CN105309444A - Isopyrazam-containing sterilization composition - Google Patents
Isopyrazam-containing sterilization composition Download PDFInfo
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- CN105309444A CN105309444A CN201410328814.8A CN201410328814A CN105309444A CN 105309444 A CN105309444 A CN 105309444A CN 201410328814 A CN201410328814 A CN 201410328814A CN 105309444 A CN105309444 A CN 105309444A
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Abstract
The invention discloses an isopyrazam-containing sterilization composition. Effective components of the composition comprise isopyrazam and tetraconazole, and a mass ratio of isopyrazam to tetraconazole is 1:50-50:1. The composition has obvious synergistic effects and good safety, is suitable for controlling powdery mildew and rust of crops, and is especially suitable for controlling the powdery mildew and rust of vegetables, fruit trees and cereal crops.
Description
Technical field
The present invention relates to a kind of bactericidal composition, the application of especially a kind of bactericidal composition containing isopyrazam and control corps diseases thereof, belongs to technical field of pesticide.
Background technology
Powdery mildew is a kind of worldwide disease of extensive generation, is caused by the Erysiphaceae in fungi; Rust is a kind of worldwide disease, is caused by the rest fungus parasitism in fungi.
In production, main employing chemical pesticide control powdery mildew and rust, mainly rely on benzimidazole, hydroxy pyrimidine class, phenoxyquinolines class, triazole type and methoxy acrylic bactericide at present.These medicaments have created resistance in various degree because of Long-Time Service, and control efficiency reduces.In addition, triazole type medicament has inhibitory action when using dosage is large to the growth of crop, easily causes poisoning.Therefore effective pesticide control that research and development are new is needed badly.
Isopyrazam, english common name: isopyrazam, molecular formula: C
20h
23f
2n
3o is the pyrazole amide series bactericidal agent researched and developed by Syngenta Co., Ltd.By suppressing the succinate dehydrogenase on mitochondrial inner membrane in electron transport chain, make disease fungus via breathing produce power, and then the growth of germ cannot be disintegrated.This compound be used alone cost high and easily cause pathogen produce resistance risk.
Different pesticide active ingredients is combined, synergistic effect is significantly filled a prescription and greatly can be improved preventive effect, reduce dosage and use cost, reduce residue of pesticide and environmental pollution, can also delay pathogen simultaneously and produce resistance, be solve the quick and effective approach of one that current single use agricultural chemicals produces resistance and drug cost high problem.
Summary of the invention
The object of the invention is to: a kind of bactericidal composition being applicable to agriculturally production and application is provided, and contribute to reducing dosage, delay pathogen and produce resistance and reduce use cost.
For overcoming the deficiencies in the prior art, inventor is tested and field control effectiveness test by a large amount of indoor bioassay, unexpected find isopyrazam and tetraconazole composite with certain proportion after, powdery mildew and rust are had significant synergies.
Tetraconazole, english common name: tetraconazole, molecular formula: C
13h
11cl
2f
4n
3o is triazole type broad-spectrum germicide.Make germ dead by suppressing the biosynthesis of thalline ergosterol, the mechanism of action is different from isopyrazam.
Technical scheme of the present invention is: a kind of Synergistic bactericidal composition, it is characterized in that containing active ingredient isopyrazam and tetraconazole, and both mass ratioes are 1:50 ~ 50:1, and preferred mass is than being 1:20 ~ 10:1, and more preferably mass ratio is 1:10 ~ 5:1.
In bactericidal composition of the present invention, the mass accumulation percentage composition of active ingredient is 3% ~ 82%, all the other are auxiliary agent, filler and other be of value to active ingredient at storage and known substance that in using, stable and drug effect plays.
Bactericidal composition of the present invention can be processed into any formulation agriculturally allowed, and good formulation has suspension emulsion, aqueous emulsion, water dispersible granules or wetting powder.
