CN104430414A - Composite insecticidal composition and preparation method thereof - Google Patents
Composite insecticidal composition and preparation method thereof Download PDFInfo
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- CN104430414A CN104430414A CN201410687757.2A CN201410687757A CN104430414A CN 104430414 A CN104430414 A CN 104430414A CN 201410687757 A CN201410687757 A CN 201410687757A CN 104430414 A CN104430414 A CN 104430414A
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Abstract
The invention discloses a composite insecticidal composition and a preparation method thereof. The composite insecticidal composition comprises flufiprole and fufenozide, wherein the weight ratio of flufiprole to fufenozide is (1-50) to (50-1). The composition is prepared into various pesticide formulations through the addition of an emulgator, a cosolvent, an antifreezing agent, a defoamer, a thickener, a stabilizer, a PH regulator and the like, but an environmental-friendly water-based suspending agent preparation is preferably selected. The composition has a synergistic interaction effect in the insecticidal efficacy, and can delay pest resistance to insecticides. The composite insecticidal composition can prevent and control various injurious insects such as plant hoppers, whiteflies, aphides, thrips, diamond back moths, spodoptera exigua and mites on crops.
Description
Technical field
The present invention relates to technical field of pesticide preparations, be specifically related to a kind of compound pesticide compositions and preparation method thereof.
Background technology
Butene-fipronil: English name: Flufiprole, chemical name: 3-cyano group-5-methylallyl amino-1-(2,6-dichlor-4-trifluoromethyl phenyl)-4-trifluoromethyl sulfinyl pyrazole.Molecular formula: C16H10Cl2F6N4OS.
White powder, fusing point: 172 ~ 174 DEG C.25 DEG C of solvability are respectively: water 0.02g/L, ethyl acetate 260.02g/L.Normal temperature is stable under soda acid.
This compound is the Phenylpyrazole insecticides formulated by Ruize Farm-Chemicals Co., Ltd., Dalian, insecticidal mechanism is novel, unique, active high, mainly hinder the chloride metabolism that insect γ-aminobutyric acid controls, there is stomach toxicity, tag and certain systemic action, can be applicable to the larva and the adult that the crops such as paddy rice, cotton, vegetables, corn, fruit tree prevent and treat Lepidoptera, coleoptera, Semiptera etc., as paddy rice two, paddy stem borer, cotton bollworm, stinkbug, diamond-back moth, cabbage caterpillar Liriomyza etc. all have high-level preventive effect, lasting period is long, and to crop without poisoning.And to fish low toxicity, will be widely used and promote.
Furan tebufenozide, the insecticide that China has independent intellectual property right, chemistry N mono-(2,3-_7-hydrogen 1 by name, 7-dimethyl. benzofuran .6 mono-formoxyl) a N ' tertiary butyl .N '. (3,5 dimethylbenzoyls) hydrazine, Chinese name furan tebufenozide is a kind of white powdery solids, fusing point: 146.0-148.00C, molten-in organic solvent, water insoluble low toxicity is to fish, honeybee, bird, to the high poison of silkworm; To honeybee low-risk, extremely malicious to silkworm.
Furan tebufenozide, as the N mono-tertiary butyl bishydrazide compounds containing benzofuran ring, has the moulting hormone regulating and controlling effect that bishydrazide compounds generally has.After pests official loyal to his sovereign, there is abnormal reaction of casting off a skin very soon, stop taking food, cast off a skin ahead of time, but cannot complete due to abnormal casting off a skin and cast off a skin, cause larva to dewater and hungry and dead.Stop damage to crops in a few hours after pests official loyal to his sovereign, although the death rate of insect differs, furan tebufenozide to the protected effect of crop both fast and sound! Equally also show higher biologically active.
Summary of the invention
The technical problem to be solved in the present invention is, for existing preparation technique Problems existing, proposes a kind of Pesticidal combination containing butene-fipronil and uses thereof, improves original preparation technique, improve preventive effect.
Technical solution of the present invention is as follows:
The invention provides one group of Pesticidal combination containing butene-fipronil, said composition comprises butene-fipronil and furan tebufenozide, can prevent and treat simultaneously, have synergistic function to the multiple insect pest of crops.
The present invention also additionally provides a kind of suspending agent comprising above-mentioned composition, and percentage by weight consists of:
Above-mentioned all components sum is absolutely
Described wetting dispersing agent can select nonionic surface active agent or anionic surfactant, described non-ionic surface active agent is phenethyl phenol polyethenoxy ether, the rare ether of phenethyl phenol polyethenoxy polyoxy third, alkylphenol polyoxyethylene, alkylphenol polyoxyethylene formaldehyde condensation products, fatty alcohol-polyoxyethylene ether, castor oil polyoxyethylene ether, polystyrene-based phenol formaldehyde resin APEO, phenethyl phenol polyethenoxy ether phosphate, alkylphenol polyoxyethylene phosphate etc., and described anion surfactant is alkyl benzene calcium sulfonate, sodium alkyl benzene sulfonate, C
8~ C
20sodium alkyl sulfate etc.
