GB2376887A - Mosquito control using a surfactant which acts as a powerful larvicide - Google Patents
Mosquito control using a surfactant which acts as a powerful larvicide Download PDFInfo
- Publication number
- GB2376887A GB2376887A GB0108391A GB0108391A GB2376887A GB 2376887 A GB2376887 A GB 2376887A GB 0108391 A GB0108391 A GB 0108391A GB 0108391 A GB0108391 A GB 0108391A GB 2376887 A GB2376887 A GB 2376887A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bti
- larvae
- mosquito
- acts
- toxic
- 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
Links
Classifications
-
- 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
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
-
- 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
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
- A01N63/20—Bacteria; Substances produced thereby or obtained therefrom
- A01N63/22—Bacillus
- A01N63/23—B. thuringiensis
-
- 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
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/28—Myrtaceae [Myrtle family], e.g. teatree or clove
-
- 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
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/40—Liliopsida [monocotyledons]
- A01N65/44—Poaceae or Gramineae [Grass family], e.g. bamboo, lemon grass or citronella grass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Plant Pathology (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Agronomy & Crop Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Environmental Sciences (AREA)
- Natural Medicines & Medicinal Plants (AREA)
- Mycology (AREA)
- Pest Control & Pesticides (AREA)
- Virology (AREA)
- Botany (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
By combining insect repelling oils, a Bacillus thuringiensis (Bti), and a suspension agent, in a monomolecular layer the solution is used to control the population growth of mosquitoes in an aquatic environment. The monomolecular solution is a non-toxic and biodegradable surfactant. Surface tension is reduced causing water to enter the breathing tubes of the Larvae or Pupae, drowning them. The Bti is toxic to both Pupae and Larvae and being in the monolayer suspension enhances its effectiveness. The repelling oils discourage the adult mosquito from laying eggs on the surface. The suspension agent, preferably fumed silica, acts as a flotation aid for the Bti.
Description
<Desc/Clms Page number 1>
Mosquito Control using a Surfactant which when applied to breeding grounds acts as a Powerful Larvicide Description In many parts of the world, populations of mosquitoes are on the increase, as they become resistant to insecticides and other methods of control. As a consequence of this, the malaria parasite, which is carried by the mosquito, is now a serious problem for the populations of many countries.
In the past there have been various attempts at controlling the mosquito at the beginning of it's life cycle by directly attacking the larvae or pupae This was done, In the early days, by introducing a film of oil on to the surface of the water where the mosquito larvae were breeding. This prevented the larvae from breathing, but it also affected many other species and polluted the environment.
This was later replaced by non-toxic materials including monomolecular films (monolayers), or foams which starved the larvae of oxygen, but were either difficult to apply, or were not effective at controlling the mosquito at all stages of it's development. They also had a short life span being dispersed quickly by the elements making it uneconomical Insecticides have been used to control the larvae and pupae in breeding grounds, however these affected fish and other species living in the water. The residual chemicals in the water would render the water unsafe to drink.
More recently, biological pest control agents have been developed which are very specific in targeting mosquito larvae One of these is Bacillus thuringiensis subsp. israelensis (Bti) which disrupts the intestinal gut lining of insect larvae by endotoxins. (Also known as BT H14)
<Desc/Clms Page number 2>
Using a Bti has proved effective, but the product in isolation, has several disadvantages Foremost, when it is applied to water it naturally sinks and loses much of its effectiveness. In this state it naturally degrades very quickly.
By using the above methods alone, the adult mosquito, could in certain circumstances, continue to lay eggs on the water surface.
The invention described solves the above problems by attacking the mosquito at all stages of its development in the aquatic environment.
Firstly, a non-toxic monolayer is used as a base.
Secondly, this is combined with a gelling agent, which is capable of holding the Bti in suspension on the surface of water.
Thirdly, insect repelling natural fragrances, citronella and eucalyptus, are added so that the adult mosquito will not lay eggs on the water surface It has been found that the effectiveness of this combination is far greater than that of the individual components in isolation The essential features are :- The monolayer works by reducing the surface tension around the breathing tubes of the larvae and pupae, which allows water to flood the respiratory system leading to drowning . The Bti suspension is particularly effective at terminating the larvae when ingested.