Other composition in suspension emulsion comprises dispersant, wetting agent, emulsifier, defoamer, antifreezing agent, thickener, preservative and water; Other compositions in aqueous emulsion comprise solvent, emulsifier, antifreezing agent, defoamer and water; Other composition in water dispersible granules comprises dispersant, wetting agent, diffusant, disintegrant and filler; Other composition in wetting powder comprises dispersant, wetting agent, diffusant and filler.Below be all auxiliary element that is conventional in pesticidal preparations or permission use, be not particularly limited, concrete composition and consumption are determined by simple experiment according to recipe requirements.Such as:
Solvent can select in isopropyl alcohol, dimethylbenzene, DMF, ring ethyl ketone, toluene, dimethyl sulfoxide (DMSO), methyl alcohol, ethanol, trimethyl cyclic ethylene ketone, NOP, 1-METHYLPYRROLIDONE, propyl alcohol, butanols, ethylene glycol, diethylene glycol, ethylene glycol monomethyl ether, butyl ether, ethyl acetate, vegetable oil one or more.
Dispersant can be selected sodium lignin sulfonate, calcium lignosulfonate, pulls open powder, one or more in calcium dodecyl benzene sulfonate, polycarboxylate, alkyl benzene sulfonate calcium salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, polyoxyethylene carboxylate, fatty acid glyceride APEO.
Emulsifier can select agriculture breast 600
#(phenyl phenol polyoxyethyl ether), agriculture breast 1601
#(phenethyl phenol polyoxyethanyl polypropylene-base ether), agriculture breast 500
#(alkyl benzene calcium sulfonate), OP series phosphate (thermally coupled distillation columns), 600
#phosphate (phenyl phenol polyoxyethanyl ether phosphate), styrene polyoxyethylene rice ammonium sulfate, alkyl biphenyl ether disulfonic acid magnesium salts, triethanolamine salt, agriculture breast 400
#(benzyl xylenol polyoxyethyl ether), Nongru-700 number (alkyl phenolic resin polyoxyethyl ether), peaceful breast 36
#(phenethyl fluosite polyoxyethyl ether), agriculture breast 1600
#(phenethyl phenol polyoxyethanyl polypropylene-base ether), ethylene oxide-propylene oxide block copolymer, OP series (polyoxyethylene nonylphenol ether), agriculture breast 33
#(alkylaryl polyoxyethylene polyoxypropylene ether), agriculture breast 34
#one or more in (alkylaryl polyoxyethylene poly-oxygen propylene aether), Span series (sorbitan monostearate), TWEEN Series (sorbitan fatty acid ester APEO), AEO series (fat alcohol alcohol APEO).
Wetting agent can select that methyl naphthalene sulfonate formaldehyde condensate, lauryl sodium sulfate, Negel, alkyl benzene calcium sulfonate, tea are withered, spaonin powder, silkworm excrement, soapberry powder, bay alcohol radical sodium sulphate, washing powder, pull open in powder one or more.
Diffusant can select in naphthalene sulfonate, poly-naphthalene formaldehyde sulfonate salt, organosilicon one or more.
Antifreezing agent can select in glycerine, urea, ethylene glycol, propane diols one or more.
Defoamer can select in metallic soap of stearic acid, polyureas, 20% aqueous emulsion of dimethyl polysiloxane fluid one or more.
Preservative can select in Sodium Benzoate, sodium propionate, butyl p-hydroxybenzoate, dimethyl fumarate, potassium sorbate, sodium Diacetate one or more.
Disintegrant can select in ammonium sulfate, urea, bentonite, aluminium chloride, citric acid, succinic acid, sodium bicarbonate one or more.
Thickener can select in xanthans, CMC, methylcellulose, Magnesiumaluminumsilicate, polyvinyl alcohol one or more.
Filler can select in White Carbon black, kaolin, precipitated calcium carbonate, talcum, imvite or convex-concave rod stone, float stone, brickbat, sepiolite or bentonite and non-adsorbent calcium soil or sand one or more.
Composition described in the invention can provide with finished product preparation form, and namely in composition, each material mixes; Also can provide with unit dose form, directly mix in proportion in bucket or tank before using, be then diluted to required concentration.
