CN103478158B - Insecticidal composition containing cyenopyrafen and bistrifluron - Google Patents
Insecticidal composition containing cyenopyrafen and bistrifluron Download PDFInfo
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Abstract
The invention relates to an insecticidal composition containing cyenopyrafen and bistrifluron. The insecticidal composition is characterized in that the cyenopyrafen and the bistrifluron are taken as active ingredients for binary mixture, the remaining is auxiliary ingredients used in preparation of a preparation, and the weight percentage ratio of the active ingredients, namely the cyenopyrafen and the bistrifluron is 5-50: 50-5, preferably 5-25: 30-5. Pesticide formulations which can be prepared by the insecticidal composition comprise emulsions in water, micro-emulsions, suspension concentrates, wettable powder and water dispersible granules, and in every formulation, the total weight of the active ingredients, namely the cyenopyrafen and the bistrifluron, accounts for 5%-40%, preferably 10%-30% of the total weight of the whole preparation. The insecticidal composition disclosed by the invention has obvious synergy, is highly effective for not only mites, but also other tea tree pests, vegetable lepidoptera pests and the like, and can obviously reduce the using quantity of the active ingredients, reduce the using cost, delay the production of drug resistance of the pests, realize low residues of pesticides and realize a more environment-friendly effect.
Description
Technical field
The present invention relates to agriculture chemical compounding technical field, be specifically related to a kind of Pesticidal combination that contains azoles mite cyanogen and bistrifluron.
Background technology
Azoles mite cyanogen (cyenopyrafen) is again nitrile pyrrole mite ester, and by daily output, chemical company develops, and mechanism of action is, after tert-butyl ester hydrolysis, mitochondrial protein Complex II is shown to outstanding inhibitory action, hinders electronics transmission, destroys oxidative phosphorylation process.This mechanism of action have not been reported in existing insecticide, be mainly used in preventing and treating on fruit tree, vegetables and tea tree as mite pests such as two-spotted spider mite, citrus red mite, citrus red mite, Tetranychus cinnabarinus, hawthron spider mite, European red mite, omnivorous line mite, yellow tea mites.Azoles mite cyanogen is a kind of new insecticidal compounds, with 1,3,4-trimethyl pyrazoles-5 carboxylate methyl ester and be initiation material to tert-butyl benzene acetonitrile, make intermediate 3-(1 through condensation reaction, 3,4-trimethyl pyrazoles-5-yl)-2-(4-tert-butyl-phenyl)-3-hydroxyl acrylonitrile, finally reacts with pivaloyl chloride again and makes cyenopyrafen and Z formula isomer thereof.The chemical structural formula of azoles mite cyanogen (cyenopyrafen) is as follows:
。
Bistrifluron (bistrifluron); chemical name is: 1-[2-chloro-3; two (trifluoromethyl) phenyl of 5-]-3-(2; 6-difluoro benzoyl) urea; belong to a kind of high activity insect growth regulator, IGR; the mechanism of action is synthetic for suppressing insect chitin, affects insect endepidermis and generates, and insect can not be casted off a skin smoothly and death.This compound structure novelty, mechanism of action uniqueness and biologically active are higher, can effectively prevent and treat most of lepidoptera pests of the various plants such as vegetables, tealeaves, cotton, and antagonism insect is generally effective, and to crop, natural enemy, people and animals and environment high safety.The chemical structural formula of bistrifluron (bistrifluron) is:
。
China adopts the single miticide of active ingredient to anti-Zhiduo County of the mite pest on fruit tree, vegetables and tea tree at present, effect is all undesirable, the novel efficient miticide acaricidal rate such as picture spiral shell mite ester is only between 60% to 70%, and this class efficient miticide mostly is multinational patented product, domestic enterprise cannot generally apply and produce, and causes peasant's drug cost high.At present the domestic control to the Lepidoptera in the various plants such as vegetables, tealeaves, cotton, Semiptera insect (as plane tree side wing lace bug etc.) still mainly adopts the organophosphorus insecticideses such as malathion, sumithion, orthene to prevent and treat in addition, organophosphorus insecticides is difficult for decomposition, residual higher, easily cause environmental pollution, progressively forbid recent years at home.In addition at present the domestic novel pesticide that also has some novel amide-types in application progressively, but the production cost of this class novel pesticide and use cost are still relatively high, cannot make peasant accept extensively.
