CN105961405A - Bactericidal composition containing benzothiostrobin and meptyldinocap - Google Patents
Bactericidal composition containing benzothiostrobin and meptyldinocap Download PDFInfo
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- CN105961405A CN105961405A CN201610525501.0A CN201610525501A CN105961405A CN 105961405 A CN105961405 A CN 105961405A CN 201610525501 A CN201610525501 A CN 201610525501A CN 105961405 A CN105961405 A CN 105961405A
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- benzothiostrobin
- bacterium ester
- benzene bacterium
- nitre benzene
- powdery mildew
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/06—Unsaturated carboxylic acids or thio analogues thereof; Derivatives thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/74—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
- A01N43/78—1,3-Thiazoles; Hydrogenated 1,3-thiazoles
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- Pest Control & Pesticides (AREA)
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Abstract
The invention discloses a bactericidal composition containing phenamacril and meptyldinocap. The bactericidal composition is characterized by comprising effective ingredients of the benzothiostrobin and the meptyldinocap and commonly used auxiliary ingredients, wherein the weight ratio of the benzothiostrobin to the meptyldinocap is 10:1 to 1:10; the total weight of the benzothiostrobin and the meptyldinocap is 1 percent to 85 percent of the weight of the composition. Proved by a large number of laboratory and outdoor experiments, the bactericidal composition disclosed by the invention has the advantages that the composition has a significant synergistic effect on various diseases harming crop growth, especially powdery mildew, meanwhile the pesticide dosage is reduced, the residual quantity of a pesticide on crops is reduced, the pollution to environment is relieved, the production of drug resistance of pathogenic bacteria is delayed, and the service life of the pesticide is prolonged.
Description
Technical field
The present invention relates to pesticide sterilizing composite and application thereof, specifically one contain
Benzothiostrobin and the bactericidal composition of nitre benzene bacterium ester.
Background technology
Benzothiostrobin (benzothiostrobin): belong to methoxy acrylic bactericide,
The mechanism of action is mitochondrial respiratory chain cytochrome b c1 complex inhibitor, to beneficial organism and
Crop has a good safety, low toxicity and environmentally friendly.Benzothiostrobin may be used for multiple disease
The preventing and treating of evil, particularly shows the preventive effect of excellence to powdery mildew of cucumber and cucumber downy mildew.
Nitre benzene bacterium ester (meptyldinocap): belong to dinitrophenol series bactericidal agent, act on
In each stage of pathogen life cycle, by suppression spore germination, suppress fungus Repiration,
Cause cellular metabolism disorderly, so that pathogen cell death；To the white lead in multiple kinds of crops
Disease has specially good effect.
The most long-time use continuously of pesticide easily produces resistance risk and consumption increases risk,
And then increase cost and carrying capacity of environment, and filtered out by agriculture chemical compounding and there is notable Synergistic
The compositions of effect, can not only reduce Pesticide use amount, reduce use cost, minimizing resistance wind
Danger, moreover it is possible to reduce potential environmental risk.
The mixture of benzothiostrobin with nitre benzene bacterium ester is combined and conducts in-depth research, greatly by the present invention
On the basis of the test of amount, find benzothiostrobin and nitre benzene bacterium ester group in certain amount ranges
Close, prevent and treat late blight of potato performance synergistic function, agriculture can be given by Technology
Pharmaceutically dosage form.After further study, the present invention is completed.
Summary of the invention
It is desirable to provide a kind of containing benzothiostrobin with the bactericidal composition of nitre benzene bacterium ester, right
Multiple diseases on crops, especially has the prevention effect of excellence to powdery mildew.
Technical scheme: a kind of containing benzothiostrobin with the Bactericidal composite of nitre benzene bacterium ester
Thing, effective ingredient is benzothiostrobin and nitre benzene bacterium ester, benzothiostrobin and the weight ratio of nitre benzene bacterium ester
For 10:1～1:10, preferably than for 2:1～1:4, benzothiostrobin and nitre benzene bacterium ester weight summation
Percentage by weight in the composition is 1%～85, and remaining is agriculturally to allow to use and permissible
The insecticides adjuvant accepted.