Bactericidal composition of the present invention can be used for preventing and treating various fungus-caused plant disease, is specially adapted to control vegetables, fruit tree, cereal crop powdery mildew and rust, as powdery mildew of cucumber, grape powdery mildew, wheat powdery mildew, stripe rust of wheat.
Bactericidal composition of the present invention can be used by common method, and as leaching fruit, fill with root, smear, spray, spray, dusting, scatter or be fuming, its amount of application with weather condition, Crop growing stage and disease occurrence degree calmly.
Compared with prior art, the beneficial effect that the present invention produces is: (1) composition synergistic effect is obvious, and preventive effect significantly improves compared with single dose; (2), after drug effect improves, reduce field dosage and use cost, decrease residue of pesticide and environmental pollution; (3) composition is made up of the active ingredient of different mechanism of action, and action site increases, and is conducive to overcoming and delay germ and produces resistance.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, the following specific embodiment of the present invention is described, but the present invention is limited to absolutely not these examples.
Being undertaken composite by the pesticide active ingredient of different types of structure, is the effective measures solving the problem such as cost and resistance in the use procedure of agricultural chemicals single dose at present.After the pesticide active ingredient mixing of different types of structure, usually show three kinds of type of action, i.e. summation action, synergistic effect and antagonism, but be specially which kind of effect, unpredictable, only have and just can be known by lot of experiments.Compound synergic is well filled a prescription, and can improve actual control efficiency, and reduce Pesticide use dosage, contributing to the generation of delaying drug resistance, is one of important means of resistance management.
The present composition has obvious synergistic function to powdery mildew of cucumber, wheat powdery mildew etc., and is not only the simple addition of two kinds of pharmacy effects, is clear that very much this result can tested from following Toxicity Determination.
Assays Example 1: isopyrazam and the composite Toxicity Determination to cucumber powdery mildew's pathogen of tetraconazole
Subjects: cucumber powdery mildew's pathogen (Sphaerothecafuliginea (Sch.) Poll) (pick up from the wild powdery mildew of cucumber bacterial classification in field, and through separating-purifying)
Test method: test, with reference to People's Republic of China (PRC) agricultural industry criteria NY/T1156.11-2008 " farm-chemical indoor determination test rule bactericide the 11st part: method cut out by control cucurbits powdery mildew test basin ", adopts basin method of cutting out to measure.
Sow susceptible cucumber variety, potted plantly grow to 2
-4 leaf periods are for subsequent use.The former medicine of isopyrazam and the former medicine of tetraconazole use dimethyl formamide and acetone solution respectively, then dilute with 0.1% Tween-80 aqueous surfactant solution.Often process 3 basins, repeat for 4 times, 10ml liquid is evenly sprayed on blade face to all wetting, treats that liquid dries naturally for subsequent use.And establish the process only containing solvent and surfactant not containing active ingredient to make blank.24h after chemicals treatment, spray inoculation cucumber powdery mildew's pathogen spore suspension.The process for preparation of spore suspension is as follows: get and cover with Powdery Mildew cucumber leaves, is washed down by spore with the sterile water being added with a small amount of Tween-80 surfactant, and double gauze filters, and is modulated into 1x10 after microscopy
5the suspension of individual spore/milliliter.Inoculation is placed in thermostatic chamber, cultivates 10 days under temperature 20-24 DEG C of condition.When the sick leaf rate of blank reaches more than 80%, classification investigation manages incidence everywhere, calculates disease index and the control efficiency of each process.
Control efficiency is converted into probability value (y), and liquor strength (μ g/ml) converts logarithm value (x) to, calculates virulence equation and concentration EC in suppressing with method of least squares
50, toxicity index and the co-toxicity coefficient (CTC) of medicament is calculated according to the abundant method of Sun Yun.
Actual measurement toxicity index (ATI)=(standard agent EC
50/ reagent agent EC
50) × 100
In theoretical toxicity index (TTI)=A medicament toxicity index × mixture A percentage composition+B medicament toxicity index × mixture in the percentage composition of B
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] × 100
When CTC≤80, then composition shows as antagonism, and as 80 < CTC < 120, then composition shows as summation action, and when CTC >=120, then composition shows as synergistic effect.Toxicity Determination is the results detailed in Table 1.
