CN112056322A - Sanitary insecticidal composition containing chlorenthrin and application thereof - Google Patents
Sanitary insecticidal composition containing chlorenthrin and application thereof Download PDFInfo
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- CN112056322A CN112056322A CN201910499315.8A CN201910499315A CN112056322A CN 112056322 A CN112056322 A CN 112056322A CN 201910499315 A CN201910499315 A CN 201910499315A CN 112056322 A CN112056322 A CN 112056322A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N53/00—Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof
Abstract
The invention relates to a sanitary insecticidal composition containing empenthrin and application thereof. The composition contains permethrin and specific knock-down fluorine-containing pyrethroid with the weight ratio of 1: 99-99: 1; the specific knockdown fluorine-containing pyrethroid is transfluthrin, permethrin, meperfluthrin or metofluthrin. Compared with single preparation, the composition has unexpected toxicity and synergy, improves the insecticidal effect, has the synergy coefficient of more than 130, particularly has excellent knockdown and killing effects on pyrethroid-resistant sanitary pests, and is very suitable for preventing and controlling indoor and outdoor sanitary pests.
Description
Technical Field
The invention relates to the field of sanitary insecticides, in particular to a sanitary insecticidal composition containing permethrin and application thereof.
Technical Field
Pyrethroid compounds are known to be useful for controlling sanitary pests and have high pesticidal activity. For a long time, agents for controlling sanitary pests have been essentially single agents of pyrethroids or combinations of knock-down pyrethroids with lethal pyrethroids. The knock-down pyrethroid mainly comprises allethrin, esbiothrin, bioallethrin, tetramethrin, prallethrin, empenthrin, permethrin, transfluthrin, permethrin, chlorofluoroethenthrin, transfluthrin, metofluthrin, heptaflumethrin, and esfenprox; the lethal pyrethroid mainly comprises phenothrin, permethrin, resmethrin, cyphenothrin, d-cyphenothrin, cypermethrin, beta-cypermethrin, alpha-cypermethrin, cyfluthrin, beta-cyfluthrin, fenvalerate, cyfluvalinate, flumethrin, cyhalothrin, deltamethrin, tefluthrin, cycloprothrin, silafluofen and the like; the combination of knock-down pyrethroids and lethal pyrethroids, which are different in their mode of action, enables the composition to have both excellent fast-acting property and excellent lethality, which is well known to those skilled in the art. The combination of knockdown pyrethroids is only the electrothermal mosquito-repellent incense piece and mosquito-repellent incense which volatilize the effective components into the air to exert insecticidal activity at present, the difference of volatilization speeds of different knockdown agents is utilized to realize that the volatile knockdown agent in the early heating stage provides the main insecticidal effect, the knockdown agent which is difficult to volatilize in the later heating stage provides the main insecticidal effect, the combination of the two knockdown agents is used for balancing the insecticidal effects in the early and later stages, such as bioallethrin and transfluthrin compounded electrothermal mosquito-repellent incense piece, chlorofluoroether and transfluthrin compounded electrothermal mosquito-repellent incense piece, propargyl and chlorofluoroether compounded electrothermal mosquito-repellent incense piece, allylene and transfluthrin compounded mosquito-repellent incense and the like, the combination only utilizes the difference of vapor pressures and volatilization speeds of the two knockdown agents, can exert knockdown effects in different volatilization time periods, has no improvement in insecticidal toxicity, except the combination, at present, no knockdown agent is compounded through toxicity synergism.
The applicant finds that the combination of the prallethrin and the specific knockdown fluorine-containing pyrethroid has unexpected toxicity synergism through a large number of pharmacodynamic tests. By using a mixture of the prallethrin and the specific knockdown fluorine-containing pyrethroid with a certain compounding ratio, the insecticidal activity is superior to that of any one compound used alone, and the compound is particularly suitable for preventing and treating sanitary pests which have resistance to conventional pyrethroid single or compound agents and organophosphorus and carbamate insecticides, and can realize dual benefits in the aspects of economy and mammalian safety.
