CN103609584A - Insecticidal composition containing thiacloprid and flonicamid - Google Patents
Insecticidal composition containing thiacloprid and flonicamid Download PDFInfo
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- CN103609584A CN103609584A CN201310622065.5A CN201310622065A CN103609584A CN 103609584 A CN103609584 A CN 103609584A CN 201310622065 A CN201310622065 A CN 201310622065A CN 103609584 A CN103609584 A CN 103609584A
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Abstract
The invention relates to an insecticidal composition containing thiacloprid and flonicamid. The effective components of the insecticidal composition are thiacloprid and flonicamid in binary compounding, wherein the mass ratio of thiacloprid to flonicamid is (1-50):(50-1); the total mass of thiacloprid and flonicamid as the effective components in the preparation accounts for 1-80% of the total mass of the preparation, and auxiliary components allowable and acceptable to pesticide account for the rest. The dosage forms of the insecticidal composition include emulsifiable concentrate, suspending agent, wettable powder, water dispersible granules, emulsion in water, microemulsion, granules and microcapsules. The insecticidal composition provided by the invention is mainly used for preventing the piercing-sucking type pests such as aphids, red spiders, whiteflies, scale insects, thrips, stinkbugs and the like as well as chewing type mouthpart pests such as leaf rollers, noctuids, tussock moths, hawkmoths, notodontidae, lappet moths, swallowtails, white butterflies and the like.
Description
Technical field
The present invention relates to agriculture chemical compounding technical field, particularly relate to a kind of Pesticidal combination that contains thiacloprid and flonicamid.
Background technology
Thiacloprid is by the novel chloro nicotinic insecticide of Bayer Bitterfeld GmbH Nong Hua company and the cooperative development of Japanese Bayer Nong Hua company.The mechanism of action of thiacloprid and other conventional pesticides are different.Its Main Function engages caudacoria in insect nerve, by being combined with nAChR, and interference insect nervous system normal conduction, cause the obstruction of neural channel, cause a large amount of accumulation of acetylcholine, thereby make insect exaltation, whole body spasm, paralysis and dead.Having stronger interior suction, tag and stomach poison function, there is no cross resistance as pyrethroid, organic phosphates and carbamates, thereby can be used for resistance management with common insecticides, is one of efficient medicament of control pierce-suck type and pests with chewing mouthparts.The chemical name of thiacloprid is (3-((6-chloro-3-pyridyl base) methyl)-1,3-thiazoles quinoline-2-subunit) cyanamide, and its chemical structural formula is
.
Flonicamid is a kind of novel low toxicity picolinamide class insect growth regulator, IGR insecticides of the former industry development of Japanese stone, flonicamid is tagged and stomach poison function except having, also there is good never poison and quick Antifeedant Effects, for numerous crops control sucking insects.The chemical name of flonicamid is N-cyanogen methyl-(trifluoromethyl) vitamin PP, and its chemical structural formula is
.
In the real process of agricultural production, using chemical agent is the most effectively means of control plant pest, but the problem the most easily producing by chemical control insect is the generation of pest resistance to insecticide.And long-term use single chemical insecticide continuously high dose, easily cause the series of problems such as residual, environmental pollution of medicament.Reasonably chemical insecticide is composite or be mixed and have expansion insecticidal spectrum, improve control efficiency, extend the optimum period for applying fertilizer, reduce dosage, reduce poisoning, reduce residual, delay pest resistance and the positive feature such as drug-fast generation and development, pesticide compositional or to be mixed be one of the effective method the most addressing the above problem.We filter out thiacloprid and flonicamid is composite on the basis of lab screening and field trial, have obvious synergistic effect.And about thiacloprid and the composite Pesticidal combination of flonicamid and application, there is no at present people reported.
Summary of the invention
Based on above situation, the object of the invention is to provide a kind of new and effective agricultural insecticide composition.Be mainly used in controlling sucking insects aphid, two spotted spider mite, aleyrodid, scale insect, thrips, stinkbug etc. and pests with chewing mouthparts leaf roller, noctuid, poison moth, hawkmoth, boat moth, lappet moth, swallowtail butterfly, white butterfly etc.
Technical scheme of the present invention realizes by following measures:
A kind of Pesticidal combination that contains thiacloprid and flonicamid, in this Pesticidal combination, the mass ratio of active ingredient thiacloprid and flonicamid is 1～50: 50～1, described Pesticidal combination of the present invention is through toxicity test experimental verification, the mass ratio of thiacloprid and flonicamid is 1～20: 20～1 o'clock, synergistic effect was better.
