CN101720766B - Insecticidal composition of tea saponin and pleocidin - Google Patents
Insecticidal composition of tea saponin and pleocidin Download PDFInfo
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- CN101720766B CN101720766B CN2009102142684A CN200910214268A CN101720766B CN 101720766 B CN101720766 B CN 101720766B CN 2009102142684 A CN2009102142684 A CN 2009102142684A CN 200910214268 A CN200910214268 A CN 200910214268A CN 101720766 B CN101720766 B CN 101720766B
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Abstract
The invention discloses an insecticidal composition of tea saponin and pleocidin, which comprises the following components by weight percentage: 0.10-50% of tea saponin, 0.01-30% of pleocidin and 20-95% of auxiliary agents. The invention also discloses various formulations of the insecticidal composition and a preparation method thereof. In the invention, the composition can be applied to the prevention and control of common pests in the agricultural production and provides a safe and efficient new variety of pesticides for the productions of export-oriented agriculture, green foods and pollution-free fruits and vegetables.
Description
Technical field
The present invention relates to a kind of agricultural insecticide, be specifically related to a kind of Pesticidal combination that contains Tea Saponin and pleocidin.
Background technology
Because long-term, a large amount of unreasonable uses of chemical pesticide, and because the intrinsic shortcoming of some medicament itself has caused insect generation " 3R " problem.Therefore, be object with the natural products, seek bioactivator, the research and development novel biopesticide enjoys attention at home and abroad, and wherein, botanical pesticide is the most noticeable one type.Being mixed of the exploitation of botanical pesticide, botanical pesticide and chemical pesticide, botanical pesticide and being mixed of microbial pesticide all are the forward position and the focus of pesticide research in the world.
Tea Saponin (Tea saponin) is the vegetable insecticide that from the tea cake after the seed of plant of theaceae such as tea seed cake, the tea-seed oil expression, extracts, and belongs to pentacyclic triterpenoid, and its pure article are colorless prismatic crystal, have hygroscopicity, and bitter is pungent, and molecular formula is C
57H
90O
26, molecular weight is 1191.31,223～224 ℃ of fusing points, and soluble in water and organic solvents such as alcohols, organic acid are insoluble to organic solvents such as ether, benzinum, benzene.
Tea Saponin is a kind of nonionic surface active agent, has that stronger exhibition is puted forth effort, emulsifying ability, dispersion force, wetting power and a foaming power, and cold-blooded animal is had high poison, and people and animals are waited the nontoxic or low toxicity of homoiothermy animal.This compound has desinsection, sterilization, kills mite and reduces capillary multiple function, has different mechanism of action with chemical pesticide.But Tea Saponin has action of contace poison and stomach poison function to damage by disease and insect, but Tea Saponin quick-acting is poor, application dosage is big, and result of use is bad separately.
It is a kind of macrolides Nuisanceless high-efficient biological insecticides that in thorn sugared many born of the same parents bacterium (Saccharopolyspora spinosa) zymotic fluid, extract that pleocidin has another name called multiple killing teichomycin (Spinosad).The mode of action of pleocidin is novel, can sustained activation target insect acetylcholine nicotine receptor, but its binding site is different from nicotine and Imidacloprid, and pleocidin also can influence the GABA acceptor.These compounds can cause that target plant-feed insect such as caterpillar, leaf miner, thrips and leaf-feeding beetle are dead rapidly.Pleocidin be a kind of have tag and the novel microbial insecticide of the toxicity of ingesting, have to the insect broad-spectrum high efficacy, to people, non-target animal and very safe, the biodegradable excellent characteristics of environment.
But do not see the technology report about Tea Saponin and pleocidin combination operation technique scheme at present.
Summary of the invention
The objective of the invention is to make full use of the unique effect mechanism of abundant plant resources and botanical pesticide, the Pesticidal combination of a kind of Tea Saponin and pleocidin be provided, it has efficiently, wide spectrum, be difficult for developing immunity to drugs, superiority such as low toxicity.
The present invention provides the various formulations and the preparation method of the Pesticidal combination of said Tea Saponin and pleocidin simultaneously.
The object of the invention is achieved through following technical proposals:
A kind of Pesticidal combination that contains Tea Saponin and pleocidin is provided, comprises each component of following weight percentage:
Tea Saponin: 0.10～50%;
Pleocidin: 0.01～30%;
Auxiliary agent 20～95%.
