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Measuring the Efficacy of the Biological Control Program for Sugarcane Moth Borer Diatraea Saccharalis in Barbados: Joint Infestation Surveys for the Period 1999-2002

Author

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  • Paulraj, Litta
  • Gibbs, Ian

Abstract

This paper reviews the biological control program for the sugarcane mothborer Diatraea saccharalis (F.) in Barbados over the period 1999-2002. The data for this period were analyzed, fitting infestation level to variety, crop, rainfall zone, and year, assuming a logistic regression model with a Poisson distribution of all main effects (variety, crop, rainfall zone, and year). The results showed that all first order interactions were highly significant (p<0.001) and that the overall joint infestation levels remained below the Economic Threshold Level (ETL) of 5% joints bored. This finding suggests that the pest is continuing to be effectively controlled by its two parasitoids Cotesia flavipes and Lixophaga diatraeae.

Suggested Citation

  • Paulraj, Litta & Gibbs, Ian, 2003. "Measuring the Efficacy of the Biological Control Program for Sugarcane Moth Borer Diatraea Saccharalis in Barbados: Joint Infestation Surveys for the Period 1999-2002," 39th Annual Meeting, July 13-18, 2003, Grenada, West Indies 256724, Caribbean Food Crops Society.
    • Handle: RePEc:ags:cfcs03:256724
    DOI: 10.22004/ag.econ.256724
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