CN101647460A - Pesticide composition with synergetic effect - Google Patents
Pesticide composition with synergetic effect Download PDFInfo
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- CN101647460A CN101647460A CN200910159607A CN200910159607A CN101647460A CN 101647460 A CN101647460 A CN 101647460A CN 200910159607 A CN200910159607 A CN 200910159607A CN 200910159607 A CN200910159607 A CN 200910159607A CN 101647460 A CN101647460 A CN 101647460A
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- imidacloprid
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Abstract
The invention discloses a pesticide composition and application thereof in agriculture. The effective component of the composition comprises flonicamid and neonicotinoid insecticides with a mass ratioof 80:1-1:80. The composition has the advantage of synergetic effect, obviously for resistant pests, reduces the dosage and delays resistance development, and is used for preventing and treating pests with obvious resistance, and is especially suitable for preventing and treating rice planthopper, thrips and aphid with resistance.
Description
Technical field
The present invention relates to a kind of composition pesticide and application thereof, be specially a kind of composition pesticide that contains flonicamid, be applied to prevent and treat the resistant insect on the plant.
Background technology
In the real process of agricultural production, chemical control is a kind of important means of agricultural production insect pests.In the chemical control process, the problem that is easy to generate most is the generation and the development of germ and pest resistance to insecticide.It is short to be easy to generate the common breeding cycle of resistant insect on the agricultural, and breeding amount is big, and generation overlap is obvious.
In the middle of pest, homoptera pest is just short because of its breeding cycle, and breeding amount is easy to generate resistance greatly.Break out in China in recent years as rice hoppers and to cause disaster, the population that high anti-Imidacloprid wherein occurs is one of reason of breaking out.In China rice belt, as south China, Central China and East China, rice hoppers is very obvious to Imidacloprid, neires toxin medicament resistance.Find that as Agricultural University Of Nanjing's mensuration in 2005 the Zhejiang brown planthopper generally reaches 70 times to the pesticide resistance of Imidacloprid, the Guangxi strain reaches more than 300 times, belongs to high resistance.Vegetables, the common homoptera pest aphid of fruit tree also are easily to produce resistance, are mainly used in to prevent that the independent results of use of anabasine medicament such as Imidacloprid that eliminate aphis are very poor.
The thrips insect has the characteristics of easy generation resistance equally.Thrips for example, breeding amount is very big, and the bodily form is little, easily outburst.In recent years in Hainan, the melon and fruit growing area in Guangdong, thrips rises to primary pest.Use such as main control medicament such as Imidacloprid, Acetamiprid, thiophene worm piperazine etc. separately cannot be prevented and treated this insect.
The composition of different cultivars carries out composite, is one of very common way of control resistant insect.But, heterogeneity carry out composite after, be synergy, addition or antagonism, unpredictable.And, have only compound synergic well to fill a prescription, obviously improve actual control efficiency, could reduce the usage amount of agricultural chemicals, delay the generation of pest resistance to insecticide.
Anabasine insecticide principal item comprises Imidacloprid, Acetamiprid, thiophene worm piperazine, Nitenpyram, thiophene worm quinoline, thiophene worm amine, MTI-446, imidaclothiz etc., their mechanism of action is identical, all act on the insect nAChR, controlling object and action characteristic are also basic identical.As previously mentioned, the pesticide resistance of this insecticides in many insects (as brown planthopper, thrips) is more and more serious at present, and control efficiency declines to a great extent.
Summary of the invention
The object of the present invention is to provide a kind of composition pesticide, be characterized in higher to the plant insect activity, obvious synergistic effect is arranged, antagonism homoptera pest and thrips insect are particularly efficient, and are difficult for producing resistance.Another object of the present invention is to provide the application of said composition on agricultural.
The present invention is achieved through the following technical solutions.
Adopt the insecticide of the different mechanisms of action to carry out the biological activity determination of different proportionings, occur three kinds of different situations after the determination of activity of different proportionings usually: summation action, antagonism, synergistic effect.With the synergy proportioning is that effective ingredient is mixed with suitable preparation, is used to prevent and treat the insect on the crops, can effectively reduce the usage amount of medicament, reduces drug cost, the generation of delaying drug resistance, thus minimizing is to the pollution of environment.
