A kind of Pesticidal combination that contains azoles mite cyanogen and bistrifluron
Technical field
The present invention relates to the agriculture chemical compounding technical field, be specifically related to a kind of Pesticidal combination that contains azoles mite cyanogen and bistrifluron.
Technical background
Azoles mite cyanogen (cyenopyrafen) is again nitrile pyrrole mite ester, and by the exploitation of daily output chemical company, mechanism of action, for after tert-butyl ester hydrolysis, the mitochondrial protein Complex II being shown to outstanding inhibitory action, hinders the 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 the 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 react with pivaloyl chloride again and make 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; the 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 the 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 the 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 can't generally apply and produce, and causes peasant's drug cost high.At present the domestic control to the Lepidoptera on 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 be prevented and treated 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 more domestic novel pesticide that novel amide-types are also arranged in application progressively, but the production cost of this class novel pesticide and use cost are still relatively high, can't make the 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 that there is each other synergistic effect by a large amount of testing sieves, and develop goes out the environmentally friendly formulations of pesticide, to promoting drug effect, the resistance that reduces residue of pesticide, minimizing insect plays vital effect.Yet, be not that every kind of agricultural chemicals all is applicable to composite, how to find to have each other the farm chemical ingredients of notable synergistic effect, and successfully be prepared as the 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, take full advantage of two kinds of active components be mixed produced synergistic effect, improve preventive effect, enlarge insecticidal spectrum, reduce agricultural cost and delay the generation of pest resistance to insecticide, scientific experiment research through long-term, 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 characteristics be this Pesticidal combination be take two yuan that azoles mite cyanogen and bistrifluron carry out as active ingredient be mixed, all the other are the auxiliary element in the preparation preparation, wherein the percentage by weight 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 percentage by weight of active ingredient azoles mite cyanogen and bistrifluron is preferably 5~25: 30~5.
The formulations of pesticide can prepare 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, be mainly used in preventing and treating Lepidoptera class pest and mite pest.
Can prevent and treat vegetables, tealeaves, lepidoptera pest on 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, the 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 formulation can prepare by above Pesticidal combination of the present invention is:
Described Pesticidal combination is aqueous emulsion, and the percentage by weight of component is:
The concrete production stage of this aqueous emulsion is: at 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 to uniform water; When the reactor high speed stirs, oil phase is added to water, slowly add water to the 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:
The concrete production stage of this microemulsion is: former medicine azoles mite cyanogen, bistrifluron are dissolved fully 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 suspending agent, and the percentage by weight of component is:
The concrete production stage of this suspending agent is, first other auxiliary agents are mixed, through high speed shear, mix, add again active ingredient azoles mite cyanogen and bistrifluron, in ball mill, ball milling is 2~3 hours, 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:
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, mixing after airslide disintegrating mill is pulverized, can make the wetting powder of the present composition.
Described Pesticidal combination is water dispersible granules, and the percentage by weight of component is:
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, with micro jet, pulverize, through mediating, then add in the fluidized bed prilling dryer and carry out granulation, dry screening by sample analysis, make 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.
The mixture of one or more in the phosphate buffer that stabilizing agent is 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 the 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, effective environmental contamination reduction, 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, and promotion prospect is preferably arranged.
Embodiment
In order to make purpose 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 present invention embodiment preferably, 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 modifications 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 prepares embodiment:
10% azoles mite cyanogen bistrifluron aqueous emulsion preparation: at 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 to uniform water; When the reactor high speed stirs, oil phase is added to water, slowly add water to the 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 fully, the phosphate buffer 5g that adds again 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, through high speed shear, mix, water is supplied 100g, add again active ingredient azoles mite cyanogen 12g and bistrifluron 8g, in ball mill, ball milling is 2~3 hours, 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, mixing after airslide disintegrating mill is pulverized, 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, with micro jet, pulverize, through mediating, then add in the fluidized bed prilling dryer and carry out granulation, dry screening by sample analysis, make 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 of below mentioning (comprising percentage) 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, Korea S Dong Bao chemical company.
First use the former medicine of acetone solution, according to the result of preliminary experiment, two appropriate former medicines are made into to 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, and 7:8,9:6, it is stand-by that 11:4 is diluted to respectively 5 series concentration gradients.
(2) subjects:
The 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 be diluted to into 5 dense solution of equal difference with 0.1% Tween solution, be diluted in beaker with standby, and with clear water in contrast.The two spotted spider mite adult that size is basically identical is flooded 5S in the liquid that soaks the worm cage, is placed in the culture dish that diameter is 9cm after sucking unnecessary liquid, is placed with fresh blade in ware and adds a cover.Every concentration is processed 10, repeats 4 times, establishes blank, in (27 ± 1) ℃ illumination box, keeps checking lethality after 24h, and it is dead touching the polypide nonresponder by pulling needle.Lethality Abbott formula correction, then according to the concentration logarithm---the 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), record total borer population and dead borer population.
According to survey data, calculate the corrected mortality that each is processed.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%, do not proofread and correct; The contrast lethality, between 5%~20%, is proofreaied and correct by formula 2; The contrast lethality > 20%, test need be reformed.
