Page Banner

United States Department of Agriculture

Agricultural Research Service

Related Topics


Download a high-resolution (300dpi) digital image here

Image Number D1907-3

Entomologists Aaron Gassmann (left), of Iowa State University, and Tom Sappington, with ARS, observe magnified western corn rootworm larvae to measure the size of their head capsules. Larvae exposed to Bt corn roots may grow more slowly than unexposed larvae, and head capsule width is an accurate indicator of larval growth stage.

 

Photo by Stephen Ausmus.


640 pixels wide: (d1907-3.jpg)




Please visit our Image Gallery

Last Modified: 8/12/2016
Footer Content Back to Top of Page