CN103461371A - Methoxyfenozide and dinotefuran pesticidal composition - Google Patents
Methoxyfenozide and dinotefuran pesticidal composition Download PDFInfo
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- CN103461371A CN103461371A CN2013103625109A CN201310362510A CN103461371A CN 103461371 A CN103461371 A CN 103461371A CN 2013103625109 A CN2013103625109 A CN 2013103625109A CN 201310362510 A CN201310362510 A CN 201310362510A CN 103461371 A CN103461371 A CN 103461371A
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Abstract
The invention discloses a methoxyfenozide and dinotefuran pesticidal composition. The methoxyfenozide and dinotefuran pesticidal composition comprises a first effective component methoxyfenozide and a second effective component dinotefuran as well as common auxiliary components, wherein the weight ratio of the methoxyfenozide to the dinotefuran is (20:1)-(1:40) in the composition; the total weight percentage of the methoxyfenozide and the dinotefuran is 0.5-80% in the composition. A large number of indoor and outdoor tests show that the methoxyfenozide and the dinotefuran have an obvious synergetic effect, so that the usage amount of pesticide in practical application can be reduced, residual quantity of the pesticide on crops can be reduced, pollution to the environment can be reduced, and generation time of drug resistance of pests is delayed.
Description
Technical field
The present invention relates to agricultural insecticide composition and application thereof, specifically take methoxyfenozide and MTI-446 as the composite binary complex of active ingredient, for preventing and treating paddy rice and vegetable-crop pest-insect.
Background technology
Methoxyfenozide (methoxyfenozide), belong to the bishydrazide insecticide, is a kind of insect growth regulator, IGR.After insect takes food medicament, produce the reaction of casting off a skin and start to cast off a skin, cause larva dehydration, hungry and dead owing to not casting off a skin fully.Be mainly used in preventing and treating the larva of lepidoptera pest, as beet armyworm, prodenia litura, cabbage caterpillar, cotton bollworm, apple leaf miner, fall webworm, pine caterpillars, looper and the snout moth's larva of rice etc.
MTI-446 (dinotefuran), belong to third generation nicotinic insecticide, this medicament have tag, strong, the quick-acting height of absorption, long characteristics such as (3-4 weeks) of lasting period in stomach toxicity and root.The MTI-446 Main Function, in insect neurotransmission system, is brought into play insecticidal action thereby insect is benumbed.This medicament insecticidal spectrum is wide, can be used for the controls of insect such as numerous crop Homopteras such as paddy rice, fruit tree, vegetables, Lepidoptera, coleoptera.
The pesticide resistance problem of pest is a global problem, is the emphasis problem that the agricultural science and technology worker pays close attention to always.Along with the continuity year in year out of Chemical Control of Harmful Insects, increase and the non-science of agricultural chemicals usage amount are used the factors such as agricultural chemicals, cause pest resistance day by day serious, the pest species that produces resistance is on the increase.Simultaneously, high-intensity use agricultural chemicals, caused that Practice for Pesticide Residue in Agricultural Products exceeds standard, the series of problems such as contaminated environment and the increase of peasant's drug cost, is unfavorable for agriculture sustainable development.
Therefore, development is efficient, low toxicity, the different mechanism of action, the composite product of synergistic function is arranged again simultaneously, not only contributes to delay the generation of pest resistance to insecticide, but also can extend service life of pesticide species, reduce using dosage, cost-saving, reduce the pollution to environment.
The inventor conducts in-depth research the compounded formula screening of methoxyfenozide and MTI-446, discovery methoxyfenozide and MTI-446 are carried out composite, there is obvious synergistic function in certain compound proportion scope, in actual use, insect on crops is had to control efficiency preferably, after further study, completed the present invention.
Have not yet to see the composite pertinent literature report of methoxyfenozide and MTI-446.