The formulations of pesticide that described Pesticidal combination of the present invention can be prepared are missible oil, suspending agent, wetting powder, water dispersible granules, aqueous emulsion, microemulsion, granule, microcapsule formulations.Thiacloprid and the flonicamid gross mass in preparation accounts for 1%～80% of the whole quality of the pharmaceutical preparations, while wherein accounting for 5%～50%, and toxicity and residually reach good balance, cost is also lower.
The specific embodiments of the formulations of pesticide that Pesticidal combination of the present invention is mixed with is as follows:
Described Pesticidal combination is cream preparation, and the mass fraction of component is: 1～50 part of thiacloprid; 1～50 part of flonicamid; 10～30 parts of conventional emulsifiers; 20～50 parts of conventional solvents; 1～5 part of conventional synergist.The concrete production stage of this cream preparation is for first adding active ingredient thiacloprid and flonicamid in solvent the oily liquids that becomes transparent and homogeneous after adding again emulsifier, synergist to stir after dissolving completely, filling, can be made into the cream preparation of the present composition.
Described Pesticidal combination is suspending agent, and the mass fraction of component is: 1～50 part of thiacloprid; 1～50 part of flonicamid; 5～20 parts of dispersants; 1～5 part of antifreezing agent; 0.1～2 part of thickener; 0.1～0.8 part of defoamer; 0～10 part of penetrating agent; 0.1～5 part of pH value conditioning agent; Water, surplus.The concrete production stage of this suspending agent is for first mixing other auxiliary agents, through high speed shear, mix, add active ingredient thiacloprid and flonicamid, in ball crusher, abrading-ball is 2～3 hours, make a diameter all below 5mm, can be made into the suspending agent preparation of the present composition.
Described Pesticidal combination is wetting powder, and the mass fraction of component is: 1～50 part of thiacloprid; 1～50 part of flonicamid; 3～10 parts of dispersants; 1～5 part of wetting agent; Filler, surplus.The concrete production stage of this wetting powder is: by above-mentioned formula, active ingredient thiacloprid is mixed with flonicamid and dispersant, wetting agent and filler, uniform stirring in stirred tank, after airslide disintegrating mill, mixing, can be made into the wetting powder of the present composition.
Described Pesticidal combination is water dispersible granules, and the mass fraction of component is: 1～50 part of thiacloprid; 1～50 part of flonicamid; 3～10 parts of dispersants; 1～10 part of wetting agent; 1～5 part of disintegrant; Filler surplus.The concrete production stage of this water dispersible granules is: by above-mentioned formula, active ingredient thiacloprid is mixed with flonicamid and dispersant, wetting agent, disintegrant and filler, with micro jet, pulverize, through mediating, then add and in fluidized bed prilling dryer, carry out granulation, dry, screening by sample analysis, can be made into the water dispersible granules of the present composition.
Described Pesticidal combination is aqueous emulsion, and the mass fraction of component is: 1～50 part of thiacloprid; 1～50 part of flonicamid; 3～30 parts of emulsifier; 5～15 parts of solvents; 2～15 parts of stabilizing agents; 1～5 part of antifreezing agent; 0.1～8 part of defoamer; 0.2～2 part of thickener; Water, surplus.The concrete production stage of this aqueous emulsion is: first thiacloprid and flonicamid, solvent and emulsifier, cosolvent are added together, make to be dissolved into uniform oil phase; By part water, antifreeze, other the insecticides adjuvant such as antimicrobial mixes into uniform water; When reactor high speed stirs, oil phase is added to water, slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water, shear about half an hour, form the aqueous emulsion of oil-in-water type, can be made into the aqueous emulsion of the present composition.
Described Pesticidal combination is microemulsion, and the mass fraction of component is: 1～50 part of thiacloprid; 1～50 part of flonicamid; 10～30 parts of emulsifier, 1～8 part of antifreezing agent, 0.5～10 part of stabilizing agent, 20～50 parts of conventional solvent cosolvents.Thiacloprid and flonicamid are dissolved completely with cosolvent, then add other compositions such as emulsifier, antifreezing agent stabilizing agent, evenly mix, finally add water, after fully stirring, can be made into microemulsion.
Described Pesticidal combination is granule, and the mass fraction of component is: 1～50 part of thiacloprid; 1～50 part of flonicamid; 1～10 part of wetting dispersing agent; 0.1～5 part of thickener; 0.1～5 part of defoamer; Castor oil, surplus is supplied.Each components such as active ingredient thiacloprid and flonicamid, dispersant, stabilizing agent, defoamer and solvent are mixed in the ratio of formula, put into after the grinding of sand milling still, send in mixer for well-distribution and mix and get product.