Bactericidal composition of the present invention also includes solvent, cosolvent, emulsifying agent, dispersant, moistening
Agent, thickening agent, antifreezing agent, cyst material, pH adjusting agent, defoamer, disintegrating agent, steady
Determine agent, penetrating agent, diffusant, preservative, synergist, poisoning palliative, binding agent, close
The degree pesticide such as regulator and filler allows to use and acceptable auxiliary element, is all pesticide
In preparation conventional or allow the composition used, be not particularly limited, concrete composition and consumption according to
Recipe requirements is determined by test.
Bactericidal composition of the present invention can be prepared as the multiple application being suitable in agricultural production using
Dosage form, reasonable dosage form has microcapsule suspending agent, suspending agent, aqueous emulsion, microemulsion, moisture
Shot agent, wettable powder and ultra low volume liquids.
The production technology of the various application forms of described bactericidal composition all belongs to existing known technology,
Do not repeat them here.
Bactericidal composition described in the invention, can provide with finished product preparation form, i.e. compositions
In each material the most blended, the composition of compositions can also provide by unit dose form, before using directly
Bucket or tank mix, is then diluted to desired concn.
The bactericidal composition of the present invention, is used for preventing and treating crop powdery mildew.
Compared with prior art, it is an advantage of the current invention that:
1, benzothiostrobin and nitre benzene bacterium ester compound and have significant synergistic function, than list
Agent is used alone and significantly improves the prevention effect of disease on crops.
2, benzothiostrobin and nitre two kinds of active component of benzene bacterium ester compound, and decrease Pesticide use amount,
Reduce use cost, alleviate the pollution to environment.
3, benzothiostrobin and nitre two kinds of active component of benzene bacterium ester compound, and the mechanism of action is different,
Action site increases, and has delayed the drug-fast generation of pathogen, has added the service life of pesticide.
Detailed description of the invention
In order to be more fully understood that the essence of the present invention, below in conjunction with embodiment to present disclosure
Being described further, but can not be considered as limitation of the present invention, the following stated is only used for explaining this
Invention, for the amendment made without departing from present invention spirit and principle, replaces or improves, all belong to
In the scope of protection of present invention.
Embodiment one: 15% benzothiostrobin nitre benzene bacterium ester micro capsule suspending agent
Following material is all weight percentage: benzothiostrobin 5%, nitre benzene bacterium ester 10%, melamine
Amine-for-aldehyde resin (cyst material) 8%, fatty acid methyl ester (solvent) 10%, polyol fat
Acid esters (emulsifying agent) 5%, maleic acid-acrylic acid copolymer sodium salt (dispersant) 3%, hydrogen-oxygen
Changing sodium (pH adjusting agent) 2%, deionized water complements to 100%.By above-mentioned active component, capsule
Wall material, solvent mix, and make to be dissolved into homogeneous oil phase, in a shear condition, are added by oil phase
To containing emulsifying agent, dispersant, pH adjusting agent aqueous phase solution in, surplus deionized water
Supplying, bi-material reacts at oil-water interfaces, forms cyst wall, can be prepared by 15% benzene thiophene
Bacterium ester nitre benzene bacterium ester micro capsule suspending agent.