(4) data statistics and analysis
The logarithm value of drug concentration (mg/L) of take is independent variable X, and the probit value of corrected mortality of take is dependent variable Y, sets up respectively the virulence regression equation formula, adopts 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: (take azoles mite cyanogen as the standard medicament, its toxicity index is 100):
The LC of the toxicity index of bistrifluron (TI)=azoles mite cyanogen
50the LC of/bistrifluron
50* 100
The LC of the actual toxicity index of M (azoles mite cyanogen TI)=azoles mite cyanogen
50the LC of/M
50* 100
The TI of the TI of the theoretical toxicity index (TTI) of M=azoles mite cyanogen * P azoles mite cyanogen+bistrifluron * P bistrifluron
The TTI of the azoles mite cyanogen TI/M of the co-toxicity coefficient of M (CTC)=M * 100
In formula:
M is bistrifluron and the mixture of the different proportionings of azoles mite cyanogen
The 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 bistrifluron indoor measurement result to two spotted spider mite
As can be seen from the table, in being mixed of different proportion, its co-toxicity coefficient all is greater than 120, shows certain synergistic effect, wherein azoles mite cyanogen: synergistic effect when bistrifluron is 7:8 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, 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, when 11:4 dilutes respectively, all show stronger synergistic effect, wherein take azoles mite cyanogen: bistrifluron is during as 7:8, and synergistic effect is 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 estimate the practical application effect of its field to the 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, 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 the routine spraying, makes every effort to evenly thoughtful during the spray medicine.During dispenser, the field beet armyworm is 1~2 instar larvae peak period, every 667m
2to the water yield, be 70kg.
Duration of test weather is good, and daily mean temperature is 18.5~27.9 ℃, dispenser fine day on the same day.
(2) investigation method
Press 5 samplings of diagonal in dispenser Qian Mei community, every wild cabbage 2~3 strains (depending on insect density) of choosing Beet Armyworm Eggs and larva.Statistics is demarcated beet exigua larvae head number in strain, using this as dispenser before the insect population radix.After dispenser the 3rd, 7,10d investigates respectively the beet exigua larvae number of determining residual survival in strain, using and proofread and correct the insect population decline rate as control efficiency.
(3) drug effect computational methods.
Insect population decline rate (%)=(survival larva number after medicine prelarva radix-medicine)/medicine prelarva radix * 100;
Proofread and correct preventive effect (%)=(treatment region insect population decline rate-blank district insect population decline rate)/(100-blank district insect population decline rate) * 100;
(4) poisoning investigation method
Duration of test is observed and is respectively processed community wild cabbage well-grown, all finds no the 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, carry out field experiment by different consumptions, and after medicine, its control efficiency to Laphygma exigua Hubner all is better than contrasting medicament, 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 control efficiency preferably to insects such as diamond-back moths to wild cabbage simultaneously.The suggestion dispenser rests in beet exigua larvae before 3 ages period, requires even spraying during dispenser, blade face, blade back even medicine, advise that the 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”, and field planting is 25 years.Sprayed medicine the morning 23 day May in 2012 that is peak period citrus red mite, by working concentration, reagent agent is diluted water, with workers and peasants-16 type knapsack sprayer, according to a conventional method tree crown is sprayed, being sprayed onto blade at the Citrus leaf positive and negative has and drips on a small quantity for degree, contrast spray equivalent clear water.
(2) investigation method
Carry out the insect density investigation respectively at 3d, 7d, 10d before dispenser and after dispenser, 4 directions of the East, West, South, North of setting in each community are respectively selected 1 branch, 5 blades of every tip mark, the movable mite quantity on 20 blades of 4 tips of investigation records altogether.Calculate insect population decline rate and control efficiency with following formula.
(3) drug effect computational methods
Mite number alive * 100% before insect population decline rate (%)=(the mite number of living after the several medicines of mite of living before medicine)/medicine
Control efficiency (%)=[(processing decline rate one contrast decline rate)/(100-contrast decline rate)] * 100%
(4) poisoning investigation method
After medicine 3,7,10d observes the Ci trus growth situation, the 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, its control efficiency to citrus red mite obviously all is better than contrasting medicament, the insecticidal effect that 3% azoles mite cyanogen+7% bistrifluron insecticidal effect of 7 days after medicine was respectively after 91.77%, 94.26% and 91.91%, 10 day is respectively 89.90%, 88.83% and 92.32%, and quick-acting is better, lasting period is longer, and miticidal effect increases progressively along with the increase of consumption.According to the field range estimation, in the test dose scope, 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 insects 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 giving birth to, survey and field experiment, we can know that the present invention contains azoles mite cyanogen and the composite Pesticidal combination of bistrifluron, to acarids such as two spotted spider mite, Unaspis yanonensis, the lepidoptera pests such as beet armyworm show good control efficiency, to the target crop safety, with single dose, to compare, 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; in research and development of the present invention and popularization, great social effect is arranged; can produce very large economic worth, the increasing both production and income of the peasant household of the vegetables main producing regions such as the lands for growing field crops such as fruit main producing region, tealeaves, beet such as vast oranges and tangerines and the protection tool of local environment are of great significance.