Described Pesticidal combination is microcapsule formulations, and the mass fraction of component is: 1～50 part of thiacloprid; 1～50 part of flonicamid; 5～20 parts, urea; 5～20 parts, formaldehyde; 5～20 parts of emulsifying dispersants; 1～5 part of antifreezing agent; 0.1～2 part of thickener; 0.1～0.8 part of defoamer; Water, surplus.In being housed, the there-necked flask of agitating device adds urea and formaldehyde (amount of substance ratio is about l:1.5～2.0), left and right, pH value to 8～9 with sodium hydroxide solution regulator solution, then be warming up to 70～80 ℃, reaction obtains stable urea resin prepolymer.The former medicine of getting a certain amount of thiacloprid and flonicamid is dissolved in cyclohexane, and adds emulsifying dispersant in solution, follows vigorous stirring, the O/W type stable emulsion that to be made into the aqueous solution of take containing emulsifying dispersant be water.Above-mentioned urea resin prepolymer is added in emulsion, regulate pH value, polymerization reaction take place under acid catalysis condition, is wrapped oil phase substance, forms microcapsule granule.Slowly heat up, solidify, temperature is controlled at 40～50 ℃, hardening time 1h.Selection adds appropriate auxiliary agent, the microcapsule suspending agent that gets final product stablely.
Wherein above-described emulsifier is selected from calcium dodecyl benzene sulfonate and aliphatic acid polyethenoxy ether, alkylphenol polyoxyethylene sulfosuccinate, styrylphenol polyoxyethylene ether, polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy base ester, any or more than one any mixtures than forming in polyoxyethylene aliphatic alcohol ether.
Described solvent is dimethylbenzene or biodiesel, toluene, and diesel oil, methyl alcohol, ethanol, n-butanol, isopropyl alcohol, turpentine oil, solvent naphtha, dimethyl formamide, dimethyl sulfoxide (DMSO), one or more in water equal solvent are arbitrarily than the mixture forming.
Described dispersant is selected from polycarboxylate, lignosulfonates, alkylphenol polyoxyethylene methyl ether condensate sulfate, alkylsulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, polyoxyethylene carboxylate, aliphatic amine polyoxyethylene ether, one or more in fatty acid glyceride APEO.
Described wetting agent is selected from lauryl sodium sulfate, calcium dodecyl benzene sulfonate, and Nekal BX, moistening bleeding agent F, alkylbenzenesulfonate polyoxyethylene triphen is phosphenylic acid salt dimly, spaonin powder, silkworm excrement, one or more in soapberry powder.
Described disintegrant is selected from bentonite, urea, ammonium sulfate, aluminium chloride, citric acid, succinic acid, one or more in sodium bicarbonate.
Described thickener is selected from xanthans, carboxymethyl cellulose, carboxyethyl cellulose, methylcellulose, Magnesiumaluminumsilicate, in polyvinyl alcohol one or more.
Described stabilizing agent is selected from sodium citrate, a kind of in resorcinol.
Described antifreezing agent is selected from ethylene glycol, propane diols, one or more in glycerine.
Described defoamer is selected from silicone oil, silicone compound, C
10-20saturated fat acid compounds, C
8-10one or more of fatty alcohol.
Described filler is selected from kaolin, diatomite, bentonite, attapulgite, white carbon, starch, one or more in precipitated calcium carbonate.
The present invention be take the compounded pesticides that active ingredient is thiacloprid and flonicamid and is had obvious synergistic effect, delay the drug-fast generation in key, and reduced to become to produce cost and use cost, be mainly used in controlling sucking insects aphid, two spotted spider mite, aleyrodid, scale insect, thrips, stinkbug etc. and pests with chewing mouthparts leaf roller, noctuid, poison moth, hawkmoth, boat moth, lappet moth, swallowtail butterfly, white butterfly etc.
Embodiment
For making technical scheme of the present invention, object and advantage are clearer, and the present invention describes with following specific embodiment, but the present invention is not limited to these examples.The mode that effect experiment of the present invention adopts indoor biometrics and field trial to combine, if no special instructions, the ratio of below mentioning is all ratio of quality and the number of copies.
Embodiment: thiacloprid proportioning co-toxicity experiments different from flonicamid.
1.1 reagent agent
98% the former medicine of thiacloprid, 96% the former medicine of flonicamid, above-mentioned former medicine provides by research and development department of extra large rel medicine company limited company.
