Students check for an invasive insect threatening hemlock populations in MA, in a study related to the work of Harvard Forest’s David Orwig.

Students check for an invasive insect threatening hemlock populations in MA,

Students check for an invasive insect threatening hemlock populations in MA, in a study related to the work of Harvard Forest’s David Orwig.

Photo courtesy of: 
Pam Snow
From: 
Diversity in the Schoolyard