CN101473842A - Insecticidal composition - Google Patents
Insecticidal composition Download PDFInfo
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- CN101473842A CN101473842A CNA2009100009414A CN200910000941A CN101473842A CN 101473842 A CN101473842 A CN 101473842A CN A2009100009414 A CNA2009100009414 A CN A2009100009414A CN 200910000941 A CN200910000941 A CN 200910000941A CN 101473842 A CN101473842 A CN 101473842A
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Abstract
The invention provides an insecticidal composition for controlling the sanitary insect pests such as mosquitoes, flies, blattella germanica, and the like. The insecticidal composition comprises a component (A) dichlor dimefluthrin and a component (B) 2, 3, 5, 6-tetrafluoro-4-methoxyl methyl benzyl-3-(3, 3, 3-trifluoro-propenyl)-2, 2-dimethyl propane carboxylate, wherein, the mass ratio between the component (A) and the component (B) is 1:20 to 99:1. The coil type mosquito repellent incenses, the electric mosquito-repellent mats, the electric mosquito repellent vaporizer, the insecticide aerosol and other products which are prepared by using the insecticidal composition have the advantages of rapid killing to the insect pests and long-term drug effect.
Description
Technical field
The present invention relates to a kind of Pesticidal combination, and the application aspect sanitary insect pests such as control mosquito, fly, Groton bug.
Background technology
Pyrethroid coumpound can be used to prevent and treat mosquito, and has higher insecticidal activity, and this is widely known by the people.Because it has efficiently, low toxicity, low-residual, environment compatibility are good, obtained application widely in the prevention and control field of sanitary insect pest.But along with the growth of service time, mosquitos and flies has produced certain resistance (Gao Xiwu etc., Chinese media biology and control magazine, 2004,15 (2), 105) to some traditional pyrethroid products (as allethrin) etc.
The inventor has formed the fluorine-containing pyrethroid compound of a series of novelties by the structure of modification to traditional pyrethroid acid, alcohol moiety.Improved resistance risk, the noval chemical compound test of pesticide effectiveness shows to have excellent insecticidal activity simultaneously, is several times and even two, the thirtyfold of traditional allethrin insecticidal activity.
(CN200810132612.0)
But in actual use because the vapour pressure of chlorine fluorine ether chrysanthemum ester is lower, and it is slower to volatilize, not ideal enough to the down effect of insects such as mosquitos and flies at the use initial stage, only fully its lethal effect of volatilization back is remarkable for some time, and the characteristics of superior activity just can embody.The present inventor is by the screening compounded formula, if find with component (B) 2,3,5,6-tetrafluoro-4-methoxy benzyl-2,2-dimethyl-3-(3,3,3-three fluoro-acrylic) cyclopropanecarboxylcompound and chlorine fluorine ether chrysanthemum ester are used, the volatilization of component (B) chrysanthemum ester is fast, knock down advantage rapidly and can remedy the above-mentioned deficiency of chlorine fluorine ether chrysanthemum ester, also observing component (B) chrysanthemum ester simultaneously has significant synergistic effect to chlorine fluorine ether chrysanthemum ester, than single component (A) more lasting drug effect and better lethal effect is arranged.
Summary of the invention
The invention provides a kind of Pesticidal combination of preventing and treating sanitary insect pests such as mosquito, fly, Groton bug, comprising component (A) 2,3,5, and 6-tetrafluoro-4-methoxyl methyl benzyl (1R, 3S)-3-(2, the 2-dichloroethylene)-2,2-dimethyl cyclopropane carboxylic acid ester (chlorine fluorine ether chrysanthemum ester), and as shown in the formula represented component (B) 2,3,5,6-tetrafluoro-4-methoxy benzyl-3-(3,3,3-three fluoro-acrylic)-2,2-dimethyl cyclopropane carboxylic acid ester.In this Pesticidal combination (A) component with (B)
The mass ratio of component is 1%～99%:99%～1%; Component (B) can be the single optical isomer that has insecticidal activity arbitrarily represented of this structural formula or their mixture, be preferably dextrorotation trans 2,3,5, and 6-tetrafluoro-4-methoxy benzyl (1R, 3S)-3-(3,3,3-three fluoro-acrylic)-2,2-dimethyl cyclopropane carboxylic acid ester.
Use this Pesticidal combination to prepare disc type insecticidal incense, electric mosquito repellent tablet, electric liquid device and insect aerosol product, be used for the place that sanitary insect pests such as mosquito, fly, Groton bug haunt, the effect of reach control, killing.