Single insecticide faces and is easier to make insect to produce the problem of resistance in long-term use procedure, and the initiative R&D cycle of noval chemical compound is long, human and material resources, financial resources drop into huge, and at present domestic agricultural chemicals enterprise and research and development institution scarcely possess the ability of initiative new insecticidal compounds.And the R&D cycle of the research relativization compound in agriculture chemical compounding field is shorter, research and development drop into relatively low, select the agricultural chemical compound each other with synergistic effect by a large amount of testing sieves, and successfully develop the environmentally friendly formulations of pesticide, to promoting drug effect, the resistance that reduces residue of pesticide, minimizing insect plays vital effect.But, be not that every kind of agricultural chemicals is all applicable to composite, how to find to have each other the farm chemical ingredients of notable synergistic effect, and be successfully prepared as Multiple Pesticides formulation, be a main direction of studying in current domestic pesticide industry.
Summary of the invention
For above background, in order to meet the needs of pesticide producing, make full use of synergistic effect that two kinds of active component mixtures produce, improve preventive effect, expand insecticidal spectrum, reduce agricultural cost and delay the generation of pest resistance to insecticide, through long-term scientific experiment research, the present invention proposes a kind of Pesticidal combination that contains azoles mite cyanogen and bistrifluron.
Technical solutions according to the invention realize by following measures:
A kind of Pesticidal combination that contains azoles mite cyanogen and bistrifluron, its feature is that this Pesticidal combination is two yuan of mixtures of carrying out as active ingredient taking azoles mite cyanogen and bistrifluron, all the other are the auxiliary element in preparation preparation, wherein the weight ratio of active ingredient azoles mite cyanogen and bistrifluron is 5～50: 50～5, and the chemical structural formula of described bistrifluron is:
，
The chemical structural formula of described azoles mite cyanogen is:
。
In above-described this Pesticidal combination, the weight ratio of active ingredient azoles mite cyanogen and bistrifluron is preferably 5～25: 30～5.
The formulations of pesticide prepared by above-described this Pesticidal combination are aqueous emulsion, microemulsion, suspending agent, wetting powder, water dispersible granules, and in above preparation, the gross weight of active ingredient azoles mite cyanogen and bistrifluron accounts for whole total formulation weight amount 5%～40%.
In above-described preparation formulation, the gross weight of active ingredient azoles mite cyanogen and bistrifluron accounts for whole total formulation weight amount and is preferably 10%～30%.
Above-described a kind of Pesticidal combination that contains azoles mite cyanogen and bistrifluron, in the application for the preparation of in control Lepidoptera class pest and mite pest medicine, is mainly used in preventing and treating Lepidoptera class pest and mite pest.Can prevent and treat vegetables, tealeaves, lepidoptera pest in the various plants such as cotton has: rain moth, casemaking clothes moth, gelechiid, pink bollworm, apple ermine moth, sugarcane moth borer, soybean pod borer, oriental fruit moth, the stupid moth of apple, peach fruit borer, oriental moth, striped rice borer, paddy stem borer, corn borer, millet borer, Oeobia undalis, soybean English snout moth's larva, dichocrocis punctiferalis, pear fruit borer, dioryctria splendidella, diaphania, Noctuidae, tomato moth, sesame noctuid, pink rice borer, mythimna separata, Agrotis, cotton bollworm, cigarette beetle, cotton spark, little bridging worm, melalopha anachoreta, tea bagworm, pear leaf worm, pine caterpillars, tent caterpillar, tea caterpillar, mulberry tussock moth, Sphingidae, greenish brown hawk moth, looper, tea geometrid, mulberry geometrid (Hemerophila atrilineata), biston marginata, mulberry yellow moth, diamond-back moth, beet armyworm, prodenia litura, mealybug etc.The mite pest that can prevent and treat on the plants such as fruit tree, vegetables and tea tree has: pink tea rust mite, tealeaves goitre mite, coffee unguiculus mite, tea tarsonemid, two spotted spider mite, yellow tea mite, Tetranychus cinnabarinus, thorn foot root mite, tomato goitre mite, Polyphagotarsonemus latus Banks, Mite, refreshing Ze Shi tetranychid, bean spider mite, two-spotted spider mite, citrus red mite, citrus red mite, hawthron spider mite, European red mite, omnivorous line mite etc.