Flonicamid (flonicamid) is a kind of picolinamide class insect growth regulator, IGR, is mainly used on cotton, cucurbit, fruit, vegetables, potato, the operatic circle and the drupe.Its mechanism of action uniqueness, different with anabasine and other existing insecticide, insect there are good effects on neural system and quick antifeedant activity.
It is composite that the present invention adopts flonicamid and a kind of anabasine insecticide to carry out, and the mass ratio of flonicamid and anabasine insecticide is 80: 1-1: 80.Wherein, anabasine insecticide is selected from Imidacloprid (Imidacloprid), Acetamiprid (Acetamiprid), thiophene worm piperazine (Thiamethoxam), Nitenpyram (Nitenpyram), thiophene worm quinoline (Thiacloprid) or thiophene worm amine (Clothianidin).
As a kind of improvement of the present invention, the mass ratio of flonicamid and anabasine insecticide preferred 20: 1-1: 20.
The present composition is processed in actual applications and is fit to any dosage formulation that agricultural goes up use, and preferred dosage form is suspending agent, aqueous emulsion, water-dispersible granules, microemulsion, missible oil, aqua, soluble liquid.
The present composition can be used for preventing and treating the insect on the plant, especially is suitable for preventing and treating resistant insect, more specifically is applicable to prevent and treat resistance plant hopper, aphid and thrips.
Composition pesticide of the present invention compared with prior art produces following beneficial effect: two kinds of active ingredients in (1) composition have synergistic effect, and the outstanding apparition of the synergy of antagonism insect is compared with single agent, has obviously improved control efficiency; (2) different effective ingredients have different effect characteristics, and the control spectrum is different, and both are composite can expanding prevention to compose; (3) can reduce the field dosage, effectively reduce environmental pollution and residue of pesticide, reduce harm beneficial organism; (4) mechanism of action of both active ingredients is different in the composition, and the application of composition helps to delay pest resistance development, prolongs medicament service life.
Embodiment
In order to make purpose of the present invention, technical scheme and technological merit are clearer, below in conjunction with embodiment summary of the invention are described in further detail.Should be appreciated that described specific embodiment only is used to explain the present invention, and be not used in qualification the present invention.All any modifications of being made within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Embodiment one: flonicamid and Imidacloprid, Acetamiprid or Thiamethoxam compound virulence test
1, flonicamid and Imidacloprid virulence test
Flonicamid and the test of Imidacloprid compound synergic, it is tested object that radish aphid is adopted in test.Concrete grammar is:
Radish aphid (Lipaphis erysimi): the one-tenth aphid that warm indoor Turnip Sprouts are raised, responsive examination worm is picked up from Baoan District, Shenzhen Xixiang, and resistance examination worm is picked up from Qingxin County, Guangdong.Test former medicine flonicamid from SUMITOMO CHEMICAL Co., Ltd., Imidacloprid from Jiangsu Yangnong Chemical Group Co., Ltd.Former medicine is mixed with according to a conventional method the test medicine that needs.Test method is with reference to " the agricultural industry criteria NY/T1154.7-2006 of the People's Republic of China (PRC) ".The culture dish of 9 centimetres of the diameters of cabbage leaves (with agar processings of preserving moisture) adopt is put in test, and every processing connects 5 blood, sprays under 15PSI pressure with the potter spray tower, sprays a ware at every turn, 2 milliliters of every ware spraying liquids, and blank sprays the equivalent clear water.Each processing is provided with 6-7 concentration gradient.Every ware inserts into 30 of aphids, and the culture dish of handling is put into 25 ℃, cultivates in the 12H/12H illumination box, checks after 72 hours and calculates lethality by dead borer population.Carry out statistical analysis with the DPS data processing software, calculate the LC of each medicament
50, estimate the activity of reagent agent to the examination worm with this.