This embodiment is used for preventing and treating powdery mildew of cucumber: 15% benzothiostrobin nitre benzene bacterium ester micro capsule hangs
Floating agent carries out dispenser for the first time by 200g a.i./ha consumption at powdery mildew of cucumber their early stage,
Carry out second time dispenser after 7d, separately set clear water and be processed as blank, after second time dispenser
14d is 96.78% to the preventive effect of powdery mildew of cucumber；200g pressed by 20% benzothiostrobin suspending agent
A.i./ha consumption carries out dispenser for the first time at powdery mildew of cucumber their early stage, carries out second after 7d
Secondary dispenser, separately sets clear water and is processed as blank, and after second time dispenser, 14d is to Fructus Cucumidis sativi white lead
Sick preventive effect is 78.26%；36% nitre benzene bacterium emulsifiable concentrate presses 200g a.i./ha consumption Fructus Cucumidis sativi
Powdery mildew their early stage carries out dispenser for the first time, carries out second time dispenser, separately set clear water after 7d
Being processed as blank, after second time dispenser, the preventive effect of powdery mildew of cucumber is by 14d
82.45%.Visible, obvious synergy after benzothiostrobin and nitre benzene bacterium ester binary built,
Lasting period is long, is used alone the preventive effect of powdery mildew of cucumber significantly better than each single dose, meanwhile,
Process of the test not finding, this binary built medicament produces poisoning to Fructus Cucumidis sativi.
Embodiment two: 24% benzothiostrobin nitre benzene bacterium ester suspending agent
Following material is all weight percentage: benzothiostrobin 16%, nitre benzene bacterium ester 8%, methyl naphthalene
Sodium sulfonate formaldehyde condensation products (wetting agent) 2%, phenethyl phenol polyethenoxy base ether phosphate (divide
Powder) 5%, ethylene glycol (antifreezing agent) 3%, xanthan gum (thickening agent) 1.5%, polyhydroxy benzenes
Propyl formate (preservative) 0.2%, C10-20 saturated fat acid compounds (defoamer)
0.2%, triethanolamine (pH adjusting agent) 0.2%, vegetable oil (synergist) 2%, deionization
Water supplies 100%.By above-mentioned active component, wetting agent, dispersant, antifreezing agent, thickening agent,
Preservative, defoamer, pH adjusting agent, synergist and deionized water through high speed shear disperse,
Sand milling in sand mill, the high dispersive formed in water-medium, stable suspension system,
Prepare 24% benzothiostrobin nitre benzene bacterium ester suspending agent.
This embodiment is used for preventing and treating uncinula necator: 24% benzothiostrobin nitre benzene bacterium ester suspending agent
Dispenser for the first time is carried out at uncinula necator their early stage, after 7d by 200g a.i./ha consumption
Carry out second time dispenser, separately set clear water and be processed as blank, after second time dispenser 14d pair
The preventive effect of uncinula necator is 95.69%；200g a.i./ha pressed by 20% benzothiostrobin suspending agent
Consumption carries out dispenser for the first time at uncinula necator their early stage, carries out second time dispenser after 7d,
Separately set clear water and be processed as blank, the 14d preventive effect to uncinula necator after second time dispenser
It is 74.48%；36% nitre benzene bacterium emulsifiable concentrate is sent out at uncinula necator by 200g a.i./ha consumption
The sick initial stage carries out dispenser for the first time, carries out second time dispenser, separately set clear water and be processed as sky after 7d
White comparison, after second time dispenser, 14d is 79.91% to the preventive effect of uncinula necator.It is visible,
Obvious synergy after benzothiostrobin and nitre benzene bacterium ester binary built, the lasting period is long, to Portugal
The preventive effect of grape powdery mildew is used alone significantly better than each single dose, does not sends out in process of the test meanwhile
Now this binary built medicament produces poisoning to Fructus Vitis viniferae.
Embodiment three: 35% benzothiostrobin nitre benzene bacterium ester aqueous emulsion
Following material is all weight percentage: benzothiostrobin 20%, nitre benzene bacterium ester 15%, Petiolus Trachycarpi
Methyl oleate (solvent) 15%, styrylphenol polyoxyethylene ether (emulsifying agent) 10%, sweet
Oil and fat acid ester polyoxyethylene ether (dispersant) 5%, acetic anhydride (stabilizer) 3%, glycerol are (anti-
Freeze agent) 2%, organosiloxane (defoamer) 0.2%, sodium benzoate (preservative) 0.2%,
Carbamide (density adjuster) 1.5%, xanthan gum (thickening agent) 0.5%, deionized water supplies 100%.
