene glycol, diethylene glycol, ethylene glycol monomethyl ether, butyl ether, ethyl acetate, vegetable oil, the acetonitrile.
Described emulsifier is selected from: farming breast 500
#(alkyl benzene calcium sulfonate), OP series phosphate (polyoxyethylene nonylphenol ether phosphate), 600
#Phosphate (phenyl phenol polyoxy ethyl ether phosphate), styrene polyoxyethylene ether ammonium sulfate salt, alkyl biphenyl ether disulfonic acid magnesium salts, triethanolamine salt, farming breast 400
#(benzyl dimethyl phenol polyoxy ethyl ether), farming breast 600
#(phenyl phenol polyoxy ethyl ether), Nongru-700
#(alkylphenol-formaldehyde resin polyoxy ethyl ether), peaceful breast 36
#(phenethyl fluosite polyoxy ethyl ether), farming breast 1600
#(phenethyl phenol polyoxy ethyl polypropylene-base ether), ethylene oxide propylene oxide block copolymer, OP series (polyoxyethylene nonylphenol ether), By series (castor oil polyoxyethylene ether), farming breast 33
#(alkylaryl polyoxyethylene polyoxypropylene ether), farming breast 34
#In (alkylaryl polyoxyethylene poly-oxygen propylene aether), sapn series (sorbitan monostearate), tween series (sorbitan fatty acid ester APEO), the AEO series (fatty alcohol-polyoxyethylene ether) one or more.
Described antifreeze is selected from: one or more in ethylene glycol, propane diols, glycerine, the urea.
Described defoamer is selected from: silicone oil, silicone compound, C
10-20In saturated fat acid compounds, the CS-10 aliphatic alcohols compound one or more.
Described thickener is selected from: one or more in xanthans, cyanogen methylcellulose, cyanethyl cellulose, methylcellulose, Magnesiumaluminumsilicate, the polyvinyl alcohol.
Described carrier, filler are selected from: one or more in white carbon, precipitated calcium carbonate, potter's clay, attapulgite, kaolin, diatomite, bentonite, sepiolite, zeolite, river sand, quartz sand, the talcum powder.
Described dispersant is selected from: poly-naphthaldehyde sulfonate sodium, in methoxyl group fatty acid Sodium p-aminobenzene sulfonat, the sodium methylene bis-naphthalene sulfonate one or more.
Bactericidal composition of the present invention, be used for control by mastigomycetes, sac fungi, basidiomycetes, the fungus-caused crop pest of imperfect fungus, crops rust, powdery mildew, anthracnose, downy mildew, such as important plant diseases such as cucumber downy mildew, downy mildew of garpe, sigatoka, cladosporium leaf and fruit mould of tomato, pear scab, cucumber anthracnose, citrus anthracnose, rice sheath blight disease, the climing rots of watermelon.
Wherein the composition of Prochloraz (or its slaine) and zinc thiazole (or dithianon) is for bacterial blight of rice, cucumber bacterial angular leaf spot, and the bacteriosises such as shot hole of peach have good preventive and therapeutic effect.
Beneficial effect of the present invention is: said composition adopts Prochloraz or its slaine compound and another active ingredient to carry out composite, compare with single product, characteristics with binary bactericidal composition, enlarged effective active control spectrum, for cereal, the control of fruit tree and vegetable disease has obvious synergistic effect, thereby dosage and access times have been reduced, easy to use, saving of work and time, also saved cost, what is more important has obtained certain alleviation for the germ resistance problem, has delayed the generation of disease drug resistance, lasting period is long, and reduce pollution to environment, and effectively alleviated the pressure to environment, be conducive to the Environmental Health sustainable development.
Embodiment:
The present invention is further illustrated below in conjunction with specific embodiment, but the present invention is not limited thereto.
Embodiment 1:35% penconazole Prochloraz missible oil
10g penconazole, 25g Prochloraz, 16g farming breast 1600
#, 5g farming breast 600
#, toluene supplies 100g, and above-mentioned raw materials is mixed with missible oil.
The phonetic phenol Prochloraz of embodiment 2:45% second suspension emulsion
The phonetic phenol of 20g second, 25g Prochloraz, 10g dimethylbenzene, 3g alkylaryl polyoxyethylene polyoxypropylene ether, 3g farming breast 1600
#, the poly-naphthaldehyde sulfonate sodium of 1g, 3g ethylene glycol, 0.2g xanthans, water supply 100g.The phonetic phenol of second, alkylaryl polyoxyethylene polyoxypropylene ether, poly-naphthaldehyde sulfonate sodium and part water are mixed by formula rate, behind the high speed shear sand milling, obtain suspending agent; Farming breast 1600 will be added after Prochloraz, the xylene soluble
#, the residue water after high speed shear, obtain aqueous emulsion; With aqueous emulsion, ethylene glycol and suspending agent high speed shear, add the even phonetic phenol Prochloraz of the 45% second suspension emulsion that gets of xanthans shear-mixed at last.