It is co-toxicity coefficient (CTC) method that the synergy mode adopts the abundant method of passing through toxicity index calculating mixture co-toxicity that waits nineteen sixty to propose of Sun Yun.The computing formula of co-toxicity coefficient is as follows:
Actual measurement toxicity index (ATI)=(standard medicament LC
50/ reagent agent LC
50) * 100
The percentage composition of B in percentage composition+B medicament ATI * mixture of A in theoretical toxicity index (TTI)=A medicament ATI * mixture
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (the ATI)/theoretical toxicity index (TTI) of mixture] * 100
When CTC≤80, then the composition performance is for antagonism, and when 80＜CTC＜120, then the composition performance is for summation action, and when CTC 〉=120, then the composition performance is synergistic effect.
Resistance and responsive aphid virulence test result see the following form 1 and 2:
Table 1 different disposal is to responsive radish aphid measurement result (sensitive population)
| Handle | ??LC 50(mg/L) | ??AT1 | ??TTI | Co-toxicity coefficient CTC |
| Flonicamid | ??1.38 | ??100.00 | ||
| Imidacloprid | ??1.07 | ??128.97 | ||
| Flonicamid 80+ Imidacloprid 1 | ??1.08 | ??127.78 | ??100.36 | ??127.32 |
| Flonicamid 40+ Imidacloprid 1 | ??1.01 | ??136.63 | ??100.71 | ??135.67 |
| Flonicamid 20+ Imidacloprid 1 | ??0.89 | ??155.06 | ??101.38 | ??152.95 |
| Flonicamid 1+ Imidacloprid 1 | ??0.77 | ??179.22 | ??114.49 | ??156.54 |
| Flonicamid 1+ Imidacloprid 20 | ??0.88 | ??156.82 | ??127.59 | ??122.91 |
| Flonicamid 1+ Imidacloprid 40 | ??0.78 | ??176.92 | ??128.27 | ??137.94 |
| Flonicamid 1+ Imidacloprid 80 | ??0.82 | ??168.29 | ??128.61 | ??130.85 |
Toxicity test result's (resistant population) of table 2 different disposal antagonism radish aphid
| Handle | ??LC 50(mg ??/L) | ??AT1 | ??TTI | Co-toxicity coefficient CTC | Resistance index |
| Flonicamid | ??1.42 | ??100.00 | ??1.03 | ||
| Imidacloprid | ??134.34 | ??1.06 | ??125.55 | ||
| Flonicamid 80+ Imidacloprid 1 | ??0.89 | ??159.55 | ??98.78 | ??161.52 | |
| Flonicamid 40+ Imidacloprid 1 | ??0.78 | ??182.05 | ??97.59 | ??186.55 | |
| Flonicamid 20+ Imidacloprid 1 | ??0.59 | ??240.68 | ??95.29 | ??252.58 | |
| Flonicamid 1+ Imidacloprid 1 | ??1.03 | ??137.86 | ??50.53 | ??272.84 | |
| Flonicamid 1+ Imidacloprid 20 | ??8.11 | ??17.51 | ??5.77 | ??303.53 | |
| Flonicamid 1+ Imidacloprid 40 | ??21.44 | ??6.62 | ??3.47 | ??190.85 | |
| Flonicamid 1+ Imidacloprid 80 | ??32.72 | ??4.34 | ??2.28 | ??190.47 |
Find out that from table 1,2 flonicamid and Imidacloprid are composite, mass ratio is 80: 1-1:, the CTC of sensitive population and resistant population radish aphid all greater than 120, is had synergistic effect at 80 o'clock.Wherein antagonism population (the Imidacloprid resistance index is reached 125.55) CTC apparently higher than sensitive population, shows that the synergy of the composite antagonism population of flonicamid and Imidacloprid is particularly evident all greater than 160.In the resistant population test, be 20 with flonicamid and Imidacloprid mass ratio again: 1-1: CTC was obviously higher in 20 o'clock, illustrated that synergy is more obvious under this proportioning.