Above-mentioned active component, solvent, emulsifying agent, dispersant and stabilizer are mixed to form oil phase, anti-
Freeze agent, defoamer, preservative, density adjuster and thickening agent and dissolve formation in deionized water
Aqueous phase, slowly adds oil phase in aqueous phase under cutter effect, and continues to shear about 30 points
Clock, prepares 35% benzothiostrobin nitre benzene bacterium ester aqueous emulsion.
This embodiment is used for preventing and treating powdery mildew of strawberry: 35% benzothiostrobin nitre benzene bacterium ester aqueous emulsion
Dispenser for the first time is carried out at powdery mildew of strawberry their early stage, after 7d by 200g a.i./ha consumption
Carry out second time dispenser, separately set clear water and be processed as blank, after second time dispenser 14d pair
The preventive effect of powdery mildew of strawberry is 92.87%；200g a.i./ha pressed by 20% benzothiostrobin suspending agent
Consumption carries out dispenser for the first time at powdery mildew of strawberry their early stage, carries out second time dispenser after 7d,
Separately set clear water and be processed as blank, the 14d preventive effect to powdery mildew of strawberry after second time dispenser
It is 71.47%；36% nitre benzene bacterium emulsifiable concentrate is sent out at powdery mildew of strawberry by 200g a.i./ha consumption
The sick initial stage carries out dispenser for the first time, carries out second time dispenser, separately set clear water and be processed as sky after 7d
White comparison, after second time dispenser, 14d is 75.28% to the preventive effect of powdery mildew of strawberry.It is visible,
Obvious synergy after benzothiostrobin and nitre benzene bacterium ester binary built, the lasting period is long, to grass
The preventive effect of certain kind of berries powdery mildew is used alone significantly better than each single dose, does not sends out in process of the test meanwhile
Now this binary built medicament produces poisoning to Fructus Fragariae Ananssae.
Embodiment four: 40% benzothiostrobin nitre benzene bacterium ester microemulsion
Following material is all weight percentage: benzothiostrobin 25%, nitre benzene bacterium ester 15%, Petiolus Trachycarpi
Methyl oleate (solvent) 15%, ethanol (cosolvent) 5%, triphen ethyl phenol polyoxyethylene groups
Ether phosphate (emulsifying agent) 10%, sodium citrate (stabilizer) 3%, organosilicon (penetrating agent)
1%, propyl isome (synergist) 2%, triethanolamine (pH adjusting agent) 0.2%, deionized water
Supply 100%.Above-mentioned active component solvent and cosolvent are completely dissolved, then add
Emulsifying agent, stabilizer, penetrating agent, synergist and pH adjusting agent mix homogeneously, be eventually adding
Deionized water, after being sufficiently stirred for, can be prepared by 40% benzothiostrobin nitre benzene bacterium ester microemulsion.
This embodiment is used for preventing and treating wheat powdery mildew: 40% benzothiostrobin nitre benzene bacterium ester microemulsion
Dispenser for the first time is carried out at wheat powdery mildew their early stage, after 7d by 200g a.i./ha consumption
Carry out second time dispenser, separately set clear water and be processed as blank, after second time dispenser 14d pair
The preventive effect of wheat powdery mildew is 97.39%；200g a.i./ha pressed by 20% benzothiostrobin suspending agent
Consumption carries out dispenser for the first time at wheat powdery mildew their early stage, carries out second time dispenser after 7d,
Separately set clear water and be processed as blank, the 14d preventive effect to wheat powdery mildew after second time dispenser
It is 76.96%；36% nitre benzene bacterium emulsifiable concentrate is sent out at wheat powdery mildew by 200g a.i./ha consumption
The sick initial stage carries out dispenser for the first time, carries out second time dispenser, separately set clear water and be processed as sky after 7d
White comparison, after second time dispenser, 14d is 80.45% to the preventive effect of wheat powdery mildew.It is visible,
Obvious synergy after benzothiostrobin and nitre benzene bacterium ester binary built, the lasting period is long, to little
The preventive effect of wheat powdery mildew is used alone significantly better than each single dose, does not sends out in process of the test meanwhile
Now this binary built medicament produces poisoning to Semen Tritici aestivi.