The compound composition has the characteristics of high efficiency, low toxicity and low irritation, is suitable for preventing and treating indoor and outdoor sanitary pests by a spraying method, particularly has excellent knockdown and death-causing performance on dipteran mosquitoes, and is greatly improved in the aspects of high efficiency, low toxicity, quick effect and resistance control compared with the existing sanitary insecticidal composition.
Object of the Invention
The invention aims to provide an insecticidal composition which contains chlorenthrin and a specific knockdown pyrethroid insecticide, particularly a specific knockdown fluorine-containing pyrethroid compound insecticidal composition, has good insecticidal effect, low toxicity and low irritation, has remarkable synergistic effect after compounding, and can delay the drug resistance of sanitary pests.
In order to realize the purpose of the invention, the technical scheme of the invention is as follows:
the sanitary insecticidal composition containing the prallethrin is characterized by comprising the prallethrin and specific knock-down fluorine-containing pyrethroid in a weight ratio of 1: 99-99: 1; the specific knockdown fluorine-containing pyrethroid pesticide is transfluthrin [ namely 2,3,5, 6-tetrafluorobenzyl-3- (2, 2-dichlorovinyl) -2, 2-dimethylcyclopropanecarboxylate ], tetramethrin [ namely 2,3,5, 6-tetrafluoro-4-methoxymethylbenzyl-3- (2-methyl-1-propenyl) -2, 2-dimethylcyclopropanecarboxylate ], fluroxypyr-mepthrin [ namely 2,3,5, 6-tetrafluoro-4-methoxymethylbenzyl-3- (2, 2-dichlorovinyl) -2, 2-dimethylcyclopropanecarboxylate ], trimethoprim [ namely 2,3,5, 6-tetrafluoro-4-methoxymethylbenzyl-3- (1-propenyl) -2, 2-dimethylcyclopropanecarboxylate ].
The preferred specific knockdown fluorine-containing pyrethroid is transfluthrin or permethrin.
Preferably, in the sanitary insecticidal composition, the weight ratio of the two is 1: 50-50: 1; more preferably, the weight ratio of the two is 1: 20-20: 1; more preferably, the weight ratio of the two is 1: 5-20: 1; most preferably 5: 1.
Furthermore, the formulation of the sanitary insecticidal composition is missible oil, aqueous emulsion, microemulsion, hot fogging concentrate, wettable powder, aqueous suspension, suspending emulsion, microcapsule suspension-suspension or water dispersible granule, and in the formulation, the dosage of the active ingredient is 5-50 wt%; preferably emulsifiable concentrates and aqueous emulsions.
Further, the invention also provides the application of the sanitary insect killing composition in preventing and controlling sanitary insect pests, which is characterized in that the sanitary insect pests are cockroaches, fleas, ants, bugs, mosquitoes and flies; preferably sanitary mosquitoes and flies. Especially culex pipiens pallens.
Compared with the prior art, the invention has the beneficial effects that:
(1) compared with a single agent, the insecticidal composition has unexpected synergistic effect on pests, improves knockdown and lethal effects, and has the synergistic coefficient of more than 130, even more than 200;
(2) the sanitary insecticidal composition has the characteristics of low toxicity, high efficiency and no stimulation, and is particularly suitable for preventing and controlling the sanitary pests generating resistance to the conventional pyrethroid and organophosphorus;
(3) after the special pyrethroid is compounded, the requirements of the sanitary insecticide on quick-acting performance and lethal activity are met, and the insecticide is very suitable for preventing and treating sanitary pests;
(4) the composition consists of active ingredients with similar insecticidal mechanisms, has unique synergistic mode, and is beneficial to reducing and enhancing the pesticide;
(5) the novel compound composition is added to the field of domestic sanitary pesticides, has obvious pesticide effect and can be widely popularized and applied.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to limit the invention to these embodiments. It will be appreciated by those skilled in the art that the present invention encompasses all alternatives, modifications and equivalents as may be included within the scope of the claims.
First, preparation example
All formulations are referred to as "%" in the following formulations.
