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United States Department of Agriculture

Agricultural Research Service

Title: Corn Rootworm Resistant Host-Plant Resistance; An Update

Authors
item Hibbard, Bruce
item Barry, B
item Darrah, Larry
item Knutson, R - UNIVERSITY OF MISSOURI

Submitted to: National Entomological Society of America Annual Meeting
Publication Type: Abstract Only
Publication Acceptance Date: December 12, 1996
Publication Date: N/A

Technical Abstract: The western corn rootworm is among the most important insect pests in the United States, yet no lines of corn have been identified on which corn rootworm larvae can not develop or develop poorly. We are conducting field, greenhouse, and laboratory screening of exotic corn and corn relatives in an effort to identify germplasm resistant to these major pests. In 1996, we evaluated more than 12,000 roots of nearly 1,000 accessions of corn and corn relatives for resistance to corn rootworms in artificially-infested field trials. Several crosses made from the best of our 1995 germplasm were among our least damaged accessions. In total, several dozen germplasm lines were nominally less damaged than our "resistant" control, NGSDCRW1(S2)C4. Results from the field trials as well as laboratory and greenhouse data will be discussed.

Last Modified: 7/24/2014
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