Below the application in preparation various forms insecticide is described in detail to this Pesticidal combination:
(1) preparation disc type insecticidal incense
Described disc type insecticidal incense is mixed with Pesticidal combination to join behind the liquid form and makes in the base material, and wherein Pesticidal combination content is 0.01-2.0w/w%.
The liquid form that Pesticidal combination of the present invention is mixed with is missible oil or is the solution of solvent with kerosene.
Described missible oil can add water and admix in the disc type insecticidal incense base material when preparation base material (fragrant base), forms the disc type insecticidal incense of the The compounds of this invention that contains above-mentioned concentration, then oven dry.Also contain surfactant and other auxiliary agents in the described missible oil; The example of described surfactant comprises one or more mixtures in alkyl sulfate, alkylsulfonate, alkylaryl sulfonates, polyoxyalkylene alkyl, polyoxyalkylene alkyl aryl ether, polyoxyalkylene styryl phenyl ether, polyol ethers or the sugar alcohol derivant; The example of described other auxiliary agents comprises one or more the mixture in aromatic, colouring agent or the bactericide.
The base material of described disc type insecticidal incense is made up of one or more inflammable substances and one or more adhesives, and wherein the weight ratio of inflammable substance and adhesive is 90:10 to 99.9:0.1.The example of inflammable substance comprises the plant drymeal that is selected from wood powder, Dalmatian chrysanthemum extraction powder, citrus peel meal, palm oil-bound distemper, coconut shell powder or walnut parting, or is selected from the carbon dust of charcoal powder, activated carbon powder or coal dust, or their mixture; The example of adhesive comprises the polymer of starch, casein, methylcellulose, carboxymethyl cellulose or polyvinyl alcohol of being selected from tapioca, corn starch or wheaten starch and composition thereof.
Described disc type insecticidal incense base material normally by mixing inflammable substance and adhesive, is mediated with water, moulding and oven dry preparation.The shape of disc type insecticidal incense base material can be plate-like or strip without limits.The present invention uses about 12cm of diameter and the thickness conventional coil shape base material as 3-5mm usually in two line spices of a cover.
(2) preparation electric mosquito repellent tablet
Described electric mosquito repellent tablet is will contain the solution dropping of Pesticidal combination and/or be coated on the porosity base material to make, and the content of Pesticidal combination is the 1.0-20mg/ sheet in the described anti-mosquito incense sheet.Also contain the additive that is selected from antioxidant, stifling conditioning agent, spices or dyestuff in the described solution that contains Pesticidal combination.
The example of the porous substrate of described electric mosquito repellent tablet comprises paper pulp, asbestos, synthetic porous resin, porous, inorganic powder, glass fibre, mineral dust or porous ceramic material; Described porous substrate is long 30-35mm, wide 20-22mm, the sheet of thick 1.5-2mm.An example that is used for porous pad of the present invention is the sheet that contains the paper pulp fiber of the cotton fiber of 50% weight and 50% weight, from absorbability with keep the viewpoint of insecticidal active ingredient, preferably uses the natural fiber material film-making.
(3) preparation electric liquid device
Described electric liquid device is that Pesticidal combination is dissolved in the aliphatic hydrocarbon, adds the antioxidant of optional 0.1-0.5w/w% then, and 0.1-1w/w% spices is mixed with the solution that contains the 0.1-2w/w% Pesticidal combination and makes; The aliphatic hydrocarbon of the preferred C14 component of described aliphatic hydrocarbon.
Electric liquid device liquid is by the capillarity of plug, mosquito-repellent incense liquid is taken to the top of new edition from the bottom of plug, under the electrical heating effect of ring heater, after making the active ingredient in space reach certain concentration, just can be to mosquito, fly, sanitary insect pests such as Groton bug produce to be stimulated, drives and lethal effect, thereby reach mosquito, fly, the control of sanitary insect pests such as Groton bug.
(4) preparation insect aerosol
Described insect aerosol is that the composition that Pesticidal combination, kerosene and synergist, aromatic and/or the bactericide according to circumstances selected mix under room temperature or heating condition is added in the jar that a valve is housed, and under pressure, in jar, add propellant by this valve and make, the content of final Pesticidal combination is 0.005-0.5w/w%; Described propellant accounts for the 20-60% of composition total weight; Preferred liquefied petroleum gas, third butane, dimethyl ether or compressed air, further preferred third butane.
When insect aerosol of the present invention is used in the habitat of insect, by-pass valve control is opened, under the pressure effect of propellant, produce high velocity air, jar is included the soup aerosol dispersion of active ingredient and the gasification of propellant, the small liquid pearl that contains effective insecticidal constituent of formation is suspended in the air, with mosquito, fly, sanitary insect pests such as Groton bug contact, and reach the purpose of quick kill pests.