Formulation examples 1 to 9:
according to the compounding proportion and the dosage of the prallethrin and the transfluthrin in the table-1, the auxiliary materials are 30g of methyl oleate, 5g of calcium dodecyl benzene sulfonate, 10g of castor oil polyoxyethylene ether and the balance of odorless kerosene, and the missible oil preparation examples 1-9 are prepared.
TABLE-1 formulations examples 1 to 9
| Example numbering | Permethrin | Tetrakis-methyl-phenothrin | Compounding ratio |
| 1 | 0.1g | 9.9g | 1:99 |
| 2 | 0.196g | 9.804g | 1:50 |
| 3 | 0.476g | 9.524g | 1:20 |
| 4 | 1.667g | 8.333g | 1:5 |
| 5 | 5.0g | 5.0g | 1:1 |
| 6 | 8.333g | 1.667g | 5:1 |
| 7 | 9.524g | 0.476g | 20:1 |
| 8 | 9.804g | 0.196g | 50:1 |
| 9 | 9.9g | 0.1g | 99:1 |
Formulation examples 10 to 18:
according to the compounding proportion and the dosage of the permethrin and the dimefluthrin in the table-2, the auxiliary materials comprise 30g of methyl oleate, 5g of calcium dodecyl benzene sulfonate, 10g of castor oil polyoxyethylene ether and the balance of odorless kerosene, and the missible oil preparation examples 1-9 are prepared.
TABLE-2 formulation examples 10 to 18
| Example numbering | ChloroalkynesPyrethrin | Tetrafluoromethane ethofenprox | Compounding ratio |
| 10 | 0.1g | 9.9g | 1:99 |
| 11 | 0.196g | 9.804g | 1:50 |
| 12 | 0.476g | 9.524g | 1:20 |
| 13 | 1.667g | 8.333g | 1:5 |
| 14 | 5.0g | 5.0g | 1:1 |
| 15 | 8.333g | 1.667g | 5:1 |
| 16 | 9.524g | 0.476g | 20:1 |
| 17 | 9.804g | 0.196g | 50:1 |
| 18 | 9.9g | 0.1g | 99:1 |
Formulation example 19:
8.333g of chlorenylyne, 1.667g of meperfluthrin, 30g of methyl oleate as auxiliary materials, 5g of calcium dodecylbenzene sulfonate, 10g of castor oil polyoxyethylene ether and tasteless kerosene in balance to prepare an emulsifiable solution comparative example 19.
Formulation example 20:
8.333g of chloroalkyne, 1.667g of metofluthrin, 30g of methyl oleate serving as auxiliary materials, 5g of calcium dodecyl benzene sulfonate, 10g of castor oil polyoxyethylene ether and tasteless kerosene in balance to prepare the missible oil of comparative example 20.
Formulation example 21:
1.5g of prallethrin, 8.5g of Meperfluthrin, 3.0g of detergent LS, 7.0g of naphthalenesulfonate formaldehyde condensate, 3.0g of lignosulfonate, 0.3g of citric acid, 8.0g of white carbon black and 100g of kaolin are supplemented, and the wettable powder preparation example 21 is prepared after airflow pulverization.
Formulation example 22:
the microemulsion preparation of example 22 was prepared by adding 4.0g of prallethrin, 6.0g of transfluthrin, 5.0g of calcium dodecylbenzenesulfonate, 15.0g of block polyether emulsifier, 25.0g of cyclohexanone to 100g of water.
Formulation example 23:
18.0g of prallethrin, 2.0g of tetramethrin, 3g of sodium dodecyl sulfate, 6g of naphthalenesulfonate formaldehyde condensate, 6.0g of polycarboxylate dispersant, 0.3g of citric acid, 6.0g of white carbon black and kaolin are complemented to 100g, and the mixture is mixed, crushed and granulated to obtain the water dispersible granule preparation example 23.
Formulation example 24:
9.5g of prallethrin, 0.5g of metofluthrin, 20g of tasteless kerosene, 3.0g of calcium dodecylbenzene sulfonate, 6.0g of castor oil polyoxyethylene ether, 5.0g of glycol and water are mixed and sheared to prepare the emulsion in water preparation example 24.
