CN103975935B - A kind of bactericidal composition preventing and treating crops soil-borne disease - Google Patents
A kind of bactericidal composition preventing and treating crops soil-borne disease Download PDFInfo
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Abstract
The invention discloses a kind of bactericidal composition preventing and treating crops soil-borne disease, said composition is made up of following three kinds of active component and auxiliary agent, its percentage by weight is: Metalaxyl-M 0.5 20%, Fluoxastrobin or pyraclostrobin 2-30%, 2-cyano-3-amino-3-phenylancryic acetate 2-30%, adjuncts Balance, combination dosage form is seed treatment microcapsule suspending agent or suspension seed-coating agent.Instant component is reasonable, compared with existing unitary agent, in addition to having good bactericidal effect, and has significant potentiation, good to crop safety.The present invention has excellent prevention effect to cotton seedling blight, Cotton Gossypii damping off, Roots of Peanut maize ear rot, peanut stem basal stem rot.
Description
Technical field
The present invention relates to a kind of bactericidal composition preventing and treating crops soil-borne disease, by active component Metalaxyl-M, phonetic bacterium
Ester or pyraclostrobin, 2-cyano-3-amino-3-phenylancryic acetate and auxiliary agent composition, belong to technical field of compounded pesticide.
Background technology
Metalaxyl-M, English common name metalaxyl-M, chemical name N-(2,6-xylyl)-N-(methoxyl group acetyl
Base)-D-alanine methyl ester, Metalaxyl-M is higher to crop pest activity than metalaxyl, to Pseudoperonospora cubensis, phytophthora pathogenic bacteria, rotten mould
The crop pest preventive effects such as vegetable caused by pathogenic bacteria, fruit tree, Nicotiana tabacum L., oil plant, Cotton Gossypii, grain are excellent.
Methoxy acrylic acid series bactericidal agent mainly acts on the cytochrome b el in the mitochondrial respiratory chain of fungus and is combined
Thing, stops electron transmission thus suppresses fungus to grow.Have protection, treat, root out, permeate, systemic activity.Fluoxastrobin, pyrazoles
Kresoxim-methyl is the principal item of methoxy acrylic acid series bactericidal agent.
Fluoxastrobin, other Chinese name: Amici reaches, English common name: azoxystrobin, chemical name: (E) 2-[2-
[6-(2-cyano-benzene oxygen) pyrimidine-4-yl oxygen] phenyl]-3-methoxy-methyl acrylate.Efficiently, wide spectrum, almost can prevent and treat
All fungal diseases, as powdery mildew, rust, glume blight, net blotch, downy mildew, rice blast etc. are all had good activity, have
Protect, root out, permeate and systemic action, sprouting and the growth of mycelia of spore can be suppressed.Can be used at stem and leaf process, seed
Reason, it is also possible to carry out soil treatment.Suitable crop be corn, Oryza sativa L., Fructus Vitis viniferae, Rhizoma Solani tuber osi, vegetable, fruit tree, beans and other
Crop etc..
Pyraclostrobin, has another name called pyraclostrobin, English common name: Pyraclostrobin, chemical name: N-{2-[1-
(4-chlorphenyl)-1H-pyrazole-3-yl oxygen methyl] phenyl } (N-methoxyl group) carbamate.All types of fungus can be prevented and kill off
Pathogen, fungicidal spectrum is wide, to various crop, including wheat and barley, Fructus Vitis viniferae, fruit tree, vegetable multiple diseases effective, be mainly used in preventing and treating
Uncinula necator, downy mildew；Wheat powdery mildew, rust；Leaf rust of barley；Fructus Musae black leaf cecospora spot；Fructus Lycopersici esculenti morning, late blight etc..
2-cyano-3-amino-3-phenylancryic acetate, chemical name: 2-cyano group-3-phenyl-3-aminoacrylic acid ethyl ester, belong to cyanoacrylate, be
The new type bactericide that Jiangsu Pesticide Research Institute Co., Ltd is independently formulated.2-cyano-3-amino-3-phenylancryic acetate poison efficient, micro-, low-residual, right
Environmental friendliness, has protection and therapeutical effect to by the microbial all kinds of plant diseases of reaping hook, can be applicable to prevent and treat Fusarium spp. and draws
The wheat scab that rises, cotton wilt, banana Panama disease, bakanae disease of rice, watermelon blight etc..
