CN108812661B

CN108812661B - Application of composition containing flumetralin and triazole bactericide in crop tip control and bud inhibition

Info

Publication number: CN108812661B
Application number: CN201810987917.3A
Authority: CN
Inventors: 郑敬敏; 邢大龙; 马强; 周大伟; 冯建雄; 张仙
Original assignee: Shaanxi Sunger Road Bio Science Co Ltd
Current assignee: Shaanxi Sunger Road Bio Science Co Ltd
Priority date: 2018-08-28
Filing date: 2018-08-28
Publication date: 2021-03-23
Anticipated expiration: 2038-08-28
Also published as: CN108812661A

Abstract

The invention discloses an application of a composition containing flumetralin and triazole bactericide in crop tip control and bud inhibition, wherein the composition comprises one of a first active ingredient flumetralin, a second active ingredient triazole bactericide tebuconazole, hexaconazole, propiconazole and epoxiconazole and an auxiliary agent, the weight ratio of the first active ingredient to the second active ingredient is 1: 80-60: 1, and the sum of the contents is 1% -60% of the total weight of the composition. The composition can be prepared into agriculturally allowable wettable powder, water dispersible granules, suspending agents, suspoemulsions, aqueous emulsions, microemulsions, microcapsule suspending agents, microcapsule suspension-suspending agents, dispersible oil suspending agents and dry suspending agents. The invention has reasonable components and good tip-controlling and bud-inhibiting effects on crops, and the tip-controlling and bud-inhibiting effects are not the simple superposition of the activities of all the components, thus having obvious synergistic effect compared with the prior single preparation.

Description

Application of composition containing flumetralin and triazole bactericide in crop tip control and bud inhibition

Technical Field

The invention relates to an application of a composition containing flumetralin and triazole bactericide in crop tip control and bud inhibition, and belongs to the technical field of pesticide application.

Background

Flumetraline, named prime in English, is also called as the bud-suppressing allergy, dinitroaniline compound. The flumetralin is a contact and local systemic plant growth retardant, is quickly absorbed by plants, has quick action, mainly influences the function of an enzyme system in plants and increases the contents of chlorophyll and protein. Inhibit the growth of tobacco lateral buds, can take effect without rain 2 hours after application and has certain effect on preventing mosaic disease.

The triazole bactericide of the present invention includes tebuconazole, hexaconazole, propiconazole and epoxiconazole.

Tebuconazole, british name tebuconazole, chemical name: (RS) -1-p-chlorophenyl-4, 4-dimethyl-3 (1H-1, 2, 4-triazol-1-ylmethyl) pentanol. Tebuconazole is a broad-spectrum triazole bactericide, has low dosage, can be applied to seed treatment of wheat, has the same effect on various pathogens carried by seeds whether being adsorbed on the epidermis or in the seeds, and is particularly suitable for preventing and treating smut.

Hexaconazole, english name hexaconazole, chemical name: (RS) -2- (2, 4-dichlorophenyl) -1- (1H-1, 2, 4-triazol-1-yl) -hex-2-ol. Hexaconazole belongs to triazole bactericides and sterol demethylation inhibitors, has broad-spectrum protection and treatment effects on fungi, particularly diseases caused by basidiomycota and ascomycota, destroys and prevents the biosynthesis of ergosterol which is an important component of cell membranes of germs, and causes the cell membranes to be incapable of forming so as to cause the germs to die. Has systemic, protective and therapeutic activities.

Propiconazole, known in the english name propiconazol and known in the chemical name 1- [2- (2, 4-dichlorophenyl) -4-propyl-1, 3-dioxolan-alpha-methyl ] -1-hydro-1, 2, 4-triazole. Propiconazole is a systemic triazole fungicide with protection and treatment effects, can be absorbed by roots, stems and leaves, can be quickly conducted upwards in plant bodies, and has a good control effect on diseases caused by ascomycetes, basidiomycetes and imperfect fungi, particularly wheat take-all, powdery mildew, rust disease, root rot, rice bakanae disease and sigatoka.

Epoxiconazole, having the english name epoxyconazole and the chemical name: (2RS, 3SR) -3- (2-chlorophenyl) -2- (4-fluorophenyl) -2- [ (1H1, 2, 4-triazol-1-yl) methyl ] oxirane. Epoxiconazole is a systemic triazole fungicide, inhibits the synthesis of ergosterol of pathogenic bacteria, and inhibits the formation of cell walls of the pathogenic bacteria, and epoxiconazole molecules have strong affinity to a fungal enzyme (14-dencthylase) and can effectively inhibit pathogenic fungi. Epoxiconazole can improve the activity of the valbutinase of crops, cause the contraction of a fungal sucker, inhibit the invasion of pathogenic bacteria and have good control effect on diseases such as leaf spot, powdery mildew, rust disease, anthracnose, white rot and the like.