Embodiment five: 10% benzothiostrobin nitre benzene bacterium ester ultra low volume liquids
Following material is all weight percentage: benzothiostrobin 2%, nitre benzene bacterium ester 8%, trimethylbenzene
(solvent) 20%, N,N-dimethylacetamide (solvent) 10%, terminal hydroxy group polyoxyethylene are poly-
In oxypropylene ether (emulsifying agent) 5%, calcium dodecyl benzene sulfonate (wetting agent) 5%, brassin
Ester (poisoning palliative) 0.02%, isophorone (penetrating agent) 2%, triacetyl glycerine is mended
Foot is to 100%.After above-mentioned active component stirring solvent being dissolved, add emulsifying agent, wet
Profit agent, poisoning palliative and penetrating agent, be thoroughly mixed uniformly, be eventually adding three acetic acid sweet
Grease, after being sufficiently stirred for, can be prepared by 10% benzothiostrobin nitre benzene bacterium ester ultra low volume liquids.
This embodiment is used for preventing and treating Semen vignae sinensis powdery mildew: 10% benzothiostrobin nitre benzene bacterium ester super-low capacity
Amount liquor carries out dispenser for the first time by 200g a.i./ha consumption at Semen vignae sinensis powdery mildew their early stage,
Carry out second time dispenser after 7d, separately set clear water and be processed as blank, after second time dispenser
14d is 95.04% to the preventive effect of Semen vignae sinensis powdery mildew；200g pressed by 20% benzothiostrobin suspending agent
A.i./ha consumption carries out dispenser for the first time at Semen vignae sinensis powdery mildew their early stage, carries out second after 7d
Secondary dispenser, separately sets clear water and is processed as blank, and after second time dispenser, 14d is to Semen vignae sinensis white lead
Sick preventive effect is 72.98%；36% nitre benzene bacterium emulsifiable concentrate presses 200g a.i./ha consumption at Semen vignae sinensis
Powdery mildew their early stage carries out dispenser for the first time, carries out second time dispenser, separately set clear water after 7d
Being processed as blank, after second time dispenser, the preventive effect of Semen vignae sinensis powdery mildew is by 14d
77.63%.Visible, obvious synergy after benzothiostrobin and nitre benzene bacterium ester binary built,
Lasting period is long, is used alone the preventive effect of Semen vignae sinensis powdery mildew significantly better than each single dose, meanwhile,
Process of the test not finding, this binary built medicament produces poisoning to Semen vignae sinensis.
Embodiment six: 65% benzothiostrobin nitre benzene bacterium ester water dispersible granules
Following material is all weight percentage: benzothiostrobin 45%, nitre benzene bacterium ester 20%, 12
Alkyl sodium sulfate (wetting agent) 5%, sodium acrylate and propionic acid amide. copolymer (dispersant) 5%,
Poly-naphthalene formaldehyde sulfonate salt 5% (diffusant), bentonite (disintegrating agent) 5%, white sugar (glue
Knot agent) 0.2%, anhydrous calcium chloride (stabilizer) 0.2%, organosiloxane (defoamer) 0.2%,
Mannitol (pH adjusting agent) 0.2%, kieselguhr (filler) supplies 100%.By above-mentioned activity
Composition, wetting agent, dispersant, diffusant, disintegrating agent, binding agent, stabilizer, defoamer,
PH adjusting agent and filler mix homogeneously, pulverize with micro jet, through mediating, then
Add and fluidized-bed granulation dryer carries out pelletize, dry, screening, can be prepared by 65% benzene thiophene
Bacterium ester nitre benzene bacterium ester water dispersible granules.