Soil-borne disease refers to that pathogen is lived in soil, encroaches on crop from crop root or stem and draws when condition is suitable
The disease risen.Cause of disease includes fungus, antibacterial, actinomycetes, nematicide etc..Wherein fungus is main, such as root rot, damping off, damping-off
Deng being exactly by fungus-caused important soil-borne disease.After soil-borne disease morbidity, being relatively difficult to preventing and treating, pathogenic bacteria survives the winter in soil,
Continuing infringement crop the coming year, so circulate, disease is increasingly severe.Preventing and treating this kind of disease pesticide-treated seed is simple, warp
Ji, effective method.Pesticide in Ministry of Agriculture's registration preventing and treating crops soil-borne disease with thiram, carbendazim and compounds at present
Preparation is main, has used for many years on producing, and resistance increases year by year, and drug effect is poor, a kind of to soil-borne disease in the urgent need to invention
The medicament that preventive effect is good.
The document report of Metalaxyl-M, Fluoxastrobin or pyraclostrobin and 2-cyano-3-amino-3-phenylancryic acetate mixture is there is presently no through retrieval.
Inventor is found by experiment that, is compounded by a certain percentage by above-mentioned three kinds of pesticide different for the mechanism of action and is used for preventing and treating crop soil biography
Disease, has obvious potentiation, can significantly improve prevention effect, effectively solves the problem that soil-borne disease of crop preventing and treating is difficult.
Summary of the invention
It is an object of the invention to provide a kind of bactericidal composition preventing and treating crops soil-borne disease, this bactericidal composition group
Deciliter reason, potentiation is notable, and bactericidal effect is good, to crop safety.
Another object of the present invention is to provide the application of above-mentioned bactericidal composition.
In order to overcome the defect of prior art, the technical scheme is that so solution:
A kind of bactericidal composition preventing and treating crops soil-borne disease, is made up of following three kinds of active component and auxiliary agent, and it is heavy
Amount percentage ratio is: Metalaxyl-M 0.5 20%, Fluoxastrobin or pyraclostrobin 2-30%, 2-cyano-3-amino-3-phenylancryic acetate 2-30%, adjuncts Balance.
Bactericidal composition of the present invention prevents and treats crops soil-borne disease for seed treatment, and the preparation formulation being suitable for preparation is to plant
Son processes microcapsule suspending agent, suspension seed-coating agent.
Seed treatment microcapsule suspending agent, formula composition is mainly, effective ingredient, capsule-core solvent, cyst material (oiliness), capsule
Wall material (aqueous), emulsifying agent, dispersant, antifreezing agent, thickening agent, stain, film former, deionized water.Capsule-core solvent is selected from
Toluene, dimethylbenzene, solvent naphtha S-150, solvent naphtha S-200, ethanol, isopropanol, n-butyl alcohol, n-octyl alcohol, n-amyl alcohol, acetone, ring
Hexanone, hexane, dimethylformamide, N-Methyl pyrrolidone, acetonitrile, dichloromethane, ethyl acetate, methyl oleate, adjacent benzene two
Formic acid dibutyl ester etc..Cyst material (oiliness) is selected from methyl diphenylene diisocyanate, hexamethylene diisocyanate, 4,4'-
The polyisocyanates such as dicyclohexyl methyl hydride diisocyanate.Cyst material (aqueous) selected from ethylene glycol, glycerol, ethylenediamine, third
Diamidogen, the third triamine, water etc. containing multi-hydroxy or polynary amido or generate containing both the above group with oiliness monomer reaction
Compound.Emulsifying agent is selected from agriculture breast 33#, agriculture breast 34#, agriculture breast 500#, agriculture breast 600#, Nongru-700 #, agriculture breast 1601#, agriculture breast
1602#, T60, S80, TX-10, OP-10, NP-10 etc..Dispersant is selected from dispersant NNO, sodium lignin sulfonate, lignin sulfonic acid
Calcium, dispersant 2700, polycarboxylate salt dispersant, phosphate dispersant etc..Antifreezing agent is selected from ethylene glycol, propylene glycol, glycerol, urine
Element, sodium chloride etc..Thickening agent is selected from xanthan gum, polyvinyl alcohol, aluminium-magnesium silicate, Arabic glue etc..Film former is selected from polysaccharide
Macromolecular compound, cellulose derivative, alginate, agar, Colophonium, paraffin, gelatin, pectin, polyvinyl alcohol, poly-second two
Alcohol, polyvinyl acetate, polyacrylamide, polyvinylpyrrolidone and polyhydric alcohol polymer water solublity composite etc..Defoamer
Selected from silicone, higher alcohols etc..Stain is selected from rose-red, magenta, big reddish yellow, orchid, purple etc..
