Gerhardi Livestock Protector Field Test Records --
Scope and Contents
This collection consists of two folders of field test reports and related correspondence and documentation. Correspondents include: Dick Elredge, Walter Dykstra, Frank C Loring, Jack Berryman, Bruce P. Stollberg, Homer S. Ford, T.E. Gerhardi, John Findlay, Jack E. Hemphill, Norton Miner, Willard Nelson, Paul T. Bunke, Thomas E. Gerhardi, William Ruckelhaus, and Charles Conley.
Dates
- 1968-1972
Biographical / Historical
The Gerhardi Livestock protector was a device designed to repel predators from livestock pastures. It was invented by Canadian Thomas Edward Gerhardi and was commercially sold beginning in 1961. The device was patented in the United States in 1966. The basic structure was a vented nylon capsule containing odoriferous chemicals that was pinned to animals’ ears. The chemicals used included tertiary octyl mercaptan (artificial skunk odor) and naphthalene (mothball odor), smells which tend to repel coyotes and other predators.
The Department of Interior’s Division of Wildlife Services conducted studies with the Livestock Protector with the goal of possibly registering the device with the U.S. Environmental Protection Agency, which would allow the device to be used in the United States. However, it was never registered and never saw widespread use in the United States.
Extent
.2 linear feet
Language of Materials
English
Abstract
The Gerhardi Livestock protector was a device designed to repel predators from livestock pastures. It was invented by Thomas Edward Gerhardi in Canada. The Department of Interior’s Division of Wildlife Services conducted studies with the Livestock Protector with the goal of possibly registering the device with the U.S. Environmental Protection Agency, which would allow the device to be used in the United States. However, it was never registered and never saw widespread use in the United States. This collection consists of two folders of field test reports and related correspondence and documentation.
Legal Status
Copyright restrictions may apply. User is responsible for all copyright compliance.
Repository Details
Part of the National Wildlife Research Center Archives Repository