The applicant finds that the compound of the flumetralin with different action mechanisms and one of triazole bactericides of tebuconazole, hexaconazole, propiconazole and epoxiconazole has the following advantages and beneficial effects: by using a compound scheme, the activity of controlling tips and inhibiting buds is improved, and the synergistic effect is obvious; the yield of the crops is improved, and the crops are safe; the dosage and the frequency of the medicine are reduced, and the prevention and treatment cost is reduced.

Disclosure of Invention

The invention aims to provide application of a composition containing flumetralin and triazole bactericide in controlling tips and inhibiting buds of crops.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the application of the composition containing flumetralin and triazole fungicide in controlling tip and inhibiting bud of crops is characterized in that,

(1) a first active ingredient: flunomide;

(2) the second active ingredient: one of triazole bactericides of tebuconazole, hexaconazole, propiconazole and epoxiconazole;

the weight ratio of the first active ingredient to the second active ingredient is 1: 80-60: 1, preferably 1: 60-40: 1, and the sum of the contents is 1-60% of the total weight of the composition.

The application of the composition containing the flumetralin and the triazole fungicide in controlling the shoots and inhibiting the buds of crops can be prepared into wettable powder, water dispersible granules, suspending agents, suspoemulsions, aqueous emulsions, microemulsions, microcapsule suspending agents, microcapsule suspension-suspending agents, dispersible oil suspending agents and dry suspending agents according to the method known by the technical field.

For wettable powders, the auxiliaries which can be used are: dispersing agents such as one or more of polycarboxylate, lignosulfonate, polyoxyethylene polyoxypropylene ether block copolymer, alkyl naphthalene formaldehyde condensate sulfonate, alkylphenol polyoxyethylene ether phosphate, fatty alcohol polyoxyethylene ether phosphate, alkylphenol polyoxyethylene ether sulfonate and the like; wetting agents such as one or more of alkyl sulfates, alkyl sulfonates, alkyl naphthalene sulfonates, and the like; the filler is one or more of ammonium sulfate, urea, sucrose, glucose, diatomite, kaolin, white carbon black, light calcium carbonate, talcum powder, attapulgite, pottery clay and the like.

For water dispersible granules, the following additives can be used: dispersants such as one or more of polycarboxylates (TERSPERSE 2700, T36, GY-D06, etc.), lignosulfonates, alkylnaphthalene sulfonates, and the like; wetting agents such as one or more of alkyl sulfates, alkyl sulfonates, naphthalene sulfonates, and the like; disintegrating agent such as one or more of ammonium sulfate, sodium sulfate, polyvinylpyrrolidone, starch and its derivatives, bentonite, etc.; binder such as one or more of starch, glucose, polyvinyl alcohol, polyethylene glycol, sodium carboxymethylcellulose, sucrose, etc.; the filler is one or more of diatomite, kaolin, white carbon black, light calcium carbonate, talcum powder, attapulgite, pottery clay and the like.

For the suspending agents, usable are: dispersing agents such as one or more of polycarboxylate, lignosulfonate, alkylnaphthalene formaldehyde condensate sulfonate, alkylphenol polyoxyethylene ether phosphate, alkylphenol polyoxyethylene ether sulfonate, phenethyl phenol polyoxyethylene ether phosphate, alkyl polyoxyethylene ether sulfonate, polyoxyethylene polyoxypropylene ether block copolymer, nekal, dodecyl polyoxyethylene ether phosphate, etc.; wetting agents such as one or more of alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, phenethylphenol polyoxyethylene ether phosphate ester, alkylsulfate, alkylsulfonate, alkylnaphthalenesulfonate, alkylphenol formaldehyde resin polyoxyethylene ether, tristyrylphenol polyoxypropylene polyoxyethylene block polymer, and the like; thickening agents such as one or more of xanthan gum, polyvinyl alcohol, bentonite, magnesium aluminum silicate, carboxymethyl cellulose, carboxyethyl cellulose, methyl cellulose, and the like; preservatives such as one or more of formaldehyde, benzoic acid, sodium benzoate, potassium sorbate, isothiazolinone, and the like; defoaming agents such as one or more of silicone oil, silicone compounds, C10-20 saturated fatty acid compounds, C8-10 fatty alcohols, hexanol, butanol, octanol, etc.; antifreeze agents such as one or more of ethylene glycol, propylene glycol, glycerol, polyethylene glycol, sorbitol, urea, inorganic salts, etc.; the water is deionized water.

