CN102047915A - Insecticidal composition containing thiacloprid amide - Google Patents
Insecticidal composition containing thiacloprid amide Download PDFInfo
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Abstract
The invention relates to an insecticidal composition in the field of compound pesticides. The effective components of the insecticidal composition are a combination of thiacloprid amide and spinosad and a combination of thiacloprid amide and Bacillus thuringiensis, respectively, wherein the ratio of the weight percentage of thiacloprid amide to the weight percentage of spinosad is (1 to 80):(80 to 1), preferably (1 to 40):(40 to 1); and the ratio of the weight percentage of thiacloprid amide to the weight percentage of Bacillus thuringiensis is (1 to 70):(70 to 0.1), preferably (5 to 40):(40 to 1). The insecticidal composition can be processed in the form of an emulsifiable concentrate, a suspension, a microcapsule suspension, a wettable powder and a water dispersible granule, by the known methods in the prior art. The insecticidal composition is significant in synergistic effect of controlling diamondback moth, beet armyworm, cotton bollworm, common cutworm, stem borer and other Lepidoptera pests.
Description
Technical field
The present invention relates to the agriculture chemical compounding technical field, be specifically related to a kind of contain the thiophene insect amide have a synergistic effect Pesticidal combination, its active ingredient is one or two yuan of any in thiophene insect amide and pleocidin or bacillus thuringiensis,Bt compounded combination.
Background technology
The thiophene insect amide is a kind of novel adjacent heterocycle benzamide compound.Have very strong permeability, medicament can enter into xylem by stem's epidermal cell.According to test, this medicament has fabulous preventive effect for lepidoptera pest, and is long for the insect pest control time.Have higher selectivity simultaneously, for the beneficial organism low toxicity, environmentally safe.
It is a kind of macrolides Nuisanceless high-efficient biological insecticides that extract in thorn sugared many born of the same parents bacterium (Saccharopolyspora spinosa) zymotic fluid that pleocidin, pleocidin have another name called multiple killing teichomycin (Spinosad).The mode of action novelty of pleocidin can sustained activation target insect acetylcholine nicotine receptor, but its binding site is different from nicotine and Imidacloprid.Can make insect benumb rapidly, paralyse, cause death at last.Its desinsection speed can compare favourably with chemical pesticide.Safe, and do not have the biological insecticides that cross resistance is low toxicity, efficient, low-residual with present common insecticide, existing insecticidal properties efficiently has again the characteristic of beneficial insect and mammalian safe being arranged, the most suitable pollution-free vegetable, fruit production application.It is the insecticide of a kind of low toxicity, efficient, wide spectrum.
Bacillus thuringiensis,Bt, bacillus thuringiensis,Bt claim thuringiensis again, English name: Bacillus thuringiensis (B.t.).Biotrol BTV is a kind of microorganism formulation that utilizes the bacillus thuringiensis,Bt bacterium for killing insect to produce through fermented and cultured.Bacillus thuringiensis,Bt survives in soil and water with a kind of form of biological bacterium under nature.This bacterium for killing insect produces the brood cell and forms a kind of archon in growth and development process, examine under a microscope, and normally irregular diamond crystal is called parasporal crystal.After insect had been nibbled parasporal crystal and gemma, in the alkaline environment, the parasporal crystal dissolving discharged the toxin that lepidopterous larvae is had strong toxic action in the intestines of insect.This toxin makes the middle enteroparalysis of larva, presents poisoning symptom, and anorexia is malfunctioning to the contact irritant reaction, apocleisis, and vomiting, diarrhoea, action is moved back slow, and the death of insect has been quickened in health atrophy or curling.Use thiophene insect amide or pleocidin or bacillus thuringiensis,Bt separately, exist cost bigger, quick-acting or lasting effect are poor, and shortcomings such as easily producing resistance is used in single agent.Good in order to develop quick-acting and lasting effect, lower-cost agricultural chemicals, we filter out and carry out compositely one of arbitrarily in thiophene insect amide and pleocidin or the bacillus thuringiensis,Bt on the basis of lab screening and field trial, have obvious synergistic effect.And about composite Pesticidal combination one of any in thiophene insect amide and pleocidin or the bacillus thuringiensis,Bt and use that still nobody reported at present.