Summary of the invention
The object of the present invention is to provide a kind of methoxyfenozide and MTI-446 composition pesticide, this complex composition has obvious synergistic function, in use can reduce dosage, reduces the residual quantity of agricultural chemicals on crops, delay the generation of pest resistance to insecticide; Can also make its control efficiency to insect use and compare obvious raising separately than single dose, laborsaving, economical, reduce farmer's burdens.
Technical scheme of the present invention: a kind of composition pesticide, comprise the first active ingredient methoxyfenozide and the second active ingredient MTI-446 and auxiliary element commonly used, wherein methoxyfenozide and the MTI-446 weight ratio in composition is 20
:1～1
:40, methoxyfenozide and the MTI-446 gross weight percentage composition in composition is 0.5～80%.
Composition pesticide of the present invention can be prepared into by known method and be applicable to any one formulation of using in agricultural production, and reasonable formulation has suspending agent, aqueous emulsion, microemulsion, granule, water dispersible granules and wetting powder.
While preparing suspending agent, the weight percentage of each component is: methoxyfenozide 1～40%; MTI-446 1～40%; Wetting agent 5～10%; Dispersant 5～20%; Antifreezing agent 1～5%; Thickener 0.1～2%; Defoamer 0.1～1%; Deionized water adds to 100%.The concrete production stage of this suspending agent is: first other auxiliary agents are mixed, through high speed shear, mix, then add active ingredient methoxyfenozide and MTI-446, in ball crusher, grind 2～3 hours, make diameter of particle all below 5 μ m, can be made into the suspending agent preparation of the present composition.
While preparing aqueous emulsion, the weight percentage of each component is: methoxyfenozide 1～50%; MTI-446 1～50%; Emulsifier 5～25%; Solvent 5～15%; Stabilizing agent 2～10%; Antifreezing agent 1～5%; Thickener 0.1～2%; Deionized water adds to 100%.The concrete production stage of this aqueous emulsion is: at first methoxyfenozide and MTI-446, solvent and emulsifier are added together, make to be dissolved into uniform oil phase; Then other the auxiliary agent such as part deionized water, stabilizing agent is mixed into to uniform water; Then when the reactor high speed stirs, oil phase is added to water, slowly add water until reach the phase inversion point, open clipper and carry out high speed shear, and add remaining deionized water, shear about half an hour, form the aqueous emulsion of oil-in-water type, can be made into the aqueous emulsion preparation of the present composition.
While preparing microemulsion, the weight percentage of each component is: methoxyfenozide 1～50%; MTI-446 1～50%; Solvent 10～30%; Emulsifier 5～30%; Antifreezing agent 1～5%; Stabilizing agent 1～10%; Deionized water adds to 100%.The concrete production stage of this microemulsion is: first methoxyfenozide and MTI-446 are dissolved fully with solvent, then add other auxiliary agents such as emulsifier, antifreezing agent, be uniformly mixed in being uniformly mixed still, can be made into the microemulsion formulation of the present composition.
While preparing wetting powder, the weight percentage of each component is: methoxyfenozide 1～60%; MTI-446 1～80%; Dispersant 5～10%; Wetting agent 5～10%; Filler adds to 100%.The concrete production stage of this wetting powder is: the active ingredient methoxyfenozide is mixed with MTI-446 and dispersant, wetting agent and filler, again through air-flow crushing, mix after mechanical crushing, can be made into the wettable powder agent formulation of the present composition.
While preparing water dispersible granules, the weight percentage of each component is: methoxyfenozide 1～60%; MTI-446 1～80%; Dispersant 5～15%; Wetting agent 5～10%; Disintegrant 1～8%; Filler adds to 100%.The concrete production stage of this water dispersible granules is: by above-mentioned formula, the active ingredient methoxyfenozide is mixed with MTI-446 and dispersant, wetting agent, disintegrant and filler, with micro jet, pulverize, through mediating, then add in the fluidized bed prilling dryer and carry out granulation, drying, screening by sample analysis, can be made into the water-dispersible grain agent formulation of the present composition.