For suspoemulsions, the auxiliaries which can be used are: emulsifier such as calcium dodecylbenzene sulfonate (Nongru 500 #), Nongru 700#, Nongru 2201, span-60 #, emulsifier T-60 (common name: sorbitan monostearate polyoxyethylene ether), TX-10 (common name: octylphenol polyoxyethylene (10) ether), Nongru 1601#, Nongru 600# and Nongru 400 #; a dispersant such as one or more of polycarboxylate, lignosulfonate, alkylnaphthalene sulfonate; solvent such as one or more of dimethyl phthalate, dibutyl phthalate, ethyl acetate and methyl benzoate; defoaming agents such as silicone oil, silicone compounds, C10-20 saturated fatty acid compounds, C8-10 fatty alcohols, hexanol, butanol, octanol; thickening agent such as one or more of white carbon black, polyvinyl alcohol, bentonite, and magnesium aluminum silicate; antifreeze agent such as one or more of ethylene glycol, propylene glycol, glycerol, urea, inorganic salts such as sodium chloride; the water is deionized water.

For aqueous emulsions, the auxiliaries which can be used are: emulsifying agent such as nonylphenol polyoxyethylene (EO = 10) ether phosphate, tristyrylphenol polyoxyethylene ether phosphate, Nongru No. 700 (alkylphenol formaldehyde resin polyoxyethylene ether), Nongru No. 2201, span-60 (sorbitan stearate), Tween-60 (polyoxyethylene sorbitan stearate), TX-10 (octylphenol polyoxyethylene (10) ether), Nongru 1601 (tristyrylphenol polyoxypropylene polyoxyethylene block polymer), Nongru No. 600, Nongru No. 400, etc.; solvents such as one or more of xylene, toluene, cyclohexanone, mineral spirits (trade names: S-150, S-180, S-200), etc.; one or more stabilizers such as triphenyl phosphite, epichlorohydrin, epoxidized soybean oil, etc.; one or more of antifreeze such as ethylene glycol, propylene glycol, glycerol, urea, inorganic salts such as sodium chloride, etc.; thickening agents such as one or more of xanthan gum, polyvinyl alcohol, bentonite, magnesium aluminum silicate, and the like; the antiseptic is one or more of formaldehyde, benzoic acid, sodium benzoate, etc., and the water is deionized water.

For microemulsions, the auxiliaries which can be used are: emulsifier such as one or more of Nongru 500# (calcium dodecylbenzenesulfonate), Nongru 700#, Nongru 2201, span-60 #, Tween 60- #, TX-10, Nongru 1601 (phenylethylphenol polyoxyethylene polyoxypropylene ether), Nongru 600#, Nongru 400#, etc.; auxiliary emulsifier such as one or more of methanol, isopropanol, n-butanol, and ethanol; solvents such as one or more of cyclohexanone, N-methylpyrrolidone, xylene, toluene, mineral spirits (trade names: S-150, S-180, S-200), etc.; one or more of stabilizers such as triphenyl phosphite, epichlorohydrin, and the like; the water is deionized water.

For suspension of microcapsules, the auxiliaries which can be used are: high molecular capsule wall material such as one or more of polyfunctional acyl halide polyamine, gelatin, acacia, modified milk protein, and sodium alginate; dispersing agent such as fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene formaldehyde condensate sulfate, and alkylbenzene sulfonate; solvent such as one or more of fatty acid ester, oleum Lini, and methyl oleate; emulsifiers such as one or more of benzyl dimethyl phenol polyoxyethylene ether, phenethyl phenol polyoxyethylene polypropylene ether, and ethylene oxide-propylene oxide block copolymer; pH regulator such as sodium hydroxide and one or more of hydrochloric acid, citric acid, and sorbic acid; defoaming agents such as one or more of C8-10 fatty alcohols, amides, silicone defoamers, hexanols, butanols, octanols; the water is deionized water.