To suspension seed-coating agent, spendable auxiliary agent has: binding agent such as polysaccharide macromolecular compound is (soluble starch, poly-
Propylene graft copolymer, Xanthan gum, microorganism mucilage), (hydroxypropyl methyl cellulose, carboxymethyl are fine for cellulose derivative
Dimension element sodium, ethyl cellulose), seaweeds such as sodium alginate, agar, Colophonium, paraffin, gelatin, pectin, polyvinyl alcohol, poly-second two
Alcohol, polyvinyl acetate, polyacrylamide, polyvinylpyrrolidone and polyhydric alcohol polymer water solublity composite, inorganic bond
In agent (aluminium-magnesium silicate, clay, waterglass, Gypsum Fibrosum) one or more；Dispersant such as polycarboxylate, lignosulfonates, alkyl
Naphthalene sulfonate, Huntsman Corporation of the TERSPERSE 2020(U.S. produce, alkyl naphthalene sulfonic acid salt) in one or more；Emulsifying agent
Such as Nongru-700 #(common name: alkyl phenol formaldehyde resin polyoxyethylene ether), agriculture breast 2201, this dish-60#(common name: sorbitol anhydride
Monostearate), emulsifying agent T-60(common name: sorbitan monostearate polyoxyethylene ether), breast 1601#(is general in agriculture
Name: phenethyl phenol polyoxyethylene poly-oxygen propylene aether), Huntsman Corporation of the TERSPERSE 4894(U.S. produces) in one or
Multiple；Wetting agent such as alkylphenol-polyethenoxy base ether formaldehyde condensation products sulfate, alkylphenol-polyethenoxy base ether phosphate, benzene second
Base phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE 2500(U.S. Hensel
Step company produce) in one or more；In thickening agent such as xanthan gum, polyvinyl alcohol, bentonite one or more；Preservative such as first
In aldehyde, benzoic acid, sodium benzoate one or more；Defoamer such as silicone defoamer；Antifreezing agent such as ethylene glycol, propylene glycol,
In glycerol, carbamide, inorganic salts such as sodium chloride one or more；Warning coloration dye Rose Bengal, magenta, big reddish yellow, orchid, purple isochrome
In one；Water is deionized water.
Instant component is reasonable, and bactericidal effect is good, and drug cost is low, and its activity and bactericidal effect are not each composition activities
Simple superposition, but have significant potentiation, good to crop safety, meet the security requirement of pesticidal preparations.This
Bright have higher bactericidal activity to crops soil-borne disease.
Detailed description of the invention
In order to prevent and treat cotton seedling blight in agricultural production, Cotton Gossypii damping off, Roots of Peanut maize ear rot, peanut stem basal stem rot, send out
A person of good sense studies with having carried out the most compounding potentiation with 2-cyano-3-amino-3-phenylancryic acetate, specifically with Metalaxyl-M, Fluoxastrobin (or pyraclostrobin)
Method is: subjects is cotton seedling blight (Rhizoctonia solani), Cotton Gossypii damping off (Pythium
Aphanidermatum (Eds.) Fitzp.), Roots of Peanut maize ear rot (Fusarium solani (Mart.) Sacc.), peanut stem
Basal stem rot (Diplodia gossypina Cooke).Former medicine is configured to the test medicine needed.First by single dose and each mixed
Dose out powders arranges 5 variable concentrations gradients, and (on the basis of pilot study result, bacteriostasis rate is pressed in the range of 5%～90%
Set than progression).If clear water compares, it is repeated 3 times.Test uses mycelial growth rate method, by cultured pathogen, aseptic
Under the conditions of with a diameter of 5 mm card punch, cut bacterium cake from colony edge, with Inoculating needle, bacterium cake be connected to different agents concentration
On culture medium flat plate, put 28 DEG C, saturated humidity incubator is cultivated；When matched group bacterium colony covers with, measure colony diameter, calculate each
The percentage rate of chemicals treatment suppression mycelial growth, by linear time between probit value and the logarithm value of series concentration of suppression ratio
Return analysis, obtain the EC of each medicament50Value, Wadley method calculates the coefficient of synergism (SR) of mixture, evaluates the synergy class of mixture
Type, SR<0.5 is antagonism, and 0.5≤SR≤1.5 are summation action, and SR>1.5 is synergistic function.
