CN1325626A - Methomyl abamectin microemulsion - Google Patents
Methomyl abamectin microemulsion Download PDFInfo
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- CN1325626A CN1325626A CN 01120238 CN01120238A CN1325626A CN 1325626 A CN1325626 A CN 1325626A CN 01120238 CN01120238 CN 01120238 CN 01120238 A CN01120238 A CN 01120238A CN 1325626 A CN1325626 A CN 1325626A
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- methomyl
- avermectin
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Abstract
A kind of insecticide composition in micro emulsion type mainly consists of methoyl 10-30%, abamectin 0.1-2%, solubilizing agent 5-30%, and emulsifying agent 5-20%, water 20-80%. The micro emulsion is a strong absorbable insecticide with high efficiency and low toxicity. It has very good preventing and killing effect to diamondback moth on mustard family, moreover, it is effective to some other destructive insects with stab absorbed type. Acrape absorbed type mouth parts, sucbas aphid, thrips, white louse, mite.
Description
Technical field
The present invention relates to a kind of agricultural chemicals, relate in particular to a kind of Methomyl avermectin micro-emulsion.
Background technology
Diamond-back moth [Plutella xylastella (L.)] belongs to Lepidoptera, and diamond-back moth section is distributed in the whole world, takes place generally in African, Europe, America and Asia, and all there is generation China each province, but takes place more with southern each province.Diamond-back moth is mainly got food crucifer, some other plants such as tomato, ginger, potato of also can causing harm.Diamond-back moth is with the larva blade of causing harm, and first instar larvae can pierce leaf tissue and get food mesophyll, and the epidermis and the mesophyll of promptly gnawing leaf slightly greatly form a transparent spot.3～4 instar larvaes are got food and are caused hole and incise, and serious delicacies of the season leaf is eaten to reticulate, and reduces the edibility of dish.At vegetable sprout term, often concentrate lobus cardiacus to cause harm, influence the bag heart of wild cabbage, Chinese cabbage, the tender stem of can causing harm again simultaneously, young pod and seed cause very big threat to the rape and the dish of reserving seed for planting.Untimely as control in recent years in south, cause the serious underproduction, even plough replanting.The medicine of control diamond-back moth is based on missible oil at present.
At present, be liquid formulation comparatively easily in the use of pesticidal preparations, use for a long time at most, the widest be missible oil.In the process of processing missible oil, need a large amount of organic solvents, as benzene,toluene,xylene etc.A large amount of uses of organic solvent not only cause the waste of industrial chemicals, simultaneously, return environment and human health and have brought very big threat.In recent years, proposed to forbid the part organic solvent in minority developed countries such as the U.S..Therefore, exploitation reduces or gets rid of the new liquid formulation of these organic solvents, has become a kind of imperative trend, and wherein Water-borne modification is exactly one of dominant direction of formulations of pesticide development.And new pesticide processing method also can increase new feature to agricultural chemicals, more can give full play to the action characteristic of former medicine self, overcome and remedy or cover the deficiency of the intrinsic formulation of former medicine, improve physico chemistry and biological property, enlarge range of application, prolong the service life of medicament.
Microemulsion is a kind of new liquid formulation of developing in recent years, belongs to a kind of of aqueous emulsion, and it is medium with water, act on water-fast effective active component by dispersion, emulsification etc., by homogenize technology, it is dispersed in the water, form the thermodynamic stable system of oil-in-water type.Disperse phase is liquid-drop diameter≤0.1 μ m after homogenize, so appearance transparent, physics, chemical stability are good, and is strong to plant and insect tissue cell permeability, the absorption ratio height, and preventive effect is good.Simultaneously, have production, storing and safe in utilization, environmental pollution is little, helps the improvement of ecotope.
Methomyl belongs to carbamates wide spectrum systemic insecticide, acetylcholinesteraseinhibitors inhibitors, have tag, stomach poison function.Its insecticidal spectrum is wide, and effect is applicable to the insect on the various crop such as control fruit tree, vegetables, cotton, clover, tobacco, lawn, as aphid, thrips, mythimna separata, alfalfa weevil, codling moth, cotton bollworm, the snout moth's larva of rice, plant hopper etc. rapidly.Methomyl is degraded easily in environment, and is environmentally safe.Avermectin (have another name called Olivomitecidin, like make every effort to overcome mite etc., english common name abamectin) has mite class and insect tags and stomach poison function, and the horizontal infiltration conduction is arranged.Its mechanism of action is different with general insecticide, mainly is the neurophysiology activity of interference insect, stimulates to discharge γ-An Jidingsuan, suppresses the conduction of the nerve impulse of insect.Certain osmosis is arranged on the plant tissue blade,, in environment, do not have accumulation easily by biological degradation.Avermectin can be prevented and treated diptera, coleoptera, Homoptera, Lepidoptera and the mite pest on gardening, fruit tree, the crops, and the lasting period is long, and the antagonism insect has special efficacy.
