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GB2095109A - Insecticidal compositions - Google Patents

Insecticidal compositions Download PDF

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Publication number
GB2095109A
GB2095109A GB8107324A GB8107324A GB2095109A GB 2095109 A GB2095109 A GB 2095109A GB 8107324 A GB8107324 A GB 8107324A GB 8107324 A GB8107324 A GB 8107324A GB 2095109 A GB2095109 A GB 2095109A
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GB
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Patent type
Prior art keywords
compositions
composition
diluted
insecticidal
pyrethroid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB8107324A
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GB2095109B (en )
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wellcome Foundation Ltd
Original Assignee
Wellcome Foundation Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/02Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N53/00Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof

Abstract

Aqueous insecticidal spray compositions comprise one or more pyrethroid insecticides and a fatty alkanol, such as 1-hexadecanol.

Description

SPECIFICATION Insecticidal compositions This invention relates to novel insecticidal compositions.

Insecticidal sprays find widespread use in controlling insert pests in domestic, industrial and agricultural environments. Sprays are formed by the atomisation of e.g. a solution, suspension or emulsion of an insecticide in a liquid carrier. Conventional liquid carriers include (a) very volatile carriers such as the propellant in pressurised aerosol compositions, (b) water and (c) volatile (non-propellant) and involatile oils. Compositions using oils as the carrier often suffer from the disadvantages of malodour, flammability, toxicity, irritation, and the like.

Water-based sprays avoid many of the disadvantages associated with oil-based sprays, in that they are generally non-flammable, cheaper, and the carrier (i.e. water) does not contribute to the other problems mentioned above in respect of oil-based sprays.

It is known that the activity of insecticidal sprays depends in part on the size of the droplets in the spray; droplets in a particular size range are more effective against insects than smaller or larger droplets. The size of the droplets produced by atomisation are determined by the physical properties of the formulation and the spraying equipment used, so that it is possible to produce a spray having droplet sizes in the ideal size range for highest activity. However, the droplets may change size after they have been produced due evaporation of the liquid carrier.

If the original size of the droplets is within the range which produces the highest level of activity, then this high level of activity can be maintained for considerable periods if evaporation can be inhibited.

It is an object of this invention to provide aqueous insecticidal spray compositions which give rise to droplets which are resistant to evaporation, and which can therefore show improved activity.

Accordingly this invention provides insecticidal compositions comprising one or more pyrethroid insecticides and a long-chain fatty alkanol.

The compositions of the invention may be in the form of a concentrate which is diluted with water before use, or may be in water-diluted form, ready for application (hereinafter 'the diluted form'). In either case, the concentration of the fatty alkanol will be such that the concentration of alkanol in the -diluted form is from 0.01 to 2%, preferably from 0.02 to 1% by weight.

The preferred fatty alkanol is 1-hexadecanol.

Pyrethroid insecticides which may be used in the compositions of the invention include natural and synthetic pyrethroids, such as pyrethrins, allethrin, bioallethrin, S-bioallethrin, esbiothrin, tetramethrin, tetramethrin forte, permethrin, cypermethrin, deltamethrin, cyhalothrin, resmethrin, bioresmethrin, phenothrin, cypothrin, fluvalinate, terallethrin, fenvalerate, kadethrin, esters such as the 3-phenoxybenzyl and a-cyano-3-phenoxybenzyl esters of 3-(1 ,2,2,2-tetrahaloethyl)-2,2dimethylcyclopropanecarboxylic acids, and the like. If desired, two or more pyrethroids may be used in the compositions, for example, a 'knockdown' pyrethroid such as bioallethrin and a 'kill' pyrethroid such as permethrin.

A pyrethroid synergist, such as piperonyl butoxide, may also be included in the compositions if desired.

Further insecticidally active ingredients may be present in the compositions, such as organophosphorus, organochlorine or carbamate insecticides.

The active ingredients will be present in the diluted form of the compositions in amounts conventionally used in insecticidal formulations; for example from 0.001 to 3%, such as 0.1 to 2% by weight.