Table 1 isopyrazam and the composite Toxicity Determination result to cucumber powdery mildew's pathogen of tetraconazole
From table 1, result can be found out, when isopyrazam and tetraconazole are between proportioning 1:50 ~ 50:1, shows as synergistic effect to cucumber powdery mildew's pathogen, and time especially between 1:10 ~ 5:1, co-toxicity coefficient is all higher than 186, and synergistic effect is the most obvious.
Assays Example 2: isopyrazam and the composite Toxicity Determination to wheat powdery mildew of tetraconazole
Subjects: wheat powdery mildew (Erysiphegraminis) (pick up from field Wild Wheats powdery mildew bacterial classification, and through separation and purification)
Test method: test, with reference to People's Republic of China (PRC) agricultural industry criteria NY/T1156.4-2006 " farm-chemical indoor determination test rule bactericide the 4th part: method cut out by control wheat powdery mildew test basin ", adopts basin method of cutting out to measure.
Select susceptible wheat breed potted plant, treat that seedling grows to 2 leaves
-3 leaf phases are for subsequent use.The former medicine of isopyrazam and the former medicine of tetraconazole use dimethyl formamide and acetone solution respectively, then dilute with 0.1% Tween-80 aqueous surfactant solution.Often process 3 basins, the strain of every basin 10, repeat for 4 times, 10ml liquid is evenly sprayed on wheat seedling and soaks to whole, treat that liquid dries naturally for subsequent use, and establish the process only containing solvent and surfactant not containing active ingredient to make blank.24h after chemicals treatment, evenly shakes off to be inoculated in 2 of process by the Powdery Mildew Fresh spores produced in 24h on morbidity wheat leaf blade
-on 3 leaf phase potted plant wheat seedlings, cultivate under inoculation is placed on suitable condition.Wait to contrast wheat fully to fall ill all blades of " Invest, Then Investigate " every basin wheat seedling, and calculate disease index and the control efficiency of each process.
Co-toxicity coefficient computational methods are with above-described embodiment 1, and Toxicity Determination is the results detailed in Table 2.
Table 2 isopyrazam and the composite Toxicity Determination result to wheat powdery mildew of tetraconazole
From table 2, result can be found out, when isopyrazam and tetraconazole are between proportioning 1:50 ~ 50:1, shows as synergistic effect to wheat powdery mildew, and time especially between 1:10 ~ 5:1, listed proportioning co-toxicity coefficient is all higher than 196, and synergistic effect is more obvious.
Bactericidal composition of the present invention can be prepared into the suspension emulsion, water aqueous emulsion, water dispersible granules or the wetting powder that are applicable to agriculturally using by known method.The following stated is only the good embodiment of the present invention, only in order to explain the present invention, therefore can not be interpreted as the restriction to the scope of the claims of the present invention.
Suspension emulsion embodiment
The ratio of each components such as pesticide activity component, dispersant, wetting agent, emulsifier, defoamer, antifreezing agent, thickener, preservative and water in formula is mixed, after sand milling or high speed shear, obtain semi-finished product, add water after analysis and mix filtration and namely obtain suspension emulsion.
Example of formulations 1,25.5% isopyrazam tetraconazole suspension emulsion
Isopyrazam 0.5%, tetraconazole 25%, alkylphenol polyoxyethylene (dispersant) 3%, calcium lignosulfonate (dispersant) 2%, pull open powder (wetting agent) 1%, phenyl phenol polyoxyethyl ether (emulsifier) 4%, xanthans (thickener) 0.2%, ethylene glycol (antifreezing agent) 4%, 20% aqueous emulsion of dimethyl polysiloxane fluid (defoamer) 0.4%, Sodium Benzoate (preservative) 0.2%, water is supplemented to 100%.