2, flonicamid and Acetamiprid virulence test
Flonicamid and the test of Acetamiprid compound synergic, it is tested object that rice fulgorid is adopted in test.Concrete grammar is:
Rice fulgorid (brown planthopper Nilaparvata lugens): test former medicine flonicamid from SUMITOMO CHEMICAL Co., Ltd., the former medicine of Acetamiprid is from Jiangsu Yangnong Chemical Group Co., Ltd.Former medicine is mixed with according to a conventional method the test medicine that needs.The nymph that the examination worm adopts the paddy rice seedling to raise, responsive examination worm is picked up from the Guangdong Dongguan City, and resistance examination worm is picked up from Guangdong Province's Xuwen County.Test method adopts rice stem infusion process with reference to " the agricultural industry criteria NY/T1154.11-2008 of the People's Republic of China (PRC) " and " the agricultural industry criteria NY/T1154.7-2006 of the People's Republic of China (PRC) ".Extract with root the rice strain at healthy and strong tillering stage to booting initial stage, clean, be cut into the long band root rice stem of 15cm, one group of 3 strain locate to dry in the air not have washmarking to the surface in the cool place.The rice stem was soaked 30 seconds in the good medicament of dilution respectively, after taking-up is dried, encase root with the absorbent cotton that soaks and put into and cultivate cup, draw 3 mid-term in age nymph put into and cultivate cup, 20 every glass, put temperature and be 27 ℃, photoperiod and be in the incubator of 16h:8h (L:D) and raise.The cotton balls of per two days bag rice root adds water and preserves moisture.The clear water contrast, each concentration repeats 3 times.Check dead borer population after 72 hours, calculate lethality.Data processing and virulence evaluation method are the same.
Resistance and responsive rice hoppers virulence test result see the following form:
Table 3 different disposal is to toxicity test result's (sensitive population) of responsive rice hoppers
| Handle | ??LC 50(mg/L) | ??AT1 | ??TTI | Co-toxicity coefficient CTC |
| Flonicamid | ??0.97 | ??100.00 | ||
| Acetamiprid | ??2.92 | ??33.22 | ||
| Flonicamid 80+ Acetamiprid 1 | ??0.68 | ??142.65 | ??99.18 | ??143.83 |
| Flonicamid 40+ Acetamiprid 1 | ??0.71 | ??136.62 | ??98.37 | ??138.88 |
| Flonicamid 20+ Acetamiprid 1 | ??0.55 | ??176.36 | ??96.82 | ??182.16 |
| Flonicamid 1+ Acetamiprid 1 | ??0.74 | ??131.08 | ??66.61 | ??196.79 |
| Flonicamid 1+ Acetamiprid 20 | ??1.43 | ??67.83 | ??36.40 | ??186.36 |
| Flonicamid 1+ Acetamiprid 40 | ??2.26 | ??42.92 | ??34.85 | ??123.16 |
| Flonicamid 1+ Acetamiprid 80 | ??2.31 | ??41.99 | ??34.04 | ??123.35 |
Toxicity test result's (resistant population) of table 4 different disposal antagonism rice hoppers
| Handle | ??LC 50(mg/L) | ??AT1 | ??TTI | Co-toxicity coefficient CTC | Resistance index |
| Flonicamid | ??0.91 | ??100.00 | ??0.94 | ||
| Acetamiprid | ??406.95 | ??0.22 | ??139.37 | ||
| Flonicamid 80+ Acetamiprid 1 | ??0.48 | ??189.58 | ??98.77 | ??191.95 | |
| Flonicamid 40+ Acetamiprid 1 | ??0.44 | ??206.82 | ??97.57 | ??211.98 | |
| Flonicamid 20+ Acetamiprid 1 | ??0.31 | ??293.55 | ??95.25 | ??308.19 | |
| Flonicamid 1+ Acetamiprid 1 | ??0.56 | ??162.50 | ??50.11 | ??324.27 | |
| Flonicamid 1+ Acetamiprid 20 | ??6.01 | ??15.14 | ??4.97 | ??304.36 | |
| Flonicamid 1+ Acetamiprid 40 | ??12.81 | ??7.10 | ??2.66 | ??267.34 | |
| Flonicamid 1+ Acetamiprid 80 | ??24.59 | ??3.70 | ??1.46 | ??254.27 |
Find out that from table 3,4 flonicamid and Acetamiprid are composite, mass ratio is 80: 1-1:, the CTC of sensitive population and resistant population rice fulgorid all greater than 120, is had synergistic effect at 80 o'clock.Wherein antagonism population (resistance index to Acetamiprid reaches 139.37) CTC apparently higher than sensitive population, shows that the synergy of the composite antagonism population of flonicamid and Acetamiprid is particularly evident all greater than 190.In the resistant population test, be 20 with flonicamid and Acetamiprid mass ratio again: 1-1: CTC was obviously higher in 20 o'clock, illustrated that synergy is more obvious under this proportioning.