Formulation example 25:
2.5g of prallethrin, 1.5g of tetramethrin, 15g of methyl oleate and tasteless kerosene D80 were added to make up to 100%, and the mixture was dissolved and mixed to prepare a hot fogging formulation example 25.
Formulation example 26:
1.5g of metofluthrin is added into 2.0g of fatty alcohol-polyoxyethylene ether and dissolved by 8.5g of methyl oleate, and the obtained mixture is mixed with 4.0g of tristyrylphenol polyoxyethylene ether phosphate triethanolamine salt, 0.5g of octylphenol polyoxyethylene ether, 8.5g of prallethrin, 0.3g of xanthan gum, 5.0g of ethylene glycol and 0.5g of potassium sorbate and ground to prepare a suspension emulsion preparation of example 26.
Formulation example 27:
2.0g of transfluthrin is adsorbed by 3.0g of white carbon black, 13.0g of prallethrin, 1.0g of fatty alcohol-polyoxyethylene ether, 2.0g of polycarboxylate, 2.0g of block polyether emulsifier, 0.3g of xanthan gum, 5.0g of ethylene glycol and 0.5g of potassium sorbate are mixed and ground to prepare the suspending agent preparation example 27.
Formulation example 28:
dissolving 4.0g of meperfluthrin, 6.0g of methyl oleate, 0.5g of diphenylmethane diisocyanate and 0.5g of toluene diisocyanate uniformly, adding the rest into an aqueous solution containing 1% of polyvinyl alcohol, shearing for 10min, slowly dropwise adding 0.2g of tetraethylenepentamine, stirring at 45 ℃, preserving heat and curing for 6h, adjusting the pH to 6.5 after the reaction is finished, and then uniformly stirring with 16% of chlorempenthrin suspending agent prepared by an equivalent conventional method to obtain the microcapsule suspension-suspending agent preparation in the embodiment 28.
Comparative example 1:
10g of prallethrin, 30g of methyl oleate, 5g of calcium dodecyl benzene sulfonate as auxiliary materials, 10g of castor oil polyoxyethylene ether and tasteless kerosene for complement to prepare the missible oil comparative example 1.
Comparative example 2:
10g of transfluthrin, 30g of methyl oleate, 5g of calcium dodecyl benzene sulfonate as auxiliary materials, 10g of castor oil polyoxyethylene ether and tasteless kerosene for complement to prepare the missible oil comparative example 2.
Comparative example 3:
10g of tetramethrin, 30g of methyl oleate, 5g of calcium dodecyl benzene sulfonate, 10g of castor oil polyoxyethylene ether and tasteless kerosene for complement as auxiliary materials to prepare the missible oil of comparative example 3.
Comparative example 4:
8.333g of prallethrin, 1.667g of d-trans-chloropropynthrin [ 2-methyl-3- (2-propargyl) -4-oxo-cyclopent-2-enyl-3-trans- (2, 2-dichlorovinyl) -d-2, 2-dimethylcyclopropanecarboxylate ], and 30g of methyl oleate, 5g of calcium dodecylbenzenesulfonate, 10g of castor oil polyoxyethylene ether and a tasteless kerosene in balance to prepare the emulsifiable concentrate of comparative example 4.
Comparative example 5:
8.333g of prallethrin, 1.667g of cypermethrin [ alpha-cyano-3-phenoxybenzyl (SR) -3- (2, 2-dichlorovinyl) -2, 2-dimethylcyclopropane carboxylate) -dextro-2, 2-dimethylcyclopropane carboxylate ], and 30g of methyl oleate, 5g of calcium dodecylbenzenesulfonate, 10g of castor oil polyoxyethylene ether and a supplemental amount of odorless kerosene were added as auxiliary materials to prepare an emulsifiable concentrate of comparative example 4.
Comparative example 6:
8.333g of prallethrin, 1.667g of allylpyrethrin [ 3-allyl-2-methyl-4-oxocyclopent-2-enyl-3- (2-methyl-1-propenyl) -2, 2-dimethylcyclopropanecarboxylate ], and 30g of methyl oleate, 5g of calcium dodecylbenzene sulfonate, 10g of castor oil polyoxyethylene ether, and a supplemental amount of odorless kerosene were added to prepare an emulsifiable concentrate of comparative example 6.
