Project Number: 3622-21220-007-02
Project Type: Specific Cooperative Agreement

Start Date: Aug 04, 2009
End Date: Jan 30, 2013

Objective:
Evaluate the role of feeding behavior of WCR larvae that are resistant to Cry3Bb1 transgenic corn in their resistance.

Approach:
A series of experiments will be conducted in order to support or refute the assertion that western corn rootworm feeding behavior plays a role in their survival on transgenic Cry3Bb1-expressing corn. Approaches will include direct observation, carbon isotope analysis of western corn rootworm larvae fed mixtures of Bt corn and cool season grasses for various lengths of time, cross sectioning Bt and isoline roots fed by resistant and susceptible rootworm larvae to see if they feed on different root tissue, and related follow-up experiments.