Patents by Inventor David R. Smitley

David R. Smitley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4752468
    Abstract: A method of selectively controlling plant feeding mites in the family Tetranychidae, such as the Twospotted spider mite (Tetranychus urticae), is disclosed. The method comprises innoculating an agricultural field containing crop plants with a Neozygites fungus which selectively infects plant feeding mites without infecting other insects. The population of plant feeding mites is thereby reduced to a level at which they cannot substantially damage the crop plants.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: June 21, 1988
    Assignee: North Carolina State University
    Inventors: George G. Kennedy, David R. Smitley