Comparative example 7:
8.333g of prallethrin, 1.667g of tetrafluoethrin [2,3,5, 6-tetrafluoro-4-methoxymethyl benzyl-2, 2,3, 3-tetramethyl cyclopropane carboxylate ], 30g of methyl oleate, 5g of calcium dodecylbenzene sulfonate, 10g of castor oil polyoxyethylene ether and a balance of odorless kerosene were added as auxiliary materials to prepare an emulsifiable concentrate of comparative example 7.
Comparative example 8:
8.333g of prallethrin, 1.667g of heptafluoromethyl ether pyrethrin [2,3,5, 6-tetrafluoro-4-methoxymethyl benzyl-3- (3,3, 3-trifluoro-1-propenyl) -2, 2-dimethyl cyclopropane carboxylate ], and 30g of methyl oleate, 5g of calcium dodecyl benzene sulfonate, 10g of castor oil polyoxyethylene ether and a supplemental amount of odorless kerosene were added as auxiliary materials to prepare an emulsifiable concentrate of comparative example 8.
Comparative example 9:
10g of meperfluthrin, 30g of methyl oleate, 5g of calcium dodecyl benzene sulfonate as auxiliary materials, 10g of castor oil polyoxyethylene ether and tasteless kerosene in balance to prepare the missible oil comparative example 9.
Comparative example 10:
10g of metofluthrin, 30g of methyl oleate, 5g of calcium dodecyl benzene sulfonate as auxiliary materials, 10g of castor oil polyoxyethylene ether and tasteless kerosene for complement to prepare the missible oil comparative example 10.
Comparative example 11:
10g of right-handed trans-propargyl chloride, 30g of methyl oleate, 5g of calcium dodecyl benzene sulfonate as auxiliary materials, 10g of castor oil polyoxyethylene ether and tasteless kerosene for complement to prepare the missible oil comparative example 11.
Comparative example 12:
10g of allethrin, 30g of methyl oleate serving as auxiliary materials, 5g of calcium dodecyl benzene sulfonate, 10g of castor oil polyoxyethylene ether and tasteless kerosene for complement to prepare the missible oil comparative example 12.
Comparative example 13:
10g of tetrafluoro ethofenprox, 30g of methyl oleate, 5g of calcium dodecyl benzene sulfonate as auxiliary materials, 10g of castor oil polyoxyethylene ether and tasteless kerosene for complement to prepare missible oil comparative example 13.
Comparative example 14:
10g of heptafluoromethyl ether pyrethrin, 30g of methyl oleate as auxiliary materials, 5g of calcium dodecyl benzene sulfonate, 10g of castor oil polyoxyethylene ether and tasteless kerosene in balance to prepare the missible oil comparative example 14.
Comparative example 15:
10g of cypermethrin, 30g of methyl oleate, 5g of calcium dodecyl benzene sulfonate, 10g of castor oil polyoxyethylene ether and tasteless kerosene in balance to prepare the missible oil comparative example 15.
II, application embodiment:
application example 1: indoor bioactivity test of culex pipiens pallens
Reference to indoor bioassay test guidelines for pesticides part 1: contact killing activity test A drop method NY/T1154.1-2006 is used for carrying out an activity determination test on culex pipiens pallens, the LD is calculated according to the proportion of preparation examples 1-950. The measurement results are shown below (Table-3).