Summary of the invention
Based on above situation, the object of the present invention is to provide a kind of agricultural insecticide composition, this Pesticidal combination it is characterized in that with (A) thiophene insect amide and (B) pleocidin and (C) bacillus thuringiensis,Bt be that active ingredient is mixed, the control of lepidoptera pests such as diamond-back moth, prodenia litura, cotton bollworm, beet armyworm, striped rice borer has good synergistic effect.
Pesticidal combination of the present invention is characterized in that the mass percent example of effective constituents A and B is 1～80: 80～1.
Pesticidal combination of the present invention is characterized in that the mass percent example of effective constituents A and C is 1～70: 70～0.1.
Pesticidal combination of the present invention is characterized in that through the toxicity test experiment, the mass percent example of effective constituents A and B is preferably 1～40: 40～1.
Pesticidal combination of the present invention is characterized in that through the toxicity test experiment, the mass percent example of effective constituents A and C is preferably 5～40: 40～1.
The formulation that described Pesticidal combination of the present invention can be prepared according to the known method of those skilled in the art of the present technique is missible oil, suspending agent, micro-capsule suspension, wetting powder, water dispersible granules.
Described thiophene insect amide and the pleocidin gross mass content in preparation is 1%-90%, preferred 10%-50%.
Described thiophene insect amide and the bacillus thuringiensis,Bt gross mass content in preparation is 1%-90%, preferred 10%-50%.
The formulation specific embodiments is as follows:
One of technical scheme of the present invention, described Pesticidal combination are cream preparation, and the mass percent of component is:
Effective constituents A 1～80%
Active ingredient B or C 0.1～70%
Conventional emulsifier 10～30%
Conventional solvent 20～50%
Conventional synergist 1～5%
The concrete production stage of this cream preparation adds emulsifier, the synergist back that stirs after the dissolving fully again and becomes the oily liquids of transparent and homogeneous for earlier effective constituents A, B or C being added in the solvent, and can promptly can be made into the cream preparation of the present composition.
Two of technical scheme of the present invention, described Pesticidal combination are suspending agent, and the percentage by weight of component is:
Effective constituents A 1～80%
Active ingredient B or C 0.1～70%
Dispersant 5～20%
Antifreezing agent 1～5%
Thickener 0.1～2%
Defoamer 0.1～0.8%
Penetrating agent 0～10%
PH value conditioning agent 0.1～5%
Water surplus
The concrete production stage of this suspending agent is earlier other auxiliary agents to be mixed, and mixes through high speed shear, adds effective constituents A, B or C, and abrading-ball is 2～3 hours in ball crusher, makes a diameter all below 5mm, promptly can be made into the suspending agent preparation of the present composition.
Three of technical scheme of the present invention, described Pesticidal combination is a micro-capsule suspension, the percentage by weight of component is:
Effective constituents A 1～80%
Active ingredient B or C 0.1～70%
Urea 5～20%
Formaldehyde 10～30%
Emulsifying dispersant 5～20%
Antifreezing agent 1～5%
Thickener 0.1～2%
Defoamer 0.1～0.8%
Water surplus
In the there-necked flask of agitating device is housed, add urea and formaldehyde (amount of substance ratio be about 1: 1.5～2.0), about pH value to 8～9, be warming up to 70～80 ℃ then, react and obtain stable pollopas performed polymer with the sodium hydroxide solution regulator solution.The former drug solns of getting a certain amount of effective constituents A Bifenazate and active ingredient B and adds emulsifying dispersant in solution in cyclohexane, follow vigorous stirring, and being made into the aqueous solution that contains emulsifying dispersant is the O/W type stable emulsion of water.Above-mentioned pollopas performed polymer is added in the emulsion, regulate the pH value, polymerization reaction take place under the acid catalysis condition is wrapped oil phase substance, forms microcapsule granule.Slowly heat up, solidify, temperature is controlled at 40～50 ℃, hardening time 1h.Select to add an amount of auxiliary agent, can obtain stable micro-capsule suspension.
