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.
Gypsy moth populations monitored annually as the area defoliated in north‐eastern USA by the US Forest Service Northeastern Area (http://www.na.fs.fed.us/fhp/gm/cfm_files/dsp/dsp_defchart.cfm). Arrow indicates the year when mortality from fungus was first observed.