For suspension-suspension formulations of microcapsules, the auxiliaries that can be used are: disintegrating agent such as one or more of bentonite, urea, ammonium sulfate, polyvinylpyrrolidone, glucose, and sodium bicarbonate; preservatives such as one or more of formaldehyde, benzoic acid, sodium benzoate, potassium sorbate, isothiazolinone, and the like; emulsifier such as fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ether, calcium dodecylbenzene sulfonate, alkylphenol polyoxyethylene ether, styrylphenol polyoxyethylene ether, castor oil polyoxyethylene ether, sorbitan monostearate polyoxyethylene ether, fatty acid polyoxyethylene ether phosphate, etc.; dispersing agents such as one or more of polycarboxylates, lignosulfonates, alkylphenol polyoxyethylene ether formaldehyde condensate Sulfates (SOPA), naphthalene and alkylnaphthalene formaldehyde condensate sulfonates, EO-PO block polyethers, alkylphenol polyoxyethylene ether phosphates, alkylphenol polyoxyethylene ethers, fatty acid polyoxyethylene esters, fatty amine polyoxyethylene ethers, glycerol fatty acid ester polyoxyethylene ethers, and the like; wetting agents such as one or more of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, nekal BX, wetting penetrant F, naphthalene sulfonate formaldehyde condensate and the like; antifreeze agents such as one or more of urea, ethylene glycol, propylene glycol, glycerol, etc.; thickening agents such as one or more of xanthan gum, carboxymethyl cellulose, carboxyethyl cellulose, methyl cellulose, magnesium aluminum silicate, polyvinyl alcohol, and the like; the defoaming agent is one or more of silicone oil, silicone compound, C10-20 saturated fatty acid compound, C8-10 fatty alcohol, ester ether, etc.

For dispersible oil suspensions, the adjuvants that can be used are: dispersing agent such as one or more of polycarboxylate, lignosulfonate, alkylnaphthalene sulfonate (dispersant NNO), TERSPERSE2020 (product of Huntsman corporation, U.S. alkyl naphthalene sulfonate); the emulsifier is selected from BY (polyoxyethylene castor oil) series emulsifier (BY-110, BY-125, BY-140), agricultural milk 700# (common name: alkylphenol formaldehyde resin polyoxyethylene ether), agricultural milk 2201, span-60 # (common name: sorbitan monostearate), Tween-60 # (common name: sorbitan monostearate polyoxyethylene ether), agricultural milk 1601# (common name: phenethylphenol polyoxyethylene polyoxypropylene ether), and TERSPERSE4894 (produced BY Henshimei corporation, USA); wetting agents such as one or more of alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, alkylphenol polyoxyethylene ether phosphate, phenethylphenol polyoxyethylene ether phosphate, alkyl sulfate, alkyl sulfonate, naphthalene sulfonate, TERSPERSE2500 (available from henseme, usa); thickening agent such as one or more of white carbon black, polyvinyl alcohol, bentonite, and magnesium aluminum silicate; antifreeze agents such as one or more of ethylene glycol, propylene glycol, glycerol, urea, inorganic salts such as sodium chloride; dispersing medium such as one or more of soybean oil, oleum Rapae, wheat oil, methyl oleate, diesel oil, engine oil, and mineral oil.

For dry suspending agents, the auxiliaries which can be used are: dispersing agent such as one or more of sodium dodecyl sulfate, polycarboxylate, acrylic acid polyoxyethylene salt, dioctyl sodium sulfosuccinate, secondary alkyl sodium sulfate, sodium dodecyl benzene sulfonate, fatty acid polyglycol ester, alkylamido taurate, hydroxypropyl cellulose sodium, fatty alcohol polyoxyethylene ether, sodium naphthalene sulfonate, alkyl naphthalene sulfonate, fatty acid sulfoalkyl ester, lignosulfonate, etc.; wetting agents such as one or more of sodium lauryl sulfate, sodium alkylnaphthalene sulfonate, sodium dodecylbenzene sulfonate, sodium lignin sulfonate, sodium alkylnaphthalene sulfonate formaldehyde condensate, alkylphenol polyoxyethylene ether, and the like; disintegrating agents such as one or more of phosphate, sulfate, carbonate, urea, sodium chloride, bentonite, polyvinylpyrrolidone, etc.; binder such as one or more of acacia, carboxymethyl cellulose, polyvinyl alcohol, polyethylene glycol, polyvinylpyrrolidone, etc.; defoaming agents such as one or more of silicone oil, silicone compounds, C10-20 saturated fatty acid compounds, C8-10 fatty alcohols, hexanol, butanol, octanol, etc.; the carrier is one or more of diatomite, light calcium carbonate, silica, kaolin, white carbon black, attapulgite and the like.

The invention has reasonable components, high bud inhibition activity, obvious tip control effect, obvious synergistic effect, low medicine cost and good safety to crops, can improve the crop yield and meets the safety requirement of pesticide preparations.

