Submitted to: Entomology International Congress
Publication Type: Abstract Only
Publication Acceptance Date: 8/26/1996
Publication Date: N/A
Technical Abstract: The western corn rootworm, Diabrotica virgifera virgifera LeConte, is an economic pest of maize, Zea mays, in the United States and annually is responsible for over one billion dollars in loss and management costs. This insect is relatively new in Europe, and it is a potential pest there. Our research is focused on plant resistance to the insect. We have identified antibiosis in exotic maize germplams from Mexico and South America. Other sources of resistance have been identified in germplams of relatives of maize: Tripsacum, teosinte, Z. perennis, and Z. Diplopernnis. level of resistance and cultivar adaptability of the various germplasms is currently being enhanced by backcrossing and recurrent selection.