Toxicity test result shows: bactericidal composition of the present invention is by following percentage by weight mixture: Metalaxyl-M 0.5～
20%, Fluoxastrobin or pyraclostrobin 2～30%, 2-cyano-3-amino-3-phenylancryic acetate 2～30%, to cotton seedling blight, Cotton Gossypii damping off, Semen arachidis hypogaeae root-rot
Sick, peanut stem basal stem rot has preferable virulence, has significant potentiation.
Below in conjunction with embodiment, present invention is described further.
Example of formulations 1
Weigh 2% Metalaxyl-M, 5% Fluoxastrobin (or pyraclostrobin), 10% 2-cyano-3-amino-3-phenylancryic acetate, 7% solvent naphtha S-150,4% different
Propanol, 6% hexamethylene diisocyanate, 3% glycerol, 3% agriculture breast 500#, 3%NP-10,2% dispersant 2700,2% ethylene glycol,
2% xanthan gum, 0.3% magenta, 2% polyvinyl alcohol, 0.5% organic silicon defoamer, surplus are deionized water.
Processing and preparation method is:
Step 1, by Fluoxastrobin (or pyraclostrobin), the former medicine of 2-cyano-3-amino-3-phenylancryic acetate and wetting dispersing agent, antifreezing agent, thickening agent,
Stain, film former and water are mixed together uniformly, then carry out sand milling, add defoamer during sand milling, and sand milling is to mean diameter 5 microns
Hereinafter, Fluoxastrobin (or pyraclostrobin) 2-cyano-3-amino-3-phenylancryic acetate suspension is obtained.
Step 2, is dissolved in former for Metalaxyl-M medicine in capsule-core solvent, adds emulsifier for mixing uniformly, adds cyst wall material
Material (oiliness), is uniformly mixed as oil phase；Cyst material (aqueous) and part thickening agent are added stirring in deionized water equal
Even for aqueous phase；Oil phase and aqueous phase are mixed, shears by high-shear emulsion machine, form uniform emulsion, stir at a proper temperature
Mix reaction encystation, then elevated cure, obtain Metalaxyl-M microcapsule suspensions.
Step 3, by step 1 gained Fluoxastrobin (or pyraclostrobin) 2-cyano-3-amino-3-phenylancryic acetate suspension and step 2 gained essence first
Frost spirit microcapsule suspensions mixing, adds remaining thickening agent, dispersant and antifreezing agent, stain, film former on demand, uses
Deionized water is supplied, and just can get 2% Metalaxyl-M 5% Fluoxastrobin (or pyraclostrobin) 10% 2-cyano-3-amino-3-phenylancryic acetate seed treatment
Microcapsule suspending agent.
Example of formulations 2
Weigh 0.5% Metalaxyl-M, 30% Fluoxastrobin (or pyraclostrobin), 2% 2-cyano-3-amino-3-phenylancryic acetate, 8% Ketohexamethylene, 6% isopropyl
Alcohol, 5% methyl diphenylene diisocyanate, 1% propylene glycol, 3% agriculture breast 2201#, 3% TX-10,2% calcium lignosulfonate, 1% second two
Alcohol, 2% xanthan gum, 0.3% rose-red, 2% polyvinyl alcohol, 0.5% organic silicon defoamer, surplus are deionized water.
Processing and preparation method is:
Step 1, by Fluoxastrobin (or pyraclostrobin), the former medicine of 2-cyano-3-amino-3-phenylancryic acetate and wetting dispersing agent, antifreezing agent, thickening agent,
Stain, film former and water are mixed together uniformly, then carry out sand milling, add defoamer during sand milling, and sand milling is to mean diameter 5 microns
Hereinafter, Fluoxastrobin (or pyraclostrobin) 2-cyano-3-amino-3-phenylancryic acetate suspension is obtained.
Step 2, is dissolved in former for Metalaxyl-M medicine in capsule-core solvent, adds emulsifier for mixing uniformly, adds cyst wall material
Material (oiliness), is uniformly mixed as oil phase；Cyst material (aqueous) and part thickening agent are added stirring in deionized water equal
Even for aqueous phase；Oil phase and aqueous phase are mixed, shears by high-shear emulsion machine, form uniform emulsion, stir at a proper temperature
Mix reaction encystation, then elevated cure, obtain Metalaxyl-M microcapsule suspensions.