Four of technical scheme of the present invention, described Pesticidal combination is a wetting powder, the percentage by weight of component is:
Effective constituents A 1～80%
Active ingredient B 0.1～50%
Dispersant 3～10%
Wetting agent 1～5%
The filler surplus.
The concrete production stage of this wetting powder is: by above-mentioned prescription effective constituents A, B and dispersant, wetting agent and filler are mixed, in stirred tank, evenly stir, behind airslide disintegrating mill, mixing, promptly can be made into the wetting powder of the present composition.
Five of technical scheme of the present invention, described Pesticidal combination are water dispersible granules, and the percentage by weight of component is:
Effective constituents A 1～80%,
Active ingredient B 0.1～50%
Dispersant 3～10%
Wetting agent 1～10%
Disintegrant 1～5%
The filler surplus
The concrete production stage of this water dispersible granules is: by above-mentioned prescription effective constituents A, B and dispersant, wetting agent, disintegrant and filler are mixed, pulverize with micro jet, through mediating, add then and carry out granulation, drying, screening in the fluidized bed prilling dryer after sample analysis, promptly can be made into the water dispersible granules of the present 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, for example farming breast 300, farming breast 500, farming breast 600, Nongru-700, agricultural newborn SorplKS, OX2511, NNO, NP series etc., emulsifier can be one or more mixture
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, the 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, the spaonin powder.
Thickener is one or more the mixture in CMC, polyvinyl alcohol, xanthans, gum Arabic, sodium alginate, polyvinylpyrrolidone, bentonite, aluminium-magnesium silicate, the gypsum.
Penetrating agent is one or both the mixture among Laurocapram, the JFC.
Defoamer can be one or more the mixture in organic silicone oil, methyl alcohol, ethanol, the epoxidized soybean oil.
Antifreezing agent is one or more the mixture in ethylene glycol, propane diols, glycerine, polyethylene glycol, the sorbierite.
PH value conditioning agent is one or more the mixture in sodium hydroxide, potassium hydroxide, ammoniacal liquor, hydrochloric acid, acetic acid, phosphoric acid or the citric acid.
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), the dimethyl sulfoxide (DMSO) (DMSO).
Disintegrant can be one or more the mixture in urea, magnesium chloride, aluminium chloride, sodium chloride, ammonium sulfate, the bentonite.
Carrier is one or more the mixture in kaolin, diatomite, atlapulgite, white carbon black, clay, precipitated calcium carbonate, talcum powder, the montmorillonite.
Pesticidal combination of the present invention has obvious synergistic effect, can reduce effective ingredient consumption, delays the generation of pest resistance to insecticide, and can be used for the improvement of resistant insect.Be particularly suitable for being used to prevent and treat the lepidoptera pest such as diamond-back moth, prodenia litura, cotton bollworm, beet armyworm, striped rice borer of vegetables.This invention can significantly remedy pleocidin and the bacillus thuringiensis,Bt deficiency at the quick-acting fermentation, accomplishes that quick-acting and lasting effect take into account.
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 only limits to these examples absolutely not.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) all is a mass ratio.
The different proportioning co-toxicities of thiophene insect amide with pleocidin or bacillus thuringiensis,Bt
(1) reagent agent
The former medicine of 96% thiophene insect amide, the former medicine of 98.3% pleocidin, the former medicine of 89% bacillus thuringiensis,Bt, above-mentioned former medicine provides by Qingdao Hailir Pesticides and Chemical Co., Ltd..
(2) for examination worm source
Thiophene insect amide+pleocidin is for examination worm source: indoor Turnip Sprouts are raised the third-instar larvae of the diamond-back moth in 10 generations continuously, temperature (25 ± 2) ℃, relative moisture 50% ± 4%, periodicity of illumination 14/10h (L/D).
Thiophene insect amide+bacillus thuringiensis,Bt is for examination worm source: the indoor beet armyworm of for many generations raising, indoor conditions: temperature (26 ± 2) ℃.Relative moisture 70% ± 5%, periodicity of illumination 16/8h (L/D).