Preferably, the said Pesticidal combination that contains Tea Saponin and pleocidin comprises each component of following weight percentage:
Tea Saponin: 0.5～5.0%;
Pleocidin: 0.5～5.0%;
Auxiliary agent 90～95%.
Said Tea Saponin can be the mixture of a kind of or arbitrary proportion of the preparation that contains Tea Saponin of the pure article of crude extract, Tea Saponin of Tea Saponin or form of ownership, if use mixture, total usage amount can not account for the maximum of preparation deal greater than Tea Saponin.
Said pleocidin can be pure article of pleocidin or preparation, and the ISO adopted name is spinosad.
Said Pesticidal combination can be missible oil, wetting powder, microemulsion, suspending agent, suspended emulsion or aqueous emulsion, and the preparation method is the method that adopts usually during corresponding formulation is produced.
Described auxiliary agent is confirmed according to required formulation is different, and is specific as follows:
(1) when preparation missible oil, its auxiliary agent is
1) the surfactant comprise preparation by weight 5～70%; Surfactant is the sodium alkyl sulfate or in the alkyl benzene sulfonate one or more of polyethenoxy ether class, the anionic of nonionic; Use when multiple, total usage amount can not be greater than the maximum of surfactant comprise preparation deal;
2) solvent accounts for preparation by weight 25～80%; Solvent is various aromatic hydrocarbons, aliphatic hydrocarbon, ketone, ethers; In available benzene,toluene,xylene, naphthalane, gasoline, kerosene, machine oil, MEK, propylene glycol, butyl glycol ether or the benzinum one or more; Use when multiple, total usage amount can not account for the maximum of preparation deal greater than solvent;
3) cosolvent accounts for preparation by weight 5～20%, and cosolvent is one or more in methyl alcohol, isoamyl alcohol, phenol, ethyl acetate or the dimethyl sulfoxide (DMSO), uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than cosolvent;
4) pH value conditioning agent accounts for preparation by weight 0.5～1%, and pH value conditioning agent is one or more in sodium hydroxide, ammonium hydroxide, acetic acid or the hydrochloric acid, uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than pH value conditioning agent;
5) synergist accounts for preparation by weight 0.5～25%, and synergist is one or more in Butacide, sulfoxide, alkyl carbonate, chlorination fat or the formaldehyde, uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than synergist;
6) anti-photodissociation agent accounts for preparation by weight 0.5～15%, and anti-photodissociation agent is one or more in p-aminobenzoic acid, castor oil or the Angelica oil, uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than anti-photodissociation agent;
7) the stabilizer comprises preparation by weight 0.5～15%, and stabilizing agent is one or more in epoxidized soybean oil, the epoxidized linseed, uses when multiple, and total usage amount can not be greater than the maximum of stabilizer comprises preparation deal;
8) penetrating agent accounts for preparation by weight 0.5～2%, and penetrating agent is one or more in Laurocapram, JFC-2, the maleic acid di-sec-octyl sodium sulfonate, uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than penetrating agent;
(2) when the preparation wetting powder, its auxiliary agent is:
1) wetting agent accounts for preparation by weight 5～35%; Wetting agent is natural products wetting agent and anionic wetting agent; Available spaonin powder, soapberry powder, silkworm excrement, bay alcohol radical sodium sulphate, neopelex, washing powder, draw back in the powder one or more; Use when multiple, total usage amount can not account for the maximum of preparation deal greater than wetting agent;
2) dispersant accounts for preparation by weight 5～30%; Dispersant is industrial by-products and anionic dispersing agent; In available lignosulfite, lignin and derivative sulfonate, naphthalene and alkylbenzene formaldehyde condensation products sulfonate, the alkylsulfonate one or more; Use when multiple, total usage amount can not account for the maximum of preparation deal greater than dispersant;
3) filler accounts for preparation by weight 20～90%, and filler is mineral type carrier or synthetic vectors, and one or more in available kaolin, diatomite, the white carbon use when multiple, and total usage amount can not account for the maximum of preparation deal greater than filler;
(3) when the preparation microemulsion, its auxiliary agent is:
