Gypsy Moth Egg Masses On Sawed Lumber
Photograph From the July 1914 Issue of National Geographic Magazine.
Text under picture says: "Sawed lumber, bearing egg-masses of the gypsy-moth, serves as
an easy means for the spread of the moths".
Photograph From the July 1914 Issue of National Geographic Magazine.
Text under picture says: "Sawed lumber, bearing egg-masses of the gypsy-moth, serves as
an easy means for the spread of the moths".