(3) single agent assay method
Adopt dip method respectively with two groups of former medicines all with the small amount of acetone dissolving, be diluted to into 5 dense solution of equal difference again with 0.1% Tween solution, be diluted in the beaker with standby, and in contrast with clear water.
Thiophene insect amide+pleocidin: with of the same size three age diamondback moth larvae in the soup that soaks the worm cage, flood 5S, inhale and to go to be placed in the culture dish that diameter is 9cm behind the unnecessary soup, be placed with fresh cabbage leaves in the ware and add a cover.Every concentration is handled 10, repeats 4 times.If blank.Keep in (27 ± 1) o C illumination box checking lethality behind the 24h that it is dead touching the polypide nonresponder with group pin.Lethality Abbott formula correction, again according to the concentration logarithm---the lethality probit value is analyzed (Bliss) method, obtains virulence regression equation and puts dead middle amount LC
50Value.
Thiophene insect amide+bacillus thuringiensis,Bt: with writing brush the beet exigua larvae at 3 initial stages in age of physiological status unanimity is swept lightly and to soak in the worm device, to soak the worm device immerses in the soup, shake gently, take out behind the 5s, wash dried polypide and unnecessary peripherally soup with blotting paper rapidly.It is 26 ℃ that larva after the processing places temperature, and relative moisture is in 70% the intelligent insectary.Every concentration repeats 3 times, and 20 larvas of every repetition are established blank simultaneously, and is doomed dead respectively at 48h inspection behind the medicine, calculates lethality, corrected mortality, obtains virulence regression equation and calculate LC
50The control group lethality is being efficiency test below 10%.
(4) the joint toxicity measuring method of different proportionings
According to the toxicity test result of single agent, be 15% quality than pleocidin by active ingredient: the thiophene insect amide was respectively 1.5: 13.5,1.3: 13.7,1.1: 13.9,0.9: 14.1,0.7: 14.3;
According to preliminary experiment both total active ingredient 15% is set, set ratio is that m (bacillus thuringiensis,Bt): m (thiophene insect amide) was respectively 5: 10,6: 9, and 7: 8,8: 7,9: 6.
Adopt above-mentioned 1.3 methods to carry out toxicity test, calculate LC
50, and press the abundant method of Sun Yun and calculate co-toxicity coefficient (CTC).Co-toxicity coefficient CTC, computing formula is as follows: (with the thiophene insect amide is the standard medicament, and its toxicity index is 100):
The LC of the toxicity index of pleocidin or bacillus thuringiensis,Bt (TI)=thiophene insect amide
50The LC of/pleocidin or bacillus thuringiensis,Bt
50* 100
The LC of actual toxicity index (ATI)=thiophene insect amide of M
50The LC of/M
50* 100
TI * P thiophene insect amide+the pleocidin of theoretical toxicity index (TTI)=thiophene insect amide of M or TI * P pleocidin or bacillus thuringiensis,Bt of bacillus thuringiensis,Bt
TTI * 100 of the ATI/M of the co-toxicity coefficient of M (CTC)=M
In the formula:
M is pleocidin or bacillus thuringiensis,Bt and the mixture of the different proportionings of thiophene insect amide
P pleocidin or bacillus thuringiensis,Bt are pleocidin or bacillus thuringiensis,Bt shared ratio in mixture
P thiophene insect amide is thiophene insect amide shared ratio in mixture
(5) toxicity test result and analysis
Table 1 thiophene insect amide, pleocidin are to the indoor measurement result of diamond-back moth
As can be seen from the table, in being mixed of different proportion, its co-toxicity coefficient shows certain synergistic effect, wherein pleocidin all greater than 120: the thiophene insect amide is that 1.1: 13.9 synergistic effect is the most obvious, and co-toxicity coefficient is 186.38.Result of the test shows, pleocidin, two kinds of medicaments of thiophene insect amide all have higher activity to diamond-back moth under indoor conditions, the result of the test of different proportion proportioning shows, by the active ingredient pleocidin: the thiophene insect amide is 1.5: 13.5,1.3: 13.7,11: 13.9,0.9: 14.1,0.7: 14.3 o'clock, all show stronger synergistic effect, wherein with pleocidin: the thiophene insect amide is 1.1: 13.9 o'clock, and synergistic effect is best.