Detailed Description

In order to better illustrate the invention, the following examples are given to further illustrate the invention, wherein the percentages in the formulation are by weight.

Formulation example 1

Weighing 10% of flumetralin, 20% of hexaconazole, 3% of sodium alkylphenol polyoxyethylene ether sulfonate, 5% of fatty alcohol polyoxyethylene ether phosphate, 3% of sodium alkyl sulfonate and adding diatomite to 100% by weight. The raw materials are mixed, subjected to superfine jet milling and mixed to prepare the 30 percent fluazinam and hexaconazole wettable powder.

Formulation example 2

Weighing 5% of flumetralin, 25% of tebuconazole, 5% of sodium polycarboxylate, 4% of sodium lignin sulfonate and 3% of sodium dodecyl sulfate, and adding enough talcum powder to 100% by weight. The raw materials are mixed, subjected to superfine jet milling and mixed to prepare the 30 percent flunomide tebuconazole wettable powder.

Formulation example 3

Weighing 30% of flumetralin, 20% of tebuconazole, 3% of sodium alkyl naphthalene sulfonate, 6% of sodium naphthalene sulfonate, 4% of nekal BX (sodium dibutyl naphthalene sulfonate), 2% of sodium dodecyl sulfate and 3% of polyvinylpyrrolidone, and adding the pottery clay to 100% by weight. The raw materials are prepared into the 50 percent flumetralin tebuconazole water dispersible granule through the conventional method for preparing the water dispersible granule, namely mixing, ultramicro airflow crushing, mixing and granulating.

Formulation example 4

Weighing 20% of flumetralin, 20% of propiconazole, 5% of sodium lignosulfonate, 3% of sodium polycarboxylate, 3% of nekal BX (sodium dibutylnaphthalenesulfonate), 3% of sodium naphthalenesulfonate, 2% of sodium carboxymethylcellulose and light calcium carbonate to 100% by weight. The raw materials are processed by the conventional method for preparing the water dispersible granule, namely mixing, ultramicro airflow crushing, mixing and granulating to prepare the 40 percent flumetralin-propiconazole water dispersible granule.

Formulation example 5

Weighing 15% of flumetralin, 15% of propiconazole, 6% of alkyl polyoxyethylene ether sulfonate, 3% of polyoxyethylene polyoxypropylene block copolymer, 4% of phenethyl phenol polyoxyethylene ether phosphate, 3% of carboxymethyl fiber, 3% of isothiazolinone, 1.6% of benzoic acid, 2% of butanol and deionized water to 100% by weight. Mixing the above raw materials, high-speed shearing and dispersing for 30min, and sanding with sand mill to obtain particle diameter D₉₀And preparing 30 percent of flumetralin-propiconazole suspending agent after the particle size is less than 10 mu m.

Formulation example 6

Weighing 8% of flumetralin, 12% of epoxiconazole, 5% of sodium alkyl naphthalene formaldehyde condensate, 4% of triphenylethyl phenol polyoxypropylene polyoxyethylene block polymer, 5% of sodium alkyl sulfonate, 3% of bentonite, 3% of glycerol, 2% of benzoic acid, 2% of octanol and deionized water to 100% by weight. Mixing the above raw materials, high-speed shearing and dispersing for 30min, and sanding with sand mill to obtain particle diameter D₉₀And obtaining 20 percent of flumetralin-epoxiconazole suspending agent after the particle size is less than 10 mu m.

Formulation example 7

Weighing 12% of flumetralin, 12% of epoxiconazole, 6% of Nongru No. 700, 5% of dispersing agent NNO, 4% of sodium lignosulfonate, 3% of castor oil, 3% of methyl oleate, 2% of bentonite, 4% of propylene glycol, 2% of epoxy chloropropane, 1.5% of benzoic acid, 0.8% of octanol and deionized water to 100% by weight. The raw materials are uniformly mixed, are sheared and dispersed for 30min at a high speed, and are sanded by a sand mill to prepare the 24 percent flubendiamide-epoxiconazole suspending emulsion.

Formulation example 8

Weighing 10% of flumetralin, 5% of hexaconazole, 3% of sodium alkyl naphthalene sulfonate, 5% of methyl oleate, 3% of soybean oil, 4% of Nongru No. 600, 5% of Tween-60, 4% of alkylphenol polyoxyethylene ether phosphate, 2% of magnesium aluminum silicate, 2% of xanthan gum, 3% of glycerol, 4% of triphenyl phosphite, 2% of sodium benzoate, 2% of hexanol and deionized water to 100% by weight. The raw materials are uniformly mixed, are sheared and dispersed for 30min at a high speed, and are sanded by a sand mill to prepare the 15 percent flubendiamide hexaconazole suspending emulsion.

