Counties with variant western corn rootworm populations
Counties with confirmed variant western corn rootworm populations, 1999–2005.
This image appears in the following article:
Counties with variant western corn rootworm populations
[1]
Source URL:
http://www.ipm.iastate.edu/ipm/icm//ipm/icm/node/347
Links:
[1] http://www.ipm.iastate.edu/ipm/icm/2006/3-13/variant.html