Embodiment 3:40% SYP-Z048 Prochloraz missible oil
20g SYP-Z048,20g Prochloraz, 4g farming breast 600
#, 5g farming breast 500
#, 2g1600
#, dimethylbenzene supplies 100g, and above-mentioned raw materials is mixed with 40% SYP-Z048 Prochloraz missible oil.
Embodiment 4:35% famoxadone prochloraz aqueous emulsion
10g famoxadone, 25g Prochloraz, 10g toluene, 5g Nongru-700
#, 2g farming breast 1600
#, 2g600
#Phosphate, 4g ethylene glycol, 0.4g silicone compound, water are mended to 100g, above-mentioned raw materials are mixed making 35% famoxadone prochloraz aqueous emulsion.
Embodiment 5:57.5% Guardian prochloraz-manganese chloride complex wetting powder
12.5g Guardian, 45g prochloraz-manganese chloride complex, 3g supply 100g to methoxyl group fatty acid Sodium p-aminobenzene sulfonat, 6g sodium methylene bis-naphthalene sulfonate, 4g white carbon, kaolin.
The above-mentioned raw materials mixing is obtained 57.5% Guardian prochloraz-manganese chloride complex wetting powder behind air-flow crushing.
Embodiment 6:65% zinc thiazole prochloraz-manganese chloride complex wetting powder
20g zinc thiazole, 45g prochloraz-manganese chloride complex, 6g supply 100g to methoxyl group fatty acid Sodium p-aminobenzene sulfonat, 8g sodium methylene bis-naphthalene sulfonate, 4g white carbon, kaolin.
The above-mentioned raw materials mixing is obtained 65% zinc thiazole prochloraz-manganese chloride complex wetting powder behind air-flow crushing.
Embodiment 7:25% polyoxin prochloraz aqueous emulsion
1.5g polyoxin, 23.5g Prochloraz, 5g cyclohexanone, 5g dimethylbenzene, 4g Nongru-700
#, 2g farming breast 1600
#, 2g600
#Phosphate, 4g ethylene glycol, 0.4g silicone compound, water are mended to 100g, above-mentioned raw materials are mixed making 25% polyoxin prochloraz aqueous emulsion.
Embodiment 8:47.7% dithianon Prochloraz suspension emulsion
22.7g dithianon, 25g Prochloraz, 10g dimethylbenzene, 3g alkylaryl polyoxyethylene polyoxypropylene ether, 3g farming breast 1600
#, the poly-naphthaldehyde sulfonate sodium of 1g, 3g ethylene glycol, 0.2g xanthans, water supply 100g.Dithianon, alkylaryl polyoxyethylene polyoxypropylene ether, poly-naphthaldehyde sulfonate sodium and part water are mixed by formula rate, behind the high speed shear sand milling, obtain suspending agent; Farming breast 1600 will be added after Prochloraz, the xylene soluble
#, the residue water after high speed shear, obtain aqueous emulsion; With aqueous emulsion, ethylene glycol and suspending agent high speed shear, add the even 47.7% dithianon Prochloraz suspension emulsion that gets of xanthans shear-mixed at last.
Embodiment 9:50% thifluzamide Prochloraz suspension emulsion
The 24g thifluzamide, 26g Prochloraz, 10g dimethylbenzene, 3g alkylaryl polyoxyethylene polyoxypropylene ether, 3g farming breast 1600
#, the poly-naphthaldehyde sulfonate sodium of 1g, 3g ethylene glycol, 0.2g xanthans, water supply 100g.Thifluzamide, alkylaryl polyoxyethylene polyoxypropylene ether, poly-naphthaldehyde sulfonate sodium and part water are mixed by formula rate, behind the high speed shear sand milling, obtain suspending agent; Farming breast 1600 will be added after Prochloraz, the xylene soluble
#, the residue water after high speed shear, obtain aqueous emulsion; With aqueous emulsion, ethylene glycol and suspending agent high speed shear, add the even 50% thifluzamide Prochloraz suspension emulsion that gets of xanthans shear-mixed at last.
Test example 1: the penconazole Prochloraz is prevented and treated the Toxicity Determination of pear scab
Measure the two EC of Prochloraz, penconazole by indoor antibacterial test first
50, be mixed according to the ratio of two kinds of former medicines in the table 1 more afterwards and measure its co-toxicity, obtain following result:
Table 1 pair pear scab toxicity test
| Reagent agent | Proportioning | Regression equation (y=a+bx) | EC 50(mg/L) observed value | EC 50(mg/L) theoretical value | Synergy ratio (SR) |
| Penconazole | y＝1.7557+1.6684x | 1.42 | |||
| Prochloraz | y＝1.7503+1.5525x | 3.49 | |||
| The penconazole Prochloraz | 1∶12 | y＝1.8486+1.5171x | 2.79 | 3.33 | 1.19 |
| The penconazole Prochloraz | 1∶8 | y＝1.8486+1.5171x | 2.21 | 3.26 | 1.48 |
| The penconazole Prochloraz | 1∶4 | y＝2.0247+1.5658x | 1.98 | 3.08 | 1.55 |
| The penconazole Prochloraz | 1∶2 | y＝1.8883+1.6256x | 1.57 | 2.80 | 1.78 |
| The penconazole Prochloraz | 1∶1 | y＝2.0031+1.6380x | 1.55 | 2.46 | 1.58 |
| The penconazole Prochloraz | 2∶1 | y＝1.9143+1.626x | 1.46 | 2.11 | 1.45 |
| The penconazole Prochloraz | 4∶1 | y＝1.9801+1.610x | 1.59 | 1.83 | 1.15 |
As shown in Table 1, the composite bactericidal composition of penconazole of the present invention and Prochloraz has higher synergistic effect to pear scab, penconazole and Prochloraz proportioning are that some synergistic effect in 2: 1,1: 1,1: 2,1: 4,1: 8 is obvious, and wherein when penconazole: synergistic effect is comparatively outstanding during Prochloraz=1: 1～1: 4.
