CN102308837A - Insecticidal composition - Google Patents
Insecticidal composition Download PDFInfo
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- CN102308837A CN102308837A CN201110212968A CN201110212968A CN102308837A CN 102308837 A CN102308837 A CN 102308837A CN 201110212968 A CN201110212968 A CN 201110212968A CN 201110212968 A CN201110212968 A CN 201110212968A CN 102308837 A CN102308837 A CN 102308837A
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- worm nitrile
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Abstract
The invention relates to a pesticide insecticidal composition, effective components of which comprise ethiprole and dinotefuran, wherein the mass ratio of ethiprole to dinotefuran is 1-80:80-1 and the content of ethiprole and dinotefuran in the complex formulation preparation is 1-80%. By the adoption of a method widely known by technical personnel in the field, the complex formulation pesticide composition provided by the invention can be prepared into all pesticide dosage forms, more preferably such as missible oil, a suspending agent, wettable pulvis, water dispersible granules, an emulsion in water, a micro-emulsion, microcapsule and the like. The insecticidal composition provided by the invention is applicable to control insect pests with piercing sucking mouthparts and insect pests with chewing mouthparts in agriculture.
Description
Invention field:
The present invention relates to a kind of Synergistic insecticidal compositions of agricultural chemicals, its active ingredient is second worm nitrile and MTI-446.
Background technology:
Second worm nitrile, English common name ethiprole, molecular formula is: C
13H
9Cl
2F
3N
4OS, inferior sulphur (sulphur) acyl group of chemical name 5-amino-1-(2,6-two chloro-p-trifluoromethyl phenyls)-4-ethyl pyrazoles-3-itrile group.Second worm nitrile is the novel pyrazole insecticides, and insecticidal spectrum is wide.Disturb chloride channel through GABA (GABA), thereby destroy central nervous system (CNS) normal activity, make insect death.This medicine is tightr for the white clothing constraint comparison vertebrate of insect GABA chloride channel, thereby very high selection toxicity is provided.Its mechanism of action is different from insecticides such as pyrethroid, organic phosphor, carbamate; Almost do not produce the chance of cross resistance with the existing insecticide of majority; Therefore be the resistance treatment, desirable kind, can be mixed, be used alternatingly with other chemical pesticides.
MTI-446 is the third generation nicotinic insecticide of Mitsui chemical company exploitation.The chemical constitution of itself and existing nicotinic insecticide has than big difference, and chloro-pyridine base, chloro thiazolyl before its tetrahydrofuran base has replaced do not contain the halogen family element.Simultaneously, also different at aspect of performance with nicotine.So people are referred to as " furans nicotine " at present.This medicament insecticidal spectrum is wide, has remarkable interior suction osmosis, and has promptly shown very high insecticidal activity at very low dosage.This medicament is fool proof to mammal, birds and aquatile, and crop is not had poisoning, can be used for numerous crops such as paddy rice, fruit tree, vegetables.The chemical structural formula of MTI-446 is:
Pests with chewing mouthparts such as suckings pest such as aphid, plant hopper, thrips, scale insect and locust, stinkbug have short, characteristic such as breeding amount is big, generation overlap is obvious of breeding cycle, are easy to develop immunity to drugs.Because use in a large number, above-mentioned insect has produced serious resistance for medicaments such as Imidacloprid, Acetamiprids year after year.
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 is characterized in that with second worm nitrile (A) and MTI-446 (B) be that active ingredient is mixed, and prevents sucking pest and pests with chewing mouthparts of crops etc.
Pesticidal combination of the present invention is characterized in that the mass ratio of effective constituents A and B is 1-80: 80-1.
Pesticidal combination of the present invention is characterized in that through the toxicity test experiment, the mass ratio of effective constituents A and B is preferably 1-40: 40-1.
Said Pesticidal combination of the present invention can be prepared all formulations of pesticide according to the known method of those skilled in the art of the present technique, and more excellent is missible oil, aqueous emulsion, suspending agent, wetting powder, water dispersible granules, microemulsion.
Said second worm nitrile and the MTI-446 gross mass content in preparation is 1-80%, preferred 1-40%.
Pesticidal combination of the present invention has very 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 sucking pest and the pests with chewing mouthparts of vegetables and fruit.Pesticide dosage is low, is difficult for causing residual exceeding standard, and also has the low characteristics of toxicity simultaneously, helps environmental protection and production non-polluted farm product.