1.2 test targets
Beet armyworm: the third-instar larvae of the responsive type beet armyworm that 5 generations of indoor continuous raising and its Individual Size are consistent with physiological status.Temperature (25 ± 2) ℃.Relative moisture 65% ± 5%, periodicity of illumination 12/12h (L/D).
1.3 experimental procedure
1.3.1 medicament preparation
First use the former medicine of acetone solution, according to the result of preliminary experiment, two appropriate former medicines are made into several different proportionings, then it is stand-by with acetone, each processing to be diluted to respectively to several concentration gradients.
The drop method that adopts NY/T1 154.1-2006 to recommend is measured.By micro intravenous drip device solvent clean, regulate dropper to stand-by state.With writing brush, choose the examination worm CO of neat and consistent
2slight paralysis is placed in 9cm culture dish, then with micro intravenous drip device, medicament is dripped to the belly of polypide by head, every some drops physic liquor 0.1L, the corresponding acetone containing with drop 0.1L be treated to contrast, the examination worm after drop is moved to (28
2) ℃, in the culture dish of relative moisture 75%, normally cultivate.Every processing repeats for 4 times, 20 examination worms of every repetition.
1.4 control time
After processing, 24h investigation examination worm death condition (judgement examination worm death standard is gently to sting without autonomic response with pin), records total borer population and dead borer population.
1.5 data statistics and analysis
According to investigation statistics, calculate the corrected mortality that each is processed.And adopt the abundant method of Sun Yun to calculate the co-toxicity coefficient (CTC value) of mixture with reference to NY/T1 154.7-2006.If contrast lethality <5%, does not proofread and correct, contrast lethality, between 5%-20%, is proofreaied and correct by formula 2, contrast lethality >20%, and test need be reformed.
The logarithm value of drug concentration (mg/L) of take is independent variable X, and the probability value of corrected mortality of take is dependent variable y, sets up respectively virulence regression equation formula, adopts DPS software to calculate the EC of single dose and each proportioning mixture
50according to the abundant method of Sun Yun, calculate co-toxicity coefficient (CTC).Co-toxicity coefficient CTC, computing formula is as follows: (take thiacloprid as standard medicament, its toxicity index is 100):
The EC of the toxicity index of flonicamid (TI)=thiacloprid
50the EC of/flonicamid
50* 100
The EC of true toxicity index (ATI)=thiacloprid of M
50the EC of/M
50* 100
TI * P flonicamid of TI * P thiacloprid+flonicamid of theoretical toxicity index (TTI)=thiacloprid of M
TTI * 100 of the ATI/M of the co-toxicity coefficient of M (CTC)=M
In formula:
M is thiacloprid and the mixture of the different proportionings of flonicamid
P thiacloprid is thiacloprid shared ratio in mixture
P flonicamid is flonicamid shared ratio in mixture.
2.1 toxicity test results
Table 1 thiacloprid and the flonicamid indoor measurement result to Frankliniella occidentalis
As can be seen from the table, in active ingredient thiacloprid: when flonicamid ratio is 1:50～50:1 dilution, its co-toxicity coefficient is all greater than 120, shows certain synergistic effect.Result of the test shows, under indoor conditions, thiacloprid and flonicamid are composite all has higher activity to beet armyworm, and suggestion is carried out further field control effectiveness test to suitable proportion 1:10～10:1 left and right mixture preparation, to evaluate its field practical application effect.
3, the experimental result of field trial control thrips, cotton aphid
3.1 field trial control thrips tests
3.1.1 test method
Test in Liquan capsicum ground, Xianyang, Shanxi province city, thrips is contained the phase of sending out and carries out.Use WF-16 type knapsack hand sprayer, shower nozzle is single fan nozzle, and operating pressure is 0.2-0.4Mpa, and spray amount is 0.36-0.48L/min, carries out routine spraying, makes every effort to evenly thoughtful during spray medicine.
Duration of test weather is good, and daily mean temperature is 17.8～25.4 ℃.Dispenser same day is without rain.
3.1.2 investigation method
Investigation insect population radix ，Mei 5 of communities sampling before dispenser, total the number of thrips in every some random searching plant middle and upper part l0 piece spends, same method is 3d after dispenser, 7d, 10d checks the remaining borer population of living, and calculates insect population decline rate and control efficiency.
3.1.3 drug effect computational methods
Insect population decline rate (%)=(larva number after medicine prelarva number-medicine)/medicine prelarva number * 100
Preventive effect (%)=(treatment region insect population decline rate-contrast insect population decline rate)/(100-check plot insect population decline rate) * 100.