This embodiment is for Citrullus vulgaris powdery mildew: 65% benzothiostrobin nitre benzene bacterium ester water dispersible granules
Dispenser for the first time is carried out at Citrullus vulgaris powdery mildew their early stage, after 7d by 200g a.i./ha consumption
Carry out second time dispenser, separately set clear water and be processed as blank, after second time dispenser 14d pair
The preventive effect of Citrullus vulgaris powdery mildew is 93.84%；200g a.i./ha pressed by 20% benzothiostrobin suspending agent
Consumption carries out dispenser for the first time at Citrullus vulgaris powdery mildew their early stage, carries out second time dispenser after 7d,
Separately set clear water and be processed as blank, the 14d preventive effect to Citrullus vulgaris powdery mildew after second time dispenser
It is 74.87%；36% nitre benzene bacterium emulsifiable concentrate is sent out in Citrullus vulgaris powdery mildew by 200g a.i./ha consumption
The sick initial stage carries out dispenser for the first time, carries out second time dispenser, separately set clear water and be processed as sky after 7d
White comparison, after second time dispenser, 14d is 71.53% to the preventive effect of Citrullus vulgaris powdery mildew.It is visible,
Obvious synergy after benzothiostrobin and nitre benzene bacterium ester binary built, the lasting period is long, to west
The preventive effect of melon powdery mildew is used alone significantly better than each single dose, does not sends out in process of the test meanwhile
Now this binary built medicament produces poisoning to Citrullus vulgaris.
Embodiment seven: 75% benzothiostrobin nitre benzene bacterium ester wettable powder
Following material is all weight percentage: benzothiostrobin 65%, nitre benzene bacterium ester 10%, polyoxy
Ethylene triphenylethylene phosphenylic acid salt (wetting agent) 5%, sodium acrylate (are divided with propionic acid amide. copolymer
Powder) 5%, poly-naphthalene formaldehyde sulfonate salt 5% (diffusant), white carbon (filler) 5%,
Kieselguhr (filler) supplies 100%.By above-mentioned by active component, wetting agent, dispersant,
Diffusant and filler mixing, again through comminution by gas stream, mix homogeneously after mechanical activation comminution, can be prepared by
75% benzothiostrobin nitre benzene bacterium ester wettable powder.
This embodiment views and admires Flos Chrysanthemi powdery mildew for preventing and treating: 75% benzothiostrobin nitre benzene bacterium ester can
WP carries out first by 200g a.i./ha consumption viewing and admiring Flos Chrysanthemi powdery mildew their early stage
Secondary dispenser, carries out second time dispenser, separately sets clear water and be processed as blank, second after 7d
After secondary dispenser, 14d is 95.05% to the preventive effect viewing and admiring Flos Chrysanthemi powdery mildew；20% benzothiostrobin suspends
Agent carries out for the first time dispenser by 200g a.i./ha consumption viewing and admiring Flos Chrysanthemi powdery mildew their early stage,
Carry out second time dispenser after 7d, separately set clear water and be processed as blank, after second time dispenser
14d is 74.45% to the preventive effect viewing and admiring Flos Chrysanthemi powdery mildew；36% nitre benzene bacterium emulsifiable concentrate presses 200g
A.i./ha consumption carries out for the first time dispenser viewing and admiring Flos Chrysanthemi powdery mildew their early stage, carries out after 7d
Dispenser for the second time, separately sets clear water and is processed as blank, and after second time dispenser, 14d is to viewing and admiring
The preventive effect of Flos Chrysanthemi powdery mildew is 78.51%.Visible, benzothiostrobin and nitre benzene bacterium ester binary built
Rear obvious synergy, the lasting period is long, is significantly better than the preventive effect viewing and admiring Flos Chrysanthemi powdery mildew
Each single dose is used alone, and meanwhile, does not finds that this binary built medicament is to viewing and admiring in process of the test
Flos Chrysanthemi produces poisoning.
Embodiment eight: compounding indoor to cucumber powdery mildew's pathogen of benzothiostrobin and nitre benzene bacterium ester
Conjunction toxicity test is tested
Subjects:
Cucumber powdery mildew's pathogen Sphaerotheca fuliginea (Schlecht) Poll.
