Visual Cue Fails to Enhance Bird Repellency of Methiocarb in Ripening Sorghum

  • Richard A. Dolbeer
  • Paul P. Woronecki
  • Roger W. Bullard


Methiocarb (Mesurol®) produces a conditioned aversion which birds associate with a particular treated food and then avoid (Rogers 1974). Numerous field tests have shown that methiocarb is generally effective in reducing bird damage to ripening fruits when applied at rates of 1 to 2 kg/ha. Methiocarb was registered in the United States by the Environmental Protection Agency for use in cherries and blueberries during the 1980’s (Dolbeer et al. 1988). These registrations were withdrawn by the proprietary company in 1989 because of additional studies required by EPA related to methiocarb residues and environmental effects.


Untreated Plot Food Aversion Bird Observation Agelaius Phoeniceus Chemical Repellent 
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Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • Richard A. Dolbeer
    • 1
  • Paul P. Woronecki
    • 1
  • Roger W. Bullard
    • 2
  1. 1.U.S. Department of AgricultureDenver Wildlife Research CenterSanduskyUSA
  2. 2.DenverUSA

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