Insecticidal compositions and methods of using the same

• US 9,220,273 B2
• Filed: 03/13/2015
• Issued: 12/29/2015
• Est. Priority Date: 08/29/2011
• Status: Active Grant

• Current Assignee: Clarke Mosquito Control Products, Inc.
• Original Assignee: Clarke Mosquito Control Products, Inc.
• Inventors: Saunders, Marie Elizabeth, Ostrowski, Jonathan David, Willis, Michael Dean, Ramoutar, Darryl, Tyszko, Joanna Maria
• Primary Examiner(s): Tate, Christopher R
• Assistant Examiner(s): DAVIS, DEBORAH A
• Application Number:
  US14/656,929
• Publication Number:
  US 20150181886A1
• Time in Patent Office: 291 Days
• Field of Search: 424/405, 424/725, 424/727
• US Class Current: 1/1
• CPC Class Codes: A01N 2300/00 Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
• CPC Class Codes: A01N 25/00 Biocides, 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
• CPC Class Codes: A01N 25/02 containing liquids as carriers, diluents or solvents
• CPC Class Codes: A01N 25/30 characterised by the surfactants
• CPC Class Codes: A01N 27/00 Biocides, pest repellants or attractants, or plant growth regulators containing hydrocarbons
• CPC Class Codes: A01N 31/14 Ethers
• CPC Class Codes: A01N 55/00 Biocides, pest repellants or attractants, or plant growth regulators, containing organic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen and sulfur containing organo-phosphorus compounds A01N57/00
• CPC Class Codes: A01N 59/00 Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
• CPC Class Codes: A01N 61/02 Mineral oils; Tar oils; Tar; Distillates, extracts or conversion products thereof containing single chemical compounds isolated from these materials A01N27/00 - A01N59/00
• CPC Class Codes: A01N 65/00 Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof containing compounds of determined constitution A01N27/00 - A01N59/00
• CPC Class Codes: A01N 65/40 Liliopsida [monocotyledons]
• CPC Class Codes: C02F 1/68 by addition of specified substances, e.g. trace elements, for ameliorating potable water medicinal water A61K
• CPC Class Codes: C02F 2103/007 Contaminated open waterways, rivers, lakes or ponds

Abstract

Provided are mosquito larvicide compositions comprising a mineral oil and a methylated coconut oil. The compositions may further comprise a silicone and at least one surfactant. The compositions can kill mosquito larvae in swamps, floodwater areas, and other areas where mosquitoes develop. Further provided are methods for mosquito control. The methods may comprise coating the surface of a body of water.

Claims

1. A composition effective for mosquito control, said composition comprising:

i) about 5% to about 15% mineral oil;

ii) about 70% to about 90% methylated coconut oil;

iii) about 1% to about 10% surfactant; and

iv) about 0.2% to about 4% silicone;

wherein said composition reduces a mosquito population treated therewith by at least about 95%.

2. The composition of claim 1, wherein the silicone comprises polydimethylsiloxane.

3. The composition of claim 1, wherein the surfactant comprises a nonionic surfactant.

4. The composition of claim 3, wherein the nonionic surfactant comprises ethoxylated tridecyl alcohol.

5. The composition of claim 1, wherein the mineral oil is present in an amount of about 8% to about 12% by weight.

6. The composition of claim 1, wherein the methylated coconut oil is present in an amount of about 80% to about 90% by weight.

7. The composition of claim 1, wherein the at least one surfactant is present in an amount of about 3% to about 6% by weight.

8. The composition of claim 1, wherein the silicone is present in an amount of about 0.2% to about 0.4% by weight.

9. The composition of claim 1, wherein the composition excludes nonylphenol surfactants.

11. A formulation comprising the composition of claim 1, wherein the formulation is in the form of a spray.

10. A composition effective for mosquito control, said composition comprising about 8% to about 12% mineral oil, about 80% to about 90% methylated coconut oil, about 3% to about 6% nonionic surfactant, and about 0.2% to about 0.4% polydimethylsiloxane;

wherein said composition reduces a mosquito population treated therewith by at least about 95%.

12. A method for mosquito control comprising applying a composition to a surface of a body of water;

wherein said composition comprises;

i) about 5% to about 15% mineral oil;

ii) about 70% to about 90% methylated coconut oil;

iii) about 1% to about 10% surfactant; and

iv) about 0.2% to about 4% silicone.

13. The method of claim 12, wherein the composition forms a coating on the surface of the water.

14. The method of claim 12, wherein the composition is applied in an amount effective to kill at least about 95% of the mosquito population.

15. The method of claim 12, wherein the mosquito control comprises killing mosquito larvae in or on the body of water.

16. The method of claim 12, wherein the mosquito control comprises inhibiting adult mosquitoes from laying eggs in or on the body of water.

17. The method of claim 12, wherein the mosquito is any mosquito of the genus Aedes, Culex, or Anopheles.