Transmission of Nosema pyrausta in adult European corn borers

  • Solter L
  • Maddox J
  • Onstad D
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The microsporidium Nosema pyrausta causes a chronic disease in the European corn borer, Ostrinia nubilalis. This disease may be important in the natural regulation of this pest. We performed two studies to investigate transmission of the disease in adult European corn borers. In the first study, adult corn borers became infected when spores were ingested via a water/food source. In the second study, uninfected females and their offspring rarely became infected after the females mated with infected males; however, other sources of contamination could be implicated when infection did occur. We determined that infected males mated as effectively as uninfected males and produced offspring. Levels of infection, however, may influence these capabilities. © 1991.

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  • Leellen F. Solter

  • Joseph V. Maddox

  • David W. Onstad

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