Table 2 thiophene insect amide, bacillus thuringiensis,Bt are to the indoor measurement result of beet armyworm
As can be seen from the table, in being mixed of different proportion, its co-toxicity coefficient shows certain synergistic effect, wherein bacillus thuringiensis,Bt all greater than 120: the thiophene insect amide is that 6: 9 synergistic effect is the most obvious, and co-toxicity coefficient is 146.95.Result of the test shows, bacillus thuringiensis,Bt, two kinds of medicaments of thiophene insect amide all have higher activity to beet armyworm under indoor conditions, the result of the test of different proportion proportioning shows, in active ingredient ratio bacillus thuringiensis,Bt: the thiophene insect amide is 5: 10,6: 9,7: 8,8: 7,, all show stronger synergistic effect at 9: 6 o'clock, wherein with bacillus thuringiensis,Bt: the thiophene insect amide is 6: 9 o'clock, and synergistic effect is best.Suggestion is carried out further field control effectiveness test to the mixture preparation of 6: 9 left and right sides scopes of suitable proportion, to estimate its field practical application effect.
Test example 1: field trial control diamond-back moth
(1) application method
Test is sprayed medicine 1 time altogether, and the dispenser date is July 3.This moment, a variety of Chinese cabbage had 5-6 sheet leaf.The diamondback moth larvae major part was in for 2～3 length of times.Weather is cloudy calm during the spray medicine.With the agricultural board level pressure of profit knapsack hand sprayer each is handled even spraying, leave dual sides all requires to be sprayed with the effect soup.Every sub-district soup 2L.
(2) investigation method
Investigate each sub-district and fix 15 strain a variety of Chinese cabbages as the investigation strain. write down the larva quantity on whole blades.Investigate the insect population radix before spraying medicine, respectively 3,7 days and investigation in 10 days borer population alive behind the spray medicine.This test is investigated 4 times altogether.
(3) drug effect computational methods
The insect population borer population * 100 that lives before rate (%)=(borer population of living after the borer population-dispenser of living before the dispenser)/dispenser that goes down
Preventive effect (%)=(the treatment region insect population rate of going down-check plot insect population go down rate)/(100-check plot insect population go down rate) * 100
(4) poisoning investigation method
Continuous 10d range estimation medicament does not have poisoning to produce a variety of Chinese cabbage well-grown to crop after the dispenser.
(5) field control effectiveness test result
Table 3 is handled chemical control diamond-back moth field control effectiveness test result
As can be seen from Table 3, the Mixed Pharmacy of different proportion, carry out field experiment by different consumptions, its control efficiency to the wild cabbage diamond-back moth all is better than contrasting medicament behind the medicine, 15% (pleocidin: the thiophene insect amide) (1.1: 13.9) behind medicine 10 days, insecticidal effect is respectively 86.69%, 90.20% and 92.94%, and insecticidal effect increases along with the increase of consumption, and difference reaches extremely remarkable between each consumption processing insecticidal effect.According to field range estimation, in the test dose scope, plant growth is normal, and each is handled medicament and poisoning phenomenon to a variety of Chinese cabbage all do not occur, illustrates that it is safe to a variety of Chinese cabbage.Advise that the insecticide different with the mechanism of action mixes use to delay the generation of pest resistance to insecticide.
Test example 2: field experiment control beet armyworm test
(1) test method
Tested on October 8th, 2010 to October 18 and carry out at Kaiping City, Guangdong Province suburb truck garden.Tested on October 8th, 2010 and carry out routine to water spray by each processing design concentration.Spraying equipment is a 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.The field beet armyworm is 1～2 instar larvae peak period during dispenser.Every 667m
2To the water yield is 70kg.
Duration of test weather is good, and daily mean temperature is 18.0～26.8 ℃.Dispenser fine day on the same day.
