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Efficacy of Strychnine and Zinc Phosphide Cabbage Baits in Controlling Ground Squirrels in Diamond Valley, Nevada

  • Author(s): Balliette, John
  • O’Brien, John M.
  • Eisemann, John D.
  • et al.
Abstract

A field trial was conducted to determine the efficacy of strychnine and zinc phosphide cabbage baits for controlling ground squirrels in Diamond Valley, Nevada. The reduction in aboveground ground squirrel activity was 83% for strychnine and 70% for zinc phosphide. Similar results were found for reductions in burrow activity: 88% for strychnine and 70% for zinc phosphide. Strychnine appeared to be slightly more effective than zinc phosphide, but both appeared to be effective for ground squirrel control.

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