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.
Strawberry crowns cut longitudinally; exposing vascular tissue discoloration (shown by arrow). (A) Infested Fof and non-treated DSE (positive control). (B) Non-infested Fof and non-treated DSE (negative control). (C) Infested Fof, treated DSE.