(2) investigation method
Before dispenser in every sub-district by 5 samplings of diagonal. every wild cabbage 2～3 strains (deciding) of choosing beet armyworm ovum and larva on insect density.Statistics is demarcated beet exigua larvae head number in the strain. with this as dispenser before the insect population radix.In after the dispenser the 3rd, 7,10d investigates the beet exigua larvae number of deciding residual survival in the strain respectively. go down rate as control efficiency to proofread and correct insect population
(3) drug effect computational methods.
(4) poisoning investigation method
Duration of test is observed and is respectively handled sub-district wild cabbage well-grown, all finds no the poisoning phenomenon and takes place.
(5) field control effectiveness test result of the test
Table 4 is handled chemical control wild cabbage beet armyworm field control effectiveness test result
As can be seen from Table 4, the Mixed Pharmacy of different proportion, carry out field experiment by different consumptions, its control efficiency to the wild cabbage beet armyworm all is better than contrasting medicament behind the medicine, 15% (pleocidin: the thiophene insect amide) (1.1: 13.9) control beet armyworm quick-acting is fast, efficiency time is long, and control efficiency is good.10 days insecticidal effect reaches 84.34%, 88.78%, 90.14% respectively behind medicine, and insecticidal effect increases progressively along with the increase of consumption.According to experimental observation, each medication is handled does not all have poisoning to wild cabbage, finds that it also has the better prevention effect to insects such as diamond-back moths simultaneously yet.Suggestion was grasped at beet exigua larvae before 3 ages in dispenser period, required even spraying during dispenser, blade face, blade back even medicine, advise that the medicament different with other mechanisms of action is used alternatingly, to delay the generation of pest resistance to insecticide.
Table 5 is handled chemical control wild cabbage beet armyworm field control effectiveness test result
As can be seen from Table 5, the Mixed Pharmacy of different proportion carries out field experiment by different consumptions, its control efficiency to the wild cabbage beet armyworm all is better than contrasting medicament behind the medicine, 6% bacillus thuringiensis,Bt+9% thiophene insect amide control beet armyworm quick-acting is fast, and efficiency time is long, and control efficiency is good.10 days insecticidal effect reaches 89.12%, 90.57%, 92.32% respectively behind medicine, and insecticidal effect increases progressively along with the increase of consumption.According to experimental observation, each medication is handled does not all have poisoning to wild cabbage, finds that it also has the better prevention effect to insects such as diamond-back moths simultaneously yet.Suggestion was grasped at beet exigua larvae before 3 ages in dispenser period, required even spraying during dispenser, blade face, blade back even medicine, advise that the medicament different with other mechanisms of action is used alternatingly, to delay the generation of pest resistance to insecticide.
Test example 3: field experiment control prodenia litura test
(1) test method
Tested on July 2nd, 2010 to November 9 on Wang Zhuan wild cabbage ground, Liquan County, Xianyang, Shanxi province city, spraying equipment is a WF-16 type knapsack hand sprayer, shower nozzle is single fan nozzle, operating pressure is 0.2-0.4Mpa, spray amount is 0.36-0.48L/min, carry out the routine spraying, make every effort to evenly thoughtful during the spray medicine.The field prodenia litura is 2 instar larvae peak periods during dispenser.Every 667m2 is 60kg to the water yield.
Duration of test weather is good, and daily mean temperature is 26～34.6 ℃.Dispenser was fine the same day.
(2) investigation method
Before dispenser, select sampling by diagonal 5 in every sub-district. every cowpea 2～3 strains (deciding) of choosing prodenia litura ovum and larva on insect density.Statistics is demarcated a Spodoptera litura larvae number in the strain. with this as dispenser before the insect population radix.In after the dispenser the 3rd, 7,10d investigates the Spodoptera litura larvae number of deciding residual survival in the strain respectively. go down rate as control efficiency to proofread and correct insect population
(3) drug effect computational methods.
(4) poisoning investigation method
Duration of test is observed and is respectively handled sub-district cowpea well-grown, all finds no the poisoning phenomenon and takes place.