The embodiment of the formulation that Pesticidal combination of the present invention can be prepared is above:
Described Pesticidal combination is aqueous emulsion, and the percentage by weight of component is:
Azoles mite cyanogen 5 ~ 50%
Bistrifluron 5 ~ 50%
Emulsifier 5 ~ 15%
Solvent 10 ~ 25%
Cosolvent 5 ~ 10%
Stabilizing agent 2 ~ 10%
Antifreezing agent 1 ~ 5%
Defoamer 0.1 ~ 5%
Thickener 0.1 ~ 2%
Water surplus.
The concrete production stage of this aqueous emulsion is: first former medicine azoles mite cyanogen and bistrifluron, solvent, emulsifier, cosolvent are added together, make to be dissolved into uniform oil phase; Other auxiliary agents such as part water, antifreeze, stabilizing agent are mixed into uniform water; When reactor high speed stirs, oil phase is added to water, slowly add water to 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, make the aqueous emulsion preparation of the Pesticidal combination that contains azoles mite cyanogen and bistrifluron.
When described Pesticidal combination is microemulsion, the percentage by weight of component is:
Azoles mite cyanogen 5 ~ 50%
Bistrifluron 5 ~ 50%
Emulsifier 10 ~ 25%
Antifreezing agent 0.1 ~ 5%
Stabilizing agent 1 ~ 15%
Conventional solvent cosolvent 20 ~ 50%.
The concrete production stage of this microemulsion is: former medicine azoles mite cyanogen, bistrifluron cosolvent are dissolved completely, 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 suspending agent, and the percentage by weight of component is:
Azoles mite cyanogen 5 ~ 50%
Bistrifluron 5 ~ 50%
Dispersant 5 ~ 20%
Antifreezing agent 1 ~ 5%
Thickener 1 ~ 10%
Defoamer 0
.1 ~ 1%
Water surplus.
The concrete production stage of this suspending agent is, first other auxiliary agents are mixed, mix through high speed shear, add again active ingredient azoles mite cyanogen and bistrifluron, ball milling 2 ~ 3 hours in ball mill, make a diameter all below 5 μ m, make the suspending agent preparation of the Pesticidal combination that contains azoles mite cyanogen and bistrifluron of the present invention.
Described miticide composition is wetting powder, and the percentage by weight of component is:
Azoles mite cyanogen 5 ~ 50%
Bistrifluron 5 ~ 50%
Dispersant 3 ~ 10%
Wetting agent 1 ~ 5%
Filler surplus.
The concrete production stage of this wetting powder is: by above-mentioned formula, azoles mite cyanogen, bistrifluron and dispersant, wetting agent and filler are mixed, uniform stirring in stirred tank, after airslide disintegrating mill is pulverized, mixing, can make the wetting powder of the present composition.
Described Pesticidal combination is water dispersible granules, and the percentage by weight of component is:
Azoles mite cyanogen 5 ~ 50%
Bistrifluron 5 ~ 50%
Dispersant 3 ~ 15%
Wetting agent 5 ~ 20%
Disintegrant 1 ~ 5%
Filler surplus.