Based on above-mentioned achievement in research, the present invention proposes and comprise component (A) 2,3,5, and 6-tetrafluoro-4-methoxyl methyl benzyl (1R, 3S)-3-(2, the 2-dichloroethylene)-2,2-dimethyl cyclopropane carboxylic acid ester (chlorine fluorine ether chrysanthemum ester), and component (B) 2,3,5,6-tetrafluoro-4-methoxy benzyl-3-(3,3,3-three fluoro-acrylic)-2, the Pesticidal combination of 2-dimethyl cyclopropane carboxylic acid ester is being killed mosquito, fly, the application of sanitary insect pest aspects such as Groton bug, and concrete application mode has been proposed.Component (B) chrysanthemum ester has significant synergistic effect to chlorine fluorine ether chrysanthemum ester, than single component chlorine fluorine ether more lasting drug effect and better lethal effect is arranged.Through experiment, proved that the various insecticides of Pesticidal combination preparation of the present invention have remarkable prevention effect to housefly, Culex pipiens pallens, Groton bug etc.
Embodiment
Explain the present invention in detail with the form of embodiment below, but the present invention is not limited to following examples.
Application Example 1
Add the water of 120 weight portions and mediate in the mixture of corn starch, carbon dust and the wood powder (1:5:4) of 99.96 weight portions and be shaped, oven dry forms line spices shape disc type insecticidal incense base materials (diameter 12.0cm, thick 4mm, a counterweight 40g) then.
On the other hand, with 2 of the chlorine fluorine ether chrysanthemum ester of 0.35 weight portion, 0.05 weight portion, 3,5, and 6-tetrafluoro-4-methoxy benzyl (1R, 3S)-3-(3,3,3-three fluoro-acrylic)-2,2-dimethyl cyclopropane carboxylic acid ester is dissolved in and obtains chloride fluorine ether 0.35w/v% in the kerosene, the solution of component (B) chrysanthemum ester 0.05w/v%.
On this cover disc type insecticidal incense base material, evenly drip the above-mentioned solution of 4ml, at room temperature place 3 hours then to obtain the disc type insecticidal incense I that a cover has 0.035w/w% chlorine fluorine ether chrysanthemum ester, 0.005w/w% component (B) chrysanthemum ester with microsyringe.
Reference embodiment 1
Add the water of 120 weight portions and mediate in the mixture of corn starch, carbon dust and the wood powder (1:5:4) of 99.96 weight portions and be shaped, oven dry forms line spices shape mosquito-repellent incense base materials (diameter 12.0cm, thick 4mm, a counterweight 40g) then.
On the other hand, the 0.4w/v% solution of preparation tetrafluoro methothrin in kerosene.
On this cover line spices base material, evenly drip the above-mentioned solution of 4ml, at room temperature place 3 hours then to obtain the disc type insecticidal incense II that a cover has 0.04w/w% tetrafluoro methothrin with microsyringe.
Test implementation example 1
The coiled mosquito-repellent incense of Application Example 1 and reference example 1 is carried out kill mosquito evaluation of pesticide effectiveness contrast according to GB13917.4-92, and the examination worm is a Culex pipiens pallens, and the 2-3 days female mosquitos of not sucking blood in back sprout wings; Detailed process is to draw 20 examination mosquitos with mosquito sucking tube, put into airtight drum testing arrangement, appoint and get one section of tested mosquito-repellent incense, put to fragrant frame, light timing, remove mosquito-repellent incense behind the 1min, write down down and out examination mosquito number at set intervals, to all be transferred in the dependent insect cage of cleaning behind the 20min, check dead examination mosquito number behind the 24hr for the examination mosquito.
Experimental result sees Table 1:
The comparison of table 1. Pesticidal combination thing of the present invention and control compounds effect exterminating mosquito
| The disc type insecticidal incense | Active ingredient | Concentration w/w% | KT50(min) | 24h lethality (%) |
| Disc type insecticidal incense I | The chrysanthemum ester of chlorine fluorine ether chrysanthemum ester+(B) | 0.035+0.005 | 3.82 | 100 |
| Disc type insecticidal incense II | The tetrafluoro methothrin | 0.04 | 4.35 | 95 |
The result shows, Pesticidal combination of the present invention have a very high insecticidal activity, be better than the tetrafluoro methothrin.