While preparing granule, the weight percentage of each component is: methoxyfenozide 0.1～10%; MTI-446 0.1～10%; Binding agent 10～30%; Dispersant 5～15%; Wetting agent 5～10%; Filler adds to 100%.The concrete production stage of this granule is: above-mentioned material is added in cone-type mixer and mixes together, by airslide disintegrating mill, pulverize, material after pulverizing mixes through cone-type mixer again, and mixed fineness of materials 98%, by 325 mesh standard sieves, obtains wetting powder.Then will this wetting powder drop in granulating disc and add the water granulation, cooling by drying drying, screening, cooling cylinder, can make the granular preparation of the present composition.
Described solvent can be one or more the mixing in deionized water, methyl alcohol, ethanol, butanols, propane diols, glycerine, polyethylene glycol, cyclohexanone, pyrrolidones, ethyl acetate.
Described emulsifier can be agriculture breast 500#(alkyl benzene calcium sulfonate), agriculture breast 400#(benzyl dimethyl phenol polyoxy ethyl ether), Nongru-700 #(alkylphenol-formaldehyde resin polyoxy ethyl ether), agriculture breast 1600#(phenethyl phenol polyoxy ethyl polypropylene-base ether), styrene polyoxyethylene ether ammonium sulfate salt, alkyl biphenyl ether disulfonic acid magnesium salts, triethanolamine salt, ethylene oxide-propylene oxide block copolymer, OP series (polyoxyethylene nonylphenol ether), BY series (castor oil polyoxyethylene ether), sapn series (sorbitol anhydride monostearate), the mixing of one or several in tween series (anhydrous sorbitol resin acid ester APEO) or AEO series (fatty alcohol-polyoxyethylene ether).
Described wetting agent can be one or more the mixing in lauryl sodium sulfate, neopelex, sodium butylnaphthalenesulfonate, petroleum sodium sulfonate, wetting and penetrating agent F, Nekal BX, the withered powder of tea, spaonin powder, soapberry powder etc.
Described disintegrant can be one or more the mixing in sodium bicarbonate, magnesium chloride, aluminium chloride, sodium chloride, urea, ammonium sulfate, bentonite etc.
Described dispersant can be one or more the mixing in lignosulfonates, polycarboxylate, alkylphenol polyoxyethylene sulphate, alkyl benzene sulfonate calcium salt, fatty acid ester sulphate, alkylphenol polyoxyethylene, fatty alcohol-polyoxyethylene ether etc.
Described thickener can be one or more the mixing in polyvinyl alcohol, polyvinyl acetate, xanthans, gelatin, gum Arabic, polyvinylpyrrolidone, aluminium-magnesium silicate, phenolic resins, CMC, sodium alginate etc.
Described stabilizing agent can xylitol, one or more the mixing in mannitol, pentaerythrite, triphenyl phosphite, sodium citrate etc.
Described defoamer can be to be selected from silicone oil, silicone compound, C
10-20saturated fat acid compounds, C
8-10the mixing of one or more of fatty alcohol.
Described antifreezing agent can be one or more mixing in glycerine, propane diols, diethylene glycol (DEG), polyethylene glycol etc.
Described binding agent can be viscosity kaolin, the mixing of one or more in attapulgite, paraffin, rosin, gelatinized starch.
Described filler can be one or more the mixing in precipitated calcium carbonate, potter's clay, kaolin, diatomite, bentonite, white carbon, clay, talcum powder, quartz sand etc.
The frequency of administration of the present composition and amount of application have small variations with crops, insect, weather condition variation, can reach the purpose of effective control by using suitable dosage.
Compared with prior art, the invention has the advantages that:
1, methoxyfenozide and MTI-446 are composite has a synergistic function, has enlarged insecticidal spectrum, than the independent use of single dose, has obviously improved the control efficiency to insect.