3, flonicamid and thiophene worm piperazine virulence test
Flonicamid and Thiamethoxam compound synergism test, it is tested object that the cowpea flower thrips is adopted in test.Concrete grammar is:
Flower thrips (Frankliniella intonsa): test former medicine flonicamid from SUMITOMO CHEMICAL Co., Ltd., the former medicine of thiophene worm piperazine is just reaching earlier crop protection Co., Ltd from Switzerland.Former medicine is mixed with according to a conventional method the test medicine that needs.The thrips adult that the examination worm adopts cowpea to raise, responsive examination worm is picked up from Shaoguan, Guangdong, and resistance examination worm is picked up from Sanya, Hainan.Test method is with reference to " the agricultural industry criteria NY/T1154.7-2006 of the People's Republic of China (PRC) ".Test method adopts leaf dipping method.Adopt the beans leaf dish of diameter 1cm to soak soup 5 seconds, put into dactylethrae after taking-up is dried.Clear water is soaked in contrast.Every dactylethrae inserts 20 thrips adults.Fruit came to an end after 72 hours.Check result, data are handled identical with the test of aphid virulence with the virulence evaluation method.
Resistance and responsive flower thrips virulence test result see the following form:
Table 5 different disposal is to toxicity test result's (sensitive population) of responsive flower thrips
| Handle | ??LC 50(mg/L) | ??AT1 | ??TTI | Co-toxicity coefficient CTC |
| Flonicamid | ??1.34 | ??100.00 | ||
| Thiophene worm piperazine | ??1.02 | ??131.37 | ||
| Flonicamid 80+ thiophene worm piperazine 1 | ??0.93 | ??144.09 | ??100.39 | ??143.53 |
| Flonicamid 40+ thiophene worm piperazine 1 | ??0.88 | ??152.27 | ??100.77 | ??151.12 |
| Flonicamid 20+ thiophene worm piperazine 1 | ??0.77 | ??174.03 | ??101.49 | ??171.46 |
| Flonicamid 1+ thiophene worm piperazine 1 | ??0.57 | ??235.09 | ??115.69 | ??203.21 |
| Flonicamid 1+ thiophene worm piperazine 20 | ??0.61 | ??219.67 | ??129.88 | ??169.14 |
| Flonicamid 1+ thiophene worm piperazine 40 | ??0.81 | ??165.43 | ??130.61 | ??126.66 |
| Flonicamid 1+ thiophene worm piperazine 80 | ??0.79 | ??169.62 | ??130.99 | ??129.50 |
Toxicity test result's (resistant population) of table 6 different disposal antagonism flower thrips
| Handle | ??LC 50(mg/L) | ??AT1 | ??TTI | Co-toxicity coefficient CTC | Resistance index |
| Flonicamid | ??1.57 | ??100.00 | ??1.17 | ||
| Thiophene worm piperazine | ??46.95 | ??3.34 | ??46.03 | ||
| Flonicamid 80+ thiophene worm piperazine 1 | ??0.72 | ??218.06 | ??98.81 | ??220.69 | |
| Flonicamid 40+ thiophene worm piperazine 1 | ??0.82 | ??191.46 | ??97.64 | ??196.09 | |
| Flonicamid 20+ thiophene worm piperazine 1 | ??0.55 | ??285.45 | ??95.40 | ??299.23 | |
| Flonicamid 1+ thiophene worm piperazine 1 | ??0.87 | ??180.46 | ??51.67 | ??349.24 | |
| Flonicamid 1+ thiophene worm piperazine 20 | ??6.13 | ??25.61 | ??7.95 | ??322.30 | |
| Flonicamid 1+ thiophene worm piperazine 40 | ??11.23 | ??13.98 | ??5.70 | ??245.21 | |
| Flonicamid 1+ thiophene worm piperazine 80 | ??12.97 | ??12.10 | ??4.54 | ??266.79 |
Find out that from table 5,6 flonicamid and Thiamethoxam compound, mass ratio are 80: 1-1:, the CTC of sensitive population and resistant population flower thrips all greater than 120, is had synergistic effect at 80 o'clock.Wherein antagonism population (is 46.03 to thiophene worm piperazine resistance index) CTC is higher than sensitive population all greater than 190, shows that flonicamid and the synergy of Thiamethoxam compound antagonism population are particularly evident.In the resistant population test, be 20 with flonicamid and thiophene worm piperazine mass ratio again: 1-1: CTC was obviously higher in 20 o'clock, illustrated that synergy is more obvious under this proportioning.