Application Example 2
With containing 3mg chlorine fluorine ether chrysanthemum ester, 1mg 2,3,5, and 6-tetrafluoro-4-methoxy benzyl (1R, 3S)-3-(3,3,3-three fluoro-acrylic)-2,2-dimethyl cyclopropane carboxylic acid ester, the long 35mm of preparation dipping of 10mg BHT (2,6 di tert butyl 4 methyl phenol) and 0.5mg dyestuff, wide 22mm, the porous pad of thick 2mm (cotton fiber: 50% percentage by weight, paper pulp fiber: 50% percentage by weight), placed 3 days under the room temperature, make electric mosquito repellent tablet I.
Reference embodiment 2
With containing 4mg chlorine fluorine ether chrysanthemum ester, 10mg BHT (2, the 6-di-tert-butyl-4-methy phenol) and the long 35mm of the preparation of 0.5mg dyestuff dipping, wide 22mm, the porous pad of thick 2mm (cotton fiber: 50% percentage by weight, paper pulp fiber: 50% percentage by weight), placed 3 days under the room temperature, make electric mosquito repellent tablet II.
Reference embodiment 3
With containing 4mg tetrafluoro methothrin, 10mg BHT (2, the 6-di-tert-butyl-4-methy phenol) and the long 35mm of the preparation of 0.5mg dyestuff dipping, wide 22mm, the porous pad of thick 2mm (cotton fiber: 50% percentage by weight, paper pulp fiber: 50% percentage by weight), placed 3 days under the room temperature, make electric mosquito repellent tablet III.
Test implementation example 2
Application Example 2 of the present invention is carried out the evaluation of pesticide effectiveness of mosquito is contrasted according to GB13917.5-92 with reference embodiment 2,3, adopt airtight drum device.Detailed process is as follows.With electric mosquito repellent tablet sample energising preheating 1h, 2h, 4h, 6h, 8h draws 20 female culex pipiens fatigans with mosquito sucking tube, puts into airtight drum testing arrangement, accurately smoked kill 1min, clock simultaneously, cut off the electricity supply after smoking, and remove the electric mosquito repellent tablet device, write down down and out examination mosquito number at regular intervals.The results are shown in Table 2:
The comparison of the electric mat of table 2. Pesticidal combination preparation of the present invention and the electric mat effect exterminating mosquito of one-component chrysanthemum ester
The result shows that (B) component chrysanthemum ester has significant synergistic effect to chlorine fluorine ether chrysanthemum ester in the Pesticidal combination of the present invention, and Pesticidal combination of the present invention is more lasting than the routine drug effect of reference.
Application Example 3
The heating under with 2 of 0.35 weight portion chlorine fluorine ether chrysanthemum ester and 0.05 weight portion, 3,5, and 6-tetrafluoro-4-methoxy benzyl (1R, 3S)-3-(3,3,3-three fluoro-acrylic)-2,2-dimethyl cyclopropane carboxylic acid ester, 0.3 weight portion BHT, 0.3 the spices of weight portion, the n-tetradecane of 99.0 weight portions lump together and are prepared into mosquito liquid.Can becomes electric liquid device then, wherein chloride fluorine ether chrysanthemum ester 0.35w/w%, and 2,3,5,6-tetrafluoro-4-methoxy benzyl (1R, 3S)-3-(3,3,3-three fluoro-acrylic)-2,2-dimethyl cyclopropane carboxylic acid ester 0.05w/w%.
Application Example 4
The heating under with 2 of 0.2 weight portion chlorine fluorine ether chrysanthemum ester and 0.2 weight portion, 3,5, and 6-tetrafluoro-4-methoxy benzyl (1R, 3S)-3-(3,3,3-three fluoro-acrylic)-2,2-dimethyl cyclopropane carboxylic acid ester, 0.3 weight portion BHT, 0.3 the spices of weight portion, the n-tetradecane of 99.0 weight portions lump together and are prepared into mosquito liquid.Can becomes electric liquid device then, wherein chloride fluorine ether chrysanthemum ester 0.2w/w%, and 2,3,5,6-tetrafluoro-4-methoxy benzyl (1R, 3S)-3-(3,3,3-three fluoro-acrylic)-2,2-dimethyl cyclopropane carboxylic acid ester 0.2w/w%.
Test implementation example 3
Application Example of the present invention 3,4 is carried out the evaluation of pesticide effectiveness according to GB13917.6-92, adopt airtight drum device.Detailed process is as follows: with electric liquid device sample energising 2h, 36h, 84h, 168h, 336h, draw 20 female culex pipiens fatigans with mosquito sucking tube, put into airtight drum testing arrangement, accurately smoked kill 1min, clock simultaneously, cut off the electricity supply after smoked, and remove the electric liquid device device, write down down and out examination mosquito number at regular intervals.The results are shown in Table 3:
The vaporizer mosquito liquid effect exterminating mosquito of table 3. the present invention preparation
The result shows: the electric liquid device of the present invention's preparation has good effect exterminating mosquito.