2, methoxyfenozide and MTI-446 have respectively the different mechanism of action, can delay the generation of pest resistance to insecticide.
3, two kinds of active ingredients of methoxyfenozide and MTI-446 are composite, reduced the agricultural chemicals usage amount, reduced use cost and to the pollution of environment.
Embodiment
In order to understand better essence of the present invention, below in conjunction with Toxicity Determination and field control effectiveness test embodiment, content of the present invention is described further, but can not be considered as limitation of the present invention.
one, methoxyfenozide and the MTI-446 indoor joint toxicity measuring to diamond-back moth.
For trying worm: the indoor Individual Size diamond-back moth third-instar larvae consistent with physiological status of for many generations raising.
Reagent agent: the former medicine of 98.5% methoxyfenozide and the former medicine of 99.1% MTI-446.
Test method: adopt the malicious blade method of folder, with reference to " the agricultural industry criteria NY/T1154.2-2006 of the People's Republic of China (PRC) ", concrete grammar is as follows.
At first beat and get leaf butterfly with the card punch of diameter 1cm, put into culture dish, moisturizing.Then with the capillary dropper by each treatment agent from low concentration, every leaf butterfly drop 1 μ L liquid, after solvent evaporates and another sheet involutory making of leaf butterfly of scribbling gelatinized corn starch press from both sides malicious leaf butterfly, make in the complete hole that is put in 12 hole tissue culturing plates.Connect 1 examination worm in each hole of last tissue culturing plate, in the intelligent insectary that to be placed in 26 ± 1 ℃ of temperature, relative moisture be 70%.Connect worm after 2～4 hours, after trying worm and having taken food the pastille leaf butterfly, in cultivating plate hole, add clean feed to continue to raise to investigation, eliminate the examination worm that has not eaten a complete leaf butterfly.4 repetitions are established in every processing, often repeat to be no less than 12 malicious leaf butterflies of folder, and establish not containing the processing of the corresponding organic solvent of medicament in contrast.After processing, 24h investigation examination worm death condition, record total borer population and dead borer population.
Carry out statistical analysis with the DPS statistical analysis software, calculate the LC of each medicament
50, and calculate the co-toxicity coefficient (CTC value) of mixture according to the abundant method of Sun Yun.
Actual measurement toxicity index (ATI)=(standard medicament LC
50/ reagent agent LC
50) * 100.
The percentage composition of B in the percentage composition of A+B medicament toxicity index * mixture in theoretical toxicity index (TTI)=A medicament toxicity index * mixture.
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (ATI)/theoretical toxicity index (TTI) of mixture] * 100.
According to the NY/T11547.7-2006 insecticide synergy criteria for classifying: co-toxicity coefficient (CTC) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80<co-toxicity coefficient (CTC)<120 shows as summation action.
Table 1, methoxyfenozide and the MTI-446 indoor joint toxicity measuring to diamond-back moth.
As can be seen from Table 1, methoxyfenozide and MTI-446 are 20
:1～1
:40(is by weight) scope in when composite, co-toxicity coefficient (CTC) all is greater than 120, illustrates diamond-back moth is shown to the visible methoxyfenozide of synergistic function and MTI-446 is composite has reasonability and a feasibility.
two, methoxyfenozide and the MTI-446 indoor joint toxicity measuring to rice fulgorid.
For trying worm: the indoor Individual Size rice fulgorid tritonymph consistent with physiological status of for many generations raising.
Reagent agent: the former medicine of 98.5% methoxyfenozide and the former medicine of 99.1% MTI-446.
Test method: adopt rice stem infusion process to be measured, with reference to " the agricultural industry criteria NY/T1154.11-2008 of the People's Republic of China (PRC) ", concrete grammar is as follows.
