Page Banner

United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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

Image Number K11745-1

Plant pathologists Paul Tooley and Nina Shishkoff examine rhododendrons for symptoms of infection with the sudden oak death pathogen, Phytophthora ramorum. The plants were inoculated with 5,000 spores and incubated at 100-percent relative humidity to allow infection and symptom development.

Photo by Peggy Greb.



640 pixels wide: (k11745-1.jpg)




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