1) solvent accounts for preparation by weight 10～90%, and solvent is one or more in alcohols, ketone, ester class and the aromatic hydrocarbon, uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than solvent;
2) emulsifier accounts for preparation by weight 10～40%; Emulsifier is one or more in No. 300, alkyl benzene sulfonate calcium salt, alkyl benzene sulphonate magnesium salts, alkyl benzene sulphonate aluminium salt, alkyl benzene sulphonate sodium salt, alkyl benzene sulphonate barium salt, C8～C20 alkylsurfuric acid sodium salt, styrene polyoxyethylene ether ammonium sulfate salt, benzylbiphenyl phenol polyethenoxy ether, phenethyl phenol polyethenoxy (N=15～30) ether, phenethyl phenol polyethenoxy polyoxypropylene, NPE, APES first condensation product, xenol APEO, homemade Nongru-700 number, the homemade farming breast; Use when multiple, total usage amount can not account for the maximum of preparation deal greater than emulsifier;
3) the stabilizer comprises preparation by weight 0.5～15%; Stabilizing agent is a 3-chloro-1; In 2-expoxy propane, butyl glycidyl ether, phenyl glycidyl ether, cresyl glycidyl ether, polyvinyl one glycol diglycidyl ether, the sodium sorbate one or more; Use when multiple, total usage amount can not be greater than the maximum of stabilizer comprises preparation deal;
4) antifreezing agent accounts for preparation by weight 0.5～10%, and antifreezing agent is one or more in ethylene glycol, glycerine, propane diols, polyethylene glycol, the sorb sodium alkoxide, uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than antifreezing agent;
(4) when the preparation suspending agent, its auxiliary agent is:
1) the surfactant comprise preparation by weight 5～70%; Surfactant is the polyethenoxy ether class of nonionic; Or the sodium alkyl sulfate of anionic or in the alkyl benzene sulfonate one or more; Use when multiple, total usage amount can not be greater than the maximum of surfactant comprise preparation deal;
2) solvent accounts for preparation by weight 25～80%; Solvent is various aromatic hydrocarbons, aliphatic hydrocarbon, ketone, ethers; In available benzene,toluene,xylene, naphthalane, gasoline, kerosene, machine oil, MEK, propylene glycol, butyl glycol ether, the benzinum one or more; Use when multiple, total usage amount can not account for the maximum of preparation deal greater than solvent;
3) cosolvent accounts for preparation by weight 5～20%, and cosolvent is one or more in methyl alcohol, isoamyl alcohol, phenol, ethyl acetate, the dimethyl sulfoxide (DMSO), uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than cosolvent;
4) pH value conditioning agent accounts for preparation by weight 0.5～1%, and pH value conditioning agent is one or more in sodium hydroxide, ammonium hydroxide, acetic acid, the hydrochloric acid, uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than pH value conditioning agent;
5) synergist accounts for preparation by weight 0.5～25%, and synergist is one or more in Butacide, sulfoxide, alkyl carbonate, chlorination fat, the formaldehyde, uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than synergist;
6) anti-photodissociation agent accounts for preparation by weight 0.5～15%, and anti-photodissociation agent is one or more in p-aminobenzoic acid, castor oil, the Angelica oil, uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than anti-photodissociation agent;
7) the stabilizer comprises preparation by weight 0.5～15%, and stabilizing agent is one or more in epoxidized soybean oil, the epoxidized linseed, uses when multiple, and total usage amount can not be greater than the maximum of stabilizer comprises preparation deal;
8) thickener accounts for preparation by weight 0.1～10%, and thickener is one or more in silica, the bentonite, uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than thickener;
(5) when the preparation suspended emulsion, its auxiliary agent is:
1) the surfactant comprise preparation by weight 5～70%; Surfactant is the polyethenoxy ether class of nonionic; Or the sodium alkyl sulfate of anionic or in the alkyl benzene sulfonate one or more; Use when multiple, total usage amount can not be greater than the maximum of surfactant comprise preparation deal;
2) solvent accounts for preparation by weight 25～80%; Solvent is various aromatic hydrocarbons, aliphatic hydrocarbon, ketone, ethers; In available benzene,toluene,xylene, naphthalane, gasoline, kerosene, machine oil, MEK, propylene glycol, butyl glycol ether, the benzinum one or more; Use when multiple, total usage amount can not account for the maximum of preparation deal greater than solvent;