Embodiment two: flonicamid and preparation of Imidacloprid complex preparation and medicament field trial
Former medicine 5.12 grams of 97.6% flonicamid
Former medicine 5.26 grams of 95% Imidacloprid
Neopelex 2.3 grams
Phenol formaldehyde resin APEO 3.8 grams
Carboxymethyl cellulose 3.35 grams
Deionized water adds to 100 grams
The amount of above component by prescription added in the blender successively, stir after the shearing, make 100 gram 10% flonicamid Imidacloprid aqueous emulsions (mass ratio of flonicamid and Imidacloprid is 1: 1).
10% flonicamid Imidacloprid aqueous emulsion by the spraying of effective ingredient 10 gram/hectare thin ups, is used to prevent and treat cabbage aphid.1 day control efficiency is that 93.3%, 30% flonicamid aqueous emulsion and 20% Imidacloprid aqueous emulsion use according to reaching dosage with quadrat method behind the medicine, and 3 days preventive effects are respectively 78.4% and 75.6% behind the medicine.Significant difference.
Continue the investigation prevention effect behind the medicine after 7 days, 10% flonicamid Imidacloprid aqueous emulsion control efficiency is 78.4%, 30% flonicamid aqueous emulsion and 20% Imidacloprid aqueous emulsion are according to using with quadrat method and dosage, and 7 days preventive effects are respectively 57.3% and 35.6% behind the medicine.Difference is more remarkable.Show that composite dose of lasting period rise appreciably, can reduce the medication number of times, thereby reduce environmental pollution, reduce residue of pesticide.
Embodiment three: flonicamid and preparation of Acetamiprid complex preparation and medicament field trial
Former medicine 20.49 grams of 97.6% flonicamid
Former medicine 1.1 grams of 95% Acetamiprid
Aliphatic acid polyethenoxy ether 3.4 grams
Naphthalenesulfonic acid-formaldehyde condensate sodium salt 2.5 grams
Xanthans 1 gram
Water adds to 100 grams
The amount of above component by prescription mixed, after grinding and/or high speed shear, obtain 100 gram 21% flonicamid acetamiprid suspending agents (mass ratio of flonicamid and Acetamiprid is 20: 1).
21% flonicamid acetamiprid suspending agent by the spraying of effective ingredient 30 gram/hectare thin ups, is used to prevent and treat rice fulgorid (brown planthopper accounts for more than 95%, is 186.8 times to the Imidacloprid resistance).3 days control efficiency are that 92.3%, 24% flonicamid suspending agent and 20% Acetamiprid aqua use according to reaching dosage with quadrat method behind the medicine, and 3 days preventive effects are respectively 74.2% and 67.4% behind the medicine.Significant difference.
Continue the investigation prevention effect behind the medicine after 21 days, 21% flonicamid acetamiprid suspending agent control efficiency is 82.7%, 24% flonicamid suspending agent and 20% Acetamiprid aqua are according to using with quadrat method and dosage, and 21 days preventive effects are respectively 56.8% and 34.2% behind the medicine.Difference is more remarkable.Show that composite dose of lasting period rise appreciably, can reduce the medication number of times, thereby reduce environmental pollution, reduce residue of pesticide.