Formulation example 9

Weighing 15% of flumetralin, 10% of hexaconazole, 8% of span-60 #, 6% of agricultural emulsion 2201#, 2% of epichlorohydrin, 3% of urea, 2% of toluene, 0.7% of xanthan gum, 1.2% of sodium benzoate and deionized water to 100% by weight. The raw materials are mixed and emulsified at high speed in a shearing way to prepare the 25 percent aqueous emulsion of the flumetralin and hexaconazole.

Formulation example 10

Weighing 24% of flumetralin, 16% of tebuconazole, 3% of Nongru 1601, 6% of Nongru No. 700, 4% of Tween-60, 2% of propylene glycol, 4% of cyclohexanone, 5% of sodium benzoate, 0.5% of polyvinyl alcohol, 1% of benzoic acid and adding deionized water to 100% by weight. The raw materials are mixed and emulsified at high speed in a shearing way to prepare the 40 percent aqueous emulsion of flumetralin and tebuconazole.

Formulation example 11

Weighing 20% of flumetralin, 10% of tebuconazole, 3% of Nongru No. 700, 5% of Nongru 1601, 4% of Tween No. 60, 6% of N-methyl pyrrolidone, 5% of xylene, 3% of isopropanol and 5% of triphenyl phosphite, completely dissolving and uniformly mixing, adding deionized water to 100% by weight, and stirring to obtain the 30% flumetralin-tebuconazole microemulsion.

Formulation example 12

Weighing 10% of flumetralin, 14% of propiconazole, 6% of agricultural emulsion 2201, 3% of agricultural emulsion 600#, 3% of solvent oil S-150, 4% of toluene, 4% of n-butyl alcohol and 3% of epoxy chloropropane, completely dissolving and uniformly mixing, adding deionized water to 100% by weight, and stirring to obtain the 24% flumetralin-propiconazole microemulsion.

Formulation example 13

Weighing 6% of flumetralin, 12% of propiconazole, 6% of sodium alginate, 4% of sodium alkylphenol polyoxyethylene-formaldehyde condensate sulfate, 3% of linseed oil, 10% of phenethylphenol polyoxyethylene polypropylene ether, 5% of sodium hydroxide and citric acid, 1.5% of hexanol and adding deionized water to 100% by weight. Mixing the active ingredients, the high-molecular capsule wall material and the solvent into a uniform oil phase, adding the oil phase into the water phase solution, shearing, dispersing and curing to obtain the 18% flumetralin-propiconazole microcapsule suspending agent.

Formulation example 14

Weighing 16% of flumetralin, 8% of epoxiconazole, 4% of Arabic gum, 5% of sodium alkyl benzene sulfonate, 4% of linseed oil, 3% of benzyl dimethyl phenol polyoxyethylene ether, 6% of sodium hydroxide, hydrochloric acid and 2% of butanol, and adding deionized water to 100% by weight. Mixing the active ingredients, the high-molecular capsule wall material and the solvent into a uniform oil phase, adding the oil phase into the water phase solution, shearing, dispersing and curing to obtain the 24% flumetralin-epoxiconazole microcapsule suspending agent.

Formulation example 15

Weighing 10% of flumetralin, 5% of epoxiconazole, 8% of ammonium sulfate, 10% of sodium benzoate, 6% of castor oil polyoxyethylene ether, 7% of alkylphenol polyoxyethylene ether, 5% of fatty amine polyoxyethylene ether, 5% of glycerol, 2% of polyvinyl alcohol, 1.2% of butanol and deionized water for supplementing the balance. Adding ammonium sulfate and sodium benzoate into a reaction kettle with a variable frequency speed regulator, regulating the pH value of the solution to 7.5-8.5 by using an ammonium sulfate solution, then heating to 55-70 ℃, and reacting to obtain the stable urea-formaldehyde resin prepolymer. Dissolving a certain amount of triazole bactericide in a solvent, adding an emulsifier, uniformly stirring, adding water, and preparing an O/W type stable emulsion containing an emulsifying dispersant under high-shear homogenization. The urea-formaldehyde resin prepolymer is added into the emulsion, the pH value is adjusted, and polymerization reaction is carried out under the acid catalysis condition, so that oil phase substances are wrapped to form microcapsule particles. Slowly heating and curing, controlling the temperature at 45-55 ℃, curing for 1-1.5 h, and then adding a dispersing agent to prepare the triazole bactericide-containing microcapsule suspending agent; after the flunomide, water and other auxiliary agents are sheared uniformly in a reaction kettle, sanding is carried out in a sand mill, so that the particle size D90 of the suspending agent is below 5 mu m, and the suspending agent containing the flunomide can be prepared. The suspending agent containing the flumetralin and the microcapsule suspending agent containing the triazole fungicide are mixed and stirred uniformly according to the proportion to prepare the 15 percent flumetralin-epoxiconazole microcapsule suspending-suspending agent.