3) cosolvent accounts for preparation by weight 5～20%, and cosolvent is one or more in methyl alcohol, isoamyl alcohol, phenol, ethyl acetate, the dimethyl sulfoxide (DMSO), uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than cosolvent;
4) pH value conditioning agent accounts for preparation by weight 0.5～1%, and pH value conditioning agent is one or more in sodium hydroxide, ammonium hydroxide, acetic acid, the hydrochloric acid, uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than pH value conditioning agent;
5) synergist accounts for preparation by weight 0.5～25%, and synergist is one or more in Butacide, sulfoxide, alkyl carbonate, chlorination fat, the formaldehyde, uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than synergist;
6) anti-photodissociation agent accounts for preparation by weight 0.5～15%, and anti-photodissociation agent is one or more in p-aminobenzoic acid, castor oil, the Angelica oil, uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than anti-photodissociation agent;
7) the stabilizer comprises preparation by weight 0.5～15%, and stabilizing agent is one or more in epoxidized soybean oil, the epoxidized linseed, uses when multiple, and total usage amount can not be greater than the maximum of stabilizer comprises preparation deal;
8) thickener accounts for preparation by weight 0.1～10%, and thickener is one or more in silica, the bentonite, uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than thickener;
(6) when the preparation aqueous emulsion, its auxiliary agent is:
1) solvent accounts for preparation by weight 10～90%, and solvent is one or more in alcohols, ketone, ester class and the aromatic hydrocarbon, uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than solvent;
2) emulsifier accounts for preparation by weight 10～30%; Emulsifier is alkyl benzene sulfonate calcium salt, alkyl benzene sulphonate magnesium salts, alkyl benzene sulphonate aluminium salt, alkyl benzene sulphonate sodium salt, alkyl benzene sulphonate barium salt, C8～C20 alkylsurfuric acid sodium salt, styrene polyoxyethylene ether ammonium sulfate salt, benzylbiphenyl phenol polyethenoxy ether, phenethyl phenol polyethenoxy (N=15～30) ether, phenethyl phenol polyethenoxy polyoxypropylene, NPE, APES first condensation product, xenol APEO, homemade Nongru-700 number, in No. 300 one or more; Use when multiple, total usage amount can not account for the maximum of preparation deal greater than emulsifier;
3) the stabilizer comprises preparation by weight 0.5～15%; Stabilizing agent is a 3-chloro-1; In 2-expoxy propane, butyl glycidyl ether, phenyl glycidyl ether, cresyl glycidyl ether, polyvinyl one glycol diglycidyl ether, the sodium sorbate one or more; Use when multiple, total usage amount can not be greater than the maximum of stabilizer comprises preparation deal;
4) antifreezing agent accounts for preparation by weight 0.5～10%, and antifreezing agent is one or more in ethylene glycol, glycerine, propane diols, polyethylene glycol, the sorb sodium alkoxide, uses when multiple, and total usage amount can not account for the maximum of preparation deal greater than antifreezing agent;
The said Pesticidal combination that contains Tea Saponin and pleocidin; The method that each component is mixed with into missible oil is: by proportioning Tea Saponin and the former medicine of pleocidin are dissolved in the solvent; Other auxiliary agents such as emulsifier are joined in Tea Saponin and the former drug solns of pleocidin; Stir, put at last and give intense mixing in the homogenizer and homogenize promptly gets.
The said Pesticidal combination that contains Tea Saponin and pleocidin; The method that each component is mixed with into wetting powder is: by proportioning Tea Saponin and the former medicine of pleocidin are carried out joining in the blender behind the comminution by gas stream; In blender, add auxiliary agent respectively by proportioning, stir promptly and get.
The said Pesticidal combination that contains Tea Saponin and pleocidin; The method that each component is mixed with into microemulsion is: pleocidin is dissolved in the solvent; Tea Saponin is soluble in water, emulsifier is joined in the pleocidin solution, stir; Add cosolvent, the Tea Saponin aqueous solution then, put at last and give intense mixing in the homogenizer and homogenize promptly gets.