At first choose the healthy and strong consistent rice seedlings in tillering stage of laboratory cultures, grubbed out, clean, be cut into the long band root rice stem of about 10cm, In Shade drying.Then ready rice stem is flooded to 30s in the liquid prepared, taking-up is dried, and with wet absorbent cotton, encases the root moisturizing, and the outsourcing preservative film, be placed in test tube, every test tube 3 strains.Then will try worm with pest sucking device and move in test tube, 15 of every pipes, the mouth of pipe encases with gauze.Finally the examination worm after processing being placed in to condition of culture is temperature (26 ± 1) ℃, relative moisture 60% ~ 80%, and periodicity of illumination is L: D=(16: 8) under the condition of h, raise.4 repetitions are established in every processing, and establish not containing the processing of the corresponding organic solvent of medicament in contrast.After processing, 48h investigation examination worm death condition, record total borer population and dead borer population.
Carry out statistical analysis with the DPS statistical analysis software, calculate the LC of each medicament
50, and calculate the co-toxicity coefficient (CTC value) of mixture according to the abundant method of Sun Yun.
Actual measurement toxicity index (ATI)=(standard medicament LC
50/ reagent agent LC
50) * 100.
The percentage composition of B in the percentage composition of A+B medicament toxicity index * mixture in theoretical toxicity index (TTI)=A medicament toxicity index * mixture.
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (ATI)/theoretical toxicity index (TTI) of mixture] * 100.
According to the NY/T11547.7-2006 insecticide synergy criteria for classifying: co-toxicity coefficient (CTC) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80<co-toxicity coefficient (CTC)<120 shows as summation action.
Table 2, methoxyfenozide and the MTI-446 indoor joint toxicity measuring to rice fulgorid.
As can be seen from Table 2, methoxyfenozide and MTI-446 are 20
:1～1
:40(is by weight) scope in when composite, co-toxicity coefficient (CTC) all is greater than 120, illustrates rice fulgorid is shown to synergistic function.Visible methoxyfenozide and MTI-446 be composite has reasonability and feasibility.
three, the composite field control effectiveness test to the wild cabbage diamond-back moth of methoxyfenozide and MTI-446.
This embodiment, for preventing and treating the wild cabbage diamond-back moth, investigates the insect population radix before dispenser, after medicine, 3d, 7d, 10d investigate respectively residual borer population alive, investigation Shi Mei community is undertaken by diagonal 5 point samplings, look into residual diamondback moth larvae on 2 strain wild cabbages at every, record borer population alive, calculate control efficiency.
The control efficiency computational methods are as follows: control efficiency (%)=(1-CK
1* Pt
1/ CK
2* Pt
2) * 100.
Wherein: CK
1represent the front insect population number of check plot medicine; Pt
1represent insect population number after the treatment region medicine; CK
2represent insect population number after the medicine of check plot; Pt
2represent the front insect population number for the treatment of region medicine.
Table 3, respectively process the result of the test of chemical control wild cabbage diamond-back moth.
As can be seen from Table 3,15% MTI-446 5% methoxyfenozide water dispersible granules is along with the increase of the using dosage control efficiency to the wild cabbage diamond-back moth obviously promotes; When preparation mu consumption is the 30-35 gram, 3d, 7d after medicine, 10d all obviously are better than each single dose to the preventive effect of wild cabbage diamond-back moth to be used separately, after medicine, the 10d preventive effect all still reaches more than 85% simultaneously, illustrate that this compound drug has lasting effect preferably, do not find that in the pilot survey process this compound drug produces poisoning to wild cabbage.
four, the composite field control effectiveness test to rice hoppers of methoxyfenozide and MTI-446.
This embodiment is for preventing and treating rice hoppers, investigation insect population radix before dispenser, after medicine, 3d, 7d, 10d investigate respectively residual borer population alive, investigation Shi Mei community is undertaken by parallel jump method, investigate 20 points, 2 clumps every, shake or pat the rice clump, between statistics rice clump, the plant hopper quantity of floating on water, calculate control efficiency.