TABLE-3 results of measurements of application examples
| Numbering | Active ingredient | Ratio of | LD50(μg/♀) |
| Formulation example 1 | Alphan chloride and transfluthrin | 1:99 | 1.02×10-3 |
| Formulation example 2 | Alphan chloride and transfluthrin | 1:50 | 0.98×10-3 |
| Formulation example 3 | Alphan chloride and transfluthrin | 1:20 | 0.94×10-3 |
| Formulation example 4 | Alphan chloride and transfluthrin | 1:5 | 0.97×10-3 |
| Formulation example 5 | Alphan chloride and transfluthrin | 1:1 | 0.93×10-3 |
| Formulation example 6 | Alphan chloride and transfluthrin | 5:1 | 0.88×10-3 |
| Formulation example 7 | Alphan chloride and transfluthrin | 20:1 | 1.25×10-3 |
| Formulation example 8 | Alphan chloride and transfluthrin | 50:1 | 1.65×10-3 |
| Formulation example 9 | Alphan chloride and transfluthrin | 99:1 | 2.03×10-3 |
| Comparative example 1 | Permethrin | 2.38×10-3 | |
| Comparative example 2 | Tetrakis-methyl-phenothrin | 1.26×10-3 | |
| Comparative example 4 | Permethrin + d-trans-chlorpromazine | 5:1 | 2.14×10-3 |
| Comparative example 5 | Permethrin and cypermethrin | 5:1 | 1.12×10-3 |
| Comparative example 10 | D-trans-chlorpropyrifos pyrethrin | 0.45×10-3 | |
| Comparative example 15 | Cypermethrin | 0.23×10-3 |
By applying each compounding example LD in example 150And single dose LD50The calculation method refers to the method for calculating the combined toxicity of the mixture through the toxicity index of the Sun Yunpei, and calculates the co-toxicity coefficient, wherein the calculation result is as follows (Table-4).
Table-4 determination of co-toxicity coefficient of the formulations of the present invention:
test results show that when the compounding ratio of the chlorempenthrin to the transfluthrin is 1: 50-50: 1, the chlorempenthrin and transfluthrin have obvious synergistic effect. Particularly, when the compounding ratio of the chlorempenthrin to the transfluthrin is 1: 5-20: 1, the synergistic effect is more obvious, particularly, when the compounding ratio is 5:1, the co-toxicity coefficient is more than 200, and when the compounding ratio of the chlorempenthrin to the transfluthrin is 1: 99-20: 1, the chlorempenthrin and transfluthrin have better insecticidal activity than any single agent.
We also test the compound effect of the d-trans-clothrin which has the same structure of the permethrin and the transfluthrin chrysanthemic acid and different structure of the chrysanthemic alcohol but is the knock-down agent, the co-toxicity coefficient is only 64.8, and the composition has no synergy and also shows certain antagonistic effect; when the empenthrin is compounded with the lethal pyrethroid cypermethrin, the co-toxicity coefficient is only 83.1, and the synergistic effect cannot be shown.
Application example 2: indoor bioactivity test of culex pipiens pallens
Reference to indoor bioassay test guidelines for pesticides part 1: contact killing activity test drop method NY/T1154.1-2006 for culex pipiens pallensPerforming activity measurement test, calculating LD according to the proportion of preparation examples 10-1850. The measurement results are shown below (Table-5).
TABLE-5 results of measurement of application examples
By applying each compounding example LD in example 150And single dose LD50The calculation method refers to the method for calculating the combined toxicity of the mixture through the toxicity index of the Sun Yunpei, and calculates the co-toxicity coefficient, and the calculation result is as follows (Table-6).
Table-6 determination of co-toxicity coefficient of the formulations of the present invention:
test results show that when the compounding ratio of the permethrin to the tetramethrin is 1: 50-99: 1, the permethrin and the tetramethrin have obvious synergistic effect. Particularly, when the compounding ratio of the prallethrin to the tetramethrin is 1: 5-50: 1, the synergistic effect is more obvious, particularly, the compounding ratio is 5: 1-20: 1, the co-toxicity coefficient is more than 200, and when the compounding ratio of the prallethrin to the transfluthrin is 1: 99-5: 1, the compound has better insecticidal activity than any single agent.
We also tested the compounding effect of the permethrin and the allethrin which has the same part as the tetramethrin and the same part as the chrysanthemic acid and different part of the chrysanthemic alcohol, when the compounding ratio is 5:1, the co-toxicity coefficient is 74.8, and antagonism is still shown.