The concrete production stage of this water dispersible granules is: by above-mentioned formula, azoles mite cyanogen, bistrifluron, dispersant, wetting agent and disintegrant and filler are mixed, pulverize with micro jet, through mediating, then add and in fluidized bed prilling dryer, carry out after granulation, dry screening, through sample analysis, making the water-dispersible grain agent formulation of the Pesticidal combination that contains azoles mite cyanogen and bistrifluron of the present invention.
In above preparation technology, related auxiliary agent is selected from following composition:
Emulsifier is alkylbenzene naphthalene sulfonate, alkylphenol polyoxyethylene phosphate, diphenyl phenol polyethenoxy polyethenoxy ether, styrenated phenol APEO, alkylphenol polyoxyethylene formaldehyde condensation products, diphenyl phenol polyethenoxy polyformaldehyde condensation product, castor oil ethylene oxide adduct and derivative thereof, such as agriculture breast 300, agriculture breast 500, agriculture breast 600, Nongru-700, agriculture breast Sorpl KS, OX2511, NNO, NP series etc., emulsifier can be the mixture of one or more.
Dispersant has one or several the mixture in lignosulfonates, fatty acid amide N methyl taurine sodium salt, alkylphenol polyoxyethylene sulphate, lignosulfite, fatty acid ester sulphate, polyoxyethylene polyoxypropylene block copolymer, alkylphenol polyoxyethylene, fatty alcohol-polyoxyethylene ether.
Wetting agent is one or several the mixture in fatty acid amide N methyl taurine sodium salt, lignosulfonates, alkylphenol polyoxyethylene sulphate, petroleum sodium sulfonate, alkylnaphthalene sulfonate, fatty acid ester sulphate, alkylphenol polyoxyethylene, fatty alcohol-polyoxyethylene ether, lignosulfite, the withered powder of tea, spaonin powder.
Thickener is one or more the mixture in CMC, polyvinyl alcohol, xanthans, gum Arabic, sodium alginate, polyvinylpyrrolidone, bentonite, aluminium-magnesium silicate, gypsum.
Defoamer can be one or more the mixture in organic silicone oil, methyl alcohol, ethanol, epoxidized soybean oil.
Antifreezing agent is one or more the mixture in ethylene glycol, propane diols, glycerine, polyethylene glycol, sorbierite.
Stabilizing agent is one or more the mixture in the phosphate buffer of glycerine, 0.21M or paraffin oil, tributyl phosphate, triphenyl phosphite, BHT, sodium hydrogen phosphate, succinic acid, adipic acid, oxalic acid, borax.
Solvent and cosolvent have one or more the mixture in water, methyl alcohol, ethanol, butanols, ethylene glycol, propane diols, glycerine, polyethylene glycol, acetone, cyclohexanone, pyrrolidones, toluene, dimethylbenzene, ethyl acetate, dimethyl formamide (DMF), dimethyl sulfoxide (DMSO) (DMSO).
Disintegrant can be one or more the mixture in urea, magnesium chloride, aluminium chloride, sodium chloride, ammonium sulfate, bentonite.
Carrier is one or more the mixture in kaolin, diatomite, atlapulgite, White Carbon black, clay, precipitated calcium carbonate, talcum powder, montmorillonite.
In the market efficiently can desinsection, the composition pesticide that can kill again mite is few, comparatively single, and not good to mite pest control efficiency, Pesticidal combination of the present invention has obvious synergistic effect, not only efficient to acarid, and same efficient to other Pests of Tea-Plants, vegetable-crop pest-insect etc., and can obviously reduce effective ingredient consumption, reduce use cost, delay the generation of pest resistance to insecticide; Reduce residue of pesticide, effectively reduce environmental pollution, to lepidopterous insects such as diamond-back moth, beet armyworm, prodenia litura, cotton bollworm, mealybug classes, the mite pest preventive effects such as two spotted spider mite are remarkable, have good promotion prospect.
embodiment:
In order to make object of the present invention, technical scheme and advantage clearer, the present invention describes with following specific embodiment, but the present invention is limited to absolutely not these examples.The following stated is only the good embodiment of the present invention, only for explaining the present invention, can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that all any amendments of making within the spirit and principles in the present invention, be equal to replacement and improvement etc., within all should being included in protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with appended claims.