. The insect repelling oils will stop the adult mosquito from laying eggs on the water.
. For a given area, the quantity of the solution required is much less than conventional pesticides as the components are on the surface-where the larvae reside.
. The longevity of the Bti is extended because of the characteristics of the suspension.
. The solution is non-toxic to most other species including humans and is biodegradable.
<Desc/Clms Page number 3>
The monolayer component consists of molecules having a long water repellent (hydrophobic) tail attached to more compact water-attracting (hydrophilic) head. This asymmetry causes the molecules on a water-surface to form as sheet of molecules with hydrophobic tails in the air and hydrophilic heads under water in a monomolecular film.
The first component is the monomolecular film as described above, comprising :- 90% Oleyl Cetyl Alcohol 90/95 with 2 mol EO 10% Cetyl Stearyl Alcohol with 2 mol EO The second is the Biocide :-Bacillus thuringiensis subsp. israelensis (Bti) The third component is the gelling agent : - Fumed Silica- a water-Insoluble gelling agent, which, holds the Bti in suspension and does not cause agglutination.
The fourth is a combination of two insect repelling fragrant oils :-citronella and eucalyptus (0. 5%).
Claims (4)
- Claims 1. That by using repellent oils within the solution, egg laying is inhibited.
- 2. That by using fumed silica, Bti, monolayer and repellent oils, the mosquito's life cycle is interrupted during each of it's aquatic stages
- 3. That the life of the Bti is extended due to the fact that it is held In a suspension.
- 4. That the formulation of the monolayer described, the Bti and the repellent oils are a unique combination providing a non-toxic and biodegradable solution to mosquito control.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0108391A GB2376887B (en) | 2001-04-04 | 2001-04-04 | Mosquito control using surfactant which when applied to breeding ground acts a a powerful larvicide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0108391A GB2376887B (en) | 2001-04-04 | 2001-04-04 | Mosquito control using surfactant which when applied to breeding ground acts a a powerful larvicide |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0108391D0 GB0108391D0 (en) | 2001-05-23 |
GB2376887A true GB2376887A (en) | 2002-12-31 |
GB2376887B GB2376887B (en) | 2005-09-28 |
Family
ID=9912201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0108391A Expired - Fee Related GB2376887B (en) | 2001-04-04 | 2001-04-04 | Mosquito control using surfactant which when applied to breeding ground acts a a powerful larvicide |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2376887B (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2901960A1 (en) * | 2006-06-07 | 2007-12-14 | Kaeve Sarl | Mosquito control method for public garden, involves utilizing drowning unit for drowning pupa of mosquito by releasing air retained by pupa body, where air is released by directing drowning sound wave emitted by sonotrode on pupa |
WO2011013133A2 (en) * | 2009-07-28 | 2011-02-03 | The Energy And Resources Institute (Teri) | Novel biopesticide compositions and method for isolation and characterization of same |
WO2011022790A2 (en) | 2009-08-28 | 2011-03-03 | Rudiger Cruysberghs | Mosquito repellent |
CN102949297A (en) * | 2012-06-14 | 2013-03-06 | 江西农业大学 | Mosquito repellent gel and preparation method thereof |
WO2014170893A1 (en) * | 2013-04-18 | 2014-10-23 | Nobactra Israel Ltd. | Oil carrying particulate matter and uses thereof |
EP3207799A1 (en) * | 2016-02-16 | 2017-08-23 | Philippe Ceulemans | Improved control of insects laying their eggs in stagnant waters |
EP4056036A1 (en) * | 2021-03-08 | 2022-09-14 | Reckitt & Colman (Overseas) Hygiene Home Limited | Pest control composition |