The present invention provides a kind ofly has preferably control efficiency to diamond-back moth, reduces consumption, the Methomyl of corresponding minimizing environmental pollution and the microemulsion of abamectin compounded agricultural chemicals of organic solvent.
Summary of the invention
The Methomyl avermectin micro-emulsion, its each constituent and percentage by weight thereof are: Methomyl 10～30%, Avermectin 0.1～2%, cosolvent 5～30%, emulsifier 5～20%, water 20～80%.
The described cosolvent of the invention described above can be any one or two or more combination of phenmethylol, dimethyl formamide, ethanol, cyclohexane, acetone, cyclohexanone and cosolvent known in those skilled in the art.
The described emulsifier of the invention described above can be a farming breast 500
#, farming breast 1600
#, 2201,700
#, Tween-80, Tx-10,0201, AEO-9 and emulsifier known in those skilled in the art any two or three combination.
The invention described above microemulsion, its each constituent and percentage by weight thereof are: Methomyl 10～30%, Avermectin 0.1～2%, cosolvent 5～30%, emulsifier 5～20%, bleeding agent 0.5～2%, water 20～80%.
The described bleeding agent of the invention described above can be that bleeding agent can be that bleeding agent can be sldium lauryl sulfate, alkylsulfonate, alkylbenzenesulfonate, lauryl alcohol sodium sulphate, Negel, sodium lignin sulfonate, alkylphenol polyoxyethylene, fatty alcohol polyoxy second: alkene ether, azone, alkyl benzyl dimethyl oronain, alkyl amine oxide and bleeding agent known in those skilled in the art any one or wherein any two kinds combination.
The invention described above microemulsion can also contain synergist, and its percentage by weight is: Methomyl 10～30%, Avermectin 0.1～2%, cosolvent 5～30%, emulsifier 5～20%, bleeding agent 0.5～2%, synergist 0.5～10%, water 20～80%.
The described synergist of the invention described above can be any one of piperonyl butoxide, Octachlorodipropyl Ether, azone and synergist known in those skilled in the art, and the purpose that adds synergist is in order to improve control efficiency.
The invention described above microemulsion can also contain stabilizing agent, and its percentage by weight is: Methomyl 10～30%, Avermectin 0.1～2%, cosolvent 5～30%, emulsifier 5～20%, bleeding agent 0.5～2%, synergist 0.5～10%, stabilizing agent 0.5～10%, water 20～80%.
The described stabilizing agent of the invention described above microemulsion can be in ethylene glycol, polyethylene glycol, urea and the glycerine and any one of stabilizing agent known in those skilled in the art; The adding stabilizing agent can increase the physics and the chemical stability of microemulsion.
The production method of the invention described above microemulsion, comprise Methomyl and Avermectin are dissolved in the cosolvent, drop into emulsifier (dropping into synergist and stabilizing agent when needing again) then, stir, put into then and mix strongly in the homogenizer that dispersion medium water is housed and homogenize, obtaining outward appearance at last is limpid transparent Methomyl avermectin micro-emulsion.
Advantage that the present invention has and beneficial effect: (1), the present invention have very strong synergy preventive and therapeutic effect to diamond-back moth, enlarge control spectrum in addition, can prevent and treat other insect on vegetables, fruit tree, the cotton such as thrips, aphid, cabbage caterpillar, aleyrodid, scale insect, peach fruit borer, oriental fruit moth, beet flea beetle, colorado potato beetle, two spotted spider mite, codling moth, cotton bollworm, some mite classes etc.; (2), storage-stable of the present invention is good; (2), the present invention is strong to adhesiveness and the permeability of plant; (3), the present invention reduced consumption of organic solvent, environmental pollution is few, and is safe in utilization; (4), production technology of the present invention is simple, equipment is easy and simple to handle.
Embodiment:
Embodiment 1, Methomyl 15kg and Avermectin 0.5kg are dissolved among the cyclohexanone 10kg, drop into 700 then
#6kg, AEO-9 7kg, JFC 0.5kg stir, and put into then and mix strongly in the homogenizer that dispersion medium water 61kg is housed and homogenize, obtain 15.5% Methomyl avermectin micro-emulsion at last.Aforementioned microemulsion dilution is sprayed for 1000 times, according to the method for EXPERIMENTAL EXAMPLE 1, is 95% to the preventive effect of diamond-back moth in medication one day after, and seven days preventive effects are 87% after the medication.With 1500 times of liquid controls of microemulsion longan angle cheek wood louse that the present invention produces, dispenser as a result after three days preventive effect be that preventive effect is 91.6% after 94%, seven day.