Step 3, by step 1 gained Fluoxastrobin (or pyraclostrobin) 2-cyano-3-amino-3-phenylancryic acetate suspension and step 2 gained essence first
Frost spirit microcapsule suspensions mixing, adds remaining thickening agent, dispersant and antifreezing agent, stain, film former, uses deionization
Water is supplied, and just can get 0.5% Metalaxyl-M 30% Fluoxastrobin (or pyraclostrobin) 2% 2-cyano-3-amino-3-phenylancryic acetate seed treatment microcapsule
Suspending agent.
Example of formulations 3
Weigh 1% Metalaxyl-M, 15% Fluoxastrobin (or pyraclostrobin), 20% 2-cyano-3-amino-3-phenylancryic acetate, 1%TERSPERSE 2700
(polycarboxylate, Huntsman Corporation of the U.S. produce), Huntsman Corporation of the 1%TERSPERSE 2500(U.S. produce), 3%
Huntsman Corporation of the TERSPERSE 4894(U.S. produces), 2.0% polyvinylpyrrolidone, 0.2% xanthan gum, 5% ethylene glycol,
0.3% benzoic acid, 0.5% organic silicon defoamer (trade name: s-29 Nanjing "four news" (new ideas applied chemistries product company produces), 0.2% Flos Rosae Rugosae
Red, deionized water adds to 100% weight portion.Above-mentioned raw materials is blended, high speed shear dispersion 30min, prepares with after sand mill sand milling
1% Metalaxyl-M 15% Fluoxastrobin (or pyraclostrobin) 20% 2-cyano-3-amino-3-phenylancryic acetate suspension seed-coating agent.
Example of formulations 4
Weigh 3% Metalaxyl-M, 6% Fluoxastrobin (or pyraclostrobin), 15% 2-cyano-3-amino-3-phenylancryic acetate, 3%TERSPERSE 4894,2%
TERSPERSE 2500,2%TERSPERSE 2020,1.5% hydroxypropyl methyl cellulose, 0.5% bentonite, 3% ethylene glycol,
0.3% sodium benzoate, 0.5% organic silicon defoamer, 0.3% magenta, deionized water add to 100% weight portion.Above-mentioned raw materials is blended,
High speed shear dispersion 30min, with preparing 3% Metalaxyl-M 6% Fluoxastrobin (or pyraclostrobin) 15% cyanogen after sand mill sand milling
Alkene bacterium ester suspension seed-coating agent.
Example of formulations 5
Weigh 5% Metalaxyl-M, 8% Fluoxastrobin (or pyraclostrobin), 30% 2-cyano-3-amino-3-phenylancryic acetate, 3% sodium lignin sulfonate, 1%
TERSPERSE 2500,2%TERSPERSE 2020,1.5% ethyl cellulose, 1% polyvinyl alcohol, 5% propylene glycol, 0.2% benzene first
Acid sodium, 0.5% organic silicon defoamer, 0.3% magenta, deionized water add to 100% weight portion.Above-mentioned raw materials is blended, high speed shear
Dispersion 30min, hangs with preparing 5% Metalaxyl-M 8% Fluoxastrobin (or pyraclostrobin) 30% 2-cyano-3-amino-3-phenylancryic acetate after sand mill sand milling
Floating seed coat agent.
Example of formulations 6
Weigh 20% Metalaxyl-M, 2% Fluoxastrobin (or pyraclostrobin), 5% 2-cyano-3-amino-3-phenylancryic acetate, 3% sodium lignin sulfonate, 1%
TERSPERSE 2500,2%TERSPERSE 2020,2% sodium carboxymethyl cellulose, 1% polyacrylamide, 5% ethylene glycol, 0.2%
Sodium benzoate, 0.5% organic silicon defoamer, 0.3% magenta, deionized water add to 100% weight portion.Above-mentioned raw materials is blended, at a high speed
Shear dispersion 30min, with preparing 5% Metalaxyl-M 8% Fluoxastrobin (or pyraclostrobin) 30% cyanogen alkene bacterium after sand mill sand milling
Ester suspension seed-coating agent.
