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United States Department of Agriculture

Agricultural Research Service

Title: Biological Aspects of Larvae of the Western Corn Rootworm (Coleoptera: Chrysomelidae) and How They Relate to Insect Resistance Management

item Wilson, Ted - ENTOMOLOGY-UNIV OF MO
item Clark, Thomas - ENTOMOLOGY-UNIV OF MO

Submitted to: Entomological Society of America Annual Meeting
Publication Type: Abstract Only
Publication Acceptance Date: October 26, 2003
Publication Date: N/A

Technical Abstract: The registration of transgenic corn with resistance to corn rootworm larval feeding offers a viable alternative to insecticides for managing the most economically important insect pests of corn. Maintaining insect susceptibility to transgenic crops (resistance management) is in the interest of growers, the Environmental Protection Agency, and industry, but requires an understanding of corn rootworm biology that does not currently exist. Two experiments were conducted during the 2003 field season to evaluate: i) across-row movement by western corn rootworm larvae in 76 cm and 56 cm row spacings and the potential use of tractor tire traffic as a mechanism to prevent across-row movement, and ii) establishment success of two egg densities from varying number of point sources around the plant. Results will be discussed in terms of resistance management.

Last Modified: 4/22/2015
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