Formulation example 16

Weighing 5% of flumetralin, 10% of hexaconazole, 8% of glucose, 5% of formaldehyde, 7% of fatty alcohol-polyoxyethylene ether, 6% of fatty acid-polyoxyethylene ester, 4% of alkylphenol polyoxyethylene ether, 5% of glycerol, 3% of polyvinyl alcohol, 1% of octanol, and deionized water for supplementing the balance. The suspension-suspension formulation of 15% fluben-hexaconazole microcapsules was prepared according to the procedure of preparation example 15.

Formulation example 17

Weighing 10% of flumetralin, 15% of hexaconazole, 6% of sodium polycarboxylate, 6% of agricultural emulsion 700#, 5% of tween-60 #, 6% of agricultural emulsion 2201#, 5% of phenethyl phenol polyoxyethylene ether phosphate, 3% of white carbon black, 3% of magnesium aluminum silicate and methyl oleate to 100% by weight. The raw materials are mixed, sheared and dispersed for 30min at a high speed, and are sanded by a sand mill to prepare the 25 percent flubendiamide hexaconazole dispersible oil suspending agent.

Formulation example 18

Weighing 8% of flumetralin, 16% of tebuconazole, 5% of sodium alkyl naphthalene sulfonate, 8% of pesticide emulsion 2201, 5% of emulsifier BY-140, 4% of sodium alkyl sulfonate, 2% of magnesium aluminum silicate, 3% of urea and 100% of wheat oil in parts BY weight. The raw materials are mixed, sheared and dispersed for 30min at a high speed, and then are sanded by a sand mill to prepare the 24 percent fluvalinate tebuconazole dispersible oil suspending agent.

Formulation example 19

Weighing 12% of flumetralin, 12% of tebuconazole, 6% of fatty acid polyglycol ester, 3% of alkyl sodium naphthalene sulfonate formaldehyde condensate, 4% of carboxymethyl cellulose, 4% of polyethylene glycol and 2% of octanol, and adding attapulgite to 100% by weight. And (3) wet-grinding the slurry by using a sand mill to prepare suspension slurry, then carrying out spray drying granulation, and sieving granules after granulation to prepare the 24% flunomide-tebuconazole dry suspending agent.

Formulation example 20

Weighing 10% of flumetralin, 15% of hexaconazole, 5% of sodium hydroxypropyl cellulose, 4% of sodium alkyl naphthalene sulfonate, 4% of bentonite, 3% of polyvinyl alcohol, 3% of silicone oil and white carbon black to 100% by weight. And (3) wet-grinding the slurry by using a sand mill to prepare suspension slurry, then carrying out spray drying granulation, and sieving granules after granulation to prepare the 25% flunomide-hexaconazole dry suspension agent.

Biological example 1: and (5) performing citrus shoot control test.

Formulation examples formulation example 1(30% flunomide hexaconazole wettable powder), formulation example 3 (50% flunomide tebuconazole water dispersible granule), formulation example 5 (30% flunomide propiconazole suspension), formulation example 7 (24% flunomide epoxiconazole suspension) and formulation example 17 (25% flunomide hexaconazole dispersible oil suspension) were subjected to field tests on citrus shoot control effect in 2018, 5 months in ludwin prefecture, Guilin city, Yongfu county, Luoman town, Guangxi province.

The test field is planted with orange in the open air all year round, the tree age is 4 years old, the density is 100 plants/mu, and the average tip length of the orange is about 1.72 cm. The investigation method refers to the standard of citrus summer shoot control to carry out corresponding plant and shoot determination investigation. 3 plants in each treatment of the plot are all investigated, 6 summer shoots of each tree are investigated at fixed points for investigation and evidence collection after application, 18 summer shoots are investigated in each treatment, and the growth length of the summer shoots is compared for drug evaluation.