(5) field control effectiveness test result of the test
Table 6 is handled chemical control wild cabbage prodenia litura field control effectiveness test result
As can be seen from Table 6, the Mixed Pharmacy of different proportion carries out field experiment by different consumptions, its control efficiency to the wild cabbage beet armyworm all is better than contrasting medicament behind the medicine, 6% bacillus thuringiensis,Bt+9% thiophene insect amide control prodenia litura instant effect, efficiency time is long, and control efficiency is good.10 days insecticidal effect reaches 91.54%, 92.00%, 94.25% respectively behind medicine, and insecticidal effect increases progressively along with the increase of consumption.According to experimental observation, each medication is handled does not all have poisoning to cowpea.Suggestion was grasped in Spodoptera litura larvae before 2～3 ages in dispenser period, required even spraying during dispenser, blade face, blade back even medicine, advise that the medicament different with other mechanisms of action is used alternatingly, to delay the generation of pest resistance to insecticide.
To sum up the field experiment result is described several times, the present invention contains the Pesticidal combination of pleocidin or Dipel and thiophene insect amide, to diamondback moth, the insects such as beet noctuid and twill noctuid show good prevention effect, to the target crop safety, compare with single dose, Pesticidal combination of the present invention has effect mechanism uniqueness, the unit administration amount is few, quick-acting is good, the advantage that lasting period is long, so, in research and development of the present invention and popularization great social effect is arranged, can produce very big economic benefit, promote the peasant's of vast vegetables main producing region increasing both production and income, to agricultural product and Environmental security, the potentiality that vigorously promote the use are arranged.
Claims (7)
1. agricultural insecticide composition is characterized in that: with thiophene insect amide (A) and (B) pleocidin or (C) one of any in the bacillus thuringiensis,Bt be that active ingredient is carried out two yuan and is mixed.
2. Pesticidal combination according to claim 1 is characterized in that: the mass percent ratio of effective constituents A and B is 1～80: 80～1, and the mass percent ratio of effective constituents A and C is 1～70: 70～0.1.
3. Pesticidal combination according to claim 1 is characterized in that: effective constituents A and B are preferably 1～40 in mass percent: 40～1, and effective constituents A and C are preferably 5～40 in mass percent: 40～1.
4. Pesticidal combination according to claim 1 is characterized in that: effective constituents A and B or A and the C gross mass content in preparation is 1%-90%.
5. Pesticidal combination according to claim 1 is characterized in that: effective constituents A and B or A and the C preferred 10%-50% of gross mass content in preparation.
6. Pesticidal combination according to claim 1 is characterized in that: the formulation that Pesticidal combination of the present invention can be prepared according to the known method of those skilled in the art of the present technique is missible oil, suspending agent, micro-capsule suspension, wetting powder, water dispersible granules.
7. Pesticidal combination according to claim 1 is characterized in that: Pesticidal combination of the present invention is mainly used in control rice leaf roller, diamond-back moth, prodenia litura, cotton bollworm, beet armyworm.
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| CN201110004308XA CN102047915B (en) | 2011-01-11 | 2011-01-11 | Insecticidal composition containing thiacloprid amide |
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| CN201110004308XA CN102047915B (en) | 2011-01-11 | 2011-01-11 | Insecticidal composition containing thiacloprid amide |
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| US9370188B2 (en) | 2012-05-30 | 2016-06-21 | Bayer Cropscience Ag | Compositions comprising a biological control agent and an insecticide |
| CN106172504A (en) * | 2016-06-29 | 2016-12-07 | 江苏邦盛生物科技有限责任公司 | A kind of containing multiple killing teichomycin and the insecticides of Bacillus thuringiensis and application |
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| US9497972B2 (en) | 2012-05-30 | 2016-11-22 | Bayer Cropscience Ag | Compositions comprising a biological control agent and an insecticide |
| AU2013269665B2 (en) * | 2012-05-30 | 2016-12-15 | Bayer Cropscience Ag | Compositions comprising a biological control agent and an insecticide |
| CN103202303A (en) * | 2013-04-27 | 2013-07-17 | 海利尔药业集团股份有限公司 | Insecticidal composition containing clothianidin and pyridalyl |
| CN106172504A (en) * | 2016-06-29 | 2016-12-07 | 江苏邦盛生物科技有限责任公司 | A kind of containing multiple killing teichomycin and the insecticides of Bacillus thuringiensis and application |
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