Example of formulations 2,30% isopyrazam tetraconazole suspension emulsion
Isopyrazam 25%, tetraconazole 5%, polyoxyethylene carboxylate (dispersant) 3%, calcium lignosulfonate (dispersant) 2%, bay alcohol radical sodium sulphate (wetting agent) 1.5%, phenyl phenol polyoxyethyl ether (emulsifier) 5%, xanthans (thickener) 0.2%, ethylene glycol (antifreezing agent) 4%, 20% aqueous emulsion of dimethyl polysiloxane fluid (defoamer) 0.4%, Sodium Benzoate (preservative) 0.2%, water are supplemented to 100%.
Example of formulations 3,22% isopyrazam tetraconazole suspension emulsion
Isopyrazam 20%, tetraconazole 2%, alkylphenol polyoxyethylene (dispersant) 2%, calcium lignosulfonate (dispersant) 2%, pull open powder (wetting agent) 2%, phenyl phenol polyoxyethyl ether (emulsifier) 4%, xanthans (thickener) 0.2%, ethylene glycol (antifreezing agent) 4%, 20% aqueous emulsion of dimethyl polysiloxane fluid (defoamer) 0.4%, Sodium Benzoate (preservative) 0.2%, water is supplemented to 100%.
Aqueous emulsion embodiment
In solvent, successively add pesticide activity component, emulsifier and defoamer in proportion, abundant stirring and dissolving makes high concentration mother liquor, then adds deionized water and stir, and then adds antifreezing agent, the qualified rear obtained aqueous emulsion product of analytical control.
Example of formulations 4,10% isopyrazam tetraconazole aqueous emulsion
Isopyrazam 5%, tetraconazole 5%, calcium dodecyl benzene sulfonate (emulsifier) 5%, phenethyl phenol polyoxyethanyl polypropylene-base ether (emulsifier) 3%, ethylene glycol (antifreezing agent) 4%, 20% aqueous emulsion of dimethyl polysiloxane fluid (defoamer) 0.4%, 1-METHYLPYRROLIDONE (solvent) 15%, water are supplemented to 100%.
Example of formulations 5,5% isopyrazam tetraconazole aqueous emulsion
Isopyrazam 2%, tetraconazole 3%, calcium dodecyl benzene sulfonate (emulsifier) 5%, phenethyl phenol polyoxyethanyl polypropylene-base ether (emulsifier) 3%, ethylene glycol (antifreezing agent) 4%, 20% aqueous emulsion of dimethyl polysiloxane fluid (defoamer) 0.4%, 1-METHYLPYRROLIDONE (solvent) 20%, water are supplemented to 100%.
Example of formulations 6,25.5% isopyrazam tetraconazole aqueous emulsion
Isopyrazam 25%, tetraconazole 0.5%, calcium dodecyl benzene sulfonate (emulsifier) 2%, phenethyl phenol polyoxyethanyl polypropylene-base ether (emulsifier) 4%, alkyl phenolic resin polyoxyethyl ether (emulsifier) 4%, ethylene glycol (antifreezing agent) 4%, 20% aqueous emulsion of dimethyl polysiloxane fluid (defoamer) 0.4%, 1-METHYLPYRROLIDONE (solvent) 20%, water are supplemented to 100%.
Water dispersible granules embodiment
By pesticide activity component, dispersant, wetting agent, diffusant, disintegrant and filler mixing mixing, through coarse crushing and air-flow crushing, then carry out mediating and extruder grain, through sieving obtained water dispersible granules product after drying.
Example of formulations 7,82% isopyrazam tetraconazole water dispersible granules
Isopyrazam 80%, tetraconazole 2%, lauryl sodium sulfate (wetting agent) 4%, calcium lignosulfonate (dispersant) 5%, naphthalene sulfonate (diffusant) 4%, White Carbon black (filler) complement to 100%.Example of formulations 8,20.5% isopyrazam tetraconazole water dispersible granules
Isopyrazam 0.5%, tetraconazole 20%, bay alcohol radical sodium sulphate (wetting agent) 2%, calcium lignosulfonate (dispersant) 6%, naphthalene sulfonate (diffusant) 6%, urea (disintegrant) 8%, kaolin (filler) complement to 100%.