The method that the said Pesticidal combination that contains Tea Saponin and pleocidin, each component are mixed with into suspending agent is: by proportioning the former medicine of Tea Saponin and pleocidin is added wetting dispersing agent, thickener, stabilizing agent, antifoaming agent, antifreezing agent, pH regulator agent and other auxiliary agent and deionized water one and arise from the ball mill ball milling and process suspending agent and promptly get.
The said Pesticidal combination that contains Tea Saponin and pleocidin; The method that each component is mixed with into suspended emulsion is: by proportioning Tea Saponin and the former medicine of pleocidin are pulverized; Add various auxiliary agents and water except that thickener again; Get into together to mix in the high-shear emulsion machine and add thickener simultaneously and further mix,, promptly get after microscopy is qualified after sand mill grinds.
The said Pesticidal combination that contains Tea Saponin and pleocidin; The method that each component is mixed with into aqueous emulsion is: by ratio requirement Tea Saponin and the former medicine of pleocidin are dissolved in the solvent; Emulsifier, cosolvent are joined in Tea Saponin and the former drug solns of pleocidin; Stir, slowly add then in the entry, fully stirring promptly gets.
The Pesticidal combination of said Tea Saponin and pleocidin can be applicable to prepare the preparation of control beet armyworm, diamond-back moth, prodenia litura, radish aphid or rice fulgorid.
The invention has the beneficial effects as follows:
The present invention has changed Tea Saponin technological prejudice as just wetting agent and synergist in the insecticidal preparation that is mixed; In the insecticides that provides, contain two kinds of active ingredients of Tea Saponin and pleocidin, and these two kinds of active ingredients are biopesticide; Mechanism of action effectively combines; Especially Tea Saponin is brought into play significant synergistic effect to pleocidin when self has insecticidal action, and the generation of the antagonism property of medicine has retarding action; The present composition can be used for the control of common insect in the agricultural production, for the production of agricultural, pollution-free food and nuisanceless fruits and vegetables provides safe and efficient pesticide new variety.
The present invention can prepare various formulation, and the preparation method is simple, has good application value.
Embodiment
Below in conjunction with specific embodiment the present invention is further described, can not gives unnecessary details one by one in an embodiment with the simple replacement of analog assistant, but therefore not limit scope of the present invention.Virulence test and field efficiency test are tested conventional method with reference to this area.
Said Tea Saponin is the pure article of crude extract, Tea Saponin of Tea Saponin or the preparation that contains Tea Saponin, extracts for commercial or employing conventional method to obtain; Said pleocidin is commercial.The preparation of embodiment 13% Tea Saponin pleocidin microemulsion and indoor virulence experiment thereof
The weight proportion of each component is: Tea Saponin: 1.5%, and pleocidin: 1.5%, methyl alcohol: 10%, cyclohexane: 9%; Ethyl acetate: 8%, cyclohexanone: 25%, agricultural newborn 500:4%, Nongru-700: 8%; AEO-7:10%, GP330:0.5%, glycerine: 0.5%, the water of surplus.By proportioning Tea Saponin and the former medicine of pleocidin are dissolved in methyl alcohol, cyclohexane, the ethyl acetate, mix other composition modulation of back adding and obtain microemulsion.
Indoor virulence and mixed synergies thereof are with reference to routine techniques; Present embodiment adopts following method to carry out: will pick up from does not have the fresh cabbage leaves of using any agricultural chemicals in the solarium; Behind running water flushing and paper towel suck dry moisture, use diameter to process the leaf dish as the card punch of 2cm, and in the soup for preparing of immersion about 5 seconds; Take out, dry for use naturally.The blade of handling is put into culture dish, and every ware is put 3～4 leaf dish, and every ware inserts 10 examination worms, is allowed to condition at and gets food on the leaf.Every ware is 1 repetition, and every concentration is established 4 repetitions; Contrast is handled with the aqueous acetone solution with amount.Each death condition of handling of 48h investigation.Be calculated as follows lethality, Abbott formula calculation correction lethality.