1, formulation is prepared embodiment:
10% azoles mite cyanogen bistrifluron aqueous emulsion preparation: first former medicine azoles mite cyanogen 3g and bistrifluron 7g, ethylene glycol 15g, diphenyl phenol polyethenoxy polyethenoxy ether 5g, ethyl acetate 5g are added together, make to be dissolved into uniform oil phase; Part water, ethylene glycol 1g, sodium hydrogen phosphate 5g, organic silicone oil 0.3g, sodium alginate 0.1g are mixed into uniform water; When reactor high speed stirs, oil phase is added to water, slowly add water to phase inversion point, open clipper and carry out high speed shear, and add remaining water to 100g, shear about half an hour, form the aqueous emulsion of oil-in-water type, make the aqueous emulsion preparation of the Pesticidal combination that contains azoles mite cyanogen and bistrifluron.
The concrete preparation process of 12% azoles mite cyanogen bistrifluron microemulsion is: former medicine azoles mite cyanogen 5g, bistrifluron 7g spent glycol are dissolved completely, add again the phosphate buffer 5g of styrenated phenol APEO 15g, sorbierite 0.2g, 0.21M, evenly mix, finally add water to supply 100g, after fully stirring, can be made into microemulsion.
The concrete preparation process of 20% azoles mite cyanogen bistrifluron suspending agent is, first mixture 7.5g(sodium alginate 3g, the xanthans 4.5g with xanthans by alkylphenol polyoxyethylene 5.6g, ethylene glycol 2.5g, sodium alginate) epoxidized soybean oil 0.1g mixes, mix through high speed shear, water is supplied 100g, add again active ingredient azoles mite cyanogen 12g and bistrifluron 8g, ball milling 2 ~ 3 hours in ball mill, makes a diameter all below 5 μ m, makes the suspending agent preparation of Pesticidal combination of the present invention.
The concrete preparation process of 15% azoles mite cyanogen bistrifluron wetting powder is: azoles mite cyanogen 10g, bistrifluron 5g and alkylphenol polyoxyethylene 5g, spaonin powder 6.5g are mixed, precipitated calcium carbonate and diatomite are supplied 100g, uniform stirring in stirred tank, after airslide disintegrating mill is pulverized, mixing, can make the wetting powder of Pesticidal combination of the present invention.
The concrete preparation process of 16% azoles mite cyanogen bistrifluron water dispersible granules is: azoles mite cyanogen 8g, bistrifluron 8g, sodium lignin sulfonate 8g, fatty alcohol-polyoxyethylene ether 6g and bentonite 2g are mixed, diatomite and atlapulgite are supplied 100g, pulverize with micro jet, through mediating, then add and in fluidized bed prilling dryer, carry out after granulation, dry screening, through sample analysis, making the water-dispersible grain agent formulation of Pesticidal combination of the present invention.
2, indoor biometrics screening and field experiment:
The method that the present invention adopts indoor bioassay and field trial to combine.If no special instructions, the ratio (comprising percentage) of below mentioning is all mass ratio.
Indoor biometrics:
The synergy test of azoles mite cyanogen and bistrifluron.It is tested object that test adopts two spotted spider mite.
Concrete grammar is:
(1) test medicine:
The former medicine of 96% azoles mite cyanogen, daily output chemical company, the former medicine of 95% bistrifluron, Dong Bao chemical company of Korea S.
First use the former medicine of acetone solution, according to the result of preliminary experiment, two appropriate former medicines are made into 5 different proportionings, then it is stand-by with acetone, each processing to be diluted to respectively to 5 series concentration gradients.