Example of formulations 9,42% isopyrazam tetraconazole water dispersible granules
Isopyrazam 40%, tetraconazole 2%, soapberry powder (wetting agent) 3%, calcium lignosulfonate (dispersant) 12%, poly-naphthalene formaldehyde sulfonate salt (diffusant) 6%, bentonite (disintegrant) 10%, kaolin (filler) complement to 100%.
Example of formulations 10,62% isopyrazam tetraconazole water dispersible granules
Isopyrazam 2%, tetraconazole 60%, lauryl sodium sulfate (wetting agent) 4%, calcium lignosulfonate (dispersant) 12%, naphthalene sulfonate (diffusant) 6%, ammonium sulfate (disintegrant) 10%, kaolin (filler) complement to 100%.
Wetting powder embodiment
Pesticide activity component, wetting agent, dispersant, diffusant and filler etc. are mixed in proportion successively, after air-flow crushing, mixing obtains wetting powder product again.
Example of formulations 11,30% isopyrazam tetraconazole wetting powder
Isopyrazam 5%, tetraconazole 25%, lauryl sodium sulfate (wetting agent) 2.5%, calcium lignosulfonate (dispersant) 6%, naphthalene sulfonate (diffusant) 3%, kaolin (filler) complement to 100%.
Example of formulations 12,22% isopyrazam tetraconazole wetting powder
Isopyrazam 2%, tetraconazole 20%, bay alcohol radical sodium sulphate (wetting agent) 3%, calcium lignosulfonate (dispersant) 6%, naphthalene sulfonate (diffusant) 3%, white carbon (filler) 8%, bentonite (filler) complement to 100%.
Example of formulations 13,15.5% isopyrazam tetraconazole wetting powder
Isopyrazam 15%, tetraconazole 0.5%, lauryl sodium sulfate (wetting agent) 2%, calcium lignosulfonate (dispersant) 6%, naphthalene sulfonate (diffusant) 4%, white carbon (filler) 6%, convex-concave rod stone (filler) complement to 100%.
Example of formulations 14,42% isopyrazam tetraconazole wetting powder
Isopyrazam 2%, tetraconazole 40%, lauryl sodium sulfate (wetting agent) 3%, calcium lignosulfonate (dispersant) 8%, naphthalene sulfonate (diffusant) 4%, white carbon (filler) 8%, kaolin (filler) complement to 100%.
Field information embodiment 1: isopyrazam and the composite field control effectiveness test to powdery mildew of cucumber of tetraconazole
Test and carry out in Wuhua County, Growth in Meizhou City, Guangdong in June, 2013, experimental field powdery mildew of cucumber over the years occurs serious.Test medicine and dosage refer to table 3, often process 4 times and repeat, plot area 20m
2, Gong44Ge community, random district group arranges.Adopt conventional spray-on process, liquid consumption is 750L/hm
2, evenly spray complete stool, do not drip for degree to squirt blade.Carry out first time dispenser at powdery mildew of cucumber their early stage, after 7 days, carry out second time dispenser, separately establish clear water to be treated to blank.Before dispenser, investigate state of an illness radix, second time dispenser before and second time dispenser after 12 days investigation prevention effects.
Table 3 isopyrazam and the composite field test results to powdery mildew of cucumber of tetraconazole
Field test results shows, the embodiment of the present invention 25.5% isopyrazam tetraconazole suspension emulsion, 30% isopyrazam tetraconazole suspension emulsion, 10% isopyrazam tetraconazole aqueous emulsion, 5% isopyrazam tetraconazole aqueous emulsion, 42% isopyrazam tetraconazole water dispersible granules, 30% isopyrazam tetraconazole wetting powder, 22% isopyrazam tetraconazole wetting powder and 42% isopyrazam tetraconazole wetting powder are respectively by effective ingredient consumption 50g/hm
2, 135g/hm
2, 90g/hm
2, 80g/hm
2, 160g/hm
2, 60g/hm
2, 58g/hm
2and 54g/hm
2spraying, has good control efficiency to powdery mildew of cucumber.Control efficiency before second time dispenser is respectively: 77.31%, 86.93%, 87.83%, 88.86%, 80.85%, 89.87%, 84.70% and 82.75%, after second time dispenser, the control efficiency of 12 days is respectively 86.93%, 93.86%, 95.83%, 96.84%, 87.34%, 97.14%, 90.99% and 88.29%, is obviously better than contrast medicament 30% isopyrazam suspending agent by effective ingredient consumption 200g/hm
2preventive effect 70.22% and 78.94% and 4% tetraconazole aqueous emulsion by effective ingredient consumption 60g/hm
2preventive effect 68.96% and 77.65%, under corresponding test dose, reagent agent effectively can control the occurrence injury of powdery mildew of cucumber, has doublely control effect to homochronous cucumber downy mildew.Duration of test, reagent agent, to trial crops safety, occurs, to beneficial organism safety such as honeybee and natural enemy oophagous trichogrammaes without poisoning.