WO2022189777A1 (en) * | 2021-03-08 | 2022-09-15 | Reckitt & Colman (Overseas) Hygiene Home Limited | Pest control composition |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109748021A (en) * | 2019-03-04 | 2019-05-14 | 默克环保科技(湖南)有限公司 | A kind of house refuse terminal and landfill yard deodorization fly-killing agent |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4865842A (en) * | 1986-01-06 | 1989-09-12 | Novo Industri A/B | Pesticidal composition for water treatment |
US5484600A (en) * | 1995-01-20 | 1996-01-16 | Merdian, L.L.C. | Insecticidal composite timed released particle |
WO1996028973A1 (en) * | 1995-03-17 | 1996-09-26 | Lee County Mosquito Control District | Controlled delivery compositions and processes for treating organisms in the environment |
-
2001
- 2001-04-04 GB GB0108391A patent/GB2376887B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4865842A (en) * | 1986-01-06 | 1989-09-12 | Novo Industri A/B | Pesticidal composition for water treatment |
US5484600A (en) * | 1995-01-20 | 1996-01-16 | Merdian, L.L.C. | Insecticidal composite timed released particle |
WO1996028973A1 (en) * | 1995-03-17 | 1996-09-26 | Lee County Mosquito Control District | Controlled delivery compositions and processes for treating organisms in the environment |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2901960A1 (en) * | 2006-06-07 | 2007-12-14 | Kaeve Sarl | Mosquito control method for public garden, involves utilizing drowning unit for drowning pupa of mosquito by releasing air retained by pupa body, where air is released by directing drowning sound wave emitted by sonotrode on pupa |
WO2011013133A2 (en) * | 2009-07-28 | 2011-02-03 | The Energy And Resources Institute (Teri) | Novel biopesticide compositions and method for isolation and characterization of same |
WO2011013133A3 (en) * | 2009-07-28 | 2011-05-05 | The Energy And Resources Institute (Teri) | Novel biopesticide compositions and method for isolation and characterization of same |
AU2009350416B2 (en) * | 2009-07-28 | 2014-08-14 | The Energy And Resources Institute (Teri) | Novel biopesticide compositions and method for isolation and characterization of same |
WO2011022790A2 (en) | 2009-08-28 | 2011-03-03 | Rudiger Cruysberghs | Mosquito repellent |
CN102949297A (en) * | 2012-06-14 | 2013-03-06 | 江西农业大学 | Mosquito repellent gel and preparation method thereof |
WO2014170893A1 (en) * | 2013-04-18 | 2014-10-23 | Nobactra Israel Ltd. | Oil carrying particulate matter and uses thereof |
US9380788B2 (en) | 2013-04-18 | 2016-07-05 | Nobactra Israel Ltd. | Package for plant antimicrobial treatment |
US10285405B2 (en) | 2013-04-18 | 2019-05-14 | Nobactra Israel Ltd. | Oil carrying particulate matter and uses thereof |
US10674731B2 (en) | 2013-04-18 | 2020-06-09 | Nobactra Israel Ltd. | Package for plant antimicrobial treatment |
EP3207799A1 (en) * | 2016-02-16 | 2017-08-23 | Philippe Ceulemans | Improved control of insects laying their eggs in stagnant waters |
EP4056036A1 (en) * | 2021-03-08 | 2022-09-14 | Reckitt & Colman (Overseas) Hygiene Home Limited | Pest control composition |
WO2022189777A1 (en) * | 2021-03-08 | 2022-09-15 | Reckitt & Colman (Overseas) Hygiene Home Limited | Pest control composition |
Also Published As
Publication number | Publication date |
---|---|
GB0108391D0 (en) | 2001-05-23 |
GB2376887B (en) | 2005-09-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
S117 | Correction of errors in patents and applications (sect. 117/patents act 1977) |
Free format text: REQUEST FILED; REQUEST FOR CORRECTION UNDER SECTION 117 FILED ON 26 MAY 2011 |
|
S117 | Correction of errors in patents and applications (sect. 117/patents act 1977) |
Free format text: REQUEST NOT PROCEEDED WITH; REQUEST FOR CORRECTION UNDER SECTION 117 FILED ON 26 MAY 2011 NOT PROCEEDED WITH ON 23 FEBRUARY 2012 |
|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20120404 |