The control efficiency computational methods are as follows: control efficiency (%)=(1-CK
1* Pt
1/ CK
2* Pt
2) * 100
Wherein: CK
1represent the front insect population number of check plot medicine; Pt
1represent insect population number after the treatment region medicine; CK
2represent insect population number after the medicine of check plot; Pt
2represent the front insect population number for the treatment of region medicine.
Table 4, respectively process the result of the test of chemical control rice hoppers.
As can be seen from Table 4,20% methoxyfenozide MTI-446 suspending agent (2% methoxyfenozide: 18% MTI-446) along with the increase of the using dosage control efficiency to rice hoppers obviously promotes; When preparation mu consumption is the 30-35 gram, 3d, 7d after medicine, 10d all obviously are better than each single dose to the preventive effect of rice hoppers to be used separately, after medicine, the 10d preventive effect all still reaches more than 80% simultaneously, illustrate that this compound drug has lasting effect preferably, do not find that in the pilot survey process this compound drug produces poisoning to paddy rice.
In sum, the present invention adopts the complex composition that two kinds of active components are methoxyfenozide and MTI-446, has synergistic function.With existing unitary agent, compare, insecticidal effect obviously improves, and the lasting period is long, to crop safety, is worth applying in agricultural production.
Claims (4)
1. a methoxyfenozide and MTI-446 composition pesticide, it is characterized in that: comprise the first active ingredient methoxyfenozide and the second active ingredient MTI-446 and auxiliary element commonly used, wherein methoxyfenozide and the MTI-446 weight ratio in composition is 20
:1～1
:40, methoxyfenozide and the MTI-446 gross weight percentage composition in composition is 0.5～80%.
2. methoxyfenozide according to claim 1 and MTI-446 composition pesticide is characterized in that: the formulation when practical application is a kind of in suspending agent, aqueous emulsion, microemulsion, granule, water dispersible granules or wetting powder.
3. methoxyfenozide according to claim 1 and MTI-446 composition pesticide, is characterized in that: be applicable to prevent and treat rice grub and vegetable-crop pest-insect.
4. methoxyfenozide according to claim 3 and MTI-446 composition pesticide, it is characterized in that: described rice grub is striped rice borer, paddy stem borer, rice leaf roller and rice fulgorid; Described vegetable-crop pest-insect is prodenia litura, beet armyworm, diamond-back moth, cabbage caterpillar, aphid, aleyrodid, thrips.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106689149A (en) * | 2015-07-20 | 2017-05-24 | 江苏龙灯化学有限公司 | Insecticide composition |
| CN114946874A (en) * | 2022-06-10 | 2022-08-30 | 广西壮族自治区农业科学院 | Insecticidal pesticide composition for preventing and treating citrus thrips |
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|---|---|---|---|---|
| US20080125319A1 (en) * | 2003-04-28 | 2008-05-29 | Monsanto Technology, Llc | Treatment of plants and plant propagation materials with an antioxidant to improve plant health and/or yield |
| CN102246803A (en) * | 2011-08-18 | 2011-11-23 | 南宁市德丰富化工有限责任公司 | Dinotefuran-containing insecticide |
-
2013
- 2013-08-20 CN CN201310362510.9A patent/CN103461371B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080125319A1 (en) * | 2003-04-28 | 2008-05-29 | Monsanto Technology, Llc | Treatment of plants and plant propagation materials with an antioxidant to improve plant health and/or yield |
| CN102246803A (en) * | 2011-08-18 | 2011-11-23 | 南宁市德丰富化工有限责任公司 | Dinotefuran-containing insecticide |
Non-Patent Citations (1)
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|---|
| 徐映明: "《简明农药问答》", 30 June 2013, 化学工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106689149A (en) * | 2015-07-20 | 2017-05-24 | 江苏龙灯化学有限公司 | Insecticide composition |
| CN114946874A (en) * | 2022-06-10 | 2022-08-30 | 广西壮族自治区农业科学院 | Insecticidal pesticide composition for preventing and treating citrus thrips |
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