Biological Examples 1: preventing and treating cotton seedling blight field test
Inventor in 2013 Shaanxi Province's Weinan City carried out example of formulations 1(2% Metalaxyl-M 5% Fluoxastrobin or
Pyraclostrobin 10% 2-cyano-3-amino-3-phenylancryic acetate seed treatment microcapsule suspending agent) preventing and treating cotton seedling blight field test.Trial crops is cotton
Flower, kind is silver mountain 1, belongs to susceptible variety.Seed treatment is taked in test, needs 2.5 liters by processing double centner lint dry seeds
Medicinal liquid (preparation+clear water) configures appropriate medicinal liquid, pours into and fully turns on the seed of plastic sheeting, until seed uniformly after medicine, fall
Going out to spread out and be placed in ventilation, sow after drying in the shade, comparison equivalent clear water processes.Plant Cotton Gossypii in experimental plot throughout the year, middle fertility, in
Loam, cultivation management is with general land for growing field crops.Plot area 40, often processes 4 times and repeats, and random district group arranges.
Investigation and statistical method, investigate emergence rate, (preventing and treating) effect of keeping a full stand of seedings.Emerge and 50% institute an inquiry, investigation one in every 3 days
Secondary Seedling number of dying of illness, to no longer dead Seedling.
Seedling protecting effect (%)=[(blank district death rate-treatment region death rate)/blank district death rate] × 100.
Field test results shows: 2% Metalaxyl-M 5% Fluoxastrobin 10% 2-cyano-3-amino-3-phenylancryic acetate seed treatment microcapsule suspending agent,
2% Metalaxyl-M 5% pyraclostrobin 10% 2-cyano-3-amino-3-phenylancryic acetate seed treatment microcapsule suspending agent presses 200g/100kg seed respectively
Cotton seeds is processed by consumption, have good prevention effect, seedling protecting effect to be respectively 93.3% to cotton seedling blight,
94.8%.Be substantially better than 35% Metalaxyl-M seed treatment Emulsion 80g/100kg seed, 10% Fluoxastrobin suspension seed-coating agent 500g/
100kg seed, 10% pyraclostrobin suspension seed-coating agent 500g/100kg seed, 25% 2-cyano-3-amino-3-phenylancryic acetate suspension seed-coating agent 300g/
The 100kg seed treatment seedling protecting effect to cotton seedling blight, potentiation is notable.
Security survey, chemicals treatment after planting irregularly observes to harvest time, and cotton growth is pacified by all reagent agents
Entirely, occur without poisoning phenomenon.
After result of the test shows Metalaxyl-M, Fluoxastrobin (or pyraclostrobin) and 2-cyano-3-amino-3-phenylancryic acetate mixture, hence it is evident that improve
Prevention effect to cotton seedling blight, reduces dosage, to cotton growth safety.
Biological Examples 2: preventing and treating Roots of Peanut maize ear rot field test
Inventor has carried out example of formulations 4(3% Metalaxyl-M 6% Fluoxastrobin in 2013 in Xinxiang City of province of Henan Province
Or pyraclostrobin 15% 2-cyano-3-amino-3-phenylancryic acetate suspension seed-coating agent) preventing and treating Roots of Peanut maize ear rot field test.Trial crops is Semen arachidis hypogaeae, product
Planting and spend 14 for Henan, the experimental plot soil texture is medium loam, and long-term root rot occurs serious.Seed treatment is taked in test, by place
Reason double centner peanut seed needs 2 liters of medicinal liquids (preparation+clear water) to configure appropriate medicinal liquid, and fully after dilution, sprinkle is at the Semen arachidis hypogaeae weighed up
On seed, fully mix thoroughly after drying in the air 4 hours sow, use artificial dibbling, line-spacing 30cm, cave away from 20cm, every 667 application rates
13Kg.Comparison equivalent clear water processes peanut seed.Often process 4 times and repeat, every plot area 40, Gong20Ge community, at random
District's group arrangement.
Investigation and statistical method
Respectively at seeding stage, florescence and full fruit period of maturation, using " Z " font 5 point sampling, every takes 10 strains, investigation
A situation arises for Roots of Peanut maize ear rot, statistics morbidity strain number, calculates sickness rate and prevention effect.Determination of yield is carried out in harvest time,
Being received by each community Semen arachidis hypogaeae list respectively, weigh after drying, statistics different agents processes the impact on yield.
Seedling protecting effect (%)=[(check plot sickness rate-treatment region sickness rate)/check plot sickness rate] × 100.