Embodiment 2: Methomyl 20kg and Avermectin 0.5kg are dissolved in DMF 10kg, among the cyclohexanone 5kg, drop into 700 then
#7kg, Tween-80 6.5kg, azone 0.5kg stir, and put into then and mix strongly in the homogenizer that dispersion medium water 50.5kg is housed and homogenize, obtain 20.5% Methomyl avermectin micro-emulsion at last.The dilution of aforementioned microemulsion is sprayed for 1500 times, according to the method for EXPERIMENTAL EXAMPLE 1, the result after medication-day be 96.5% to the thrips preventive effects of vegetables, seven days preventive effects are 88.4% after the medication.
Embodiment 3: Methomyl 15kg and Avermectin 0.3kg are dissolved among the cyclohexanone 10kg, drop into 500 then
#5.5kg, AEO-9 6kg, azone 0.5kg stir, and puts into then and mix strongly in the homogenizer that dispersion medium water 62.7kg is housed and homogenize, obtains 15.3% Methomyl avermectin micro-emulsion at last.The dilution of aforementioned microemulsion is sprayed for 1500 times, and according to the method for EXPERIMENTAL EXAMPLE 1, medication as a result was 87.6% to the trialeurodes vaporariorum preventive effect on the tomato after one day, medication after seven days preventive effect be 82.9%.
Embodiment four: 1000 times of liquid of microemulsion of producing with embodiment 1,500 times of liquid are observed the poisoning to various vegetables, the result shows that this medicine to wild cabbage, leaf mustard, cabbage mustard, logical dish, spinach, cowpea, cucumber, tomato, capsicum, leek, green onion, pea poisoning does not take place all, and is safe in utilization on these crops.
The field control effectiveness test of EXPERIMENTAL EXAMPLE 1 20% Methomyl avermectin micro-emulsion control diamond-back moth
This is tested in 2000 and carries out in the radish field of two another arenaes, farm, the north of the Changjiang River, Jingzhou City, Hubei Province, and physical features is smooth, fertile soil, and test is established 3 processing, 4 and is repeated to amount to 12 sub-districts, sub-district area 33.3m
2, district's group is arranged at random, the 7-8 leaf phase in the radish growth, spray with swan SWS-14 type high-pressure sprayer, and spouting liquid is 600kg/hm
25 samplings in every sub-district, investigation insect population radix before the medicine was investigated residual borer population respectively on the 1st, 3,7 day behind the medicine, calculated go down rate and proofread and correct preventive effect of insect population, the results are shown in Table 1:
The field control effectiveness test result (mean) of table 1 20% Methomyl avermectin micro-emulsion control diamond-back moth
| Handle | Radix before the medicine | Behind the medicine 1 day | Behind the medicine 3 days | Behind the medicine 7 days | ||||||
| Residual borer population | The rate that goes down (%) | Proofread and correct preventive effect (%) | Residual borer population (%) | The rate that goes down (%) | Proofread and correct preventive effect (%) | Residual borer population | The rate that goes down (%) | Proofread and correct preventive effect (%) | ||
| ?A | ?85 | ?52 | ?38.8 | ?32.8 | ?35 | ?58.8 | ?64.0 | ?14 | ?83.5 | ?86.8 |
| ?B | ?91 | ?60 | ?34.1 | ?30.0 | ?44 | ?51.6 | ?52.1 | ?23 | ?74.7 | ?76.3 |
| ?AB | ?93 | ?61 | ?34.4 | ?26.1 | ?36 | ?61.3 | ?64.0 | ?23 | ?75.3 | ?73.8 |
A:20% Methomyl avermectin micro-emulsion (19.7+0.3) 1000X wherein
B:90% Methomyl soluble powder 3000X
AB:1.8% abamectin emulsifiable concentrate 3000X
EXPERIMENTAL EXAMPLE 2 20% Methomyl avermectin micro-emulsion synergism tests
Leaf dipping method is adopted in this test, according to the preliminary experiment result each medicine series concentration gradient is set, 30 left and right sides diamondback moth larvaes of every processing, triplicate.Also in the soup for preparing, soaked 10 seconds with fresh free of contamination cabbage heart, behind the hang airing, connect health, uniform diamond-back moth 2-3 instar larvae, put in the glass dish, raise under the same conditions, check the death condition of examination worm after 48 hours.The standard of judging dead worm is to touch polypide with tweezers, does not have any reactor and is judged to death.Calculate its lethality at last, corrected mortality, virulence regression equation and LC thereof
50Its CTC value 〉=120 of result of the test show to have synergistic effect (seeing Table 2).