Abbott formula computing formula is following:
Test method adopts the abundant method that toxicity index is calculated the Mixed Pharmacy co-toxicity of passing through that waits the nineteen sixty proposition of Sun Yun.At first record mixture with the method for routine and form mixture each single agent virulence regression equation and obtain LD
50, the toxicity index that is each single agent of criterion calculation with a kind of single agent again, the actual toxicity index of mixture and theoretical toxicity index, calculate at last its co-toxicity coefficient (co-toxicity coefficient, CTC).Its formula of reduction is following:
If confection is M, single agent of forming M is A, B, and percentage composition is P,
Criterion: if the toxicity test co-toxicity coefficient of mixture near 100 expression summation actions, obviously greater than 100 expression synergistic effects, is significantly less than 100 expression antagonisms.
3% Tea Saponin pleocidin microemulsion of present embodiment preparation to 2 age beet armyworm the indoor virulence result see table 1, the fill a prescription LC of 72h of the present invention
50Be 2.34mg/L, its co-toxicity coefficient reaches 551.21, and synergistic effect is remarkable.
Indoor virulence test result (the LC of 72h of table 1 beet armyworm in pairs 2 age
50)
| Medicine | LC 50(mg/L) | Co-toxicity coefficient |
| Tea Saponin | 464.07 | |
| Pleocidin | 6.54 | |
| 1.5% Tea Saponin+1.5% pleocidin microemulsion | 2.34 | 551.21 |
The preparation and the indoor virulence test thereof of embodiment 2 5% Tea Saponin pleocidin missible oil
The weight proportion of each component is: Tea Saponin 4.5%; Pleocidin 0.5%; Surfactant farming breast 500 is 10%, and Nongru-700 is 10%; Organic solvent cyclohexane 20%, ethyl acetate 10%, DMF10%, carrene 10%; Cosolvent methyl alcohol 5%; Stabilizing agent castor oil 5%; Anti-photodissociation agent epoxidized soybean oil 5%; Penetrating agent Laurocapram 10%.Each component is put into modulation kettle mixes well promptly and gets.
Toxicity Determination is with reference to embodiment 1.5% Tea Saponin pleocidin missible oil of present embodiment preparation to 2 age diamondback moth larvae the indoor virulence test result see table 2, the fill a prescription LC of 72h of the present invention
50Be 2.54mg/L, its co-toxicity coefficient reaches 1768, and synergistic effect is obvious.
Indoor virulence test result (the LC of 72h of table 2 diamondback moth larvae in pairs 2 age
50)
| Medicine | LC 50(mg/L) | Co-toxicity coefficient |
| Tea Saponin | 532.65 | |
| Pleocidin | 4.86 | |
| 4.5% Tea Saponin+1.5% pleocidin emulsifiable concentrate | 2.54 | 1768 |
The preparation and the indoor virulence test thereof of embodiment 35.5% Tea Saponin pleocidin missible oil
The weight proportion of each component is: Tea Saponin 0.5%; Pleocidin 5.0%; Surfactant farming breast 500 is 10%, and Nongru-700 is 10%; Organic solvent cyclohexane 20%, ethyl acetate 10%, DMF 10%, carrene 10%; Cosolvent methyl alcohol 4.5%; Stabilizing agent castor oil 5%; Anti-photodissociation agent epoxidized soybean oil 5%; Penetrating agent Laurocapram 10%.Each component is put into modulation kettle mixes well promptly and gets.
Toxicity Determination is with reference to embodiment 1.At 5.5% Tea Saponin pleocidin missible oil of present embodiment preparation the indoor virulence test result of prodenia litura 2 instar larvaes is seen table 2, the fill a prescription LC of 72h of the present invention
50Be 1.16mg/L, its co-toxicity coefficient reaches 2694, and synergistic effect is obvious.
Indoor virulence test result (the LC of 72h of table 2 Spodoptera litura larvae in pairs 2 age
50)
| Medicine | LC 50(mg/L) | Co-toxicity coefficient |
| Tea Saponin | 236.95 | |
| Pleocidin | 3.68 | |
| 0.5% Tea Saponin+5.0% pleocidin emulsifiable concentrate | 0.15 | 2694 |
The preparation and the field control effect thereof of embodiment 4 50.01% Tea Saponin pleocidin wetting powders
The weight proportion of each component is: pleocidin 0.01%; Tea Saponin 50%; Wetting agent bay alcohol radical sodium sulphate 20%; Dispersant lignin 15%; Filler diatomite 14.59%.By proportioning Tea Saponin and the former medicine of pleocidin are carried out joining in the blender behind the comminution by gas stream, in blender, add auxiliary agent respectively, stir promptly and get by proportioning.