If desired, the compositions may contain other ingredients known in the insecticide formulating art, such as wetting agents, emulsifiers, stabilisers, odourants, solvents, and the like.

The compositions of the invention can be used to control insert pests; accordingly, a further aspect of the invention provides a method for the control of insect pests; accordingly, a further aspect diluted form of a composition of the invention in the pests' environment.

This method can be used to control flies, mosquitoes, etc.

The following examples illustrate the invention, but should not be construed as a limitation thereof.

EXAMPLES 1-3 Concentration (% w/w) Ingredient Example 1 Example 2 Example 3 Permethrin 10.8 12.5 Tetramethrin 5.0 S-bioallethrin 1.7 - 2.4 Bioresmethrin - 14.7 Piperonyl butoxide 12.3 15.0 15.0 Nonylphenol ethylene oxide condensate 8.2 8.5 7.5 Calcium dodecyl benzenesulphonate 4.3 4.0 5.0 Mineral oil 20.0 20.0 20.0 Butylated hydroxyanisole - 2.5 Kerosene 41.2 32.5 30.4 1 -Hexadecanol 1.0 2.0 2.0 Perfume 0.5 0.5 0.5 100.0 100.0 100.0 The compositions of Examples 1 and 2 may be diluted 1 O-fold and that of Example 3 7.5-fold (by volume) with water to produce a diluted form suitable for atomisation to provide effective insect control.

EXAMPLE 4 The formulation of Example 1 was diluted 1 O-fold with water and was atomised in a closed room at a level of 0.167 mg total pyrethroids m-3. Houseflies (mixed sexes) were then released in the room, and collected 5 minutes later. The flies were provided with food and kept for 24 hours, after which time mortality was assessed.

This procedure was repeated using a corresponding formulation (1-hexadecanol replaced by additional 1% kerosene) diluted 1 O-fold with Diesel oil.

Four replicates using each formulation were obtained.

The aqueous formulation with 1 -hexadecanol produced the same level of mortality as the Diesel formulation.

Claims (10)

1. An insecticidal composition comprising one or more pyrethroid insecticides and a long-chain fatty alkanol.
2. A composition as claimed in claim 1 wherein the concentration of the fatty alkanol in the diluted form (as hereinbefore defined) is from 0.2 to 1% by weight.
3. A composition according to claim 1 or claim 2 wherein the fatty alkanol is 1-hexadecanol.
4. A composition according to any preceding claim wherein the pyrethroid insecticide is selected from one or more of pyrethrins, allethrin, bioallethrin, S-bioallethrin, tetramethrin, tetramethrin forte, permethrin, cypermethrin, deltamethrin, cyhalothrin, esbiothrin, resmethrin, bioresmethrin, phenothrin, cypothrin, fluvalinate, terallethrin, fenvalerate, kadethrin and the 3-phenoxybenzyl and a-cyano-3phenoxybenzyl esters of 3-( 1 ,2,2,2-tetrahaloethyl)-2,2-dimethylcyclopropanecarboxylic acids.
5. A composition according to any preceding claim, which composition comprises a pyrethroid synergist.
6. A composition according to claim 5 wherein the pyrethroid synergist is piperonyl butoxide.
7. A composition according to any preceding claim, which composition comprises one or more ingredients selected from wetting agents, emulsifiers, stabilisers, odourants and solvents.
8. A method for the control of insect pests comprising the atomisation of the diluted form of a composition as defined in any preceding claim in the pests' environment.
9. A method according to claim 8 wherein the insect pests are flies or mosquitoes.
10. An insecticidal composition substantially as herein described with particular reference to the Examples.
GB8107324A 1981-03-09 1981-03-09 Insecticidal compositions Expired GB2095109B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8107324A GB2095109B (en) 1981-03-09 1981-03-09 Insecticidal compositions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8107324A GB2095109B (en) 1981-03-09 1981-03-09 Insecticidal compositions