Embodiment:
The different proportioning joint toxicity measurings of second worm nitrile with MTI-446
1.1 supply the reagent agent
The former medicine of 94% second worm nitrile, the former medicine of 95% MTI-446.
1.2 supply examination worm source
Indoor Turnip Sprouts are raised the third-instar larvae of the diamond-back moth in 10 generations, temperature (25 ± 2) ° C, relative moisture 50% ± 4%, periodicity of illumination 14/10h (L/D) continuously.
1.3 single agent assay method
Adopt dip method with two 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 subsequent use, and with clear water as contrast.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.In (27 ± 1) ℃ illumination box, keep checking lethality behind the 24h, use group pin to touch the polypide nonresponder and be death.Lethality is used the Abbott formula correction, again according to the concentration logarithm---and the lethality probit value is analyzed (Bliss) method, obtains virulence regression equation and puts dead middle amount LC
50Value.
1.4 the joint toxicity measuring method of different proportionings
According to the toxicity test result of single agent, be 5% quality than second worm nitrile by active ingredient: MTI-446 was respectively 3: 12,5: 10,7.5: 7.5,10: 5,12: 3.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 following: (with second worm nitrile is the standard medicament, and its toxicity index is 100):
The LC of the toxicity index of pleocidin (TI)=second worm nitrile
50The LC of/MTI-446
50* 100
The LC of the actual toxicity index (ATI) of M=second worm nitrile
50The LC of/M
50* 100
TI * P the MTI-446 of the TI of the theoretical toxicity index (TTI) of M=second worm nitrile * P second worm nitrile+MTI-446
TTI * 100 of the ATI/M of the co-toxicity coefficient of M (CTC)=M
In the formula:
M is a second worm nitrile and the mixture of the different proportionings of MTI-446 amine
The P MTI-446 is MTI-446 shared ratio in mixture
P second worm nitrile is second worm nitrile shared ratio in mixture
2.1 toxicity test result
Table 1 second worm nitrile, MTI-446 are to the indoor measurement result of diamond-back moth
Can find out that from table in being mixed of different proportion, its co-toxicity coefficient shows certain synergistic effect all greater than 120, wherein second worm nitrile: MTI-446 is that 7.5: 7.5 synergistic effect is the most obvious, and co-toxicity coefficient is 196.81.
3 field trials control diamond-back moth, brown planthopper.
3.1 field experiment control diamond-back moth
3.1 test method
3.1.1 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 sharp agricultural board level pressure knapsack hand sprayer each is handled even spraying, leave dual sides all requires to be sprayed with the effect soup.Soup 2L is used in every sub-district.
3.1.2 investigation method
Investigate the fixing 15 strain a variety of Chinese cabbages in each sub-district 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.
3.1.3 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
3.1.4 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.
3.2 field control effectiveness test result
Table 2 is handled chemical control diamond-back moth field control effectiveness test result
Can find out from table 2; The Mixed Pharmacy of different proportion carries out field experiment by different consumptions, and its control efficiency to the wild cabbage diamond-back moth all is superior to contrasting medicament behind the medicine; 15% (second worm nitrile: MTI-446) (7.5: 7.5) 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 the field range estimation, in the test dose scope, plant growth is normal, and each is handled medicament and the poisoning phenomenon to a variety of Chinese cabbage all do not occur, explains that it is safe to a variety of Chinese cabbage.Suggestion mixes with mechanism of action different insecticide to be used to delay the generation of pest resistance to insecticide.
4.1 field experiment control brown planthopper test
4.1.1 test method
Test that paddy field carries out in suburb, Hengnan County, hengyang, hunan province city on June 27th, 2011 to July 6.Tested on June 27th, 2011 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.During dispenser the field brown planthopper be 3～4 age the nymph peak period.Every 667m
2To the water yield is 70kg.
Duration of test weather is good, and daily mean temperature is 24.7～31.8 ℃.Dispenser was fine the same day.
4.1.2 investigation method
Before dispenser in every sub-district by 5 samplings of diagonal. every paddy rice 2～3 strain of choosing brown planthopper ovum and nymph (look insect density and decide).Statistics is demarcated a nymph number in the strain, with this as dispenser before the insect population radix.In after the dispenser the 3rd, 7,10d investigates the nymph number of deciding residual survival in the strain respectively. go down rate as control efficiency to proofread and correct insect population.
4.1.3 drug effect computational methods.
4.1.4 poisoning investigation method
It is good that the sub-district paddy growth is respectively handled in the duration of test observation, and all finding has the poisoning phenomenon to take place.