The optional spent glycol of described antifreezing agent, propane diols, glycerine, polyethylene glycol, sorbierite, urea one of them.
Described defoamer can select organic silicone oil, isooctanol etc.
Described thickener can select xanthans, gum Arabic, carboxymethyl cellulose, CMC, polyvinyl alcohol etc.
Described stabilizing agent can select epoxychloropropane, MPD, tributyl phosphate, sulfonic acid ammonium salt, phosphate, epoxidized vegetable oil etc.
Described PH conditioning agent can select the one in citric acid, lactic acid, glacial acetic acid, hydrochloric acid, phosphoric acid, polyphosphoric acids.
Water of the present invention is running water or ionized water, preferred running water.
Another technical solution of the present invention is, described composition aqueous chemical preparation preparation method comprises the following steps:
Butene-fipronil and the former medicine of furan tebufenozide and dispersion wetting agent, antifreeze, defoamer, antimicrobial are carried out high speed dispersion according to the ratio of described each component, through sand mill, mixed material is ground to below particle diameter 5um, to rear mixing kettle, add thickener, pH value regulator etc. stir, finished product.
Embodiment
In order to understand essence of the present invention better, describe in detail with instantiation below, but the present invention is not limited thereto.
Embodiment 1
40% butene-fipronil furan tebufenozide suspending agent preparation, each component proportion by weight:
Its preparation process is as follows: butene-fipronil and the former medicine of furan tebufenozide and point phenethyl phenol polyethenoxy ether, alkylphenol polyoxyethylene, part water are carried out high speed dispersion 30min according to described ratio, through sand mill, mixed material is ground to below particle diameter 5um, to rear mixing kettle, add ethylene glycol, citric acid, xanthans etc. to stir, finished product.
Experimental example 1
The process taking butene-fipronil and furan tebufenozide employing embodiment 1 is mixed with by different proportion the butene-fipronil furan tebufenozide suspending agent that total active ingredient weight percentage is 30%.Concrete ratio sees the following form.
Leaf dipping method is adopted to carry out indoor synergy biologicall test, resistance diamond-back moth is selected to be target pest, often process repetition 3 times, every concentration process 60, calculates virulence regression equation and the lethal concentration of 50 of each medicament antagonism diamond-back moth by probability value method, press the abundant method of Sun Yun calculate co-toxicity coefficient by LC50 value, evaluate mixed effect, usually show three kinds of type of action, i.e. synergy, addition and antagonism, when co-toxicity coefficient (CTC) is greater than 120, there is synergistic effect.
The EC50*100 of the EC50/AB of actual toxicity index ATI (AB)=A
Theoretical toxicity index TTI (AB)=percentage+TI (B) * B percentage co-toxicity coefficient CTC=ATI (AB) in the mixture/TTI (AB) * 100 of TI (A) * A in mixture
The results are shown in following table:
The toxicity test result of table 1 butene-fipronil and the composite and single dose antagonism diamond-back moth of furan tebufenozide
As can be seen from Table 1, butene-fipronil and furan tebufenozide co-toxicity coefficient in ratio range is all greater than 120, illustrates that both all have synergistic function within the scope of this.
Experimental example 2
Leaf dipping method is adopted to carry out indoor synergy biologicall test, selection resistant bollworm is target pest, often process repetition 3 times, every concentration process 60, virulence regression equation and the lethal concentration of 50 of each medicament antagonism diamond-back moth is calculated by probability value method, press the abundant method of Sun Yun by LC50 value and calculate co-toxicity coefficient, evaluate mixed effect.
The results are shown in following table:
The toxicity test result of table 2 butene-fipronil and the composite and single dose antagonism cotton bollworm of furan tebufenozide
Reagent agent | EC50(mg/l) | ATI | TTI | CTC |
Butene-fipronil | 7.34 | |||
Furan tebufenozide | 10.16 | |||
Butene-fipronil: furan tebufenozide=1:10 | 7.36 | 187.5 | 110.9 | 169.1 |
Butene-fipronil: furan tebufenozide=1:5 | 6.35 | 198.3 | 134.3 | 147.7 |
Butene-fipronil: furan tebufenozide=1:2 | 5.32 | 178.6 | 103.7 | 172.2 |
Butene-fipronil: furan tebufenozide=1:1 | 6.02 | 201.4 | 109.4 | 184.1 |
As can be seen from Table 2, butene-fipronil and furan tebufenozide co-toxicity coefficient in ratio range is all greater than 120, illustrates that both all have synergistic function within the scope of this.