Field test results shows: 3% Metalaxyl-M 6% Fluoxastrobin 15% 2-cyano-3-amino-3-phenylancryic acetate suspension seed-coating agent, 3% essence first frost
Spirit 6% pyraclostrobin 15% 2-cyano-3-amino-3-phenylancryic acetate suspension seed-coating agent, is entered peanut seed by 150g/100kg seed consumption respectively
After row processes, the preventive effect of Roots of Peanut maize ear rot is respectively 90.5%, 93.1%, increases production 43.2% and 44.6% than not medication.The most excellent
In 35% Metalaxyl-M seed treatment Emulsion 80g/100kg seed, 10% Fluoxastrobin suspension seed-coating agent 500g/100kg seed,
At 10% pyraclostrobin suspension seed-coating agent 500g/100kg seed, 25% 2-cyano-3-amino-3-phenylancryic acetate suspension seed-coating agent 300g/100kg seed
The reason prevention effect to Roots of Peanut maize ear rot, potentiation is notable, and rate of growth is also apparently higher than these 4 kinds of medicaments.
Security survey, chemicals treatment after planting irregularly observes to harvest time, and Semen arachidis hypogaeae emerged by all reagent agents, raw
Length has no adverse effects, and occurs without poisoning phenomenon.
After result of the test shows Metalaxyl-M, Fluoxastrobin (or pyraclostrobin) and 2-cyano-3-amino-3-phenylancryic acetate mixture, hence it is evident that improve
Prevention effect to Roots of Peanut maize ear rot, reduces dosage, to peanut growth safety.
From above example, bactericidal composition of the present invention press following percentage by weight mixture: Metalaxyl-M 0.5～
20%, Fluoxastrobin (or pyraclostrobin) 2～30%, 2-cyano-3-amino-3-phenylancryic acetate 2～30%, can be made into seed treatment microcapsule suspending agent, suspend and plant
Clothing agent dosage form, to cotton seedling blight, damping off, Roots of Peanut maize ear rot, base rot disease have significant prevention effect, have dosage
Less, prevention effect advantages of higher, saved drug cost, and good to crop safety, therefore produced and be widely used
Prospect.
In sum, the present invention prevents and treats the bactericidal composition of crops soil-borne disease is to use the compounding side of 3 kinds of active component
Case, its activity and protection effect are not the simple superposition of each composition activity, compared with existing unitary agent, except having significantly
Outside protection effect, and there is significant potentiation, good to crop safety, meet the security requirement of pesticidal preparations.
Claims (1)
1. the preparation method of a microcapsule suspending agent, it is characterised in that: microcapsule suspending agent is by following three kinds of active component and auxiliary agent
Composition, its percentage by weight is: Metalaxyl-M 0.5～20%, Fluoxastrobin 2～30%, 2-cyano-3-amino-3-phenylancryic acetate 2～30%, adjuncts Balance,
Preparation method comprises the following steps:
(1) Fluoxastrobin, the former medicine of 2-cyano-3-amino-3-phenylancryic acetate are mixed together with dispersant, antifreezing agent, thickening agent, stain, film former and water
Uniformly, then carrying out sand milling, add defoamer during sand milling, sand milling, to mean diameter less than 5 microns, obtains Fluoxastrobin 2-cyano-3-amino-3-phenylancryic acetate
Suspension；
(2) former for Metalaxyl-M medicine is dissolved in capsule-core solvent, adds emulsifier for mixing uniformly, add oiliness cyst material,
It is uniformly mixed as oil phase；Aqueous cyst material and part thickening agent are added in deionized water and is stirred for aqueous phase；Will
Oil phase and aqueous phase mixing, shear by high-shear emulsion machine, forms uniform emulsion, stirring reaction encystation, then elevated cure, obtains smart
Metalaxyl microcapsule suspensions；
(3) step (1) gained Fluoxastrobin 2-cyano-3-amino-3-phenylancryic acetate suspension is mixed with step (2) gained Metalaxyl-M microcapsule suspensions
Close, add remaining thickening agent, dispersant, antifreezing agent, stain, film former, supply with deionized water；