The drug effect calculation method comprises the following steps:

growth length of citrus summer shoots after drug addition-growth length of citrus summer shoots before drug addition

Inhibition (%) = (control zone post-drug tip length-treatment zone post-drug tip length) ÷ control zone post-drug tip length × 100

Fruit retention rate (%) = number of young fruits after medicine ÷ number of young fruits before medicine × 100

TABLE 1-1 Flumetralin and triazole bactericide compounded to control citrus summer shoot eruption test result

TABLE 1-2 composite control citrus summer shoot test results of fluazinam and triazole bactericide

TABLE 1-3 Compound pairing of Flumetralin and triazole fungicide orange fruit retention test results

From the data, the flumetralin single agent or the compound preparation thereof has certain inhibiting effect on the citrus summer shoots when the citrus summer shoots are about 1 cm. In addition, the citrus shoot-controlling effect of the compound pair of the flunomide and the triazole bactericide is obviously greater than that of a single agent of the flunomide or the triazole bactericide, and the synergistic effect is obvious.

Safety survey, observation during the test period, normal tender tips, mature leaves and fruits of each treated citrus, no phenomena of leaf rolling, leaf falling, fruit falling and the like, and safe and no phytotoxicity phenomenon in the test.

Biological example 2: and (4) mango tip control effect test.

Formulation example 11 (30% flumetralin tebuconazole microemulsion), formulation example 13 (18% flumetralin propiconazole microcapsule suspension), formulation example 15 (15% flumetralin epoxiconazole microcapsule suspension-suspension), formulation example 17 (25% flumetralin hexaconazole dispersible oil suspension), formulation example 19 (24% flumetralin tebuconazole dry suspension) were field tested in the third crop of mango young shoots at 6 months 2018 in the south of hainan saint.

Mango trees are planted in the test field all year round in the open air, the tree age is 12 years, the density is 45 plants/mu, and the average shoot length of the mango trees is about 0.5 cm. The investigation method refers to the third batch shoot control standard of mango to carry out corresponding strain and shoot determination investigation. 3 plants in each treatment of the plot are all investigated, 6 summer shoots of each tree are investigated at fixed points for investigation and evidence collection after application, 18 summer shoots are investigated in each treatment, and the growth length of the summer shoots is compared for drug evaluation.

The drug effect calculation method comprises the following steps:

growth length of summer tip after medicine-growth length of summer tip before medicine

TABLE 2 Flumetralin and triazole fungicide combinations for mango young shoot inhibition

The data show that the effect of the 5 preparation examples on mango young sprout inhibition is obviously higher than that of a single agent of fluazinam or triazole bactericide, and the compound of the triazole bactericide and the fluazinam has high sprout inhibition activity and obvious synergistic effect.

Safety survey, observation during the test period, and safety of all the test agents on mango growth without phytotoxicity.

The composition of the invention has good tip control effect on litchi and tobacco, and the inhibition rate and the fruit retention rate achieve obvious synergistic effect.

In conclusion, the composition adopts a compounding scheme of two active ingredients, the activity of the composition is not the simple superposition of the activities of all the ingredients, and compared with the existing single preparation, the composition has obvious bud inhibition effect and tip control effect, remarkable synergistic effect, reduced control cost, safety to crops and accordance with the safety requirement of pesticide preparations.

Claims

1. The application of the composition containing the flumetralin and the triazole bactericide in crop tip control and bud inhibition is characterized by comprising one of a first active ingredient flumetralin, a second active ingredient triazole bactericide tebuconazole, hexaconazole, propiconazole and epoxiconazole and an auxiliary agent, wherein the weight ratio of the first active ingredient to the second active ingredient is 1: 80-60: 1.

2. The application of the composition containing the flumetralin and the triazole fungicide to shoot control and bud inhibition of crops according to claim 1 is characterized in that the weight ratio of the first active ingredient to the second active ingredient is 1: 60-40: 1.

3. The application of the composition containing the flumetralin and the triazole fungicide to shoot and bud control of crops as claimed in claim 1 or 2, wherein the sum of the contents of the first active ingredient and the second active ingredient is 1% -60% of the total weight of the composition.

4. The application of the composition containing flumetralin and triazole fungicide in crop shoot control and bud inhibition according to claim 1, wherein the formulation of the composition is wettable powder, water dispersible granules, suspending agents, suspoemulsions, aqueous emulsions, microemulsions, microcapsule suspending agents, microcapsule suspension-suspending agents, dispersible oil suspending agents and dry suspending agents.

5. The application of the composition containing the flumetralin and the triazole fungicide to shoot control and bud inhibition of crops according to claim 1, wherein the crops comprise citrus, mango, litchi and tobacco.