Application Example 5
The heating under with 2,3,5 of 0.55 weight portion chlorine fluorine ether chrysanthemum ester, 0.05 weight portion, 6-tetrafluoro-4-methoxy benzyl (1R, 3S)-3-(3,3,3-three fluoro-acrylic)-2, the kerosene of 2-dimethyl cyclopropane carboxylic acid ester and 59.4 weight portions mixes a kind of insecticidal preparation of preparation.The preparation that obtains is put into the aerosol jar, on jar a valve is housed, and inject 40.0 weight portions, third butane adding to depress by this valve, to obtain a kind of insect aerosol, wherein chloride fluorine ether chrysanthemum ester 0.55w/w%, 2,3,5,6-tetrafluoro-4-methoxy benzyl (1R, 3S)-3-(3,3,3-three fluoro-acrylic)-2,2-dimethyl cyclopropane carboxylic acid ester 0.05w/w%.
Test implementation example 4
Test implementation example 4 of the present invention is carried out mosquito according to GB13917.2-92, fly, the efficacy testing of Groton bug adopts airtight drum device.Detailed process is as follows: will put into cylinder for the examination insect; after waiting to try worm recovery normal activity; metered injection 1g medicament from insect aerosol jar of the present invention; extracting baffle plate behind the 1min out makes the examination worm contact with medicament; down and out examination borer population is write down in timing immediately, and opening entry at regular intervals; to all be transferred in the dependent insect cage of cleaning behind the 20min, check dead examination borer population behind the 24h for the examination worm.Wherein Groton bug is checked the 72h lethality.The results are shown in Table 4:
The insect aerosol of table 4. Pesticidal combination of the present invention preparation is to mosquito, fly, the insect killing effect of Groton bug
| Insect | KT50 (mosquito/fly/cockroach) | 24 hours lethality |
| Mosquito | 4.25 minute | 100％ |
| Fly | 5.22 minute | 100％ |
| Groton bug | 5.98 minute | 100％(72h) |
The result shows: the aerosol of the present invention's preparation is to mosquito, and fly, Groton bug have good insect killing effect.
Claims (5)
1. a Pesticidal combination is characterized in that comprising component (A) 2,3,5, and 6-tetrafluoro-4-methoxyl methyl benzyl (1R, 3S)-3-(2, the 2-dichloroethylene)-2,2-dimethyl cyclopropane carboxylic acid ester (chlorine fluorine ether chrysanthemum ester), and as shown in the formula represented component (B) 2,3,5,6-tetrafluoro-4-methoxy benzyl-3-(3,3,3-three fluoro-acrylic)-2,2-dimethyl cyclopropane carboxylic acid ester.
2. Pesticidal combination according to claim 1, it is characterized in that (A) component in this Pesticidal combination: (B) component (mass ratio) is 1%～99%:99%～1%.
3. Pesticidal combination according to claim 1 is characterized in that this Pesticidal combination is applied to prevent and treat mosquito, fly or Groton bug.
4. the application of control mosquito, fly or Groton bug according to claim 3 is characterized in that this Pesticidal combination is prepared into various forms of insecticides, comprises disc type insecticidal incense, electric mosquito repellent tablet, electric liquid device or insect aerosol.
5. according to the described application that prevents and treats mosquito, fly, Groton bug of claim 4, it is characterized in that lighting the disc type insecticidal incense in the habitat or the place of haunting of sanitary insect pests such as mosquito, fly, Groton bug, heating electric mosquito repellent tablet, electric liquid device or sprinkling insect aerosol, the Pesticidal combination volatilization is diffused in the air, to reach the purpose of preventing and kill off sanitary insect pest.
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| JP2002145828A (en) * | 2000-11-06 | 2002-05-22 | Sumitomo Chem Co Ltd | Ester compound and pest-controlling agent comprising the same as active ingredient |
| JP2005298477A (en) * | 2004-03-17 | 2005-10-27 | Sumitomo Chemical Co Ltd | Method for producing insecticidal incense stick, and insecticidal incense stick |
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| JP2011116739A (en) * | 2009-10-30 | 2011-06-16 | Sumitomo Chemical Co Ltd | Harmful organism-controlling composition and method for controlling harmful organism |
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