Table 2 20% Methomyl avermectin micro-emulsion synergism test result
A:20% methomyl milk oil (Hexian Pesticide Factory,Anhui Province) wherein
| Reagent agent | Regression equation (Y=a+bx) | Correlation coefficient (r) | ?LC 50?(ppm) | The CTC value |
| ????A | Y=-0.2355+2.4506x | ?0.9391 | ?136.90 | ????- |
| ????B | Y=3.5960+4.8833x | ?0.9956 | ?1.94 | ????- |
| ????AB 1 | Y=0.1436+2.7431x | ?0.9649 | ?58.94 | ????136.9 |
| ????AB 2 | Y=-0.9877+2.7080x | ?0.9225 | ?43.40 | ????154.3 |
| ????AB 3 | Y=-0.1684+3.1207x | ?0.9412 | ?45.31 | ????126.3 |
B:0.9% acetamiprid missible oil 9 (Beijing Agricultural University test pharmaceutical factory)
AB
1: 20% Methomyl avermectin micro-emulsion (19.6+0.4)
AB
2: 20% Methomyl avermectin micro-emulsion (19.7+0.3)
AB
3: 20% Methomyl avermectin micro-emulsion (19.8+0.2)
(AB
1, AB
2, AB
3Be the preparation of the general letter of Shenzhen promise farmingization Co., Ltd)
Claims (9)
1, Methomyl avermectin micro-emulsion is characterized in that by Methomyl 10～30%, Avermectin 0.1～2%, and cosolvent 5～30%, emulsifier 5～20%, water 20～80% is formed.
2, microemulsion according to claim 1 is characterized in that described cosolvent can be the combination of any one or two kinds among phenmethylol, dimethyl formamide, ethanol, cyclohexane, acetone, the cyclohexanone.
3, microemulsion according to claim 1 is characterized in that described emulsifier can be a farming breast 500
#, 1600
#,, 2201,700
#, any two or three among the Tween-80, Tx-10,0201, AEO-9 combination.
4, microemulsion according to claim 1 is characterized in that also containing bleeding agent, and each weight percentages of components is: Methomyl 10～30%, Avermectin 0.1～2%, cosolvent 5～30%, cosolvent 5～30%, emulsifier 5～20%, bleeding agent 0.5～2%, water 20～80%.
5, microemulsion according to claim 4 is characterized in that described bleeding agent can be sldium lauryl sulfate, alkylsulfonate, alkylbenzenesulfonate, lauryl alcohol sodium sulphate, Negel, sodium lignin sulfonate, alkylphenol polyoxyethylene, fatty alcohol polyoxy second: any one in alkene ether, azone, alkyl benzyl dimethyl oronain, the alkyl amine oxide or any two kinds combination.
6, microemulsion according to claim 4 is characterized in that also containing synergist, and each weight percentages of components is: Methomyl 10～30%, Avermectin 0.1～2%, cosolvent 5～30%, emulsifier 5～20%, bleeding agent 0.5～2%, synergist 0.5～10%, water 20～80%.
7, microemulsion according to claim 6 is characterized in that described synergist can be the combination of any one or two kinds in piperonyl butoxide, Octachlorodipropyl Ether, the azone.
8, microemulsion according to claim 6, it is characterized in that to contain stabilizing agent, its percentage by weight is: Methomyl 10～30%, Avermectin 0.1～2%, cosolvent 5～30%, emulsifier 5～20%, bleeding agent 0.5～2%, synergist 0.5～10%, stabilizing agent 0.5～10%, water 20～80%.
9, microemulsion according to claim 6 is characterized in that described stabilizing agent can be any one in ethylene glycol, polyethylene glycol, urea and the glycerine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01120238 CN1325626A (en) | 2001-07-11 | 2001-07-11 | Methomyl abamectin microemulsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01120238 CN1325626A (en) | 2001-07-11 | 2001-07-11 | Methomyl abamectin microemulsion |
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| Publication Number | Publication Date |
|---|---|
| CN1325626A true CN1325626A (en) | 2001-12-12 |
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|---|---|---|---|
| CN 01120238 Pending CN1325626A (en) | 2001-07-11 | 2001-07-11 | Methomyl abamectin microemulsion |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014043431A (en) * | 2012-08-27 | 2014-03-13 | Maruwa Biochemical Co Ltd | Soil nematode control agent containing macrolide-based compound |
| CN109769871A (en) * | 2019-03-20 | 2019-05-21 | 青岛市农业科学研究院 | A kind of biological pesticide pest repellant |
-
2001
- 2001-07-11 CN CN 01120238 patent/CN1325626A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014043431A (en) * | 2012-08-27 | 2014-03-13 | Maruwa Biochemical Co Ltd | Soil nematode control agent containing macrolide-based compound |
| CN109769871A (en) * | 2019-03-20 | 2019-05-21 | 青岛市农业科学研究院 | A kind of biological pesticide pest repellant |
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