Embodiment 2
20% butene-fipronil furan tebufenozide suspending agent preparation, each component proportion by weight:
Preparation method is with reference to embodiment 1
Experimental example 3
Control vegetables diamond-back moth field control effectiveness test is carried out to embodiment 2, with 20% butene-fipronil can wet-milling and 20% furan tebufenozide missible oil for contrast medicament, be blank with clear water, after medicine, look into 7 days, 14 days results.Result sees the following form:
Table 3 butene-fipronil furan tebufenozide compound drug is to the field test results of vegetables diamond-back moth
As shown in Table 3, the invention composition suspending agent of the present embodiment 2 gained all shows good insecticidal activity under dilution 2000 times and 1000 times of concentration, and higher than the insecticidal activity of single dose.Illustrate that the suspending agent antagonism diamond-back moth of gained of the present invention has good preventive effect.
Experimental example 4
Carry out preventing and treating the field control effectiveness test of cotton bollworm to embodiment 2, with 20% butene-fipronil can wet-milling and 20% furan tebufenozide missible oil for contrast medicament, be blank with clear water, after medicine, look into 7 days, 14 days results.Result sees the following form:
Table 4 butene-fipronil furan tebufenozide compound drug is to the field test results of cotton bollworm
As shown in Table 4, the invention composition suspending agent of the present embodiment 2 gained all shows good insecticidal activity under dilution 1600 times and 800 times of concentration, and higher than the insecticidal activity of single dose.Illustrate that the suspending agent of gained of the present invention has good preventive effect to cotton bollworm.
Comprehensive above experimental result shows, the composition of butene-fipronil of the present invention and furan tebufenozide all has good control efficiency to various pests, decrease spraying times and improve control efficiency, and adopt the water base agent type of safety, be the new formulation of environment-friendly high-efficiency, be conducive to applying.
Claims (10)
1. a compound pesticide compositions, is characterized in that, described composition comprises butene-fipronil and furan tebufenozide two kinds of components, and its weight proportion is 1-50:50-1.
2. a kind of compound pesticide compositions according to claim 1, is characterized in that, described composition can prevent and treat the various insects such as plant hopper on crops, aleyrodid, aphid, thrips, diamond-back moth, beet armyworm, mite class.
3. a kind of compound pesticide compositions according to claim 1, it is characterized in that, described composition adds the components such as emulsifier, cosolvent, antifreezing agent, defoamer, thickener, stabilizing agent, PH conditioning agent, water and makes the various formulations of pesticide, preferably suspending agent.
4. the suspending agent of composition according to claim 3, it is characterized in that, described emulsifier can select nonionic surface active agent or anionic surfactant, described non-ionic surface active agent is phenethyl phenol polyethenoxy ether, the rare ether of phenethyl phenol polyethenoxy polyoxy third, alkylphenol polyoxyethylene, alkylphenol polyoxyethylene formaldehyde condensation products, fatty alcohol-polyoxyethylene ether, castor oil polyoxyethylene ether, polystyrene-based phenol formaldehyde resin APEO, phenethyl phenol polyethenoxy ether phosphate, alkylphenol polyoxyethylene phosphate etc., described anion surfactant is alkyl benzene calcium sulfonate, sodium alkyl benzene sulfonate, C
8~ C
20sodium alkyl sulfate etc.
5. the suspending agent of composition according to claim 3, is characterized in that, the optional spent glycol of described antifreezing agent, propane diols, glycerine, polyethylene glycol, sorbierite, urea one of them.
6. the suspending agent of composition according to claim 3, is characterized in that, described defoamer can select organic silicone oil, isooctanol etc.
7. the suspending agent of composition according to claim 3, is characterized in that, described thickener can select xanthans, gum Arabic, carboxymethyl cellulose, CMC, polyvinyl alcohol etc.
8. the suspending agent of composition according to claim 3, is characterized in that, described stabilizing agent can select epoxychloropropane, MPD, tributyl phosphate, sulfonic acid ammonium salt, phosphate, epoxidized vegetable oil etc.
9. the suspending agent of composition according to claim 3, is characterized in that, described PH conditioning agent can select the one in citric acid, lactic acid, glacial acetic acid, hydrochloric acid, phosphoric acid, polyphosphoric acids.
10. one kind as arbitrary in claim 1-9 as described in the preparation method of compound pesticide compositions, it is characterized in that, comprise the following steps: butene-fipronil and the former medicine of furan tebufenozide and dispersion wetting agent, antifreeze, defoamer, antimicrobial are carried out high speed dispersion according to the ratio of described each component, through sand mill, mixed material is ground to below particle diameter 5um, to rear mixing kettle, add thickener, pH value regulator etc. stir, finished product.
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Application publication date: 20150325 |