Test method:
With reference to " People's Republic of China's agricultural industry criteria NY/T1156.11 2008 pesticide
Indoor bioassay test rule antibacterial the 11st part: preventing and treating cucurbits powdery mildew test is potted plant
Method ".First single dose and each Mixed Pharmacy are arranged 5 variable concentrations gradients (preventive effect 5%～
Set by geometric progression in the range of 90%).With added with a small amount of surfactant (Tween 80)
Pure water, wash and take the Fresh spores covered with on Powdery Mildew cucumber leaves, use double gauze mistake
Filter, making spore concentration is 1 × 105The suspension of individual spore/milliliter, standby.Often process 3
Basin, repeats for 4 times, and sets the process work not containing effective ingredient containing only solvent and surfactant
Blank.After spore suspension inoculation 24h, medicinal liquid is uniformly sprayed in blade face to all
Moistening, moves to thermostatic chamber after medicinal liquid natural air drying, trains under conditions of temperature 20～24 DEG C
Support 7 days～10 days.When blank disease leaf rate reaches more than 80%, each process is investigated in classification
Incidence, often processes at least 30 leaves of investigation, and grade scale is:
0 grade: anosis；
1 grade: lesion area accounts for less than the 5% of one-piece blade area；
3 grades: lesion area accounts for the 6%～15% of one-piece blade area；
5 grades: lesion area accounts for the 16%～25% of one-piece blade area；
7 grades: lesion area accounts for the 26%～50% of one-piece blade area；
9 grades: lesion area accounts for the 50%～75% of one-piece blade area；
11 grades: lesion area accounts for more than the 75% of one-piece blade area.
Computational methods:
Disease index=[∑ (the sick number of sheets × relative level numerical value at different levels)/(investigation total leaf number ×
11)]×100。
Prevention effect (%)=[(comparison disease index-process disease index)/comparison disease index]
×100。
Carry out statistical analysis with DPS statistical analysis software, calculate the EC of each medicament50, and according to
The abundant method of Sun Yun calculates the co-toxicity coefficient (CTC value) of mixture.
Actual measurement toxicity index (ATI)=(standard agent EC50/ reagent agent EC50)×100。
Percentage composition+the B of A in theoretical toxicity index (TTI)=A medicament toxicity index × mixture
The percentage composition of B in medicament toxicity index × mixture.
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (ATI)/mixture theory virulence refers to
Number (TTI)] × 100.
According to the NY/T11547.7-2006 insecticide combination effect criteria for classifying: co-toxicity coefficient
(CTC) >=120 show as potentiation；Co-toxicity coefficient (CTC)≤80 shows as antagonism and makees
With；80 ＜ co-toxicity coefficient (CTC) ＜ 120 show as summation action.
Table 1, benzothiostrobin and the nitre benzene bacterium ester indoor joint toxicity measuring result to cucumber powdery mildew's pathogen
| Medicament title and proportioning (weight ratio) | EC50(mg/L) | ATI | TTI | CTC |
| Benzothiostrobin | 14.28 | 100.00 | - | - |
| Nitre benzene bacterium ester | 10.91 | 130.89 | - | - |
| Benzothiostrobin: nitre benzene bacterium ester (10:1) | 9.65 | 147.98 | 102.81 | 143.94 |
| Benzothiostrobin: nitre benzene bacterium ester (8:1) | 8.37 | 170.61 | 103.43 | 164.95 |
| Benzothiostrobin: nitre benzene bacterium ester (6:1) | 7.63 | 187.16 | 104.41 | 179.25 |
| Benzothiostrobin: nitre benzene bacterium ester (4:1) | 7.02 | 203.42 | 106.18 | 191.58 |
| Benzothiostrobin: nitre benzene bacterium ester (2:1) | 6.16 | 231.82 | 110.30 | 210.17 |
| Benzothiostrobin: nitre benzene bacterium ester (1:1) | 5.49 | 260.11 | 115.45 | 225.30 |
| Benzothiostrobin: nitre benzene bacterium ester (1:2) | 5.01 | 285.03 | 120.59 | 236.36 |
| Benzothiostrobin: nitre benzene bacterium ester (1:4) | 5.22 | 273.56 | 124.71 | 219.36 |