The same as the transfluthrin and the same as the tetramethrin and the same as the chrysanthemic alcohol, but different from the chrysanthemic acid, when the permethrin and the permethrin are compounded and the compounding ratio is 5:1, the co-toxicity coefficients are respectively 108.3 and 82.8, and the synergistic effect is not shown.
The test results of the application example 1 and the application example 2 show that the combination of the prallethrin and the transfluthrin or the tetramethrin has obviously better synergistic effect compared with other knockdown pyrethroids and lethal pyrethroids.
In addition, when the permethrin is compounded with the chlorine fluorine ethofenprox and the metofluthrin, the similar synergistic effect is also realized, and the specific table is as follows:
table-7 determination of co-toxicity coefficient of the formulations of the present invention:
application example 3: indoor efficacy test for preventing and controlling mosquitoes and flies
The test method comprises the following steps: refer to GB/T13919.1-2009 pesticide registration sanitary insecticide indoor pesticide effect test and evaluation, spray test.
Experimental treatment: the formulation examples and comparative examples were each used diluted 100-fold with water.
The test results were as follows (Table-8):
TABLE-8 test results of mosquito and fly efficacy (spraying method)
The results of the above indoor efficacy tests show that the prallethrin has good knockdown activity for culex pipiens and houseflies with general lethal activity; after the permethrin is compounded with the knockdown pyrethroid transfluthrin, tetramethrin, meperfluthrin and metofluthrin, compared with the comparative knockdown pyrethroid D-trans-chlorpromazine, allethrin, meperfluthrin and heptafluomethrin, the knockdown performance is greatly improved, the lethal activity is obviously improved, and even the equivalent and even better lethal effect is achieved when the permethrin is compounded with the lethal pyrethroid cypermethrin.
The sanitary insecticidal composition containing prallethrin and the specific knockdown fluorine-containing pyrethroid and the application thereof have been described by specific examples, and the corresponding other objects can be achieved by appropriately changing the raw materials, the process conditions, the compounding combination or the proportion of the active ingredients and the like by a person skilled in the art by referring to the content of the invention, and the related changes do not depart from the content of the invention, and all similar substitutions and modifications are obvious to the person skilled in the art and are considered to be included in the scope of the invention.
Claims (8)
1. The sanitary insecticidal composition containing the prallethrin is characterized by comprising the prallethrin and specific knock-down fluorine-containing pyrethroid in a weight ratio of 1: 99-99: 1; the specific knockdown fluorine-containing pyrethroid is transfluthrin, permethrin, meperfluthrin or metofluthrin.
2. A sanitary insecticidal composition as claimed in claim 1, wherein said specific knockdown pyrethroid is transfluthrin or permethrin.
3. A pesticidal composition according to claim 1, wherein the weight ratio of the two components is 1:50 to 50: 1.
4. A pesticidal composition according to claim 1, wherein the weight ratio of the two components is 1:5 to 20: 1.
5. A pesticidal composition according to claim 1, wherein the weight ratio of the two components is 5: 1.
6. A sanitary insecticide composition as claimed in any one of claims 1 to 5, wherein said sanitary insecticide composition is in the form of a spray-type emulsifiable concentrate, an aqueous emulsion, a microemulsion, a hot fogging concentrate, a wettable powder, an aqueous suspension, a suspoemulsion, a microcapsule suspension-suspension or a water dispersible granule, and the active ingredient is present in the formulation in an amount of 1 to 50% by weight.
7. The use of the sanitary insecticidal composition according to any one of claims 1 to 5 for controlling sanitary pests, characterized in that the sanitary pests are cockroaches, fleas, ants, bugs, mosquitoes and flies.
8. Use according to claim 7, characterized in that the sanitary pest is culex pipiens pallens.
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| CN114903050A (en) * | 2021-02-07 | 2022-08-16 | 江苏扬农化工股份有限公司 | Insecticidal composition containing permethrin and beta-cypermethrin and application thereof |
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| CN114903050A (en) * | 2021-02-07 | 2022-08-16 | 江苏扬农化工股份有限公司 | Insecticidal composition containing permethrin and beta-cypermethrin and application thereof |
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