Field information embodiment 2: isopyrazam and the composite field control effectiveness test to grape powdery mildew of tetraconazole
Test and carry out in Yangling District Li Tai township of Xianyang, Shanxi province city in June, 2013, grape powdery mildew over the years occurs serious.Test medicine and dosage refer to table 4, often process 4 times and repeat, plot area 20m
2, Gong44Ge community, random district group arranges.Adopt conventional spray-on process, liquid consumption is 1800L/hm
2, evenly spray complete stool, do not drip for degree to squirt blade.Carry out first time dispenser at grape powdery mildew their early stage, after 20 days, carry out second time dispenser, separately establish clear water to be treated to blank.Before dispenser, investigate state of an illness radix, second time dispenser before and second time dispenser after 14 days investigation prevention effects.
Table 4 isopyrazam and the composite field test results to grape powdery mildew of tetraconazole
Field test results shows, the embodiment of the present invention 25.5% isopyrazam tetraconazole suspension emulsion, 30% isopyrazam tetraconazole suspension emulsion, 10% isopyrazam tetraconazole aqueous emulsion, 5% isopyrazam tetraconazole aqueous emulsion, 42% isopyrazam tetraconazole water dispersible granules, 30% isopyrazam tetraconazole wetting powder, 22% isopyrazam tetraconazole wetting powder and 42% isopyrazam tetraconazole wetting powder are respectively by active ingredient concentration 36mg/kg, 100mg/kg, 50mg/kg, 50mg/kg, 120mg/kg, 42mg/kg, 40mg/kg and 40mg/kg sprays, good control efficiency is had to grape powdery mildew.Control efficiency before second time dispenser is respectively: 74.33%, 85.85%, 88.66%, 89.10%, 77.29%, 90.65%, 81.76% and 78.79%, after second time dispenser, the control efficiency of 14 days is respectively 85.82%, 93.73%, 95.18%, 96.91%, 86.30%, 97.77%, 90.40% and 87.69%, obviously be better than contrasting preventive effect 71.92% and the 78.73% and 4% tetraconazole aqueous emulsion of medicament 30% isopyrazam suspending agent by active ingredient concentration 150mg/kg by the preventive effect 68.39% and 75.09% of active ingredient concentration 40mg/kg, reagent agent effectively can control the occurrence injury of grape powdery mildew under corresponding test dose, have homochronous downy mildew of garpe and doublely control effect.Duration of test, reagent agent, to trial crops safety, occurs, to beneficial organism safety such as honeybee and natural enemy oophagous trichogrammaes without poisoning.
Field information embodiment 3: isopyrazam and the composite field control effectiveness test to stripe rust of wheat of tetraconazole
Test in 4 ~ May in 2013 Gao Xiang on Taishan District of Taian City, Shandong Province carry out, experimental field stripe rust of wheat over the years occurs serious.Test medicine and dosage refer to table 5, often process 4 times and repeat, plot area 20m
2, Gong44Ge community, random district group arranges.Adopt conventional spray-on process, liquid consumption is 750L/hm
2, evenly spray complete stool, do not drip for degree to squirt blade.Carry out first time dispenser at stripe rust of wheat their early stage, after 7 days, carry out second time dispenser, separately establish clear water to be treated to blank.Before dispenser, investigate state of an illness radix, second time dispenser before and second time dispenser after 14 days investigation prevention effects.