The ratio of 5 azoles mite cyanogen proportioning active ingredients different from bistrifluron is respectively 3
:12,5
:10,7
:8,9
:6,11
:4 to be diluted to respectively 5 series concentration gradients stand-by.
(2) subjects:
Laoshan tea place is picked up from by two spotted spider mite system, gets the basically identical two spotted spider mite adult test of size.
(3) test method:
Adopt dip method that two former medicines are all used to a small amount of acetone solution, then use 0
.1% Tween solution is diluted to into 5 dense solution of equal difference, is diluted in beaker with for subsequent use, and with clear water in contrast.Two spotted spider mite adult basically identical size is flooded to 5S in the liquid that soaks worm cage, be placed in the culture dish that diameter is 9cm after sucking unnecessary liquid, in ware, be placed with fresh blade and add a cover.Every concentration is processed 10, repeats 4 times, establishes blank, in (27 ± 1)
oin C illumination box, keep checking lethality after 24h, it is dead touching polypide nonresponder by pulling needle.Lethality Abbott formula correction, then according to concentration logarithm---lethality probit value is analyzed (Bliss) method, obtains virulence regression equation and puts dead middle amount LC
50value.
After processing, 24h investigation examination worm death condition (judgement is gently to sting without autonomic response with pin for examination worm death standard), records total borer population and dead borer population.
According to survey data, calculate the corrected mortality of each processing.And adopt the abundant method of Sun Yun to calculate the co-toxicity coefficient (CT value) of mixture with reference to NY/T1154.7-2006.If contrast lethality <5%, does not proofread and correct; Contrast lethality, between 5%～20%, is proofreaied and correct by formula 2; Contrast lethality >20%, test need be reformed.
(4) data statistics and analysis
Taking the logarithm value of drug concentration (mg/L) as independent variable X, taking the probit value of corrected mortality as dependent variable Y, set up respectively virulence regression equation formula, adopt DPS software to calculate the LC of single dose and each proportioning mixture
50and mixture co-toxicity coefficient, relatively synergy situation.Calculate LC
50calculate co-toxicity coefficient (CTC) according to the abundant method of Sun Yun.Co-toxicity coefficient CTC, computing formula is as follows: (taking azoles mite cyanogen as standard medicament, its toxicity index is 100)
:
The LC of toxicity index (TI)=azoles mite cyanogen of bistrifluron
50the LC of/bistrifluron
50× 100
The LC of actual toxicity index (azoles mite cyanogen the TI)=azoles mite cyanogen of M
50the LC of/M
50× 100
TI × P bistrifluron of TI × P azoles mite cyanogen+bistrifluron of theoretical toxicity index (TTI)=azoles mite cyanogen of M
TTI × 100 of the azoles mite cyanogen TI/M of co-toxicity coefficient (CTC)=M of M
In formula
:
M is bistrifluron and the mixture of the different proportionings of azoles mite cyanogen
P bistrifluron is bistrifluron shared ratio in mixture
P azoles mite cyanogen is azoles mite cyanogen shared ratio in mixture.
(5) toxicity test result and analysis
Table 1 azoles mite cyanogen, the indoor measurement result of bistrifluron to two spotted spider mite
As can be seen from the table, in the mixture of different proportion, its co-toxicity coefficient is all greater than 120, shows certain synergistic effect, wherein azoles mite cyanogen
:bistrifluron is 7
:the synergistic effect of 8 o'clock is the most obvious, and co-toxicity coefficient is 181.18.Result of the test shows, under indoor conditions, bistrifluron, two kinds of medicaments of azoles mite cyanogen all have higher activity to two spotted spider mite, and the result of the test of different proportion proportioning shows, in active ingredient ratio azoles mite cyanogen
:bistrifluron is 3
:12,5
:10,7
:8,9
:6,11
:4 when dilute respectively, all shows stronger synergistic effect, wherein with azoles mite cyanogen
:bistrifluron is 7
:8 o'clock, synergistic effect was best.And mite pest is had to very high preventive effect, and suggestion is carried out further field control effectiveness test to the mixture preparation of 7: 8 left and right scopes of suitable proportion, to evaluate the practical application effect of its field to acarid insect.