2000 times of 50.01% Tea Saponin pleocidin wettable powder dilution agents of present embodiment preparation are handled 2000 times of liquid of contrast agents 2.5% pleocidin suspension and 2000 times of liquid of 50% Tea Saponin aqua to the diamond-back moth spraying.The preventive effect of diamond-back moth was seen table 3 in the 7th day after the medication.Can find out that from result of the test the mixture that the present invention prepares compares with former agricultural chemicals, the control efficiency of insect is significantly strengthened.
Table 3 pair diamond-back moth field control effect (7d is handled in spraying)
| Medicine | Control efficiency |
| 50% Tea Saponin aqua (diluting 2000 times) | 61.68％ |
| 2.5% pleocidin suspension (diluting 2000 times) | 75.29％ |
| 50% Tea Saponin+0.01% pleocidin wetting powder (diluting 2000 times) | 95.87％ |
The preparation of embodiment 5 30.1% Tea Saponin pleocidin suspension and field control effect result of the test thereof
The weight proportion of each component is: Tea Saponin 0.1%; Pleocidin 30%; Surfactant sodium alkyl sulfate 17.9%; Solvent propylene glycol 32%; Cosolvent dimethyl sulfoxide (DMSO) 15%; PH value conditioning agent acetic acid 1%; Synergist Butacide 1.5%; Anti-photodissociation agent castor oil 0.5%; Stabilizing agent epoxidized soybean oil 1.5%; Thickener-silica 0.5%.By proportioning Tea Saponin and the former medicine of pleocidin are added in the above-mentioned auxiliary agent and to arise from the ball mill ball milling with deionized water one and process suspending agent and promptly get.
30.1% Tea Saponin pleocidin suspension of present embodiment preparation is diluted 1500 times to beet armyworm spraying processing, and contrast agents is 1500 times of liquid of 2.5% pleocidin suspension and 1500 times of liquid of 50% Tea Saponin aqua.The preventive effect of beet armyworm was seen table 4 in the 7th day after the medication.Can find out that from result of the test the mixture that the present invention prepares compares with former agricultural chemicals, the control efficiency of insect is significantly strengthened.
Table 4 pair beet armyworm field control effect (7d is handled in spraying)
| Medicine | Control efficiency |
| 50% Tea Saponin aqua (diluting 1500 times) | 70.95％ |
| 2.5% pleocidin suspension (diluting 1500 times) | 78.69％ |
| 0.1% Tea Saponin+30% pleocidin suspension (diluting 1500 times) | 91.68％ |
The preparation and the field control effect thereof of embodiment 6 10% Tea Saponin pleocidin suspended emulsions
The weight proportion of each component is: Tea Saponin 5%; Pleocidin 5%; Surfactant Nongru-700 30%; Solvent toluene 52%; Cosolvent dimethyl sulfoxide (DMSO) 5%; PH value conditioning agent acetic acid 0.5%; Synergist Butacide 0.5%; Anti-photodissociation agent castor oil 0.5%; Stabilizing agent epoxidized soybean oil 0.5%; Thickener-silica 1%.By proportioning Tea Saponin and the former medicine of pleocidin are pulverized, added auxiliary agent and water except that thickener, in high-shear emulsion machine, mix the adding thickener, mix, grind, promptly get after microscopy is qualified through sand mill.
10% Tea Saponin pleocidin suspended emulsion of present embodiment preparation is diluted 1000 times to radish aphid spraying processing, and contrast agents is 1000 times of liquid of 2.5% pleocidin suspension and 1000 times of liquid of 50% Tea Saponin aqua.The preventive effect of radish aphid was seen table 5 in the 7th day after the medication, can find out that from result of the test the mixture that the present invention prepares compares with former agricultural chemicals, the control efficiency of insect is significantly strengthened.