Table 5 isopyrazam and the composite field test results to stripe rust of wheat of tetraconazole
Field test results shows, the embodiment of the present invention 25.5% isopyrazam tetraconazole suspension emulsion, 30% isopyrazam tetraconazole suspension emulsion, 10% isopyrazam tetraconazole aqueous emulsion, 5% isopyrazam tetraconazole aqueous emulsion, 42% isopyrazam tetraconazole water dispersible granules, 30% isopyrazam tetraconazole wetting powder, 22% isopyrazam tetraconazole wetting powder and 42% isopyrazam tetraconazole wetting powder are respectively by effective ingredient consumption 38g/hm
2, 90g/hm
2, 60g/hm
2, 52.5g/hm
2, 100g/hm
2, 45g/hm
2, 40g/hm
2and 36g/hm
2spraying, has good control efficiency to stripe rust of wheat.Control efficiency before second time dispenser is respectively: 75.70%, 83.78%, 84.01%, 86.95%, 77.24%, 88.43%, 80.93% and 77.84%, after second time dispenser, the control efficiency of 14 days is respectively 86.61%, 94.13%, 94.83%, 95.08%, 87.13%, 96.46%, 90.23% and 88.23%, is obviously better than contrast medicament 30% isopyrazam suspending agent by effective ingredient consumption 120g/hm
2preventive effect 69.60% and 78.62% and 4% tetraconazole aqueous emulsion by effective ingredient consumption 40g/hm
2preventive effect 67.12% and 77.19%, under corresponding test dose, reagent agent effectively can control the occurrence injury of stripe rust of wheat, also has excellent control efficiency to homochronous wheat powdery mildew and head blight.Duration of test, reagent agent, to trial crops safety, occurs, to beneficial organism safety such as honeybee and natural enemy oophagous trichogrammaes without poisoning.
Can find out from the field control effectiveness test result of foregoing invention embodiment: after isopyrazam and tetraconazole mixture, effective ingredient consumption reduces, and synergistic effect is obvious, and the lasting period extends, and to trial crops safety, creates beneficial effect.
Claims (6)
1., containing a bactericidal composition for isopyrazam, it is characterized in that: the active ingredient of described bactericidal composition is isopyrazam and tetraconazole, both mass ratioes are 1:50 ~ 50:1.
2. bactericidal composition according to claim 1, is characterized in that: the mass ratio of isopyrazam and tetraconazole is 1:20 ~ 10:1.
3. bactericidal composition according to claim 2, is characterized in that: the mass ratio of isopyrazam and tetraconazole is 1:10 ~ 5:1.
4. the bactericidal composition according to any one of claims 1 to 3, is characterized in that: the gross mass percentage composition of active ingredient is 3% ~ 82%.
5. bactericidal composition according to claim 4, is characterized in that: the formulation of described bactericidal composition is suspension emulsion, aqueous emulsion, water dispersible granules or wetting powder.
6. the application of bactericidal composition described in claim 1 in control crop powdery mildew and rust.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410328814.8A CN105309444A (en) | 2014-07-11 | 2014-07-11 | Isopyrazam-containing sterilization composition |
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| CN201410328814.8A CN105309444A (en) | 2014-07-11 | 2014-07-11 | Isopyrazam-containing sterilization composition |
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| CN105309444A true CN105309444A (en) | 2016-02-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101035432A (en) * | 2004-10-08 | 2007-09-12 | 辛根塔参与股份公司 | Fungicidal compositions |
| CN103222465A (en) * | 2013-05-23 | 2013-07-31 | 陕西上格之路生物科学有限公司 | Sterilizing composition containing isopyrazam and triazole bactericide |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101035432A (en) * | 2004-10-08 | 2007-09-12 | 辛根塔参与股份公司 | Fungicidal compositions |
| CN103222465A (en) * | 2013-05-23 | 2013-07-31 | 陕西上格之路生物科学有限公司 | Sterilizing composition containing isopyrazam and triazole bactericide |
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