4.2 field control effectiveness test result of the test
Table 3 is handled chemical control paddy rice brown planthopper field control effectiveness test result
Can find out that from table 3 Mixed Pharmacy of different proportion carries out field experiment by different consumptions; Its control efficiency to the paddy rice brown planthopper all is superior to contrasting medicament behind the medicine; 15% (second worm nitrile: MTI-446) (7.5: 7.5) control brown planthopper quick-acting is fast, and 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 paddy rice, finds that it also has the better prevention effect to insects such as aphids simultaneously yet.Suggestion was grasped the brown planthopper nymph 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.
To sum up twice field experiment result is said, and the present invention contains the Pesticidal combination of second worm nitrile and MTI-446, and insects such as diamond-back moth and brown planthopper are shown good control efficiency; To the target crop safety, to compare with single agent, Pesticidal combination of the present invention has mechanism of action uniqueness; The unit administration amount is few, so the advantage that quick-acting is good, the lasting period is long., in research and development of the present invention and popularization the important social meaning is arranged; Can produce very big economic benefit; Promote the peasant's of vast vegetables main producing region increasing both production and income,, the potentiality that vigorously promote the use are arranged agricultural product and Environmental security.
Claims (6)
1. Pesticidal combination that contains second worm nitrile (A) and MTI-446 (B).
2. Pesticidal combination according to claim 1 is characterized in that: the mass ratio of second worm nitrile and MTI-446 is 1～80: 80～1.
3. Pesticidal combination according to claim 1 is characterized in that: second worm nitrile is 1～40: 40～1 with the quality optimization ratio of MTI-446.
4. Pesticidal combination according to claim 1 is characterized in that: active ingredient second worm nitrile and the total mass ratio of MTI-446 in composition are 1～80%, preferably than being 1～40%.
5. Pesticidal combination according to claim 1; It is characterized in that: the method according to those skilled in the art of the present technique are known can be prepared all formulations of pesticide, and more excellent is missible oil, aqueous emulsion, suspending agent, wetting powder, water dispersible granules, microemulsion, microcapsule formulations etc.
6. Pesticidal combination according to claim 1 is characterized in that: be used to prevent and treat pest, like sucking pest and pests with chewing mouthparts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110212968A CN102308837A (en) | 2011-07-20 | 2011-07-20 | Insecticidal composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110212968A CN102308837A (en) | 2011-07-20 | 2011-07-20 | Insecticidal composition |
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|---|---|
| CN102308837A true CN102308837A (en) | 2012-01-11 |
Family
ID=45422706
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|---|---|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103120157A (en) * | 2013-01-24 | 2013-05-29 | 清远市顾地丰生物科技有限公司 | Insecticidal suspending agent containing dinotefuran and preparation method of insecticidal suspending agent |
| CN103651500A (en) * | 2012-09-04 | 2014-03-26 | 南京华洲药业有限公司 | Composite insecticidal composition containing ethiprole and dinotefuran and application of composite insecticidal composition |
| CN106719773A (en) * | 2015-11-22 | 2017-05-31 | 陕西韦尔奇作物保护有限公司 | A kind of high-efficient pesticide composition of the nitrile of worm containing acetyl |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1968606A (en) * | 2004-06-16 | 2007-05-23 | 拜尔农作物科学股份公司 | Synergistic insecticidal mixtures |
-
2011
- 2011-07-20 CN CN201110212968A patent/CN102308837A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1968606A (en) * | 2004-06-16 | 2007-05-23 | 拜尔农作物科学股份公司 | Synergistic insecticidal mixtures |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103651500A (en) * | 2012-09-04 | 2014-03-26 | 南京华洲药业有限公司 | Composite insecticidal composition containing ethiprole and dinotefuran and application of composite insecticidal composition |
| CN103120157A (en) * | 2013-01-24 | 2013-05-29 | 清远市顾地丰生物科技有限公司 | Insecticidal suspending agent containing dinotefuran and preparation method of insecticidal suspending agent |
| CN103120157B (en) * | 2013-01-24 | 2015-02-18 | 清远市顾地丰生物科技有限公司 | Insecticidal suspending agent containing dinotefuran and preparation method of insecticidal suspending agent |
| CN106719773A (en) * | 2015-11-22 | 2017-05-31 | 陕西韦尔奇作物保护有限公司 | A kind of high-efficient pesticide composition of the nitrile of worm containing acetyl |
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Application publication date: 20120111 |