Test example 1: field experiment control beet armyworm test
(1) test method
Test in September 16 to September 26 in 2012 Kaiping City of Guangdong Province suburb truck garden carry out.Tested on September 16th, 2012 and carry out routine to water spray by each processing design concentration.Spraying equipment is WF-16 type knapsack hand sprayer, and 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 when spray medicine.When dispenser, field beet armyworm is 1～2 instar larvae peak period, every 667m
2be 70kg to the water yield.
Duration of test weather is good, and daily mean temperature is 18.5～27.9 DEG C, dispenser fine day on the same day.
(2) investigation method
Press 5 samplings of diagonal in dispenser Qian Mei community, choose wild cabbage 2～3 strains (depending on insect density) of Beet Armyworm Eggs and larva at every.Statistics is demarcated beet exigua larvae head number in strain, using this as dispenser before insect population radix.After dispenser the 3rd, 7,10d investigates respectively the beet exigua larvae number of determining residual survival in strain, to proofread and correct insect population decline rate as control efficiency.
(3) drug effect computational methods.
Insect population decline rate (%)=
× 100;
Correction preventive effect (%)=
× 100.
(4) poisoning investigation method
Duration of test is observed each processing community wild cabbage well-grown, all finds no poisoning phenomenon and occurs.
(5) field control effectiveness test result of the test
Table 2 treatment agent control Laphygma exigua Hubner field control effectiveness test result
As can be seen from Table 2, the Mixed Pharmacy of different proportion, carries out field experiment by different consumptions, and after medicine, it is all better than contrasting medicament to the control efficiency of Laphygma exigua Hubner, 7% azoles mite cyanogen+8% bistrifluron control beet armyworm quick-acting is fast, efficiency time is long, and control efficiency is good, and after medicine, the insecticidal effect of 10 days reaches respectively, 88.98%, 89.32%, 90.37%, insecticidal effect increases progressively along with the increase of consumption.Test factually observation, each medication processing all without poisoning, also finds that it also has good control efficiency to insects such as diamond-back moths to wild cabbage simultaneously.Suggestion dispenser rests in before 3 ages of beet exigua larvae period, requires even spraying when dispenser, blade face, blade back even medicine, the suggestion medicament different from other mechanisms of action is used alternatingly, to delay the generation of pest resistance to insecticide.
test example 2: field experiment control two spotted spider mite
(1) test method
Test selects Guizhou Can Ye research institute citrus orchard to carry out.Kind is citrus reticulata“Unshiu”, field planting 25 years.Spray medicine the morning 23 day May in 2012 that is peak period citrus red mite, by working concentration, reagent agent is diluted water, according to a conventional method tree crown is sprayed with workers and peasants-16 type knapsack sprayer, being sprayed onto blade at Citrus leaf positive and negative has and drips on a small quantity for degree, contrast spray equivalent clear water.
(2) investigation method
Carry out insect density investigation respectively at 3d, 7d, 10d before dispenser and after dispenser, 4 directions of East, West, South, North of setting in each community are respectively selected 1 branch, 5 blades of every tip mark, altogether the movable mite quantity on 20 blades of 4 tips of investigation records.By following formula calculating insect population decline rate and control efficiency.
(3) drug effect computational methods
Mite number × 100% alive before insect population decline rate (%)=(the mite number of living after mite number one medicine of living before medicine)/medicine
Control efficiency (%)=[(process decline rate one and contrast decline rate)/(100-contrast decline rate)] × 100%.
(4) poisoning investigation method
After medicine, 3,7,10 d observe Ci trus growth situations, range estimation medicament to oranges and tangerines all without poisoning.