Above-mentioned capsule-core solvent is selected from toluene, dimethylbenzene, solvent naphtha S-150, solvent naphtha S-200, ethanol, isopropanol, n-butyl alcohol, just
Capryl alcohol, n-amyl alcohol, acetone, Ketohexamethylene, hexane, dimethylformamide, N-Methyl pyrrolidone, acetonitrile, dichloromethane, acetic acid second
Ester, methyl oleate, dibutyl phthalate；
Oiliness cyst material is selected from methyl diphenylene diisocyanate, hexamethylene diisocyanate, 4,4'-dicyclohexyl methyl hydride
Diisocyanate；
Aqueous cyst material is selected from ethylene glycol, glycerol, ethylenediamine, propane diamine, the third triamine, water；
Emulsifying agent is selected from agriculture breast 33#, agriculture breast 34#, agriculture breast 500#, agriculture breast 600#, Nongru-700 #, agriculture breast 1601#, agriculture breast
1602#、T60、S80、TX-10、OP-10、NP-10；
Dispersant is selected from dispersant NNO, sodium lignin sulfonate, calcium lignosulfonate, polycarboxylate salt dispersant, phosphate ester dispersion
Agent；
Antifreezing agent is selected from ethylene glycol, propylene glycol, glycerol, carbamide, sodium chloride；
Thickening agent is selected from xanthan gum, polyvinyl alcohol, aluminium-magnesium silicate, Arabic glue；
Film former is selected from cellulose derivative, alginate, agar, Colophonium, paraffin, gelatin, pectin, polyvinyl alcohol, poly-second two
Alcohol, polyvinyl acetate, polyacrylamide, polyvinylpyrrolidone and polyhydric alcohol polymer water solublity composite；
Defoamer is selected from silicone, higher alcohols；
Stain is selected from rose-red, magenta.
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| CN201410227381.7A CN103975935B (en) | 2014-05-28 | 2014-05-28 | A kind of bactericidal composition preventing and treating crops soil-borne disease |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109938025A (en) * | 2019-04-15 | 2019-06-28 | 湖南速博生物技术有限公司 | A kind of seed treatment compositions |
| CN112889834B (en) * | 2019-06-06 | 2021-12-14 | 上海明德立达生物科技有限公司 | Preparation method and application of metalaxyl-M-pyraclostrobin microcapsule suspending agent |
| CN114230395B (en) * | 2021-12-16 | 2022-12-06 | 河北安格诺农化有限公司 | Slow-release pesticide-fertilizer composition and application thereof |
| AR127992A1 (en) * | 2021-12-21 | 2024-03-13 | Syngenta Crop Protection Ag | AGROCHEMICAL COMPOSITION |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102696645A (en) * | 2012-05-09 | 2012-10-03 | 广东中迅农科股份有限公司 | Pesticide composition containing pyraclostrobin and metalaxyl |
| CN102715156A (en) * | 2012-06-29 | 2012-10-10 | 陕西上格之路生物科学有限公司 | Sterilization composition containing js399-19 |
| CN103271031A (en) * | 2013-05-16 | 2013-09-04 | 青岛奥迪斯生物科技有限公司 | Sterilization composition containing cyanoacrylate bactericide and metalaxyl-M |
| CN103734162A (en) * | 2014-02-18 | 2014-04-23 | 陕西上格之路生物科学有限公司 | Pyraclostrobin microcapsule suspending agent |
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| CN1279817C (en) * | 2004-02-18 | 2006-10-18 | 江苏省农药研究所有限公司 | 2-cyano-3-amino-3-ethyl phenylacrylate used for prevention and control of plant disease and elimination of pests |
| DK1876889T3 (en) * | 2005-04-25 | 2011-03-14 | Syngenta Participations Ag | Fungicidal aqueous compositions for the treatment of seeds |
| UA115126C2 (en) * | 2011-07-12 | 2017-09-25 | ДАУ АГРОСАЙЄНСІЗ ЕлЕлСі | Pesticidal compositions and processes related thereto |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102696645A (en) * | 2012-05-09 | 2012-10-03 | 广东中迅农科股份有限公司 | Pesticide composition containing pyraclostrobin and metalaxyl |
| CN102715156A (en) * | 2012-06-29 | 2012-10-10 | 陕西上格之路生物科学有限公司 | Sterilization composition containing js399-19 |
| CN103271031A (en) * | 2013-05-16 | 2013-09-04 | 青岛奥迪斯生物科技有限公司 | Sterilization composition containing cyanoacrylate bactericide and metalaxyl-M |
| CN103734162A (en) * | 2014-02-18 | 2014-04-23 | 陕西上格之路生物科学有限公司 | Pyraclostrobin microcapsule suspending agent |
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| CN103975935A (en) | 2014-08-13 |
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