Publications (2)

Publication Number Publication Date
GB2095109A true true GB2095109A (en) 1982-09-29
GB2095109B GB2095109B (en) 1984-07-18

Family

ID=10520243

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8107324A Expired GB2095109B (en) 1981-03-09 1981-03-09 Insecticidal compositions

Country Status (1)

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GB (1) GB2095109B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555449A1 (en) * 1983-11-25 1985-05-31 Applipharm Ctre Rech Applic P Pyrethroids based composition for the topical treatment of cutaneous parasitosis
EP0287346A1 (en) * 1987-04-16 1988-10-19 E.I. Du Pont De Nemours And Company Fungicide compositions
EP0331474A1 (en) * 1988-03-02 1989-09-06 The Wellcome Foundation Limited Spray formulations
WO1990003730A1 (en) * 1988-10-03 1990-04-19 Safer, Inc. Environmentally safe insecticide
US4987142A (en) * 1987-04-14 1991-01-22 E. I. Du Pont De Nemours And Company Fungicide compositions
WO1992003047A1 (en) * 1988-03-02 1992-03-05 Roussel-Uclaf Pesticidal formulations
FR2696318A1 (en) * 1992-10-01 1994-04-08 Sincholle Daniel Insecticidal compsns. against head-lice, body lice, fleas, etc. - contain antioxidants as well as insecticides including essential oils.
US5527823A (en) * 1988-03-02 1996-06-18 Roussel Uclaf Pesticidal formulations
US5700473A (en) * 1995-08-24 1997-12-23 W. Neudorff Gmbh Kg Triglyceride enhanced pyrethrin-based arthropodicidal composition
US6881248B2 (en) * 2002-12-30 2005-04-19 Institute For Medical Research Paint composition

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555449A1 (en) * 1983-11-25 1985-05-31 Applipharm Ctre Rech Applic P Pyrethroids based composition for the topical treatment of cutaneous parasitosis
EP0150638A1 (en) * 1983-11-25 1985-08-07 Centre De Recherche D'applications Pharmaceutiques Laboratoires Applipharm Pyrethroid composition for the local treatment of skin diseases
US4987142A (en) * 1987-04-14 1991-01-22 E. I. Du Pont De Nemours And Company Fungicide compositions
WO1988007814A1 (en) * 1987-04-16 1988-10-20 E.I. Du Pont De Nemours And Company Fungicide compositions
EP0287346A1 (en) * 1987-04-16 1988-10-19 E.I. Du Pont De Nemours And Company Fungicide compositions
EP0331474A1 (en) * 1988-03-02 1989-09-06 The Wellcome Foundation Limited Spray formulations
WO1989007888A1 (en) * 1988-03-02 1989-09-08 The Wellcome Foundation Limited Spray formulations
WO1992003047A1 (en) * 1988-03-02 1992-03-05 Roussel-Uclaf Pesticidal formulations
US5527823A (en) * 1988-03-02 1996-06-18 Roussel Uclaf Pesticidal formulations
CN1039567C (en) * 1988-03-02 1998-08-26 鲁克-艾克勒夫公司 Sprayable liquid composition
WO1990003730A1 (en) * 1988-10-03 1990-04-19 Safer, Inc. Environmentally safe insecticide
US5047424A (en) * 1988-10-03 1991-09-10 Safer, Inc. Environmentally safe insecticide
FR2696318A1 (en) * 1992-10-01 1994-04-08 Sincholle Daniel Insecticidal compsns. against head-lice, body lice, fleas, etc. - contain antioxidants as well as insecticides including essential oils.
US5700473A (en) * 1995-08-24 1997-12-23 W. Neudorff Gmbh Kg Triglyceride enhanced pyrethrin-based arthropodicidal composition
US6881248B2 (en) * 2002-12-30 2005-04-19 Institute For Medical Research Paint composition

Also Published As

Publication number Publication date Type
GB2095109B (en) 1984-07-18 grant

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980309