(5) field control effectiveness test result of the test
The result of the test of table 3 treatment agent control citrus red mite
As can be seen from Table 3, the Mixed Pharmacy of different proportion, carry out field experiment by different consumptions, after medicine, it obviously is all better than contrasting medicament to the control efficiency of citrus red mite, 3% azoles mite cyanogen+7% bistrifluron insecticidal effect of 7 days after medicine be respectively 91.77%, 94.26% and insecticidal effect after 91.91%, 10 day be respectively 89.90%, 88.83% and 92.32%, quick-acting is better, lasting period is longer, and miticidal effect increases progressively along with the increase of consumption.According to field range estimation, within the scope of test dose, Ci trus growth is normal, and the poisoning phenomenon to oranges and tangerines does not all appear in each treatment agent, illustrates that it is safe to oranges and tangerines.In process of the test, testing crew finds that it also has favorable effect to the insect such as phyllocnistis citrella stainton, arrowhead scales, advises that the insecticide different from the mechanism of action mixes use to delay the generation of pest resistance to insecticide.
By above raw survey and field experiment, we can know that the present invention contains azoles mite cyanogen and the composite Pesticidal combination of bistrifluron, to the acarid such as two spotted spider mite, Unaspis yanonensis, the lepidoptera pests such as beet armyworm show good control efficiency, to target crop safety, compared with single dose, Pesticidal combination of the present invention has mechanism of action uniqueness, the advantages such as consumption is few, and quick-acting is good, the lasting period is long.So; there is great social effect in research and development of the present invention and popularization; can produce very large economic worth, the increasing both production and income of peasant household and the protection tool of local environment of the vegetables such as land for growing field crops, the beet main producing regions such as fruit main producing region, tealeaves such as vast oranges and tangerines are of great significance.
Claims (5)
1. a Pesticidal combination that contains azoles mite cyanogen and bistrifluron, it is characterized in that: this Pesticidal combination is two yuan of mixtures of carrying out as active ingredient taking azoles mite cyanogen and bistrifluron, all the other are the auxiliary element in preparation preparation, wherein the weight ratio of active ingredient azoles mite cyanogen and bistrifluron is 5～50: 50～5, and the chemical structural formula of described bistrifluron is:
，
The chemical structural formula of described azoles mite cyanogen is:
。
2. a kind of Pesticidal combination that contains azoles mite cyanogen and bistrifluron according to claim 1, is characterized in that: in this Pesticidal combination, the weight ratio of active ingredient azoles mite cyanogen and bistrifluron is 5～25: 30～5.
3. a kind of Pesticidal combination that contains azoles mite cyanogen and bistrifluron according to claim 1, it is characterized in that: the formulations of pesticide prepared by this Pesticidal combination are aqueous emulsion, microemulsion, suspending agent, wetting powder, water dispersible granules, in above preparation, the gross weight of active ingredient azoles mite cyanogen and bistrifluron accounts for whole total formulation weight amount 5%～40%.
4. a kind of Pesticidal combination that contains azoles mite cyanogen and bistrifluron according to claim 3, is characterized in that: in described preparation formulation, the gross weight of active ingredient azoles mite cyanogen and bistrifluron accounts for whole total formulation weight amount 10%～30%.
According to a kind of Pesticidal combination that contains azoles mite cyanogen and bistrifluron described in claim 1 or 2 or 3 or 4 in the application for the preparation of in control Lepidoptera class pest and mite pest medicine.
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| CN103743850B (en) * | 2014-01-21 | 2015-09-02 | 崔淑华 | A kind of assay method of nitrile pyrrole mite ester residual quantity |
| CN113796384B (en) * | 2021-10-27 | 2023-06-30 | 青岛海利尔生物科技有限公司 | Insecticidal composition containing bistrifluron and chlorfenapyr |
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| JP2011126837A (en) * | 2009-12-21 | 2011-06-30 | Nippon Nohyaku Co Ltd | Agricultural and horticultural pest-controlling agent composition, and method for applying them |
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