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Q&A

Plant-Insect Ecosystems

Poster

P-IE: IPM - Field Crops On-Demand Posters

Corn earworm development in Bt and non-Bt corn and implications for resistance evolution

Poster On-Demand

    Presenting Author(s)

  • FR

    Francis Reay-Jones

    Professor
    Clemson University
    Clemson, South Carolina, United States

    • Co-Author(s)

  • Dominic Reisig

    Professor & Extension Specialist
    North Carolina State University
    Plymouth, North Carolina, United States

As part of an ongoing studies in North and South Carolina, pupae of Helicoverpa zea (Boddie) (corn earworm) were collected in field trials with transgenic corn hybrids that produce insecticidal toxins from Bacillus thuringiensis (Bt). Changes over time in H. zea pupal weights between Bt and non-Bt corn hybrids are likely associated with resistance evolution for some Bt toxins.