Compounds for pest control and methods for their use
AssigneesThe United States of America, as represented by the Secretary, Department of Health and Human Services, State of Oregon acting by and through the State Board of Higher Education on behalf of Oregon State University
InventorsGary O. Maupin, Joseph Karchesy, Nicholas A. Panella, Marc C. Dolan
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Abstract
Compounds, compositions, and methods for controlling an arthropod pest population that employ an eremophilane sesquiterpene parent structure are presented. The compounds have minimal adverse or toxic effects on humans, non-human animals, and the natural environment. The compounds may be isolated from natural sources, semi-synthesized from naturally occurring compounds, or completely synthesized. The compounds may be applied directly to a pest, or the locus of a pest, and function as topical or ingestible toxins. Eremophilane sesquiterpenes 13-hydroxy-valencene, valencene-11,12-epoxide, valencene-13-aldehyde, and nootkatone-1,10-11,12-diepoxide are exemplary compounds.
Claims27
A method for controlling an arthropod, comprising contacting an arthropod selected from the taxonomic order or subclass Acarina, Anoplura, Blattaria, Homoptera, Hymenoptera, Lepidoptera, or Siphonaptera, with a pesticidally effective amount of a pest control agent comprising isolated nootkatone, wherein the nootkatone is present in a concentration of at least about 0.01 ppm (parts per million) and less than 65×10−3 percent (wt:vol), and a pesticidally acceptable carrier.
A method for controlling an arthropod, comprising contacting an arthropod selected from the taxonomic order or subclass Acarina, Anoplura, Blattaria, Homoptera, Hymenoptera, Lepidoptera, or Siphonaptera with a pesticidally effective amount of a pesticidal composition consisting essentially of nootkatone and a pesticidally acceptable carrier, wherein the nootkatone is present in a concentration of at least about 0.01 ppm (parts per million) and less than 65×10−3 percent (wt:vol).
A method for controlling an arthropod, comprising contacting an arthropod selected from the taxonomic order or subclass Acarina, Anoplura, Blattaria, Homoptera, Hymenoptera, Lepidoptera, or Siphonaptera with a pesticidally effective amount of a pesticidal composition comprising a pesticidal eremophilane sesquiterpene and a pesticidally acceptable carrier;
- wherein the pesticidal eremophilane sesquiterpene consists of nootkatone, and wherein the nootkatone is present in a concentration of at least about 0.01 ppm (parts per million) and less than 65×10−3 percent (wt:vol).
Dependencies are inferred from the claim text.