Embodiment four: flonicamid and preparation of Acetamiprid complex preparation and medicament field trial
Former medicine 2.56 grams of 97.6% flonicamid
Former medicine 52.63 grams of 95% thiophene worm amine
Sodium lignin sulfonate 5.5 grams
Calcium dodecyl benzene sulfonate 4.5 grams
Xanthans 0.8 gram
Water adds to 100 grams
The amount of above component by prescription mixed, after grinding and/or high speed shear, obtain 100 grams, 52.5% flonicamid thiophene worm amine suspending agent (mass ratio of flonicamid and thiophene worm amine is 1: 20).
52.5% flonicamid thiophene worm amine suspending agent by the spraying of effective ingredient 30 gram/hectare thin ups, is used to prevent and treat cabbage heart aphid (95% for radish aphid, is 43.2 times to the Acetamiprid resistance).3 days control efficiency are that 92.2%, 24% flonicamid suspending agent and 20% thiophene worm amine suspending agent use according to reaching dosage with quadrat method behind the medicine, and 3 days preventive effects are respectively 78.1% and 77.1% behind the medicine.Significant difference.Investigation simultaneously finds that also composite dose also has positive effect to phyllotreta striolata, and control reaches 86.3%, and the agent of fluorine pyridine worm hydrazides list is invalid to phyllotreta striolata.
Go ahead with one's investigation after 21 days behind the medicine to the control efficiency of aphid, 52.5% flonicamid thiophene worm amine suspending agent control efficiency is 76.2%, 24% flonicamid suspending agent and 20% thiophene worm amine suspending agent are according to using with quadrat method and dosage, and 21 days preventive effects are respectively 54.2% and 36.8% behind the medicine.Difference is more remarkable.Show that composite dose of lasting period rise appreciably, can reduce the medication number of times, thereby reduce environmental pollution, reduce residue of pesticide.
Embodiment five: flonicamid and Thiamethoxam compound preparation and field trial
Flonicamid thiophene worm piperazine water-dispersible granules
Former medicine 1.02 grams of 97.6% flonicamid
Former medicine 81.63 grams of 98% thiophene worm piperazine
Alkylphenol polyoxyethylene 1.5 grams
Poly-naphthaldehyde sulfonate sodium 2.1 grams
Urea 4.0 grams
Precipitated calcium carbonate adds to 100 grams
The consumption of above component by prescription mixed, become wetting powder, add a certain amount of water mixing extruding again and make material through comminution by gas stream.Obtain the diffusing property granula (mass ratio between flonicamid and the thiophene worm piperazine is 1: 80) of 81% flonicamid thiophene worm piperazine water after the drying screening.
This prescription is used to prevent and treat the flower thrips (resistance to thiophene worm piperazine is 12.2 times) on the cowpea by the spraying of effective ingredient 30 gram/hectare thin ups.1 day control efficiency is that 96.1%, 70% flonicamid water-dispersible granules and 80% thiophene worm piperazine water-dispersible granules use according to reaching dosage with quadrat method behind the medicine, and 1 day preventive effect is respectively 55.1% and 85.1% behind the medicine.Significant difference.This composite dose of discovery is remarkable to cowpea trialeurodes vaporariorum effect in test simultaneously, and control reaches 85%.
Go ahead with one's investigation after 7 days behind the medicine to the control efficiency of flower thrips, the diffusing property granula agent control efficiency of 81% flonicamid thiophene worm piperazine water is 81.1%, 70% flonicamid water-dispersible granules and 80% thiophene worm piperazine water-dispersible granules are according to using with quadrat method and dosage, and 7 days preventive effects are respectively 37.2% and 44.6% behind the medicine.Difference is more remarkable.Show that composite dose of lasting period rise appreciably, can reduce the medication number of times, thereby reduce environmental pollution, reduce residue of pesticide.