3.1.4 poisoning investigation method
Within 10 days after medicine, observe chili growth situation, range estimation medicament to capsicum without poisoning.
3.1.5 field control effectiveness test result
As can be seen from Table 2, the Mixed Pharmacy of different proportion, by different consumptions, carry out field experiment, after medicine, its control efficiency to thrips is better than contrasting medicament, with thiacloprid and flonicamid with the composite control of 5:1 ratio thrips instant effect, efficiency time is long, and control efficiency is good, and insecticidal effect increases progressively along with the increase of consumption.This is mixed, and can effectively control the harm of thrips to host, to the raising of quality of vegetable with increase production significantly, has stronger popularizing value.
3.2 field experiment control cotton aphid tests
3.2.1 test method
Test Zhang Wuzhuan village, the careless villages and small towns Cotton Fields in Chengwu County and carry out, soil is clay, the cultivation condition of middle fertility ，Ge community, water and fertilizer management uniformity.Cotton variety is transgenic cotton against pests Lumianyan 15.
3.2.2 investigation method
5 samplings of experimental plot inner opposite angle line, fix 4 strains at every, and every strain is 3 of upper, middle and lower leaf fixedly, 60 leaves of fixing investigation 20 strain altogether, and 1d before medicine and after dispenser, 3d, 7d checks the remaining borer population of living, and calculates insect population decline rate and control efficiency.
3.2.3 drug effect computational methods
Insect population decline rate (%)=(larva number after medicine prelarva number-medicine)/medicine prelarva number * 100
Preventive effect (%)=(treatment region insect population decline rate-contrast insect population decline rate)/(100-check plot insect population decline rate) * 100.
3.2.4 poisoning investigation method
Within 7 days after medicine, observe cotton growth situation, range estimation medicament to cotton without poisoning.
3.2.5 field control effectiveness test result
As can be seen from Table 3, the Mixed Pharmacy of different proportion, by different consumptions, carry out field experiment, after medicine, its control efficiency to cotton aphid is better than contrasting medicament, thiacloprid and flonicamid are with the composite anti-instant effect that eliminates aphis of 5:1 ratio, efficiency time is long, and control efficiency is good, and insecticidal effect increases progressively along with the increase of consumption.According to experimental observation, each medication is processed cotton is not all produced to poisoning.To the raising of cotton quality with increase production significantly, there is stronger popularizing value.
To sum up described in indoor biometrics and twice field experiment result, of the present inventionly take thiacloprid and flonicamid and carry out two yuan of composite Pesticidal combinations as active ingredient, to beet armyworm, thrips, the insects such as cotton aphid show good control efficiency, to target crop safety, compare with single dose, Pesticidal combination of the present invention has mechanism of action uniqueness, unit consumption is few, quick-acting is good, lasting period is long, the plurality of advantages such as effect field is more wide in range, to plant diseases, insect pest can have better control, so, in research and development of the present invention and promotion conference, produce very large economic worth, to vast vegetables, the protection tool of the increasing both production and income of the peasant household in fruit tree producing region and local environment is of great significance.
Claims (4)
1. a Pesticidal combination that contains thiacloprid and flonicamid, it is characterized in that: the active ingredient of this Pesticidal combination is thiacloprid and flonicamid binary built, all the other are auxiliary element, and wherein the mass ratio of active ingredient thiacloprid and flonicamid is 1～50: 50～1.
2. Pesticidal combination according to claim 1, is characterized in that: thiacloprid and the flonicamid gross mass in preparation accounts for 1%～80% of the whole quality of the pharmaceutical preparations.
3. Pesticidal combination according to claim 2, is characterized in that: thiacloprid and the flonicamid gross weight in preparation accounts for 5%～50% of the whole quality of the pharmaceutical preparations.
4. according to the Pesticidal combination described in claim 1 or 2 or 3, it is characterized in that: the formulation of this Pesticidal combination is missible oil, suspending agent, wetting powder, water dispersible granules, aqueous emulsion, microemulsion, granule, microcapsule formulations
.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109699670A (en) * | 2018-12-12 | 2019-05-03 | 兴农药业（中国）有限公司 | A kind of agricultural chemical composition for disinsection and its preparation process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109699670A (en) * | 2018-12-12 | 2019-05-03 | 兴农药业（中国）有限公司 | A kind of agricultural chemical composition for disinsection and its preparation process |
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Application publication date: 20140305 |