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Insecticidal compositions and methods of using same

a technology of insecticidal compositions and compositions, applied in the field of insecticidal compositions, can solve the problems of poor efficacy of insecticidal soap by itself, affecting the osmotic relationship of cellular osmotic cells, and disrupting the cellular osmotic relationship, so as to achieve the effect of poor efficacy and effective produ

Inactive Publication Date: 2005-11-03
WOODSTREAM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a non-poisonous and safe insecticide that effectively kills a broad range of insects with a synergistic effect. The invention combines insecticidal soap with essential oils, which individually have limited effectiveness but act in concert to provide high total killing power with a short kill time. The invention also includes pyrethrins, which are not readily soluble in water, and an alcohol to help solubilize the pyrethrins. The combination of ingredients is effective in removing the waxy layer covering the insects' bodies, rupturing cell membranes, and disrupting the nervous system of insects. The invention is environmentally safe, not harmful to humans or pets, and can be easily disposed of without contaminating the environment.

Problems solved by technology

In addition, insecticidal soap by itself, has poor efficacy on hard bodied insects (i.e. beetles), and the combination of an essential oil and soap provides a novel formulation that is able to control a broader range of insects.
Soap will also cause the rupturing of cell membranes and disrupt the cellular osmotic relationships.
It is believed that the combination has a synergistic effect in that the soap solubilizes the waxy outer layer of the insect and weakens the cell membranes, thereby allowing the essential oil to penetrate the exoskeleton and reach the insect's nervous system more quickly.

Method used

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  • Insecticidal compositions and methods of using same
  • Insecticidal compositions and methods of using same
  • Insecticidal compositions and methods of using same

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0060] The following compositions were compared for effectiveness: a) the Victor® Poison Free Ant and Roach Killer formulation containing 4.0% mint oil as the sole active ingredient; b) Safer® brand Insect Killing Soap formulation providing a concentration of 2.0% potassium salts of fatty acids as the sole active ingredient; c) a formulation of 4.0% mint oil with 2.0% potassium salts of fatty acids; d) a formulation of 4.0% mint oil with 2.0% potassium salts of fatty acids and 3.0% lecithin; e) Victor® Poison Free Wasp & Hornet Killer formulation containing 8% mint oil with 1% SLS as the active ingredients; f) a formulation of 8% mint oil with 2% potassium salts of fatty acids; and g) a formulation of 8% mint oil with 2% potassium salts of fatty acids and 1% SLS. Previous experiments demonstrated that treatment of insects with 1% SLS alone did not kill insects within the 300 second time period used in testing (data not shown). All of the above formulations were tested using the Amer...

example 2

[0090] A study using the methodology of Example 1 was performed using German cockroaches (Blatella germanica). Treatments 1, 2, and 3 consisted of aerosolized test material using carbon dioxide as the propellant. Aerosol cans were filled at LHB Industries (St. Louis, Mo.) per Woodstream specification. Treatment 4 was formulated in the Woodstream laboratory, placed into a bottle, and dispensed using a hand pump trigger sprayer.

[0091] The experimental formulations were in the following percentages of the admixed components by weight:

Treatment 1: Victor® Poison Free Ant and Roach Insect Killer

[0092] 4.0% mint oil [0093] 5.0% mineral oil [0094] 3.0% lecithin [0095] 88.0% water

Treatment 2: 4.0% Mint Oil with 3.0% Lecithin and 2.0% Potassium Salts of Fatty Acids [0096] 4.00% mint oil [0097] 5.00% mineral oil [0098] 3.00% lecithin [0099] 4.04% Safer Brand Insect Killing Soap Concentrate [0100] 83.96% water

Treatment 3: 4.0% Mint Oil with 2.0% Potassium Salts of Fatty Acids [0101] 4....

example 3

[0107] A range of concentrations of pyrethrins from 0.01% to 0.5% by weight can be combined with 0.25% to 8% by weight of at least two essential oils such as mint and D-limonene or palmarosa oil and thyme oil. The formulation will include an anti-oxidant such as ethoxyquin, a tocopherol, or BHT to prevent the pyrethrins from breaking down. As pyrethrins are not readily water soluble, an alcohol may also be included, such as SD3A or SDA3C or other denatured alcohols in the composition to help solubilize the pyrethrins. Mineral oil or an equivalent substance can also be used at a concentration of about 5% by weight to allow the composition to remain on the surface for up to four weeks. The balance is water.

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Abstract

The present invention provides novel insecticidal formulations comprising an effective concentration of: 1) at least one or more essential oils and an insecticidal soap; 2) at least one or more essential oils, an insecticidal soap, and pyrethrins; 3) at least one or more essential oils and pyrethrins; 4) at least one or more essential oils, an insecticidal soap and a synergist, such as sodium lauryl sulfate, sodium dodecyl sulfate or lecithin; 5) at least one or more essential oils, an insecticidal soap, a synergist, and pyrethrins; and 6) at least one or more essential oils, a synergist, and pyrethrins. A carrier oil, such as mineral oil, may be added to any of the foregoing formulations.

Description

RELATED APPLICATION [0001] This application is entitled to and hereby claims the priority of co-pending U.S. Provisional Application Ser. No. 60 / 562,252, filed Apr. 15, 2004.BACKGROUND OF THE INVENTION [0002] 1. Field of Invention [0003] This invention relates generally to insecticidal compositions and methods of using same to control various crawling and flying insect pests, and, in its preferred embodiments, relates more particularly to a combination of synergistic non-poison insecticides by themselves and in combination with a known poison insecticide at a greatly reduced concentration, and adapted to unexpectedly increase insect mortality and reduce kill time. [0004] 2. Description of Prior Art [0005] Commercially available insecticides, including those available for home use, commonly comprise active ingredients or poisons which are not only toxic to the target insect pests, but, if used in relatively confined environments and delivered as aerosol sprays, can be present in suff...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A01N25/00A01N37/02A01N53/00A01N57/00A61K36/54A61K36/55A61K36/58A61K36/752A61K36/8962
CPCA01N37/02A01N65/26A01N53/00A01N25/30A01N25/22A01N25/02A01N65/00A01N57/12A01N49/00A01N41/02A01N31/16A01N27/00A01N2300/00
Inventor ANDERSON, DAVID L.
Owner WOODSTREAM CORP
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