Embodiment six: flonicamid and thiophene worm quinoline complex preparation and field trial
Former medicine 20.49 grams of 97.6% flonicamid
Former medicine 0.26 gram of 95% thiophene worm quinoline
N-Methyl pyrrolidone (solvent) 5.8 grams
Dimethyl formamide (cosolvent) 2.2 grams
Tween-80 (emulsifier) 4.5 grams
Calcium dodecyl benzene sulfonate 1.5 grams
Water complements to 100 grams
Former medicine, solvent, cosolvent, emulsifier are added together, make and be dissolved into even oil phase; Under agitation, oil phase is mixed with water, stirring makes 20.25% flonicamid thiophene worm quinoline microemulsion (mass ratio between flonicamid and the thiophene worm quinoline is 80: 1).
This prescription is used to prevent and treat the thrips on the cucumber by the spraying of effective ingredient 30 gram/hectare thin ups.1 day control efficiency is that 94.5%, 10% flonicamid microemulsion and 10% thiophene worm quinoline microemulsion use according to reaching dosage with quadrat method behind the medicine, and 1 day preventive effect is respectively 63.7% and 82.5% behind the medicine.Significant difference.
Continue the investigation prevention effect behind the medicine after 7 days, 20.25% flonicamid thiophene worm quinoline microemulsion control efficiency is 84.1%, 10% flonicamid microemulsion and 10% thiophene worm quinoline microemulsion are according to using with quadrat method and dosage, and 7 days preventive effects are respectively 56.8% and 68.8% behind the medicine.Difference is more remarkable.Show that composite dose of lasting period rise appreciably, can reduce the medication number of times, thereby reduce environmental pollution, reduce residue of pesticide.
Embodiment seven: flonicamid and preparation of Nitenpyram complex preparation and medicament field trial
Former medicine 1.02 grams of 97.6% flonicamid
Former medicine 22.22 grams of 90% Nitenpyram
Neopelex 8.3 grams
Phenol formaldehyde resin APEO 4.8 grams
Dimethyl sulfoxide (DMSO) 25 grams
Toluene adds to 100 grams
The amount of above component by prescription added in the blender successively, stir, make 100 gram 21% flonicamid Nitenpyram missible oil (mass ratio of flonicamid and Nitenpyram is 1: 20).
21% flonicamid Nitenpyram missible oil by the spraying of effective ingredient 20 gram/hectare thin ups, is used to prevent and treat bitter edible plant smaller green leaf hopper (is 45.38 times to the Imidacloprid resistance).1 day control efficiency is that 98.1%, 30% flonicamid missible oil and 20% Nitenpyram missible oil use according to reaching dosage with quadrat method behind the medicine, and 3 days preventive effects are respectively 85.2% and 77.1% behind the medicine.Significant difference.
Continue the investigation prevention effect behind the medicine after 7 days, 21% flonicamid Nitenpyram missible oil control efficiency is 79.9%, 30% flonicamid missible oil and 20% Nitenpyram missible oil are according to using with quadrat method and dosage, and 7 days preventive effects are respectively 60.3% and 58.8% behind the medicine.Difference is more remarkable.Show that composite dose of lasting period rise appreciably, can reduce the medication number of times, thereby reduce environmental pollution, reduce residue of pesticide.
Claims (6)
1, a kind of composition pesticide, the effective ingredient that it is characterized in that it is flonicamid and anabasine insecticide, the mass ratio of flonicamid and anabasine insecticide is 80: 1-1: 80.
2, composition pesticide according to claim 1 is characterized in that described anabasine insecticide is Imidacloprid, Acetamiprid, thiophene worm piperazine, Nitenpyram, thiophene worm quinoline, thiophene worm amine.
3, according to the described composition pesticide of claim 2, the mass ratio that it is characterized in that flonicamid and anabasine insecticide is 20: 1-1: 20.
4,, it is characterized in that its formulation is suspending agent, aqueous emulsion, water-dispersible granules, microemulsion, missible oil according to each described composition pesticide of claim 1 to 3.
5, the described composition pesticide of claim 4 is used to prevent and treat the resistant insect on the plant.
6,, it is characterized in that being used to prevent and treat resistance thrips, aleyrodid, plant hopper and aphid according to the application of the described composition pesticide of claim 5.
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