Test example 2: above-described embodiment 1-3,9 prevents and treats the cladosporium leaf and fruit mould of tomato test
Be watered 60 kilograms by every mu of medication amount of formulation and carry out even spraying, dispenser is 3 times altogether, each dispenser interval 7 days, and after the 3rd dispenser, investigation result such as following table:
Table 2 is prevented and treated the cladosporium leaf and fruit mould of tomato test of pesticide effectiveness
Found out that by table 2 above-mentioned composite bactericidal composition has preferably control efficiency to cladosporium leaf and fruit mould of tomato, said composition is to tomato safety.
Test example 3 above-described embodiment 1-3,9 prevent and treat the rice sheath blight disease test
Be watered 30 kilograms by every mu of medication amount of formulation and carry out even spraying, dispenser is 3 times altogether, each dispenser interval 15 days, and after the 3rd dispenser, investigation result such as following table:
Table 3 is prevented and treated the rice sheath blight disease test of pesticide effectiveness
Found out that by table 3 above-mentioned composite bactericidal composition has preferably control efficiency to rice sheath blight disease.
Test example 4: the Toxicity Determination of Prochloraz (or its manganese salt) dithianon control citrus anthracnose
Measure the ECx of Prochloraz (or its manganese salt), dithianon by indoor antibacterial test, and be mixed according to the ratio of two kinds of former medicines in the table 4 and measure its co-toxicity, obtain following result:
Table 4 pair citrus anthracnose toxicity test
As shown in Table 4, the composite bactericidal composition of dithianon and Prochloraz (or prochloraz-manganese chloride complex) has higher synergistic effect to citrus anthracnose, and dithianon and Prochloraz proportioning are that synergistic effect in 8: 1,4: 1,1: 1,1: 5 is the most obvious.
Test example 5: above-described embodiment 4-8 prevents and treats downy mildew of garpe
Be watered 30 kilograms by every mu of medication amount of formulation and carry out even spraying, dispenser is 3 times altogether, each dispenser interval 15 days, and after the 3rd dispenser, investigation result such as following table:
Table 5 is prevented and treated the downy mildew of garpe test of pesticide effectiveness
Found out that by table 5 above-mentioned composite bactericidal composition has preferably control efficiency to downy mildew of garpe.
Test example 6: embodiment 6, the bacillary shothole disease of 8 control peach
Be watered 60 kilograms by every mu of medication amount of formulation and carry out even spraying, dispenser is 4 times altogether, each dispenser interval 10 days, and after the 4th dispenser, investigation result such as following table:
The bacillary shothole disease test of pesticide effectiveness of table 6 control peach
Found out that by table 6 above-mentioned composite bactericidal composition has preferably control efficiency to the bacillary shothole disease of peach.
In sum, the bactericidal composition that the present invention is composite, have a medicine control more, to crop safety, environmental pollution is little, quick-acting good, the lasting period is long advantage, compare with single dose, enlarged fungicidal spectrum, reduced the medication number of times, provided cost savings, so R﹠D and promotion tool of the present invention is of great significance.
Claims (4)
1. a combination sterilization composition comprises effective constituents A and B, and wherein A is Prochloraz or its slaine compound, and B is penconazole; The weight ratio of described effective constituents A and B is A:B=8:1～1:2.
2. bactericidal composition according to claim 1 is characterized in that, the total weight percentage of described active ingredient is 1～90%.
3. bactericidal composition according to claim 1, its formulation comprises wetting powder, suspending agent, water dispersible granules, aqueous emulsion or missible oil.
4. according to claim 1 and 2 or the application of 3 described bactericidal compositions, be used for preventing and treating pear scab.
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| CN101953346B (en) * | 2010-09-15 | 2011-07-20 | 浙江新农化工股份有限公司 | Zinc thiazole-containing bactericidal composition |
| CN101971816B (en) * | 2010-11-21 | 2013-03-13 | 陕西美邦农药有限公司 | Sterilizing composition containing cyproconazole and dithianon |
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| CN102067853B (en) * | 2011-01-20 | 2013-11-27 | 陕西美邦农药有限公司 | Bactericidal composition containing polyoxin and imidazole compound |
| CN102067856B (en) * | 2011-02-23 | 2014-03-05 | 陕西美邦农药有限公司 | Bactericidal composition containing polyoxin and oxazole compounds |
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