Photograph of Armillaria Mellea Root Rot of Jack Pines
Summary
Original caption: Armillaria mellea root rot of jack pines. Shows symptoms of the disease infiltration of resin in the surface layers of wood.
Historic Photographs
Tags
Date
01/09/1934
Location
Chequamegon-Nicolet National Forest (Wis.)
Source
The U.S. National Archives
Copyright info
No known copyright restrictions