| Benzothiostrobin: nitre benzene bacterium ester (1:6) | 5.83 | 244.94 | 126.48 | 193.66 |
| Benzothiostrobin: nitre benzene bacterium ester (1:8) | 6.51 | 219.35 | 127.46 | 172.09 |
| Benzothiostrobin: nitre benzene bacterium ester (1:10) | 7.14 | 200.00 | 128.08 | 156.15 |
As it can be seen from table 1 benzothiostrobin and nitre benzene bacterium ester are 10:1～1:10 (by weight)
In the range of compounding time, co-toxicity coefficient (CTC) is all higher than 120, equal to cucumber powdery mildew's pathogen
Show synergistic function；Benzothiostrobin and nitre benzene bacterium ester are 2:1～1:4 (by weight)
In the range of, synergistic function is the most notable, and co-toxicity coefficient (CTC) is all more than 200；
Benzothiostrobin and nitre benzene bacterium ester compound with 1:2 (by weight), and synergistic function is the most notable,
Co-toxicity coefficient (CTC) is 236.36.Visible, benzothiostrobin and nitre benzene bacterium ester compound has conjunction
Rationality and feasibility.
In sum, what the present invention provided is a kind of containing benzothiostrobin with the sterilization group of nitre benzene bacterium ester
Compound, obvious synergy, compared with existing unitary agent, sick on preventing and treating crops
The effect of evil significantly improves, and to Crop securify, is worth popularization and application in agricultural production.
Claims (7)
1. one kind contains benzothiostrobin and the bactericidal composition of nitre benzene bacterium ester, it is characterised in that:
Effective ingredient is benzothiostrobin and nitre benzene bacterium ester, and the weight ratio of benzothiostrobin and nitre benzene bacterium ester is
10:1～1:10.
The most according to claim 1 a kind of containing benzothiostrobin with the sterilization of nitre benzene bacterium ester
Compositions, it is characterised in that: the weight ratio of benzothiostrobin and nitre benzene bacterium ester is 2:1～1:4.
The most according to claim 1 a kind of containing benzothiostrobin with the sterilization of nitre benzene bacterium ester
Compositions, it is characterised in that: the weight ratio of benzothiostrobin and nitre benzene bacterium ester is 1:2.
The most according to claim 1 a kind of containing benzothiostrobin with the sterilization of nitre benzene bacterium ester
Compositions, it is characterised in that: benzothiostrobin and nitre benzene bacterium ester weight summation weight in the composition
Amount percentage ratio is 1%～85%.
The most according to claim 3 a kind of containing benzothiostrobin with the sterilization of nitre benzene bacterium ester
Compositions, it is characterised in that: benzothiostrobin and nitre benzene bacterium ester weight summation weight in the composition
Amount percentage ratio is 10%.
The most according to claim 1 a kind of containing benzothiostrobin with the sterilization of nitre benzene bacterium ester
Compositions, it is characterised in that: the dosage form of described bactericidal composition be microcapsule suspending agent, suspending agent,
One in aqueous emulsion, microemulsion, water dispersible granules, wettable powder and ultra low volume liquids.
7. a kind of described in claim 1 is containing benzothiostrobin with the Bactericidal composite of nitre benzene bacterium ester
Thing is in the application of preventing and treating crop powdery mildew.
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| CN201610525501.0A CN105961405A (en) | 2016-07-05 | 2016-07-05 | Bactericidal composition containing benzothiostrobin and meptyldinocap |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107136097A (en) * | 2017-06-07 | 2017-09-08 | 广西南宁乐蕊生物科技有限责任公司 | A kind of bactericidal composition |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107136097A (en) * | 2017-06-07 | 2017-09-08 | 广西南宁乐蕊生物科技有限责任公司 | A kind of bactericidal composition |
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