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Management of the Colorado potato beetle using the entomogenous fungusBeauveria bassiana

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Abstract

Small field plots of Katahdin potatoes on Long Island, NY were treated 6 times in 1980 for control of Colorado potato beetle (CPB)Leptinotarsa decemlineata (Say), Coleoptera: Chrysomelidae, using either the entomogenous fungusBeauveria bassiana (Balsamo) Vuill. (Bb) at 5x 1013 colony forming units/ha or fenvalerate at 0.227 kg active ingredient/ha. No significant differences were found between Bb and fenvalerate treatments in egg mass size and viability or in the total foliage consumed by first generation CPBs. First generation CPB larval populations were significantly higher in Bb plots. Oviposition by first generation adults and second generation beetle populations were higher in fenvalerate plots. Average yield was 29.4 metric tons/ha in fenvalerate plots and 24.6 metric tons/ha in Bb plots (a 16% reduction), but nearby untreated plots were completely defoliated by July 24 and yielded <7 metric tons/ha (> 60% reduction).

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Author notes

  1. R. K. Campbell (Research Assistant)

    Present address: Campbell Scientific Services, Rt. 6, Box 576, 73701, Enid, OK

Authors and Affiliations

  1. Insect Pathology Resource Center, Boyce Thompson Institute for Plant Research, Cornell University, 14853, Ithaca, NY

    T. E. Anderson (Assistant Entomologist) & D. W. Roberts (Senior Insect Pathologist)

  2. Department of Entomology, Cornell University, Long Island Horticultural Research Laboratory, 11901, Riverhead, NY

    M. Semel (Associate Professor)

Authors
  1. R. K. Campbell
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  2. T. E. Anderson
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  3. M. Semel
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  4. D. W. Roberts
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Additional information

Supported in part by grants from Agway, Inc. and the Competitive Research Grants Office, U.S.D.A., grant no. 59-2364-0-1-415-0.

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Campbell, R.K., Anderson, T.E., Semel, M. et al. Management of the Colorado potato beetle using the entomogenous fungusBeauveria bassiana . American Potato Journal 62, 29–37 (1985). https://doi.org/10.1007/BF02871297

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  • DOI: https://doi.org/10.1007/BF02871297

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