 Image Number K5994-1 |
Technician Catherine Corr compares a healthy tomato plant (left) to one infected by tobacco mosaic virus (right).
Photo by Jack Dykinga
An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.