Table 5 pair radish aphid field control effect (7d is handled in spraying)
| Medicine | Control efficiency |
| 50% Tea Saponin aqua (diluting 1000 times) | 70.36％ |
| 2.5% pleocidin suspension (diluting 1000 times) | 78.38％ |
| 5% Tea Saponin+5% pleocidin suspended emulsion (diluting 1000 times) | 97.98％ |
The preparation of embodiment 7 5.5% Tea Saponin pleocidin aqueous emulsions and field control effect test thereof
The weight proportion of each component is: Tea Saponin 5%; Pleocidin 0.5%; Solvent acetone 60%; Emulsifier NPE 20%; Stabilizing agent sodium sorbate 7.5%; Antifreezing agent polyethylene glycol 7%.By ratio requirement Tea Saponin and the former medicine of pleocidin are dissolved in the solvent, emulsifier, cosolvent are joined in Tea Saponin and the former drug solns of pleocidin, slowly add after stirring in the entry, fully stirring promptly gets.
5.5% Tea Saponin pleocidin aqueous emulsion of present embodiment preparation is diluted 2000 times to rice fulgorid spraying processing; Contrast agents is 1500 times of liquid of 50% Tea Saponin aqua dilution and 1000 times of liquid of 2.5% pleocidin suspension dilution, investigation in the 1st, 3,7,14 day and calculating preventive effect behind medicine.The result sees table 6.Can find out that from result of the test the mixture that the present invention prepares compares with former agricultural chemicals, the control efficiency of insect is significantly strengthened, demonstrate good mixed synergies and lasting effect.
Table 6 pair rice fulgorid field control effect (spraying is handled)
| 50% Tea Saponin aqua (diluting 1500 times) | 2.5% pleocidin suspension (diluting 1000 times) | 5% Tea Saponin+0.5% pleocidin aqueous emulsion (diluting 2000 times) | |
| The 1st day | 27.14％ | 57.85％ | 69.18％ |
| The 3rd day | 45.23％ | 63.38％ | 85.76％ |
| The 7th day | 64.35％ | 71.65％ | 94.91％ |
| The 14th day | 58.87％ | 69.52％ | 91.54％ |
Claims (4)
1. the Pesticidal combination that is mixed of Tea Saponin and pleocidin is characterized in that said Pesticidal combination is an active ingredient with Tea Saponin and pleocidin, comprises each component of following weight percentage:
Tea Saponin: 0.5～5.0%;
Pleocidin: 0.5～5.0%;
Auxiliary agent: 90～95%.
2. the Pesticidal combination that Tea Saponin according to claim 1 and pleocidin are mixed is characterized in that said Pesticidal combination is missible oil, wetting powder, microemulsion, suspending agent, suspended emulsion or aqueous emulsion.
3. the Pesticidal combination that is mixed of Tea Saponin and pleocidin is characterized in that said Pesticidal combination is to have the wetting powder that following percentage by weight is formed: pleocidin 0.01%; Tea Saponin 50%; Bay alcohol radical sodium sulphate 20%; Lignin 15%; Diatomite 14.59%.
4. the application of the Pesticidal combination that each described Tea Saponin and pleocidin are mixed among the claim 1-3 is characterized in that being applied to prepare the preparation of control beet armyworm, diamond-back moth, prodenia litura, radish aphid or rice fulgorid.
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| CN102484991B (en) * | 2010-12-02 | 2014-11-12 | 华南农业大学 | Synergic farm pesticide composition of ivermectin and tea saponin |
| CN102511483B (en) * | 2011-12-09 | 2013-10-30 | 湖北仙隆化工股份有限公司 | Special biological pesticide mixture used in lotus root field and preparation method thereof |
| CN102894000B (en) * | 2012-09-05 | 2015-01-07 | 青岛文创科技有限公司 | Tetramycin and tea saponin synergism pesticide composition |
| CN106614840A (en) * | 2016-12-11 | 2017-05-10 | 戴琪 | Method for preparing soil disinfector by using earthworm hydrolysate |
| CN109566668A (en) * | 2018-12-10 | 2019-04-05 | 怀化五零三侗医药科技开发有限公司 | Pesticidal combination, insecticide and preparation method thereof |
| US20220279788A1 (en) * | 2019-07-23 | 2022-09-08 | Jiangsu Rotam Chemistry Co., Ltd. | Emulsifiable concentrate formulations and their uses |
| CN113115780B (en) * | 2021-04-27 | 2022-06-07 | 中土化工（安徽）有限公司 | Insecticidal composition containing spinosad and thiocyclam |
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