Sentinel plot at Andrew Jackson Demonstration Farm
A sentinel plot located at the Andrew Jackson Demonstration Farm near Maquoketa in Jackson County. (Ralph von Qualen)
This image appears in the following article:
Sentinel plot at Andrew Jackson Demonstration Farm
[1]
Source URL:
http://www.ipm.iastate.edu/ipm/icm//ipm/icm/node/322
Links:
[1] http://www.ipm.iastate.edu/ipm/icm/2006/2-27/track.html
