Page Banner

United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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

Image Number D096-33

Biologist Brien Henry (foreground) and technician Paul Campbell test for herbicide-resistant weeds using a rapid, spectrophotometric leaf disk assay.

Photo by Stephen Ausmus.



640 pixels wide: (D096-33.jpg)




Please visit our Image Gallery
Last Modified: 5/23/2006
Footer Content Back to Top of Page